Spherical 3-D holographic imaging system with an exact inverse problem solution

The authors propose an image reconstruction algorithm with an exact inverse problem solution in a spherical 3-D holographic system. Experimental results obtained with a prototype of the holographic imaging system are discussed. This digital acoustical imaging system can obtain a complete set of the azimuthal data of the object field, and reconstruct fine images by using the exact inverse problem solution with feedback modification. A systolic array processor system can be used, and then real-time holographic image reconstruction becomes feasible