KR0171151B1 - 곡률 계산 기법을 이용한 이미지 윤곽 근사화 장치 - Google Patents
곡률 계산 기법을 이용한 이미지 윤곽 근사화 장치 Download PDFInfo
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- KR0171151B1 KR0171151B1 KR1019950005871A KR19950005871A KR0171151B1 KR 0171151 B1 KR0171151 B1 KR 0171151B1 KR 1019950005871 A KR1019950005871 A KR 1019950005871A KR 19950005871 A KR19950005871 A KR 19950005871A KR 0171151 B1 KR0171151 B1 KR 0171151B1
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- South Korea
- Prior art keywords
- contour image
- generating
- image data
- position information
- data
- Prior art date
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- 238000000034 method Methods 0.000 title description 16
- 238000004364 calculation method Methods 0.000 title description 5
- 230000001131 transforming effect Effects 0.000 claims description 2
- 238000005070 sampling Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 238000003786 synthesis reaction Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013144 data compression Methods 0.000 description 1
- 238000013139 quantization Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T3/00—Geometric image transformations in the plane of the image
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T9/00—Image coding
- G06T9/20—Contour coding, e.g. using detection of edges
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/40—Extraction of image or video features
- G06V10/46—Descriptors for shape, contour or point-related descriptors, e.g. scale invariant feature transform [SIFT] or bags of words [BoW]; Salient regional features
-
- 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
- H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Signal Processing (AREA)
- Image Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Compression Of Band Width Or Redundancy In Fax (AREA)
- Color Television Systems (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Image Analysis (AREA)
Abstract
Description
Claims (1)
- 윤곽 이미지 데이터의 입력 비디오 신호를 부호화하는 비디오 신호부호화 시스템용 장치로써, 상기 장치는: 상기 입력 윤곽 이미지 데이터에 대한 꼭지점들의 세트를 발생하는 수단과: 상기 꼭지점들의 세트에서 두 개의 인접 꼭지점들 사이에 균일하게 배열된 N개의 샘플 포인트들을 발생하며, 상기 두 개의 인접 꼭지점들에 대응하는 두 개의 위치 정보 데이터를 발생하는 샘플 포인트 발생 수단과: 상기 N개의 샘플 포인트들과 상기 각각의 샘플 포인트들에 대응하는 입력 윤곽 이미지 데이터상의 포인트들간의 거리들을 나타내는 제1에러신호들의 세트를 발생하는 제1에러 신호 발생 수단과: 상기 에러 신호들의 세트를 변환 계수들의 세트로 변환하고 변환된 계수들을 양자화하여 양자화된 변환 계수들의 세트로 부호화하는 수단과: 상기 양자화된 변환 계수들의 세트를 역양자화 그리고 역변환하여 재구성된 윤곽 신호들의 세트와 상기 두 개의 위치 정보 데이터들에 의거하여 재구성된 윤곽 이미지 데이터를 발생하는 수단과: 상기 입력 윤곽 이미지 데이터와 상기 재구성된 윤곽 이미지 데이터간의 편차를 나타내는 제2에러 신호들의 세트를 발생하는 제2에러발생 수단과: 상기 양자화된 변환 계수들의 세트와 상기 두 개의 위치 정보 데이터, 또는 상기 두 개의 위치 정보 데이터를, 상기 제2에러 신호들의 세트와 기설정된 임계값에 의거하여 선택적으로 발생하는 선택 수단과: 상기 입력 윤곽 이미지 데이터와 상기 두 개의 위치 정보 데이터에 의거하여 곡률 신호들의 세트를 발생하여 최소 곡률 신호를 나타내는 엑스트라 꼭지점 위치 정보 데이터를 발생하며, 상기 엑스트라 꼭지점 위치 정보 데이터와 상기 두 개의 취치 정보 데이터를 상기 샘플 포인트 발생 수단으로 제공하는 수단을 포함하는 윤곽이미지 근사화 장치.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950005871A KR0171151B1 (ko) | 1995-03-20 | 1995-03-20 | 곡률 계산 기법을 이용한 이미지 윤곽 근사화 장치 |
US08/520,204 US5774595A (en) | 1995-03-20 | 1995-08-28 | Contour approximation method for representing a contour of an object |
CN95116451A CN1129320C (zh) | 1995-03-20 | 1995-09-07 | 改进的用于表示目标轮廓的轮廓近似方法 |
JP23043995A JP3759980B2 (ja) | 1995-03-20 | 1995-09-07 | 輪郭近似方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950005871A KR0171151B1 (ko) | 1995-03-20 | 1995-03-20 | 곡률 계산 기법을 이용한 이미지 윤곽 근사화 장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR960036709A KR960036709A (ko) | 1996-10-28 |
KR0171151B1 true KR0171151B1 (ko) | 1999-03-20 |
Family
ID=19410203
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950005871A KR0171151B1 (ko) | 1995-03-20 | 1995-03-20 | 곡률 계산 기법을 이용한 이미지 윤곽 근사화 장치 |
Country Status (4)
Country | Link |
---|---|
US (1) | US5774595A (ko) |
JP (1) | JP3759980B2 (ko) |
KR (1) | KR0171151B1 (ko) |
CN (1) | CN1129320C (ko) |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1121122C (zh) * | 1996-10-25 | 2003-09-10 | 大宇电子株式会社 | 对视频信号中的目标轮廓图象进行编码的方法和设备 |
KR100212552B1 (ko) * | 1996-12-23 | 1999-08-02 | 전주범 | 이산적 사인 변환을 이용한 윤곽선 영상 신호 부호화 방법 및 그 장치 |
KR100239307B1 (ko) * | 1997-01-10 | 2000-01-15 | 전주범 | 윤곽선 영상 부호화기 |
KR100239309B1 (ko) * | 1997-01-15 | 2000-01-15 | 전주범 | 변형된 정점 부호화를 이용한 윤곽선 부호화 방법 및 그 장치 |
KR100239303B1 (ko) * | 1997-01-21 | 2000-01-15 | 전주범 | 윤곽선 영상의 초기정점 부호화 방법 |
US5912991A (en) * | 1997-02-07 | 1999-06-15 | Samsung Electronics Co., Ltd. | Contour encoding method using error bands |
KR100239308B1 (ko) * | 1997-02-18 | 2000-01-15 | 전주범 | 적응적 윤곽선 부호화 방법 및 그 장치 |
US5978510A (en) * | 1997-03-20 | 1999-11-02 | Hyundai Electronics Industries Co., Ltd. | Method and apparatus for predictively coding contour of video signal |
KR100295798B1 (ko) * | 1997-07-11 | 2001-08-07 | 전주범 | 스케일러빌리티를구현한이진현상신호부호화장치 |
US7388988B2 (en) * | 2002-01-14 | 2008-06-17 | Hewlett-Packard Development Company, L.P. | Systems and methods for processing boundary information of a graphical object |
JP4164286B2 (ja) * | 2002-04-25 | 2008-10-15 | キヤノン株式会社 | 図形の線分近似方法、該図形の線分近似方法を実現するためのプログラムおよび図形の線分近似装置 |
EP1524622A1 (en) * | 2003-10-17 | 2005-04-20 | Koninklijke Philips Electronics N.V. | Method and image processing device for analyzing an object contour image, method and image processing device for detecting an object, industrial vision apparatus, smart camera, image display, security system, and computer program product |
US7457472B2 (en) * | 2005-03-31 | 2008-11-25 | Euclid Discoveries, Llc | Apparatus and method for processing video data |
CA2575211C (en) * | 2004-07-30 | 2012-12-11 | Euclid Discoveries, Llc | Apparatus and method for processing video data |
US9743078B2 (en) | 2004-07-30 | 2017-08-22 | Euclid Discoveries, Llc | Standards-compliant model-based video encoding and decoding |
US8902971B2 (en) | 2004-07-30 | 2014-12-02 | Euclid Discoveries, Llc | Video compression repository and model reuse |
US9532069B2 (en) | 2004-07-30 | 2016-12-27 | Euclid Discoveries, Llc | Video compression repository and model reuse |
US7508990B2 (en) * | 2004-07-30 | 2009-03-24 | Euclid Discoveries, Llc | Apparatus and method for processing video data |
US7436981B2 (en) * | 2005-01-28 | 2008-10-14 | Euclid Discoveries, Llc | Apparatus and method for processing video data |
US9578345B2 (en) | 2005-03-31 | 2017-02-21 | Euclid Discoveries, Llc | Model-based video encoding and decoding |
US7457435B2 (en) | 2004-11-17 | 2008-11-25 | Euclid Discoveries, Llc | Apparatus and method for processing video data |
JP2008514136A (ja) * | 2004-09-21 | 2008-05-01 | ユークリッド・ディスカバリーズ・エルエルシー | ビデオデータを処理する装置および方法 |
CN101622874A (zh) * | 2007-01-23 | 2010-01-06 | 欧几里得发现有限责任公司 | 对象存档系统和方法 |
EP2106664A2 (en) * | 2007-01-23 | 2009-10-07 | Euclid Discoveries, LLC | Systems and methods for providing personal video services |
CA2676219C (en) * | 2007-01-23 | 2017-10-24 | Euclid Discoveries, Llc | Computer method and apparatus for processing image data |
US8116581B2 (en) * | 2007-06-28 | 2012-02-14 | Microsoft Corporation | Efficient image representation by edges and low-resolution signal |
JP4944007B2 (ja) * | 2007-12-21 | 2012-05-30 | 株式会社島精機製作所 | 輪郭抽出装置と輪郭抽出方法及び輪郭抽出プログラム |
EP2345256B1 (en) | 2008-10-07 | 2018-03-14 | Euclid Discoveries, LLC | Feature-based video compression |
WO2015138008A1 (en) | 2014-03-10 | 2015-09-17 | Euclid Discoveries, Llc | Continuous block tracking for temporal prediction in video encoding |
US10097851B2 (en) | 2014-03-10 | 2018-10-09 | Euclid Discoveries, Llc | Perceptual optimization for model-based video encoding |
US10091507B2 (en) | 2014-03-10 | 2018-10-02 | Euclid Discoveries, Llc | Perceptual optimization for model-based video encoding |
CN105678326B (zh) * | 2015-12-31 | 2019-12-10 | 华南理工大学 | 一种基于曲率的二维目标轮廓的编码方法 |
Family Cites Families (7)
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JPH0613213B2 (ja) * | 1982-02-04 | 1994-02-23 | 株式会社写研 | 文字画像データ圧縮用ブロック設定方法 |
KR900001696B1 (ko) * | 1984-11-09 | 1990-03-19 | 가부시기가이샤 히다찌세이사꾸쇼 | 화상처리장치의 제어방법 |
US5644654A (en) * | 1987-04-06 | 1997-07-01 | Canon Kabushiki Kaisha | Image processing apparatus capable of efficient coding of complex shape information |
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DE4138979C2 (de) * | 1991-11-27 | 2003-08-07 | Bosch Gmbh Robert | Einrichtung zur objekt-orientierten Codierung von Bildsignalen |
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FR2695497A1 (fr) * | 1992-09-09 | 1994-03-11 | Philips Electronique Lab | Dispositif de codage d'images fixes. |
-
1995
- 1995-03-20 KR KR1019950005871A patent/KR0171151B1/ko not_active IP Right Cessation
- 1995-08-28 US US08/520,204 patent/US5774595A/en not_active Expired - Lifetime
- 1995-09-07 JP JP23043995A patent/JP3759980B2/ja not_active Expired - Fee Related
- 1995-09-07 CN CN95116451A patent/CN1129320C/zh not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CN1129320C (zh) | 2003-11-26 |
CN1131875A (zh) | 1996-09-25 |
US5774595A (en) | 1998-06-30 |
JPH08272958A (ja) | 1996-10-18 |
KR960036709A (ko) | 1996-10-28 |
JP3759980B2 (ja) | 2006-03-29 |
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