'Discrete cosine transform' diaporamas de présentation

Video Surveillance: Legally Blind?

Video Surveillance: Legally Blind?. Peter Kovesi School of Computer Science & Software Engineering The University of Western Australia. Questions What image quality do we need for identification? How do you measure image quality? What is the image quality from a video camera?

626 views • 48 slides

Digital Media

564 views • 45 slides

Co-registration and Spatial Normalisation

Co-registration and Spatial Normalisation. Nazanin Derakshan Eddy Davelaar School of Psychology, Birkbeck University of London. What is Spatial Normalisation?.

538 views • 39 slides

Introduction to Image and Video Coding Algorithms

647 views • 33 slides

SI23 Introduction to Computer Graphics

SI23 Introduction to Computer Graphics Lecture 2 - Images Graphics Programming 3D Graphics URL VRML viewer 2D vector graphics surfaces Image Display URL SVG Viewer lines, areas URL GIMP viewing, shading graphics algorithms colour interaction Course Outline OpenGL API

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Implementation and analysis of Directional DCT in H.264 EE 5359 Multimedia Processing Guidance: Dr K R Rao

Implementation and analysis of Directional DCT in H.264 EE 5359 Multimedia Processing Guidance: Dr K R Rao. Priyadarshini Anjanappa UTA ID: 1000730236 priyadarshini.anjanappa@mavs.uta.edu. Introduction A popular scenario in image blocks is the occurrence of directional edges.

596 views • 28 slides

Client and Server processors

Client and Server processors. Client incorporates Multi Media (sound and video) Imaging (3D) Security and network accessibility wireless communications Server incorporates High speed processing Management of large memory and file store complexes. Client processors.

425 views • 28 slides

An Introduction to Compressive Sensing

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School of Computing Science Simon Fraser University

School of Computing Science Simon Fraser University. CMPT 820: Multimedia Systems Digital Image Representation and Compression Mohamed Hefeeda. Analog & Digital Signals Sampling & quantization Discrete Cosine Transform Compression Methods Color Models JPEG Compression

397 views • 26 slides

Steganography

497 views • 24 slides

Study Of Iris Recognition Schemes

Study Of Iris Recognition Schemes. By:Ritika Jain ritika.jain@mavs.uta.edu Under guidance of DR K R RAO UNIVERSITY OF TEXAS AT ARLINGTON SPRING 2012. PROPOSAL.

281 views • 23 slides

Using Word Based Features for Word Clustering

Using Word Based Features for Word Clustering. Department of Electronics and Communications, Faculty of Engineering Cairo University. Research Team: Farhan M. A. Nashwan Prof. Dr. Mohsen A. A. Rashwan. Presented By: Farhan M. A. Nashwan.

400 views • 23 slides

Codesign Extended Applications

Codesign Extended Applications. Brian Grattan, Greg Stitt, Frank Vahid* Dept of Computer Science & Engineering University of California, Riverside *Also with the Center for Embedded Computer Systems at UC Irvine

321 views • 21 slides

The General Linear Model

The General Linear Model. Guillaume Flandin Wellcome Trust Centre for Neuroimaging University College London. SPM Short Course London, 21-23 Oct 2010. Image time-series. Statistical Parametric Map. Design matrix. Spatial filter. Realignment. Smoothing. General Linear Model.

375 views • 20 slides

Lossy Compression

Lossy Compression. William Dayton Nick Trojanowski. Lossy file compression compresses files by trimming out data, and therefore quality, from the original data. The loss of data is not usually enough to be noticeable by the user, but can immensely save on file size. Definition.

433 views • 19 slides

The General Linear Model

The General Linear Model. Guillaume Flandin Wellcome Trust Centre for Neuroimaging University College London. SPM fMRI Course London, May 2012. Image time-series. Statistical Parametric Map. Design matrix. Spatial filter. Realignment. Smoothing. General Linear Model.

347 views • 19 slides

Digital Image Processing

Digital Image Processing. Jain-Yi Lu ( ??? ) Visual Communications Laboratory Department of Communication Engineering National Central University ChungLi , Taiwan. Homework II Fast Discrete Cosine Transform. The Goal of This Homework. Implement Fast Discrete Cosine Transform

298 views • 14 slides

JPEG

JPEG. Standard approved in 1994 ISO 10918-1 . JPEG . Basis Vectors of DCT. RGB to Y Cb Cr. reduce the spatial resolution of the Cb and Cr components 4:4:4 (no downsampling ), 4:2:2 (reduce by factor of 2 in horizontal direction)

320 views • 13 slides

Investigation by Steganalysis

Investigation by Steganalysis. Paper By: Neil F. Johnson and Sushil Jajodia Center for Secure Information Systems, George Mason University, MS:4A4, Fairfax, Virginia 22030-4444 Presented By: Mahesh Narayan Internet Security Principles CSE691 Fall 2001. What is Steganography?.

347 views • 10 slides

Image compression using Hybrid DWT & DCT

Image compression using Hybrid DWT & DCT. Presented by: Suchitra Shrestha Department of Electrical and Computer Engineering Date: 2008/10/09. Introduction(1). Why Image Compression? Digital images in their raw form require an enormous amount of memory To reduce Redundancy

298 views • 6 slides