Please use this identifier to cite or link to this item: http://rportal.lib.ntnu.edu.tw:80/handle/77345300/31933
Title: Distance measurement based on pixel variation of CCD images
Authors: 國立臺灣師範大學電機工程學系
C.-C. Hsu
M.-C. Lu
W.-Y. Wang
Y.-Y. Lu
Issue Date: 1-Oct-2009
Publisher: ISA
Abstract: This paper presents a distance measurement method based on pixel number variation ofimages for digital cameras by referencing to two arbitrarily designated points in image frames. Based on an established relationship between the displacement of the camera movement along the photographing direction and the difference in pixel counts between reference points in the images, distance from an object can be calculated via the proposed method. To integrate the measuring functions into digital cameras, circuit design implementing the proposed measuring system in selecting reference points, measuring distance, and displaying measurement results on CCD panel of the digital camera is proposed in this paper. In comparison to pattern recognition or image analysis methods, the proposed measuring approach is simple and straightforward for practical implementation into digital cameras. Experiment results have demonstrated that the proposed method is capable of yielding satisfactory measurement resultsin a very responsive way.
URI: http://rportal.lib.ntnu.edu.tw/handle/77345300/31933
ISSN: 0019-0578
Other Identifiers: ntnulib_tp_E0604_01_011
Appears in Collections:教師著作

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