Competitive Real-Time Near Infrared (NIR) Vein Finder Imaging …
WEBMar 30, 2021 · The NIR imaging system of the developed vein finder in this study showed its capability as an efficient guiding device through real-time vein pattern recognition, for both sites. Improved captured vein images were observed, having 100% visibility of vein patterns on the dorsal hand site.
Vein Pattern Locating Technology for Cannulation: A Review of …
WEBAug 16, 2019 · The role of a compact infrared-sensitive camera in a vein finder is important in giving a clearer image of the light reflected or transilluminated by hemoglobin present in the blood. This image is the result of the reaction of hemoglobin in the blood with light that makes the vein looks darker against the skin surface .
WEBThe CMOS camera includes an infrared filter that must be moved prior to capturing images as this filter will filter the NIR light rays that is being leveraged to acquire the object image.
Fast and Accurate ROI Extraction for Non-Contact Dorsal Hand Vein ...
WEBMay 10, 2023 · In response to the difficulty of traditional image processing methods to quickly and accurately extract regions of interest from non-contact dorsal hand vein images in complex backgrounds, this study proposes a model based on an improved U-Net for dorsal hand keypoint detection.
Near Infrared Illumination Optimization for Vein Detection
WEBNov 4, 2022 · This study proposes a novel method for visualizing vein structures using a near-infrared (NIR) imaging technique enhanced with Hessian ridge detection. Several factors, including the wavelength of NIR light, square LED and ring LED arrangement and the effect of the diffuser and number of LEDs, were evaluated in the study.
Palm vein imaging using a polarization-selective metalens with …
WEBJul 17, 2024 · Using a narrowband vertical-cavity surface-emitting laser for illumination, we show that the system is well-suited for near-infrared palm vein imaging, an emerging modality for biometric ...
X-ray scintillator lens-coupled with CMOS camera for pre ... - PLOS
WEBFeb 11, 2022 · We present the design and characterization of an X-ray imaging system consisting of an off-the-shelf CMOS sensor optically coupled to a CsI scintillator. The camera can perform both high-resolution and functional cardiac imaging.
Fast and Accurate ROI Extraction for Non-Contact Dorsal Hand Vein ...
WEBMay 10, 2023 · Open Access Article. Fast and Accurate ROI Extraction for Non-Contact Dorsal Hand Vein Detection in Complex Backgrounds Based on Improved U-Net. by. Rongwen Zhang. 1, Xiangqun Zou. 2, Xiaoling Deng. 1,3,4, Ziyang Wang. 1, Yifan Chen. 1, Chengrui Lin. 1, Hongxin Xing. 1 and. Fen Dai. 1,*
Development of a Vein Detection Imaging System - ResearchGate
WEBApr 13, 2023 · Vein detection for use to provide imaging to assist in venipuncture can be performed using near-infrared light that captures backscattering of light, revealing the subcutaneous vein pathways.
Vein Pattern Locating Technology for Cannulation: A Review of …
WEBAug 16, 2019 · Vein Pattern Locating Technology for Cannulation: A Review of the Low-Cost Vein Finder Prototypes Utilizing near Infrared (NIR) Light to Improve Peripheral Subcutaneous Vein Selection for Phlebotomy. by. Cheng-Tang Pan. 1,2,†, Mark D. Francisco. 1,3,4,†, Chung-Kun Yen. 1, Shao-Yu Wang. 1 and. Yow-Ling Shiue. 3,* 1.