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Open AccessArticle
An Energy-Efficient Field-Programmable Gate Array (FPGA) Implementation of a Real-Time Perspective-n-Point Solver
by
Haobo Lv
Haobo Lv and
Qiongzhi Wu
Qiongzhi Wu *
School of Integrated Circuit and Electronics, Beijing Institute of Technology, Beijing 100081, China
*
Author to whom correspondence should be addressed.
Electronics 2024, 13(19), 3815; https://doi.org/10.3390/electronics13193815 (registering DOI)
Submission received: 20 August 2024
/
Revised: 18 September 2024
/
Accepted: 25 September 2024
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Published: 26 September 2024
Abstract
Solving the Perspective-n-Point (PnP) problem is difficult in low-power systems due to the high computing workload. To handle this challenge, we present an originally designed FPGA implementation of a PnP solver based on Vivado HLS. A matrix operation library and a matrix decomposition library based on QR decomposition have been developed, upon which the EPnP algorithm has been implemented. To enhance the operational speed of the system, we employed pipeline optimization techniques and adjusted the computational process to shorten the calculation time. The experimental results show that when the number of input data points is 300, the proposed system achieves a processing speed of 45.2 fps with a power consumption of 1.7 W and reaches a peak-signal-to-noise ratio of over 70 dB. Our system consumes only 3.9% of the power consumption per calculation compared to desktop-level processors. The proposed system significantly reduces the power consumption required for the PnP solution and is suitable for application in low-power systems.
Share and Cite
MDPI and ACS Style
Lv, H.; Wu, Q.
An Energy-Efficient Field-Programmable Gate Array (FPGA) Implementation of a Real-Time Perspective-n-Point Solver. Electronics 2024, 13, 3815.
https://doi.org/10.3390/electronics13193815
AMA Style
Lv H, Wu Q.
An Energy-Efficient Field-Programmable Gate Array (FPGA) Implementation of a Real-Time Perspective-n-Point Solver. Electronics. 2024; 13(19):3815.
https://doi.org/10.3390/electronics13193815
Chicago/Turabian Style
Lv, Haobo, and Qiongzhi Wu.
2024. "An Energy-Efficient Field-Programmable Gate Array (FPGA) Implementation of a Real-Time Perspective-n-Point Solver" Electronics 13, no. 19: 3815.
https://doi.org/10.3390/electronics13193815
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