An Improved NMS-Based Adaptive Edge Detection Method and Its FPGA Implementation

Table 4

System running duration.

Algorithm	Platform	Image size	Uptime
Adaptive threshold algorithm in [21]	Cyclone II, working frequency: 50 MHz	512 × 512 × 8 bits	0.0313 s
Simple Canny algorithm in [22]	Virtex-5, working frequency: 100 MHz	512 × 512 × 8 bits	0.0287 s
The proposed algorithm based on FPGA	Cyclone IV, working frequency: 50 MHz	640 × 480 × 8 bits	0.0245 s