2 edition of Expanding stereo-disparity range in an FPGA-system while keeping resource utilisation low. found in the catalog.
Expanding stereo-disparity range in an FPGA-system while keeping resource utilisation low.
Divyang K. Masrani
Written in English
We present the design and implementation of a Field-Programmable Gate Array (FPGA) based dense stereo depth measurement system that is capable of handling a very large disparity range. The throughput of the system is 60 frames/second on 640 x 240 images. Image rectification and consistency check improve accuracy of the results. The system is based on the Local Weighted Phase-Correlation algorithm  which estimates disparity using a multi-scale and multi-orientation approach. Though FPGAs are ideal devices to exploit the inherent parallelism in many computer vision algorithms, their finite resource capacity poses a challenge when adapting a system to deal with large image sizes or disparity ranges. We utilise the temporal information available in a video sequence to design a novel architecture for the correlation unit to achieve correlation over a large range while keeping the resource utilisation very low as compared to a naive approach.
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|Number of Pages||90|
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This becomes a problem when adapting a system to deal with larger image sizes or, in the case of stereo disparity estimation, larger disparity ranges (parameter ranges in general). This paper describes preliminary work on a design to expand the disparity range and input image size of an existing FPGA-based stereo system  while not Expanding Stereo-Disparity Range in an FPGA-system While Keeping Resource Utilisation Low Divyang K.
Masrani Master of Applied Science Graduate Department of The Edward S. Rogers Sr. Department of Electrical and Computer Engineering University of Toronto We present the design and implementation of a Field-Programmable Gate Array (FPGA rows Implementation of Low Cost RF Based Attendance Management System Using A Real-Time Large Disparity Range Stereo-System using FPGAs Conference Paper in Lecture Notes in Computer Science 13 February with 43 Reads How we measure 'reads' In this paper, we discuss the design and implementation of a Field-Programmable Gate Array (FPGA) based stereo depth measurement system that is capable of handling a very large disparity range.
The system performs rectification of the input video stream and a left-right consistency check to improve the accuracy of the results and generates Graduate Students: W. James MacLean Current Grad Students.
Previous Grad Students. Jamin Islam Architecture and Implementation of a High Frame-Rate Stereo Vision System Siraj Sabihuddin Dense Stereo Reconstruction in a Field Programmable Gate Array Keir Mierle Open Source 3D Reconstruction From Video Joshua Worby Multi-Resolution Graph Cuts for Stereo-Motion Stereo Vision processing is a critical component of Augmented Reality systems that rely on the precise depth map of a scene to properly place computer generated objects with real life :// Masrani, D., MacLean, W.: Expanding disparity range in an fpga stereo system while keeping resource utilization low.
In: IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR ) - Workshops, vol. 3, pp. – () Google Scholar Ambrosch and coauthors have recently implemented SAD-based stereo matching using FPGAs .
They also implemented SAD, rank and census transform with flexible block size and disparity range by Stereo sensing is sensitive to the lack of texture and possible illumination artifacts, such as shadows and specular reflections, which are common in space environments.
Furthermore, the camera resolution limits the depth resolution (i.e., the smallest change in the depth of a surface that is discernible by the stereo system). Masrani, D.K., MacLean, W.J.: Expanding Disparity Range in an FPGA Stereo System While Keeping Resource Utilization Low. In: Proceedings of the IEEE Computer Society Conf.
on Computer Vision and Pattern Recognition, IEEE Computer Society Press, Los Alamitos () Google Scholar Video-rate stereo depth measurement on programmable hardware. in an FPGA Stereo System While Keeping Resource Utilization Low with the disparity range equal to 30, the system allows a FPGA based disparity map computation with vergence control Article in Microprocessors and Microsystems 34() November with 51 Reads How we measure 'reads' NSF staff is working virtually and continues to review Project Pitches in all areas of technology.
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