著者
半田 久志 片井 修 馬場 則夫 椹木 哲夫 小西 忠孝 馬場 充
出版者
The Society of Instrument and Control Engineers
雑誌
計測自動制御学会論文集 (ISSN:04534654)
巻号頁・発行日
vol.35, no.11, pp.1438-1446, 1999-11-30 (Released:2009-03-27)
参考文献数
15
被引用文献数
1

In this paper, we propose a new Genetic Algorithm involving a mechanism of Co-evolution. Our Coevolutionary Genetic Algorithm consists of two Genetic Algorithms (GAs): a traditional GA which searches for the optimal solutions for given problems, and another GA to search for effective schemata in the former GA. Also, we adopt binary coding, partial spaces in genetic space, and rotated partial spaces as the coding method for the individuals in the latter GA, namely, schemata for the former GA. Moreover, we discuss on the effectiveness of coding and fitness evaluation for our Coevolutionary Genetic Algorithm. Several computational results on function optimization problems confirm the effectiveness of our approach.
著者
大谷 幸三 馬場 充
出版者
公益社団法人 精密工学会
雑誌
精密工学会誌 (ISSN:09120289)
巻号頁・発行日
vol.78, no.10, pp.880-886, 2012

An appearance inspection is one of the most suitable applications of a laser rangefinder. In such a field, many products are designed by 3-D CAD. Therefore, the appearance inspection of products validates the deviation between the designed 3-D data and the measured 3-D data. There are a lot of products of specular objects with shiny surface such as polished metals and plastic materials. However, conventional triangulation-based rangefinders are known to be difficult to apply to the 3-D shape measurement of such shiny objects. In this study, we propose an advanced laser rangefinder to be able to obtain the 3-D shape of specular objects and apply the rangefinder to an appearance inspection system.