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More Image formation. Instantaneous field of view and ground resolution GRE = IFOV x H where IFOV is measured in radians H IFOV GRE.

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Presentation on theme: "More Image formation. Instantaneous field of view and ground resolution GRE = IFOV x H where IFOV is measured in radians H IFOV GRE."— Presentation transcript:

1 More Image formation

2 Instantaneous field of view and ground resolution GRE = IFOV x H where IFOV is measured in radians H IFOV GRE

3 Total field of view Image width = 2 x tan(TFOV/2) x H where TFOV is measured in degrees H

4 Image scan lines 3512 2 1 4

5 Image pixel array

6 Imaging array concept H

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9 Recording of values Energy measurements are converted into 8 or 10 bit for storage and transmission. This has the disadvantage of only recording certain discrete values and introduces ‘quantisation’ errors.

10 Converting data We know all about the sensor from pre-flight calibration So instead of actually finding the energy and then converting we do a straight conversion from the byte value to albedo This will be something like

11 Radiometric resolution 127 19 29 Bit 1 2 3 4 5 6 7 8

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