针对现有的阵列声成像的声-光偏离校准复杂性的问题，研究了一种传声器阵列声像图和视频图的偏离校准方法，该方法针对声-光偏离（平移、旋转和缩放）基本问题，推导出了校准偏离的公式．设计了一个声-光复合校准器，通过提取视频图像的光源中心坐标和声像图的声源中心坐标，得到一个校验的声-光坐标偏离值．根据不同位置的五次实验，得到五个校验的偏离值，再利用本文建立的校验模型计算出五个修正量，将这些修正量带入传声器阵列的声成像算法中即可实现传声器阵列的声－光偏离校准．实验结果表明该方法的误差度为0．12°，在允许的0．2°范围之内，可以作为传声器阵列声像图和视频图偏离校准的一般方法．%In order to reduce the complexity of the issue of acoustic and video image calibration .A kind of calibration method of the deviation between acoustic image and video image with microphone array is studied .The formulation of calibrating the deviation is deduced based on the basic problem (translation、rotation and scaling )of the acoustic image and video image .A com-pound sound-light calibrator is designed to achieve a value of the coordinate deviation of acoustic and video image .By repeating the experiment at five different positions ,five group deviated coordinates are achieved .Five correction values are obtained depend on the calibrated modal in this paper .The calibration of the deviation between the sound and light will be accomplished by adding the cali-bration value into the Microphone array acoustic imaging algorithm .The experimental result shows that the error is 0 .12° ,which is in the range of allowance error(0 .2°) .This calibration method is could be as a general method to calibrate acoustic image and video image .
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