Aspect Ratio
16:9 (WIDESCREEN) has been used from a long time ago. It has only been brought to TV within the last decade or so. 16:9 offers more panoramic experience to see more of the subject and its surroundings.
http://projector.buyingguide.com.au/images/225_on_16_9.jpg
The image above shows a wide screen. In order to convert the above to the ratio 4:3 you have to crop the 16:9 image, which is given the term ‘Pan & Scan’. This is not a good way to convert the ratio, as it loses the essence of the footage which is being converted. This is because some essential things which the director tried to achieve may not be seen due to it being cropped out of the image in the process of the conversion.
Converting 4:3 to 16:9
To convert 4:3 to 16:9 you have to re positi8on the video image and center it whilst adding a pillow box to either side which keeps it in the same resolution not changing the image in any way or form. There is also another way of resizing/re positioning it but it may lose its resolution/pixels. This is because the image is made up of loads of small dots which form the colours we see.
The two terms for the process of size conversion can are called letter boxing and pillow boxing.
*Pixels*
If u where to zoom far into a image you will see that the image is made up of a lot of coloured dots which your brain rearranges to create a understandable image.
Frames per Second (FPS)
Frames per second are still images which are run at a high speed in order for it to look like video footage.
The tv screen.
A TV screen is made up of 525 horizontal scan lines which make up each individual frame. Each individual line is made up of *pixels*.
