CN104079946B - 可变成块效应大小和偏移检测 - Google Patents

可变成块效应大小和偏移检测 Download PDF

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Publication number
CN104079946B
CN104079946B CN201410113062.3A CN201410113062A CN104079946B CN 104079946 B CN104079946 B CN 104079946B CN 201410113062 A CN201410113062 A CN 201410113062A CN 104079946 B CN104079946 B CN 104079946B
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China
Prior art keywords
edge difference
edge
difference
block
content
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Expired - Fee Related
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CN201410113062.3A
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English (en)
Chinese (zh)
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CN104079946A (zh
Inventor
V.阿拉姆塞蒂
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Giant Plan Co Ltd
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Tektronix Inc
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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/10—Segmentation; Edge detection
    • G06T7/13—Edge detection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/86—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving reduction of coding artifacts, e.g. of blockiness
    • H04N19/865—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving reduction of coding artifacts, e.g. of blockiness with detection of the former encoding block subdivision in decompressed video

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Image Analysis (AREA)
CN201410113062.3A 2013-03-26 2014-03-25 可变成块效应大小和偏移检测 Expired - Fee Related CN104079946B (zh)

Applications Claiming Priority (2)

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IN1146MU2013 IN2013MU01146A (cg-RX-API-DMAC10.html) 2013-03-26 2013-03-26
IN1146/MUM/2013 2013-03-26

Publications (2)

Publication Number Publication Date
CN104079946A CN104079946A (zh) 2014-10-01
CN104079946B true CN104079946B (zh) 2019-05-21

Family

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Country Link
US (1) US9569856B2 (cg-RX-API-DMAC10.html)
EP (1) EP2785066B1 (cg-RX-API-DMAC10.html)
JP (1) JP6494167B2 (cg-RX-API-DMAC10.html)
CN (1) CN104079946B (cg-RX-API-DMAC10.html)
IN (1) IN2013MU01146A (cg-RX-API-DMAC10.html)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017177332A1 (en) 2016-04-13 2017-10-19 Cosentino Nicholas Bruce Alexander Systems and methods for collecting digital forensic evidence
US10740409B2 (en) 2016-05-20 2020-08-11 Magnet Forensics Inc. Systems and methods for graphical exploration of forensic data
WO2017197526A1 (en) 2016-05-20 2017-11-23 Roman Czeslaw Kordasiewicz Systems and methods for graphical exploration of forensic data
US12238138B2 (en) * 2021-05-20 2025-02-25 F.A.C.C.T. Antifraud Llc Method and device for clustering phishing web resources based on visual content image
NL2031940B1 (en) 2021-05-20 2023-06-13 Group Ib Ltd Method and device for clustering phishing web resources based on visual content image

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1131873A (zh) * 1995-03-20 1996-09-25 大宇电子株式会社 用于编码具有静止目标的图像信号的装置
CN1419787A (zh) * 2000-01-28 2003-05-21 高通股份有限公司 基于质量的图像压缩
WO2007020572A1 (en) * 2005-08-18 2007-02-22 Koninklijke Philips Electronics N.V. Image processor comprising a block artifacts detector

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Publication number Priority date Publication date Assignee Title
US6418242B1 (en) * 1998-11-18 2002-07-09 Tektronix, Inc. Efficient detection of error blocks in a DCT-based compressed video sequence
EP1129579A1 (en) 1999-09-14 2001-09-05 Koninklijke Philips Electronics N.V. Method and device for identifying block artifacts in digital video pictures
US6437821B1 (en) * 1999-12-22 2002-08-20 Tektronix, Inc. Harmonic measurement of blockiness in video signals
US6643410B1 (en) 2000-06-29 2003-11-04 Eastman Kodak Company Method of determining the extent of blocking artifacts in a digital image
US8077774B1 (en) 2008-04-03 2011-12-13 Volicon, Inc. Automated monitoring of digital video image quality
JP5197414B2 (ja) * 2009-02-02 2013-05-15 オリンパス株式会社 画像処理装置及び画像処理方法
US8452117B2 (en) * 2009-02-10 2013-05-28 Silicon Image, Inc. Block noise detection and filtering
US8363978B2 (en) * 2009-03-03 2013-01-29 Samsung Electronics Co., Ltd. System and method for block edge location with varying block sizes and offsets in compressed digital video
US8363974B2 (en) * 2009-07-21 2013-01-29 Qualcomm Incorporated Block artifact reducer
TWI391878B (zh) * 2009-12-01 2013-04-01 Mstar Semiconductor Inc 區塊邊界偵測方法及區塊邊界偵測裝置
WO2011080925A1 (ja) * 2009-12-28 2011-07-07 パナソニック株式会社 画像符号化装置および方法
JP2011172101A (ja) * 2010-02-19 2011-09-01 Panasonic Corp 画像符号化方法、画像符号化装置及び撮像システム
US8824826B2 (en) * 2011-02-24 2014-09-02 Foveon, Inc. Methods for performing fast detail-preserving image filtering
US9426482B2 (en) * 2011-06-28 2016-08-23 Samsung Electronics Co., Ltd. Video encoding method using offset adjustments according to pixel classification and apparatus therefor, video decoding method and apparatus therefor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1131873A (zh) * 1995-03-20 1996-09-25 大宇电子株式会社 用于编码具有静止目标的图像信号的装置
CN1419787A (zh) * 2000-01-28 2003-05-21 高通股份有限公司 基于质量的图像压缩
WO2007020572A1 (en) * 2005-08-18 2007-02-22 Koninklijke Philips Electronics N.V. Image processor comprising a block artifacts detector

Also Published As

Publication number Publication date
JP6494167B2 (ja) 2019-04-03
IN2013MU01146A (cg-RX-API-DMAC10.html) 2015-04-24
US20140294316A1 (en) 2014-10-02
EP2785066A1 (en) 2014-10-01
JP2014192896A (ja) 2014-10-06
CN104079946A (zh) 2014-10-01
US9569856B2 (en) 2017-02-14
EP2785066B1 (en) 2018-10-17

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Effective date of registration: 20190910

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Patentee after: Giant Plan Co., Ltd.

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Patentee before: Tektronix Inc.

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20190521

Termination date: 20210325