| 摘要 |
PROBLEM TO BE SOLVED: To provide a convolution integral arithmetic unit suitable for rapidly producing a computer hologram capable of reproducing a reproduction image formed by reproduction points having different initial phases at various distances. SOLUTION: A plurality of element processors PE are practically cascaded. Each of the element processors PE is provided with a constant generation part 91A for outputting a propagator value generated based on a coordinate value Z and an initial phase value P, a multiplier 92 for outputting a multiplied value obtained by multiplying the propagator value by a luminance value I, an adder-subtractor 93 for outputting an added and subtracted value obtained by adding and subtracting the multiplied value and a hologram time-series signal PDin, and a register 94 for holding the input added and subtracted value to output it as a hologram time-series signal PDout. The hologram time-series signal PDout output from the register 94 of the cascaded element processor at the previous stage is input into the adder-subtractor 93 of the element processor at the subsequent stage as the hologram time-series signal PDin. COPYRIGHT: (C)2007,JPO&INPIT
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