정보처리학회논문지B (The KIPS Transactions:PartB)

한국정보처리학회 (Korea Information Processing Society)
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실시간 손동작 인식을 위한 동작 평면 추정

Motion Plane Estimation for Real-Time Hand Motion Recognition

  • 정승대 (경북대학교 전자전기컴퓨터학부) ;
  • 장경호 (경북대학교 전자전기컴퓨터학부) ;
  • 정순기 (경북대학교 컴퓨터공학과)
  • 발행 : 2009.10.31
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초록

손동작을 인식하는 연구가 오랫동안 이뤄져 왔지만 대개의 시스템들이 값비싼 깊이 카메라를 사용하거나 여러 개의 카메라를 사용해 분석하는 등 그 비용이 크며 작동이 가능한 작업 공간이 지극히 제한적이었다. 본 논문에서는 가전제품을 원격 제어하기 위한 목적으로 두 개의 회전 모터를 사용해 작업 공간을 확대하고 저렴한 일반 카메라를 사용해서 효율적으로 손동작을 인식하기 위한 시스템을 제안한다. 이 시스템은 입력된 카메라의 자세 정보와 이미지상의 2차원적 손가락 위치 정보를 이용하여 3차원 궤적을 추정하고 이를 동작 평면으로 투영시켜 의미 있는 선형 동작 패턴으로 복원한다. 또한 본 논문에서는 개발된 시스템을 테스트하여 주어진 목적에 맞는 정확도를 가지는 작업 영역을 정의한다.

In this thesis, we develop a vision based hand motion recognition system using a camera with two rotational motors. Existing systems were implemented using a range camera or multiple cameras and have a limited working area. In contrast, we use an uncalibrated camera and get more wide working area by pan-tilt motion. Given an image sequence provided by the pan-tilt camera, color and pattern information are integrated into a tracking system in order to find the 2D position and direction of the hand. With these pose information, we estimate 3D motion plane on which the gesture motion trajectory from approximately forms. The 3D trajectory of the moving finger tip is projected into the motion plane, so that the resolving power of the linear gesture patterns is enhanced. We have tested the proposed approach in terms of the accuracy of trace angle and the dimension of the working volume.

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참고문헌

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