The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The developing eye‐antennal disc of Drosophila melanogaster has been studied for more than a century, and it has been used as a model system to study diverse processes, such as tissue specification, organ growth, programmed cell death, compartment boundaries, pattern formation, cell fate specification, and planar cell polarity. The findings that have come out of these studies have informed our understanding...
An elastic graph matching algorithm using biologically inspired features is proposed for the recognition of hand postures. Each node in the graph is labeled using an image feature extracted using the computational model of the ventral stream of visual cortex. The graph nodes are assigned to geometrically significant positions in the hand image, and, the model graphs are created. Bunch graph method...
Threshold detection is a simple and an excellent choice for UWB-IR receivers used in high precision positioning applications. However, due to variations in the shape and amplitude of the received signals, the threshold detectors suffer from timing jitter, leading to loss in timing precision. In this paper, a methodology to reduce the timing jitter in threshold detectors is proposed. It is shown that...
Organ delineation from volumetric images is an integral part of radiation oncology planning. Model based segmentation techniques have been successfully applied for automatic segmentation of region of interest (ROI) in volumetric medical images. The ROI is modelled as a 3D triangular surface mesh which automatically adapts itself to fit to the correct boundary of the ROI in a given image. Automatic...
Organ delineation from volumetric dataset is often encountered problem in medical imaging. Numerous 3D polygonal surface mesh model based segmentation algorithms have been reported in this area. These algorithms aim for a fully automated solution for segmenting anatomical structures in volumetric image datasets. But attraction to false boundaries results in inaccurate segmentation, which can happen...
In this paper we proposed compact size microstrip filter using hexagonal with transmetal Defect Ground Structure (DGS). Here, we have studied the response of five different types (square, circular, triangular, hexagonal & hexagonal with transmetal) of dumbbell shape DGS having same resonant frequency, and compare the response of different shapes DGS. It is observed that proposed DGS have more...
This paper presents a method for finding large empty convex bodies within a 3D scene of polygonal models. The convex bodies we pack are discrete orientation polytopes (k-dops) with a small number of facets. The algorithm searches for a large empty k-dop within the scene, using a combination of random sampling and physical simulation, allowing the body to grow and interact (via rotation, translation,...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.