Fundamental research of diffractive imaging toward innovation of information and material

2015 Fiscal Year Final Research Report

• Project/Area Number: 24300065
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Perception information processing/Intelligent robotics
• Research Institution: Muroran Institute of Technology
• Principal Investigator: SHIOYA Hiroyuki 室蘭工業大学, 工学(系)研究科(研究院), 教授 (90271642)
• Co-Investigator(Kenkyū-buntansha): WATANABE Shinya 室蘭工業大学, 工学研究科, 准教授 (30388136) ; GOHARA Kazutoshi 北海道大学, 工学研究院, 教授 (40153746) ; MAEDA Junji 室蘭工業大学, 工学研究科, 教授 (00002311)
• Project Period (FY): 2012-04-01 – 2016-03-31
• Keywords: 情報量 / フーリエ逆問題 / 位相問題 / 画像復元 / 最適化

Outline of Final Research Achievements

Retrieving the Fourier phase is required to reconstruct the image of a non-crystalline object using its Fourier-intensity measurement. In this research, we present the phase problem as an informatics-based minimization with the diffractive constraints, and newly introduce a highly effective algorithm for the phase retrieval. And an ensemble of phase retrieval is introduced to form the parallel architecture for avoiding the shot noise and initial starts. Moreover, the complement method for the missing direct on the diffraction pattern is introduced, and the overall method is established as the fundamental research in diffractive imaging.

Free Research Field

情報数理学