全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

视觉机制引导的非均匀光照图像二次曝光

DOI: 10.3724/SP.J.1004.2013.01458, PP. 1458-1466

Keywords: 视觉匹配,场景再现,非均匀光照,视觉机制,二次曝光

Full-Text   Cite this paper   Add to My Lib

Abstract:

?针对非均匀光照图像不能满足"视觉匹配"的问题,依据人眼视觉机制提出了非均匀光照图像二次曝光算法.首先,融合退化过程模拟模型(Degradationprocesssimulationmodel,DPSM)和Retinex模型得到了非均匀光照图像的成像模型,利用修正的变分Retinex求解方法,获取乘性光照图像;在人眼视觉阈值性的引导下去除加性光照图像,获取反射图像;依据视觉感光适应性对乘性光照图像进行动态范围调整,并同反射图像相乘获取全局增强结果;将全局增强结果同原始图像融合,并对低照度区域进行颜色校正,获取"视觉匹配"结果.实验证明本文算法的场景再现结果可以较好地满足"视觉匹配",性能达到或者超越了现有算法.

References

[1]  Reinhard E. Tone reproduction operators [Online], available: http://www.cs.ucf.edu/ reinhard/cdrom/, October 1, 2008
[2]  Morel J M, Petre A B, Sbert C. A PDE formalization of Retinex theory. IEEE Transactions on Image Processing, 2010, 19(11): 2825-2837
[3]  Arigela S, Asari V K. A locally tuned nonlinear technique for color image enhancement. WSEAS Transactions on Signal Processing, 2008, 4(8): 514-519
[4]  Ju Ming, Li Cheng, Gao Shan, Mu Guo-Ju, Bi Du-Yan. Non-uniform-lighting image enhancement based on centripetal-autowave intersecting cortical model. Acta Automatica Sinica, 2011, 37(7): 800-810 (鞠明, 李成, 高山, 穆国举, 毕笃彦. 基于向心自动波交叉皮质模型的非均匀光照图像增强. 自动化学报, 2011, 37(7): 800-810)
[5]  Rutherford M D, Brainard D H. Lightness constancy: a direct test of the illumination-estimation hypothesis. Psychological Science, 2002, 13(2): 142-149
[6]  Drago F, Myszkowski K, Annen T, Chiba N. Adaptive logarithmic mapping for displaying high contrast scenes. Computer Graphics Forum, 2003, 22(3): 419-426
[7]  Gao S, Li C, Bi D Y. Image enhancement algorithm based on NF-ICM. Chinese Optics Letters, 2010, 8(5): 474-477
[8]  Kimmel R, Elad M, Shaked D, Keshet R, Sobel I. A variational framework for Retinex. International Journal of Computer Vision, 2003, 52(1): 7-23
[9]  Li T, Asari K V. Adaptive and integrated neighborhood dependent approach for nonlinear enhancement of color images. Journal of Electronic Imaging, 2005, 14(4): 043006
[10]  Nuri O, Ender C. A non-linear technique for the enhancement of extremely non-uniform lighting images. Journal of Aeronautics and Space Technologies, 2007, 3(2): 37-47
[11]  Ebner M. Color Constancy. England: John Wiley & Sons Ltd, 2007
[12]  Li Quan-He, Bi Du-Yan, He Lin-Yuan. Degradation process simulation model and its use in image enhancement. Journal of Xidian University (Natural Science), 2011, 38(6): 185-192 (李权合, 毕笃彦, 何林远. 退化过程模拟模型及其在图像增强中的应用. 西安电子科技大学学报(自然科学版), 2011, 38(6): 185-192)
[13]  Perlin K, Hoert E M. Hypertexture. ACM SIGGRAPH Computer Graphics, 1989, 23(3): 253-262

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133