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An Automatic Mapping Points Extraction Algorithm for Calibration of the Wide Angle Camera  

Kim, Byung-Ik (경북대학교 전자전기컴퓨터 공학부)
Kim, Dae-Hyeon (경북대학교 전자전기컴퓨터 공학부)
Bae, Tae-Wuk (경북대학교 전자전기컴퓨터 공학부)
Kim, Young-Choon (영동대학교 정보통신사이버경찰학과)
Shim, Tae-Eun (경북도립대학 IT특약계열)
Kim, Duk-Gyoo (경북대학교 전자전기컴퓨터학부)
Publication Information
Journal of Korea Multimedia Society / v.13, no.3, 2010 , pp. 410-416 More about this Journal
Abstract
This paper presents the auto-extraction method that searches for the Mapping points in the calibration algorithm of the image acquired by the wide angle CCD camera. In this algorithm, we remove the noise from the distorted image and then obtain the edge image. Proposed method extracts the distortion point, comparing the threshold value of the histogram of the horizontal and vertical pixel lines in edge image. This processing step can be directly applied to the original image of the wide angle CCD camera output. Proposed method results are compared with hand-worked result image using the two wide angle CCD cameras having different angles with the difference value of the result images respectively. Experimental results show that proposed method can allocate the distortion-calibration constant of the wide angle CCD camera regardless of lens type, distortion shape and image type.
Keywords
Image processing; Image warping; Calibration of distortion lens;
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