NTT DoCoMo Inc and Morpho Inc jointly developed a technology to enlarge and enhance the quality of video content for mobile phones.
The technology can reduce noises and flickers generated when video content is displayed full-screen on a mobile phone and realize vivid and sharp images, the companies said.
The technology can enlarge 320 x 240 resolution video content to a size four times larger at 640 x 480 pixels and allows users to enjoy higher quality video. If the technology is incorporated in a mobile phone, 1seg and highly-compressed video content such as "YouTube" video can be enjoyed at a higher quality compared with the current level. The two companies are aiming at introducing the technology in handsets within 2009.
The new technology incorporated a mechanism to reduce distortion caused by encoding, such as block noises and mosquito noises generated by the compression of the video content. Because the existing image enlargement technology enlarges video without reducing such distortion generated in the data transmission process, the video sometimes blurs, according to the companies.
The new technology can also realize video in which the outlines of key individuals and objects look refined to the human eye because it implements more accurate image correction processing while maintaining the outlines of people and objects in the video.
DoCoMo is currently offering handset models featuring a full-wide VGA (480 x 854 pixels) LCD in the market, but the majority of video provided by 1seg, "i-motion" and other video services is QVGA (320 x 240 pixels). DoCoMo and Morpho developed this image enlargement technology because the resolution of videos provided through those services sometimes does not meet the resolution that the handset can display, they said.
The two companies are planning to introduce this image enlargement technology at CEATEC JAPAN 2008, which will take place at Makuhari Messe in Chiba Prefecture, Japan, from Sept 30 to Oct 4, 2008.