Compression of ray information in three-dimensional integral imaging

Ju-Seog Jang; Seokwon Yeom; Bahram Javidi

doi:10.1117/1.2148947

1 December 2005 Compression of ray information in three-dimensional integral imaging

Ju-Seog Jang, Seokwon Yeom, Bahram Javidi

Author Affiliations +

Optical Engineering, Vol. 44, Issue 12, 127001 (December 2005). https://doi.org/10.1117/1.2148947

Abstract

We present a method to compress ray information in three-dimensional (3-D) integral imaging (II) using the Karhunen-Loeve transform (KLT). Elemental images in II are highly correlated because they are picked-up by numerous lenslets, thus, the KLT can compress an integral image more effectively than 2-D ordinary images. In the hybrid coding scheme, the KLT is distinctly applied to disjoint subsets which are partitioned by a vector quantization (VQ). In the optical experiments, we show that 3-D image quality degradation is negligible if approximately 10% of eigenvectors with the largest eigenvalues are used. We also evaluate the quality of uncompressed images by signal-to-noise ratio (SNR) and peak-to-peak signal-to-noise ratio (PSNR). The presented coding scheme is shown to be better than JPEG (Joint Photographic Experts Group) for the lower bit rates in the II compression. Optical and numerical experiments are presented.

©(2005) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Ju-Seog Jang, Seokwon Yeom, and Bahram Javidi "Compression of ray information in three-dimensional integral imaging," Optical Engineering 44(12), 127001 (1 December 2005). https://doi.org/10.1117/1.2148947

Published: 1 December 2005

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available