نتایج جستجو برای: color imagery

تعداد نتایج: 167971  

ژورنال: مهندسی دریا 2010
آل شیخ, علی اصغر, صداقت, امین, محمدی, نازیلا, ملک, محمدرضا,

The objective of this paper is to introduce a new method for coastlines delineation from high-resolution satellite images automatically. The proposed approach integrates the color histogram analysis for estimating the number of clusters, fuzzy c-partition, and genetic algorithms for optimizing fuzzy c-partition matrix. The imagery is classified into homogenous areas using the proposed fuzzy log...

2012
Sean McCarthy Richard Gould James Richman Courtney Kearney Timothy Lawson Sean C. McCarthy Richard W. Gould Adam Lawson

We examine the impact of incorrect atmospheric correction, specifically incorrect aerosol model selection, on retrieval of bio-optical properties from satellite ocean color imagery. Uncertainties in retrievals of bio-optical properties (such as chlorophyll, absorption and backscattering coefficients) from satellite ocean color imagery are related to a variety of factors, including errors associ...

Journal: :Journal of biomedical optics 2013
Vicente Parot Daryl Lim Germán González Giovanni Traverso Norman S Nishioka Benjamin J Vakoc Nicholas J Durr

While color video endoscopy has enabled wide-field examination of the gastrointestinal tract, it often misses or incorrectly classifies lesions. Many of these missed lesions exhibit characteristic three-dimensional surface topographies. An endoscopic system that adds topographical measurements to conventional color imagery could therefore increase lesion detection and improve classification acc...

2014
Santhosh Baboo S Thirunavukkarasu Dwaraka Doss Goverdhan Doss Vaishnav

Satellite Image segmentation has a most important role to play in the field of remote sensing imaging, for effectively detecting the Surface of the Earth. However more satellite image segmentation techniques are available. This paper work presents an image segmentation based on color feature with unsupervised FCM Algorithm, which yields better results. The entire work is divided into two stages...

2002
Ricardo L. de Queiroz

In the compression of color or multispectral imagery, intra pixel color transforms are usually employed to decorrelate planes. It is usually thought that plane decorrelation (such as provided by the KLT) may lead to higher compression. Spatial correlation, however, is usually not considered. We developed a method to devise a pixel-wise color transform that takes into acount spatial correlation ...

2001
Allen Waxman Jacques Verly David Fay Fang Liu Michael Braun Benjamin Pugliese William Ross

We have developed a prototype system in which a user can fuse up to 4 modalities (or 4 spectral bands) of imagery previously registered to one another with respect to a 3D terrain model. The color fused imagery can be draped onto the terrain to support interactive 3D flythrough. The fused imagery, and its opponent-sensor contrasts, can be further processed to yield extended boundary contours an...

2014
Fuhong He Tao Wang Lijuan Gu Tao Li Weiguo Jiang Hongbo Shao

Taking the Quickbird optical satellite imagery of the small watershed of Beiyanzigou valley of Qixia city, Shandong province, as the study data, we proposed a new method by using a fused image of topography with remote sensing imagery (RSI) to achieve a high precision interpretation of gully edge lines. The technique first transformed remote sensing imagery into HSV color space from RGB color s...

Journal: :Neuropsychologia 2016
Olympia Colizoli Jaap M J Murre H Steven Scholte Daniel M van Es Tomas Knapen Romke Rouw

One of the most astonishing properties of synesthesia is that the evoked concurrent experiences are perceptual. Is it possible to acquire similar effects after learning cross-modal associations that resemble synesthetic mappings? In this study, we examine whether brain activation in early visual areas can be directly related to letter-color associations acquired by training. Non-synesthetes rea...

2005
J. Bryan Mercer Dan Edwards Gang Hong Joel Maduck Yun Zhang

High resolution (1.25 meter) ortho-rectified radar imagery (ORI) from an airborne InSAR platform was recently created for the whole of Great Britain as part of the NEXTMapUK program which simultaneuosly generated a DSM (Digital Surface Model) and DTM (Digital Terrain Model) with 5 meter samples, for the same national area. A similar initiative is underway in the USA. In order to provide a broad...

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