CS101.Lect24.Video.ppt

CS101.Lect24.Video.ppt - CS101 Lecture 24: Digital Video...

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Computer Science CS101 Lecture 24: Digital Video Concepts Aaron Stevens (azs@bu.edu) 15 November 2011 Computer Science What You’ll Learn Today How to make a web page look decent - formatting the website. How to have the same look-and-feel across many web pages.
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Computer Science What You’ll Learn Today Why do they call it a “motion picture”? What is digital video? How does digital video use compression? How does YouTube send video over the internet? Computer Science Who invented moving pictures? "I am experimenting upon an instrument which does for the eye what the phonograph does for the ear, which is the recording and reproduction of things in motion . ..." Thomas A. Edison 1888
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Computer Science Moving Pictures How do you make moving pictures out of still images? Play enough images quickly enough to fool the mind into perceiving the images as continuous. Analogous to sampling by taking many successive pictures. Computer Science 6 Example: Flip Book
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Computer Science Frame Rate The frame rate describes how many distinct images per second. Below which frame rate do humans see discrete
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This note was uploaded on 12/16/2011 for the course CS 101 taught by Professor Stevens during the Fall '08 term at BU.

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CS101.Lect24.Video.ppt - CS101 Lecture 24: Digital Video...

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