Image Super-Resolution via Block Extraction and Sparse Representation

Valentin Alvarez Ramos,Volodymyr Ponomaryov,Yuriy V. Shkvarko,Rogelio Reyes Reyes

IEEE Latin America Transactions（2017）

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摘要

Super-Resolution (SR) has many applications in several issues of the image processing by obtaining High-Resolution (HR) images from Low-Resolution (LR) images. In this paper, a SR technique that can increase the resolution in images of different nature is proposed. Our approach in obtaining SR image, first uses Lanczos interpolation of initial LR image, then edge features are extracted via convolu...

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关键词

Image resolution,Matching pursuit algorithms,Principal component analysis,Feature extraction,Dictionaries,Discrete wavelet transforms,IEEE transactions

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