Hd Test Video 1080p
Processing of video compression algorithms and altered the original program in the quest to reduce the bandwidth needed to send the information programming for the home. The art is to do this without letting the audience to see a difference in video quality. Video processing algorithms and success compression to make desired to produce a result to the viewer that, subjectively, it seems natural and realistic. This sounds difficult but is necessary to send many channels of high quality.
Each broadcaster – traditional or web caster – must deal with the rapid development of varieties programming, new video processing algorithms, and new compression algorithms. Many video processing and compression companies continually invent sophisticated forms that reduce the need for high bandwidth to manageable levels.
Previous Options
Traditionally, broadcasters invite the video processing and compression of different companies in their R & D, and perform side by side test also known as baking a "off". Each vendor is initiated with the same source material, and does its best work to reduce the bandwidth while maintaining high video quality.
The configuration test usually consists of programming a video source VTR or stored in a compressed light of a video server. The video source is sent to processing and various video compression systems. The original source and processed video sequences are stored for later viewing.
The broadcaster shows the results of a group of experts and asked what is the best. This is called subjective video analysis, measuring the general perception of video quality. The most commonly used method of assessing video quality is the Mean Opinion Score (MOS), recommended by the ITU. It consists of watching a well-known experts distorted video sequences in order of their rate of quality, according to a predefined quality scale. Thus viewers of experts are trained to build correspondence between the quality scale and a set of processed video sequences. After the "training" is complete, subjects were then asked the rate of new video processing algorithms. Although studies of SOM have been the basis for analyzing many aspects of signal processing, presents several limitations: a) The environments are very stringent requirements, b) the process can be automated, consume c) is very costly and time to repeat often.
Video Solution Clarity
The ClearView Video Analysis system simplifies the workflow, combining the video server and capture device in one unit. Thus, the original source and processed video sequences can be displayed – side by side, mirrored, or seamless split – on the same screen. Moreover, the operator can play any video sequence in any order, at any speed, any time, zoom, pan, jogging, and linking capabilities.
ClearView applies metrics objective different from video sequences, generates graphs and calculates an objective score. While the development of various algorithms is ongoing, ClearView is a hybrid system that takes into account the subjective tests with objective measures. ClearView can easily be programmed to display video sequences for expert viewers during the recording of scores goal with MOS metric. While the MOS can not repeat, the objective metrics can be easily and easily.
Benefits
- Repeatable tests, quantitative results, and simplified configuration.
- Analyze 2 1080p video sequences in real time
- ClearView does not alter the original video footage – the video sequences are processed completely uncompressed.
- Multiple display modes are presented on 1 screen – no need to calibrate 2 screens independent television to compare video sequences.
- Google Analytics is shown for each video stream.
Application
ClearView takes advantage of the high reliability of today outside the computing platforms platform. This ensures that products are made with the latest and greatest hardware available, while at the same time avoid the high cost of custom designs. ClearView is a 4U package, 20 "deep Industrial in the chassis, and is supported by VideoClarity.
Abstract
ClearView Video Analysis System provides broadcasters, video researchers, developers of compression with the unique ability to capture, play-out, and analyze video sequences. Objective measures are generated and recorded for repeatable testing in the future.
About the Author:
Bill Reckwerdt, Vice President Marketing & Business Development
Bill’s extensive career spans 20 years in the digital video and medical imaging industries. He brings to Video Clarity expertise in compression, digital transmission, and video servers.
To contact Bill directly send an email to
bill@videoclarity.com
or visit our
http://www.videoclarity.com
Article Source: ArticlesBase.com – Measuring to Find the Best Video Processing and Compression Algorithms
1080p Full HD Testvideo
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