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A high-efficiency video coding method based on visual attention priority

A high-efficiency video coding and visual attention technology, applied in the field of video processing, can solve the problems of lack of, indiscriminate importance differences, etc.

Active Publication Date: 2018-01-19
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing international video coding standards, such as H.265 / HEVC, do not distinguish the visual significance of different areas or objects in the image when compressing video data. Therefore, in bit rate allocation or In the process of computing resource allocation, uniform allocation standards are adopted, and there is no consideration of "different from person to person"

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  • A high-efficiency video coding method based on visual attention priority
  • A high-efficiency video coding method based on visual attention priority
  • A high-efficiency video coding method based on visual attention priority

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Embodiment Construction

[0024] The present invention is described in detail below in conjunction with accompanying drawing and specific embodiment:

[0025] figure 1 It is a flowchart of an efficient video coding method based on visual attention priority; in order to reasonably integrate human visual features into the video coding process, it is an important prerequisite to accurately obtain human visual attention areas. However, when the traditional region of interest acquisition scheme uses the HVS mechanism, it often needs to establish a complex visual model, which is not conducive to its use in the actual application environment with low computational overhead and high real-time performance. Therefore, in order to speed up the process of obtaining human visual attention areas and labeling attention priority, realize the fine control of coding transformation coefficients, and improve the subjective visual experience of reconstructed video at the same bit rate, the present invention discloses a vis...

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Abstract

The invention discloses a high-efficiency video coding method based on visual attention priority. The method revolves around two parts: visual attention priority labeling based on motion-texture features and high-quality coding optimization based on visual attention priority. First, the motion classification of the coding object is used as the dominant visual attention feature, and the texture information of the coding object is used as the auxiliary visual attention feature to mark the attention degree and determine the priority of the coding unit; then, the adaptive coding transformation coefficient is adjusted to realize the Differential encoding of areas with different degrees of attention ensures better subjective visual quality at the same bit rate.

Description

technical field [0001] The invention belongs to the technical field of video processing, and relates to a high-efficiency video coding method based on visual attention priority. Background technique [0002] Today, with the deepening of technological globalization, the accelerated popularization of video information has triggered the explosive growth of video data, and at the same time promoted the continuous improvement of video coding technology marked by high efficiency. In this context, video coding technology based on the characteristics of human visual perception came into being. [0003] The human visual system (Human Visual System, HVS) can fully perceive the brightness, color, motion, texture and other visual information in the video scene, and is one of the important means for the human eye to obtain and process external information. At the same time, since the human eye is the main receiver of video data, a proper combination of the human visual system and video ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/136H04N19/139H04N19/18H04N19/64
Inventor 刘鹏宇吴玥颖高原贾克斌
Owner BEIJING UNIV OF TECH