Akira ASANO,¹ Tsuyoshi KONISHI,² and Shunsuke YOKOZEKI¹

¹Department of Mechanical System Engineering, Kyushu Institute of Technology, Kawazu 680-4, Iizuka, Fukuoka, 820 Japan, ²Department of Material and Life Science, Osaka University, 2-1, Yamadaoka, Suita, Osaka, 565 Japan

(Received May 9, 1996; Accepted September 11, 1996)

We described recently the multiresolution pattern spectrum (MPS), a method to extract the size distribution of image objects based on visual impression. In this paper, an optical implementation method of MPS is proposed using the visual area coding technique, an encoding method to operate gray scale images optically while preserving visual impressions of these.

Key words : mathematical morphology, multiscale analysis, multiresolution, image analysis, image encoding, optical computing