NASA’s Jet Propulsion Laboratory, Pasadena, California
Calibrate_Image calibrates images obtained from focal plane arrays so that the output image more accurately represents the observed scene. The function takes as input a degraded image along with a flat field image and a dark frame image produced by the focal plane array and outputs a corrected image. The three most prominent sources of image degradation are corrected for: dark current accumulation, gain non-uniformity across the focal plane array, and hot and/or dead pixels in the array. In the corrected output image the dark current is subtracted, the gain variation is equalized, and values for hot and dead pixels are estimated, using bicubic interpolation techniques.
This week's Question: This fall, Starship Technologies, an Estonia-based startup created by two Skype co-founders, will begin testing its autonomous delivery robot in Washington, D.C. Washington is the first U.S. municipality to approve...
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