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HEVC fast inter-frame coding method based on multi-level classification

An inter-frame coding and multi-level technology, applied in the field of video coding, can solve the problems of high complexity of HEVC video coding, achieve the effect of reducing complexity, reducing complexity, and simplifying the selection process

Active Publication Date: 2019-07-23
HANGZHOU DIANZI UNIV
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Problems solved by technology

[0004] The purpose of the present invention is to address the shortcomings of the high complexity of existing HEVC video coding, and propose a HEVC fast inter-frame coding method based on multi-level classification, which can reduce the coding complexity while ensuring the coding quality

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  • HEVC fast inter-frame coding method based on multi-level classification
  • HEVC fast inter-frame coding method based on multi-level classification
  • HEVC fast inter-frame coding method based on multi-level classification

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Embodiment Construction

[0134] The present invention will be further described below in conjunction with the accompanying drawings and implementation examples.

[0135] Such as Figure 16 As shown, a HEVC fast inter-frame coding method based on multi-level classification uses the HM16.9 version of HEVC video coding, and uses the inter-frame coding configuration file encoder_lowdelay_P_main.cfg that comes with HM16.9. Here, a CU block with a depth of 0 is taken as an example.

[0136] The present invention mainly uses the CU-level classification tree, the PU-level classification tree and the TU-level classification tree to realize HEVC fast inter-frame coding. PU selection method and TU partition method based on TU deep classification tree.

[0137] (1) The specific steps of the fast CU division method based on the CU depth classification tree are:

[0138] Step (1), generating time-domain CU feature sample set

[0139] The characteristics that perform temporal CU depth selection are as follows: ...

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Abstract

The invention discloses an HEVC fast inter-frame coding method based on multi-level classification. The HEVC fast inter-frame coding method realizes HEVC fast inter-frame coding by applying a CU hierarchical classification tree, a PU hierarchical classification tree and a TU hierarchical classification tree; the method comprises a fast CU division method based on a CU depth classification tree, afast PU selection method based on an inter-frame mode classification tree and a TU division method based on a TU depth classification tree. The space-time similarity of the CU depth, the PU mode and the TU depth in the HEVC coding process is utilized, the complexity of CU division is reduced, the selection process of the inter-frame prediction mode is simplified, and meanwhile, the complexity of TU division is reduced by utilizing the transformation coefficient characteristics of the TU.

Description

technical field [0001] The invention belongs to the technical field of video coding, and in particular relates to a low-complexity video fast inter-frame coding method. Background technique [0002] In recent years, with the emergence of a large number of high-definition and even ultra-high-definition videos, the development of existing storage technology and network bandwidth is far from satisfying the effective storage and transmission of ultra-high-definition videos at this stage. Therefore, the technological innovation and development of video compression coding Never stopped. In order to meet the transmission and storage requirements of high-definition or even ultra-high-definition video, the video coding expert group under the International Telecommunication Union Communication Standardization Organization and the dynamic image expert group under the International Electrotechnical Commission established a video coding joint expert group to study and formulate a new gen...

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Application Information

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IPC IPC(8): H04N19/503H04N19/119H04N19/96H04N19/147H04N19/14H04N19/30H04N19/103
CPCH04N19/503H04N19/119H04N19/96H04N19/147H04N19/14H04N19/30H04N19/103
Inventor 陆宇黄旭东黄晓峰周洋殷海兵
Owner HANGZHOU DIANZI UNIV
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