微操作系统中微观对象三维立体形状重构研究

Three-Dimensional Shape Reconstruction for Microscopic Objects in Micromanipulation System

研究基于体视显微镜的微操作系统中微观对象的三维立体形状重构问题 体视显微镜的两子光路具有对称性和微小的差异性 ,差异性是影响微观对象重构准确性的重要因素 文中使用不同的参数序列描述两子光路的对称性和差异性 ,建立从二维图像空间向三维物空间映射的视觉模型 ,使用弱视差描述微观立体图像的相关性 通过实验分析视觉模型在三维物空间X ,Y ,Z三个方向上的重构精度 ,平均值分别为 0 74 % ,1 98%和 6 6 6 % 。

Stereo light microscope (SLM) is used to reconstruct the 3D shape The two sub systems of SLM are symmetry, generating images with slight difference between themselves, and the matching of images plays an important role to guarantee the precision of reconstruction Using different parameter series, a novel vision model is formulated to transfer the microscopic objects from two dimensional image space to three dimensional object space, and the concept of weak disparity is introduced to describe the coherence of microscopic stereo images Using the vision model, the average reconstruction errors in experiments were 0 74%, 1 98% and 6 66% in X, Y and Z direction of object space respectively The proposed model was tested both on planar sample and curved surface sample