Electronics and Telecommunications Research Institute

Kyungpook National University Industry-Academic Cooperation Foundation

Joong Ki Park

Kee Hoon Hong

Ki Hong Choi

Jin Woong Kim

Hak-Rin Kim

Kyung Ae Moon

Eun Young Chang

Hyun Eui Kim

Tae One Kim

Tae-Hyun Lee

Soo Hyun Lee

A method and an apparatus for transmitting hologram data in binocular holographic display are disclosed. The method comprises obtaining left-eye gaze information and right-eye gaze information on a viewing window plane of the binocular holographic display based on pupil images of a user of the binocular holographic display; determining a left-eye hologram region and a right-eye hologram region on a hologram plane of the binocular holographic display based on the left-eye gaze information, the right-eye gaze information, and distance information between the viewing window plane and the hologram plane; and creating transmission hologram data corresponding to one binocular hologram region including an overlap hologram region, in which the left-eye hologram region and the right-eye hologram region overlap each other, based on input hologram data.

Method and apparatus for transmitting hologram data in binocular holographic display

A holographic camera system includes an imaging lens, a polarizer configured to circularly polarize light incident from the imaging lens, a geometric phase lens with a phase delay of λ/4, and an image sensor configured to replicate an interference pattern through self-interference of light output from the geometric phase.

Holographic camera system

Disclosed herein an apparatus and method for estimating a phase retarder and method of manufacturing the phase retarder using the same. The apparatus includes: a polarization element configured to output an incident light as a linear polarization and to make the linear polarization incident onto a phase retarder to be tested; a polarization image acquisition module equipped with a plurality of polarized pixels receiving an emitting light that is output from the phase retarder, on which the linear polarization is incident, and configured to obtain a polarization image based on the emitting light that is modulated in the polarized pixels; and a processor configured to evaluate quality of the phase retarder based on uniformity of a brightness value between polarized pixels of the polarization image. The polarized pixels modulate the emitting light based on a plurality of transmission angles and detects the modulated emitting light.

Apparatus and method for estimating a phase retarder and method of manufacturing the phase retarder using the same

Provided is a hologram generation method including receiving three-dimensional (3D) data information, determining a first projection position onto which the 3D data information is projected on a hologram plane corresponding to a first spatial light modulator (SLM), and a second projection position onto which the 3D data information is projected on a hologram plane corresponding to a second SLM, generating a first Fresnel zone plate (FZP) pattern corresponding to the first projection position, and determining the first FZP pattern to be an FZP pattern corresponding to the second projection position.

Hologram generation method and apparatus

Growing community of inventors

Daejeon, South Korea

Joong Ki Park