Title :
Design considerations for a range image sensor containing a PSD-array and an on-chip multiplexer
Author :
De Bakker, Michiel ; Verbeek, Piet W. ; Steenvoorden, Gijs K.
Author_Institution :
Fac. of Appl. Phys., Delft Univ. of Technol., Netherlands
Abstract :
In the present paper we introduce a range image sensor, the PSD-chip, designed for sheet of light range imaging. The image sensor consists of an array of 128 Position Sensitive Detector (PSD)-strips with a 20 mm length and a 28 μm pitch. Design considerations for the image sensor are discussed, as well as the on-chip electronics. The on-chip electronics consists of an analog part and a digital part. The analog preamplifiers deal with the low-pass filtering of the sensor-signals in order to reduce the noise bandwidth. The digital part consists of an analog current multiplexer, implemented in ECL technology. Our goal is to achieve a 2 MHz range/frequency at 12 bits resolution
Keywords :
cellular arrays; computer vision; distance measurement; image sensors; multiplexing; multiplexing equipment; PSD-array; PSD-chip; analog current multiplexer; analog preamplifiers; image sensor; light range imaging; low-pass filtering; on-chip multiplexer; range image sensor; Bandwidth; Filtering; Frequency; Image sensors; Low pass filters; Multiplexing; Noise reduction; Position sensitive particle detectors; Preamplifiers; Sensor arrays;
Conference_Titel :
3-D Digital Imaging and Modeling, 1997. Proceedings., International Conference on Recent Advances in
Conference_Location :
Ottawa, Ont.
Print_ISBN :
0-8186-7943-3
DOI :
10.1109/IM.1997.603843
