论文信息 - Scale-free object detection using three-dimensional fourier transform

Scale-free object detection using three-dimensional fourier transform

Originally a 3D Fourier transform is used for utilizing the 3D nature of objects. Using this 3D optical Fourier transform, one can do spatial filtering and a correlation on the entire 3D input distribution. For example, with a 3D Fourier transform a conventional 2D joint transform correlator (JTC) can be extended to 3D.

[1] J. Goodman,et al. A technique for optically convolving two functions. , 1966, Applied optics.

[2] J Rosen,et al. Three-dimensional optical Fourier transform and correlation. , 1997, Optics letters.