https://scholars.lib.ntu.edu.tw/handle/123456789/116507
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor | 傅楸善 | en |
dc.contributor | 臺灣大學:資訊工程學研究所 | zh_TW |
dc.contributor.author | 陳世明 | zh |
dc.contributor.author | Chen, Shih-Ming | en |
dc.creator | 陳世明 | zh |
dc.creator | Chen, Shih-Ming | en |
dc.date | 2004 | en |
dc.date.accessioned | 2007-11-26T07:53:33Z | - |
dc.date.accessioned | 2018-07-05T01:15:08Z | - |
dc.date.available | 2007-11-26T07:53:33Z | - |
dc.date.available | 2018-07-05T01:15:08Z | - |
dc.date.issued | 2004 | - |
dc.identifier | en-US | en |
dc.identifier.uri | http://ntur.lib.ntu.edu.tw//handle/246246/53935 | - |
dc.description.abstract | Digital camera test is very important. Manufactures have to measure and test many items and then calibrate to make the camera perfect. Test station is at the end of assembly line in factory. The test time and items become very important. Camera test methodology is an art. There are many tradeoffs in camera production. In a camera test procedure, a junior test engineer always mixes many problems. We wish to provide a standard test procedure for camera products. In our paper we collected, integrated, and improved many test methods to make a suitable test methodology for digital camera industry. | en |
dc.description.tableofcontents | 1 Introduction 9 2 Set-up Test Environment System 11 2.1 The Test Steps ………………………………………………….. 12 2.2 Least Squares Approximation ………………………………… 14 2.2.1 Algorithm for Least Square Plane Fitting ………………. 19 2.2.2 Algorithm for Least Square Sphere Fitting …………….. 20 2.2.3 Performance Analysis of Algorithms 2.2.1 and 2.2.2 …… 22 2.3 Fiducial Mark Search (FMS) Technology ……………………. 24 2.4 Environment …………………………………………………… 25 2.5 Test Pattern …………………………………………………….. 28 2.6 Other Environment Test ………………………………………. 29 3 Optical Quality Test System 31 3.1 Rotation ………………………………………………………… 33 3.1.1 Rotation on z-axis …………………………………………. 35 3.1.2 Skew ………………………………………………………... 37 3.2 Principal Point of Lens on Image Plane ……………………… 38 3.2.1 Using Parallel Lines ………………………………………. 39 3.2.2 Use lens shading center …………………………………… 41 3.3 Lens Distortion ………………………………………………… 43 3.3.1 Using Hough Transform ………………………………….. 45 3.4 Lens Resolution ………………………………………………… 47 3.4.1 Using “ISO Resolution Chart for Electronic Still Camera” 48 3.5 Lens Shading …………………………………………………… 50 3.6 Camera Calibration ……………………………………………. 57 4 Image Quality Test System 58 4.1 Dead/Stuck Pixels Compensation …………………………….. 60 4.2 Noise ……………………………………………………………. 63 4.3 Brightness Test (ISO Speed) …………………………………... 67 4.4 Gamma …………………………………………………………. 69 4.5 Color Test …………………………………………………….… 71 5 Conclusion 72 5.1 Judgment ………………………………………………………. 73 5.2 The Improvement and Integration in test pattern ………….. 74 5.2.1 Environment Improvement ……………………………… 75 5.3 Future Work …………………………………………………… 76 | en |
dc.language | en-US | en |
dc.language.iso | en_US | - |
dc.subject | 鏡頭校正 | en |
dc.subject | 數位相機生產研發檢測 | en |
dc.subject | Lens Shading Calibration | en |
dc.subject | Camera Test | en |
dc.title | 數位影像輸入裝置之影像品質量化及檢測方法 | zh |
dc.title | A Digital Image Input Device Image Quality Quantification and Measurement | en |
dc.type | thesis | en |
dc.relation.reference | [1] R. L. Burden and J. D. Faires, Numerical Analysis, 5rd Ed., PWS, Boston, MA, 1993. [2] F. Devernay and O. D. Faugeras, “Automatic Calibration and Removal of Distortion from Scenes of Structured Environments,” Proceedings of SPIE, Vol. 2567, San Diego, CA, pp. 62-72, 1995. [3] S. H. Friedberg, L. E. Spence, and A. J. Insel, Linear Algebra, 2rd Ed., Prentice-Hall, Englewood Cliffs, NJ, 1991. [4] R.C. Gonzales, R.E. Woods, Digital Image Processing, Addison-Wesley, Reading, MA, 2000. [5] J. Graham, “Kodak Gives Film Cameras Heave-Ho,” Money, USA Today, http://www.usatoday.com/money/industries/manufacturing/2004-01-13-kodak-cameras_x.htm, 2004. [6] R. M. Haralick and L. G. Shapiro, Computer and Robot Vision, Vol. I, Addision-Wesley, Reading, MA, 1993. [7] R. M. Haralick and L. G. Shapiro, Computer and Robot Vision, Vol. II, Addision-Wesley, Reading, MA, 1993. [8] Intel, “Intel® Open Source Computer Vision Library for Windows Beta 3.1,” http://www.sourceforge.net/projects/opencvlibrary, 2003. [9] ISO, “ISO 12232, Photography – Digital Still Cameras – Determination of Exposure Index, ISO Speed Ratings, Standard Output Sensitivity, and Recommended Exposure Index,” ISO/TC 42, 2002. [10] ISO, “ISO 12233, Photography -- Electronic Still Picture Camera – Resolution Measurements,” ISO/TC 42, 1999. [11] ISO, “ISO 14524, Photography – Electronic Still-Picture Cameras – Methods for Measuring Opto-Electronic Conversion Functions (OECF),” ISO/TC 42, 1999. [12] ISO, “ISO 15739, Photography – Electronic Still Picture Imaging – Noise Measurements,” ISO/TC 42, 2002. [13] Jack, “Jack’s Photographic and Chemistry Site”, http://www.jackspcs.com/index.htm, 2003. [14] A. Kankaanpaa, “Color Formats,” http://www.physics.utu.fi/ett/kurssi/sfys3066/arto_tiivis.pdf, 2000. [15] M. O’Keefe, “Worldwide Consumer Digital Camera Sales to Reach Nearly 53 Million in 2004,” News, InfoTrends, http://www.infotrends-rgi.com/home/Press/itPress/2003/11.19.03.html, 2003. [16] Kodak, “Kodak CMOS Image Sensors – ISO Measurement,” MTD/PS-0234, Revision No.2, 2001. [17] W. K. Nicholson, Elementary Linear Algebra with Applications, 2rd Ed., PWS, Boston, MA, 1989. [18] S. F. Ray, Applied Photographic Optics, 2nd Ed., Focal Press, Woburn, MA, 1997. [19] C. Rorres and H. Anton, Elementary Linear Algebra with Applications, 8rd Ed., John Wiley and Sons, NY, 2000. [20] F. Senore, “A Program for Vignetting Correction,” http://www.fsoft.it/Imaging/Vignetting.htm, 2004. [21] R. Y. Tsai, “A Versatile Camera Calibration Technique for High-Accuracy 3D Machine Vision Metrology Using Off-the-self TV Cameras and Lens,” IEEE Journal of Robotics and Automation, Vol. 3, No. 4, pp. 323-344, 1987. [22] L. L. Wang and W. H. Tsai, “Computing Camera Parameters Using Vanishing-Line Information from a Rectangular Parallelepiped,” Machine Vision and Applications, Vol. 3, No. 3, pp. 129-141, 1990. [23] J. G. Webster, Medical Instrumentation Application and Design, 3rd Ed., John Wiley & Sons, NY, 1998. [24] P. van Walree, “Vignetting,” Version 1.4, http://www.vanwalree.com/optics/vignetting.html, 2004. [25] R. G. Willson, Modeling and Calibration of Automated Zoom Lenses, Ph.D. Dissertation in the Department of Electrical and Computer Engineering, Carnegie Mellon University, 1994. [26] C. Zeiss, “High Resolution Lenses for Small Image Receivers,” http://www.zeiss.com/de/photo/home_e.nsf, 2004. | en |
item.languageiso639-1 | en_US | - |
item.cerifentitytype | Publications | - |
item.fulltext | no fulltext | - |
item.openairecristype | http://purl.org/coar/resource_type/c_46ec | - |
item.openairetype | thesis | - |
item.grantfulltext | none | - |
顯示於: | 資訊工程學系 |
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