A Tentative Application Of Morphological Filters To Time-Varying Images

D. Billard; B. Poquillon

doi:10.1117/12.950274

2 March 1989 A Tentative Application Of Morphological Filters To Time-Varying Images

D. Billard, B. Poquillon

Proceedings Volume 1027, Image Processing II; (1989) https://doi.org/10.1117/12.950274
Event: 1988 International Congress on Optical Science and Engineering, 1988, Hamburg, Germany

Abstract

In this paper, morphological filters, which are commonly used to process either 2D or multidimensional static images, are generalized to the analysis of time-varying image sequence. The introduction of the time dimension induces then interesting prop-erties when designing such spatio-temporal morphological filters. In particular, the specification of spatio-temporal structuring ele-ments (equivalent to time-varying spatial structuring elements) can be adjusted according to the temporal variations of the image sequences to be processed : this allows to derive specific morphological transforms to perform noise filtering or moving objects discrimination on dynamic images viewed by a non-stationary sensor. First, a brief introduction to the basic principles underlying morphological filters will be given. Then, a straightforward gener-alization of these principles to time-varying images will be pro-posed. This will lead us to define spatio-temporal opening and closing and to introduce some of their possible applications to process dynamic images. At last, preliminary results obtained us-ing a natural forward looking infrared (FUR) image sequence are presented.

Citation Download Citation

D. Billard and B. Poquillon "A Tentative Application Of Morphological Filters To Time-Varying Images", Proc. SPIE 1027, Image Processing II, (2 March 1989); https://doi.org/10.1117/12.950274

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