Cost-efficient Active Illumination Camera For Hyper-spectral Reconstruction
Yuxuan Zhang, T.M. Sazzad, Yangyang Song, Spencer J. Chang, Ritesh, Chowdhry, Tomas Mejia, Anna Hampton, Shelby Kucharski, Stefan Gerber, Barry, Tillman, Marcio F. R. Resende, William M. Hammond, Chris H. Wilson, Alina, Zare, Sanjeev J. Koppal

TL;DR
This paper presents a low-cost, compact active illumination camera designed for hyperspectral imaging, demonstrating its effectiveness in plant root imaging and spectral reconstruction using a U-Net model, thus broadening application accessibility.
Contribution
Introduction of a cost-effective, easy-to-use active illumination camera with a trained spectral reconstruction model, enabling hyperspectral data acquisition without complex equipment.
Findings
Successfully reconstructed hyperspectral data from multi-spectral input.
Demonstrated applicability in plant root imaging.
Camera provides additional spectral information over RGB cameras.
Abstract
Hyper-spectral imaging has recently gained increasing attention for use in different applications, including agricultural investigation, ground tracking, remote sensing and many other. However, the high cost, large physical size and complicated operation process stop hyperspectral cameras from being employed for various applications and research fields. In this paper, we introduce a cost-efficient, compact and easy to use active illumination camera that may benefit many applications. We developed a fully functional prototype of such camera. With the hope of helping with agricultural research, we tested our camera for plant root imaging. In addition, a U-Net model for spectral reconstruction was trained by using a reference hyperspectral camera's data as ground truth and our camera's data as input. We demonstrated our camera's ability to obtain additional information over a typical RGB…
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Taxonomy
TopicsAdvanced optical system design · CCD and CMOS Imaging Sensors · Optical measurement and interference techniques
Methods*Communicated@Fast*How Do I Communicate to Expedia? · Softmax · Attention Is All You Need · Max Pooling · Concatenated Skip Connection · Convolution · U-Net
