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Snakes, Shapes, and Gradient Vector Flow

by Chenyang Xu, Jerry L. Prince - IEEE TRANSACTIONS ON IMAGE PROCESSING , 1998
"... Snakes, or active contours, are used extensively in computer vision and image processing applications, particularly to locate object boundaries. Problems associated with initialization and poor convergence to boundary concavities, however, have limited their utility. This paper presents a new extern ..."
Abstract - Cited by 755 (16 self) - Add to MetaCart
external force for active contours, largely solving both problems. This external force, which we call gradient vector flow (GVF), is computed as a diffusion of the gradient vectors of a gray-level or binary edge map derived from the image. It differs fundamentally from traditional snake external forces

Automatic Word Sense Discrimination

by Hinrich Schütze - Journal of Computational Linguistics , 1998
"... This paper presents context-group discrimination, a disambiguation algorithm based on clustering. Senses are interpreted as groups (or clusters) of similar contexts of the ambiguous word. Words, contexts, and senses are represented in Word Space, a high-dimensional, real-valued space in which closen ..."
Abstract - Cited by 536 (1 self) - Add to MetaCart
closeness corresponds to semantic similarity. Similarity in Word Space is based on second-order co-occurrence: two tokens (or contexts) of the ambiguous word are assigned to the same sense cluster if the words they co-occur with in turn occur with similar words in a training corpus. The algorithm

Correspondence to

by Leonard Leibovici, To Cite Paul M, Bronstein E, Yahav D, Et Al. External, Beilinson Hospital , 2015
"... External validity of a randomised controlled trial on the treatment of ..."
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External validity of a randomised controlled trial on the treatment of

Correspondence

by O Rosales-velderrain, Michael Padilla, Charles H. Choe, Alan R. Hargens, Alan R. Hargens , 2013
"... microvascular flow and foot sensation with mild continuous external compression ..."
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microvascular flow and foot sensation with mild continuous external compression

Correspondence:

by Marc-david Munk, Mph Dora, M. Carboneau, Edd Muhammed Hardan, Faleh Mohamed Ali, Marc-david Munk , 2008
"... The authors declare that they have no conflict of interest or disclosures. No external funding has been received. ..."
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The authors declare that they have no conflict of interest or disclosures. No external funding has been received.

Correspondence to

by Department Of Neurological, J Neurointervent Surg , 2013
"... Integrated flat detector CT and live fluoroscopic-guided external ventricular drain placement within the neuroangiography suite ..."
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Integrated flat detector CT and live fluoroscopic-guided external ventricular drain placement within the neuroangiography suite

Correspondence

by N-acetylglucosamine-inducible Cagap Encodes, Subhrajit Biswas, Monideepa Roy, Asis Datta, Asis Datta , 2003
"... a general amino acid permease which co-ordinates external nitrogen source response and morphogenesis in Candida albicans ..."
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a general amino acid permease which co-ordinates external nitrogen source response and morphogenesis in Candida albicans

Correspondence:

by Centro Médico Teknon
"... In vitro evaluation of the temperature increment at the external root surface after Er,Cr:YSGG laser irradiation of the root canal ..."
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In vitro evaluation of the temperature increment at the external root surface after Er,Cr:YSGG laser irradiation of the root canal

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by De Sûreté Nucléaire (irsn, Occup Environ Med , 2013
"... Mortality associated with chronic external radiation exposure in the French combined cohort of nuclear workers ..."
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Mortality associated with chronic external radiation exposure in the French combined cohort of nuclear workers

Correspondence

by Martina Turk, Vera Montiel, Jose ́ Ramos, Jose ́ Ramos , 2007
"... Plasma membrane composition of Debaryomyces hansenii adapts to changes in pH and external salinity ..."
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Plasma membrane composition of Debaryomyces hansenii adapts to changes in pH and external salinity
Results 1 - 10 of 4,512