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Proceedings Paper

Fast and accurate extraction algorithm for center of cross-line based on two windows scanning
Author(s): Zhibin Chen; Mengze Qin; Yan Song; Wenjian Xiao
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Paper Abstract

Multi-spectral integration target consists of collimator, lighting and target plate with cross-line and four-bar target. The high brightness image of four-bar target and stray light have a serious impact on the auto extraction for center of cross-line when do the optical axis parallelism on-line test using the multi-spectral target. To solve the problem, a fast and accurate extraction algorithm for center of cross-line based on two windows scanning was proposed. Firstly, using thresholding techniques get rid of the low brightness stray light. Then, using two windows scanning method get rid of the image of high brightness four-bar target and get the cross-line area. Lastly, according to the results to find the corresponding area in the gray-scale map of the original image, using energy accumulation method find the extreme point of energy. The value of x-axis and y-axis is the position of the center of cross-line. The results show that the algorithm is fast and accurate and can realize the extraction for center of cross-line under the influence of the high brightness four-bar target and stray light.

Paper Details

Date Published: 8 October 2015
PDF: 6 pages
Proc. SPIE 9675, AOPC 2015: Image Processing and Analysis, 96751F (8 October 2015); doi: 10.1117/12.2199391
Show Author Affiliations
Zhibin Chen, Ordnance Engineering College (China)
Mengze Qin, Ordnance Engineering College (China)
Yan Song, Ordnance Engineering College (China)
Wenjian Xiao, Ordnance Engineering College (China)


Published in SPIE Proceedings Vol. 9675:
AOPC 2015: Image Processing and Analysis
Chunhua Shen; Weiping Yang; Honghai Liu, Editor(s)

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