RGBvs multispectral vs hyperspectral

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To the Editor: DYNC1H1-related diseases have variable phenotypes, affecting the function of either the central or peripheral nervous system or sometimes both. Spinal muscular atrophy with predominant lower extremity (SMA-LED) is an autosomal dominant disease characterized by non-progressive early onset lower limb predominant weakness and wasting, mostly due to variants of the tail domain of the DYNC1H1 gene [1,2,3,4]. We present a case of 10-y-old girl with SMA-LED. Patient presented with a history of lower limb weakness noticed since early infancy. Childbirth was uneventful. The child had a history of global development delay. The patient had facial dysmorphism (Supplementary Fig. S1) and significant lower limb weakness and wasting of distal muscles of the foot. Power in the lower limb muscles was 3/5. Deep tendon reflexes were absent in the lower limbs. There was no upper limb or facial muscle weakness. The patient had a positive Gowers sign (Supplementary Fig. S1). The patient's creatinine phosphokinase (CK) enzyme level was 167 U/L. Brain magnetic resonance imaging (MRI) was suggestive of dilated ventricles (Supplementary Fig. S1). On electromyography (EMG), there were signs of chronic denervation. With physical examination and electrodiagnostic findings, the possibility of type 3 SMA was kept. MLPA for SMN1 was negative. Whole-exome sequence analysis revealed a pathogenic heterozygous missense mutation c.9142G > A (p. Glu3048Lys) detected in the DYNC1H1 gene in exon 47.

hyperspectralvs.multispectralremote sensing ppt

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by DK Li · 1999 · Cited by 457 — The PRISMS (Prevention of Relapses and Disability by Interferon-beta1a Subcutaneously in Multiple Sclerosis) trial was a double-blind, randomized, ...

2. Hyperspectral imagery consists of much narrower bands (10-20 nm). A hyperspectral image could have hundreds of thousands of bands. This uses an imaging spectrometer.

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Multispectralandhyperspectralremote sensing PDF

Human eyes see the reflected energy from objects in three channels: red, green and blue. We don’t have the luxury of seeing ultraviolet and infrared radiations on our own.

This can be done with multispectral and hyperspectral sensors.Visible (red, green and blue), infrared and ultraviolet are descriptive regions in the electromagnetic spectrum. We made up these regions for our own purpose – to conveniently classify them. Each region is categorized based on its frequency (v) /wavelength (?):

Multispectral imagingskin

Amabile S, Jeffries L, McGrath JM, et al. DYNC1H1-related disorders: a description of four new unrelated patients and a comprehensive review of previously reported variants. Am J Med Genet A. 2020;182:2049–57.

Congenital myopathies and muscular dystrophies should be kept as differentials. Although no cure is currently available, we advise that management be guided by presenting symptoms; each patient should receive a careful clinical evaluation for both the central and peripheral nervous systems.

There are hundreds more applications in the fields of agriculture, ecology, oil and gas, oceanography and atmospheric studies where multispectral and hyperspectral remote sensing are being used to better understand the world we live in.

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Multispectral imaging

Nearly one-third of patients may have impaired cognition and behavioral abnormalities; however, these are unrelated to neuromuscular weakness [3]. Other findings that may be observed are cortical migration anomalies, refractory epilepsy, ocular features such as congenital cataract strabismus, etc. [2,3,4].

1. Multispectral imagery generally refers to 3 to 10 bands that are represented in pixels. Each band is acquired using a remote sensing radiometer.

Multispectral vs hyperspectralremote sensing

Scoto M, Rossor AM, Harms MB, et al. Novel mutations expand the clinical spectrum of DYNC1H1-associated spinal muscular atrophy. Neurology. 2015;84:668–79.

Poirier K, Lebrun N, Broix L, et al. Mutations in TUBG1, DYNC1H1, KIF5C, and KIF2A cause malformations of cortical development and microcephaly. Nat Genet. 2013;45:639–47.

Multispectralandhyperspectral imaging

Multispectral vs HyperspectralHaving a higher level of spectral detail in hyperspectral images gives better capability to see the unseen. For example, hyperspectral remote sensing can distiguish between 3 minerals because of its high spectral resolution.

This precious and quickly obtained information allows to define precisely the area in need of an intervention. Therefore, the resources are used where they are needed and this management guarantee successful collection with cost-efficient surgical operations.

Multispectralcamera

This vital sector is always pleased to integrate new solutions built to improve the efficiency and results of collections. Being exposed to numerous stress factors, it is necessary to spot as soon as possible a lack of water or nutriments and the presence of parasites or other wild animals for example.

Thanks to a UAV equipped with an hyperspectral camera, this troubling factors can be spot early while already occurring but not being visible yet with the naked eye. The camera covers the entire field by scanning it. The disturbed areas will reflect certain wavelengths while the rest of the field won’t.

Hyperspectral and multispectral images have many real world applications. For example, hyperspectral imagery has been used to map invasive species and help in mineral exploration.

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Wander, A., Meena, A.K., Ghanghoriya, P.K. et al. Spinal Muscular Atrophy with Predominant Lower Extremity (SMA-LED) with Intellectual Disability and Dysmorphism. Indian J Pediatr 91, 414 (2024). https://doi.org/10.1007/s12098-023-04878-1

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Becker L-L, Dafsari HS, Schallner J, et al. The clinical-phenotype continuum in DYNC1H1-related disorders-genomic profiling and proposal for a novel classification. J Hum Genet. 2020;65:1003–17.