Please use this identifier to cite or link to this item: http://rportal.lib.ntnu.edu.tw:80/handle/77345300/32111
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
Chen-Chien Hsu
Ming-Chih Lu
Wei-Yen Wang
Yin-Yu Lu
Issue Date: 1-Oct-2009
Publisher: Elsevier
Abstract: This paper presents a distance measurement method based on pixel number variation of CCD images by referencing to two arbitrarily designated points in the image frames. By establishing a relationship between the displacement of the camera movement along the photographing direction and the difference in pixel count between reference points in the images, the distance from an object can be calculated via the proposed method. To integrate the measuring functions into digital cameras, a 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. To validate the performance of the proposed method, measurement results using the proposed method and ultrasonic rangefinders are also presented in this paper.
URI: http://rportal.lib.ntnu.edu.tw/handle/77345300/32111
ISSN: 0019-0578
Other Identifiers: ntnulib_tp_E0607_01_017
Appears in Collections:教師著作

Files in This Item:
There are no files associated with this item.


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.