Digital Video - PowerPoint PPT Presentation


PPT – Digital Video PowerPoint presentation | free to download - id: 7c23b2-MTEyM


The Adobe Flash plugin is needed to view this content

Get the plugin now

View by Category
About This Presentation

Digital Video


Digital Video Lesson Objectives After completing this lesson, you will be able to: Identify the characteristics of digital video. Explain what digital video editing ... – PowerPoint PPT presentation

Number of Views:94
Avg rating:3.0/5.0
Slides: 15
Provided by: Thu129


Write a Comment
User Comments (0)
Transcript and Presenter's Notes

Title: Digital Video

Digital Video
Lesson Objectives
  • After completing this lesson, you will be able
  • Identify the characteristics of digital video.
  • Explain what digital video editing is and the
    various output formats for digital video.
  • Identify the features of different Web video

Characteristics of Digital Video
  • One of the important characteristics of digital
    videos is that you can edit them easily on a
    computer by using digital video editing software.
    For example, you can
  • edit videos to include titles, add a sound track,
    or add special effects.
  • upload the video to a Web site and share it over
    the Internet.
  • copy the video from a computer to a recordable CD
    or DVD.
  • Another characteristic of digital videos is
    that they can be compressed.

Types of Camcorders
  1. Analog Camcorder
  2. Digital Camcorder

Types of CamcordersAnalog Camcorder
  • An analog camcorder records and stores video in
    an analog format on a tape.
  • To edit the video on a computer, you need to
    convert it from the analog format to the digital

Types of CamcordersDigital Camcorder
  • A digital camcorder records and stores video in a
    digital format.
  • An advantage of using the digital camcorder is
    that the recorded video is easy to edit because
    it is stored in a digital format.
  • Another advantage is that a digital camcorder is
    generally lighter and smaller than an analog

Digital Video Editing
  • Using digital video editing software, you can
  • Add titles and background music to your video to
    make it more appealing.
  • Cut or remove certain scenes from the video.
  • Add special effects, such as fade-in and
    fade-out, to the video.
  • Enhance video quality by adjusting its
    brightness, contrast, and color.
  • Record audio over the video to describe certain

Digital Video Editing
  • Digital video editing can either be linear or
  • Linear editing - you have to sequentially
    traverse a file to edit the file.
  • Nonlinear editing - You can directly go to the
    frame and remove it from your video.

Digital Video Output Formats
  • After you edit a video, you can store it in
    various formats
  • You can use software to capture a frame from a
    movie and save it as a still image.
  • You can also edit the video and save it as a
    video clip in the Windows Media Video (WMV)
  • You can also share the video clip with your
    friends by uploading it to a Web site or sending
    it by e-mail.
  • You can save the edited video clips and still
    images in a format that can be copied to a
    recordable DVD or Video CD (VCD).

Web Video Technologies Video Streaming
  • Video streaming allows you to view video files
    over the Internet without downloading them.
  • In this case, the video file is sent to your
    computer in a continuous stream.
  • You need a streaming video player to view the
    video file over the Internet.
  • You might need to download a streaming video
    player and install it on your computer before you
    can play the video files.

Web Video Technologies Two Types of Video
  • In real-time video streaming
  • you can view a live event over the Internet.
  • a camera is used to capture the live event.
  • a converter is used to convert the video into the
    video streaming format so that the video can be
    broadcast over the Internet.
  • In on-demand video streaming
  • a video is taken from a storage device, such as
    a CD or DVD, and converted into a streaming video
  • This video is then distributed over the Internet.

Downloading Video
  • You can also download video files, such as video
    clips or video presentations, from the Internet.
  • Sometimes, when you are downloading a file, you
    can play the file after a major portion of the
    file is downloaded, but usually you need to wait
    until the entire file is saved on your computer.

Web Conferencing
  • Web Conferencing allows you to
  • hold a virtual conference where you can see and
    hear others in real time.
  • use tools such as virtual whiteboards and slide
    presentations during the conference.
  • Can do screen sharing, where the participants can
    see what is on the presenters desktop.
  • voice communication between the participants so
    that they can share their views and discuss their
  •  use text chatting if voice communication is not