M. Khalid Khan

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The detection and enhancement of coronary arterial trees (CATs) in an angiogram image is an important preprocessing task that greatly reduces the stress on further processing such as 3D reconstruction of a CAT model. Conventional techniques make use of gradient operators to detect the CAT structure. However, the gradients are local operators that do not(More)
In general, online signature capturing devices provide outputs in the form of shape and velocity signals. In the past, strokes have been extracted while tracking velocity signal minimas. However, the resulting strokes are larger and complicated in shape and thus make the subsequent job of generating a discriminative template difficult. We propose a new(More)
The traditional on-line signature verification process involves use of various dynamic features such as velocity, pressure, acceleration, angles, etc. The idea is to device a composite vector structure combining more than one feature where each feature is treated independently. Our proposed research work is an attempt to exploit the interfeature(More)
We report a modified version of the particle swarm optimization (PSO) algorithm and its application to image registration. The modified version utilizes benefits from the Gaussian and the uniform distribution, when updating the velocity equation in the PSO algorithm. Which one of the distributions is selected depends on the direction of the cognitive and(More)
Helminthosis is one of the major problems of livestock production throughout the world, particularly in tropical and subtropical areas. Chemical control of helminths is in practice in most of the parts of the world. The problem of the development of resistance against the common chemical anthelmintics has renewed the interest in the study of medicinal(More)