Download A Practical Guide to Video and Audio Compression: From by Cliff Wootton PDF

By Cliff Wootton

Research all approximately Codecs--how they paintings, in addition to layout and implementation with this finished, easy-to-use advisor to compression. After examining this publication, it is possible for you to to organize and distribute specialist audio and video on any platform together with streamed to the internet, broadcast on-air, kept in PVRs, Burned onto CD-ROMs or DVDs, introduced by way of broadband, or seen in Kiosk functions, PDA units, and cellphones.

Show description

Read Online or Download A Practical Guide to Video and Audio Compression: From Sprockets and Rasters to Macro Blocks PDF

Similar information theory books

Discrete cosine and sine transforms: general properties, fast algorithms and integer approximations

The Discrete Cosine rework (DCT) is utilized in many purposes by means of the medical, engineering and examine groups and in facts compression specifically. quick algorithms and purposes of the DCT kind II (DCT-II) became the center of many proven foreign image/video coding criteria.

Nonlinear Control in the Year 2000, Volume 2

Regulate of nonlinear platforms, probably the most energetic examine parts up to the mark concept, has regularly been a website of traditional convergence of study pursuits in utilized arithmetic and regulate engineering. the idea has constructed from the early part of its historical past, while the elemental instrument was once basically merely the Lyapunov moment procedure, to the current day, the place the math levels from differential geometry, calculus of diversifications, traditional and partial differential equations, sensible research, summary algebra and stochastic methods, whereas the purposes to complicated engineering layout span a large choice of subject matters, which come with nonlinear controllability and observability, optimum keep an eye on, country estimation, balance and stabilization, suggestions equivalence, movement making plans, noninteracting keep watch over, disturbance attenuation, asymptotic monitoring.

Algorithmic Information Theory: Mathematics of Digital Information Processing (Signals and Communication Technology)

Algorithmic info idea treats the maths of many vital components in electronic details processing. it's been written as a read-and-learn publication on concrete arithmetic, for academics, scholars and practitioners in digital engineering, laptop technology and arithmetic. The presentation is dense, and the examples and workouts are a variety of.

Information Theory and Coding

Details idea, details and assets, a few houses of Codes, Coding details resources, Channels and Mutual info, trustworthy Messages via Unreliable Channels, thesaurus of Symbols and Expressions.

Additional resources for A Practical Guide to Video and Audio Compression: From Sprockets and Rasters to Macro Blocks

Example text

It is founded on the concept of looking for differences between successive images and describing those differences, without having to repeat the description of any part of the image that is unchanged. Spatial compression is used to define a starting point or key frame. After that, only the differences are described. Reasonably good quality is achieved at a data rate of one tenth of the original data size of the original uncompressed format. Research efforts are underway to investigate ever more complex ways to encode the video without requiring the decoder to work much harder.

This is all done more effectively on desktop machines with greater processing power. The laptop solution is part of an end-to-end process of workflow that allows a lot of work to be done in the field before content is shipped back to base. 30 A Practical Guide to Video and Audio Compression Figure 2-9 Portable laptop and video camera. 2 Video Playback on Handheld Devices Handheld video playback is becoming quite commonplace. There are several classes of device available depending on what you need.

Some of your pre-compression processing, such as cropping and scaling, is going to be based on what you know about these values. The frames per second (fps) value tells you whether any time-based correction or pulldown is necessary to introduce additional frames for your target output platform. The scanning method indicates the complexity of any motion-based processing. Raw film can be converted to interlaced or progressive scanning quite easily. Video originates in an interlaced format, and that does not conveniently convert to progressive scanning without some complex interpolation.

Download PDF sample

Rated 4.64 of 5 – based on 27 votes