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Video image coding method and device

A video image and encoding technology, which is applied in the field of video image encoding, can solve problems such as affecting perception, low encoding efficiency, and poor image quality, and achieve the effect of improving efficiency and free switching

Active Publication Date: 2016-09-21
TENCENT TECH (SHENZHEN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional resolution adjustment needs to restart the encoder, and then encode the I frame to switch, and the encoding efficiency of the I frame is extremely low, which will lead to extremely poor image quality of the frame and affect the look and feel.

Method used

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  • Video image coding method and device
  • Video image coding method and device

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Embodiment Construction

[0033] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0034] Such as figure 1 As shown, in one embodiment, the video image encoding method can be applied as figure 1 In the shown application environment, in this application environment, the encoding end 102 and the decoding end 104 are connected through a network. The encoding end 102 is used to receive the video image to be encoded, and identify the scene complexity of the video image, and then determine the resolution corresponding to the scene complexity of the video image. When it is detected that the current resolution needs to be adjusted, the coding The encoding header information of the curr...

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Abstract

The invention discloses a video image coding method, and the method comprises the steps: receiving a to-be-coded video image, recognizing the scene complexity of the video image, determining a resolution corresponding to the scene complexity of the video image, switching the resolution of a current coder to the resolution corresponding to the scene complexity of the video image through switching the coding head information of the coder when the resolution of the current coder needs to be adjusted, and coding the video image according to the resolution after switching. The coder does not need to restart in the process, so the free switching of resolution can be achieved through the coding of P frame or B frame with no need of the coding of I frame, and the coding efficiency is greatly improved. In addition, the invention also proposes a video image coding device.

Description

technical field [0001] The present invention relates to the field of video processing, in particular to a video image coding method and device. Background technique [0002] With the development of the Internet, watching videos has become more and more popular, and people have higher and higher requirements for the fluency and clarity of videos. But in general, the bit rate of the video is fixed, so since the bit rate allocated to each frame is basically fixed, the picture quality is relatively good in static and small motion scenes, but if it suddenly enters a very violent Scenes with large and complex textures will lead to larger quantization parameters, resulting in poor image quality, and even serious mosaic phenomena. In addition, when the network bandwidth changes, such as when the network condition deteriorates, the bit rate allocated to each frame will also decrease, so that even if the video image is always in a still and small motion scene, the video will appear d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/573H04N19/577H04N19/59
CPCH04N19/573H04N19/577H04N19/59
Inventor 罗斌姬王浦林刘海军王诗涛
Owner TENCENT TECH (SHENZHEN) CO LTD
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