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...
电子学报  2015 

软分割约束边缘保持插值的半自动2D转3D

DOI: 10.3969/j.issn.0372-2112.2015.11.012, PP. 2218-2224

Keywords: 二维转三维,图割,随机游走,软分割

Full-Text   Cite this paper   Add to My Lib

Abstract:

半自动2D转3D将用户标注的稀疏深度转换成稠密深度,是解决3D片源不足的主要手段之一.针对现有方法利用硬分割增强深度边缘引入误差的问题,提出像素点与超像素深度一致性约束的边缘保持插值方法.首先,建立像素点深度和超像素深度传播的能量模型,通过像素点与所属超像素间深度差异的约束项将二者关联起来;其次,利用矩阵表示形式将两个能量模型的最优化转换成一个稀疏线性方程组的求解问题.通过超像素提供的约束项,可避免深度传播穿过低对比度边缘区域,从而能保持对象边缘.实验结果表明,本文方法对象边缘处深度恢复的准确性优于融合图割的随机游走方法,PSNR改善了1.5dB以上.

References

[1]  刘伟,吴毅红.基于图层优化与融合的2D-3D视频转换方法[J]. 计算机辅助设计与图形学学报,2012,24(11):1426-1439. Liu Wei,Wu Yi-hong.A 2D-3D video conversion method based on layer optimization and intergration[J]. Journal of Computer-Aided Design & Computer Graphics,2012,24(11):1426-1439.(in Chinese)
[2]  Wang O,Lang M,Frei M,et al.StereoBrush:interactive 2D to 3D conversion using discontinuous warps[A]. Proceedings of Eurographics Symposium on Sketch-Based Interfaces and Modeling[C]. New York:ACM Press,2011.47-54.
[3]  Guttmann M,Wolf L,Cohen-Or D.Semi-automatic stereo extraction from video footage[A]. Proceedings of IEEE International Conference on Computer Vision[C]. Los Alamitos:IEEE Computer Society Press,2009.136-142.
[4]  Rzeszutek R,Phan R,Androutsos D.Semi-automatic synthetic depth map generation for video using random walks[A]. Proceedings of IEEE International Conference on Multimedia and Expo[C]. Los Alamitos:IEEE Computer Society Press,2011.1-6.
[5]  Levin A,Lischinski D,Weiss Y.Colorization using optimization[A]. Proceedings of ACM SIGGRAPH[C]. New York:ACM Press,2004.689-694.
[6]  褚宏莉,李元祥,周则明,等.基于黑色通道的图像快速去雾优化算法[J]. 电子学报,2013,41(4):791-797. Chu Hong-li,Li Yuan-xiang,Zhou Ze-ming,et al.Optimized fast dehazing method based on dark channel prior[J]. Acta Electronica Sinica,2013,41(4):791-797.(in Chinese)
[7]  曹汛.2D to 3D conversion test sequences[EB/OL]. http://media.au.tsinghua.edu.cn/2Dto3D/testsequence.html,2014-05-12/2014-05-12.
[8]  Zitnick C L,Kang S B,Uyttendaele M,et al.High-quality video view interpolation using a layered representation[J]. ACM Transactions on Graphics,2004,23(3):600-608.
[9]  Ranftl R,Gehrig S,Pock T,et al.Pushing the limits of stereo using variational stereo estimation[A]. Proceedings of IEEE Intelligent Vehicles Symposium[C]. Los Alamitos:IEEE Computer Society Press,2012.401-407.
[10]  Vedaldi A,Fulkerson B.VLFeat:an open and portable library of computer vision algorithms[EB/OL]. http://www.vlfeat.org,2008-01-01/2014-05-12.
[11]  赖文能,陈韦志.浅谈2D至3D视讯转换技术[J]. 影像与识别,2010,16(2):61-75. Lai Wen-eng,Chen Wei-zhi.2D-to-3D video conversion technologies overview[J]. Images & Recognition,2010,16(2):61-75.(in Chinese)
[12]  Hu Wei,Dong Zhao,Yuan Guo-dong.Edit propagation via edge-aware filtering[J]. Journal of Computer Science and Technology,2012,27(4):830-840.
[13]  袁红星,吴少群,朱仁祥,等.融合对象性和视觉显著度的单目图像2D转3D[J]. 中国图象图形学报,2013,18(10):1478-1485. Yuan Hong-xing,Wu Shao-qun,Zhu Ren-xiang,et al.Single-view image 2D-to-3D conversion based on objectness and visual saliency[J]. Journal of Image and Graphics,2013,18(10):1478-1485.(in Chinese)
[14]  Phan R,Androutsos D.Robust semi-automatic depth map generation in unconstrained images and video sequences for 2D to stereoscopic 3D conversion[J]. IEEE Transactions on Multimedia,2014,16(1):122-136.
[15]  Xu X,Po L M,Ng K H,et al.Watershed and random walks based depth estimation for semi-automatic 2D to 3D image conversion[A]. Proceeding of International Conference on Signal Processing,Communications and Computing[C]. Los Alamitos:IEEE Computer Society Press,2012.84-87.
[16]  Zhang L,Vazquez C,Knorr S.3D-TV content creation automatic 2D-to-3D video conversion[J]. IEEE Transactions on Broadcasting,2011,57(2):372-383.
[17]  Achanta R,Shaji A,Smith K,et al.SLIC superpixels compared to state-of-the-art superpixel methods[J]. IEEE Transactions on Pattern Analysis and Machine Intelligence,2012,34(11):2274-2282.
[18]  Barrett R,Berry M,Chan T F,et al.Templates for the Solution of Linear Systems:Building Blocks for Iterative Methods[M]. Philadelphia:SIAM Press,1994.35-48.
[19]  郁理,郭立,袁红星.基于深度图像的视点绘制新方法[J]. 中国科学院研究生院学报,2010,27(5):638-644. Yu Li,Guo Li,Yuan Hong-xing.A novel method of depth-image-based view synthesis[J]. Journal of the Graduate School of the Chinese Academy of Sciences,2010,27(5):638-644.(in Chinese)

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133