Progressive vs Interlaced Scan

 Progressive vs Interlaced Scan


1. What is Progressive and Interlaced scan?
Progressive scan draws all of the lines in a single frame of video sequentially so that each frame contains a complete image that fills the screen. 
In Interlaced scan every other line of an image is displayed in one frame

2. Why does it matter?
It is important because bandwidth must be taken into consideration because only a certain amount of data can be transmitted at once. Interlaced video saves bandwidth by only sending half of a complete frame at once. 

3. Why should we know the difference?
It is important to know the difference between Progressive and Interlaced scan to understand why cable TV has low picture quality and resolution compared to high end TVs and laptops. 














Comments

Post a Comment

Popular posts from this blog

Image
  THE CAMERA-  APERTURE AND IRIS 1. What is aperture? Aperture is the opening of the camera lens through which light passes to enter the camera.  2.  How does it affect exposure? In large aperture, a lot of light passes through the camera lens, resulting in a brighter photograph. In small aperture, very little light enters the camera lens, resulting in a darker photograph. 3. How does it affect depth of field? A large aperture results in large amount of foreground and background blur, creating low depth of field. A small aperture results in small amount of background blur, creating greater depth of field. 4. How do you pick the right aperture for your scene?  The right aperture depends upon how much depth of field and exposure you desire in the picture. 5. Find visual examples of shallow & large depth of field (Internet) SHALOW DEPTH OF FIELD: LARGE DEPTH OF FIELD:                                                                                               
Read more