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Method for encoding a digital video image

A technology of digital video and coding method, which is applied in the field of digital video coding, can solve problems such as digital video image quality loss, and achieve the effect of no quality loss

Inactive Publication Date: 2015-03-18
瓦迪姆·瓦塔里维奇·亚罗申柯
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, encodings that involve partitioning frames of a source video sequence into rectangular regions or blocks have some disadvantages
One of these disadvantages is the loss of quality of the digital video image

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The following table gives examples of video frame aspect ratio values ​​in coded digital video for a video frame size (1920x1080) of a full HD display device:

[0024] Table 1

[0025] resolution

Relationship to Full HD

1920x1080

1 Full HD resolution

1280x720

1 / 2 full HD resolution

[0026] 1024x576

1 / 3.52 full HD resolution

960x540

1 / 4 full HD resolution

640x360

1 / 9 full HD resolution

480x270

1 / 16 full HD resolution

320x180

1 / 36 full HD resolution

240x135

1 / 64 full HD resolution

[0027] It is possible to implement the claimed technique if, in the encoded digital video, the pixel shape remains square and the video frame aspect ratio of the encoded digital video picture corresponds to the video frame size (1920 x 1080) of a full HD display device As a result, it allows:

[0028] - Display of the best quality encoded digital video on any device type that...

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PUM

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Abstract

A method for encoding a digital video image, in which an initial digital video image is taken in any format and having any resolution exceeding that required. During the encoding stage, the initial digital video image is segmented into a plurality of video frames and each video frame of the plurality of video frames is segmented into a plurality of units composed of pixels. An encoded digital video image is formed from a sequence of video frames in the following way. Each subsequent frame is added to the encoded video image if said frame is entirely different from the previous video frame. If each subsequent video frame repeats the previous video frame, then instead of said subsequent video frame being added to the formed digital video image, a command is added to repeat the previous video frame. If a video frame is not entirely different, then a command is added to the formed encoded video image to repeat the previous frame taking into account the differing units, wherein the video is encoded in such a way that the pixels in the encoded digital video image are square in shape, regardless of the extent of compression, and the encoded video image is saved to at least one media server.

Description

technical field [0001] The present invention relates to a method of digital video coding which can be used for efficient coding of video data in video file formats as well as streaming and broadcast video formats. Background technique [0002] Digital images such as videos, TV images, still images, or images generated using a VCR or PC contain pixels along horizontal and vertical lines. An image frame usually contains tens of thousands of pixels. Each pixel typically contains information about brightness and color. Unencrypted digital images contain a lot of information. Many encoding methods such as JPEG, MPEG and H.263 standards have been studied with the aim of reducing the amount of data to be transferred. A typical video encoder partitions frames of a source video sequence into rectangular regions or blocks encoded in intra or inter mode. Blocks are coded independently using some type of transform coding such as the Discrete Cosine Transform (DCT) method. [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/119
CPCH04N19/137H04N19/132H04N19/172H04N19/503H04N19/59H04N19/61H04N19/176H04N19/119H04N19/50H04N19/136
Inventor 瓦迪姆·瓦塔里维奇·亚罗申柯
Owner 瓦迪姆·瓦塔里维奇·亚罗申柯
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