[특허]Apparatus for encoding a video signal using feature point based motion estimation

Apparatus for encoding a video signal using feature point based motion estimation 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H04N-007/32 H04N-007/30
출원번호	US-0544355 (1995-10-17)
우선권정보	KR-0010584 (1995-04-29)
발명자 / 주소	Lee Min-Sup,KRX
출원인 / 주소	Daewoo Electronics, Co., Ltd., KRX
인용정보	피인용 횟수 : 26 인용 특허 : 0

초록 ▼

A motion-compensated video signal encoder has a circuit for determining a predicted current frame based on a current frame and a previous frame of a digital video signal. The circuit includes a region detection circuit for detecting a processing region encompassing a moving object from the previous frame based on a difference between the current and the previous frames to generate region information representing the detected processing region. Therefore, a number of pixels is selected from the pixels contained in the detected processing region as feature points based on the region information. A first set of motion vectors between the current and the previous frames, each of the first set of motion vectors representing a motion for each of the selected pixels is then detected. The first set of motion vectors is used for predicting the predicted current frame and transmitted as a set of motion vectors of the video signal together with the region information.

대표청구항 ▼

[ What is claimed is:] [1.] An apparatus, for use in a motion-compensated video signal encoder, for determining a predicted current frame based on a current frame and a previous frame of a digital video signal, comprising:region detection means for calculating a difference between the current frame and the previous frame and for detecting a processing region encompassing a moving object from the previous frame based on the calculated difference to generate region information representing the detected processing region, wherein the processing region has a plurality of image blocks contained in the previous frame and the image blocks are determined by using the calculated difference, wherein said region detection means includes:means for calculating the difference between the current and the previous frames on a pixel-by-pixel basis to generate a frame difference signal wherein the frame difference signal includes N.times.M blocks, each block having P.times.Q pixel difference values and N, M, P and Q are positive integers;means for absolutizing the frame difference signal to generate an absolutized frame difference signal;means for comparing the absolutized frame difference signal with a predetermined value to convert the absolutized frame difference signal into a converted frame difference signal, wherein, when a pixel difference value of the absolutized frame difference signal is smaller than the predetermined value, "0" is assigned as the pixel difference value and, otherwise, "1" is assigned as the pixel difference value;means for counting the number of "1"'s contained in each block of the converted frame difference signal; andmeans for comparing the counted number for each block with a predetermined number to generate the region information having sequentially arranged N.times.M block representative values, wherein, when the counted number for a block is smaller than the predetermined value, "0" is assigned as a block representative value of the region information and, otherwise, "1" is assigned as the block representative value;feature point selection means for selecting a number of pixels from the pixels contained in the detected processing region as feature points based on the region information;first motion vector detection means for detecting a first set of motion vectors between the current and the previous frames, each of the first set of motion vectors representing a motion for each of the feature points;second motion vector detection means for producing a second set of motion vectors for all of the pixels contained in the current frame by using the first set of motion vectors; andmotion compensation means for assigning the value of each of the pixels in the previous frame, said each of the pixels corresponding to one of the pixels in the current frame through one of the second set of motion vectors, as the value of said one of the pixels in the current frame, to thereby determine the predicted current frame.

이 특허를 인용한 특허 (26)

Chang Yuh-Lin ; Lin Yun-Ting, Apparatus and method for tracking deformable objects.
상세보기
Ren, Xianli; Choi, Hye-rin, Apparatus for detecting region of interest and method thereof.
상세보기
Kadono, Shinya, Decoding apparatus based on pixel value motion vectors and shape signal motion vectors.
상세보기
Nakanishi, Keiri, Image coding apparatus, image decoding apparatus, and image decoding method.
상세보기
Kim, Hayoon; Lee, Yunglyul; Moon, Joohee; Kim, Haekwang; Jeon, Byeungwoo; Han, Kihun, Image encoding/decoding method and apparatus using block transformation.
상세보기
Chen, Chien-Chen; Hsieh, Chun-Hsing, Image processing apparatus and method.
상세보기
Kuchiki, Hiroaki, Image processing apparatus for performing object recognition focusing on object motion, and image processing method therefor.
상세보기
Nakaya, Yuichiro; Suzuki, Yoshinori, Inter-frame predicted image synthesizing method.
상세보기
Nakaya, Yuichiro; Suzuki, Yoshinori, Inter-frame predicted image synthesizing method.
상세보기
Nakaya, Yuichiro; Suzuki, Yoshinori, Inter-frame predicted image synthesizing method.
상세보기
Nakaya,Yuichiro; Suzuki,Yoshinori, Inter-frame predicted image synthesizing method.
상세보기
Christiansen,Bernd O., Method and apparatus for fast block motion detection.
상세보기
Sohm,Oliver P., Method for motion vector estimation.
상세보기
Jeannin Sylvie,FRX, Method of estimation of motion between images.
상세보기
Ryman, Paul; Feijoo, Ricardo Fernando; Nagubadi, Anil, Methods and systems for cataloging text in a recorded session.
상세보기
Mazzaferri, Richard James, Methods and systems for generating playback instructions for playback of a recorded computer session.
상세보기
Ryman, Paul Adam, Methods and systems for in-session playback on a local machine of remotely-stored and real time presentation layer protocol data.
상세보기
Ryman, Paul, Methods and systems for joining a real-time session of presentation layer protocol data.
상세보기
Valli,Seppo, Procedure and system for performing motion estimation.
상세보기
Sadowski, Greg, Reducing power needed to send signals over wires.
상세보기
Mazzaferri, Richard James, System and methods for automatic time-warped playback in rendering a recorded computer session.
상세보기
Nishikawa Tsuyoshi,JPX, System for estimating motion vector with instant estimation of motion vector.
상세보기
Ryman, Paul, Systems and methods for single stack shadowing.
상세보기
Chen, Sijia; Li, Kai; Liu, Wayne; Tao, Siping, Utilizing a search scheme for screen content video coding.
상세보기
Terry, Stephen E.; Zhang, Guodong; Miller, James M.; Dick, Stephen G., Wireless communication method and system for configuring radio access bearers for enhanced uplink services.
상세보기
Terry, Stephen E.; Zhang, Guodong; Miller, James M.; Dick, Stephen G., Wireless communication method and system for configuring radio access bearers for enhanced uplink services.
상세보기

IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

연합인증

Apparatus for encoding a video signal using feature point based motion estimation 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

이 특허를 인용한 특허 (26)

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트

연합인증

Apparatus for encoding a video signal using feature point based motion estimation 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

전체(0) 논문(0) 특허(0) 보고서(0)

전체(0) 논문(0) 특허(0) 보고서(0)

이 특허를 인용한 특허 (26)

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트