WO2010094220A1

WO2010094220A1 - Method and device for acquiring two-dimensional code from video signal

Info

Publication number: WO2010094220A1
Application number: PCT/CN2010/070517
Authority: WO
Inventors: 江海涛
Original assignee: 华为终端有限公司
Priority date: 2009-02-18
Filing date: 2010-02-04
Publication date: 2010-08-26
Also published as: CN101510269A; CN101510269B

Abstract

Disclosed are a method and a corresponding device for acquiring a two-dimensional code from a video signal, which enable a user to acquire directly said two-dimensional code from said video signal without taking a picture. The process includes: acquiring a video signal which includes a two-dimensional code; acquiring a two-dimensional code image from said video signal; and extracting said two-dimensional code from said two-dimensional code image.

Description

Method and apparatus for acquiring a two-dimensional code in a video signal

This application claims the priority of the Chinese Patent Application entitled "Method and Apparatus for Obtaining the Two-Dimensional Code in Video" from the Chinese Patent Office, Application No. 200910105475. 6 on February 18, 2009. The citations are incorporated herein by reference. Technical field

The present invention relates to the field of communications technologies, and in particular, to a method and apparatus for acquiring a two-dimensional code in a video signal.

Background technique

2-Dimens iona l bar code is a graph of black and white recorded data symbol information distributed in a plane (two-dimensional direction) by a certain geometric pattern; skillfully utilized in code preparation The concept of the "0" and "1" bitstreams that form the basis of the computer's internal logic, using several geometric shapes corresponding to binary to represent literal numerical information, automatically read by image input devices or photoelectric scanning devices for automatic information processing . It has some commonalities of bar code technology: Each code system has its own specific character set; each character occupies a certain width; it has a certain check function. At the same time, it also has the functions of automatic identification of information on different lines and processing of graphic rotation changes. The QR code can express information simultaneously in both the horizontal and vertical directions, so that a large amount of information can be expressed in a small area. As a new automatic identification and information carrier technology, QR code is being understood and recognized by more and more people. At present, QR codes have a wide range of applications in the fields of banking, defense, customs, taxation, public safety, transportation, and civil goods.

Adding a two-dimensional code to a video program to enable the viewer to obtain information in the two-dimensional code is a new application of the two-dimensional code. For example, in a TV commercial, a two-dimensional code containing information such as a web address, a telephone number, and the like is displayed, and the viewer can obtain the two-dimensional code. However, at present, various applications of the two-dimensional code basically need to obtain a two-dimensional code by photographing, and the two-dimensional code appearing in the video signal also needs to be obtained by the user through photographing, which is troublesome in this respect. On the one hand, taking pictures depends on the photo equipment. The resolution and the limitation of the lighting conditions during photographing may result in the fact that the ingested two-dimensional code is not clear enough to affect the accurate extraction of the letter in the two-dimensional code. Summary of the invention

Embodiments of the present invention provide a method and apparatus for acquiring a two-dimensional code in a video signal, so that a user can directly acquire a two-dimensional code from a video signal without taking a picture.

An embodiment of the present invention provides a method for acquiring a two-dimensional code in a video signal, including: acquiring a video signal including a two-dimensional code;

Obtaining an image of the video signal that includes a two-dimensional code;

Extracting the two-dimensional code in the image containing the two-dimensional code.

The embodiment of the invention further provides a video playing device for acquiring a two-dimensional code in a video signal, which comprises:

a video acquisition unit, configured to acquire a video signal including a two-dimensional code;

An image acquiring unit, configured to acquire an image that includes a two-dimensional code in the video signal;

And a two-dimensional code extracting unit, configured to extract a two-dimensional code in the image that includes the two-dimensional code.

The method and device provided by the embodiments of the present invention directly obtain a two-dimensional code by analyzing a video signal, thereby facilitating a user to obtain a two-dimensional code in a video signal, and being unaffected by external conditions such as illumination conditions, so that reading two-dimensional codes The information in the code is more accurate. DRAWINGS

1 is a flow chart of Embodiment 1 of the present invention;

2 is a flow chart of Embodiment 2 of the present invention;

3 is a flow chart showing the steps of adding detection sharpness based on the second embodiment of the present invention; FIG. 4 is a flow chart for adding real-time reading based on the second embodiment of the present invention;

Figure 5 is a flowchart of Embodiment 3 of the present invention;

Figure 6 is a flow chart of Embodiment 4 of the present invention; FIG. 7 is a flowchart of adding a type of prompting a user to select a communication based on Embodiment 4 of the present invention; FIG.

Figure 8 is a schematic structural view of Embodiment 5 of the present invention;

FIG. 9 is a schematic structural diagram of adding a two-dimensional code detecting unit according to Embodiment 5 of the present invention; FIG. 10 is a schematic diagram of adding a two-dimensional code detecting unit, a two-dimensional code prompting unit, and an extracting instruction receiving unit according to Embodiment 5 of the present invention; Schematic;

Figure 11 is a schematic structural view of Embodiment 6 of the present invention;

FIG. 12 is a schematic structural view of Embodiment 7 of the present invention. detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the accompanying drawings. It is apparent that the described embodiments are only a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention. In the various figures, the portion within the dashed box is an optional portion.

Embodiment 1

This embodiment is an embodiment of a method of acquiring a two-dimensional code from a video signal. As shown in Figure 1, this embodiment includes the following steps:

511. Obtain a video signal that includes a two-dimensional code.

The video signal here may be a streaming video signal transmitted by a communication network, or a television program transmitted by wired, terrestrial broadcasting, satellite broadcasting, or, of course, a local video signal. The video signal in the embodiment of the present invention includes, but is not limited to, a video signal transmitted in the above manner. These video signals include two-dimensional codes, which can be mixed in the video signal by means of pre-production or post-production, that is, the two-dimensional code is displayed as part of the video picture, or can be separately transmitted and played during the playback process. The neutralized video signal is superimposed on the screen.

512. Acquire an image that includes a two-dimensional code in the video signal. This step is different from the conventional shooting of the two-dimensional code by the camera device, but analyzes the video signal itself to obtain an image containing the two-dimensional code in the video signal. For example, the image including the two-dimensional code in the video signal may be intercepted, the image including the two-dimensional code may be acquired, or the image corresponding to the two-dimensional code stream included in the video signal may be extracted. The triggering of this step can be triggered manually by the user, for example by clicking on the menu.

51 3 . Extract a two-dimensional code in the image that includes the two-dimensional code.

As shown in the in-line portion of the dotted line of Figure 1, in an embodiment of the present invention, after step S13, the method further includes:

514. Read the information in the two-dimensional code.

This allows the user to use the information in the QR code.

The following embodiments 2 to 4 are specific applications of the embodiment.

Embodiment 2

In this embodiment, a video screenshot is used to acquire a two-dimensional code in the video signal. As shown in FIG. 2, step S12 in the first embodiment specifically includes:

S211, intercepting a picture of the video signal that includes a two-dimensional code, and acquiring the image that includes the two-dimensional code;

This step can be done using the existing video capture method, which stores the data of one frame in the video buffer. This step can be triggered by the user, for example, by the user clicking a menu to perform a screenshot operation, or by typing a command to trigger the operation of the screenshot.

Step S1 3 in the first embodiment is specifically:

S212, performing image recognition on the image containing the two-dimensional code, and extracting the two-dimensional code therein; this step is a conventional step of analyzing and extracting the two-dimensional code, that is, applying image recognition technology, converting key information points in the image into two Dimension code.

With the method of the present embodiment, it is not necessary to perform special processing when encoding a video signal containing a two-dimensional code, which is simple and easy.

In an embodiment of the present invention, it is also possible to perform a definition threshold judgment on the intercepted picture. Only the images that reach the threshold are analyzed. As shown in FIG. 3, between the foregoing steps S211 and S212, it is added:

S21 3: Detect whether the resolution of the image including the two-dimensional code reaches a preset threshold; if the resolution reaches a preset threshold, step S212 is performed, otherwise step S211 is performed.

Sharpness is one of the criteria for measuring the quality of an image. It generally refers to the sensitivity of edge changes in image detail. The two-dimensional code consists of alternating black and white bars to form edge features. The numerical description uses the image sharpness evaluation function. In the actual project, there are many image sharpness evaluation functions that can calculate the sharpness of the image data. For example, the sharpness evaluation function based on the Sobe l edge detection operator can be selected to image the sharpness of the image.

Using this method, it is possible to avoid that the captured video image is unclear and the information in the two-dimensional code cannot be obtained.

Another way to solve this problem is to perform real-time reading on the QR code. If the information in the QR code is not read, the picture in the video signal is continuously intercepted. As shown in FIG. 4, it is added after the aforementioned step S14:

If the reading fails, step S211 is performed.

This method ensures that the information in the QR code is obtained by reading the information in the QR code in real time.

Embodiment 3

This embodiment uses a method of superimposing a signal of a two-dimensional code as a separate code stream into a video signal. As shown in Figure 5, add steps before the aforementioned S12:

S30, detecting whether the video signal includes a two-dimensional code stream; if the video signal includes a two-dimensional code stream, performing step S12; otherwise, the video playback device works normally;

In the separate two-dimensional code stream, a special flag can be set to indicate that it is a two-dimensional code stream, so that it is possible to detect whether there is a two-dimensional code stream in the video signal by detecting the flag.

The foregoing step S 12 is specifically: S 31. Extract an image corresponding to the two-dimensional code stream;

Since in the present embodiment, the signal of the two-dimensional code appears as a single code stream, it is easy to extract.

With the method of the embodiment, it is not necessary to obtain a two-dimensional code by means of image recognition, and the accuracy is high.

The action of extracting the two-dimensional code can be manually triggered by the user. In this case, the user can be prompted first. To this end, as shown in the upper dashed box in Fig. 5, between the aforementioned step S30 and step S31, the booster port:

533, generating a prompt message, prompting the user that the video signal has a two-dimensional code;

There are many ways to prompt. You can pop up a dialog box to inform the user that there is a QR code in the video signal. You can also use the voice to remind the user that there is a QR code in the video signal. In the embodiment of the present invention, including but not limited to, the above method is used to prompt the user that there is a two-dimensional code in the video signal.

534. Receive an extraction instruction that is input by a user according to the prompt information.

Here, the user can input an extraction instruction by means of a mouse click, a touch screen click, a keyboard input, or the like.

本This method allows the user to know in time that the video signal has a two-dimensional code, so that the user can trigger the operation of extracting the two-dimensional code, preventing the user from missing the two-dimensional code in the video signal.

Embodiment 4

In this embodiment, the two-dimensional code in the video signal includes communication contact information such as a web address, a telephone number, an e-mail address, and the video playback device has a communication function such as surfing the Internet and making a call, and the video playback device can directly use the readout. The information in the QR code is used to access the Internet or make calls, or to make other communications. In fact, today's 3G mobile phones can implement these functions. As shown in FIG. 6, after the aforementioned step S1 3, it is added:

S40. Detect whether there is communication contact information in the information read from the two-dimensional code; if yes, execute step S41; otherwise, the video playback device works normally;

In the prior art, communication contact information such as identifying a telephone number has been realized in related products. For example, a mobile phone can identify a phone number, a web address, an email address, and the like.

S41: performing corresponding types of communication according to the type of communication contact information read from the two-dimensional code;

Communication here includes logging in to the webpage, making a call, sending a text message, sending an email, etc. The communication contact information includes a website address, a telephone number, an email address, and the like. According to the type of communication contact information, the corresponding type of communication refers to the communication according to the communication contact information, for example, according to the telephone number, making a call or sending a short message, logging in according to the website, sending an email according to the email address, etc. . In the prior art, identifying the type of such information has been realized in related products, for example, the mobile phone can recognize a telephone number, a web address, an e-mail address, and the like.

Sometimes the QR code may contain both a phone number and a web address, an email address. In this case, as shown in Figure 7, a selection step can be added before step S41:

S43, prompting the user to select a type of communication;

The foregoing step S41 is specifically: performing, according to the communication type selected by the user, corresponding type communication according to the corresponding type of communication contact information in the two-dimensional code read from the two-dimensional code;

For example, if the two-dimensional code has both a phone number and a web address, and the user selects to log in to the web page, the video playing device logs in to the web page according to the website address obtained from the two-dimensional code.

With the method of the embodiment, the user can directly communicate using the communication contact information obtained from the two-dimensional code through the video playing device, which is convenient for the user to use.

Embodiment 5

This embodiment is an embodiment of a video playback apparatus that extracts a two-dimensional code in a video signal. As shown in Figure 8, the device includes:

a video acquiring unit U51, configured to acquire a video signal including a two-dimensional code;

The video signal here may be a streaming video signal transmitted by a communication network, or a television program transmitted by wired, terrestrial broadcast, satellite broadcast, or, of course, a local stored video signal. In the embodiment of the present invention, the video signal includes, but is not limited to, a video signal transmitted in the above manner. These video signals contain two-dimensional codes, which can be pre-made or The post-production method is mixed in the video signal, that is, the two-dimensional code is displayed as part of the video picture, and can also be separately transmitted and superimposed on the screen during playback and the video signal.

The image obtaining unit U52 is configured to acquire an image that includes the two-dimensional code in the video signal, and the two-dimensional code extracting unit U53 is configured to extract the two-dimensional code in the image that includes the two-dimensional code. This unit analyzes the video signal itself and extracts the two-dimensional code.

As shown in the dotted line in FIG. 8, the fifth embodiment can also be added on the basis of the fifth embodiment: a two-dimensional code reading unit U54 for reading information in the two-dimensional code;

This allows the user to use the information in the QR code.

In an embodiment of the present invention, as shown in FIG. 9, in the case where the two-dimensional code is transmitted as a separate code stream and superimposed on the screen during playback and the video signal is superimposed, the two-dimensional code may also be added: a detecting unit U55, configured to detect whether there is a two-dimensional code stream in the video signal; in the separate two-dimensional code stream, a special identifier may be set to indicate that it is a two-dimensional code stream, so that This flag is detected to detect whether there is a two-dimensional code stream in the video signal.

The two-dimensional code extracting unit U53 is specifically configured to extract an image corresponding to the two-dimensional code stream when the two-dimensional code stream is included in the video signal.

In this embodiment, the two-dimensional code is not required to be obtained by using image recognition, and the accuracy is high.

The action of extracting the two-dimensional code can be manually triggered by the user. In this case, the user can be prompted first. To this end, as shown in Figure 10, you can also add:

The two-dimensional code prompting unit U56 is configured to generate prompt information, and prompt the user to have a two-dimensional code in the video signal;

An extraction instruction receiving unit U57, configured to receive an extraction instruction input by the user according to the prompt information;

Here, the user can input and extract by means of mouse click, touch screen click, keyboard input, and the like. Instruction.

This allows the user to know in time that the video signal has a two-dimensional code, so that the user can trigger the operation of extracting the two-dimensional code, preventing the user from missing the two-dimensional code in the video signal.

The following embodiments are specific applications to the fifth embodiment.

Embodiment 6

The device of this embodiment uses a video screenshot to acquire a two-dimensional code in the video signal.

The image obtaining unit U52 in the fifth embodiment is specifically configured to intercept a picture of the video signal that includes the two-dimensional code, and obtain the image that includes the two-dimensional code;

This unit can use the existing video screenshot method to complete the video screenshot, which is to store the data of one frame in the video buffer.

The two-dimensional code extracting unit U5 3 in the fifth embodiment is specifically configured to perform image recognition on the screen intercepted by the video screenshot unit, and extract the two-dimensional code therein.

The implementation of this unit, the existing technology is very mature.

The device of the embodiment obtains the two-dimensional code in the video signal through the video screenshot, and does not need to perform special processing on the video signal including the two-dimensional code, which is simple and easy.

In an embodiment of the present invention, considering that the video screenshot may not be clear enough, affecting the analysis and extraction of the two-dimensional code, the device performs the judgment of the sharpness value on the intercepted image, and only the image with the wide value is used for the image. analysis. As shown in FIG. 11, the image obtaining unit U52 in the fifth embodiment specifically includes:

An intercepting unit U650, configured to intercept a picture that includes a two-dimensional code in the video signal;

a sharpness detecting unit U651 for detecting the sharpness of the captured picture;

Sharpness is one of the criteria for measuring the quality of an image. It generally refers to the sensitivity of edge changes in image detail. The two-dimensional code consists of alternating black and white bars to form edge features. The numerical description uses the image clarity evaluation function. In the actual project, there are many image sharpness evaluation functions that can calculate the sharpness of the image data. For example, the sharpness evaluation function based on the Sobel edge detection operator can be selected to calculate the sharpness. Of course, in the embodiment of the present invention, including but not limited to, the above method is used to calculate the sharpness of the image data.

a determining unit U652, a drawing for the intercepting unit detected by the sharpness detecting unit When the resolution of the surface is lower than the preset threshold, the intercepting unit intercepts the picture containing the two-dimensional code in the video signal again; the clearness of the picture intercepted by the intercepting unit detected by the sharpness detecting unit When the degree is not lower than the preset threshold, the screen intercepted by the intercepting unit is used as the image including the two-dimensional code.

Using this method, it is possible to avoid that the captured video image is unclear and the information in the two-dimensional code cannot be obtained, which improves the accuracy of extracting the two-dimensional code.

Another method can be used to solve this problem, that is, the device performs real-time reading on the two-dimensional code, and if the information in the two-dimensional code is not read, the picture in the video signal is continuously intercepted. That is, in the case of the aforementioned two-dimensional code reading unit U54, the image obtaining unit U52 is further configured to intercept the video signal when the two-dimensional code reading unit U54 cannot read the information in the two-dimensional code. The picture containing the two-dimensional code is obtained, and the image containing the two-dimensional code is acquired.

In this way, the method of real-time analysis of the information in the QR code can be used to ensure the information in the two-dimensional code.

Example 7

The device of the embodiment has a communication function such as surfing the Internet, making a call, and sending an email, and the two-dimensional code in the video signal includes communication contact information such as a website address, a telephone number, an email address, and the like, and the device can directly read from the two-dimensional code. The communication contact information is communicated. As shown in FIG. 12, based on the addition of the two-dimensional code reading unit U54 in the fifth embodiment, a further increase is made:

The communication contact information detecting unit U750 is configured to detect whether there is communication contact information in the information read from the two-dimensional code identification;

In the prior art, communication contact information such as identifying a telephone number has been realized in related products, for example, a mobile phone can recognize a telephone number, a web address, an e-mail address, and the like.

The communication unit U751 is configured to perform, according to the type of the communication contact information read out from the two-dimensional code by the two-dimensional code reading unit U54, when there is communication contact information in the information read from the two-dimensional code identification Communication;

Communication here includes logging in to the webpage, making a call, sending a text message, sending an email, etc. The communication contact information includes a website address, a telephone number, an email address, and the like. And according to the type of communication contact information To perform the corresponding type of communication, the communication is performed according to the communication contact information, for example, making a call or sending a text message according to the phone number, logging in to the webpage according to the website address, and sending an email according to the email address. In the prior art, identifying the kind of such information has already been realized in related products, for example, the mobile phone can recognize a phone number, a web address, an e-mail address, and the like.

Sometimes the QR code may contain both a phone number and a web address and an e-mail address. As shown in the dotted box in Figure 12, you can add:

The communication selection prompting unit U752 is configured to prompt the user to select a type of communication;

The foregoing communication unit U751 is specifically configured to: perform corresponding type communication according to the communication type information of the corresponding type in the acquired two-dimensional code according to the type of communication selected by the user;

In addition, the respective technologies, systems, devices, methods, and technical features respectively described in the above embodiments may be combined to form other modules and methods without departing from the spirit and principles of the present invention. The devices, the methods, the devices, the systems and the techniques described in the embodiments of the present invention are all within the scope of the present invention.

It will be apparent to those skilled in the art that the various units or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device for execution by the computing device. Alternatively, they may be fabricated into individual circuit modules, or a plurality of units or steps thereof may be fabricated as a single circuit module. Thus, the invention is not limited to any specific combination of hardware and software.

The above are only preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Any modifications, equivalents, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

Rights request

1. A method for obtaining a two-dimensional code in a video signal, comprising:

Obtaining a video signal containing a two-dimensional code;

Obtaining an image of the video signal that includes a two-dimensional code;

The method according to claim 1, wherein the acquiring the image of the video signal that includes the two-dimensional code comprises:

And capturing a picture of the video signal that includes the two-dimensional code, and acquiring the image that includes the two-dimensional code.

The method according to claim 2, further comprising: after the capturing the picture of the two-dimensional code in the video signal,

Detecting whether the sharpness of the image containing the two-dimensional code reaches a preset threshold; if the sharpness reaches a preset threshold, performing image recognition on the image including the two-dimensional code, and extracting two of the images a dimension code; if the resolution is lower than a preset threshold, performing the step of capturing a picture containing the two-dimensional code.

The method according to claim 1, wherein before the acquiring the image of the two-dimensional code in the video signal, the method further includes:

Detecting whether the video signal includes a two-dimensional code stream;

The acquiring the image that includes the two-dimensional code in the video signal is specifically:

If the video signal includes a two-dimensional code stream, the image corresponding to the two-dimensional code stream is extracted.

The method according to claim 4, further comprising: after detecting whether the video signal includes a two-dimensional code stream,

If the video signal includes a two-dimensional code stream, the prompt information is generated, and the prompt information prompts the user that the video signal has a two-dimensional code;

Before the extracting the image corresponding to the two-dimensional code stream, the method further includes:

Receiving an extraction instruction input by the user according to the prompt information; The extracting the image corresponding to the two-dimensional code stream is: extracting an image corresponding to the two-dimensional code stream according to the extraction instruction.

The method according to any one of claims 1 to 5, after the extracting the two-dimensional code in the image containing the two-dimensional code, further comprising: reading the two-dimensional code Information.

The method according to claim 2, wherein after the image recognition is performed on the captured image, and the two-dimensional code is extracted, the method further includes:

Reading the information in the two-dimensional code;

If the reading fails, the step of intercepting the picture containing the two-dimensional code in the video signal is performed.

The method according to claim 6, wherein after the reading the information in the two-dimensional code, the method further comprises:

Detecting whether there is communication contact information in the information read from the two-dimensional code; if there is communication contact information in the information read from the two-dimensional code, according to the two-dimensional The type of communication contact information read in the code is communicated in a corresponding type.

The method according to claim 8, wherein before the performing the corresponding type of communication according to the type of the communication contact information read from the two-dimensional code, the method further includes:

Prompting the user to select the type of communication;

The corresponding type of communication is performed according to the type of communication contact information read out from the two-dimensional code, specifically:

According to the type of communication selected by the user, the corresponding type of communication is performed based on the corresponding type of communication contact information in the two-dimensional code read from the two-dimensional code.

10. A video playback device for acquiring a two-dimensional code in a video signal, comprising:

1 1. The device according to claim 10, characterized in that: The image acquiring unit is specifically configured to intercept a picture that includes a two-dimensional code in the video signal, and acquire the image that includes the two-dimensional code.

The device according to claim 11, wherein the image obtaining unit comprises: an intercepting unit, configured to intercept a picture of the video signal that includes a two-dimensional code;

a sharpness detecting unit, configured to detect a sharpness of a picture intercepted by the intercepting unit; a determining unit, wherein a sharpness of a picture taken by the intercepting unit detected by the sharpness detecting unit is lower than a preset threshold And causing the intercepting unit to intercept the picture of the video signal that includes the two-dimensional code again; when the resolution of the picture captured by the intercepting unit detected by the sharpness detecting unit is not lower than a preset threshold, The screen intercepted by the intercepting unit is used as the image including the two-dimensional code.

The device according to claim 10, further comprising:

a two-dimensional code detecting unit, configured to detect whether there is a two-dimensional code code stream in the video signal; the two-dimensional code extracting unit is specifically configured to: when the video signal includes a two-dimensional code code stream, extract the second The image corresponding to the dimension code stream.

14. The device according to claim 13, further comprising:

a two-dimensional code prompting unit, configured to: when the two-dimensional code detecting unit detects that the two-dimensional code stream is in the video signal, generate prompt information, and prompt the user that the video signal has a two-dimensional code;

The extraction instruction receiving unit is configured to receive an extraction instruction input by the user according to the prompt information. The two-dimensional code extraction unit is specifically configured to extract an image corresponding to the two-dimensional code code stream according to the extraction instruction.

The device according to any one of claims 10 to 14, further comprising: a two-dimensional code reading unit, configured to read information in the two-dimensional code extracted by the two-dimensional code extracting unit .

The device according to claim 11, further comprising:

a two-dimensional code reading unit, configured to read information in the two-dimensional code extracted by the two-dimensional code extracting unit;

The video screenshot unit is further configured to: when the two-dimensional code reading unit does not read the two-dimensional When the information in the code is used, the picture containing the two-dimensional code in the video signal is intercepted again, and the image containing the two-dimensional code is acquired.

The device according to claim 15, further comprising:

a communication contact information detecting unit, configured to detect whether communication information is read by the two-dimensional code reading unit from the information read by the two-dimensional code;

The communication unit is configured to perform communication of a corresponding type according to the type of the communication contact information when there is communication contact information in the information read out from the two-dimensional code identification.

The device according to claim 17, further comprising:

a communication selection prompting unit, configured to prompt the user to select a type of communication;

The communication unit is specifically configured to perform, according to the communication type selected by the user, the corresponding type of communication according to the corresponding type of communication contact information in the acquired two-dimensional code.