Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Apparatus and method for video motion compensation with selectable interpolation filter

An interpolation filter and filter technology, applied in the field of video processing, can solve the problems of significant signaling overhead and achieve the effect of increasing signaling overhead and reducing size

Active Publication Date: 2018-04-17
HUAWEI TECH CO LTD
View PDF3 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The form of the adaptive filter and the need to transmit multiple filters for sub-pixel positions lead to significant signaling overhead for the adaptive interpolation filtering technique

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Apparatus and method for video motion compensation with selectable interpolation filter
  • Apparatus and method for video motion compensation with selectable interpolation filter
  • Apparatus and method for video motion compensation with selectable interpolation filter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0095] figure 2 A video encoder according to an embodiment of the present invention is shown, in particular a video encoder 200 for predictively encoding a video stream of a subsequent frame into an encoded video bit stream according to motion compensation. further, image 3 An interpolation filter of a video encoder according to an embodiment of the present invention is shown.

[0096] Video encoder 200 includes, inter alia, a frame buffer 207 and a prediction unit.

[0097] The frame buffer 207 is used for storing at least one reference frame or image of the video stream. The prediction unit 210 is configured to generate a prediction block of a current block of a current frame from a reference block of a reference frame according to a motion vector having fractional pixel resolution. The fractional pixel resolution defines an integer pixel position and a plurality of sub-pixel positions.

[0098] Further, the prediction unit 210 is configured to insert the reference blo...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention relates to a video coder for predictive coding a video stream of subsequent frames according to motion compensation into an encoded video bit stream, comprising a frame buffer (207) configured to store at least one reference frame of the video stream, a prediction unit (210) configured to generate a prediction block of a current block of a current frame from a reference blockof the reference frame according to a motion vector having fractional-pel resolution, said fractional-pel resolution defining an integer-pel position and fractional-pel positions. The prediction unit(210) is configured to interpolate the reference block according to the fractional-pel resolution via one of the at least three following interpolation filters: a blurring interpolation filter (302),a tap filter (303), and the tap filter (303) followed by a sharpening filter (311).

Description

technical field [0001] The present invention relates generally to the field of video processing, to video motion compensation apparatus, and in particular to video encoders and video decoders for supporting motion compensation for predicting frames in video. The invention also relates to an encoding method for encoding a video stream using motion compensation; and a decoding method for decoding a video stream using motion compensation. Finally, the invention relates to a computer program having a program code for carrying out such a method. Background technique [0002] In the field of video processing, especially in the field of hybrid video coding and compression, the use of inter- and intra-frame prediction and transform coding is known. These hybrid video coding techniques are used in known video compression standards such as H.261, H.263, MPEG-1, 2 and 4, H.264 / AVC or H.265 / HEVC. [0003] figure 1 A video encoder according to the prior art is shown. The video encode...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H04N19/50H04N19/82H04N19/523
CPCH04N19/82H04N19/523H04N19/117H04N19/176H04N19/86H04N19/51
Inventor 马克西姆·波里索维奇·瑟乔夫维克多·阿列克谢耶维奇·斯蒂平罗曼·伊戈列维奇·切尼亚克谢尔盖·尤利耶维奇·伊科宁
Owner HUAWEI TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com