1987 Volume 49 Issue 6 Pages 563-570
In the Part I of this series of study, it was reported that R, G, B filters were effective for detecting fruits whose colors were different from their leaves color by a visual sensor.
In this paper, spectral refrectances of fruits and leaves were measured and a pair of wavelength bands where difference of the sensor output between each fruit and its leaves was the largest was obtained by calculating the peak wavelengths and the band widths at half height of interference filters in order to develop a visual sensor which could discriminate fruits whose colors were not only different from but also simular to their leaves color. Besides, discrimination of fruits from their leaves was experimented by use of the interference filters and the visual sensor which was used in the previous experiment, and it was confirmed that the pair of wavelength bands was more effective by comparing with the results in the previous report.
