ITE Transactions on Media Technology and Applications
Online ISSN : 2186-7364
ISSN-L : 2186-7364
Special Section on Image Sensors and Imaging Systems
[Paper] Combined Tactile and Proximity Sensor Employing Compound-eye Camera
Hiroto NakashimaKeiichiro KagawaKazuhiro Shimonomura
Author information

2015 Volume 3 Issue 4 Pages 227-233


We propose an optical sensing device to obtain both tactile and proximity information with high spatial resolution that is necessary while grasping small and intricately-shaped objects using a robot hand. In our proposed device, tactile information is obtained through a light conductive plate, which allows the capture of a tactile image of high spatial resolution using a camera. Proximity information is detected on the basis of stereo matching of a pair of images obtained by two cameras through the transparent light conductive plate. In order to realize this concept in a small device, a compound-eye camera which is composed of a single image sensor and an array of nine micro lenses is introduced. A prototype device provides three visible light and three infrared images for proximity and tactile information, respectively. The performance of the prototype is evaluated through an experiment and the factors affecting its performance are discussed.

Content from these authors
© 2015 The Institute of Image Information and Television Engineers
Previous article Next article