Design and evaluation of a light-field multi-wavelength pyrometer
Shengxian Shi, Linlin Sun, Yinsen Luan, Rui Wang, T. H. New
Abstract
This letter describes the design and implementation of a multi-wavelength light-field pyrometer, where six-channel radiation images were captured with one CMOS sensor. Such capability is achieved by placing a 2 × 3 filter array in front of the main lens of an unfocused light-field camera, such that discrete wavelength and radiation intensity can be simultaneously recorded. It demonstrates that through black-body furnace experiments, how multi-channel radiation images can be extracted from one raw light-field multispectral image, and how accurate 2D temperature distribution can be recovered by optimization algorithms.
Topics & Concepts
PyrometerOpticsWavelengthMultispectral imageLens (geology)OpacityImage sensorRadiationLight fieldMaterials scienceChannel (broadcasting)Optical filterOptoelectronicsComputer sciencePhysicsTemperature measurementArtificial intelligenceComputer networkQuantum mechanicsAdvanced Optical Imaging TechnologiesInfrared Target Detection MethodologiesCCD and CMOS Imaging Sensors