Apparatus for measuring texture realization characteristics of holographic images
AssigneeKorea Photonics Technology Institute
InventorsKwang Hoon Lee, Hoe Min Kim, Kyung Il Joo, Min Kyu Park
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Abstract
Disclosed is an apparatus for measuring texture characteristics of a holographic image that is reconstructed optically by a holographic display device. Provided is an apparatus for measuring texture characteristics of a holographic image, which measures texture characteristics of a holographic image that is reconstructed optically by a holographic display device.
Claims6
An apparatus for measuring texture characteristics of a holographic image that is output by a holographic display device, the apparatus comprising:
- a light-receiving unit configured to receive and sense light that is output by a light source within the holographic display device and that is diffracted by a spatial light modulator (SLM) within the holographic display device;
- a diffraction element disposed in front of the light-receiving unit in a direction in which light diffracted from the SLM is incident and configured to diffract the light diffracted from the SLM again;
- a rotation element having one end fixed to the SLM or having another end fixed to the light-receiving unit within a preset range from the SLM and configured to rotate the light-receiving unit in all directions in which the light-receiving unit is rotatable and to adjust a distance between the light-receiving unit and the SLM;
- a controller configured to adjust the distance of the rotation element or rotate the rotation element and to determine the texture characteristics of the holographic image that is output by the holographic display device by analyzing sensed sensing values of the light-receiving unit;
- and
- a memory unit configured to store original texture characteristics of the holographic image to be output by the holographic display device so that the controller determines the texture characteristics of the holographic image that is output by the holographic display device.
An apparatus for measuring texture characteristics of a holographic image that is output by a holographic display device, the apparatus comprising:
- a light-receiving unit configured to receive and sense light that is output by a light source within the holographic display device and that is diffracted by a spatial light modulator (SLM) within the holographic display device;
- a diffraction element disposed in front of the light-receiving unit in a direction in which light diffracted from the SLM is incident and configured to diffract the light diffracted from the SLM again;
- a rotation element having one end fixed to the SLM or having another end fixed to the light-receiving unit within a preset range from the SLM and configured to rotate the light-receiving unit in all directions in which the light-receiving unit is rotatable and to adjust a distance between the light-receiving unit and the SLM;
- a controller configured to adjust the distance of the rotation element or rotate the rotation element and to determine a bidirectional reflectance distribution function (BRDF) value or bidirectional scattering distribution function (BSDF) of the holographic image that is output by the holographic display device by analyzing sensed sensing values of the light-receiving unit;
- and
- a memory unit configured to store an original BRDF value or BSDF value of the holographic image to be output by the holographic display device so that the controller determines the texture characteristics of the holographic image that is output by the holographic display device.
Dependencies are inferred from the claim text.