Dynamic correction of image distortions for a kinect-projector system
This paper addresses the problem of correcting distortion in an image projected onto a target screen without using a camera. Unlike a camera-projector system that projects a special pattern on the screen and acquires it using a camera for distortion correction, the proposed system&...
Intuitive transfer function editing using relative visibility histograms
In this paper, we present an interactive approach for intuitively editing colors and opacity values in transfer functions for volume visualization. We introduce the concept of a relative visibility histogram, which represents the difference between the global visibility distribution across the...
Horta, Agnus Azevedo
Magalhães, Léo Pini
Comparing the performance and accuracy of algorithms applied to tattoos images identification
This article presents results of the simulation of SIFT based algorithms in the context of the identification of tattoos. The algorithms studied are the SIFT - Scale Invariant Feature Transform, ASIFT - Affine SIFT, BOV - Bag of Visual Words and FV - Fisher Vector. The...
Radial line Fourier descriptor for historical handwritten text representation
Automatic recognition of historical handwritten manuscripts is a daunting task due to paper degradation over time. Recognition-free retrieval or word spotting is popularly used for information retrieval and digitization of the historical handwritten documents. However, the performance of word spotting...
A dynamic non-manifold mesh data structure to represent biological materials
Computational models of biological materials enable researchers to gain insight and make testable predictions of quantitative dynamic responses to stimuli. These models are particularly challenging to develop because biological materials are (1) highly heterogeneous containing both biological cells and...
Fast indirect lighting approximations using the representative candidate line space
We propose a novel approach for using directional Line Space information in calculation of indirect illumination. Typically, the Line Space is build on top of regular recursive grids and contains visibility information which is used to perform an efficient empty space skipping during...
Analyzing histone modifications using tiled binned clustering and 3D scatter plots
A major goal in epigenetics is understanding how cells differentiate into different cell types. Besides the increase of individual data sets, the amount of replicated experiments generating a tremendous amount of data is ever increasing. While biologists primarily analyze their data on ...
- DSpace at University of West Bohemia
- Publikace ZČU / UWB Publications
- Časopisy ZČU / UWB Journals
- Journal of WSCG
- Volume 26 (2018)
- 7 2018