Abstract
We present a new method for using commodity graphics hardware to achieve real-time, on-line, 2D view synthesis or 3D depth estimation from two or more calibrated cameras. Our method combines a 3D plane-sweeping approach with 2D multi-resolution color consistency tests. We project camera imagery onto each plane, compute measures of color consistency throughout the plane at multiple resolutions, and then choose the color or depth (corresponding plane) that is most consistent. The key to achieving real-time performance is our use of the advanced features included with recent commodity computer graphics hardware to implement the computations simultaneously (in parallel) across all reference image pixels on a plane. Our method is relatively simple to implement, and flexible in term of the number and placement of cameras. With two cameras and an NVIDIA GeForce4 graphics card we can achieve 50–70 M disparity evaluations per second, including image download and read-back overhead. This performance matches the fastest available commercial software-only implementation of correlation-based stereo algorithms, while freeing up the CPU for other uses.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.