Snell & Wilcox, a provider of image processing, conversion and compression products for the professional film and television market, announced Protus Ph.C, a new video image conditioning system that allows providers of mobile TV services to “dramatically increase picture quality and/or reduce bandwidth requirements” for delivering content to wireless, Internet and Web delivery platforms. Compatible […]
Snell & Wilcox, a provider of image processing, conversion and compression products for the professional film and television market, announced Protus Ph.C, a new video image conditioning system that allows providers of mobile TV services to “dramatically increase picture quality and/or reduce bandwidth requirements” for delivering content to wireless, Internet and Web delivery platforms.
Compatible with virtually any video compression encoder and all compression formats, Protus Ph.C utilizes Emmy.Award-winning technologies from Snell & Wilcox to enable video content to be compressed more efficiently, according to the company. The resulting double-digit percentage bandwidth savings can be used to deliver higher quality images to consumers, or to free up bandwidth for the delivery of extra revenue-producing video channels, it claims.
Protus Ph.C works by applying a series of sophisticated image conditioning tools to video content prior to its compression and distribution over any type of platform. Derived from high-end broadcast and digital cinema applications, these tools include powerful noise reduction and motion compensated deinterlacing and scaling, which convert video to the correct scanning format, picture size, and aspect ratio required by mobile devices and computer screens.
The resulting output is not only in the right size, shape, and scanning format for delivery to mobile devices and Internet browsers, it is also virtually free from artifacts and image degradations. In addition to providing improved picture quality, Protus Ph.C delivers other quality benefits to viewers, the company said. For example, Protus Ph.C incorporates automated format conversion that eliminates the annoying black bars and blank spaces that occupy valuable real estate on the small screen display. Protus Ph.C, Snell & Wilcox says, “also vastly improves the display of low light scenes, often a problem on mobile screens, to ensure that mobile viewers receive optimal brightness levels on their display.”
One of the most significant features of the Protus Ph.C system is motion compensated deinterlacing. Most video is produced in an “interlaced” format, which means the even and odd scanning lines of the display are separated and appear at different times to create moving images on the screen. But virtually all mobile TV devices, computer monitors, and plasma/LCD TVs use a “progressive” scan technique, in which the lines in a video frame are scanned one by one from top to bottom. “Deinterlacing” is the process by which interlaced video is converted to a progressive format so it can be viewed on these types of screens.
Poor deinterlacing results in the creation of artifacts that cause compression encoders to perform less efficiently, as well as being annoying to viewers. Protus Ph.C uses Ph.C motion estimation technology to deinterlace video images at a quality level that the company says has previously been unachievable. This significantly reduces artifacts, enabling compression encoders to perform significantly more efficiently. In addition to the benefits of motion compensated deinterlacing, Protus Ph.C’s powerful noise reduction tools enable additional bandwidth savings.
Protus Ph.C allows mobile TV providers to optimize video content in advance of distribution to any type of mobile device or the Web, including Internet delivery. And because Protus Ph.C works in real time, it will enable a new generation of live broadcast video applications for 3G, DAB-IP, DVB-H, and many other types of wireless and wired networks, delivering a better viewing experience to viewers and allowing operators to provide a wider range of program choices within constrained bandwidths.