Accelerating image super-resolution regression by a hybrid implementation in mobile devices

Abstract

This paper introduces a new super-resolution algorithm based on machine learning along with a novel hybrid implementation for next generation mobile devices. The proposed super-resolution algorithm entails a multivariate polynomial regression method using only the input image properties for the learning task. Although it is widely believed that machine learning algorithms are not appropriate for real-time implementation, the paper in hand proves that there are indeed specific hypothesis representations that are able to be integrated into real-time mobile applications. With aim to achieve this goal, we take advantage of the increasing GPU employment in modern mobile devices. More precisely, we utilize the mobile GPU as a co-processor in a hybrid pipelined implementation achieving significant performance speedup along with superior quantitative interpolation results.