Web Presence

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This slide presentation describes how to present your work in the web.

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Web Presence

  1. 1. Web presence Dr. T. Balasubramanian M.S. D.L.O.
  2. 3. <ul><li>Sheer size of audience </li></ul><ul><li>Freedom of expression </li></ul><ul><li>You decide the screen play / Content </li></ul><ul><li>The stage is entirely yours </li></ul>
  3. 4. The Hurdles <ul><li>Editor </li></ul><ul><li>Editorial Board </li></ul><ul><li>Publishing Board </li></ul><ul><li>Financial Proforma </li></ul><ul><li>Publisher </li></ul>
  4. 5. What to do ? <ul><li>Document your cases meticulously </li></ul><ul><li>Personal data base of interesting / unique cases </li></ul><ul><li>Collect references </li></ul><ul><li>Now you are ready to take the plunge </li></ul>
  5. 6. I have interesting surgical videos <ul><li>You tube </li></ul><ul><li>Yahoo videos </li></ul><ul><li>AOL videos </li></ul><ul><li>Photobucket </li></ul>
  6. 7. Making yr video fit for uploading <ul><li>Editing </li></ul><ul><li>Adding commentary </li></ul><ul><li>Video size (optimal 100 mb) </li></ul><ul><li>Supported video formats </li></ul>
  7. 8. Embedding videos to yr site
  8. 9. Web publishing <ul><li>Wiki </li></ul><ul><li>Blogging </li></ul><ul><li>Personal website </li></ul><ul><li>Popfly </li></ul><ul><li>Google apps </li></ul><ul><li>Google sites </li></ul>
  9. 10. Tools needed
  10. 11. Handy cams (types) <ul><li>Cassette type </li></ul><ul><li>DVD </li></ul><ul><li>Hard disk </li></ul>
  11. 12. Video editing software <ul><li>Pinnacle </li></ul><ul><li>Ulead </li></ul><ul><li>Adobe premiere </li></ul><ul><li>Windows movie maker </li></ul><ul><li>I movie (Apple) </li></ul><ul><li>Final cut pro (Apple) </li></ul>
  12. 13. Recording endoscopic surgery <ul><li>Using Handy cam </li></ul><ul><li>Using laptop / computer – video capture card </li></ul>
  13. 15. Fire wire port <ul><li>Used to record from tape handy cam </li></ul><ul><li>Video should be played completely for recording it </li></ul><ul><li>Fire wire port / cable needed </li></ul>
  14. 16. Types of cables <ul><li>S video cable </li></ul><ul><li>Composite cable </li></ul>
  15. 17. S Video <ul><li>Super video </li></ul><ul><li>Video is carried as two separate signals i.e. Luma (luminance) and chroma (color) </li></ul><ul><li>Audio is not carried in the same cable </li></ul>
  16. 18. Composite video <ul><li>Commonest video interface </li></ul><ul><li>Since the signal passes through low pass filter there is some amount of degradation </li></ul><ul><li>Sound is also carried through the cables </li></ul>
  17. 19. Y/C signal comparison between composite (a) and S-video (b).
  18. 20. Video compression <ul><li>MPEG 1 – for video cds </li></ul><ul><li>MPEG 2 – Set top boxes / DVD </li></ul><ul><li>MPEG 4 – For web </li></ul><ul><li>DV – used in handy cams </li></ul><ul><li>DiVx – Recently developed standard </li></ul>
  19. 21. Image formats <ul><li>BMP (Bitmap) </li></ul><ul><li>JPEG (Good for photographs) </li></ul><ul><li>PNG Portable network graphics Good for icons) </li></ul><ul><li>GIF (Graphic interchange format) </li></ul><ul><li>DICOM (Digital imaging and communications in medicine) </li></ul><ul><li>TIFF (Images for printing) </li></ul>
  20. 22. Water marking images
  21. 23. BMP 152 kb JPEG 28 kb PNG 8 kb GIFF 12 kb
  22. 24. JPEG <ul><li>Use this for photographs </li></ul><ul><li>Don’t edit an already edited JPEG file </li></ul><ul><li>Optimize the size of the image for web viewing </li></ul><ul><li>If you have to put multiple JPEG images in a single page put a smaller version giving the option of downloading the larger file to the viewer </li></ul>
  23. 25. Dicom <ul><li>Standard for handling medical imaging </li></ul><ul><li>This image format contains also pt details for easy archiving </li></ul><ul><li>It needs a special viewer to view it </li></ul><ul><li>Image J is the commonly used viewer to view these files </li></ul>
  24. 26. Dicom converters
  25. 27. Image editors <ul><li>Photoshop </li></ul><ul><li>Acdsee </li></ul><ul><li>Corel paintshop </li></ul><ul><li>GIMP </li></ul>
  26. 28. Knol them

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