'Lossy compression' diaporamas de présentation

Media Technology I

Media Technology I. Lecture Notes and Tutorials on: Web : www.staff.city.ac.uk/~raj. Aim of this Module. Describe the theory and operation of the major technologies and equipment of relevance to the media and information industries

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The State of Web Standards

The State of Web Standards. Larry Masinter Xerox Palo Alto Research Center May 1996. Purpose of this talk . Describe the standards process Survey current Web-related standards Introduce acronyms and buzzwords Describe relation to other activities. May 1996.

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Multimedia - Graphics

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Lecture 5: Index Compression

620 views • 48 slides

Using Digital Music in Scottish Country Dancing

Using Digital Music in Scottish Country Dancing. A presentation by David Ambrose 19th April 2009 for South East Region Teachers Association. Our Discussion Today. E quipment. Mixing and microphones. Digital music; what is it? Getting music onto the equipment. Working with sound files.

744 views • 43 slides

010.141 Engineering Mathematics II Lecture 16 Compression

010.141 Engineering Mathematics II Lecture 16 Compression. Bob McKay School of Computer Science and Engineering College of Engineering Seoul National University. Outline. Lossless Compression Huffman & Shannon-Fano Arithmetic Compression The LZ Family of Algorithms Lossy Compression

443 views • 30 slides

Data Compression

Data Compression. Reduce the size of data. Reduces storage space and hence storage cost. Compression ratio = original data size/compressed data size Reduces time to retrieve and transmit data. Lossless And Lossy Compression. compressedData = compress(originalData)

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8. Compression

8. Compression. Video and Audio Compression . Video and Audio files are very large. Unless we develop and maintain very high bandwidth networks (Gigabytes per second or more) we have to compress the data.

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Data Compression

Data Compression. How File Compression Works .

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ECE472/572 - Lecture 12

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Scalar Quantization

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Wavelets and Data Compression

Wavelets and Data Compression. Michael A. Karls. Topics. Fourier Series Wavelets FBI Fingerprint Compression A Wavelet-Based Data Compression Scheme An Image Compression Example Averaging and Differencing.

640 views • 24 slides

IMGD-1001 The Game Development Process

IMGD-1001 The Game Development Process. Game Audio (Content by professor Brian Moriarty). Sound. Audible vibration in an elastic medium (usually air). Compression (positive pressure) Rarefaction (negative pressure). Amount of pressure change = Amplitude. Varies continuously over time.

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Introduction to Data Compression

Introduction to Data Compression. What is Data Compression? Why Data Compression? How is Data Compression possible? Lossless and Lossy Data Compression Static, Adaptive, and Hybrid Compression Compression Utilities and Formats Run-length Encoding Static Huffman Coding The Prefix property.

982 views • 22 slides

Introduction to Image Processing with MATLAB

Introduction to Image Processing with MATLAB . Wally Block. BME / Medical Physics 530 Medical Imaging Systems. Overview. Getting Help 2D Matrix / Image Coordinate system Display Storing images 2D Functions Discrete Fourier Transform 1D DFT fftshift

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What is Canada doing about Lossy Compression?

What is Canada doing about Lossy Compression?. Peter R.G. Bak, Ph.D. Project Director, Diagnostic Imaging and Laboratory Architecture Canada Health Infoway 15 February, 2006. Disclosures. Peter R.G. Bak is a consultant working for Canada Health Infoway. Lossy Compression in Canada.

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CS216: Program and Data Representation University of Virginia Computer Science Spring 2006 David Evans

CS216: Program and Data Representation University of Virginia Computer Science Spring 2006 David Evans. Lecture 15: Compression. http://www.cs.virginia.edu/cs216. Menu. Garbage Collection Puzzle Encoding: Huffman, LZW, GIF Representing Numbers. Fighting Finalizers.

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Wyner-Ziv Video Coding with Hash-Based Motion Compensation at the Receiver

Wyner-Ziv Video Coding with Hash-Based Motion Compensation at the Receiver. Overview. Low-complexity video encoding Wyner-Ziv video codec Hash-based motion-compensation at the receiver Simulation results. Interframe Video Coding. Predictive Interframe Encoder.

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