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Device and method for coding a video content in the form of a scalable stream

A technology of video content and stream form, applied in the direction of digital video signal modification, TV, pulse modulation TV signal transmission, etc., can solve the problems of encoding performance impact and so on

Inactive Publication Date: 2012-07-18
INTERDIGITAL VC HLDG INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fact that some pictures of the enhancement layer cannot be coded by inter-layer prediction has a negative impact on the coding performance

Method used

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  • Device and method for coding a video content in the form of a scalable stream
  • Device and method for coding a video content in the form of a scalable stream
  • Device and method for coding a video content in the form of a scalable stream

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Embodiment Construction

[0027] The present invention relates to a method and apparatus for encoding video content in the form of a time-scaled stream. The content is represented by a first group of interlaced pictures and a second group of progressive pictures, that is, the first group of interlaced pictures is formed by an interlaced first field and a second field, and the images of each second group of progressive pictures are related to the first The field times of an interlaced picture group coincide, ie have the same time stamp. The pictures of said first interlaced group of pictures, called bottom layer pictures, are coded in the form of bottom layers, and the pictures of said second progressive group of pictures, called enhancement layer pictures, are coded in the form of enhancement layers.

[0028] The following will refer to Figure 4 with Image 6 The first embodiment of the present invention is described, wherein there is a first group of M / 2 interlaced pictures, ie M fields, and a secon...

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Abstract

The invention relates to a method of coding a video content in the form of a temporally scalable stream. This content is represented by a first group of interlaced pictures formed by a first field interlaced with a second field and by a second group of progressive pictures, each picture of the second group coinciding with a field of the first group. The method comprises the following steps: - coding the fields of the first group on M temporal levels according to a first predefined coding order, with M an integer strictly greater than 1, such that the second field of a low resolution picture is coded immediately after the first field, and - coding the pictures of the second group of pictures on M temporal levels in a second predefined coding order. According to an essential characteristic of the invention, the second coding order equals the first coding order.

Description

technical field [0001] The present invention relates generally to the field of encoding video content in the form of temporally hierarchical streams. In particular, the present invention relates to apparatus and methods for encoding video content in the form of a temporally hierarchical stream, wherein said video content consists of a first group of interlaced pictures and a second group of progressive pictures (a second group of progressive pictures) indicates that the interlaced picture is formed of interlaced (interlaced) first field and second field. Background technique [0002] Multi-layer coding methods are suitable for coding video content in hierarchical streams of coded data. Scalability refers to the ability to scale information so that it can be encoded at several resolutions and / or quality and / or time-frequency levels. The data stream produced by this type of encoding method is generally divided into several layers, specifically a base layer and one or more en...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/26H04N7/46H04N7/50
CPCH04N19/00781H04N19/00721H04N19/00321H04N7/26047H04N7/50H04N19/00054H04N19/00757H04N7/462H04N7/465H04N7/26218H04N19/00266H04N7/26297H04N7/26271H04N19/00224H04N7/26351H04N19/172H04N19/61H04N19/114H04N19/16H04N19/187H04N19/31H04N19/59H04N19/577H04N19/112H04N19/30
Inventor 爱德华·弗朗索瓦樊尚·博特罗克里斯托夫·舍望斯热罗姆·维耶龙
Owner INTERDIGITAL VC HLDG INC