How do you calculate spatial resolution?
The size of the area viewed is determined by multiplying the IFOV by the distance from the ground to the sensor (C). This area on the ground is called the resolution cell and determines a sensor’s maximum spatial resolution.
What is the spatial resolution of SPOT satellite?
The service life for the constellation SPOT satellites is 10 years. The sixth SPOT satellite delivers multispectral (red, green, blue, and near-infrared) images in 6-meter resolution. Panchromatic images have a spatial resolution of 1.5 meters.
What is the typical spectral resolution of a multispectral sensor?
About NAIP Multispectral Imagery NAIP imagery is available in the United States and typically has three bands – red, green and blue. However, sometimes, there is a 4th near-infrared band available. NAIP imagery typically is 1m spatial resolution, meaning that each pixel represents 1 meter on the Earth’s surface.
What is multi spectral resolution?
Multispectral imaging captures image data within specific wavelength ranges across the electromagnetic spectrum. Multispectral imaging has also found use in document and painting analysis. Multispectral imaging measures light in a small number (typically 3 to 15) of spectral bands.
Which are the 4 types of raster resolution?
When working with imaged raster data, there are four types of resolution you might be concerned with: spatial resolution, spectral resolution, temporal resolution, and radiometric resolution.
How is spatial resolution calculated in CT?
The spatial resolution in a CT image is determined principally by the size and number of detector elements, the size of the X-ray focal spot, and the source-object-detector distances. In the UTCT ACTIS scanner, the source-to-detector distance and the sizes of the detector elements are fixed.
How many spectral bands does spot have?
three spectral bands
Imaging is performed in three spectral bands. The bands used are band B1 covering 0.50 to 0.59 m (green), band B2 covering 0.61 to 0.68 m (red) and band B3 covering 0.79 to 0.89 m (near infrared).
What are 5 spot features?
| Parameter | SPOT-1,-2,-3 | SPOT-5 |
|---|---|---|
| FOV (swath) per sensor | 4.13º (60 km) | 4.13º (60 km) |
| Location accuracy | approx. 350 m | approx. 50 m |
| S/C mass (at launch) | 1907 kg | 3000 kg |
| S/C size (main structure) | 2 m x 2 m x 4.5 m | 3.4 m x 3.1 m x 6 m |
What are the different spectral modes of spot?
SPOT 1, 2, and 3. The two spectral modes are panchromatic and multispectral. The panchromatic band has a resolution of 10 meters, and the three multispectral bands (G, R, NIR) have resolutions of 20 metres. They have a scene size of 3600 km 2 and a revisit interval of one to four days, depending on the latitude.
What is the resolution of SPOT 1?
SPOT 1 launched February 22, 1986 with 10 panchromatic and 20 meter multispectral picture resolution capability.
What is the spectral resolution of a dataset with multiple bands?
The spectral resolution of a dataset that has more than one band, refers to the spectral width of each band in the dataset. In the image above, a band was defined as spanning 800-810 nm. The spectral width or spectral resolution of the band is thus 10 nm.
How many spectral bands are there in a multispectral image?
The multispectral image is composed of 13 spectral bands; of which, bands including VIS, NIR, and SWIR are used for SSC estimation with a spatial resolution of 10 m.
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