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Multi-coding-point hybrid coding pipeline method and multi-coding-point hybrid coding pipeline device for video coding

A video coding and coding point technology, applied in the field of multi-coding point mixed coding pipeline method and its device, to achieve the effects of eliminating dependencies, improving compression quality, and avoiding pipeline waiting

Active Publication Date: 2016-01-06
SHENZHEN ZTE NETVIEW TECH
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] In order to solve the pipeline waiting problem caused by macroblock dependence in the prior art, improve the accuracy of coding mode discrimination, and improve the image quality of video coding at the same bit rate, the purpose of the embodiments of the present invention is to provide a video Coded multi-code point mixed coding pipeline method and its device

Method used

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  • Multi-coding-point hybrid coding pipeline method and multi-coding-point hybrid coding pipeline device for video coding
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  • Multi-coding-point hybrid coding pipeline method and multi-coding-point hybrid coding pipeline device for video coding

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Embodiment 1

[0060] Such as image 3 as well as Figure 4 As shown, a kind of multi-code point mixing pipeline method for video coding provided in this embodiment includes the following steps:

[0061] S10. Divide the image into at least two sub-images that can be coded in parallel;

[0062] Based on the factors of video code stream transmission, code stream error prevention and image parallel encoding, video codec standards such as MPEG4-part2, H.264 and H.265 support dividing an image into several sub-images that can be encoded in parallel, for example H.264 supports dividing a frame of image into multiple image slices (SLICE). Utilizing the feature that an image can be divided into sub-images that can be encoded in parallel, in an embodiment of the present invention, an image is divided into at least two sub-images that can be encoded in parallel according to at least one known method defined by known video codec standards , including but not limited to dividing an image into multipl...

Embodiment 2

[0086] Such as Figure 8 As shown, the present embodiment provides a multi-code point mixed coding pipelining method for video coding, including the following steps:

[0087] S30. Divide the image into at least two sub-images that can be encoded in parallel;

[0088] S40. Transfer the sub-images into at least two coded block containers after being grouped;

[0089] S50. Perform encoding of the basic unit of image encoding for each sub-image in the current encoding block container according to the configured pipeline encoding order, and after the sub-image encoding processing of the current encoding block container is completed, perform sub-image encoding for the next encoding block container Image coding processing until the sub-picture coding processing of all coded block containers is completed, wherein the pipeline coding sequence is configured to sequentially extract an uncoded picture coding basic unit from each sub-picture in a cyclic manner.

[0090] Specifically, the...

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Abstract

The invention discloses a multi-coding-point hybrid coding pipeline method and a multi-coding-point hybrid coding pipeline device for video coding. The method comprises the steps of dividing an image into at least two sub-images which can be coded parallelly; and carrying out coding on image coding basic units according to a configured pipeline coding sequence for the sub-images, wherein the pipeline coding sequence is configured to be that an un-coded image coding basic unit is sequentially extracted from each sub-image in a cyclic mode. According to the invention, the image is divided into a plurality of sub-images which can be coded parallelly, the time interval of adjacent image coding basic units in each sub-image is enabled to be lengthened in the pipeline through a multi-coding-point hybrid coding pipeline, thereby being capable of eliminating dependency between the adjacent image coding basic units, and avoiding problems of pipeline waiting and the like. by adopting the method and the device disclosed by the invention, pattern discrimination, motion vector estimation and the like are not required to be carried out by using an approximation method, thereby improving the accuracy of coding pattern discrimination, and improving the compression quality of the image at the same time.

Description

technical field [0001] The present invention relates to the field of video coding and decoding, in particular to a multi-coding point mixed coding pipelining method for video coding and a device thereof. Background technique [0002] With the rapid development of electronic information technology, the application of video is very extensive. With the development of image sensor and integrated circuit technology, video shooting has also spread rapidly from professional to public, including network video, network TV, cable digital TV, mobile phone camera, etc. In the process of processing these video data, video codec is an indispensable and important step. The current mainstream video codec standards are MPEG4-part2 and H.264, as well as H.265, which was formulated in 2013. These standards are all block-based hybrid coding frameworks. [0003] It is known that the calculation amount of video coding is very large, and ordinary processors are not suitable for video coding due t...

Claims

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Application Information

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IPC IPC(8): H04N19/174H04N19/436
Inventor 于培松
Owner SHENZHEN ZTE NETVIEW TECH
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