298 Estimations of the Performance among Colour, Black & White Laser Disk Units, S-VHSand Digital Video Tape Recorder.

The Best - Performance Digital Video Recorder JPEG 2000 DVR

JPEG 2000, the new ISO/ITU-T standard for still image coding, is about to be finished. Other new standards have been recently introduced, namely JPEG-LS and MPEG-4 VTC(H.264). This paper compares the set of features offered by JPEG 2000, and how well they are fulfilled, versus JPEG and MPEG-4 VTC(H.264). The study concentrates on compression efficiency and functionality set, while addressing ot...

NED: a Network-Enabled Digital Video Recorder

Recent advances in low-cost high-capacity disk drives, and low-cost high-quality video compression and decompression cards are enabling new types of digital video storage and delivery capabilities. One prominent example of this trend is the emergence of Digital (sometimes called Personal) Video Recorders (DVRs) in the home. DVRs enable the digitization, compression, storage, and time-shifted vi...

Black and White and Colour

Disk { Tape Joins : Synchronizing Disk and Tape

Today large amounts of data are stored on tertiary storage media such as magnetic tapes and optical disks. DBMSs typically operate only on magnetic disks since they know how to maneuver disks and how to optimize accesses on them. Tertiary devices present a problem for DBMSs since these devices have dismountable media and have very diier-ent operational characteristics compared to magnetic disks...

Coping with TiVo: Opportunities of the networked digital video recorder

Despite the progressive switch to digital TV, there has not been any significant change to the value chain of the TV industry. At the same time, the introduction of novel information and communication technologies, such as the digital video recorder (DVR) and efficient Peer-to-Peer (P2P) content distribution, have been regarded as a threat to the established broadcast business players. Previous...