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       Optical Spatial Filtration

Although Optical Spatial Filtration has been known for over 25 years, it has received little attention due to the lack of suitable devices with which to implement systems. Hudson Research has pioneered the use of interactive electro-optic devices to allow real-time operations on complex data streams in the Fourier Domain. Techniques have been developed which enable filters to be weighted for specific functions or they can be built as linear interactive devices. The drawing below shows a typical device. The dynamic range of these devices is at least 12 bits, and 16 bit dynamic range can be achieved in a properly structured system.    CONTACT US

Figure 1 Optical Spatial Filter

The following images show the results of the use of the filter of Figure 1.

     Figure 2:  Unprocessed                 and                Processed Images   



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