Electromagnetic wave phase/amplitude generation device, electromagnetic wave phase/amplitude generation method, and electromagnetic wave phase/amplitude generation program

An electromagnetic wave phase/amplitude generation method comprising:

• a radiation step of radiating electromagnetic waves of a random radiation pattern on a spatial frequency in which a state of the electromagnetic waves to be radiated for each divided region is determined to an imaging object;
• an imaging step of generating a captured image by imaging scattered electromagnetic waves that are electromagnetic waves generated when the imaging object scatters the electromagnetic waves of the radiation pattern radiated from the radiation step;
• and
• a generation step of generating information indicating at least a phase and amplitude of the electromagnetic waves from the imaging object by performing an arithmetic sparsity constraint operation according to sparsity of the imaging object on the basis of the captured image generated from the imaging step, information indicating the radiation pattern, and information indicating a signal of the imaging object.

An electromagnetic wave phase/amplitude generation program for causing a computer to execute:

• a radiation step of radiating electromagnetic waves of a random radiation pattern on a spatial frequency in which a state of the electromagnetic waves to be radiated for each divided region is determined to an imaging object;
• an imaging step of generating a captured image by imaging scattered electromagnetic waves that are electromagnetic waves generated when the imaging object scatters the electromagnetic waves of the radiation pattern radiated from the radiation step;
• and
• a generation step of generating information indicating at least a phase and amplitude of the electromagnetic waves from the imaging object by performing an arithmetic sparsity constraint operation according to sparsity of the imaging object on the basis of the captured image generated from the imaging step, information indicating the radiation pattern, and information indicating a signal of the imaging object.