By Cliff Wootton
Examine all approximately Codecs--how they paintings, in addition to layout and implementation with this accomplished, easy-to-use consultant to compression. After studying this publication, it is possible for you to to organize and distribute expert audio and video on any platform together with streamed to the net, broadcast on-air, saved in PVRs, Burned onto CD-ROMs or DVDs, brought through broadband, or seen in Kiosk purposes, PDA units, and cell phones.
Read or Download A Practical Guide to Video and Audio Compression: From Sprockets and Rasters to Macro Blocks PDF
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Additional resources for A Practical Guide to Video and Audio Compression: From Sprockets and Rasters to Macro Blocks
If the cost of storage is the limiting factor, then the equation is reversed. The decision then becomes how much video and at what picture size is going to be stored in the available disk space. 9 Moving-Image Formats Now that we understand the basic requirements of a compression system, we can look at what kind of material is going to be processed. Film, TV, and computer data are all different. The next few chapters look at each of them in detail and close with an examination of audio, which is an important component of the viewing experience.
Only pixels containing a moving object need to be delivered. More sophisticated games are evolving, and interactivity becomes more interesting if you cache the different visual components of the scene in the local player hardware and then composite them as needed. This allows some virtual-reality (VR) techniques to be employed to animate the backdrop from a large static image. Nevertheless, compression is still required in order to shrink these component assets down to a reasonable size, even if they are served from a local cache or CD-ROM.
This will also work well for MRI, ultrasound, and X-ray-imaging systems that could all have their output fed in real time to a remote surgeon. The requirements here are for very high resolution. Xray images need to be digitized in grayscale to increased bit depths and at a much higher resolution than TV. This obviously increases the amount of data to be transferred. 8 Remote Education Young people often have an immediate grasp of technology and readily participate in interactive games and educational uses of video and computing systems.
A Practical Guide to Video and Audio Compression: From Sprockets and Rasters to Macro Blocks by Cliff Wootton