ALL-IN-FOCUS IMAGE GENERATION METHOD, ALL-IN-FOCUS IMAGE GENERATION DEVICE, ALL-IN-FOCUS IMAGE GENERATION PROGRAM, OBJECT HEIGHT INFORMATION ACQUISITION METHOD, OBJECT HEIGHT INFORMATION ACQUISITION DEVICE AND OBJECT HEIGHT INFORMATION ACQUISITION PROGRAM

摘要

PROBLEM TO BE SOLVED: To generate image and height information which are focused on each pixel position from a plurality of pickup images whose focal positions are different such that focal points are properly corrected across a wide area.;SOLUTION: A plurality of images whose focal positions are different are acquired (step S1), and the acquisition of a gray scale image, the generation of a multiple resolution image and the generation of probability distribution are performed (steps S2 to S14). When an evaluation function obtained by adding a cost function based on the probability distribution and a penalty function is defined as E(X) with respect to allocation X of focal positions, whether or not E(X^*)E(X) is established for another allocation X^* (step S105) is determined (step S107). When this is satisfied, X^* is substituted into X, and steps S105 and S107 are executed again. Image and height information which are focused on each pixel position is generated from the optimal focal position (step S22).;COPYRIGHT: (C)2014,JPO&INPIT