CN102663134B - Hot picture loading method, control server, client and system - Google Patents
Hot picture loading method, control server, client and system Download PDFInfo
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- CN102663134B CN102663134B CN201210132937.5A CN201210132937A CN102663134B CN 102663134 B CN102663134 B CN 102663134B CN 201210132937 A CN201210132937 A CN 201210132937A CN 102663134 B CN102663134 B CN 102663134B
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Abstract
The embodiment of the invention discloses a hot picture loading method, a control server, a client and a system. The hot picture loading method comprises the steps of transmitting data of a hot picture to a client; transmitting a drawing order and a hot picture identifier if the data of the hot picture drawn by the client is indicated to be already transmitted to the client, and instructing the client to load texture information of the data corresponding to the hot picture identifier. By adopting the scheme, the hot picture identifier corresponding to the hot picture is established, only the hot picture identifier is needed to transmit when the client is instructed to draw the hot picture, and the hot picture is unnecessary to transmit, so that the transmission volume of the picture data can be reduced, and the network load can be reduced. In addition, since the picture data is not required to transmit repeatedly, the client is unnecessary for establishing the repeated texture information, so that the memory usage can be reduced, and the system performance of the client can be improved.
Description
Technical Field
The invention relates to the technical field of image processing, in particular to a hot spot picture loading method, a control server, a client and a system.
Background
The hot picture is a picture embedded in the base map, and the application field of the hot picture is many, for example, the hot picture of a map in the field of a high-definition Geographic Information System (GIS) for a tiled wall.
The implementation method for loading the mass GIS hot spot pictures on the splicing wall generally comprises the following steps:
a1: the control server carries out pretreatment on the map, and the pretreatment specifically comprises the following steps: and generating a plurality of pictures with the same size according to different scales, and then displaying the pictures on the spliced wall in a distributed display mode. In this step, each scale corresponds to a large image, and the preprocessing is to preprocess the large image, divide the large image into a plurality of small images (for example, 256 × 256) with the same size, and finally display the small images on each client. The picture shown here is taken as a background.
A2: the control server pre-backs up picture data, and if picture elements displayed on the spliced wall in real time are needed, the control server sends an instruction for drawing the hot picture to the client and sends the picture data.
A3: the client stores the received picture data into the texture memory linked list, and calls and displays the received picture data according to the instruction of drawing the hot picture; therefore, the hot spot picture can be normally displayed when moving across screens.
The inventor finds out in the process of implementing the embodiment of the invention that: the control server is required to send picture data of the hot picture to the client when the hot picture is drawn. When the loading of massive picture data is required to be realized, the picture data required to be sent by the control server is excessive, so that the load of a network is excessive. On the other hand, for picture data repeatedly displayed, the client creates a repeated texture memory, which causes excessive memory occupation and slow speed of the client, and the system performance is low.
Disclosure of Invention
The embodiment of the invention provides a hot spot picture loading method, a control server, a client and a system, which are used for reducing network load and improving the performance of a client system.
A hot spot picture loading method comprises the following steps:
sending picture data of the hot picture to a client;
if the picture data of the hot picture drawn by the client is indicated to be sent to the client;
sending a drawing instruction and a hot picture identifier to a client, and instructing the client to load texture information of the picture data corresponding to the hot picture identifier.
A hot spot picture loading method comprises the following steps:
receiving picture data of a hot picture sent by a control server;
creating a texture information linked list, and storing the texture information of the picture data of the hot picture and the hot picture identification corresponding to the hot picture into the texture information linked list;
receiving a drawing instruction and a hot picture identifier sent by a control server;
and searching and loading the texture information of the hot picture corresponding to the received picture identification from the texture information linked list.
A control server, comprising:
the picture sending unit is used for sending the picture data of the hot picture to the client;
the indication sending unit is used for indicating that the picture data of the hot picture drawn by the client side is sent to the client side; sending a drawing instruction and a hot picture identifier to a client, and instructing the client to load texture information of the picture data corresponding to the hot picture identifier.
A client, comprising:
the picture receiving unit is used for receiving the picture data of the hot picture sent by the control server;
the texture creating unit is used for creating a texture information linked list and storing the texture information of the picture data of the hot picture and the hot picture identification corresponding to the hot picture into the texture information linked list;
the loading receiving unit is used for receiving the drawing instruction and the hot picture identification sent by the control server;
and the loading control unit is used for searching and loading the texture information of the hot spot picture corresponding to the received picture identifier from the texture information linked list.
A hotspot picture loading system comprises:
the control server is used for sending the picture data of the hot picture to the client; if the picture data of the hot picture drawn by the client is indicated to be sent to the client; sending a drawing instruction and a hot picture identifier to a client, and instructing the client to load texture information of picture data corresponding to the hot picture identifier;
the client is used for receiving the picture data of the hot picture sent by the control server; creating a texture information linked list, and storing the texture information of the picture data of the hot picture and the hot picture identification corresponding to the hot picture into the texture information linked list; receiving a drawing instruction and a hot picture identifier sent by a control server; and searching and loading the texture information of the hot picture corresponding to the received picture identification from the texture information linked list.
According to the technical scheme, the embodiment of the invention has the following advantages: by establishing the hot picture identification corresponding to the hot picture, only the hot picture identification needs to be sent when the client is instructed to draw the hot picture, and the hot picture does not need to be sent, so that the sending amount of picture data can be reduced, and the network load can be reduced. In addition, because picture data does not need to be sent repeatedly, and the client does not need to create repeated texture information, the memory occupation can be reduced, and the system performance of the client is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic flow chart of a method according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of another method according to an embodiment of the present invention;
FIG. 3A is a schematic structural diagram of a system for splicing walls according to an embodiment of the present invention;
FIG. 3B is a schematic flow chart of another method according to an embodiment of the present invention;
FIG. 4 is a diagram illustrating a control server according to an embodiment of the present invention;
FIG. 5 is a diagram illustrating a control server according to an embodiment of the present invention;
FIG. 6 is a diagram illustrating a control server according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a client according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of a client according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of a client according to an embodiment of the present invention;
fig. 10 is a schematic diagram of a client structure according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An embodiment of the present invention provides a hot spot picture loading method, as shown in fig. 1, including:
101: sending picture data of the hot picture to a client;
102: if the picture data of the hot picture drawn by the client is indicated to be sent to the client; sending a drawing instruction and a hot picture identifier to a client, and instructing the client to load texture information of the picture data corresponding to the hot picture identifier.
By adopting the embodiment of the invention, the hot picture identification corresponding to the hot picture is established, so that only the hot picture identification needs to be sent when the client is instructed to draw the hot picture, and the hot picture does not need to be sent, thereby reducing the sending amount of picture data and further reducing the network load. In addition, because picture data does not need to be sent repeatedly, and the client does not need to create repeated texture information, the memory occupation can be reduced, and the system performance of the client is improved.
Optionally, the creator of the hotspot picture identifier may be a control server or a client, or may be in other manners, for example, the control server and the client each receive input of other devices;
if the control server creates the hot picture identifier, the method specifically includes:
before sending the drawing instruction to the client, the method further comprises: generating a hot spot picture identifier corresponding to the hot spot picture; sending the hot picture identification to the client, and indicating the client to establish a corresponding relation between the hot picture identification and the hot picture; or,
if the client creates the hot picture identifier, the method specifically comprises the following steps:
after the picture data of the hot picture is sent to the client, the method further comprises the following steps:
and receiving a hot picture identification which is sent by the client and corresponds to the hot picture.
If the scheme of creating the hot picture identifier by the control server is adopted, the creation object of the hot picture identifier can be directed to all the hot pictures backed up at the control server.
Corresponding to the method shown in fig. 1, an embodiment of the present invention further provides another hot spot picture loading method, where the method is implemented at a client, and as shown in fig. 2, the method includes:
201: receiving picture data of a hot picture sent by a control server;
202: creating a texture information linked list, and storing the texture information of the picture data of the hot picture and the hot picture identification corresponding to the hot picture into the texture information linked list;
203: receiving a drawing instruction and a hot picture identifier sent by a control server;
204: and searching and loading the texture information of the hot spot picture corresponding to the received picture identification from the texture information linked list.
By adopting the embodiment of the invention, the hot picture identification corresponding to the hot picture is established, so that only the hot picture identification needs to be sent when the client is instructed to draw the hot picture, and the hot picture does not need to be sent, thereby reducing the sending amount of picture data and further reducing the network load. In addition, because picture data does not need to be sent repeatedly, and the client does not need to create repeated texture information, the memory occupation can be reduced, and the system performance of the client is improved.
Optionally, the creator of the hotspot picture identifier may be a control server or a client, or may be in other manners, for example, the control server and the client each receive input of other devices;
if the control server creates the hot picture identifier, the method specifically includes:
before the creating the texture information linked list, the method further comprises: receiving a hot picture identification which is sent by a control server and corresponds to a hot picture; or,
if the client creates the hot picture identifier, the method specifically comprises the following steps:
after receiving the picture data of the hot picture sent by the control server, the method further comprises the following steps:
and creating a hot picture identifier, establishing a corresponding relation between the hot picture identifier and the hot picture, and sending the hot picture identifier to the control server.
In order to describe the embodiment of the present invention in more detail, the embodiment of the present invention provides a method for creating an identifier of a hot spot picture by using a registration scheme in a technical environment of a wall splicing, the identifier of the hot spot picture is embodied by using a registration number and a texture number, and the method is described by taking a picture of a camera which loads and displays 5000 same hot spot pictures as an example. It should be noted that the embodiment of the present invention may be applied to other scenes where hot spot pictures need to be loaded, and the above scenes and implementation examples should not be construed as the only limitations of the embodiment of the present invention. Referring to fig. 3A, the wall splicing system according to the embodiment of the present invention includes a control server and a client, where the client includes clients 1 to N, the control server is responsible for controlling image display and data transmission of the client, and the client can be understood as a display unit in a wall splicing.
As shown in fig. 3B, the method for displaying a large number of hot pictures in a distributed manner in a wall splicing system of the present invention + includes the following steps:
step 301: the client initializes and creates a linked list of the texture information of the picture. The texture information linked list is used for storing the registration number and the texture number of the hot spot picture.
The initialized structure of the texture information linked list can be referred to as follows:
step 302: and the control server sends a picture registration instruction and a picture data packet with the picture data of the camera to the client.
It should be noted that: the image data carries information such as a registration number of a hot spot image (i.e., a camera), a size of a texture created by the client, and original data of the hot spot image (i.e., image data of the hot spot image, binary data of the hot spot image after decoding). The registration picture instruction is used to instruct the client to establish a corresponding relationship between the registration number and the hot picture, and the following embodiments will be described in detail.
Step 303: the client receives the picture data packet and analyzes the picture data packet to obtain picture data of the hot picture and a registration number of the hot picture, texture information is created according to the hot picture, and the texture information is stored in a texture information linked list.
It should be noted that: according to the texture information linked list, the texture information linked list stores the texture information and the registration number, and then the corresponding relation among the hot spot picture, the texture information of the hot spot picture and the registration number is established in the list item of the texture information linked list. Therefore, the texture information linked list can manage the corresponding relation between the registered hot spot pictures and the texture information at the client side, and provides conditions for retrieving the corresponding texture information according to the registered numbers before drawing the pictures. The data of the linked list is shown in table 1:
TABLE 1
Texture handle (i.e., texture number) in Table 1: the method includes the steps that after a client receives a registration picture command and picture data sent by a control server, picture texture information is created, and a texture number is a number corresponding to texture information created when a texture is created. The purpose of creating the texture numbers is to: when loading the texture information, the texture information linked list can be searched directly by the texture number to obtain the texture information and the texture information is displayed. The correspondence between the registration number and the texture number is established in table 1.
Step 304: and the control service server sends a picture drawing instruction and a picture information data packet to the client.
It should be noted that: in this step, the picture information data packet carries a registration number of the hot picture (the registration number corresponds to the hot picture to be drawn: the camera), and can also carry service information such as the geographic position of the hot picture, such as the display position of the camera on the background base map;
the picture information packet of this step shown in table 1 stores information such as the registration number (1), the geographical position of the hot picture, and the like (5000 information packets corresponding to different geographical positions for the same picture).
Step 305: the client analyzes the picture information data packet to obtain a registration number; and searching corresponding texture information in the texture information linked list according to the registration number and loading the retrieved texture information.
If the texture information needs to be displayed, the following steps can be executed: analyzing the picture data of the hot spot picture corresponding to the registration number (the picture data of 5000 camera hot spot information data and 1 registration number with the number of 1 are obtained by analysis), decoding the picture data of the hot spot picture, and calculating the actual position and the display area of the hot spot picture on the screen (respectively calculating the specific display position of the 5000 cameras on the splicing wall) according to the service information (such as geographic information) of the decoded hot spot picture, the geographic position and the display area of the current display node and other information. And searching a corresponding texture handle (such as the texture number 100 of the texture information corresponding to the registration number 1 in the table 1) in the texture information linked list according to the analyzed registration number of the hot spot picture, and adding the texture handle to the hot spot resource display list. And finally, the client draws and displays the hot spot pictures according to the texture information corresponding to the registration numbers (according to the search result, the texture numbers corresponding to 5000 cameras are all 100, namely the 5000 hot spot pictures call the texture with the handle of 100 for multiple times of rendering and displaying).
An embodiment of the present invention further provides a control server, as shown in fig. 4, including:
the picture sending unit 401 is configured to send picture data of the hot picture to the client;
an indication sending unit 402, configured to send, if the picture data of the hot picture drawn by the client is indicated, the picture data to the client; sending a drawing instruction and a hot picture identifier to a client, and instructing the client to load texture information of the picture data corresponding to the hot picture identifier.
By adopting the embodiment of the invention, the hot picture identification corresponding to the hot picture is established, so that only the hot picture identification needs to be sent when the client is instructed to draw the hot picture, and the hot picture does not need to be sent, thereby reducing the sending amount of picture data and further reducing the network load. In addition, because picture data does not need to be sent repeatedly, and the client does not need to create repeated texture information, the memory occupation can be reduced, and the system performance of the client is improved.
Further, as shown in fig. 5, the control server further includes:
an identifier generating unit 501, configured to generate a hot picture identifier corresponding to a hot picture before sending a drawing instruction to a client;
an identifier sending unit 502, configured to send the hot picture identifier to the client, and instruct the client to establish a correspondence between the hot picture identifier and the hot picture;
alternatively, as shown in fig. 6, the control server further includes:
the identifier receiving unit 601 is configured to receive a hot picture identifier corresponding to a hot picture sent by a client after sending picture data of the hot picture to the client.
An embodiment of the present invention further provides a client, as shown in fig. 7, including:
a picture receiving unit 701, configured to receive picture data of a hot picture sent by a control server;
a texture creating unit 702, configured to create a texture information linked list, and store the texture information of the picture data of the hot picture and a hot picture identifier corresponding to the hot picture in the texture information linked list;
a load receiving unit 703, configured to receive a drawing instruction and a hot picture identifier sent by the control server;
and a loading control unit 704, configured to search and load texture information of the hot picture corresponding to the received picture identifier from the texture information linked list.
By adopting the embodiment of the invention, the hot picture identification corresponding to the hot picture is established, so that only the hot picture identification needs to be sent when the client is instructed to draw the hot picture, and the hot picture does not need to be sent, thereby reducing the sending amount of picture data and further reducing the network load. In addition, because picture data does not need to be sent repeatedly, and the client does not need to create repeated texture information, the memory occupation can be reduced, and the system performance of the client is improved.
As shown in fig. 8, the client further includes: a picture identifier receiving unit 801, configured to receive a hot picture identifier, which is sent by the control server and corresponds to a hot picture, before the texture information linked list is created;
alternatively, as shown in fig. 9, the client further includes: an identifier creating unit 901, configured to create a hot picture identifier after receiving picture data of a hot picture sent by a control server, and establish a corresponding relationship between the hot picture identifier and the hot picture;
a picture identifier sending unit 902, configured to send the hot picture identifier to the control server.
An embodiment of the present invention further provides a hot spot picture loading system, as shown in fig. 10, including:
a control server 1001 for sending the picture data of the hot picture to a client 1002; if the picture data of the hot picture drawn by the client 1002 is indicated to be sent to the client 1002; sending a drawing instruction and a hot picture identifier to the client 1002, and instructing the client 1002 to load texture information of the picture data corresponding to the hot picture identifier;
the client 1002 is configured to receive picture data of a hot picture sent by the control server 1001; creating a texture information linked list, and storing the texture information of the picture data of the hot picture and the hot picture identification corresponding to the hot picture into the texture information linked list; receiving a drawing instruction and a hot picture identifier sent by a control server 1001; and searching and loading the texture information of the hot spot picture corresponding to the received picture identification from the texture information linked list.
Further, the control server 1001 is further configured to generate a hot picture identifier corresponding to the hot picture before sending the drawing instruction to the client 1002; the hotspot picture identification is sent to the client 1002, and the client 1002 is instructed to establish a corresponding relation between the hotspot picture identification and the hotspot picture;
the client 1002 is further configured to receive a hot picture identifier corresponding to a hot picture sent by the control server 1001 before creating the texture information linked list; or,
the control server 1001 is further configured to receive a hot picture identifier corresponding to the hot picture sent by the client 1002 after sending the picture data of the hot picture to the client 1002;
the client 1002 is further configured to create a hot picture identifier after receiving the picture data of the hot picture sent by the control server 1001, establish a corresponding relationship between the hot picture identifier and the hot picture, and send the hot picture identifier to the control server 1001.
By adopting the embodiment of the invention, the hot picture identification corresponding to the hot picture is established, so that only the hot picture identification needs to be sent when the client is instructed to draw the hot picture, and the hot picture does not need to be sent, thereby reducing the sending amount of picture data and further reducing the network load. In addition, because picture data does not need to be sent repeatedly, and the client does not need to create repeated texture information, the memory occupation can be reduced, and the system performance of the client is improved.
It should be noted that, in the embodiment of the client and the control server, the included units are only divided according to the functional logic, but are not limited to the above division as long as the corresponding functions can be implemented; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
In addition, it is understood by those skilled in the art that all or part of the steps in the above method embodiments may be implemented by related hardware, and the corresponding program may be stored in a computer readable storage medium, where the above mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the embodiment of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A hot spot picture loading method is characterized by comprising the following steps:
sending picture data of the hot picture to a client;
if the picture data of the hot picture drawn by the client is indicated to be sent to the client;
sending a drawing instruction, a picture information data packet and a hot picture identifier to a client, and instructing the client to load texture information of picture data corresponding to the hot picture identifier; the texture information is picture texture information embedded in the base map, and the picture information data packet carries the display position of the hot spot picture in the base map.
2. The method of claim 1,
before sending the drawing instruction to the client, the method further comprises: generating a hot spot picture identifier corresponding to the hot spot picture; sending the hot picture identification to the client, and indicating the client to establish a corresponding relation between the hot picture identification and the hot picture; or,
after the picture data of the hot picture is sent to the client, the method further comprises the following steps:
and receiving a hot picture identification which is sent by the client and corresponds to the hot picture.
3. A hot spot picture loading method is characterized by comprising the following steps:
receiving picture data of a hot picture sent by a control server;
creating a texture information linked list, and storing the texture information of the picture data of the hot picture and the hot picture identification corresponding to the hot picture into the texture information linked list;
receiving a drawing instruction, a picture information data packet and a hot picture identifier sent by a control server;
searching and loading texture information of the hot picture corresponding to the received picture identification from the texture information linked list; the texture information is picture texture information embedded in the base map, and the picture information data packet carries the display position of the hot spot picture in the base map.
4. The method of claim 3,
before the creating of the texture information linked list, the method further comprises: receiving a hot picture identification which is sent by a control server and corresponds to a hot picture; or,
after receiving the picture data of the hot picture sent by the control server, the method further comprises the following steps:
and creating a hot picture identifier, establishing a corresponding relation between the hot picture identifier and the hot picture, and sending the hot picture identifier to the control server.
5. A control server, comprising:
the picture sending unit is used for sending the picture data of the hot picture to the client;
the indication sending unit is used for indicating that the picture data of the hot picture drawn by the client side is sent to the client side; sending a drawing instruction, a picture information data packet and a hot picture identifier to a client, and instructing the client to load texture information of picture data corresponding to the hot picture identifier; the texture information is picture texture information embedded in the base map, and the picture information data packet carries the display position of the hot spot picture in the base map.
6. The control server of claim 5,
the control server further includes:
the identification generation unit is used for generating a hot picture identification corresponding to the hot picture before sending a drawing instruction to the client;
the identification sending unit is used for sending the hot picture identification to the client and indicating the client to establish the corresponding relation between the hot picture identification and the hot picture; or, the control server further includes:
and the identification receiving unit is used for receiving the hot picture identification which is sent by the client and corresponds to the hot picture after sending the picture data of the hot picture to the client.
7. A client, comprising:
the picture receiving unit is used for receiving the picture data of the hot picture sent by the control server;
the texture creating unit is used for creating a texture information linked list and storing the texture information of the picture data of the hot picture and the hot picture identification corresponding to the hot picture into the texture information linked list;
the loading receiving unit is used for receiving the drawing instruction, the picture information data packet and the hot picture identifier sent by the control server;
the loading control unit is used for searching and loading the texture information of the hot spot picture corresponding to the received picture identifier from the texture information linked list; the texture information is picture texture information embedded in the base map, and the picture information data packet carries the display position of the hot spot picture in the base map.
8. The client of claim 7,
the client further comprises: the picture identifier receiving unit is used for receiving a hot picture identifier which is sent by the control server and corresponds to a hot picture before the texture information linked list is created; or,
the client further comprises: the identification creating unit is used for creating a hot picture identification after receiving the picture data of the hot picture sent by the control server and creating a corresponding relation between the hot picture identification and the hot picture;
and the picture identification sending unit is used for sending the hot picture identification to the control server.
9. A hotspot picture loading system is characterized by comprising:
the control server is used for sending the picture data of the hot picture to the client; if the picture data of the hot picture drawn by the client is indicated to be sent to the client; sending a drawing instruction, a picture information data packet and a hot picture identifier to a client, and instructing the client to load texture information of picture data corresponding to the hot picture identifier; the texture information is picture texture information embedded in the base map, and the picture information data packet carries the display position of the hot spot picture on the base map;
the client is used for receiving the picture data of the hot picture sent by the control server; creating a texture information linked list, and storing the texture information of the picture data of the hot picture and the hot picture identification corresponding to the hot picture into the texture information linked list; receiving a drawing instruction, a picture information data packet and a hot picture identifier sent by a control server; and searching and loading the texture information of the hot picture corresponding to the received picture identification from the texture information linked list.
10. The system of claim 9,
the control server is further used for generating a hot picture identifier corresponding to the hot picture before sending the drawing instruction to the client; sending the hot picture identification to the client, and indicating the client to establish a corresponding relation between the hot picture identification and the hot picture;
the client is further used for receiving a hot picture identifier which is sent by the control server and corresponds to the hot picture before the texture information linked list is created; or,
the control server is further used for receiving a hot picture identifier which is sent by the client and corresponds to the hot picture after sending the picture data of the hot picture to the client;
the client is further used for creating a hot picture identifier after receiving the picture data of the hot picture sent by the control server, establishing a corresponding relation between the hot picture identifier and the hot picture, and sending the hot picture identifier to the control server.
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| CN103605534B (en) * | 2013-10-31 | 2017-04-05 | 优视科技有限公司 | picture loading method and device |
| CN104881839B (en) * | 2015-04-24 | 2017-11-07 | 中国电子进出口总公司 | It is a kind of based on the focus drawing generating method accelerated parallel |
| CN108170742A (en) * | 2017-12-19 | 2018-06-15 | 百度在线网络技术（北京）有限公司 | Picture public sentiment acquisition methods, device, computer equipment and storage medium |
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| CN101354261A (en) * | 2007-07-27 | 2009-01-28 | 北京灵图软件技术有限公司 | System and method for updating data of navigation system and navigation system |
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