title: Visual information processing using bacteriorhodopsin-based complex LB films.
abstract: Image extraction and visual information processing using bacteriorhodopsin (bR)-based bioelectronic devices is presented. Image extraction was achieved using a photoreceptor consisting of bR and spiropyran films. The undesired signals from the photoreceptor were automatically eliminated from the whole signal by spiropyran films acting as an optical noise filter that increases the target signal to an undesired signal ratio. For the information processing, the photoreceptor consisting of bR and lipid films deposited with different configurations was used and the target signals were processed to achieve the pattern recognition. The pattern recognition was based on not only the response variability of bacteriorhodopsin, induced by different film configurations, but also on the initial learning process. The input patterns were predicted by simple calculation with the known signals through the initial learning process.
authors.affiliation: Department of Chemical Engineering, Sogang University, C.P.O. Box 1142, Seoul 100-611, South Korea.
authors.forename: J
authors.initials: J
authors.lastname: Min
authors.forename: H G
authors.initials: HG
authors.lastname: Choi
authors.forename: B K
authors.initials: BK
authors.lastname: Oh
authors.forename: W H
authors.initials: WH
authors.lastname: Lee
authors.forename: S H
authors.initials: SH
authors.lastname: Paek
authors.forename: J W
authors.initials: JW
authors.lastname: Choi
mesh_terms: D001436:Bacteriorhodopsins; D001578:Benzopyrans; D015374:Biosensing Techniques / Q000295:instrumentation / Q000379:methods*; D006801:Humans; D007211:Indoles; D008954:Models, Biological; D009574:Nitro Compounds; D055095:Optics and Photonics; D010364:Pattern Recognition, Visual; D020419:Photoreceptor Cells, Vertebrate
chemical_list: D001578:Benzopyrans; D007211:Indoles; D009574:Nitro Compounds; C088184:spiropyran; D001436:Bacteriorhodopsins