Improvement of Luminance Isotropy for Convolutional Neural Networks-Based Image Super-Resolution

被引：1

作者：

Urazoe, Kazuya ^{[1
]}

Kuroki, Nobutaka ^{[1
]}

Kato, Yu ^{[1
,2
]}

Ohtani, Shinya ^{[1
,3
]}

Hirose, Tetsuya ^{[1
,4
]}

Numa, Masahiro ^{[1
]}

机构：

[1] Kobe Univ, Grad Sch Engn, Kobe, Hyogo 6578501, Japan

[2] EIZO Corp, Haku San, Japan

[3] Toyota Motor Co Ltd, Toyota, Japan

[4] Osaka Univ, Grad Sch Engn, Suita, Osaka, Japan

来源：

IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES | 2020年 / E103A卷 / 07期

关键词：

super-resolution; resolution enhancement; convolutional neural network; isotropy; deep learning;

D O I：

10.1587/transfun.2019EAL2168

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

Convolutional neural network (CNN)-based image superresolutions are widely used as a high-quality image-enhancement technique. However, in general, they show little to no luminance isotropy. Thus, we propose two methods, "Luminance Inversion Training (LIT)" and "Luminance Inversion Averaging (LIA)," to improve the luminance isotropy of CNN-based image super-resolutions. Experimental results of 2 x image magnification show that the average peak signal-to-noise ratio (PSNR) using Luminance Inversion Averaging is about 0.15-0.20 dB higher than that for the conventional super-resolution.

引用

页码：955 / 958

页数：4

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