전자공학회논문지B (Journal of the Korean Institute of Telematics and Electronics B)
- 제29B권2호
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- Pages.40-49
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- 1992
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- 1016-135X(pISSN)
액티브 포커싱을 이용한 3차원 물체의 깊이 계측
Active Focusing Technique for Extracting Depth Information
초록
In this paper,a new approach-using the linear movement of the lens location in a camera and focal distance in each location for the measurement of the depth of the 3-D object from several 2-D images-is proposed. The sharply focused edges are extracted from the images obtained by moving the lens of the camera, that is, the distance between the lens and the image plane, in the range allowed by the camera lens system. Then the depthin formation of the edges are obtained by the lens location. In our method, the accurate and complicated control system of the camera and a special algorithm for tracing the accurate focus point are not necessary, and the method has some advantage that the depth of all objects in a scene are measured by only the linear movement of the lens location of the camera. The accuracy of the extracted depth information is approximately 5% of object distances between 1 and 2m. We can see the possibility of application of the method in the depth measurement of the 3-D objects.
키워드