Multifocus synthesis and its application to 3D image capturing
Hirohisa Yamaguchi · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1993
A new technique for the high-resolution image synthesis called multifocus synthesis is presented. As an important extension, the 3-D real-world image capture is discussed. In the approach, the object image is taken at a number of focal distances by a single camera placed at a fixed position. Each of these images are then converted into the multiresolution using the optimized QMF. The resultant volume of coefficients are then analyzed and 3-D distance information is computed.