![]() ![]() ![]() ![]() LEDs offer significant advantages over traditional halogen light sources including compactness, longer lifetimes and greater control of the emission spectrum. The new COBRA MultiSpec option offers an ideal solution for hyperspectral applications including currency inspection, pharmaceutical analysis, food sorting, grading and analysis, recycling and print inspection.Īdoption of LED technology for hyperspectral imaging applications is rapidly increasing. For applications covering an extended spectrum, the COBRA MultiSpec can be developed in configurations of up to twelve wavelengths from 365nm -1700nm. The spectrum is well-matched to the highly compact and flexible Specim FX10, for example, or machine vision cameras utilizing the latest SONY IMX174 Sensor. ProPhotonix has developed this hyperspectral line light as an ideal light source for any hyperspectral line scan camera operating in the visible to near-infrared spectrum. Successful hyperspectral imaging requires careful wavelength selection to cover the required spectrum and homogenous light to ensure high quality imaging. With a spectral range from 400-1000nm and excellent spatial and spectral uniformity, this new option provides an excellent solution for hyperspectral applications. SALEM, NH / ACCESSWIRE / Janu/ ProPhotonix Limited, (AIM:PPIX)(OTC PINK:STKR), a designer and manufacturer of LED illumination systems and laser diode modules with operations in Ireland and the United Kingdom, is pleased to announce the addition of a new hyperspectral LED line light to its COBRA™ MultiSpec platform. Scientific cameras certainly have their abilities and value but the modified consumer cameras are proving their abilities and usefulness as well.New high-performance hyperspectral light source with a spectral range from 400 - 1000nm With the advances and availability of new filters to modify a consumer camera I think the gap is closing. The Canon set is on the left of the above image and the RedEdge set is on the right. Can you tell which image set came from a near $7000 camera and which came from a camera that cost under $200? The results are very similar especially in terms of sensitivity. The image sets were processed with Pix4D Pro with the only difference being a slight modification to the NDVI formula with the Canon to account for the NIR contamination in the red channel. The flight with the Canon camera was flown within five minutes of landing with the RedEdge camera. The images were obtained on the same day at around solar noon. The scientific camera used was the Micasense RedEdge 3( )īoth sets of camera images were calibrated against reflectance panels with known values. The consumer camera used was the Canon S100 with the internal IR filter removed and replaced with the MidOpt DB 660/850 filter( ) It is calculated by dividing the difference in the near-infrared and red color bands by the sum of near-infrared and red bands for each pixel. It is often used in agriculture to measure general crop health and changes. NDVI is a vegetation index that uses a numerical indicator using visible and near-infrared bands to help analyze remote sensing measurements. I wanted to see if it was possible to get meaningful and comparable NDVI data from an affordable consumer grade camera vs a scientific multispectral camera and if the difference in price was really worth it. This note is related to NDVI only as the modified consumer camera tested only has two bands to compare with(Red and NIR). I wanted to share some of my results in comparing a modified consumer camera with a scientific grade multispectral camera when evaluating plant health with NDVI. ![]()
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