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Device for coding, method for coding, system for decoding, method for decoding video data

一种视频数据、视频编码的技术，应用在编码标准领域

Inactive Publication Date: 2013-01-23
INTERDIGITAL CE PATENT HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • Device for coding, method for coding, system for decoding, method for decoding video data
  • Device for coding, method for coding, system for decoding, method for decoding video data
  • Device for coding, method for coding, system for decoding, method for decoding video data

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Embodiment Construction

[0036] The following description is based on data encoding conforming to the H.264 standard. The exemplary embodiment is not limited to this encoding. The present invention pertains essentially to any type of encoding in which information is inserted into a stream so that the information can be used more easily later.

[0037] figure 1 The structure of a stream encoded according to a preferred embodiment of the present invention is shown.

[0038] Encodes an image in a decomposed manner. Each image is broken down into sections, which are best understood as slices. The decomposition into slices is decided during encoding. This decomposition into slices is performed by the user of the encoding device, in particular by the broadcaster of the program.

[0039] Each decoding device independently determines the type of decomposition it uses. Therefore, no information about the decomposition used by the decoder is known outside the decoder. It is therefore impossible for other...

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Abstract

The present invention relates to a video data encoding device and method. The apparatus comprises means for encoding each image in slices of the image, wherein each slice is encoded independently of the other slices. According to the invention, the device comprises means for inserting at least one message (SEI) into the data stream, wherein the message indicates a structure related to the decomposition of the image into slices. The present invention also relates to a video data decoding system and decoding method, said video data being coded in slices, each slice being coded independently of other slices. According to the invention, the decoding system comprises: means for analyzing video data in order to determine a decomposition of the data into slices; means for decoding video data slice by slice; for reconstructing a plurality of video data after decoding in order to reconstruct A device for decoding video data. Applied to the H.264 standard.

Description

technical field [0001] The present invention relates to a video data coding device and method, and a decoding method and system. [0002] More specifically, the present invention relates to coding standards in which coded images are transmitted with a certain number of information units so that these images can be easily decoded. Background technique [0003] Compression standards such as MPEG-2 and more recently H.264 transmit encoded pictures in groups of pictures (GOPs), which also include information describing the structure of the group of pictures, which is then used by a decoder to decode the picture. [0004] The H.264 standard transmits a group of pictures in a slice structure. A slice can contain an entire image or a portion of an image. The encoder is used to decompose the image into slices (mostly based on a fixed configuration), but the decoder in principle never knows the slice structure of the image and thus discovers it during the decoding process. [0005...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/236H04N21/426H04N21/434H04N21/6332H04N21/6336H04N21/654H04N21/845H04N7/26H04N7/24H04N7/52
CPCH04N21/23614H04N21/426H04N21/4348H04N21/6332H04N21/6336H04N21/654H04N21/8451H04N19/174H04N19/70H04N21/236H04N19/46
Inventor 布鲁诺·加尼耶弗雷德里克·帕基耶西尔万·法布雷
Owner INTERDIGITAL CE PATENT HLDG
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