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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: 2011-11-23
HANGZHOU HIKVISION DIGITAL TECH
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  • Description
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  • 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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  • Image layered coding method and device

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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, determine its category and priority respectively. 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 coding method. The method comprises the following steps of: respectively determining the category and the priority for each acquired field image, wherein the images include I field images and P field images in category; determining a reference image of each P field image according to the priority; and coding each field image according to the determined result. The invention also discloses an image layered coding device. By applying the method and device provided by the invention, the realization complexity can be reduced.

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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IPC IPC(8): H04N7/26H04N19/105H04N19/114H04N19/30
Inventor 俞海贾永华
Owner HANGZHOU HIKVISION DIGITAL TECH
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