Results 261 to 270 of about 771,460 (318)
Some of the next articles are maybe not open access.

Visual image query

Proceedings of the 2nd international symposium on Smart graphics, 2002
The explosion of storage media size and bandwidth has led to huge image databases. Methods are needed to find a particular image based on a crude description by the user. Keywording is not only tedious, but also subjective and therefore often incorrect.
Kresimir Matkovic   +4 more
openaire   +1 more source

Enhanced Visualization of Hyperspectral Images

IEEE Geoscience and Remote Sensing Letters, 2010
An enhanced visualization algorithm for hyperspectral images (HSI) is presented in this paper. The visualization is based on the projection onto color matching functions of the human vision system. A contrast enhancement procedure is introduced making use of multiband gradient information.
Zahid Mahmood, Paul Scheunders
openaire   +3 more sources

Visual modelling: from images to images

The Journal of Visualization and Computer Animation, 2002
AbstractThis paper contains two parts. In the first part an automatic processing pipeline is presented that analyses an image sequence and automatically extracts camera motion, calibration and scene geometry. The system combines state‐of‐the‐art algorithms developed in computer vision, computer graphics and photogrammetry.
Marc Pollefeys, Luc Van Gool
openaire   +1 more source

Visualizing Image Priors

2016
Image priors play a key role in low-level vision tasks. Over the years, many priors have been proposed, based on a wide variety of principles. While different priors capture different geometric properties, there is currently no unified approach to interpreting and comparing priors of different nature.
Tamar Rott Shaham, Tomer Michaeli
openaire   +1 more source

A Visual Image Processor

IEEE Transactions on Computers, 1968
Abstract—A computer, the Visual Image Processor, is described which is designed to process visual images. Images are read by a vidicon camera and stored in any of three identical cathode-ray electrostatic storage tubes. Two storage systems are read simultaneously, with the reading beams spatially displaced from each other, and a signal which is a ...
openaire   +1 more source

Visual Servoing on Image Maps

2008
In this paper we consider the problem of servoing wheeled vehicles in an indoor, initially unknown environment. The proposed approach relies on a hybrid (metric and topological) map built on visual cues. Navigation is planned using topological information to trace a path through viapoints that can be robustly performed by visual servoing control to ...
A. DANESI   +2 more
openaire   +2 more sources

Cognitive Mechanisms of Visual Memories and Visual Images

Imagination, Cognition and Personality, 2003
Two experiments are reported that investigate recent claims that a visual memory and a visual image access different mechanisms within working memory and are differentially susceptible to interference. Experiment 1 demonstrates that when participants are required to hold the visual memory in consciousness, the representation is liable to interference ...
McConnell, Jean, Quinn, J. G.
openaire   +2 more sources

Enhancement of CT images for visualization

ACM SIGGRAPH 2019 Posters, 2019
Modern medical science strongly depends on imaging technologies for accurate diagnose and treatment planning. Raw medical images generally require post-processing - like edge and contrast enhancement, and noise removal - for visualization. In this paper, a clustering-based contrast enhancement technique is presented for computed tomography (CT) images.
Anam Mehmood   +3 more
openaire   +1 more source

Image rectification for stereoscopic visualization

Journal of the Optical Society of America A, 2008
This paper proposes an approach to rectifying two images of the same scene captured by cameras at general positions so that the results form a stereo pair that satisfies the constraints of the stereoscopic visualization platforms. This is unlike conventional image rectification research that primarily focuses on making stereo matching easier but pays ...
Jin, Zhou, Baoxin, Li
openaire   +2 more sources

Visual pattern image coding

IEEE Transactions on Communications, 1990
A novel framework for digital image compression called visual pattern image coding, or VPIC, is presented. In VPIC, set of visual-patterns is defined independent of the images to be coded. Each visual pattern is a subimage of limited spatial support that is visually meaningful to a normal human observer.
Dapang Chen, Alan C. Bovik
openaire   +1 more source

Home - About - Disclaimer - Privacy