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Visual tracking in unconstrained environments is very challenging due to the existence of several sources of varieties such as changes in appearance, varying lighting conditions , cluttered background, and frame-cuts. A major factor causing tracking failure is the emergence of regions having similar appearance as the target. It is even more challenging when(More)
Skin color is one of most important source of information widely used in Human-Computer Interaction (HCI) system where detecting the presence of the human plays a key role. It is because of the dynamics and articulations of human body which is hard to be captured rather than using primitive feature like skin color. However, skin color varies across(More)
— We propose here to acquire high resolution sequences of a person's face using a pan-tilt-zoom (PTZ) network camera. This capability should prove helpful in forensic analysis of video sequences as frames containing faces are tagged, and within a frame, windows containing faces can be retrieved. The system starts in pedestrian detector mode, where the lens(More)
The analysis of gene expression has played an important role in medical and bioinformatics research. Although it is known that a large number of samples is needed to determine the patterns of gene expression accurately, practical designs of gene expression studies occasionally have insufficient numbers of samples, making it difficult to ascertain true(More)
Although it is known that aligning short reads to reference genomes becomes harder if such genomes are embedded with complex repeat structures, there has been little effort to quantify this intuition. We investigated several measures of complexity, employed 10 popular short-read aligners to align a large number of diverse genomes, and found that unlike(More)
The alignment of reads generated by next-generation sequencers is an important problem in many biomedical applications. Although many methods have been proposed, we introduce a new randomized algorithm with the distinction of having high performance across a wide range of read lengths and base error rates. We utilize two FM indices to facilitate efficient(More)