The Hough transform is used to detect patterns in images. Its advantage is the ability to detect discontinuous patterns in noisy images. The drawback is its demand for a large amount of computing power. EEcient algorithms and their implementations in multiprocessor systems have been proposed to overcome the computational requirements. The ability to eeciently map two-dimensional (2D) images int...

OBJECTIVE To compare an open vs a closed approach to the nasal pyramid for the initial repair of nasal fractures. METHODS Retrospective medical record review of 49 patients with acute nasal fractures treated by a single surgeon during a 5-year period. Patients underwent a closed approach to the nasal pyramid (Boise elevator only) or an open approach using rhinoplasty techniques, including ras...

Reducing the VLSI layout area of on-chip networks can result in lower costs and better performance. Those layouts that are more compact can result in shorter wires and therefore the signal propagation through the wires will take place in less time. The grid-pyramid network is a generalized pyramid network based on a general 2D Grid structure (such as mesh, torus, hypermesh or WK-recursive mesh)...

Combinatorial Pyramids are defined as a stack of successively reduced combinatorial maps. The Pyramid construction plan defined in TR-63 [7] allows to describe a pyramid by two functions level and state defined respectively on the set of darts of the initial combinatorial map and the set of levels of the pyramid. These two functions encode respectively the maximum level on which a dart survives...

Progressive, adaptive and hierarchical modes are desirable image coding features. This paper presents a quadtree-pruning pyramid coding scheme satisfying all these objectives. Pyramid coding is an approach suitable for progressive image tramsmission, where the original image is divided into different levels that correspond to successive approximants of the original one. Starting from the origin...