Motion capture

Technology

Introduction• Motion capture is the process of recording human movement

through specialized camara’s and mapping them into a character model

• Motion capture technology involves sensing,digitizing,andrecording that object in motion

• It is also known as MO-CAP, Virtual, theater, Real-time animation or performance Animation

The Birth Of Motion Capture• Historically motion

capture in animated movies was created using the extension of “ROTOSCOPING” technique

•A Rotoscoping is a device that enables animation to trace live action movement,frame by frame,for use in animation

ROTOSCOPING

• Capture Video :

Rotoscoping works by first capturing a video of a real actor around props that resembles elements of scene

ROTOSCOPING

ROTOSCOPING• Tracing :

• Animation then

trace over each

frame of the

recorded video

this would result

in a figure that

moved in a very

realistic fashion

Post Processing :

Finally true animated figured would be colored and then integrated with various background layers to create the final shot

Mocap Techniques• Optical• Magnetic• Mechanical

Optical

Infrared camera

Marker Placement

• Location should move rigidly with joints

• Stay away from bulging muscles

Magnetic

Mechanical

• Entertainment• Medicine• Arts/Education• Science/Engineering

Entertainment : Live Action Films•Computer generated Characters in live action

films

Entertainment : 3D Computer animations

• Characters in computer animated films(eg.Avatar, The Dawn of The Planet of the Apes,Monster Heros)

• Video games by electronic Arts,Gremlin,id,RARE,Square,Kohami,Namco and other(eg. Enemy Territory)

Entertainment : video games

Medicine• Medicine(eg . Gait analysis,rehabilitation)• Sports medicine(eg . Injury prevention,performance

analyses,performance enhancement)

Gait analysis

Science/Engineering

•Engineering (eg. Biped robot developments)•Military (eg. Field exercises,Virtual

instructors,and role-playing games)

• Markerless MOCAP• Cheaper MOCAP• MOCAP as Input to large Display

Conclusion

• Motion Capture(MOCAP) is an effective 3D Animation tool for realistically Capturing human motion