Research on 3D Visual Space Distortion in a Rotational-Stereo Micro Measurement System
Measuring 3-D shape of the silicon-mold of microfluidic chips is very inconvenient because its height is only about 80μm. There are a few of researches focus on the 3-D optical micro-visual-measuring systems at present. A novel rotational-stereo-based micro measurement system (RSMMS) is developed for 3-D measurement of silicon-mold used for reproduction of polymer microfluidic chips. Related measuring technique based on rotational stereo is proposed. The rotational stereo transformation about arbitrary rotation axis in visual space is defined by quaternion representation, and then the working principle and the structure of the system are designed. The weak perspective vision model based on the imaging geometry of RSMMS is introduced. Based on the perspective projection relation of RSMMS, visual space distortion of a micro measurement system based on rotational stereo is researched. The variation of 3d iso-distortion surface depending on the distortion factor is analyzed. Simulation results described a general law of 3-D visual space distortion in micro visual space and provided a theoretical evidence for the generation and rectification of actual distortion in visual space.
rotational stereo silicon-mold of microfluidic chips weak-perspective visual space distortion iso-distortion surface
Sheng Liu Yan Yu Shengchun Long
College of Information Engineering Zhejiang University of Technology Hangzhou, 310032, China
国际会议
2007 IEEE International Conference on Automation and Lofistics
山东济南
英文
2007-08-18（万方平台首次上网日期，不代表论文的发表时间）