Title
Real-Time Accurate Optical Flow-Based Motion Sensor
Abstract
An accurate real-time motion sensor implemented in an FPGA is introduced in this paper. This sensor applies an optical flow algorithm based on ridge regression to solve the collinear problem existing in traditional least squares methods. It additionally applies extensive temporal smoothing of the image sequence derivatives to improve the accuracy of its optical flow estimates, Implemented on a customized embedded FPGA platform, it is capable of processing 60 320 x 240 images or 15 640x480 images per second By evaluating its accuracy on synthetic sequences, it is shown here that the proposed design achieves very high accuracy compared to other known hardware based designs.
Year
DOI
Venue
2008
10.1109/ICPR.2008.4761126
19TH INTERNATIONAL CONFERENCE ON PATTERN RECOGNITION, VOLS 1-6
Keywords
Field
DocType
least square method,ridge regression,real time,accuracy,adaptive optics,optical flow,fpga,computer vision,field programmable gate arrays,optical imaging
Least squares,Computer vision,Computer science,Field-programmable gate array,Smoothing,Motion sensors,Artificial intelligence,Optical flow,Optical imaging,Image sequence,Adaptive optics
Conference
ISSN
Citations 
PageRank 
1051-4651
7
0.64
References 
Authors
6
4
Name
Order
Citations
PageRank
Zhaoyi Wei11229.18
Dah-Jye Lee242242.05
Brent E. Nelson361679.91
James K. Archibald4632161.01