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PANORAMIC VIDEO SYSTEM

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PANORAMIC VIDEO SYSTEM Powered By Docstoc
					PANORAMIC VIDEO SYSTEM
              BY
         IMRAN ACHMED




     SUPERVISOR: MR. J. CONNAN
PROJECT OVERVIEW

   Simultaneously record and merge together multiple
    video sequences to form a single video sequence.



   This is known as a panoramic video sequence.
INTRODUCTION

   Object Orientated Design

    ◦ Portable Pixelmap (PPM)

    ◦ Grayscale

    ◦ Edge Detection

   Object Orientated Analysis

   User Interface Specification
              PORTABLE PIXELMAP (PPM)
                 The PPM format is a colour image file format.

                 It is very easy to write and analyse programs to process
                  this format.
 Magic
 Number           P3
                  #     sam       .ppm
Comment
                        ple
Dimensions        3     3
Max. Colour       255         R        G   B

  ASCII           255   255       255          56   56   56    78    78    78
  Decimal         210   78        7            45   89   117   233   54    56
                  110   210       39           45   58   61    210   155   78
GRAYSCALE
   An image in which the value of each pixel is a single
    sample.

   It carries all the information about its intensity.

   To convert any colour to its most approximate level of
    grey, we must obtain the values of its red, green and
    blue primaries.
GRAYSCALE

     R x 30%




     G x 59%




     B x 11%
EDGE DETECTION
Marr-Hildreth Algorithm


20 x 20 Mask


Threshold factor
  EDGE DETECTION




Threshold =50   Threshold = 100   Threshold = 150   Threshold = 200
OBJECT ORIENTATED ANALYSIS
USER INTERFACE SPECIFICATION
PROJECT TIMELINE
                Goal                              Due Date

•Calculate percentage of overlap.

•Match the edges in the overlap of the
frames.                                •Term 3

•Merge the frames based on its match.

•Create new panoramic video.



•Testing and evaluating the software.
                                        •Term 4
•Creating a users guide.
REFERENCES

   W. Tang, T. Wang & P. Heng. A system for real-time Panorama
    Generation and Display in Tele-immersive Applications.


   A. Agarwala , K. Zhang , C. Pal , M. Agarwala , M. Cohen , B.
    Curless , D. Salesin & R. Szeliski , (2005). Panoramic Video
    Textures. University of Washington, Microsoft Research &
    University of Massachuseits.

   S. Gumustekin & R.W. Hall, (1996). Mosaic Image Generation
    on a flattened Gaussian sphere. In Proceedings of IEEE
    Workshop on Application of Computer Vision, pp. 50-55.
DEMONSTRATION
   PPM Video

   Grayscale Video

   Edge Detection Video

   Simple Prototype

				
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posted:4/26/2013
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