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Video encoding method and device based on territorial classification encoding

A region classification and video coding technology, applied in the field of video transmission, can solve problems such as large noise, reduced compression ratio, color change, etc., to achieve the effect of improving perception quality and reducing image noise

Active Publication Date: 2017-01-04
GLOBAL TONE COMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the influence of lighting, camera sampling, etc., compared with the original slide image, the captured slide area has greater noise, and the color will also change. For example, the solid color area on the slide is captured by the camera. It is not a pure color, which leads to information distortion and a reduction in the compression ratio after video encoding

Method used

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  • Video encoding method and device based on territorial classification encoding
  • Video encoding method and device based on territorial classification encoding
  • Video encoding method and device based on territorial classification encoding

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0019] Embodiment 1, a method of video coding based on region classification coding, such as image 3 shown, including:

[0020] Step 1, identifying each content area in the video screen;

[0021] In step 2, each area is preprocessed respectively to reduce image noise.

[0022] The technical solution of the present invention realizes a video coding method and device based on region classification coding, and uses different methods to preprocess different regions of the image, which can reduce image noise, thereby highlighting the content that the user is interested in, and improving the user's perception quality.

Embodiment 2

[0023] Embodiment 2, a method for video coding based on region classification coding, such as Figure 4 Shown, on the basis of embodiment one, include:

[0024] Further, in the first step, each content area is divided into: a face area, a computer display area, an active area, and a combination of inactive areas.

[0025] In the computer display area, face area, active area and inactive area, the focus of human eyes' perception is different. The face area is the most concerned. For active areas, the human eye is better able to focus on its movement. For the inactive area, the human eye pays more attention to its details. Therefore, the computer display area, face area, active area and inactive area should be treated differently in the preprocessing link.

[0026] Through pre-labeling or image analysis technology, the face area, computer display area, active area and inactive area in the video screen are identified. Before the traditional encoding process, different methods...

Embodiment 3

[0040] Embodiment 3, a device for video coding based on region classification coding, such as Figure 6 shown, including:

[0041] The recognition unit recognizes each content area in the video screen;

[0042] The preprocessing unit performs preprocessing on each area respectively to reduce image noise.

[0043] The technical solution of the present invention realizes a video coding method and device based on region classification coding, and uses different methods to preprocess different regions of the image, which can reduce image noise, thereby highlighting the content that the user is interested in, and improving the user's perception quality.

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Abstract

The invention discloses a video encoding method and device based on territorial classification encoding, and relates to the technical field of video transmission. The technical problem of how to carry out more effective transmission at a fixed code rate is solved. The technical scheme comprises: step 1: identifying content areas in a video image; and step 2: preprocessing the areas to reduce the noise of the image.

Description

technical field [0001] The present invention relates to the technical field of video transmission, in particular to a video coding method and device based on region classification coding. Background technique [0002] Usually, the video conferencing host is connected to a high-definition camera to take pictures of the venue, such as figure 1 As shown, video encoding and transmission are performed. However, due to the influence of lighting, camera sampling, etc., compared with the original slide image, the captured slide area has greater noise, and the color will also change. For example, if the solid color area on the slide is captured by the camera, it will It is not a pure color, which leads to information distortion and a reduction in the compression ratio after video encoding. How to perform more effective transmission at a fixed bit rate has become an urgent technical problem to be solved. Contents of the invention [0003] The invention aims to solve the technical...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/15H04N19/17H04N19/85
CPCH04N7/15H04N19/17H04N19/85
Inventor 程国艮王语
Owner GLOBAL TONE COMM TECH
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