Applicability of LED-Based Light Sources for Diabetic Retinopathy Detection in Retinal Imaging

A 380-1100nm spectrum matching light source with high spectral resolution, throughput, speed, and stability

“…It offers a full wavelength range (380nm to 1100nm) of spectral matching with high spectral power. The source can be a valuable tool for ambient sensor or image sensor calibration [8,15,23,24], display calibration, hyperspectral imaging, spectroscopy [3,4,16,24], healthcare [12,14], radiometry [2,18,19,21], diagnostics and biomedical-related applications [7,9,12,20,22], which also need to consider the ambient light or NIR light effects and simulate the detailed spectral profiles of arbitrary light sources with more extended wavelength range and high fidelity.…”

A Portable System for On-Site Medical Spectral Imaging: Pre-Clinical Development and Early Evaluation

“…Image contrast enhancement, based on spectral information and optimized spectral distribution (SPD), in particular [9], has been previously studied under optimal and conventional illumination [11], however, such illumination is unoptimized and thus, unsuitable for contrast enhancement. Contrary to prior practice, we propose computed illumination optimized for diverse features and tissues as an alternative to the commonly employed broadband light since the computed illumination has potentials to simplify in vivo examinations through enhanced image quality [12,13].…”

Spectral Video in Image-Guided Microsurgical Applications: Integrating Imaging Technology into the Clinical Environment and Ergonomic Considerations

“…The spectral cube is captured similarly to the filter-based imaging system, however, multiple narrow-band light sources replace the white light with multiple filters [15]. Available spectrally tunable light sources are straightforward to customize and allow to generate the designed SPD, typically challenging to achieve when using filters [16,17] Working principle of the spectral video camera used in this study is based on a three-CCD (3CCD) camera. 3CCD system solution uses three separate charge-coupled devices (CCDs), where each one receiving filtered red, green, or blue color ranges.…”