Image Analysis and Synthesis Using Physics-Based Modeling for Pearl Quality Evaluation System

Analysis by image synthesis using CG has attracted wide attention in machine vision. This paper proposes a method ofmodeling and synthesizingpearls thatwillbe thecentraltechniqueofa pearlqualityevaluationsystem.Pearlsmanifest a specific optical phenomenon that is not dependent on the direction of the light source. To investigate this feature,we propose a physical model formultilayer film interference called an "illuminant model." The synthesis algorithm has been configured from such representations of physical characteristics as interference, mirroringand texturewhichcorrespondto themain evaluationfactorsobtainedfrom human experts.Further,portions ofphotos ofreal pearls and the synthesizedimages were analyzed based on a scale of psychological evaluation of"pearl-like quality" demonstratingtherebythatthegeneratedimagescanpresent suchapearl-like quality.

• Type: Conference
• Year: 1997
• Where: ICIAP
• Authors: Noriko Nagata, Toshimasa Dobashi, Yoshitsugu Manabe, Teruo Usami, Seiji Inokuchi
• Keywords: Formultilayer Film Interference, ICIAP 1997, Image Processing, Ofphotos Ofreal Pearls, Specific Optical Phenomenon