Stop Motion Animations are those which are used to describe the animations created from the real-world objects. These are divided into different categories and they are:

>> Puppet animation which includes puppet figures based on the real-world interaction.
>> Clay animation which uses images made up of clay or a similar material.
>> Cutout animation which works on the images based on two-dimensional pieces of material.
>> Graphic animation which uses photographs, newspaper clippings, magazines, etc. and many more.

For more detail on it you may visit the link : http://en.wikipedia.org/wiki/Animation