METHOD FOR GENERATING OMNIFOCAL IMAGE, OMNIFOCAL IMAGE GENERATING DEVICE, OMNIFOCAL IMAGE GENERATING PROGRAM, METHOD FOR ACQUIRING SUBJECT HEIGHT INFORMATION, SUBJECT HEIGHT INFORMATION ACQUIRING DEVICE, AND SUBJECT HEIGHT INFORMATION ACQUIRING PROGRAM

摘要

PROBLEM TO BE SOLVED: To generate a focused image for every pixel location from a plurality of captured images with different focal positions, and height information in a global range, in a well focused state.SOLUTION: The method for generating omnifocal image includes the steps of: acquiring a plurality of images with different focal positions (step S1); acquiring a gray scale image from each image (step S5); performing wavelet transformation for the gray scale image and generating a multiple resolution image (steps S6-S13); generating a probability distribution relating to the focal positions on the basis of the multiple resolution image (step S14); approximately calculating an optimal focal position, for every pixel location, in which a performance index obtained by adding a cost function and a penalty function based on the probability distribution, becomes minimum, using a probability propagation method (steps S17-S20); and generating a focused image for every pixel location and height information from the optimal focal position (step S22).