Video code rate control method and device, electronic equipment and storage medium

A code rate control and video technology, applied in the direction of digital video signal modification, electrical components, image communication, etc., can solve the problem that the code rate cannot be effectively reduced, and achieve the effect of reducing the code rate

Active Publication Date: 2021-06-04
ZHEJIANG UNIVIEW TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a video code rate control method, device, electronic equipment and storage medium to solve the problem of processing video images of multi-sensor monitoring equipment in the prior art The technical problems that cannot effectively reduce the encoding rate

Method used

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  • Video code rate control method and device, electronic equipment and storage medium
  • Video code rate control method and device, electronic equipment and storage medium
  • Video code rate control method and device, electronic equipment and storage medium

Examples

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Embodiment 1

[0025] figure 1 It is a flow chart of the video bit rate control method provided in Embodiment 1 of the present invention. This embodiment is applicable to the case of encoding video pictures collected by a multi-purpose splicing device, and the method can be executed by a video bit rate control device. The device can be implemented in the form of software and / or hardware, and can be integrated on electronic equipment, such as multi-purpose splicing equipment.

[0026] Such as figure 1 As shown, the video code rate control method specifically includes:

[0027] S101. Acquire sub-image frames captured by each image sensor and attribute information of each image sensor.

[0028] In the embodiment of the present invention, the multi-purpose splicing device includes a plurality of image sensors for real-time acquisition of image frames, so it is necessary to obtain the sub-image frames collected by each image sensor and the attribute information of each image sensor in real time...

Embodiment 2

[0035] figure 2 It is a schematic flow chart of a video bit rate control method in the second implementation of the present invention. This embodiment is optimized on the basis of the above-mentioned embodiments. Refer to figure 2 , the method specifically includes:

[0036] S201. Obtain sub-image frames captured by each image sensor and attribute information of each image sensor.

[0037] S202. Perform motion detection or feature detection on each sub-image frame respectively, and extract motion information or feature information.

[0038] Optionally, motion detection can be performed based on the frame difference method. Specifically, the difference image is obtained by subtracting the corresponding pixel values ​​of adjacent frame images, and then the difference image is binarized. When the pixel value change is less than a predetermined threshold, it can be considered as a background pixel; if the pixel value of the image area changes greatly, it can be considered that...

Embodiment 3

[0054] image 3 It is a schematic structural diagram of a video bit rate control device in Embodiment 3 of the present invention. The device is configured in a multi-purpose splicing device, and the multi-purpose splicing device includes a plurality of image sensors for collecting image frames. Such as image 3 As shown, the device includes:

[0055] The collection module 301 is used to obtain the sub-image pictures collected by each image sensor and the attribute information of each image sensor;

[0056] The parameter determining module 302 is used to determine the encoding parameters corresponding to each image sensor according to the attribute information of each image sensor, and correspondingly mark the encoding parameters in the sub-image frames collected by each image sensor;

[0057] The coding module 303 is used to splice each sub-image frame into a complete image frame, perform intra-frame coding on the start frame of the complete image, and perform independent co...

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Abstract

The embodiment of the invention discloses a video code rate control method and device, electronic equipment and a storage medium. The method comprises the following steps: acquiring sub-image pictures acquired by each image sensor and attribute information of each image sensor; according to the attribute information of each image sensor, determining a coding parameter corresponding to each image sensor, and correspondingly marking the coding parameter in a sub-image picture collected by each image sensor; splicing the sub-image pictures into a complete image picture, carrying out intra-frame coding on a starting frame of the complete image picture, and independently coding other frames according to each sub-image picture and the corresponding coding parameter. According to the embodiment of the invention, each sub-picture forming the spliced picture is independently coded according to the corresponding coding parameter, namely each sub-picture is coded at the corresponding minimum effective code rate, so that the whole video picture is prevented from being coded at a fixed code rate, and the code rate of the spliced picture is effectively reduced.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of monitoring, and in particular, to a video code rate control method, device, electronic equipment, and storage medium. Background technique [0002] With the rapid development of various technologies in the monitoring field, people are pursuing a higher-quality visual experience, which has comprehensively improved the clarity of images, from 1080P to 4K and even 8K or even higher. For video, the higher the resolution of the video, the greater the required bit rate, while the network transmission bandwidth is constant, the excessive bit rate will have an impact on the network bandwidth, and sometimes it will be caused by the overlapping of bit rates. The sharp increase in the bit rate will also have an impact on the network bandwidth. Therefore, how to reduce the bit rate has become an urgent problem to be solved. [0003] At present, the existing solutions only encode the video c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/177H04N19/159H04N19/115H04N19/147
CPCH04N19/177H04N19/159H04N19/115H04N19/147
Inventor 吴辉
Owner ZHEJIANG UNIVIEW TECH CO LTD
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