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Related Experiment Video

Updated: Jun 12, 2026

How to Build a Laser Speckle Contrast Imaging (LSCI) System to Monitor Blood Flow
05:24

How to Build a Laser Speckle Contrast Imaging (LSCI) System to Monitor Blood Flow

Published on: November 11, 2010

A field-programmable gate array based system for high frame rate laser Doppler blood flow imaging.

H C Nguyen1, B R Hayes-Gill, S P Morgan

  • 1Electrical Systems and Optics Research Division, Faculty of Engineering, University of Nottingham, University Park, Nottingham, NG7 2RD, UK. eexhcn@nottingham.ac.uk

Journal of Medical Engineering & Technology
|June 24, 2010
PubMed
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This study introduces an embedded processing system on a field-programmable gate array (FPGA) for laser Doppler blood flow imaging, achieving high frame rates and accuracy. The system demonstrates superior performance, reduced noise, and faster imaging speeds compared to existing methods.

Area of Science:

  • Biomedical Engineering
  • Signal Processing
  • Embedded Systems

Background:

  • Laser Doppler blood flow imaging requires high-speed and accurate processing for real-time analysis.
  • Existing processing methods often face limitations in frame rate, accuracy, or resource utilization.

Purpose of the Study:

  • To develop and evaluate a novel embedded processing system using field-programmable gate arrays (FPGAs) for enhanced laser Doppler blood flow imaging.
  • To achieve high frame rates and accuracy in blood flow imaging while optimizing resource usage.

Main Methods:

  • Implementation of a general embedded processing system on an FPGA.
  • Utilization of mixed fixed-floating point calculations for accuracy and resource efficiency.
  • Integration with a laser line scanning system and a 64x1 photodetector array.

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Related Experiment Videos

Last Updated: Jun 12, 2026

How to Build a Laser Speckle Contrast Imaging (LSCI) System to Monitor Blood Flow
05:24

How to Build a Laser Speckle Contrast Imaging (LSCI) System to Monitor Blood Flow

Published on: November 11, 2010

Blood Flow Imaging with Ultrafast Doppler
05:57

Blood Flow Imaging with Ultrafast Doppler

Published on: October 14, 2020

A Novel Approach to Overcome Movement Artifact When Using a Laser Speckle Contrast Imaging System for Alternating Speeds of Blood Microcirculation
07:20

A Novel Approach to Overcome Movement Artifact When Using a Laser Speckle Contrast Imaging System for Alternating Speeds of Blood Microcirculation

Published on: August 30, 2017

Main Results:

  • Achieved a basic frame rate of 1 frame/second for 256x256 images using 1024 Fast Fourier Transform (FFT) points.
  • Demonstrated a root mean square deviation below 0.1% compared to double-precision floating-point implementations.
  • The FPGA-based system exhibited significantly higher performance, including reduced noise and improved imaging speed, than previously reported methods.

Conclusions:

  • The proposed FPGA-based embedded processing system offers a significant advancement in laser Doppler blood flow imaging.
  • The system provides a scalable solution for achieving high frame rates and accuracy, outperforming existing techniques.
  • The dedicated FPGA board facilitates efficient testing and validation of the advanced processing capabilities.