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A video encoding and decoding method and device
Inactive Publication Date: 2018-12-21
CHINA SECURITY & FIRE TECH GRP +1
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[0004] Embodiments of the present invention provide a video encoding and decoding method and device, which are used to solve the current problem that due to the large layered blockiness of video content, it is impossible to flexibly support the hierarchical representation of objects in the video encoding and decoding process and the video image The outline description is not accurate enough and other problems
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Embodiment 1
[0033] Such as figure 1 As shown, it is a schematicflowchart of the video coding method described in Embodiment 1 of the present invention, and the video coding method may include the following steps:
[0034] Step 101: For any original video image in the sequence of original video images to be encoded, determine the pixel attributes of each pixel in the original video image, and generate an image corresponding to the original video image according to the determined pixel attributes of each pixel. A corresponding pixel attribute image; wherein, for any pixel, the pixel attribute of the pixel is represented by a pixel attribute identification value corresponding to the pixel attribute of the pixel and used to reflect the video content level corresponding to the pixel .
[0035] Specifically, in the technical solution described in the embodiment of the present invention, the pixel attributes may at least include any one or more of the following attribute information: scene att...
Embodiment 2
[0064] Such as figure 2 As shown, it is a schematicflow chart of the video decoding method described in Embodiment 2 of the present invention, and the video decoding method may include the following steps:
[0065] Step 201: Receive input original video image coded bit stream and pixel attribute image coded bit stream.
[0066] Wherein, the encoded bit stream of the original video image and the encoded bit stream of the pixel attribute image are respectively obtained after encoding the original video image to be encoded and the pixel attribute image corresponding to the original video image; the pixel attribute The image is generated according to the determined pixel attributes of each pixel in the original video image; wherein, for any pixel, the pixel attribute of the pixel is corresponding to the pixel attribute of the pixel and is used to reflect the The pixel attribute identification value of the video content level corresponding to the pixel is represented.
[0067] ...
Embodiment 3
[0080] Embodiment 3 of the present invention provides a video encoding device that can be used to implement the video encoding method described in Embodiment 1 of the present invention, as shown in FIG. 3(a), which is the video encoding device described in Embodiment 3 of the present invention The structural representation Figure 1 , the video encoding device may include an attribute determination module 31, an image generation module 32, an image encoding module 33, and an encoding output module 34, wherein:
[0081] The attribute determining module 31 can be used for determining the pixel attribute of each pixel in the original video image for any original video image in the original video image sequence to be encoded; wherein, for any pixel, the pixel attribute of the pixel It is represented by a pixel attribute identification value corresponding to the pixel attribute of the pixel and used to reflect the video content level corresponding to the pixel.
[0082] Specifical...
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Abstract
The invention discloses a method and a device for video coding and decoding. Because in the process of decoding the, layer division can be performed on all original video images to be coded from the pixel level, the technical scheme the invention discloses can more flexibly support the layer level expression during the video coding process and can improve the accuracy of couture description of the video image during the video coding process. Furthermore, the invention can incorporate the pixel attribute identification value for reflecting video content hierarchy corresponding to all pixels in the original video images in an output video bit stream in order to decode the original video image while decoding the pixel attribute identification information of all pixels and to extract the objects of different hierarchies according to the pixel attribute identification information of all pixels, and can more flexibly support the expression of the hierarchy of the object in the process of video decoding and can improve the accuracy of expressing the couture of the video image in the process of video decoding.
Description
technical field [0001] The present invention relates to the technical field of video encoding and decoding, in particular to a video encoding and decoding method and device. Background technique [0002] In recent years, with the wide application of video systems in various fields, various video coding optimization technologies are developing rapidly. Among them, the technology of optimizing video coding according to the subjective meaning of video has attracted more and more attention from the academic and industrial circles. This type of technology usually divides the picture into a background area and several foreground areas according to the subjective meaning of the video (foreground area, also known as ROI, Region Of Interest), that is, the area where the audience is more interested in the video picture subjectively. ), and by dividing the foreground and background areas, combined with coding technology to achieve the purpose of optimizing the video quality of the cor...
Claims
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Application Information
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