#multimedia
All Messages
Progressive vs. Interlaced
According to Nyquist theorem, for correct sampling we must use a sampling rate equal to at
least twice the maximum frequency content in the signal. This rate
is called the Nyquist rate.
Nyquist frequency: half of the Nyquist rate.
Sprite animation:
Sprite is a computer graphics term for a two-dimensional bitmap that is integrated into a larger scene, most often in a 2D video game. The term "sprite" is a holdover from older computer and game machines. These older boxes were unable to draw and erase normal graphics fast enough for them to work as games. These machines had special hardware to handle game like objects that needed to animate very quickly. These objects were called "sprites" and had special limitations, but could be drawn and updated very fast. They usually existed in special overlay buffers in the video. These days computers have become generally fast enough to handle sprite like objects without dedicated hardware. The term sprite is still used to represent just about anything in a 2D game that is animated.
Aliasing: In sound and image generation, aliasing is the generation of a false (alias) frequency along with the correct one when doing frequency sampling. For images, this produces a jagged edge, or stair-step effect. For sound, it produces a buzz.
Color Lookup table 2
Color Lookup table 1
By this term is meant either an advanced helper for creating new multimedia presentations or a mechanism to facilitate automatic creation of more useful multimedia documents from existing sources.