An efficient projection defocus algorithm based on multi-scale convolution kernel templates

Bo ZHU; Li-jun XIE; Guang-hua SONG; Yao ZHENG

doi:10.1631/jzus.C1300080

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An efficient projection defocus algorithm based on multi-scale convolution kernel templates

计算机工程 | Updated：2022-12-09

- An efficient projection defocus algorithm based on multi-scale convolution kernel templates
- An efficient projection defocus algorithm based on multi-scale convolution kernel templates
- 信息与电子工程前沿（英文） 2013年14卷第12期页码：930-940
- Affiliations：
  
  1.School of Aeronautics and Astronautics, Zhejiang University, Hangzhou 310027, China
  2.Center for Engineering and Scientific Computation, Zhejiang University, Hangzhou 310027, China
- Author bio：
  
  [ "Bo ZHU, E-mail: zhubo@zju.edu.cn" ]
  Li-jun XIE, E-mail: zdxlj@zju.edu.cn
- Funds：
  
  Project supported by the National Natural Science Foundation of China (Nos. 11272285, 61008048, and 10876036), the Zhejiang Provincial Natural Science Foundation (No. LY12F02026), and the Department of Science and Technology of Zhejiang Province (No. 2009C31112), China
- DOI：10.1631/jzus.C1300080
  中图分类号： TP391
- 收稿：2013-04-03，
  
  修回：2013-;9-16，
  
  纸质出版：2013-12
- Accepted：
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An efficient projection defocus algorithm based on multi-scale convolution kernel templates[J]. 信息与电子工程前沿（英文）, 2013,14(12):930-940.

Bo ZHU, Li-jun XIE, Guang-hua SONG, et al. An efficient projection defocus algorithm based on multi-scale convolution kernel templates[J]. Frontiers of Information Technology & Electronic Engineering, 2013, 14(12): 930-940.
An efficient projection defocus algorithm based on multi-scale convolution kernel templates[J]. 信息与电子工程前沿（英文）, 2013,14(12):930-940. DOI： 10.1631/jzus.C1300080.

Bo ZHU, Li-jun XIE, Guang-hua SONG, et al. An efficient projection defocus algorithm based on multi-scale convolution kernel templates[J]. Frontiers of Information Technology & Electronic Engineering, 2013, 14(12): 930-940. DOI： 10.1631/jzus.C1300080.

摘要

Abstract

The focal problems of projection include out-of-focus projection images from the projector caused by incomplete mechanical focus and screen-door effects produced by projection pixilation. To eliminate these defects and enhance the imaging quality and clarity of projectors

a novel adaptive projection defocus algorithm is proposed based on multi-scale convolution kernel templates. This algorithm applies the improved Sobel-Tenengrad focus evaluation function to calculate the sharpness degree of intensity equalization and then constructs multi-scale defocus convolution kernels to remap and render the defocus projection image. The resulting projection defocus corrected images can eliminate out-of-focus effects and improve the sharpness of uncorrected images. Experiments show that the algorithm works quickly and robustly and that it not only effectively eliminates visual artifacts and can run on a self-designed smart projection system in real time but also significantly improves the resolution and clarity of the observer's visual perception.

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references

M. Ashdown , , , T. Okabe , , , I. Sato , , , Y. Sato . . Robust Content-Dependent Photometric Projector Compensation . . Proc. Conf. on Computer Vision and Pattern Recognition Workshop , , 2006 . . DOI: 10.1109/CVPRW.2006.172 http://doi.org/10.1109/CVPRW.2006.172 . .

E. Bhasker , , , R. Juang , , , A. Majumder . . Registration techniques for using imperfect and partially calibrated devices in planar multi-projector displays . . IEEE Trans. Visual. Comput. Graph. , , 2007 . . 13 ( ( 6 ): ): 1368 - - 1375 . . DOI: 10.1109/TVCG.2007.70586 http://doi.org/10.1109/TVCG.2007.70586 . .

O. Bimber , , , A. Emmerling . . Multifocal projection: a multiprojector technique for increasing focal depth . . IEEE Trans. Visual. Comput. Graph. , , 2006 . . 12 ( ( 4 ): ): 658 - - 667 . . DOI: 10.1109/TVCG.2006.75 http://doi.org/10.1109/TVCG.2006.75 . .

O. Bimber , , , D. Iwai , , , G. Wetzstein , , , A. Grundhfer . . The visual computing of projector-camera systems . . Comput. Graph. Forum , , 2008 . . 27 ( ( 8 ): ): 2219 - - 2245 . . DOI: 10.1111/j.1467-8659.2008.01175.x http://doi.org/10.1111/j.1467-8659.2008.01175.x . .

M. Brown , , , A. Majumder , , , R.G. Yang . . Camera-based calibration techniques for seamless multiprojector displays . . IEEE Trans. Visual. Comput. Graph. , , 2005 . . 11 ( ( 2 ): ): 193 - - 206 . . DOI: 10.1109/TVCG.2005.27 http://doi.org/10.1109/TVCG.2005.27 . .

M.S. Brown , , , P. Song , , , T.J. Cham . . Image Preconditioning for Out-of-Focus Projector Blur . . Proc. IEEE Computer Society Conf. on Computer Vision and Pattern Recognition , , 2006 . . p.1956 - - 1963 . . DOI: 10.1109/CVPR.2006.145 http://doi.org/10.1109/CVPR.2006.145 . .

M.D. Grossberg , , , H. Peri , , , S.K. Nayar , , , P.N. Belhumeur . . Making One Object Look Like Another: Controlling Appearance Using a Projector-Camera System . . Proc. IEEE Conf. on Computer Vision and Pattern Recognition , , 2004 . . 1 452 - - 459 . . DOI: 10.1109/CVPR.2004.1315067 http://doi.org/10.1109/CVPR.2004.1315067 . .

M. Grosse , , , G. Wetzstein , , , A. Grundhfer , , , O. Bimber . . Coded aperture projection . . ACM Trans. Graph. , , 2010 . . 29 ( ( 3 ): ): Article 22, p.1 - - 12 . . DOI: 10.1145/1805964.1805966 http://doi.org/10.1145/1805964.1805966 . .

ITU . . Methodology for the Subjective Assessment of the Quality of Television Pictures . . ITU Recommendation BT 500-11. International Telecommunication Union , , 2002 . . .

S. Ladha , , , K. Smith-Miles , , , S. Chandran . . Projection Defocus Correction Using Adaptive Kernel Sampling and Geometric Correction in Dual-Planar Environments . . IEEE Computer Society Conf. on Computer Vision and Pattern Recognition Workshops , , 2011 . . p.9 - - 14 . . DOI: 10.1109/CVPRW.2011.5981686 http://doi.org/10.1109/CVPRW.2011.5981686 . .

M. Nagase , , , D. Iwai , , , K. Sato . . Dynamic defocus and occlusion compensation of projected imagery by model- based optimal projector selection in multi-projection environment . . Virtual. Real. , , 2011 . . 15 ( ( 2-3 ): ): 119 - - 132 . . DOI: 10.1007/s10055-010-0168-4 http://doi.org/10.1007/s10055-010-0168-4 . .

S.K. Nayar , , , H. Peri , , , M.D. Grossberg , , , P.N. Belhumeur . . A Projection System with Radiometric Compensation for Screen Imperfections . . Proc. ICCV Workshop on Projector-Camera Systems , , 2003 . . p.1 - - 8 . . . .

NTT . . Video Quality Assessment Methods: 1.5.(5). Citing Electronic Sources of Information. Network Technology Laboratories . . Available from , , http://www.ntt.co.jp/qos/qoe/eng/technology/visual/01_5_5.html http://www.ntt.co.jp/qos/qoe/eng/technology/visual/01_5_5.html , , 1999 . . .

Y. Oyamada , , , H. Saito . . Blind Deconvolution Based Projector Defocus Removing with Uncalibrated Projector- Camera Pair . . IEEE Int. Workshop on Projector-Camera Systems. , , 2009 . . .

R. Raskar , , , G. Welch , , , M. Cutts , , , A. Lake , , , L. Stesin , , , H. Fuchs . . The Office of the Future: a Unified Approach to Image-Based Modeling and Spatially Immersive Displays . . Proc. 25th Annual Conf. on Computer Graphics and Interactive Techniques , , 1998 . . p.179 - - 188 . . DOI: 10.1145/280814.280861 http://doi.org/10.1145/280814.280861 . .

X.H. Wang , , , W. Hua , , , H.J. Bao . . Global color correction for multi-projector tiled display wall . . J. Comput.-Aided Des. Comput. Graph. , , 2007 . . 19 ( ( 1 ): ): 96 - - 101 . . . .

L.J. Xie , , , Y. Zheng , , , T.J. Yang , , , W.X. Gao , , , N.H. Pan . . SimWall: a practical user-friendly stereo tiled display wall system . . J. Zhejiang Univ.-Sci. A , , 2007 . . 8 ( ( 4 ): ): 596 - - 604 . . DOI: 10.1631/jzus.2007.A0596 http://doi.org/10.1631/jzus.2007.A0596 . .

T.J. Yang , , , L.J. Xie , , , Y. Zheng , , , W.X. Gao , , , N.H. Pan . . Construction of a large scale stereo display wall system . . J. Comput.-Aided Des. Comput. Graph. , , 2007 . . 19 ( ( 8 ): ): 953 - - 959 . . . .

L. Zhang , , , S. Nayar . . Projection defocus analysis for scene capture and image display . . ACM Trans. Graph. , , 2006 . . 25 ( ( 3 ): ): 907 - - 915 . . DOI: 10.1145/1141911.1141974 http://doi.org/10.1145/1141911.1141974 . .

Z.Y. Zhang . . A flexible new technique for camera calibration . . IEEE Trans. Pattern Anal. Mach. Intell. , , 2000 . . 22 ( ( 11 ): ): 1330 - - 1334 . . DOI: 10.1109/34.888718 http://doi.org/10.1109/34.888718 . .

B. Zhu , , , L.J. Xie , , , Q.H. Wang , , , T.J. Yang , , , Y. Zheng . . An Intelligent Projection System Adapted to Arbitrary Surfaces . . First Int. Conf. on Instrumentation, Measurement, Computer, Communication and Control , , 2011a . . p.293 - - 298 . . DOI: 10.1109/IMCCC.2011.80 http://doi.org/10.1109/IMCCC.2011.80 . .

B. Zhu , , , L.J. Xie , , , T.J. Yang , , , Q.H. Wang , , , Y. Zheng . . A novel radiometric projector compensation algorithm based on Lambertian reflection model . . SPIE , , 2011b . . 8004 80040I - - 1 . . DOI: 10.1117/12.901092 http://doi.org/10.1117/12.901092 . .

B. Zhu , , , L.J. Xie , , , T.J. Yang , , , Q.H. Wang , , , Y. Zheng . . An adaptive calibration algorithm for projected images in everyday environment . . J. Comput.-Aided Des. Comput. Graph. , , 2012 . . 24 ( ( 7 ): ): 941 - - 948 . . . .

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