Abstract: A computer-implemented method of processing image data to produce an output image is provided, where the method comprises receiving image data comprising a stack of images, captured at different times, of part or all of a sample region containing a sample; selecting from the stack of images a plurality of windows, each window comprising a respective stack of spatially-coincident sections of the images, where each window is processed to determine indicator values for test points representative of a likelihood of a part of said sample being present at a location of the sample region corresponding to the test point, where the indicator values are combined to produce an output image of the part or all of the sample region.

Abstract: Monolithic microwave integrated circuit (MMIC) technology is advantageously used to fabricate microwave circuitry for an antenna-converter system to enable an antenna and its associated converter circuits to be integrated together into a unitary package. Small reliable radio frequency (RF) circuits, polarization switch matrix circuits, intermediate frequency (IF) circuits and power and control circuits for the converter are manufactured and integrated onto a plurality of small area microwave circuit disks using MIC/MMIC technology. The plurality of converter circuit disks are sandwiched together and directly mounted flat against the back of the antenna to form a unitary package. The disks for the converter circuits are further sized such that the circuit disks fit within an envelope volume defined by the size and shape of the antenna.