1. What are some advantages of digital video? Of all the disadvantages of using digital video cameras this is probably the most challenging.
You have read the sensible articles stating that it is not the equipment but the technique that makes the best digital videos.But who cares about that! If you are a real enthusiast then it is as much about the equipment as it is the end result.
Yes there is a high initial cost to pay, but it has fallen, quite considerably in recent years. But I wonder if like me, you feel that you have to aim for at least a certain standard of digital video camera, past the basic models at least.
2.What is meant by frame rate in video?
Frame rate, or frame frequency, is the frequency (rate) at which an imaging device produces unique consecutive images called frames. The term applies equally well to computer graphics, video cameras, films cameras, and motion capture systems. Frame rate is most often expressed in frames per second (FPS), and is also expressed in progressive scan monitors as hertz (Hz).
3. Are all videos/movies the same frame rate, explain your answer.
Not all videos/movie frames are the same, they can option from a varitiy of different things that you can choose from.
4. What is meant by resolution, how is it measured
Monitors are measured in inches, diagonally from side to side (on the screen). However, there can be a big difference between that measurement and the actual viewable area. A 14-inch monitor only has a 13.2-inch viewable area, a 15-inch sees only 13.8 inches, and a 20-inch will give you 18.8 inches (viewing 85.7% more than a 15-inch screen).
5.What is the colour system called RGB
An RGB color space is any additive color spaces based on the RGB colour modle. A particular RGB color space is defined by the three chromaticities of the red, green, and blue additive primaries, and can produce any chromaticity that is the triangle defined by those primary colors
6.Explain the video standards PAL, NTSC, and SECAM, what are the main differences between them?
7.Which standard to we use in Australia
In Australia we use NTSC.
8.What is an IEEE 1394 port?
The IEEE interface is a serial bus interface standard for high communication and isochronous real-time data transfer, frequently used by personal computer as well as in digital audio digital video,automotive and aeronuatics applications.
Video compression is clearly our friend because without a lot of compression we would have a very hard time handling the massive data we get from a 1080p video stream. Think of two mega pixels per frame at 24, 30 or 60 frames per second (translates to 48, 60 or even 120 mega pixels data per second). 10. Describe what a codec is.
Originally, the term CODEC referred ti a COder/DECoder: a device that converts between analog and digital. Now, the term seems to relate more to COmpression/DECompression.One of the important features of a codec is its bitrate which refers to the number of bits that is required to be transmitted per second.
11.What is meant by “generation loss”, where does it happen?
the population of this country has gone down by and enormous amont.
PAL (Phase Alternating Line)
NTSC (National Television System Committee)
SECAM (Sacquentiel Color Macmoireae ”Sequential Color with Memory)
