WO2005124664A2 - Image clean-up and pre-coding - Google Patents

Image clean-up and pre-coding Download PDF

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Publication number
WO2005124664A2
WO2005124664A2 PCT/US2005/021099 US2005021099W WO2005124664A2 WO 2005124664 A2 WO2005124664 A2 WO 2005124664A2 US 2005021099 W US2005021099 W US 2005021099W WO 2005124664 A2 WO2005124664 A2 WO 2005124664A2
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WO
WIPO (PCT)
Prior art keywords
filter kernel
image
pixels
pixel
digital image
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2005/021099
Other languages
English (en)
French (fr)
Other versions
WO2005124664A3 (en
Inventor
Charles K. Chui
Jianzhong Wang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Precoad Inc
Original Assignee
Precoad Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Precoad Inc filed Critical Precoad Inc
Priority to HK08102263.8A priority Critical patent/HK1111494B/xx
Priority to JP2007527809A priority patent/JP5007228B2/ja
Publication of WO2005124664A2 publication Critical patent/WO2005124664A2/en
Publication of WO2005124664A3 publication Critical patent/WO2005124664A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/70—Denoising; Smoothing
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/20—Image enhancement or restoration using local operators
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10016—Video; Image sequence
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10024—Color image
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20172—Image enhancement details
    • G06T2207/20192—Edge enhancement; Edge preservation

Definitions

  • FIG. 13 is a flow diagram illustrating an embodiment 1300 of a process of constructing and using a filter kernel for a CDF. The first-order difference operation is applied to a set of pixels 1310 with a center pixel located on an image edge (within a image tile or array) to produce elements 1311.
  • P frame 1608 and subtracted 1614 from a filtered I frame 1610 (which was illustrated in Figure 15).
  • a DCT 1618 and quantization 1620 are applied to a resulting filtered B/P frame 1616.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Image Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Picture Signal Circuits (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
PCT/US2005/021099 2004-06-14 2005-06-14 Image clean-up and pre-coding Ceased WO2005124664A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
HK08102263.8A HK1111494B (en) 2004-06-14 2005-06-14 Method and system of filtering a digital image, and digital image processor
JP2007527809A JP5007228B2 (ja) 2004-06-14 2005-06-14 画像クリーンアップおよび前置符号化

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US57984004P 2004-06-14 2004-06-14
US60/579,840 2004-06-14

Publications (2)

Publication Number Publication Date
WO2005124664A2 true WO2005124664A2 (en) 2005-12-29
WO2005124664A3 WO2005124664A3 (en) 2006-10-26

Family

ID=35510414

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/021099 Ceased WO2005124664A2 (en) 2004-06-14 2005-06-14 Image clean-up and pre-coding

Country Status (4)

Country Link
US (1) US7570832B2 (enExample)
JP (1) JP5007228B2 (enExample)
CN (1) CN100524346C (enExample)
WO (1) WO2005124664A2 (enExample)

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Cited By (3)

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Publication number Priority date Publication date Assignee Title
WO2008065089A3 (en) * 2006-11-27 2008-09-04 Thomson Licensing Video pre-processing device and method, motion estimation device and method
KR101377780B1 (ko) 2006-11-27 2014-03-26 톰슨 라이센싱 비디오 전처리 장치 및 방법, 움직임 추정 장치 및 방법
CN101669142B (zh) * 2007-04-24 2013-10-16 帝欧希数字光学科技（欧洲）有限公司 用于调整将核应用于信号的效果以在信号上取得预期效果的技术

Also Published As

Publication number Publication date
HK1111494A1 (zh) 2008-08-08
CN101027681A (zh) 2007-08-29
US7570832B2 (en) 2009-08-04
JP5007228B2 (ja) 2012-08-22
CN100524346C (zh) 2009-08-05
US20050276504A1 (en) 2005-12-15
JP2008503192A (ja) 2008-01-31
WO2005124664A3 (en) 2006-10-26

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