What are the four resolutions of remote sensing?
Remotely sensed images are generated based on four different types of resolutions:
- Spectral.
- Spatial.
- Temporal.
- Radiometric.
What is resolution of a sensor?
Resolution. The sensor resolution or measurement resolution is the smallest change that can be detected in the quantity that it is being measured. The resolution of a sensor with a digital output is usually the numerical resolution of the digital output.
What is the resolution of the AWIS sensor?
AWiFS covers a 740-km orbital swath at a resolution of 56 meters with a 5-day repeat cycle.
What does 16 bit resolution mean?
A 12-bit digital value can represent 4096 (212) different numbers. A 16-bit digital value can represent 65536 (216) different numbers. This gives a voltage resolution of 20/4096 or 0.00488 volts per bit (4.88 mV/bit).
What is sensor resolution with example?
According to the dictionary, resolution is defined as the act or process of separating into parts. So, for example, if you take a standard office ruler, the divisions are in millimetres and centimetres, and the best “resolution” is 1 millimetre.
How do you find the resolution of a sensor?
Calculate the fraction of the 5V input range that is used by the sensor. Then multiply this value by the number of steps used by the AD board on the interface. Next, take the sensor range and divide it by the number of steps you have available at the full scale range. This is the resolution of the sensor.
What is LISS III image?
Linear Imaging Self-Scanning Sensor 3- LISS III is a remote sensing satellite camera from ISRO, India. The LISS – III camera provides multispectral data in 4 bands. The spatial resolution for visible (two bands) and near infrared (one band) is 23.5 meters with a ground swath of 141 kms.
What is GREY scale in remote sensing?
A panchromatic image consists of only one band. It is usually displayed as a grey scale image, i.e. the displayed brightness of a particular pixel is proportional to the pixel digital number which is related to the intensity of solar radiation reflected by the targets in the pixel and detected by the detector.
