Scalable object representation method and device in video codec

An object representation, codec technology, applied in the direction of digital video signal modification, image communication, electrical components, etc., can solve the problems of not containing objects, detection and recognition disadvantage, etc.

Active Publication Date: 2017-07-21
PEKING UNIV
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Problems solved by technology

[0002] Existing video coding methods are not well combined with object detection, usually it is necessary to decode the acquired video code stream, and object detection and recognition can only be performed on the decoded image
At the same time, the video code stream usually does not contain information such as the position and shape of the object, which is not conducive to fast and accurate object detection and recognition

Method used

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  • Scalable object representation method and device in video codec
  • Scalable object representation method and device in video codec
  • Scalable object representation method and device in video codec

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Embodiment Construction

[0020] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] The invention proposes a scalable object representation method in a video codec. In the encoding process, the method determines the object attribute of the coding unit according to the division structure of the coding unit and the object information, so as to encode the object attribute into the bit stream of the output video; in the decoding process, the object attribute is decoded, thereby obtaining the , the location object information.

[0022] Such as figure 1 As shown, the encoding process of a scalable object representation method in a video codec includes:

[0023] Coding object attribute step S1, when encoding the original video image, it is judged whether coding units of different sizes belong to the object, and...

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Abstract

The present invention proposes a scalable object representation method in a video codec. In the encoding process, the method determines the object attributes of the coding unit according to the division structure of the coding unit and the object information, so as to encode the object attributes into the output video In the decoding process, the object attributes are decoded to obtain object information including shape and position. Using this method, the present invention proposes scalable object representation means in video codecs. For a maximum coding unit, it is recursively divided according to the mode decision; for the coding unit that terminates the division, judge whether it belongs to the object: if it does not belong to the object, enter the identification coding module as its coding object index identification; if it belongs to the object, enter the object representation precision decision module.

Description

technical field [0001] The invention relates to a scalable object representation method in a video codec, which belongs to the video object representation technology in the technical field of digital media processing. Background technique [0002] Existing video coding methods are not well combined with object detection, usually the acquired video code stream needs to be decoded, and objects can be detected and recognized only on the decoded image. At the same time, the video code stream usually does not contain information such as the position and shape of the object, which is unfavorable for fast and accurate object detection and recognition. Contents of the invention [0003] The invention proposes a scalable object representation method in a video codec. The feature of this method is that in the encoding process, the object attribute of the coding unit is determined according to the division structure of the coding unit and the object information, so that the object a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/20H04N19/136
Inventor 黄铁军董思维田永鸿王耀威
Owner PEKING UNIV
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