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