High-Quality Image Processing Technologies for 4K Ultra HD TVs

Toshiba has developed image processing technologies that transform high-definition (HD) video contents such as TV programs and Blu-ray Disc™ contents to 4K ultrahigh-definition (Ultra HD: 3 840 × 2 160 pixels) resolution with four times the pixel count of HD resolution.

Although 4K Ultra HD TVs have the ability to display images with subtle changes in light and dark shades and a high degree of detail, video cameras do not have comparable performance, causing deterioration of video quality in terms of texture and gloss. We have developed texture and gloss restoration technologies to recover the lost details of texture and gloss to take full advantage of 4K Ultra HD TV.

Processing result applying texture restoration technology

The texture restoration technology generates fine texture patterns based on intensity variations in input images and adds them to the upconverted input images. This technology can recover up to 75% of the highfrequency components lost from input images. The gloss restoration technology extracts and enhances reflection components. Our newly developed technologies can correctly detect objects of the same color even in very noisy images and enhance the extracted components by three times without causing artificial color changes.

These technologies were incorporated into our 4K Ultra HD TVs launched in June 2013.

Blu-ray Disc™ and Blu-ray™ are trademarks of the Blu-ray Disc Association.

Processing result applying gloss restoration technology