Multi-frame filtering techniques for the detection and recognition of moving objects

Abhijit Mahalanobis; B. V. K. Vijaya Kumar

doi:10.1117/12.758164

15 October 2007 Multi-frame filtering techniques for the detection and recognition of moving objects

Abhijit Mahalanobis, B. V. K. Vijaya Kumar

Proceedings Volume 6736, Unmanned/Unattended Sensors and Sensor Networks IV; 67360L (2007) https://doi.org/10.1117/12.758164
Event: Optics/Photonics in Security and Defence, 2007, Florence, Italy

Abstract

Traditional correlation filtering methods produce classification results by processing one image frame at a time. The filters are designed to yield well defined correlation peaks when a pattern or object of interest is present in the input image. However, the decision process is memory-less, and does not take advantage of the history of results on previous frames in a sequence. Recently, Kerekes and Kumar introduced a new Bayesian approach for multi-frame correlation that first produces an estimate of the object's location based on previous results, and then builds up the hypothesis using both the current data as well as the historical estimate. In this paper, we examine a simple approximation to their approach which directly uses the correlation filter outputs while avoiding the need for density functions and explicit probability calculations. Preliminary analysis shows that the simplified approach has the potential for also yielding significant performance improvements over the conventional approach based on individual frames.

Citation Download Citation

Abhijit Mahalanobis and B. V. K. Vijaya Kumar "Multi-frame filtering techniques for the detection and recognition of moving objects", Proc. SPIE 6736, Unmanned/Unattended Sensors and Sensor Networks IV, 67360L (15 October 2007); https://doi.org/10.1117/12.758164

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KEYWORDS

Image filtering

Motion models

Convolution

Gaussian filters

Image processing

Optical filters

Commercial off the shelf technology

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