Techniques

Persistence of Vision:

Persistence of vision is a commonly-accepted although somewhat controversial theory which states that the human eye always retains images for a fraction of a second (around 0.04 second). This means that everything we see is a subtle blend of what is happening now and what happened a fraction of a second ago. 

Stop- frame: 

Stop motion (also known as stop frame) is an animation technique to make a physically manipulated object appear to move on its own. The object is moved in small increments between individually photographed frames, creating the illusion of movement when the series of frames is played as a continuous sequence.

Frame rates:

Frame rate (also known as frame frequency) is the frequency (rate) at which an imaging device produces unique consecutive images called frames. 

Examples Of Stop Motion

Ipad Advertisement Stop Motion

http://www.youtube.com/watch?v=sr8TaJsl8TA&safe=active