KR100677913B1 - 다중 센서 비디오 신호의 융합에 의한 이동 객체 추적 장치 - Google Patents
다중 센서 비디오 신호의 융합에 의한 이동 객체 추적 장치 Download PDFInfo
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- KR100677913B1 KR100677913B1 KR1020050064855A KR20050064855A KR100677913B1 KR 100677913 B1 KR100677913 B1 KR 100677913B1 KR 1020050064855 A KR1020050064855 A KR 1020050064855A KR 20050064855 A KR20050064855 A KR 20050064855A KR 100677913 B1 KR100677913 B1 KR 100677913B1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/265—Mixing
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/10—Segmentation; Edge detection
- G06T7/11—Region-based segmentation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/10—Segmentation; Edge detection
- G06T7/194—Segmentation; Edge detection involving foreground-background segmentation
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
- G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
- G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
- G08B13/19602—Image analysis to detect motion of the intruder, e.g. by frame subtraction
- G08B13/19608—Tracking movement of a target, e.g. by detecting an object predefined as a target, using target direction and or velocity to predict its new position
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/45—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from two or more image sensors being of different type or operating in different modes, e.g. with a CMOS sensor for moving images in combination with a charge-coupled device [CCD] for still images
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- Computer Vision & Pattern Recognition (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
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- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Image Analysis (AREA)
- Studio Devices (AREA)
Abstract
Description
Claims (4)
- 복수의 센서들로 입력된 신호들의 융합에 의한 이동 객체 추적 장치에 있어서,상기 복수의 센서들로부터 수신된 각 신호에서 사용자가 원치 않는 카메라의 움직임으로 인해 상기 입력되는 신호가 흔들리는 현상을 보상하는 영상 안정화부와,상기 영상 안정화부에서 생성된 안정화된 영상으로 움직이는 객체의 초기값을 추정하기 위해서 배경 정보를 미리 생성하고, 생성된 배경과 입력되는 영상의 차분을 계산하여 객체의 대략적인 위치 및 형태를 추정하는 객체 분할부와,상기 객체 분할부에서 출력된 이동 객체의 분할 정보와 상기 영상 안정화부에서 출력된 안정화된 영상 정보를 이용하여 상기 각 센서에서 수신된 신호들을 영상 융합하는 이동 객체 추적부를 포함함을 특징으로 하는 상기 장치.
- 제1항에 있어서, 상기 객체 분할부는,상기 안정화된 비디오 신호에서 배경을 미리 생성하고, 상기 미리 생성된 배경과 현재 영상의 차분을 계산함으로써 움직이는 객체의 초기 결과를 추정하는 이동 객체 추출부와,상기 이동 객체 추출부에서 추정된 객체의 대략적인 형태의 윤곽선을 능동 형태 기반 추적을 위한 훈련 집합으로 구성하여 모델링하는 형태 초기화부와,상기 형태 초기화부에서의 모델링된 훈련 집합을 이용하여 변화하는 객체의 형태를 최적화하여 추적하는 능동 형태 기반 추적부와,상기 이동 객체 추출부에서 배경 차분을 이용해서 얻은 이동 객체의 대략적인 형태와 위치를 검출하고, 상기 능동 형태 기반 추적부에서 추적되고 있는 이동 객체의 움직임을 예측함으로써 이동 객체의 영역을 추적하는 영역 추적부를 포함함을 특징으로 하는 상기 장치.
- 제1항에 있어서, 상기 이동 객체 추적부는,상기 복수의 센서에서 추출된 복수의 객체들을 포함하는 각 입력 센서들로부터의 영상을 동일한 영상으로 정합되도록 공간변환을 수행하는 영상 정합부와,상기 영상 정합부에서 영상 정합된 각 센서의 영상을 융합함으로써 추적 결과를 보완하는 영상 융합부와,상기 영상 융합부에서의 융합된 영상과 상기 객체 분할부에서 출력된 이동 객체 분할 정보를 이용하여 상기 영상 융합부에서의 영상 융합이 정상적으로 수행되었는지를 검증하는 융합 결과 검증부를 포함함을 특징으로 하는 상기 장치.
- 제3항에 있어서, 상기 영상 융합부는, 상기 영상 정합부에서 정합된 각 영상 을 다중 스케일 변환하고, 상기 스케일 변환된 영상에 기반하여 레벨을 선택한 후, 다중스케일 역변환하는 것을 특징으로 하는 상기 장치.
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