A crowdsourcing video encoding method and device

A video coding and coding technology, applied in the fields of digital video signal modification, image communication, electrical components, etc., can solve the problems of multi-computational complexity, unable to provide complete background information, unable to further improve coding efficiency, etc., to achieve high coding The effect of efficiency

Active Publication Date: 2022-05-10
ZHEJIANG UNIV
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Problems solved by technology

However, this method can only obtain knowledge images containing key backgrounds, but cannot provide complete information about the background (for example, some backgrounds are occluded or moved out of the lens), nor can it provide key foreground information, which makes the coding efficiency not possible. further improvement
At the same time, scene clustering will bring too much computational complexity in long-term video processing, which will greatly increase the encoding time

Method used

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  • A crowdsourcing video encoding method and device
  • A crowdsourcing video encoding method and device
  • A crowdsourcing video encoding method and device

Examples

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Embodiment

[0071] Example description:

[0072] according to Figure 4 As shown, the knowledge image provides reference information for the encoding of the video segment to be encoded. Therefore, the amount of reference information that the knowledge image can provide is the key to determining the encoding efficiency of the video segment to be encoded. When the knowledge image provides a large amount of effective reference information, the inter-frame prediction of the image to be coded using the knowledge image as a reference image will get less residual error, thereby obtaining a lower bit rate and less distortion; when the knowledge image provides When there is little effective reference information, the image to be encoded cannot obtain effective reference information from the knowledge image, and can only obtain reference information from the original short-term reference image or long-term reference image using inter-frame prediction, or can only use intra-frame prediction to obtai...

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Abstract

The invention discloses a video encoding method and device for crowdsourcing. The method uses crowdsourcing to obtain a set of knowledge image sets from candidate image sets, updates the knowledge image sets through multiple iterations, and compares the costs consumed by different knowledge image sets. The cost and the coding benefits provided are obtained to obtain the knowledge image set that can achieve the highest coding efficiency for the video to be coded. The beneficial effect of the present invention is that the optimal knowledge image set can be obtained so that video coding based on the knowledge base can obtain higher coding efficiency than the prior art.

Description

technical field [0001] The present invention relates to the technical field of image or video compression, and more specifically, to a method for selecting a reference image. Background technique [0002] 1. Traditional video coding scheme [0003] In the existing video sequence processing, in order to make the encoded video sequence support the random access function, the video sequence is divided into multiple segments with random access function (referred to as random access segments), such as figure 1 As shown, a video sequence includes at least one random access segment, each random access segment corresponds to a display period and includes a random access image and a plurality of non-random access images, each image has its own display time to describe the image being displayed The time displayed or played. Pictures in a random access segment can be intra-coded or coded using inter-frame prediction with reference to other pictures in the random access segment, where...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/172H04N19/187H04N19/30H04N19/593H04N19/503
CPCH04N19/172H04N19/187H04N19/30H04N19/593H04N19/503
Inventor 虞露于化龙
Owner ZHEJIANG UNIV
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