Line drawings are inherently simple, yet retain most of the information of a full image. This suggest that line drawings, also called contour images, could be useful as an intermediate representation for computer understanding of images. However, extracting physically meaningful contours from photographs has proved to be difficult. Recently, there has been significant progress in detecting cont...

In a Least Developed Country (LDC) like Bangladesh where the textile is the main core of our economy; still there is a major drawback in this sector which is the defect detection of the fabric. In the manual fault detection system with highly trained inspectors, very less percentage of the defects are being detected in upon fabrics in the textile industries. But a real time automatic system can...

This paper proposes a basic taxonomy of image contours. Our goal is to classify smooth curves into five categories, namely, circles, ellipses, line segments, arcs circles and ellipses. These geometrical structures have been chosen as they serve input many computer vision tasks. The proposed strategy applied on set initial disjoint contours, which are grouped together form the aforementioned str...

Contour integration is a fundamental form of perceptual organization. We introduce a new method of studying the mechanisms responsible for contour integration. This method capitalizes on the perceptual persistence of contours under conditions of impending camouflage. Observers viewed arrays of randomly arranged line segments upon which circular contours comprised of similar line segments were s...

We measured detection of a thin vertical line (target) in the presence of a slightly thicker collinear, adjacent line (inducer). Sign and strength of contrast of the inducer were varied. Test lines could be either bright or dark. Detection thresholds were obtained through a temporal two-alternative forced-choice (2AFC) procedure with the method of constant stimuli. When target and inducer had e...

This study was to demonstrate the application of spectrophotometry for rapid and presumptive differentiation of Salmonella from other Enterobacteriaceae based on lysine decarboxylase (LDC) activity. The pH indicator system and cocktails of Salmonella selective inhibitors were optimized to derive a new selective broth (patent pending no. 1301006577) for Salmonella screening. Phenol red (PR) was ...

Malaria detection through microscopic examination of stained blood smears is a diagnostic challenge that heavily relies on the expertise of trained microscopists. This paper presents an automated analysis method for detection and staging of red blood cells infected by the malaria parasite Plasmodium falciparum at trophozoite or schizont stage. Unlike previous efforts in this area, this study us...

Low-dose cyclophosphamide (LDC) induces selective apoptosis of endothelial cells within the vascular bed of tumors. Here, we investigated a hypothesis that the effect of LDC is mediated by the pro-apoptotic action of endogenous inhibitors of angiogenesis. Tumors treated with LDC demonstrate similar expression of matrix metalloproteinases and also basement membrane-derived angiogenesis inhibitor...

The detection of arbitrary objects in images is still a major challenge in image processing. Many approaches rely on the robust extraction of contours. Object contours, however, are frequently occluded by other objects. How can one deal with this problem? One important source for inspirations in such diicult situations is the human visual system. There are several systems that describe the earl...