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DOI:
Journal of Software:2001.12(10):1464-1471

从多幅参考图像合成目标图像的逆映射算法
郑新,吴恩华
(中国科学院软件研究所计算机科学开放研究实验室,北京 100080;中国科学院软件研究所计算机科学开放研究实验室,北京 100080;澳门大学科技学院,澳门)
Combining Multiple Reference Images in a Backward Mapping Algorithm for Novel View Generation
ZHENG Xin,WU En hua
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Received:November 29, 1999    Revised:January 25, 2000
> 中文摘要: 提出了一种从多幅参考图像来合成新视点目标图像的逆映射算法.这种方法不但成功地填补了由于投影区域扩张而产生的第1类空洞,而且还成功地填补了由于空间非深度连续物体相互遮挡而产生的第2类空洞,从而方便地实现了虚拟环境中的漫游.基于物体表面深度的连续性,提出了一种位移预测方法.该方法可以从单幅参考图像获得逆映射过程中所需要的目标图像的位移信息,从而大大提高了算法的效率.与通常的正向映射算法相比,该算法克服了多幅参考图像所带来的计算量成倍增长等问题,而且误差较小.
Abstract:Based on the backward mapping technique, an efficient image-based rendering algorithm for novel view generation from multiple reference images in a static scene is presented in this paper. It successfully fills the holes in the derived image both occured when object surfaces are magnified in the novel view and when occluded surfaces become visible. This algorithm is more efficient by the heuristic technique proposed in this paper which gets displacement values used during backward mapping process from single main reference image under the observation that, the shape of space surfaces often changes smoothly. Comparing with the usual forward mapping methods, this algorithm generates derived images with less errors and tackles the problems associated with multiple reference images.
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基金项目:国家自然科学基金资助项目(69873044);the Research Grant of University of Macau(RG00999-00S/WEH/FST) 国家自然科学基金资助项目(69873044);the Research Grant of University of Macau(RG00999-00S/WEH/FST)
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郑新,吴恩华.从多幅参考图像合成目标图像的逆映射算法.软件学报,2001,12(10):1464-1471

ZHENG Xin,WU En hua.Combining Multiple Reference Images in a Backward Mapping Algorithm for Novel View Generation.Journal of Software,2001,12(10):1464-1471