Multiobjective Optimization for Reconfigurable Implementation of Medical Image Registration

Table 1

Design variables for FPGA-based architecture. Integer wordlengths are determined based on application-specific range information, and fractional wordlengths are used as parameters in the multiobjective optimization framework.

Architectural module	Design variable	Integer wordlength (IWL) (bits)	Fractional wordlength (FWL) range (bits)
Voxel coordinate transformation	Translation vector	7	[1, 32]
	Rotation matrix	4	[1, 32]
Partial volume interpolation	Floating image address	9	[1, 32]
Mutual histogram accumulation	Mutual histogram bin	25	[1, 32]