서지주요정보
능동 카메라의 제어를 위한 고속 움직임 검출 및 추적 알고리즘 = A fast motion detection and tracking algorithm for active camera control
서명 / 저자 능동 카메라의 제어를 위한 고속 움직임 검출 및 추적 알고리즘 = A fast motion detection and tracking algorithm for active camera control / 강동구.
저자명 강동구 ; Kang, Dong-Goo
발행사항 [대전 : 한국과학기술원, 2002].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8012983

소장위치/청구기호

학술문화관(문화관) 보존서고

MEE 02006

SMS전송

도서상태

이용가능

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반납예정일

초록정보

Commercial active camera surveillance systems require a novel algorithm for fast and smooth motion tracking of a fast moving object as well as the improvement of video coding performance. So various algorithms based on displaced frame difference (DFD) have been developed due to their relative simplicity. However, they still need large computation for accurate global motion estimation (GME), suffer from noisy DFD, and cannot detect slow object due to the constant frame interval. In this paper, we propose an efficient DFD based motion tracking algorithm consisting of three stages: GME, global motion compensation (GMC), and localization stages. In the GME stage, we choose several confident blocks as reference ones guaranteeing the true global motion. Thereby, the number of search points can be greatly reduced while keeping global motion accuracy. In the GMC stage, we can detect a slow and stationary, or fast object from a DFD. This DFD is obtained by using a previous frame which is properly selected with the proposed double buffering algorithm. Finally, in the localization stage, we extract the moving object area from noisy DFD by using statistics between DFD and the current frame. We implement the proposed algorithm into an active camera system equipped with a pan-tilt unit and a standard PC with an AMD 800MHz processor. It is proved that the system operates well with a camera rotating speed up to 40?sec. It can perform the exhaustive search for a search range of ?0, and achieve the processing speed of about 50 frames/sec for an image sequence of 320x240.

서지기타정보

서지기타정보
청구기호 {MEE 02006
형태사항 iv, 58 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Dong-Goo Kang
지도교수의 한글표기 : 나종범
지도교수의 영문표기 : Jong-Beom Ra
학위논문 학위논문(석사) - 한국과학기술원 : 전기및전자공학전공,
서지주기 참고문헌 : p. 55-56
주제 움직임 추적
motion tracking
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