Fujitsu Laboritories Develops High-quality, Low-power H.264 Standard Video Compression Technology.Tokyo, Japan, Nov 17, 2005 - (JCNN JCNN Japan Corporate News Network ) - Fujitsu Laboratories Limited announced on November 14 the development of core circuitry technology for video compression Encoding digital video to take up less storage space and transmission bandwidth. See video codec and data compression. video compression - Compression of sequences of images. and decompression that features high-quality video processing Video processing techniques are used in video codecs, video players and other devices. For example—commonly only design and video processing is different in TV sets of different manufactures. and operation with world-class ultra-low power consumption of less than 100 milliwatts. The new technology enables prolonged recording of high-quality video for digital devices that employ flash memory or hard-disk drives (HDDs) for recording, such as digital cameras and video camcorders. Fujitsu's new video compression and decompression technology conforms to the latest H.264(1) international standard for video compression, which is expected to attract wide attention in the future for next-generation DVDs and terrestrial digital broadcasting Digital broadcasting is the practice of using digital data rather than analogue waveforms to carry broadcasts over television channels or assigned radio frequency bands. It is becoming increasingly popular for television usage (especially satellite television) but is having a for mobile devices. H.264 is more complex compared to former compression methods, and is known for requiring processing power that is approximately 10 times that which is required for MPEG-2(2). Technical obstacles existed to realize H.264 compression while maintaining high levels of compression performance and high-quality video, at low power levels that can be provided with even batteries. To perceive changes in moving images from the previous image shown, a function which requires the greatest processing power during compression, rather than searching the entire picture for changes, Fujitsu developed an algorithm that enables image changes to be determined while searching shrunken shrunk·en v. A past participle of shrink. shrunken Verb a past participle of shrink Adjective reduced in size Adj. 1. versions of the picture in stages. This method enables minimal calculation volume, ideal for use in large-scale integrated circuits Integrated circuits Miniature electronic circuits produced within and upon a single semiconductor crystal, usually silicon. Integrated circuits range in complexity from simple logic circuits and amplifiers, about 1/20 in. (1. (LSIs), and enables real-time H.264 compression of standard television images at less than 100 milliwatts. Additionally, Fujitsu developed an algorithm that enables control of compression levels, so that images for which image degradation The reduction of the inherent optimum potential of individual sensor systems caused by error in sensor operations, processing procedures or incorrect film handling. Reduction in quality caused by unavoidable factors not associated with the sensor system, i.e. is particularly obvious to human sight - such as faces or slow-moving objects - are continuously tracked, and those parts of the image are maintained at high definition and remain uncompressed. Fujitsu's new technology enables prolonged high-quality video recording using H.264 with battery-operated digital video devices. Copyright [c] 2005 Japan Corporate News Network. All rights reserved. |
|
||||||||||||||||
Printer friendly
Cite/link
Email
Feedback
Reader Opinion