Video Analysis and Repackaging for Distance Education

  • A. Ranjith Ram
  • Subhasis Chaudhuri

Table of contents

  1. Front Matter
    Pages i-xiii
  2. A. Ranjith Ram, Subhasis Chaudhuri
    Pages 1-9
  3. A. Ranjith Ram, Subhasis Chaudhuri
    Pages 11-19
  4. A. Ranjith Ram, Subhasis Chaudhuri
    Pages 21-43
  5. A. Ranjith Ram, Subhasis Chaudhuri
    Pages 45-63
  6. A. Ranjith Ram, Subhasis Chaudhuri
    Pages 65-88
  7. A. Ranjith Ram, Subhasis Chaudhuri
    Pages 89-105
  8. A. Ranjith Ram, Subhasis Chaudhuri
    Pages 107-128
  9. A. Ranjith Ram, Subhasis Chaudhuri
    Pages 129-150
  10. A. Ranjith Ram, Subhasis Chaudhuri
    Pages 151-156
  11. Back Matter
    Pages 157-175

About this book

Introduction

This book presents various video processing methodologies that are useful for distance education. The motivation is to devise new multimedia technologies that are suitable for better representation of instructional videos by exploiting the temporal redundancies present in the original video. This solves many of the issues related to the memory and bandwidth limitation of lecture videos. The various methods described in the book focus on a key-frame based approach which is used to time shrink, repackage and retarget instructional videos. All the methods need a preprocessing step of shot detection and recognition, which is separately given as a chapter. We find those frames which are well-written and distinct as key-frames. A super-resolution based image enhancement scheme is suggested for refining the key-frames for better legibility. These key-frames, along with the audio and a meta-data for the mutual linkage among various media components form a repackaged lecture video, which on a programmed playback, render an estimate of the original video but at a substantially compressed form. The book also presents a legibility retentive retargeting of this instructional media on mobile devices with limited display size. All these technologies contribute to the enhancement of the outreach of distance education programs. Distance education is now a big business with an annual turnover of over 10-12 billion dollars. We expect this to increase rapidly. Use of the proposed technology will help deliver educational videos to those who are less endowed in terms of network bandwidth availability and to those everywhere who are even on a move by delivering it effectively to mobile handsets (including PDAs). Thus, technology developers, practitioners, and content providers will find the material very useful.

Keywords

Horizontal projection profile Ink pixel Key-frame extraction Key-hole image Local content delivery Pedagogic content Text tracking meta-data Vertical projection profile Video capsule Video highlight Video repackaging Video retargeting Video segmentation Virtual pan Watermarking

Authors and affiliations

  • A. Ranjith Ram
    • 1
  • Subhasis Chaudhuri
    • 2
  1. 1.Government College of EngineeringKannurIndia
  2. 2.Dept. Electrical EngineeringIndian Institute of Technology, BombayPowai, MumbaiIndia

Bibliographic information

  • DOI https://doi.org/10.1007/978-1-4614-3837-3
  • Copyright Information Springer Science+Business Media New York 2012
  • Publisher Name Springer, New York, NY
  • eBook Packages Computer Science
  • Print ISBN 978-1-4614-3836-6
  • Online ISBN 978-1-4614-3837-3
  • About this book