微透镜阵列实现3维物体旋转不变实时识别

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。

Real-time three-dimensional object rotation-invariant recognition with microlens array

Aim A novel method for three-dimensional(3-D) object rotation-invariant recognition is proposed. Methods The conversion of depth information of 3-D objects to 2-D elemental images by use of the characteristic of microlens array makes it is possible to recognition by optical processing. Theoretical analysis shows that three-dimensional object rotation-invariant recognition and exact orientation of rotation direction can also be done with high relevancy of perspective array of 3-D objects. Results Correlative analysis and calculations has been done for the conversion process of recognition, and real-time recognition of dice ,a 3-D object, has been accomplished by use of the method of match filtering. Conclusion and the result showed that the proposed method performed better, exact orientation of rotation direction and rotational angle size discrimination has also been done.