Holographic image generation

A method of to provide a computer-generated holography (CGH), the method comprising:

• sending, by a client device, information on a reconstruction beam to a server device;
• generating, by the server device, CGH data for an object based on the information on the reconstruction beam;
• and
• receiving, by the client device, the CGH data from the server device and reconstructing a holographic image of the object on a holographic image display unit using the reconstruction beam.

A method of to provide computer-generated holography (CGH), the method comprising:

• sending a request, by a client device, to a server device, wherein the request includes information on a reconstruction beam;
• receiving a response to the request, by the client device, from the server device, wherein the response includes CGH data and beam adjustment data that is responsive to the request;
• adjusting the reconstruction beam, by the client device, based on the beam adjustment data;
• and
• reconstructing a holographic image of the object, by the client device, on a holographic image display unit with the reconstruction beam.

A client device configured to provide a holographic image, the client device comprising:

• a holographic image display unit, configured to reconstruct the holographic image using computer-generated holography (CGH) data and a reconstruction beam;
• a transmitter, configured to transmit information on the holographic image display unit to a server device;
• and
• a receiver, configured to receive the CGH data from the server device, wherein the CGH data received from the server device is modified based on the information on the holographic image display unit.

A server device, configured to provide computer-generated holography (CGH) data to a client device including a holographic image display unit, wherein the client device is configured to reconstruct a holographic image using a reconstruction beam and to display the holographic image based on the CGH data, the server device including:

• a receiver, configured to receive information on the holographic image display unit from the client device on the reconstruction beam;
• a processor, configured to calculate the CGH data from three-dimensional image data and the information on the holographic image display unit;
• and
• a transmitter, configured to transmit the CGH data to the client device.