A low-cost, practical acquisition and rendering pipeline for real-time free-viewpoint video communication
| Autor: | Sverker Rasmuson, Ulf Assarsson, Erik Sintorn |
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| Rok vydání: | 2020 |
| Předmět: |
Computational complexity theory
Computer science Real-time computing ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION Stereo reconstruction 020207 software engineering 02 engineering and technology Viewpoints Computer Graphics and Computer-Aided Design Graphics pipeline Rendering (computer graphics) Weighting Computer graphics 0202 electrical engineering electronic engineering information engineering 020201 artificial intelligence & image processing Computer Vision and Pattern Recognition Software Surface reconstruction |
| Zdroj: | The Visual Computer. 37:553-565 |
| ISSN: | 1432-2315 0178-2789 |
| DOI: | 10.1007/s00371-020-01823-7 |
| Popis: | We present a semiautomatic real-time pipeline for capturing and rendering free-viewpoint video using passive stereo matching. The pipeline is simple and achieves agreeable quality in real time on a system of commodity web cameras and a single desktop computer. We suggest an automatic algorithm to compute a constrained search space for an efficient and robust hierarchical stereo reconstruction algorithm. Due to our fast reconstruction times, we can eliminate the need for an expensive global surface reconstruction with a combination of high coverage and aggressive filtering. Finally, we employ a novel color weighting scheme that generates credible new viewpoints without noticeable seams, while keeping the computational complexity low. The simplicity and low cost of the system make it an accessible and more practical alternative for many applications compared to previous methods. |
| Databáze: | OpenAIRE |
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