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Image encoding and decoding device, image encoding and decoding method

A technology of image encoding and image decoding, which is applied in the field of image encoding and decoding equipment, image encoding and decoding, and can solve problems such as unexpectable encoding efficiency

Active Publication Date: 2019-09-24
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, like the merge mode, by selecting a block whose motion information can be used as it is located near the encoding target block in time / space, and encoding an index indicating the position of the block, no improvement in encoding efficiency can be expected.

Method used

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  • Image encoding and decoding device, image encoding and decoding method
  • Image encoding and decoding device, image encoding and decoding method
  • Image encoding and decoding device, image encoding and decoding method

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no. 1 example

[0059] will refer to Figure 1-10 The first embodiment will be described. figure 1 is a block diagram showing the structure of an image encoding device. The structure of the image coding apparatus in the second embodiment described later and the following embodiments is also the same as figure 1 have the same structure. exist figure 1 In, reference numeral 101 denotes an input unit for inputting image data (hereinafter simply referred to as "input unit 101"). Reference numeral 102 denotes a band setting unit, wherein the band setting unit 102 is configured to determine the size, position, etc. of bands within the input image according to the characteristics of the input image and predetermined timing, and to set the Stripe type.

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Abstract

In the case where the encoding mode used to encode the encoding target block is the first encoding mode, the vector representing the spatial relationship between the encoding target block and at least one block spatially located on the periphery of the encoding target block The index is encoded, and in the case where the encoding mode used to encode the encoding target block is the second encoding mode, the representation shows the encoding target block and at least one block that is spatially located on the periphery of the encoding target block. A vector of a spatial relationship and an index of a vector associated with a block in a picture other than the picture to be coded are coded.

Description

technical field [0001] The present invention relates to coding technology and decoding technology for video. More particularly, the present invention relates to a technique for dividing an image into a plurality of blocks, and encoding a slice including the blocks obtained by the division in units of the plurality of blocks obtained by the division and decode. Background technique [0002] In recent years, activities for international standardization of a high-efficiency encoding method serving as a successor to H.264 / MPEG-4 AVC (hereinafter referred to as "H.264") have started. For this reason, JCT-VC (JointCollaborative Team on Video Coding, Video Coding Joint Collaboration Group) has been established between ISO / IEC and ITU-T. JCT-VC is continuing the standardization of High Efficiency Video Coding (hereinafter referred to as "HEVC"). ITU-T was approved as H.265 encoding format in April 2013. With regard to the standardization of HEVC, research continues on the additi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/52H04N19/593H04N19/70
CPCH04N19/70H04N19/593H04N19/52H04N19/176H04N19/182H04N19/557
Inventor 前田充志摩真悟
Owner CANON KK