서지주요정보
다중 센서 융합과 배경 추정을 이용한 물체 영역 검출 기법 = Object region detection algorithm using multi-sensor fusion and background estimation
서명 / 저자 다중 센서 융합과 배경 추정을 이용한 물체 영역 검출 기법 = Object region detection algorithm using multi-sensor fusion and background estimation / 조주현.
저자명 조주현 ; Cho, Ju-Hyun
발행사항 [대전 : 한국과학기술원, 2002].
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소장정보

등록번호

8013064

소장위치/청구기호

학술문화관(문화관) 보존서고

MEE 02087

휴대폰 전송

도서상태

이용가능

대출가능

반납예정일

초록정보

Object region detection algorithm has been studied in many fields of computer vision. It is essential for surveillance systems, tracking systems and recognition systems. This thesis proposes an algorithm for detecting object region in image sequences using multi-sensor fusion and background estimation. The proposed algorithm includes following topics. First, detection using background estimation is supplemented via a new adaptation rule. Background estimation algorithm is widely used because it is robust to illumination changes and is not sensitive to the velocity of objects. But it is sensitive to background noise because not considering spatial correlation in an image. So this is recovered through the techniques such as estimation using two thresholds and update with two adaptation rates. Second, multi-sensor fusion scheme increases capacity of detection. For example, when the color of objects is similar to that of background, the method using CCD sensor doesn't work well. But, it is possible to solve this problem using fusion with another sensor like IR one. Third, dynamic sprite is used to apply detection algorithm using background estimation to the movable camera. When the camera moves, the global motion compensation must be done at first. But it is not enough for detection because newly appeared region doesn't have any stochastic information. So dynamic sprite is used for fast detection using previous stochastic information when the camera moves to the previous position again. Finally, edge-based segmentation is applied to the result of detection. More exact object region is extracted with simple cost function because the result of detection is roughly segmented. Simulation results show that the proposed algorithm detects object region successfully even with disguise and movable camera.

서지기타정보

서지기타정보
청구기호 {MEE 02087
형태사항 vi, 58 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Ju-Hyun Cho
지도교수의 한글표기 : 김성대
지도교수의 영문표기 : Seong-Dae Kim
학위논문 학위논문(석사) - 한국과학기술원 : 전기및전자공학전공,
서지주기 참고문헌 : p. 56-58
주제 물체 영역 검출
다중 센서 융합
배경 추정 기법
object region detection
multi-sensor fusion
background estimation algorithm
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