Title :
Model-based image enhancement of far infrared images
Author :
Highnam, Ralph ; Brady, Michael
Author_Institution :
Robotics Res. Group, Oxford Univ., UK
fDate :
4/1/1997 12:00:00 AM
Abstract :
We devise enhancement algorithms for far infrared images based upon a model of an idealized far infrared image being piecewise-constant. We then apply two known enhancement algorithms: median filtering and spatial homomorphic filtering, and then extend the model to develop spatio-temporal homomorphic filtering. The algorithms have been applied to several image sequences and work well, showing significant image enhancement
Keywords :
filtering theory; image enhancement; image sequences; infrared imaging; Prometheus project; far infrared images; image enhancement; image sequences; median filtering; spatial homomorphic filtering; spatio-temporal homomorphic filtering; Computer vision; Degradation; Filtering algorithms; Image enhancement; Infrared image sensors; Infrared imaging; Layout; Optical imaging; Spatiotemporal phenomena; Temperature distribution;
Journal_Title :
Pattern Analysis and Machine Intelligence, IEEE Transactions on
