Efficient video encoding method based on vision attention priority

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

Active Publication Date: 2016-01-13
BEIJING UNIV OF TECH
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  • 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.

Method used

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  • Efficient video encoding method based on vision attention priority
  • Efficient video encoding method based on vision attention priority
  • Efficient video encoding method based on vision 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 an efficient video encoding method based on a vision attention priority. The method is centered on two contents including a vision attention priority annotation based on a movement-texture feature and a high-quality encoding optimization based on the vision attention priority. The method comprises the following steps: firstly, performing the attention annotation and priority judgment on an encoding unit when the movement grading of an encoding object is acted as a leading vision attention feature and texture information of the encoding object is acted as an auxiliary vision attention feature; and secondly, performing self-adaptive encoding conversion coefficient regulation to realize difference encoding aiming at regions in different attentions, and guaranteeing more optimal subjective vision quality under the same code 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 (HVS) can fully perceive various visual information such as brightness, color, motion, and texture in video scenes, and is one of the important means for the human eye to acquire 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 coding technology...

Claims

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Application Information

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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
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