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Method and device for selecting coding mode in layered video coding

A coding mode and video coding technology, applied in the field of image processing, can solve problems such as reducing the speed of the encoder, achieve the effect of reducing the amount of calculation, reducing the number of bits, and ensuring the quality of image coding

Active Publication Date: 2010-10-27
HANGZHOU HIKVISION DIGITAL TECH
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Problems solved by technology

[0010] The coding mode selection method of the prior art method inevitably needs to calculate the performance description parameters of the intra-layer prediction mode and the inter-layer prediction mode, and then compare them. In this way, this calculation process will introduce additional computational complexity, thereby reducing the coding time. device speed

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  • Method and device for selecting coding mode in layered video coding

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Embodiment Construction

[0031] Embodiments of the present invention provide a method and device for selecting a coding mode in layered video coding.

[0032] In order to enable those skilled in the art to better understand the solution of the present invention, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and implementation manners.

[0033] For the mode selection in SVC, this application proposes a selection scheme of intra-layer or inter-layer motion information prediction mode, after the coding block of the current layer selects the intra-layer coding mode, quickly and effectively judge whether to select inter-layer motion information prediction mode, thereby reducing the complexity of inter-layer coding mode selection.

[0034] SVC is a scalable video coding standard that supports three scalability schemes: temporal scalability, spatial scalability, and quality scalability. This patent is suitable for spatial scal...

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Abstract

The invention relates to method and device for selecting a coding mode in layered video coding. The method comprises the following steps of: acquiring in-layer prediction mode motion information selected by an enhancement layer coding block; acquiring interlayer prediction mode motion information selected by the enhancement layer coding block on the basis of the in-layer prediction mode motion information; selecting a coding mode by judging whether the motion information of an in-layer mode is consistent with the prediction motion information of an interlayer mode or not; and coding by adopting the interlayer motion information prediction mode if the motion information of the in-layer mode is consistent with the prediction motion information of the interlayer mode or else coding by adopting the in-layer mode. The invention can be utilized to reduce the amount of calculation.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a method and device for selecting a coding mode in layered video coding. Background technique [0002] In the application of video technology, the implementation efficiency of the encoder has always been the focus of attention, especially for the monitoring application of real-time encoding, an efficient encoder has always been the pursuit of the goal. The current development trend is that the resolution of video images is getting higher and higher, and the number of video channels is increasing. It is required that the encoder not only handles standard definition, but also handles high definition; not only to realize one-way encoding, but also to realize multi-channel encoding. In this way, it is necessary to add a series of fast processing algorithms in the realization of the encoder. [0003] Scalable coding technology is actually a multi-layer coding technology and ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/26H04N7/32H04N19/12H04N19/30H04N19/50
Inventor 武晓阳俞海贾永华胡扬忠邬伟琪
Owner HANGZHOU HIKVISION DIGITAL TECH
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