Chapter 10 PowerPoint® Presentation (1202.0K)

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  • 1. Video Chapter 10

2. Video in Multimedia

  • Visual motion helps to convey realism and movement

3. Uses of Video in Multimedia

  • Video enhances common applications of multimedia.
    • Video simulationsshow procedures and interactions that would be dangerous to perform in actuality
    • Gamesuse video to simulate flight, car racing, and other action
    • Web sites and CD-ROMsuse videos as reference material
    • Videoconferencesenable participants to see each other and witness demonstrations

4. Video Quality

  • Video quality depends on:
    • The resolution and clarity of individual video frames.
    • The frame rate or speed at which video frames appear. Frame rate is measured in frames per second (FPS).

5. What is streaming video?

  • Streaming video refers to a technique for transferring data so that the browser starts displaying the data before the entire file has been transmitted.

6. Video File Format

  • A video files format determines:
    • Which programs can open and play it.
    • How much space it occupies on a disk.
    • How fast it travels over an Internet connection.

7. Common File Formats

  • The most commonly used video file formats are:
    • MOV (movie), also known as QuickTime
    • WMV (Windows media video)
    • AVI (audio video interleave)
    • MPEG compresses audio and video

8. Video Software

  • There are programs for playing video and audio, as well as editing and distributing video.
    • A number of video players are available on the Internet for free or at nominal cost.
    • Video editing software allows you to edit video.

9. Video Hardware

  • Video hardware includes:
    • Camcorders, digital or analog, for recording live action
    • Webcams, to include live, streaming video in a Web site
    • Capture cards for converting analog video to digital format
    • Video tuners to enable a PC to receive and save television signals

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