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Color night vision techniques play a very important role in the night vision field. How to evaluate the perceptual quality of the color night vision image is a great need to assess the performance of algorithms in this technology. Currently, people usually judge the performance of color night vision techniques using subjective evaluation measures, which is time consuming and bothersome. This paper...
We developed a fast and efficient method to derive and apply a natural colour mapping for nighttime imagery from multi-band sensors. The colour mapping is derived from the combination of a multi- band image and a corresponding natural colour reference image. The mapping optimizes the match between the multi-band image and the reference image, and yields a night vision image with a colour distribution...
The paper presents a spatial-color model of object and develops an efficient visual tracking algorithm based on particle filter. This spatial-color model captures richer information than the general color histogram because it incorporates spatial distribution of pixels in addition to color. In order to fast compute the weight of each particle, the Integral Images for computation of histogram, mean...
In uncontrolled environments, with dynamic background and lighting changes, performing efficient and real-time foreground - background segmentation is very challenging. This work is based on the hypothesis that the combination of long wave infrared (LWIR) (8-12 mum) and colour cameras can significantly improve the robustness of moving objects extraction. Pros and cons of colour and thermal imagers...
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