Formulation of the Information Capacity of the Optical-mechanical Line-scan Imaging Process |
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Page 1
... SCAN IMAGING PROCESS Friedrich O. Huck and Stephen K. Park Langley Research Center SUMMARY The information capacity of the optical - mechanical line - scan imaging process is formulated by generally following the classical work of ...
... SCAN IMAGING PROCESS Friedrich O. Huck and Stephen K. Park Langley Research Center SUMMARY The information capacity of the optical - mechanical line - scan imaging process is formulated by generally following the classical work of ...
Page 2
... scan devices is particularly interesting because the quantity of data that is transmitted and the quantity of information that these data can contain are interrelated by two factors : the inevitable line - scan sampling process asso ...
... scan devices is particularly interesting because the quantity of data that is transmitted and the quantity of information that these data can contain are interrelated by two factors : the inevitable line - scan sampling process asso ...
Page 5
... scan vertical strips . The camera rotates in small steps between each vertical line scan until the entire object field of interest is scanned . The distance between object and camera is assumed to be large compared with the distance ...
... scan vertical strips . The camera rotates in small steps between each vertical line scan until the entire object field of interest is scanned . The distance between object and camera is assumed to be large compared with the distance ...
Common terms and phrases
aliased noise aliased signal associated data density average value azimuth sampling rate binits binits/sr bits bits/sr camera passband camera signal capacity h Contour plot contours of constant convolution data density hd electrical filters electro-optical systems electronic noise elevation and azimuth Fellgett and Linfoot Figure fixed data density formulated Fourier transform frequency response frequency spectrum frequency-response shapes function of sampling Gaussian given by equation Huck imaging system information capacity information density isoplanatism patch K/ne line-scan imaging process Linfoot ref log2 minus its average noise components number of quantization object radiance optical filters optical-mechanical line-scan devices optical-mechanical line-scan imaging photon noise plot of information power spectral density probability density function quantization interval quantization noise radiance distribution radiation random variable sampling rate 1/X scene radiance shot noise signal and noise signal-to-noise ratio statistical statistically independent steradian sufficient sampling three contours undersampling Wiener spectrum ΣΣ