Computer-assisted holographic display apparatus

A computer-assisted holographic-display method comprising the steps of:

• receiving an input image signal representing an object;
• calculating a diffraction pattern data with a first sampling density corresponding to the received input image signal;
• interpolating the diffraction pattern data to generate interpolated diffraction pattern data with an increased second sampling density;
• providing reference wave data;
• computing interference pattern data between the interpolated diffraction pattern data and reference wave data;
• providing a reproduction light;
• modulating the reproduction light by use of the interference pattern data, thereby displaying a holographic image of the object.

A computer-assisted holographic-display apparatus comprising:

• first computation means for receiving an input image signal representing an object and for computing corresponding diffraction pattern data with a first sampling density;
• second computation means coupled to said first computation means, for interpolating the diffraction pattern data to generate interpolated diffraction pattern data with an increased second sampling density;
• and
• modulated light forming means connected to said second computation means, for forming a holographic image of the object by use of the interpolated diffraction pattern data.

A computer-assisted holographic-display method comprising the steps of:

• receiving an input image signal representing an object;
• calculating a diffraction pattern data with a first sampling density corresponding to the received input image signal;
• interpolating the diffraction pattern data to generate interpolated diffraction pattern data with an increased second sampling density;
• and
• modulating light by use of the interpolated diffraction pattern data to form a holographic image of the object.