Title:
ハイブリッドビデオ圧縮の量子化雑音除去用の非線形ループ内デノイズフィルタ
Document Type and Number:
Japanese Patent JP4920599
Kind Code:
B2
Abstract:
A method and apparatus is disclosed herein for using an in-the-loop denoising filter for quantization noise removal for video compression. In one embodiment, the video encoder comprises a transform coder to apply a transform to a residual frame representing a difference between a current frame and a first prediction, the transform coder outputting a coded differential frame as an output of the video encoder; a transform decoder to generate a reconstructed residual frame in response to the coded differential frame; a first adder to create a reconstructed frame by adding the reconstructed residual frame to the first prediction; a non-linear denoising filter to filter the reconstructed frame by deriving expectations and performing denoising operations based on the expectations; and a prediction module to generate predictions, including the first prediction, based on previously decoded frames.
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Inventors:
Gull Lewes, Onur Gee.
Application Number:
JP2007551412A
Publication Date:
April 18, 2012
Filing Date:
January 13, 2006
Export Citation:
Assignee:
NTT DoCoMo, Inc.
International Classes:
H04N7/26
Domestic Patent References:
| JP11187400A | ||||
| JP10224790A | ||||
| JP10023411A | ||||
| JP9205652A | ||||
| JP7131757A | ||||
| JP7015631A | ||||
| JP6311506A |
Foreign References:
| WO2003047267A1 | ||||
| WO2003003749A1 |
Attorney, Agent or Firm:
Yoshiki Hasegawa
Shiro Terasaki
Takashi Okiyama
Kenji Fukaishi
Shiro Terasaki
Takashi Okiyama
Kenji Fukaishi