CCD camera-based range sensing with FPGA for real-time processing

Authors:
Chun-Shin Lin;Hyongsuk Kim
Affiliations:
Electrical and Computer Engineering, University of Missouri-Columbia, Columbia, MO;Electronics and Information Engineering, Chonbuk National University, Republic of Korea
Venue:
ICESS'05 Proceedings of the Second international conference on Embedded Software and Systems
Year:
2005

Citing 4
Cited 0

Color-Encoded Structured Light for Rapid Active Ranging

IEEE Transactions on Pattern Analysis and Machine Intelligence
Machine vision

Machine vision
Recognition of polyhedrons with a range finder

IJCAI'71 Proceedings of the 2nd international joint conference on Artificial intelligence
High-accuracy stereo depth maps using structured light

CVPR'03 Proceedings of the 2003 IEEE computer society conference on Computer vision and pattern recognition

Quantified Score

Hi-index	0.00

Visualization

Abstract

A depth measurement system that consists of a single camera, a laser light source and a rotating mirror is investigated. The camera and the light source are fixed at position and face a rotating mirror. The laser light is reflected by the mirror and projected to the scene for depth measurement. The camera detects the laser light location on object surfaces through the same mirror. The scan over the measured area is done by mirror rotation. FPGA is used to quickly process the collected images to generate a range image. A 136 × 240 range image can be generated in 2.3 seconds. This speed is 4 times faster than that of a PC with a 2.8GHz clock. If the frame rate can be increased to 300 per second, the speed improvement will be about 15 times. The technology, on the other hand, offers a solution for embedded implementation.