Two novel methods for range imaging using the MAPP2200 smart sensor

Erik Astrand; Mattias Johannesson; Anders Astrom

doi:10.1117/12.205502

27 March 1995 Two novel methods for range imaging using the MAPP2200 smart sensor

Erik Astrand, Mattias Johannesson, Anders Astrom

Author Affiliations +

Proceedings Volume 2423, Machine Vision Applications in Industrial Inspection III; (1995) https://doi.org/10.1117/12.205502
Event: IS&T/SPIE's Symposium on Electronic Imaging: Science and Technology, 1995, San Jose, CA, United States

Abstract

A range image is an image where each pixel represents a measurement of the distance from the camera to the object. Typical applications for range imaging are inspection and dimension measurement in industrial processes, e.g. in the forest products industry. Range image acquisition can be made in many different ways. In this paper we use an active triangulation method where a sheet-of-light illuminates the scene. The sensor level signal processing task is to extract the light impact position in each sensor column. Two novel algorithms implemented on the commercially available smart image sensor MAPP2200 are presented. Both algorithms give 256 pixel width resolution at a line frequency of 15 - 20 kHz, corresponding to range pixel rates of 4 - 5 MHz, and range resolution varying from 8 up to 13 bits in special cases. This is considerably faster than other proposed methods. One of the methods also gives intensity data concurrent and in perfect registration with the range data and the other has an error detection capability to detect multiple peaks on the sensor.

Citation Download Citation

Erik Astrand, Mattias Johannesson, and Anders Astrom "Two novel methods for range imaging using the MAPP2200 smart sensor", Proc. SPIE 2423, Machine Vision Applications in Industrial Inspection III, (27 March 1995); https://doi.org/10.1117/12.205502

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