Table 8: Hardware overheads of the edge-directed fixed-support-based architecture (System 2) (image size = 1280 × 1024, max disparity range = 120, window size = 11 × 11).

Design unitSlice LUTsSlice registersBlock RAMsDSP48EsFrequency
(69120)(69120)(148)(64)(MHz)

Edge Detection Unit (EDU)2812 (~4%)1008 (~3%)00134.6
ABDIF and BTA129 (~0.2%)000N/A
Tree Comparators1760 (~2.5%)329 (~0.5%)00174.3
Disparity Computation Unit (DCU)47331 (~68%)31863 (~46%)00109
Microblaze system and external Memory CONTROLLER7754 (~11%)8562 (~12%)30 (~20%)6 (~9%)161.2

Entire system66882 (~83.8%)41559 (~60%)30 (~20%)6 (~9%)100