PMID- 34725577 OWN - NLM STAT- MEDLINE DCOM- 20211210 LR - 20211214 IS - 2168-2372 (Electronic) IS - 2168-2372 (Linking) VI - 9 DP - 2021 TI - FPGA-Based Two-Dimensional Matched Filter Design for Vein Imaging Systems. PG - 1800510 LID - 10.1109/JTEHM.2021.3119886 [doi] LID - 1800510 AB - Venipuncture is a common medical procedure. The use of augmented reality-based assistive devices can improve the first puncture success rate in patients with poor vascular filling. In order to improve the image rendering quality and speed of auxiliary equipment, this study develop a two-dimensional matched filtering algorithm on a Field Programmable Gate Array (FPGA) in a near-infrared vein imaging system, which use parallel processing to offer real-time response and is designed as a small handheld portable device. A customized dorsal hand vein image library with 200 images captured from 120 participants is used to analyze the effects of convolution kernel parameters and exposure time on vascular imaging with different depths, and the correlation model between these parameters and vascular depth are constructed. We use the Tenengrad, variance, Laplace smoothness and standard deviation as evaluation indicators, and compare our algorithm with three other related studies. Experimental results show that the rendering quality of our proposed algorithm is significantly higher than other algorithms. In addition, the rendering speed of our algorithm can reach 66 fps, which is twice faster than the current fastest algorithm. FAU - Xiang, Wenxin AU - Xiang W AD - College of Medicine and Biological Information EngineeringNortheastern University Shenyang 110819 China. FAU - Li, Deliang AU - Li D AD - College of Medicine and Biological Information EngineeringNortheastern University Shenyang 110819 China. FAU - Sun, Jiabing AU - Sun J AD - College of Medicine and Biological Information EngineeringNortheastern University Shenyang 110819 China. FAU - Liu, Jiawei AU - Liu J AD - College of Medicine and Biological Information EngineeringNortheastern University Shenyang 110819 China. FAU - Zhou, Guowei AU - Zhou G AD - College of Medicine and Biological Information EngineeringNortheastern University Shenyang 110819 China. FAU - Gao, Yuan AU - Gao Y AD - Nursing SchoolChina Medical University, Shenbei Shenyang 110122 China. FAU - Cui, Xiaoyu AU - Cui X AD - College of Medicine and Biological Information EngineeringNortheastern University Shenyang 110819 China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20211014 PL - United States TA - IEEE J Transl Eng Health Med JT - IEEE journal of translational engineering in health and medicine JID - 101623153 SB - IM MH - *Algorithms MH - Diagnostic Imaging MH - *Hand MH - Humans MH - Veins/diagnostic imaging PMC - PMC8555873 OTO - NOTNLM OT - Field programmable gate array (FPGA) OT - infrared image OT - matched filter OT - vein extraction OT - vein imaging EDAT- 2021/11/03 06:00 MHDA- 2021/12/15 06:00 PMCR- 2021/10/14 CRDT- 2021/11/02 06:18 PHST- 2021/05/26 00:00 [received] PHST- 2021/08/31 00:00 [revised] PHST- 2021/10/05 00:00 [accepted] PHST- 2021/11/02 06:18 [entrez] PHST- 2021/11/03 06:00 [pubmed] PHST- 2021/12/15 06:00 [medline] PHST- 2021/10/14 00:00 [pmc-release] AID - 1800510 [pii] AID - 10.1109/JTEHM.2021.3119886 [doi] PST - epublish SO - IEEE J Transl Eng Health Med. 2021 Oct 14;9:1800510. doi: 10.1109/JTEHM.2021.3119886. eCollection 2021.