OPTICAL SENSORS DESCRIBED AS MULTISPECTRAL

Brand	Owner	Address	Description
HEADWALL PHOTONICS	HEADWALL PHOTONICS, INC.	580 Main Street marketing@headwallphotonics.com Bolton MA 01740	Optical sensors described as multispectral or hyperspectral for measuring reflected light across spectral ranges from 400 nanometers to beyond 2500 nanometers, for use in collecting and analyzing environmental image data pursuant to applications including but not limited to precision agriculture, geological research, food inspection, environmental monitoring, inspection of artifacts and historical documents, and inspection of infrastructure such as dams and bridges, not for medical use; Scientific and technical apparatus, namely, optical mirrors;PHOTONICS;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

A new approach to multispectral image compression where the intra- and cross-band correlations are jointly exploited in a surprisingly simple yet very effective manner. The key component of the algorithm is a bijection mapping of the original multispectral image into a virtual 2 dimensional scalar image. By optimally mapping the multispectral image set into a single 2 dimensional array and by subsequently applying a scalar image coding algorithm, the spatial correlation and the spectral correlation of the multispectral data set are jointly exploited. Based on the statistical characteristics of the multispectral data, the bijection mapping can be optimized to minimize the distortion introduced by the compression algorithm. The optimization reduces to the maximization of a function of the second-order statistics of the multispectral data. At high compression rates, the new algorithm outperforms traditional compression algorithms whenever the cross-band correlation is high and it yields comparable performance at low compression rates.