CN103914165B - A kind of recognition methods and device based on multiconductor screen, electronic equipment - Google Patents

Abstract

An embodiment of the present invention provides a kind of recognition methods based on multiconductor screen and device, electronic equipment, detect the touch signal that object to be identified inputs multiconductor screen, and according to default correspondence, the touch signal is determined as to the characteristic feature of object, feature according to the object again, identify the object, because the foundation for determining characteristic feature is default correspondence, therefore, it need not be identified based on determining the corresponding contact of index point, so, size and its spacing to index point do not limit, so, the area and its spacing of index point can reduce, so as to suitable for the identification to small area object.

Description

A recognition method and device based on a multi-touch screen, and electronic equipment

technical field

The invention relates to the field of human-computer interaction, in particular to a recognition method and device based on a multi-touch screen, and electronic equipment.

Background technique

The multi-touch touch screen supports simultaneous input of multiple touch points. The touch screen based on multi-touch can realize the recognition of the object. The specific recognition method is: pre-set the mark points made of specific materials on the object, and the touch screen receives the mark points. After inputting the signal, firstly identify the contact point corresponding to the mark point on the screen, and use the spatial information between the contact points to characterize the object and distinguish different objects. For example, if marking points are set on chess pieces, the multi-touch touch screen can be used as a chessboard.

Since the recognition of objects depends on the spatial information of the touch points sensed by the touch screen, before the recognition, it is necessary to obtain the corresponding touch points of the mark points. In the existing multi-touch screen recognition method, the mark point The corresponding contact methods are all optimized for finger touch. Therefore, it is required that the marker points set on the object have a certain area, and the distance between the marker points is greater than a certain distance to accurately determine the marker point correspondence. of contacts.

Therefore, the existing method of using a touch screen to identify objects has requirements on the size of marker points and the distance between them, and cannot be applied to the identification of small-area objects.

Contents of the invention

In view of this, the present invention provides a recognition method and device based on a multi-touch screen. , and cannot be applied to the problem of small-area object recognition.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:

A recognition method based on a multi-touch screen, comprising:

Detecting a touch signal input by an object to be identified to the multi-touch screen;

determining the characteristic feature of the object corresponding to the touch signal according to the preset correspondence between the touch signal and the characteristic feature;

The object is identified based on the characteristic features of the object.

Preferably, the detection of the touch signal input by the object to be identified on the multi-touch screen includes: detecting the area where a preset mark on the object to be identified is input to the multi-touch screen;

The determining the characteristic characteristic of the object corresponding to the touch signal according to the preset correspondence between the touch signal and the characteristic characteristic includes:

Determining the shape of the region and the corresponding contact according to a preset database, the database at least includes a one-to-one correspondence between the region and the shape and the contact;

The identifying the object according to the characteristic features of the object includes:

identifying the object based on the determined shape of the region; and/or

identifying the location of the object based on the determined corresponding contact points; and/or

The rotation angle of the object is determined according to the angle parameter of the shape of the area.

Preferably, the method for creating the database includes:

Determining the shape of each preset symbol for the input area of the multi-touch screen;

Identify the contacts corresponding to each shape;

Store the corresponding relationship between each preset logo and its respective shape and contact to create a database;

Wherein, the process of determining and storing the region and shape of any one of the preset signs and the corresponding contacts is as follows:

Detect the area where the preset mark on the current object is input to the multi-touch screen;

Adjusting the filter value so that the current shape of the region has a one-to-one correspondence with the region, and recording the first filter value corresponding to the current first shape;

receiving the first touch point of the current first shape input by the user;

storing correspondences among the first filter value, the first shape, and the first contact.

Preferably, the determining the shape of the region and the corresponding contacts according to the preset database includes:

filtering the region using different filter values stored in the database;

matching regions obtained using different filter values with shapes stored in said database;

When the area is the first shape, determine the first shape and the first contact corresponding to the first shape as characteristic features corresponding to the area.

Preferably, the contacts include:

any point within the area of said first shape;

Preferably, it also includes:

Run related application programs according to the identified object information; or input the identified object information into related application programs.

An identification device based on a multi-touch screen, comprising:

A signal detection module, configured to detect a touch signal input by an object to be identified to the multi-touch screen;

A feature determination module, configured to determine the characteristic feature of the object corresponding to the touch signal according to the preset correspondence between the touch signal and the characteristic feature;

The object identification module is configured to identify the object according to the characteristic features of the object.

Preferably, the signal detection module is specifically:

The area detection module is used to detect the area where the preset mark on the object to be identified is input to the multi-touch screen;

The feature determination module is specifically:

The shape and contact point determination module is used to determine the shape of the region and the corresponding contacts according to the preset database, and the database includes at least one-to-one correspondence between the shape of the region and the contacts;

The object recognition module is specifically:

An identification module, configured to identify the object according to the determined shape of the area; and/or identify the position of the object based on the determined corresponding contact point; and/or identify the position of the object based on the determined shape of the area The angle parameter determines the rotation angle of the object.

Preferably, it also includes:

The database creation module is used to determine the shape of each preset mark on the input area of the multi-touch screen, determine the contact point corresponding to each shape, and associate each preset mark with its respective shape and touch point Store the corresponding relationship between them to create a database;

Wherein, the process of determining and storing the region and shape of any one of the preset signs and the corresponding contacts is as follows:

Detect the area where the preset mark on the current object is input to the multi-touch screen;

Adjusting the filter value so that the current shape of the region has a one-to-one correspondence with the region, and recording the first filter value corresponding to the current first shape;

receiving the first touch point of the current first shape input by the user;

storing correspondences among the first filter value, the first shape, and the first contact.

Preferably, the shape and contact determination module includes:

a filtering unit, configured to use different filtering values stored in the database to filter the region;

a matching unit, configured to match the regions obtained from the different filter values with the shapes stored in the database;

A determining unit, configured to determine, when the area is the first shape, that the first shape and the first contact corresponding to the first shape are characteristic features corresponding to the area.

Preferably, it also includes:

The input module is configured to run related application programs according to the identified object information; or input the identified object information into related application programs.

An electronic device comprising:

Multi-touch touch screen;

A memory for storing a preset correspondence between touch signals and characteristic features;

The processor is configured to determine the characteristic feature of the object corresponding to the touch signal according to the preset correspondence between the touch signal and the characteristic feature; and identify the object according to the characteristic feature of the object.

The recognition method and device based on the multi-touch screen and the electronic equipment described in the embodiments of the present invention detect the touch signal input by the object to be recognized to the multi-touch screen, and determine the touch signal as The characteristic features of the object, and then identify the object according to the characteristics of the object, because the basis for determining the characteristic features is the preset corresponding relationship, therefore, it is not necessary to identify the contact points corresponding to the marker points. Therefore, There is no limit to the size and spacing of the marker points, so the area and the spacing of the marker points can be reduced, which is suitable for the recognition of small-area objects.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

FIG. 1 is a flow chart of an identification method based on a multi-touch screen disclosed in an embodiment of the present invention;

Fig. 2 is a flow chart of another identification method based on a multi-touch screen disclosed in an embodiment of the present invention;

Fig. 3 is a schematic diagram of setting different marks on different objects in a recognition method based on a multi-touch screen disclosed in an embodiment of the present invention;

Fig. 4 is a schematic diagram of prior art identification;

FIG. 5 is a flow chart of another identification method based on a multi-touch screen disclosed in an embodiment of the present invention;

Fig. 6 is a schematic structural diagram of a recognition device based on a multi-touch screen disclosed in an embodiment of the present invention;

Fig. 7 is a schematic structural diagram of another identification device based on a multi-touch screen disclosed in an embodiment of the present invention;

Fig. 8 is a schematic structural diagram of another identification device based on a multi-touch screen disclosed in an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of an electronic device disclosed by an embodiment of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

The embodiment of the present invention discloses a recognition method based on a multi-touch screen, which can be applied to a controller of a multi-touch screen. As shown in FIG. 1 , the method includes:

S101: Detect a touch signal input by an object to be identified to the multi-touch screen;

S102: Determine the characteristic feature of the object corresponding to the touch signal according to the preset correspondence between the touch signal and the characteristic feature;

S103: Identify the object according to the characteristic features of the object.

The method described in this embodiment is discussed in detail below:

The embodiment of the present invention discloses a recognition method based on a multi-touch screen, which can be applied to a controller of a multi-touch screen. As shown in FIG. 2, the method includes:

S201: Detect the area where the preset mark on the object to be recognized is input to the multi-touch screen;

Usually, the recognition of different objects by the touch screen can be realized by setting different marks on different objects to be recognized, because the shapes of the areas produced by the contact between the mark points in different marks and the touch screen are different, therefore, different marks It can represent different objects, and it only needs to pre-set the one-to-one correspondence between different objects and different symbols.

S202: Determine the shape of the region and the corresponding contacts according to the preset database;

The database includes at least one-to-one correspondence between regions, shapes and contacts;

Wherein, the characteristic feature may preferably be the shape of the region and the contact corresponding to the shape of the region.

S203: Identify the object according to the shape; identify the position of the object according to the contact point, and determine a rotation angle of the object according to an angle parameter of the shape of the area.

As shown in Figure 3, the method described in this embodiment is illustrated:

Set a triangular mark on object A, set an oval mark on object B, place object A and object B on the touch screen, the touch screen detects that the area where object A is input is a triangle, and the area that receives output from object B is an ellipse. In the preset database, look for a shape matching the area, and when a triangle is found, determine that the ID of the object corresponding to the triangle is the ID of object A, and use the contact corresponding to the triangle as the contact of object A. Likewise, the ID and contact of the object B can be determined.

In the prior art, it is first necessary to distinguish different objects according to the corresponding contacts of the signals input by the signs, and then to distinguish different objects according to the spatial positional relationship of the contacts. As shown in Figure 4, three signs are used to construct different When placing object A on the touch screen, the touch screen first determines the contact point corresponding to the mark on object A, and then determines the ID of object A according to the spatial position relation of the contact points, such as forming an isosceles triangle. Therefore, if the distance between the markers on object A is too close, different marker points cannot be distinguished, then it is possible to determine the two markers as a contact point, if the marker is too small, it may be considered as noise, and it is not performed The determination of the contacts, therefore, requires the area and spacing of the marking points in the prior art.

It can be seen that the recognition method based on the multi-touch screen described in this embodiment converts the touch area of the mark on the touch screen into Be able to represent and distinguish the shape and contact points of this sign, so as to distinguish different signs and identify different objects. Compared with the prior art, the method described in this embodiment recognizes different objects while determining the contact point corresponding to the mark, that is, the recognition of the object is not based on determining the contact point. Therefore, for the size of the mark point Its spacing is not required, so it can be used for identification of various objects.

Yet another identification method based on a multi-touch screen disclosed in an embodiment of the present invention, as shown in FIG. 5 , includes:

S501: Determine the shape of an input area of each preset sign on the multi-touch screen;

S502: Determine the contacts corresponding to each shape;

S503: storing the corresponding relationship between each preset logo and its respective shape and contact, so as to create a database;

Wherein, the process of determining and storing the shape of any one of the preset signs and the corresponding contacts is as follows:

Detect the area where the preset mark on the current object is input to the multi-touch screen;

Adjusting the filter value so that the current shape of the region has a one-to-one correspondence with the region, and recording a first filter value corresponding to the first shape;

The filter value refers to a filter value (threshold value for image filtering) used to filter the signal input by the sign, and different shapes can be obtained if the filter value is different.

receiving the first touch point of the current first shape input by the user;

The first touch point may be any point within the area of the first shape selected by the user.

Store the correspondence between the first filter value, the first shape, and the first contact.

That is: the database stores different signs and their one-to-one corresponding characteristic features, that is, the corresponding relationship between shapes and contacts, and the determination method of each characteristic feature is the same. Therefore, different markers may correspond to different characterizing features.

S504: Filter the region by using different filter values stored in the database;

Filtering is performed in turn using the filter values stored in the database, in order to determine the shape stored in the database.

S505: Match the regions obtained from the different filter values with the shapes stored in the database;

After filtering with each filter value, the shape of the resulting region needs to be matched with the shape stored in the database.

S506: When the area is in the first shape, determine that the first shape and a first contact corresponding to the first shape are characteristic features corresponding to the area.

In this embodiment, preferably one shape corresponds to one contact, and the contact may be the centroid of the shape or the like.

It should be noted that, when the region is a rotated shape of the first shape, the shape is identified as the first shape according to parameters in the shape. That is to say, in the method described in this embodiment, if the object is rotated or the angle of discharge is changed, it can also recognize the input of the object to the touch screen according to the parameters in the shape, such as the relationship between the angle and the side of the triangle. The shape of the region.

S507: Identify the preset marker according to the characteristic feature, so as to identify the object.

That is, after the positional relationship is successfully matched in the database, the characteristic feature corresponding to the positional relationship is determined as the characteristic feature corresponding to the touch point of the mark input on the object to be recognized.

S508: Run related application programs based on the information of the recognized object.

Wherein, the information of the recognized object includes information such as the identification, position, and rotation angle of the object. This step specifically includes: running a related application program according to the identified object information; or outputting the information of the identified object to a related application program to change the running state of the application program.

For example, a chessboard is displayed on the touch screen, and different chess pieces are placed on different positions of the chessboard. When the user changes the position of a specific chess piece, the application recognizes the identity and new position of the corresponding chess piece, and then generates different sound effects according to the corresponding game rules to provide a novel user experience.

In practical applications, after the touch controller acquires the original array image of the touch input signal, it first uses different filtering thresholds in sequence to filter the image, and then performs shape matching. Output the representative coordinates (touch points) in this mode, and further output the currently matched image form (including but not limited to rotation angle and other information) as needed.

In the prior art, when it is necessary to distinguish between two different objects, at least two or more marker points need to be set on each object, and so on, when multiple different objects need to be identified, more markers are needed However, the current multi-touch screen can not recognize too many multi-touch points at the same time. It is far from enough for the recognition of different objects. Take three different objects as an example. To recognize these three objects, you need to occupy 9 touch points. If there are four different objects, the touch screen cannot recognize them.

It can be seen that the existing object recognition method based on the multi-touch screen is limited by the characteristics of the multi-touch screen, and when different objects are recognized, too many touch points are occupied.

The method described in this embodiment pre-creates a database including the correspondence between signs and characteristic features. During the process of identifying signs, the shape of the sign and its contacts are determined according to the database. In the process, different objects are identified as respective touch points, therefore, the number of touch points can be determined as one, and thus the number of touch screen touch points occupied by object recognition can be reduced.

Corresponding to the above method embodiments, the embodiment of the present invention also discloses a recognition device based on a multi-touch screen, as shown in FIG. 6 , including:

A signal detection module 601, configured to detect a touch signal input by an object to be identified to the multi-touch screen;

A characteristic determining module 602, configured to determine the characteristic characteristic of the object corresponding to the touch signal according to the preset correspondence between the touch signal and the characteristic characteristic;

The object identification module 603 is configured to identify the object according to the characteristic features of the object.

The device described in the embodiment of the present invention is discussed in detail below:

The embodiment of the present invention also discloses an identification device based on a multi-touch screen, as shown in Figure 7, including:

The area detection module 701 is used to detect the contact point of the preset mark on the object to be recognized to the input of the multi-touch screen;

The shape and contact point determination module 702 is configured to determine the shape of the area and the corresponding contacts according to a preset database, the database at least includes a one-to-one correspondence between the shape of the area and the contacts;

The recognition module 703 is configured to recognize the object according to the shape, and recognize the position of the object according to the contact.

Further, the device described in this embodiment may be shown in Figure 8, specifically including:

The database creation module 801 is used to determine the shape of each preset mark on the input area of the multi-touch screen, determine the contact point corresponding to each shape, and associate each preset mark with its respective shape and touch The corresponding relationship between points is stored to create a database;

Wherein, the process of determining and storing the shape of any one of the preset signs and the corresponding contacts is as follows:

Detect the area where the preset mark on the current object is input to the multi-touch screen;

Adjusting the filter value so that the current shape of the region has a one-to-one correspondence with the region, and recording the first filter value corresponding to the current first shape;

receiving the first touch point of the current first shape input by the user;

storing correspondences among the first filter value, the first shape, and the first contact.

a filtering unit 802, configured to use different filtering values stored in the database to filter the region;

A matching unit 803, configured to match the regions obtained from the different filter values with the shapes stored in the database;

The determining unit 804 is configured to determine, when the area is the first shape, that the first shape and a first contact corresponding to the first shape are characteristic features corresponding to the area.

The recognition module 805 is configured to recognize the object according to the shape, and recognize the position of the object according to the contact.

The input module 806 is configured to run an application program related to the object according to the recognized object.

The embodiment of the present invention also discloses an electronic device, as shown in FIG. 9 , including:

Multi-touch touch screen 901;

A memory 902, configured to store a preset correspondence between touch signals and characteristic features;

The processor 903 is configured to determine the characteristic feature of the object corresponding to the touch signal according to the preset correspondence between the touch signal and the characteristic feature; and identify the object according to the characteristic feature of the object.

Specifically, the specific working process of the processor includes: detecting the area where the preset mark on the object to be identified is input to the multi-touch screen, determining the characteristic feature corresponding to the area according to the preset database, and The preset mark is identified according to the characterizing feature, so as to identify the object.

The electronic device described in this embodiment may be a communication terminal, a PC, or a PAD, etc., which is not limited here.

If the functions described in the method of this embodiment are implemented in the form of software function units and sold or used as independent products, they can be stored in a computing device-readable storage medium. Based on this understanding, the part of the embodiment of the present invention that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions to make a A computing device (which may be a personal computer, a server, a mobile computing device or a network device, etc.) executes all or part of the steps of the methods described in various embodiments of the present invention. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk, and other media that can store program codes. .

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same or similar parts of each embodiment can be referred to each other.

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (12)

1. A kind of 1. recognition methods based on multiconductor screen, it is characterised in that including：

   The controller of multiconductor screen detects the touch signal that object to be identified inputs the multiconductor screen；

   The controller of multiconductor screen is according to the correspondence between pre-set touch signal and characteristic feature, definite and institute State the characteristic feature of the corresponding object of touch signal；

   The controller of multiconductor screen identifies the object according to the characteristic feature of the object；

   Wherein, the characteristic feature includes the shape in the region that default mark inputs the multiconductor screen on object to be identified At least one of in the angle parameter of the shape of shape, the corresponding contact of the shape in the region and the region.
2. 2. according to the method described in claim 1, it is characterized in that, the controller of the multiconductor screen detects object to be identified The touch signal of multiconductor screen input is included：Detect default on object to be identified indicate to the multiconductor screen The region of input；

   The controller of the multiconductor screen is determined according to the correspondence between pre-set touch signal and characteristic feature The characteristic feature of the object corresponding with the touch signal includes：

   According to pre-set database, determine the shape in the region and corresponding contact, to include at least in the database One-to-one relationship between region and shape and contact；

   The controller of the multiconductor screen identifies that the object includes according to the characteristic feature of the object：

   According to the shape in the definite region, the object is identified；And/or

   The definite corresponding contact of foundation, identifies the position of the object；And/or

   According to the angle parameter of the shape in the region, the rotation angle of the object is determined.
3. 3. according to the method described in claim 2, it is characterized in that, the creation method of the database includes：

   Determine shape of each default mark to the region of multiconductor screen input；

   Determine the corresponding contact of each shape；

   Each default mark and the correspondence between respective shape and contact are stored, to create database；Its In, determine and store region and shape and the process of corresponding contact of any one mark in each default mark For：

   Detect the region that default mark inputs the multiconductor screen on current object；

   Adjust filter value so that the current shape in the region and the region be one-to-one relationship, record and the currently Corresponding first filter value of one shape；

   Receive the first contact of current first shape input by user；

   Store the correspondence between first filter value, the first shape and first contact.
4. 4. according to the method described in claim 3, it is characterized in that, described according to pre-set database, the area is determined The shape in domain and corresponding contact include：

   Using the different filter values stored in the database, the region is filtered；

   The region being worth to using different filterings is matched with the shape stored in the database；

   When the region is the first shape, the first shape and the first contact corresponding with the first shape are determined For characteristic feature corresponding with the region.
5. 5. according to 3 or 4 any one of them method of claim, it is characterised in that the contact includes：

   Any point in the region of the first shape.
6. 6. method according to claim 1 or 2, it is characterised in that further include：According to the object information identified, come Run relevant application program；Or the information for the object that will identify that, input relevant application program.
7. A kind of 7. identification device based on multiconductor screen, it is characterised in that including：

   Signal detection module, the controller for multiconductor screen detect object to be identified and the multiconductor screen input are touched Touch signal；

   Characteristic determination module, the controller for multiconductor screen is according between pre-set touch signal and characteristic feature Correspondence, determines the characteristic feature of the object corresponding with the touch signal；

   Object identification module, the controller for multiconductor screen identify the object according to the characteristic feature of the object；

   Wherein, the characteristic feature includes the shape in the region that default mark inputs the multiconductor screen on object to be identified At least one of in the angle parameter of the shape of shape, the corresponding contact of the shape in the region and the region.
8. 8. device according to claim 7, it is characterised in that the signal detection module is specially：

   Region detection module, for detecting the region that default mark inputs the multiconductor screen on object to be identified；

   The characteristic determination module is specially：

   Shape and contact determining module, for according to pre-set database, determining the shape in the region and corresponding touching Point, include at least in the database region shape and contact between one-to-one relationship；

   The object identification module is specially：

   Identification module, for the shape according to the definite region, identifies the object；And/or according to definite described right The contact answered, identifies the position of the object；And/or the angle parameter of the shape according to the region, determine the object Rotation angle.
9. 9. the device according to claim 7 or 8, it is characterised in that further include：

   Database creation module, for determining shape of each default mark to the region of multiconductor screen input, really Determine the corresponding contact of each shape, and each default mark and the correspondence between respective shape and contact are deposited Storage, to create database；

   Wherein it is determined that and store region and shape and corresponding contact of any one mark in each default mark Process be：

   Detect the region that default mark inputs the multiconductor screen on current object；

   Adjust filter value so that the current shape in the region and the region be one-to-one relationship, record and the currently Corresponding first filter value of one shape；

   Receive the first contact of current first shape input by user；

   Store the correspondence between first filter value, the first shape and first contact.
10. 10. device according to claim 9, it is characterised in that the shape and contact determining module include：

    Filter element, for using the different filter values stored in the database, being filtered to the region；

    Matching unit, for will be carried out from the different regions that are worth to of filtering with the shape stored in the database Match somebody with somebody；

    Determination unit, for when the region is the first shape, determine the first shape and with the first shape Corresponding first contact is characteristic feature corresponding with the region.
11. 11. the device according to claim 7 or 8, it is characterised in that further include：

    Input module, the object information identified for foundation, to run relevant application program；Or the thing that will identify that The information of body, inputs relevant application program.
12. 12. a kind of electronic equipment, it is characterised in that including：

    Multi-contact touch screen；

    Memory, for storing the correspondence between pre-set touch signal and characteristic feature；

    Processor, for according to the correspondence between pre-set touch signal and characteristic feature, determining and the touch The characteristic feature of the corresponding object of signal；Characteristic feature according to the object identifies the object；Wherein, the characteristic feature Shape, the shape in the region in the region of multiconductor screen input are corresponded to including default mark on object to be identified Contact and the region shape angle parameter at least one of.