intro to video?

1. The video format we will be using this term is Digital Video, what is the other, older format that was used recently.
The older form of digital videos were analog.

2. Describe the difference between the two formats.
The difference between the two forms, digital and analog is that the digital signal was precise points and analog signal is made up of varied waveforms.

3. What are some advantages of digital video?
Some advantages of digital vidoe is that to edit something on it you don't have to start from scratch like older forms of digital video.

4. What is meant by frame rate in video?
Frame rate is the number of picture being shown per second.

5. Do all applications use the same frame rate, explain your answer?
No, all applications don't as the number of pictures per second in a frame varies depending on the place/ country in which u watch the show/movie?

6. What is meant by resolution, how is it measured.
Resolution is represented by the number of individual picture pixels that are on the screen,
and is expressed as a number of horizontal pixels times the number of vertical pixels. The higher resolution the better quality an image is.

7. What is the colour system called RGB?
Red, green and blue components of a colour.

8. Explain the video standards PAL, NTSC, and SECAM, what are the main differences between them.
PAL, is used to format decks and cameras, NTSC, is one format to record vidoes on VHS? and SECAM, isThe main difference between these three video standards is a format only used for broadcasting. that they are used in different countries.

9. Which standard do we use in Australia?
The standard we use in Australia is PAL.

10. For what type of video camera would you need to have a Video Capture Card in your computer to download video?
an analog video camera?

11. Why don’t we need a video capture card for the video we will be doing at school?
this may be because at school we will be using digital video cameras

12. What is an IEEE 1394 port?
It is a port in which you connect an IEEE 1394 connector to a DV camera to a computer IEEE 1394 port.

13. Why do digital video cameras use video compression?
Because when a video is digitized it will be compressed, it is also because the vidoe size may be to big and needs to be compressed to make smaller and take up less room?

14. Describe what a codec is?
Codec is the the compression and decompression of video is handled by something.

15. What is meant by generation loss, where does it happen?
it