نتایج جستجو برای: stereo matching
تعداد نتایج: 115934 فیلتر نتایج به سال:
Stereo is a well-known technique for obtaining depth information from digital images. Nevertheless, this technique still suffers from a lack in accuracy and/or long computation time needed to match stereo images. A new hierarchical algorithm using an image pyramid for obtaining dense depth maps from color stereo images is presented. We show that matching results of high quality are obtained whe...
In this paper we present a comparison study between different aggregation functions for the combination of RGB color channels in stereo matching problem. We introduce color information from images to the stereo matching algorithm by aggregating the similarities of the RGB channels which are calculated independently. We compare the accuracy of different stereo matching algorithms and aggregation...
Stereo Matching can provide important information about the environment for many autonomous systems. Usually one of the demands for these systems is real-time or almost real-time running. This is why we studied how to adapt two stereo matching measures to this demand, by providing an implementation on a GPU . For stereo matching algorithm a simple local approach based on window aggregation was ...
Most of the existing stereo matching algorithms assume that the corresponding pixels have the same intensity (color) in both images. But in real world situations, image color values are often affected by various radiometric factors such as illumination direction, illuminant color, and imaging device changes. Hence, we cannot fully depend on the raw color recorded by a camera. So, the assumption...
Global stereo matching methods aim to reduce the sensibility of stereo correspondence to ambiguities caused by occlusions, poor local texture or fluctuation of illumination. However, when facing the problem of real-time stereo matching, as in robotic vision, local algorithms are known to be the best. In this paper, we propose a semi-local stereo matching algorithm (SLSM algorithm); an area-base...
This paper proposes a System-on-ProgrammableChip (SoPC) architecture to implement a stereo matching algorithm based on the sum of absolute differences (SAD) in a FPGA chip which can provide 1396×1110 disparity maps at 30 fps speed. The hardware implementation involves a 32bit Nios II microprocessor, memory interfaces and stereo matching algorithm circuit module. The stereo matching algorithm co...
Event cameras are novel bio-inspired vision sensors that output pixel-level intensity changes in microsecond accuracy with high dynamic range and low power consumption. Despite these advantages, event cannot be directly applied to computational imaging tasks due the inability obtain high-quality events simultaneously. This paper aims connect a standalone camera modern so applications can take a...
The experimental setup consists of a pair of cameras mounted on a mobile robot vehicle. A sequence of stereo image pairs is taken during vehicle motion, and the images are processed by a corner detector. One of the first steps in extracting useful information from the corners is to solve the correspondence problem. For a stereo sequence, this requires both the temporal matching of corners along...
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