Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/91291
標題: Optical Inspection of Speed Transforming Gear by Rotated Images Stitching
旋轉影像拼接於速飛輪光學檢測之應用
作者: 許書豪
Shu-Hau Hsu
關鍵字: computer vision
rotating workpiece
parallel-back light
LoG
linear interpolation
images stitching
電腦視覺
轉動之工件
平行背光源
LoG
線性內插
影像拼接
引用: [1]L. Banta, K. Cheng, J. Zaniewski, 'Estimation of limestone particle mass from 2D images,' Powder Technology, Vol. 132,No 2, pp.184-189(2003). [2]L. Chih-Wei, Y. Jiun-Hung , T. Yeong-Shin , 'On-line full scan inspection of particle size and shape using digital image processing,' Powder Technology, Vol. 8, pp.286-292(2010). [3]E.S. Gadelmawla, 'Computer vision algorithms for measurement and inspection of spur gears,' Measurement, Vol. 44, pp.1669-1678(2011). [4]Austin, 'IMAQ vision concepts manual,' National Instruments Corporation(2000). [5]J.S. Chen, A. Huertas, G. Medioni, 'Fast convolution with Laplacian-of-Gaussian masks,' Pattern Analysis and Machine Intelligence, Vol.9, pp.584–590(1987). [6]Z. Zhang, 'A Flexible New Technique for Camera Calibration,' IEEE Transactions on Pattern Analysis and Machine Intelligence, Vol. 22, no. 11, pp.1330–1334( 2000). [7]B. Zitova, J. Flusser, 'Image registration methods: a survey,' Image and Vision Computing, Vol.21, no. 11, pp.977–1000(2003). [8]D. G. Lowe, 'Distinctive image features form scale-invariant keypoints,' International Journal of Computer Vision, Vol. 60, no. 2, pp. 91–110(2004). [9]H. Bay, T. Tuytelaars, L. Van Gool,'SURF: Speeded up roubust features, ' Computer Vision and Image Understading, ' Vol. 110, no. 3, pp. 346-359(2008). [10]Y. Xiong, K. Pulli, 'Sequential Image Stitching fir Mobile Panoramas, ' Communications and Signal Processing, 7th International Conference on ICICS(2009). [11]N. Jing, Y.Fan, S. Lingyi, 'Improved Method of Automatic Image Stitching Based on SURF,' Future Information and Communication Technologies for Ubi-HealthTech, 1st International Symposium(2013). [12]Y. Di, B. Yu-ming, Z. Gao-peng, 'Image Stitching Based on Local Symmetry Features' Proceedings of the 33rd Chinese Control Conference(2014). [13]Y. Zhuang, X. Hu, J. Wang, 'The Implement of an Image Stitching Algorithm based on Feature Extraction,' Education Technology and Training, 2nd International Conference(2009).
摘要: In this study, we adopt the method of optical inspection to measure the profile of speed gear and the relative size. Consider the thickness of workpiece, we adopt Parallel-back light source; at first, we fix the camera to capture the image of rotating workpiece. Second, we calculate coordinate points of the profile of the multiple images by using Laplacian of Gaussian (LoG), and perform the sub-pixel operation. Finally, we perform images stitching through the calibrated relationship between the coordinates of camera and rotated table. In addition, in order to verify the accuracy of the experiment, we measure the workpiece by 2.5D Image Measuring Machine, and compare the differences between the two.
本文使用光學檢測方法針對速飛輪輪廓以及相關尺寸進行測量,考量待測物有厚度之情況,採用平行背光源照射方式,並固定攝影機,透過待測物轉動之方式拍攝影像,並將多張影像進行Laplacian of Gaussian (LoG)尋找輪廓點,並對輪廓點進行次像素運算,透過校正拍攝影像座標系與旋轉台座標兩者之關係,將輪廓影像合併,最後進行數據上運算。另外,為驗證實驗的精確度,則使用2.5D影像量測儀進行量測,相較兩者之差異加以評論。
URI: http://hdl.handle.net/11455/91291
文章公開時間: 2018-08-28
Appears in Collections:機械工程學系所

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