立体视觉传感器优化设计技术研究  

Optimal Design and Technical Study of Stereoscopic Visual Sensor

作　　者：周学斌[1] 杨学友[1] 杨楠[1] 叶声华[1] 

机构地区：[1]天津大学精密测试技术及仪器国家重点实验室,天津300072

出　　处：《计算机测量与控制》2007年第6期831-833,共3页Computer Measurement &Control

基　　金：国家自然基金仪器仪表专项基金项目"立体视觉检测仪器"(50327501)

摘　　要：依据几何成像原理建立了对称式立体视觉传感器的参数模型,通过对此模型坐标测量误差及传感器各参数误差传递函数的分析,研究了立体视觉传感器结构参数及其误差传递规律对传感器综合测量精度的影响关系特性,分析了有效视场、坐标测量精度和传感器结构参数之间的关系,给出了立体视觉传感器结构参数的设计原则与方法步骤,对立体视觉传感器的结构进行了优化设计,对比了传统结构和新式结构的优缺点,并在文章最后介绍了实际应用以及达到的精度。A parameter model of symmetrical stereoscopic visual sensor is set up according to geometrical imaging principle through analyzing the measurement accuracy of a stereoscopic visual sensor and the error transfer functions of the sensor structure parameters. The effect of the visual sensor structural parameters and the error transfer rules on the sensor measurement result is probed. The error analysis explicitly illustrates the dependence of the visual sensor accuracy on the sensor structural parameters. The relationship among the effective field of view, coordinate measuring accuracy and sensor structural parameters is analyzed. Based on the comprehensive consideration for designing an ideal visual sensor, the principle and method of the sensor design are derived. The structure of symmetrical stereoscopic visual sensor is optimally designed and the merits and demerits of classical structure and advanced structure are compared. Lastly, the article also introduces the practical applications and the accuracy achieved.

关 键 词：立体视觉传感器 结构参数 精度分析 结构优化 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]