Experimental investigation of the systematic error on photomechanic methods induced by camera self-heating.
Experimental investigation of the systematic error on photomechanic methods induced by camera self-heating.
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DOI：
10.1364/oe.21.007686
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发表时间：
2013-03
期刊：
影响因子：
3.8
通讯作者：
Qinwei Ma;Shaopeng Ma
中科院分区：
文献类型：
--
作者：
Qinwei Ma;Shaopeng Ma
系统研究了使用数码相机时由于自热引起图像膨胀而引起的光机械方法的系统误差，并提出并验证了解释该机制的新物理模型。实验结果表明，图像膨胀的主要原因是相机外壳和镜头卡口的热膨胀，而不是相机内部的机械部件。对基于图像分析和条纹分析的光机械方法相应的系统误差进行了分析和测量，提出并验证了误差补偿技术。
The systematic error for photomechanic methods caused by self-heating induced image expansion when using a digital camera was systematically studied, and a new physical model to explain the mechanism has been proposed and verified. The experimental results showed that the thermal expansion of the camera outer case and lens mount, instead of mechanical components within the camera, were the main reason for image expansion. The corresponding systematic error for both image analysis and fringe analysis based photomechanic methods were analyzed and measured, then error compensation techniques were proposed and verified.