Fast Path, Exact Path: One Library of Hardwired Operators for Streaming and Exact Canny Edge Detection on a Low-Cost FPGA

Hysteresis edge tracking, the final stage of Canny edge detection, follows edge chains of unbounded length and therefore resists single-pass streaming; FPGA designs either approximate it or dedicate separate labelling hardware to it. We show that a single library of hardwired 3x3 operators, each with an identical two-clock latency, delivers both a camera-rate approximation and exact hysteresis on a low-cost Artix-7 (XC7A35T). The fast path streams camera pixels through the operators and K local…

Source: arXiv cs.AR (Hardware Architecture), published 2026-10-27. The summary is the Hub's own; the full story is at the source. Report a rights or accuracy concern