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Article type: Research Article
Authors: Kumar, Vikasa | Choudhury, Tanupriyab; * | Satapathy, Suresh Chandrac | Tomar, Ravib | Aggarwal, Architd
Affiliations: [a] Department of Computer Science and Engineering, Penn State University, Penn, USA | [b] Department of Informatics, School of Computer Science, University of Petroleum and Energy Studies (UPES), Dehradun, Uttarakhand, India | [c] KIIT Deemed to be University, Bhubaneswar, India | [d] Amity University, UttarPradesh, India
Correspondence: [*] Corresponding author: Tanupriya Choudhury, Department of Informatics, School of Computer Science, University of Petroleum and Energy Studies (UPES), Dehradun, Uttarakhand, India. E-mail: tanupriya1986@gmail.com.
Abstract: Recently, huge progress has been achieved in the field of single image super resolution which augments the resolution of images. The idea behind super resolution is to convert low-resolution images into high-resolution images. SRCNN (Single Resolution Convolutional Neural Network) was a huge improvement over the existing methods of single-image super resolution. However, video super-resolution, despite being an active field of research, is yet to benefit from deep learning. Using still images and videos downloaded from various sources, we explore the possibility of using SRCNN along with image fusion techniques (minima, maxima, average, PCA, DWT) to improve over existing video super resolution methods. Video Super-Resolution has inherent difficulties such as unexpected motion, blur and noise. We propose Video Super Resolution – Image Fusion (VSR-IF) architecture which utilizes information from multiple frames to produce a single high- resolution frame for a video. We use SRCNN as a reference model to obtain high resolution adjacent frames and use a concatenation layer to group those frames into a single frame. Since, our method is data-driven and requires only minimal initial training, it is faster than other video super resolution methods. After testing our program, we find that our technique shows a significant improvement over SCRNN and other single image and frame super resolution techniques.
Keywords: Image super resolution, video super resolution, principal component analysis, discrete wavelet transform, convolutional neural network
DOI: 10.3233/KES-190037
Journal: International Journal of Knowledge-based and Intelligent Engineering Systems, vol. 24, no. 4, pp. 279-287, 2020
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