An Efficient FPGA Implementation of Optimized Anisotropic Diffusion Filtering of Images

Table 4

Comparison showing resource utilization of the various optimized hardware architectures for image resolution 150 × 150 implemented in Virtex-5 LX110T OpenSPARC Evaluation Platform [28] and Spartan 6 IVK [29] realizing bilateral [12] and anisotropic diffusion filtering.

Percentage utilization	⁢Image size (150 × 150)
	Virtex-5 LX110T OpenSPARC FPGA (utilized/total number); (anisotropic diffusion)	Fully parallel and separable single dimensional architecture (bilateral filter) for the same OpenSPARC device	Avnet Spartan 6 industrial video processing kit; (anisotropic diffusion)
Occupied slices	5225/17280	6342 and 3144	3810/23038
	(30%)	(37% and 18%)	(16%)
Slice LUTs	14452/69120	11689 and 8535	11552/92152
	(20%)	(17% and 12%)	(12%)
Block-RAM/FIFO/RAMB8BWERs	1/148	22 and 22	2/536
	(1%)	(15% and 15%)	(1%)
Flip flops	17309/69120	16167 and 5440	15214/69120
	(25%)	(23% and 8%)	(22%)
Bonded IOBs	46/640	1 and 1	46/396
	(7%)	(1% and 1%)	(11%)
Mults/DSP48Es/DSP48A1s	55/64	0 and 0	81/180
	(85%)	(0% and 0%)	(45%)
BUFGs/BUFCTRLs	1/32	4 and 4	1
	(3%)	(13% and 13%)	(3%)