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四川大学计算机学院
纸质出版日期:2016,
网络出版日期:2016-4-18,
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刘怡光,董鹏飞,李杰,都双丽.基于置信度的深度图融合[J].工程科学与技术,2016,48(4):101-106.
liuyiguang, dongpengfei, lijie, et al. Fusion of Depth Maps with Confidence of Points[J]. Advanced Engineering Sciences, 2016,48(4):101-106.
中文摘要: 由于匹配信息弱或噪声影响,深度计算精度难以保证,故深度图融合是多目立体视觉三维重建中的关键部分。为此,本文提出了一种基于置信度的抗噪融合算法。该方法首先对每幅深度图进行修正,利用一致性检测剔除大多数错误点并填补某些空洞。其次,通过保留那些在自身邻域内具有最高置信度的三维点以删除冗余。最后,将深度图反投影到三维空间,采用迭代最小二乘法进一步优化三维点并剔除离群点。通过在标准测试数据集上与其他算法比较,验证了该方法的有效性。
Abstract:Due to the weakness of match information and influence of noise
the calculation precision of depth cannot be guaranteed. Therefore fusion of multiple depth maps is a typical technique for multi-view stereo (MVS) reconstruction. This paper introduced an antinoise fusion method that took advantage of the confidence of 3D points. This method first performed a refinement process on every depth map to enforce consistency over its neighbors
which could remove most errors and fill many holes simultaneously. After refinement
it deleted redundancies of every point by retaining the point that its confidence was maximal in its neighbors. Finally
it obtained a point cloud by merging all depth maps and used an iterative least square algorithm to further eliminate the noise points. The quality performance of the proposed method was evaluated on several data sets and the comparison with other algorithm was also given in the paper.
多目立体视觉三维重建深度图融合置信度迭代最小二乘法
multiple view stereo3D reconstructionfusion of depth mapsconfidenceiterative least square algorithm
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