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Whether you are just starting to investigate the latest digital media equipment or have been working with the Teranex team since inception, we want to provide the best support possible.
Peruse the following white papers for information on many of the processes today´s digital media professional manages including DTV format conversion, Digital Cinema, compression, 3:2 Pull-down and De-Interlacing. If you are unable to find the information you are looking for, please feel free to contact us [link] and we´ll do our best to help you.
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APPLICATIONS
Video Pre-Compression Processing & Bit Conservation
Content providers are faced with an ever-increasing demand to provide their content in multiple formats, compressions standard and bit-rates with a fine line being drawn between acceptable video quality and lower bit-rates providing more economy in serving the media. There is also a growing distribution chain over multiple different delivery methods - each requiring different bit rates and associated quality levels. And, source content itself can take many formats. The solution to this problem is a video pre-processor which accommodates the various film and/or video based material; understands the varying possible output formats and resolutions; and provides powerful noise reduction processing to enable the downstream processing to be minimized and the resultant compressed video quality to be maximized.
Using the Teranex Mini with Apple Final Cut Pro
This application note describes how to adjust the Capture Setting in Apple Final Cut Pro when using the Teranex Mini In-Line.
Using the Teranex Mini with Avid Systems
This application note describes how to adjust the capture timecode in an Avid system when using the Teranex Mini In-Line.
Using the Teranex Mini with Adobe Premier Pro
This application note describes how to adjust the Capture Setting in Adobe Premier Pro when using the Teranex Mini In-Line.
Teranex Video Processing and HQV
The most recent Teranex white paper discusses in detail all of the key factors in evaluating interlace to progressive conversion systems and noise reduction systems. It discusses the unique features that Teranex offers and explains why they are superior to competitive approaches. This is a must-read for anyone in the market for a format converter.
DTV Format Conversion - A Buyer´s Guide
As the FCC deadlines for broadcast of Digital Television (DTV) arrive, broadcasters are faced with the challenge of integrating High Definition Television (HDTV) programming into their existing NTSC or 601 plants. Read about format conversion basics, DTV system solutions, format converter selection criteria, de-interlacing and re-sampling, and getting the colors right.
Film Sequence Detection and Removal in DTV Format and Standards Conversion
One of the more challenging tasks in DTV format and standards conversion is the handling of material that was originated on 24-frame film and then converted to a 30-frame video format. This process is known as 3:2 Pull-down, or more appropriately as 2:3 Pull-down. There are challenges faced in dealing with this type of material and some of the methods used to detect and correct these problems so they do not become "enhanced" in a conversion process. These sequences can also be removed as an alternative to a temporal rate conversion, when converting to a 24-frame vido format such as 1080p24.
Issue Faced in DTV Up-Conversion - "Making Something Out of Nothing"
In the transition from standard definition (SD) to high definition (HD) television, broadcasters are faced with a need for HD programming for the new DTV channels. One solution is to up-convert existing SD program feed to HD - a process that will also remain useful for future broadcast of archival SD material. There are several different techniques available for up-conversion; a new technique; and issues faced in colorspace and aspect ration conversion in a DTV up-conversion.
Combined Upconverter & Pre-Compression Processor For Best End-to-End Picture Quality
One of the biggest broadcast challenges in the transition to DTV is providing a sufficiently high quality signal to the home viewer to justify the purchase of expensive DTV/HDTV receivers. Compressed capture, storage and transmission systems provide significant benefits in bit efficiency by limiting high spatial frequencies and removing redundancy in the image but significant high frequency detail in the image will force the compressor to severely quantize the image, often resulting in blockiness. To preserve detail, the compressor will look to sacrifice quality elsewhere, unfortunately sometimes recognizing noise as detail. The solution is to provide high quality pre-compression noise reduction before the compression process. Combining this with an integrated DTV upconverter eliminates multiple de-interlacing and re-interlacing steps and enables the upconverter to operate on a clean, noise reduced source.
Motion Compensated De-Interlacing: The Key to the Digital Video Transition
As the video industry transitions from analog to digital, more and more video processing equipment will also need to transition. Current analog standards are based on interlaced formats. As they transition to digital, the demand for progressive material will increase, causing a directly proportional increase in the demand for video processing products with high quality de-interlacing. There are different ways to perform the de-interlace process with varying levels of quality and corresponding compute requirements; there is a new de-interlacing technique and applications where the new technique can improve the end-to-end image quality of any DTV system.
PLATFORM
Parallel Processing Solves the DTV Format Conversion Problem
In the early stages of the DTV rollout, broadcasters will be required to simultaneously broadcast program material on both digital and analog channels (simulcast). Broadcasters will need to combine locally generated advertising, programming and logos with network generated programming - material in a variety of different HD and SD formats. This will force the broadcaster to convert most of their material from SD to HD (up-convert), from HD to SD (down-convert) or from one HD format to another (side-convert). Often all of these conversions will need to be performed simultaneously. The typical approach to format conversion is to "hard-wire" the processing algorithms using Field Programmable Gate Arrays (FPGAs) or Application Specific Integrated Circuits (ASICs). This approach has several disadvantages to be discussed. An alternative approach uses massively parallel computer technology to create a fully programmable video processor. This "Video Computer" can be programmed to perform a variety of video processing functions and provides the flexibility and scalability to support emerging formats and expanded capabilities without requiring a system redesign.
Teranex Digital Cinema Platform
This document outlines a baseline development platform and early deployment solution for the procession and delivery of movies for digital cinema presentation. The system is centered upon the Teranex Video Computer, which performs the "Studio Look" processing, colorspace conversion, compression, and encryption - all in real-time. The resultant bitstream is then delivered to the theatre via any desired transport mechanism, and subsequently decrypted, decoded, and displayed via digital projection. This system is flexible enough to rapidly implement algorithm changes based upon performance evaluations and powerful enough to execute the algorithms in real-time on high definition (or larger) data streams.
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