MGSA-Type Computer-Generated Holography for Vision Training With Head-Mounted Display

Author

Qing-Long Deng ; Bor-Shyh Lin ; Chang, Hsuan T. ; Guan-Syun Huang ; Chien-Yue Chen

Author_Institution

Inst. of Photonic Syst., Nat. Chiao Tung Univ., Tainan, Taiwan

Volume

10

Issue

6

fYear

2014

fDate

Jun-14

Firstpage

433

Lastpage

437

Abstract

A computer-generated holography head-mounted display (HMD) for vision training is proposed in this study. Based on modified Gerchberg-Saxton algorithm (MGSA) to calculate the phase distribution of light wave and the position multiplexing, the images with fixation disparity or changed disparity are successfully coded as phase only function. After decryption and reconstruction, the left and the right images are transmitted to HMD for a trainee viewing the images with disparity changes and moderating the stereoacuity of both eyes, ranging from 32.24 arcsec to 2.14 arcmin. The images reconstructed with MGSA-type CGH present the relative diffraction efficiency about 86% and visibility 94%, which not only provide high-contrast image quality, and the changing disparity allows achieving the training effect.

Keywords

computer vision; computer-generated holography; helmet mounted displays; image coding; image reconstruction; light diffraction; stereo image processing; three-dimensional displays; HMD; MGSA-type CGH; MGSA-type computer generated holography; changed disparity; diffraction efficiency; eyes stereoacuity; fixation disparity; head mounted display; image coding; image decryption; image quality; image reconstruction; image transmission; light wave; modified Gerchberg-Saxton algorithm; phase distribution calculation; phase only function; position multiplexing; vision training effect; Convergence; Diffraction; Educational institutions; Image reconstruction; Muscles; Optical fibers; Training; Computer-generated holography; head-mounted display (HMD); stereo vision;

fLanguage

English

Journal_Title

Display Technology, Journal of

Publisher

ieee

ISSN

1551-319X

Type

jour

DOI

10.1109/JDT.2013.2276129

Filename

6576119