نتایج جستجو برای: pixels neighboring pixels

تعداد نتایج: 44533  

Journal: :Bulletin of the Belgian Mathematical Society - Simon Stevin 1997

Journal: :ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences 2016

In this research, applied synoptic model for determining the average daily temperature and its relationship with the Geopotential Height in middle level (500 HPa). Therefore, two database were used: database of atmospheric circulations, includes the data of geopotential height at 500 HPa and its data were extracted from the NCEP/DOE(US National Oceanic and Atmospheric Administration) in hours 0...

2003
Tony Jebara

We propose modeling images and related visual objects as bags of pixels or sets of vectors. For instance, gray scale images are modeled as a collection or bag of (X,Y, I) pixel vectors. This representation implies a permutational invariance over the bag of pixels which is naturally handled by endowing each image with a permutation matrix. Each matrix permits the image to span a manifold of mult...

Journal: :Discrete Applied Mathematics 2000
Samir Khuller Azriel Rosenfeld Angela Y. Wu

The center of a connected graph G is the set of nodes of G for which the maximum distance to any other node of G is as small as possible. If G is a simply connected set of lattice points (\pixels") with graph structure deened by 4-neighbor adjacency, we show that the center of G is either a 2-by-2 square block, a diagonal staircase, or a (dotted) diagonal line with no gaps. The authors thank Fr...

2010
Stephen T. Bryson Jon M. Jenkins Todd C. Klaus Miles T. Cote Elisa V. Quintana Jennifer R. Hall Khadeejah Ibrahim Hema Chandrasekaran Douglas A. Caldwell Jeffrey E. Van Cleve Michael R. Haas

The Kepler mission monitors > 100, 000 stellar targets using 42 2200×1024 pixel CCDs. Bandwidth constraints prevent the downlink of all 96 million pixels per 30-minute cadence, so the Kepler spacecraft downlinks a specified collection of pixels for each target. These pixels are selected by considering the object brightness, background and the signal-to-noise of each pixel, and are optimized to ...

2004
Peter Tarasewich Christopher Campbell

Information availability has increased dramatically with the advent of mobile devices. But with this availability comes problems of maintaining the privacy and security of information that is displayed in public. Our research has been testing the use of pixel-based displays, which used colored lights instead of text or icons, for information conveyance. One of the benefits of such displays is t...

Journal: :The Astronomical Journal 1998

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