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Nonlinear Diffusion at your Fingertips: Theory and Mobile Applications

Thürck, Daniel ; Kuijper, Arjan (2013):
Nonlinear Diffusion at your Fingertips: Theory and Mobile Applications.
pp. 807-812, ISPA 2013, DOI: 10.1109/ISPA.2013.6703847,
[Conference or Workshop Item]

Abstract

Through affordable smartphones and lower costs for mobile internet access, mobile communication by moving and still pictures has become a commonplace. However, while most phones offer a camera for taking pictures, the image processing capabilities are relatively sparse. The challenges that arise with real-time image handling are not yet countered by complex techniques. Because of the limited computation power, simple algorithms were used. In this paper, we will show that the technique of nonlinear diffusion can be used in (near) real-time on most smartphone's GPUs if being implemented in an OpenGL ES shader. The presented implementation is then used for several image-related tasks, namely denoising, deblocking and upscaling directly on the phone. As the performance evaluation shows, anisotropic diffusion offers a nice framework for complex mobile image handling in several arising problem areas.

Item Type: Conference or Workshop Item
Erschienen: 2013
Creators: Thürck, Daniel ; Kuijper, Arjan
Title: Nonlinear Diffusion at your Fingertips: Theory and Mobile Applications
Language: English
Abstract:

Through affordable smartphones and lower costs for mobile internet access, mobile communication by moving and still pictures has become a commonplace. However, while most phones offer a camera for taking pictures, the image processing capabilities are relatively sparse. The challenges that arise with real-time image handling are not yet countered by complex techniques. Because of the limited computation power, simple algorithms were used. In this paper, we will show that the technique of nonlinear diffusion can be used in (near) real-time on most smartphone's GPUs if being implemented in an OpenGL ES shader. The presented implementation is then used for several image-related tasks, namely denoising, deblocking and upscaling directly on the phone. As the performance evaluation shows, anisotropic diffusion offers a nice framework for complex mobile image handling in several arising problem areas.

Uncontrolled Keywords: Partial differential equations, Image processing, Mobile applications, General Purpose Computation on Graphics Processing Unit (GPGPU)
Divisions: 20 Department of Computer Science
20 Department of Computer Science > Interactive Graphics Systems
Event Title: ISPA 2013
Date Deposited: 12 Nov 2018 11:16
DOI: 10.1109/ISPA.2013.6703847
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