본 논문에서는 최근 실내용 3D 센서로 크게 주목받고 있는 마이크로소프트社의 키넥트 센서의 작동 원리에 대해 알아본다. 특히, 레이저 광원에 의해 프로젝션 된 후, 다시 IR 카메라를 통해 촬영되는 구조광 패턴(Structured-Light Pattern)의 특징을 분석하고, 이러한 패턴이 3차원 정보로 복원되기 위해 적용 가능한 몇 가지의 correspondence 매칭 방식을 제시한다. 실제로, 키넥트 패턴의 매칭 방식에 대해서 명시적으로 알려진 바는 없으나, 본 논문에서는 간단한 블록매칭 방식을 패턴에 적용하여 의미 있는 결과를 보이고, 실험을 통해 제시한 매칭 방식에 가장 적합한 파라미터를 제시한다. 이와 같은 분석은 새로운 3D 센서의 개발이나, 다양한 3차원 센서 중 특정 응용에 적합한 기술을 선택하는데 있어 기본 정보로 활용 될 수 있다.
KSP Keywords
Light pattern, Structured light
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