Granted Patent B2

US 12,477,176 · App. 18/029,477 · Granted Nov 18, 2025

Inventors: Yanhong Wu (Beijing, CN); Hao Fang (Beijing, CN); Yan Gao (Beijing, CN)

Assignee: Beijing BOE Technology Development Co., Ltd.

H04N21/442H04N21/44008

Abstract

Claims (51)

1 . A multimedia broadcast monitoring method, comprising:

generating a first verification image of a play plan by an image generation algorithm according to a pre-generated first identification image and configuration information of a display terminal; wherein the first identification image is configured to represent first identity authentication information; and the first identity authentication information is configured to represent the play plan in a play schedule;

generating data to be displayed according to the play plan, a received multimedia file corresponding to the play plan, and the first verification image that are received, so as to allow the display terminal to perform display in response to the data to be displayed;

receiving a display image sent by the display terminal, analyzing the display image, and after a second identification image is derived from the display image through analysis, acquiring second identity authentication information corresponding to the second identification image when it is determined that the second identification image is consistent with the first identification image; and

comparing the second identity authentication information with the first identity authentication information, and determining whether the display image of the display terminal is correct according to a comparison result,

wherein the play plan comprises playback window information and play order information of each multimedia file in the display terminal; and

generating the data to be displayed according to the play plan, the multimedia file corresponding to the play plan, and the first verification image that are received comprises:

generating the data to be displayed according to display region information and display order information of each multimedia file in the display terminal, the multimedia file corresponding to the play plan, and the first verification image, so as to allow the display terminal to perform display according to the playback window information and the play order information of each multimedia file in the display terminal in response to the data to be displayed.

2 . The multimedia broadcast monitoring method of claim 1 , wherein generating the first verification image of the play plan by the image generation algorithm according to the pre-generated first identification image and the configuration information of the display terminal comprises:

generating the first identification image according to the first identity authentication information;

processing the first identification image according to the number of pixels corresponding to a specific area of a pre-generated transparent image to obtain a first target identification image;

encoding display information of all pixels of the first target identification image to obtain first encoded data; and

replacing display data of corresponding pixels in the specific area of the transparent image with the first encoded data to generate the first verification image.

3 . The multimedia broadcast monitoring method of claim 2 , after generating the first identification image according to the first identity authentication information, further comprising:

generating the transparent image according to resolution information of the display terminal; wherein resolution of the transparent image is the same as resolution of the display terminal.

4 . The multimedia broadcast monitoring method of claim 2 , wherein the transparent image has a central area and an edge area surrounding the central area; and the specific area is the edge area.

5 . The multimedia broadcast monitoring method of claim 2 , wherein when the number of the pixels in the specific area is greater than the number of pixels in the first target identification image, replacing the display data of the corresponding pixels in the specific area of the transparent image with the first encoded data to generate the first verification image comprises:

replacing display data of other pixels than the corresponding pixels of the first target identification image in the specific area of the transparent image with second encoded data while the display data of the corresponding pixels in the specific area of the transparent image are replaced with the first encoded data, so as to obtain the first verification image.

6 . The multimedia broadcast monitoring method of claim 2 , wherein a step of analyzing the display image to determine whether the display image of the display terminal is correct comprises:

analyzing the display image to obtain an identification image actually displayed by the display terminal;

processing the identification image actually displayed, and obtaining the second identification image according to resolution information of the first identification image;

comparing the second identification image with the first identification image, and determining that the display image is wrong if the second identification image is not consistent with the first identification image;

acquiring the second identity authentication information according to the second identification image if the second identification image is consistent with the first identification image; and

comparing the second identity authentication information with the first identity authentication information to determine whether the display image is correct.

7 . The multimedia broadcast monitoring method of claim 6 , wherein processing the identification image actually displayed, and obtaining the second identification image according to the resolution information of the first identification image comprises:

processing the identification image actually displayed according to the number of the pixels corresponding to the specific area of the transparent image to obtain a second target identification image;

determining whether target encoded data obtained by encoding display information of all pixels in the second target identification image exist;

decoding the target encoded data to obtain decoded data if it is determined that the target encoded data obtained by encoding the display information of all pixels in the second target identification image exist; and

generating the second identification image according to the resolution information of the first identification image and the decoded data.

8 . The multimedia broadcast monitoring method of claim 7 , wherein encoding the display information of all pixels of the first target identification image to obtain the first encoded data comprises:

sequentially encoding the display information of all pixels of the first target identification image in a first preset order to obtain the first encoded data; and

processing the identification image actually displayed according to the number of the pixels corresponding to the specific area of the transparent image to obtain the second target identification image comprises:

sequentially assembling display data of all pixels in the identification image actually displayed in the first preset order according to the number of the pixels corresponding to the specific area of the transparent image, so as to obtain the second target identification image.

9 . The multimedia broadcast monitoring method of claim 6 , wherein replacing the display data of the corresponding pixels in the specific area of the transparent image with the first encoded data to generate the first verification image comprises:

sequentially replacing the display data of the corresponding pixels in the specific area of the transparent image with the first encoded data in a preset order to generate the first verification image; and

analyzing the display image to obtain the identification image actually displayed by the display terminal comprises:

sequentially extracting the display data of the corresponding pixels in the specific area of the display image in the preset order, and obtaining the identification image actually displayed by the display terminal according to the extracted display data.

10 . The multimedia broadcast monitoring method of claim 1 , wherein while the display image is analyzed, the method further comprises:

when it is determined that the display image is not correct, sending a control instruction to cancel display to the display terminal, so as to allow the display terminal to cancel display of the display image, and generate an alarm message.

11 . The multimedia broadcast monitoring method of claim 1 , further comprising:

encoding parameter information in the play plan, and generating the first identity authentication information.

12 . A multimedia broadcast monitoring system, comprising a verification image generator, a playback controller, and an analysis processor, wherein

the verification image generator is configured to generate a first verification image of a play plan by an image generation algorithm according to a pre-generated first identification image and configuration information of a display terminal; the first identification image is configured to represent first identity authentication information; and the first identity authentication information is configured to represent the play plan in a play schedule;

the playback controller is configured to generate data to be displayed according to the play plan, a multimedia file corresponding to the play plan, and the first verification image that are received for the display terminal to display; and

the analysis processor is configured to analyze a display image captured by the display terminal at a preset frequency, acquire, after a second identification image is obtained through analysis, second identity authentication information corresponding to the second identification image if it is determined that the second identification image is consistent with the first identification image, compare the second identity authentication information with the first identity authentication information, and determine whether display of the display terminal is correct according to a comparison result,

wherein the play plan comprises playback window information and play order information of each multimedia file in the display terminal; and

the playback controller is configured to:

generate the data to be displayed according to display region information and display order information of each multimedia file in the display terminal, the multimedia file corresponding to the play plan, and the first verification image, so as to allow the display terminal to perform display according to the playback window information and the play order information of each multimedia file in the display terminal in response to the data to be displayed.

13 . A computer device, comprising: a processor, a storage device, and a bus, wherein the storage device stores machine-readable instructions executable by the processor, and when the computer device operates, the processor communicates with the storage device through the bus, and the machine-readable instructions perform steps of the multimedia broadcast monitoring method of claim 1 when being executed by the processor.

14 . A non-transitory computer-readable storage medium having a computer program stored thereon, wherein the computer program performs steps of the multimedia broadcast monitoring method of claim 1 when being executed by a processor.

15 . An electronic device, comprising the multimedia broadcast monitoring system of claim 12 and a display terminal.

Assignments (2)

Continuity (1)

References Cited (13)