OE Letters

Dual camera-based split shutter for high-rate and long-distance optical camera communications

[+] Author Affiliations
Willy Anugrah Cahyadi, Yong-hyeon Kim, Yeon-ho Chung

Pukyong National University, Department of Information and Communications Engineering, 45 Yongso-Ro, Nam-Gu, Busan 48513, Republic of Korea

Opt. Eng. 55(11), 110504 (Nov 23, 2016). doi:10.1117/1.OE.55.11.110504
History: Received September 23, 2016; Accepted November 1, 2016
Text Size: A A A

Abstract.  Smartphones have been very versatile communication devices. Cameras fitted in smartphones are primarily used to capture photographs and for relevant multimedia functions. Recently, smartphone cameras have been studied for short-range wireless communications. Camera-based optical wireless communication, termed optical camera communication (OCC), is a form of visible light communication. In the OCC, a camera is employed as the receiver, while either a light emitting diode or a liquid crystal display (LCD) is used as the transmitter. This paper proposes a downlink OCC scheme with a dual camera (receiver) and an LCD (transmitter) is employed, using a unique capture method called split shutter method. The split shutter method combined with dual camera offers a significantly increased capture rate as well as increased coverage distance. Experiments were conducted to verify the proposed dual camera-based split shutter OCC scheme. Compared with a standard camera shutter, it is found that the proposed method effectively increases the transmission rate by a factor of two under identical experimental conditions, achieving a maximum of 11,520 bits per second and a distance of up to 2 m using a 1280×720  pixels camera resolution. When compared with conventional rolling shutter OCCs, the proposed method offers four times farther the coverage distance at an identical resolution. It is also demonstrated that the data rate can be further increased when a larger number of transmitters are employed.

Figures in this Article
© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Willy Anugrah Cahyadi ; Yong-hyeon Kim and Yeon-ho Chung
"Dual camera-based split shutter for high-rate and long-distance optical camera communications", Opt. Eng. 55(11), 110504 (Nov 23, 2016). ; http://dx.doi.org/10.1117/1.OE.55.11.110504


Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement
  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.