Video encoding device, video encoding method, and video encoding program

A video coding and coding technology, applied in the field of video coding, can solve the problems of limited motion exploration range and image quality degradation, and achieve the effect of suppressing the increase of code amount and the amount of calculation.

Active Publication Date: 2017-08-04
NIPPON TELEGRAPH & TELEPHONE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] However, in Patent Document 1, there is a possibility that image quality may deteriorate due to limiting the motion search range without considering the amount of information in the motion vector.

Method used

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  • Video encoding device, video encoding method, and video encoding program
  • Video encoding device, video encoding method, and video encoding program

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Embodiment Construction

[0038]Hereinafter, a video encoding method, a video encoding device, and a video encoding program according to one embodiment of the present invention will be described with reference to the drawings. figure 1 It is a block diagram showing the configuration of this embodiment. In this figure, reference numeral 100 is an encoding unit that encodes video. The encoding process in the encoding unit 100 is not only the information exchange of the area determination unit 102, the motion vector memory 103, and the encoding mode determination unit 114, but also the current Some MPEG-2, H.264 and other video encoding devices are the same. Additionally, in reference to figure 1 When describing the configuration of the encoding unit 100 , the conventionally known functions and configurations of the encoding unit 100 will be briefly described as long as they are not directly related to the description of the present invention.

[0039] The input video signal stored in the frame memory 1...

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Abstract

A video encoding device that uses intra-coding and inter-coding with motion compensation for an input video signal, including: a determination unit that determines whether an input video signal to be encoded is a still area or accompanied by slight motion The area is still an area accompanied by normal motion; the first encoding part performs inter-coding of the motion vector (0, 0) on the area determined by the determination part to be a static area; Performing motion search and inter-encoding on the area determined by the determination unit as an area with slight motion; and the third encoding unit performs motion search and inter-encoding on the area determined by the determination unit as an area with normal motion within the normal search range. coding.

Description

technical field [0001] The present invention relates to a video encoding technique for improving the image quality of an encoder, and more particularly to a video encoding device, a video encoding method, and a video encoding program that suppress the amount of computation in motion search (motion search) and encoding mode selection. [0002] this application claims priority based on Japanese Patent Application No. 2011-051354 for which it applied in Japan on March 9, 2011, The content is used here. Background technique [0003] In video coding represented by H.264 / AVC (ISO / IEC 14496-10 "MPEG-4 Part 10 Advanced Video Coding"), the utilization space is adaptively switched and used according to the properties of the image to be coded Compression efficiency is improved by intra coding in which information within a frame is coded using correlation in a direction, and inter coding in which information between frames is coded using correlation in a time direction. Using motion co...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): H04N19/139H04N19/176H04N19/103H04N19/137H04N19/57H04N19/517
CPCH04N19/103H04N19/137H04N19/139H04N19/176H04N19/517H04N19/57H04N19/50H04N19/17
Inventor小野尚纪清水淳北原正树京地清介
OwnerNIPPON TELEGRAPH & TELEPHONE CORP