Real-time 3-D object rotation-invariant recognition with microlens array
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摘要: 为了实现3维物体旋转不变实时识别,应用微透镜阵列的多视角成像特点,利用透射像阵列的高关联性,实现3维物体信息与2维透射像阵列信息之间的转换,从而可以利用光学2维图像识别技术实现3维物体的识别。对转换和识别过程进行了理论分析,用匹配滤波的方法进行了实验验证,实现了3维物体旋转不变实时识别。得到了良好的识别效果,并实现了旋转方向的准确定位和旋转角度大小的比较判别。结果表明,应用微透镜阵列可以实现旋转3维物体旋转不变实时识别。Abstract: In order to realize 3-D object rotation-invariant recognition, with help of high relevancy of perspective array of 3-D objects, the depth information of 3-D objects was converted to 2-D elemental images by means of microlens array.Theoretical analysis showed that both 3-D object rotation-invariant recognition and exact orientation of rotation direction could be obtained.Taking a dice,a 3-D object as an example, it was recognized in real time by means of match filtering and the proposed method.The latter performed better, and the exact orientation of rotation direction and rotational angle size discrimination were recognized.The results showed that the real-time 3-D object rotation-invariant recognition can be accomplished with microlens array.
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