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Image layered coding method and device

A layered coding and image technology, applied in the field of video processing, can solve the problem of high implementation complexity, and achieve the effect of reducing implementation complexity and facilitating popularization and promotion.

Active Publication Date: 2013-05-15
HANGZHOU HIKVISION DIGITAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the above method also has certain problems in practical applications, that is, due to the need to generate multiple code streams, the implementation complexity is relatively high

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Embodiment Construction

[0030] Aiming at the problems existing in the prior art, an improved image layered coding scheme is proposed in the present invention, which can reduce the implementation complexity.

[0031] In order to make the technical solution of the present invention clearer and clearer, the solution of the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0032] figure 2 It is a flowchart of an embodiment of an image layered encoding method according to the present invention. Such as figure 2 shown, including the following steps:

[0033] Step 21: For each acquired field image, respectively determine its category and priority, the category includes I field image and P field image, and determine the reference image of each P field image according to the priority.

[0034] If the video acquisition device adopts a progressive acquisition method when acquiring images, firstly, each frame image acquired is interlacedl...

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Abstract

The invention discloses an image layered encoding method, which includes: for each acquired field image, respectively determine its category and priority, the category includes I field image and P field image, and determine each field image according to the priority The reference image of the P field image; each field image is encoded according to the determination result. The invention also discloses an image layered encoding device. The implementation complexity can be reduced by applying the method and device of the present invention.

Description

technical field [0001] The present invention relates to video processing technology, in particular to an image layered encoding method and device. Background technique [0002] With the development of video capture and processing technology, the resolution used in the video surveillance system is getting larger and larger, especially with the application of high-resolution high-definition equipment such as 1080P / 1080I, the compression bit rate is getting higher and higher, which gives Image storage poses a significant burden. In addition, when the compressed image is transmitted, it is hoped that the amount of transmitted data can be adapted to the size of the transmission bandwidth. For example, when the transmission bandwidth is large, the transmission of high-resolution, high frame When the bandwidth is medium, images with medium resolution, medium frame rate, and medium bit rate are transmitted; when the transmission bandwidth is small, images with small resolution, low...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/26H04N19/105H04N19/114H04N19/30
Inventor 俞海贾永华
Owner HANGZHOU HIKVISION DIGITAL TECH