Motion Capture Technology
Motion capture
technology is a good example of how digital techniques are being
applied to the video game (and related) industries to allow more
convincing visualizations of imaginary or composite images. For
motion capture you use human actors who are dressed in a leotard
with integral reflective or magnetic markers. The actor performs
the actions that are required, and the digital cameras - or array
of cameras - capture the motion of the reflective markers.
Computer Processing with Human Intervention
You subject the data to a computer process that converts this
motion into a composite figure. You then modify this composite
figure by normal computer animation software.
The end product gives
the effect of an animated character acting directly with human
actors. Gollum, in the Lord of the Rings, was shot in this fashion,
giving an absolutely life-like image of a composite character.
Same things go for video games. Paul Pierce (shown on the left)
is rigged for motion capturing for the XBox game NBA Inside Drive.
Motion capturing techniques
are very effective, but the computer processing needs much human
intervention, and if there is any error in the data, you can find
it more effective to re-shoot the whole scene rather than correct
the data. However, motion capture technology is so much more effective
and realistic than traditional techniques, and ultimately less
time consuming, that its future looks assured in movies