Authors:
Seiichi Gohshi
1
;
Sakae Inoue
2
;
Isao Masuda
2
;
Takashi Ichinose
2
and
Yoshika Tatsumi
2
Affiliations:
1
Kogakuin University, Japan
;
2
Fujitsu Connected Technologies Limited, Japan
Keyword(s):
Smartphone, Real-time Video Processing, Nyquist Frequency, Super Resolution.
Related
Ontology
Subjects/Areas/Topics:
Digital Audio and Video Broadcasting
;
Image and Video Processing, Compression and Segmentation
;
Multimedia
;
Multimedia and Communications
;
Multimedia Signal Processing
;
Multimodal Signal Processing
;
Telecommunications
Abstract:
Smartphones were developed as an advanced communication tool. Currently they are used in various applications.
The display is one of the most important features in smartphones. Compared with television (TV) and
cinema screens the display size of a smartphone is small. However, TV and film content is commonly enjoyed
on smartphone screens. Currently, the smartphone display is one of the most used displays for various kinds
of content. In the past it was thought that it would be difficult to recognize the resolution differences on small
displays. However, this is no longer the case. The resolution of smartphones have been steadily improving,
and high-definition television (HDTV) (1,920×1,080 pixels) viewing resolution support is common. Signal
processing is another way to improve resolution. Super resolution (SR) has become an interesting research
field and is applied to images and videos. SR is a technology for improving display resolution. Consequently,
SR is mainly studied for appli
cation to TV screens and computer displays. SR technology algorithms are complex
and a heavy load for a smartphone’s central or graphics processing unit (CPU/GPU). It is very difficult
to apply SR for real-time videos on smartphones. Consequently, there have been no reports in SR for smartphones.
This paper proposes a method for implementing real-time SR in smartphones. This method works for
real-time videos on a smartphone GPU with the developed software.
(More)