Bronislav Pribyl

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This paper evaluates the suitability of High Dynamic Range (HDR) imaging techniques for feature point detection under extreme lighting conditions. The conditions are extreme in respect to the dynamic range of the lighting within the test scenes used. This dynamic range cannot be captured using standard low dynamic range imagery techniques without loss of(More)
Correspondences between 3D lines and their 2D images captured by a camera are often used to determine position and orientation of the camera in space. In this work, we propose a novel algebraic algorithm to estimate the camera pose. We parameterize 3D lines using Plücker coordinates that allow linear projection of the lines into the image. A line projection(More)
This work is concerned with camera pose estimation from correspondences of 3D/2D lines, i.e. with the Perspective-n-Line (PnL) problem. We focus on large line sets, which can be efficiently solved by methods using linear formulation of PnL. We propose a novel method ‘DLT-Combined-Lines’ based on the Direct Linear Transformation (DLT) algorithm, which(More)
This paper introduces a fast algorithm intended for corrections of image distortions caused by lenses or similar devices in real time. Not only the algorithm itself is introduced, but also the paper focuses on its acceleration with the focus on programmable hardware. The presented algorithm is designed to correct small geometrical distortions, where the(More)
The HDR tone-mapping operators have evolved rapidly in recent years. Moreover, the physiology-influenced methods have been researched lately as a separate branch. Our contribution to this field is the application of hue correction according to the subjective effect referred to as the Bezold-Brücke hue shift. We introduce a mathematical approach for(More)
This paper introduces a fine image resampling algorithm intended for corrections of image distortions caused by lenses or similar devices. The algorithm is designed for correction of small distortions in terms of pixel displacement but with high subpixel precision. The geometrical description of the correction is through bilinear interpolation within each(More)
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