Paper
1 June 2016 Three-dimensional integral imaging displays using a quick-response encoded elemental image array: an overview
Author Affiliations +
Abstract
Quick-response (QR) codes are barcodes that can store information such as numeric data and hyperlinks. The QR code can be scanned using a QR code reader, such as those built into smartphone devices, revealing the information stored in the code. Moreover, the QR code is robust to noise, rotation, and illumination when scanning due to error correction built in the QR code design. Integral imaging is an imaging technique used to generate a three-dimensional (3D) scene by combining the information from two-dimensional (2D) elemental images (EIs) each with a different perspective of a scene. Transferring these 2D images in a secure manner can be difficult. In this work, we overview two methods to store and encrypt EIs in multiple QR codes. The first method uses run-length encoding with Huffman coding and the double-random-phase encryption (DRPE) to compress and encrypt an EI. This information is then stored in a QR code. An alternative compression scheme is to perform photon-counting on the EI prior to compression. Photon-counting is a non-linear transformation of data that creates redundant information thus improving image compression. The compressed data is encrypted using the DRPE. Once information is stored in the QR codes, it is scanned using a smartphone device. The information scanned is decompressed and decrypted and an EI is recovered. Once all EIs have been recovered, a 3D optical reconstruction is generated.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
A. Markman and B. Javidi "Three-dimensional integral imaging displays using a quick-response encoded elemental image array: an overview", Proc. SPIE 9867, Three-Dimensional Imaging, Visualization, and Display 2016, 98671D (1 June 2016); https://doi.org/10.1117/12.2223022
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CITATIONS
Cited by 3 scholarly publications.
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KEYWORDS
Image compression

Image encryption

3D image processing

Integral imaging

3D image reconstruction

RGB color model

3D displays

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