VIDEO ♥ QUESTIONS

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 one was Analog

2. What are some advantages of digital video
Some of the Advantages are:

• More Programs can be used with it
• Higher fedality
• Easier less Problems

3.What is meant by Frame rate in Video

Frame rate, or frame frequency, is the measurement of the frequency (rate) at which an imaging device produces unique consecutive images called

4.Do all applications use the same frame rate, explain your answer
No, because frame rates aren't all the same.

5.What is meant by resolution, how is it measured

Resolution in terms of electron density is a measure of the resolvability in the electron density map of a molecule.

6.What is the colour system called RGB

The RGB color model is an additive color mode in which red,green and blue light are added together in various ways to reproduce a broad array of colors . The name of the model comes from the initials of the three additive primary colors red, green, and blue.

7.Explain the video standards PAL, NTSC, and SECAM, what are the main differences between them.

PAL : short for Phase Alternating Line, is a color-encoding system used in broadcast television systems

NTSC:NTSC is a color TV standard developed in the US in 1953 by the National Television System Committee. NTSC uses a Frame consisting of 486

SECAM:A color television system developed by the French and used in the former USSR. Secam operates with 625 lines per picture frame

8.Which standard do we use in Australia?

Australians frequently use PAL as it a more standard option

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

No, Need for a video capture card because digitization occurs in the camera, there is no need for an analog-to-digital video capture card in your computer.

10.What is an IEEE 1394 port

The IEEE 1394 interface is a serial bus interface standard for high-speed communications and isochronous real-time data transfer, frequently used by personal computers, as well as in digital audio, digital video, automotive, and aeronautics applications.

11.Describe what a codec is:

The compressin and decompression of a video is handled by Codec. Codecs are apart of alot of hardware. Some codecs have a fixed compression ratio and therefore a fixed data rate. Others can compress each frame a different amount depending on its content, resulting in a data rate that can vary over time. Some codecs allow you to choose a quality setting that controls the data rate. Such adjustable setting can be useful in editing.