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Presented here is an architecture for implenting a sub-pixel resolution edge detector based upon the second difference of a Gaussian filtering. A pipelining approach allows many simple operations to be performed in parallel across the video data stream so allowing a throughput at video rate, 10MHz. The output is intended describe edges in terms of an 8-bit strength and orientation as well as 8-bit Cartesian sub-pixel offsets giving a possible resolution of l/5Oth of a pixel edge position.

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