Real-time focal stack compositing for handheld mobile cameras

Mashhour Solh

doi:10.1117/12.2042609

7 March 2014 Real-time focal stack compositing for handheld mobile cameras

Mashhour Solh

Proceedings Volume 9020, Computational Imaging XII; 90200Z (2014) https://doi.org/10.1117/12.2042609
Event: IS&T/SPIE Electronic Imaging, 2014, San Francisco, California, United States

Abstract

Extending the depth of field using a single lens camera on a mobile device can be achieved by capturing a set of images each focused at a different depth or focal stack then combine these samples of the focal stack to form a single all-in-focus image or an image refocused at a desired depth of field. Focal stack compositing in real time for a handheld mobile camera has many challenges including capturing, processing power, handshaking, rolling shutter artifacts, occlusion, and lens zoom effect. In this paper, we describe a system for a real time focal stack compositing system for handheld mobile device with an alignment and compositing algorithms. We will also show all-in-focus images captured and processed by a cell phone camera running on Android OS.

Citation Download Citation

Mashhour Solh "Real-time focal stack compositing for handheld mobile cameras", Proc. SPIE 9020, Computational Imaging XII, 90200Z (7 March 2014); https://doi.org/10.1117/12.2042609

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