AXI	Advanced extensible interface [27]
AT	Active tag—indicates whether a component is still active
CCA	Connected components analysis
DT	Data table—accumulates the component feature vector
FIFO	First in first out buffer
FPGA	Field programmable gate array
IFV	Initial feature vector—the feature vector of a single pixel
LUT	Look up table—the logic element on an FPGA
MT	Merger table—indicates equivalent labels, for obtaining the representative label
RAM	Random access memory
RB	Row buffer—caches labels assigned for use in the following row