摘要
提出了一种从不同方向照射皮肤形成多幅图像重建皮肤表层的新方法。由于皮肤表层凹凸不平,而用传统的立体成像方法存在着镜面反射和全反射,不能精确地重建皮肤表层。而选取一些光强度数据,在这些数据中不包括镜面反射和全反射光强度数据,并从选取的数据中采用单值分解(SVD)方法可以精确计算出法向向量。实验结果表明,这种方法对在一系列包含镜面反射和全反射的序列图像中重建皮肤表层形状非常有效。
This paper proposes a new method for reconstructing a shape of skin surface replica from shading image sequence taken with different light source directions.Since the shading images include shadows caused by surface height fluctuation,and specular and inter reflections,the conventional photometric stereo method is not suitable for reconstructing its surface accurately.In the proposed method,we choose intensity data which do not include specular and inter reflections and self-shadows so that we can calculate accurate normal vector from the selected intensity data using SVD（Singular Value Decomposition） method.The experimental results from real images demonstrate that proposed method is effective for shape reconstruction from shading images which include specular and inter reflections and self-shadows.
出处
《廊坊师范学院学报（自然科学版）》
2017年第1期30-33,共4页
Journal of Langfang Normal University(Natural Science Edition)
基金
淮安市科技支撑计划(HAS2014023-3)
关键词
三维重建
镜面反射
自身阴影
皮肤表层
3D reconstruction
specular reflection
self-shadow
skin surface
