Motion Capture Muhammad Bilal K I 180707026 Kanad Niyogi - - PowerPoint PPT Presentation

Motion Capture Muhammad Bilal K I – 180707026 Kanad Niyogi - 180707036

Contents Introduction  History of Motion Capture  Key Frame Animation Vs Motion Capture  Technology  Applications  Advantages  Conclusion  Bibliography 

Introduction  Popularly known as “ Mocap ”  3D representation of a live performance  Performers actions are digitally recorded by cameras which track points on the performer’s body such as hands, head , legs and feet.

HISTORY OF MOTION CAPTURE  Rotoscoping is an animation technique in which animators trace cartoon characters over photographed frames of live performance

 Facial works primarily depend on key frame animation. Body movements and for quicker actions, one largely use mocap.  The amount of work does not vary with the complexity of the sequence.  Using mocap, a single actor can play multiple in the same film.

TECHNOLOGY BEHIND MOTION CAPTURE  Mechanical Motion Capture  Optical Motion Capture  Magnetic Motion Capture

MECHANICAL MOTION CAPTURE  Technique achieved through the use of an exoskeleton.  Each joint is connected to an angular encoder.  The “skeleton data” recorded can be “skinned” to look like any character.  Offers high precision and not being influenced by external factors

OPTICAL MOTION CAPTURE  Optical shooting with several synchronised cameras.  The cameras emit radiation reflected by the markers and then returned to the same cameras  The markers will be viewed as white spots and the position in virtual space can be determined.

MAGNETIC MOTION CAPTURE  Utilize sensors placed on the body to measure the low-frequency magnetic field generated by a transmitter source  The sensors reports position and rotational information.

APPLICATIONS  Entertainments  Medicine  Sports

ENTERTAINMENTS  Motion capture represents the future of digital content creation.  Film, television and interactive media all use motion capture in a growing number of its productions.  In the name industry, manufacturers are using motion capture sytems.

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MEDICINE  Gait analysis is the major application of motion capture in clinical medicine  Motion capture allows clinical to evaluate human motion, without burdening patients with body suites or tracking devices.

SPORTS  Motion capture is ideal for a wide range of sports applications in research, rehabilitation, physical education and practice.  Developing Digital sports Games  Also allows to learn more about injury mechanisms and prevention.

ADVANTAGES  More rapid, sometimes even real time results can be obtained  Complex movement and realistic physical interactions can be recreated in a physically accurate manner.  Costumes, make-ups, body size and age can be changed to whatever is needed.  The Versatility and flexibility of the mocap system makes it suitable for many applications within psychology

CONCLUSION  The purpose of these technologies is to allow us to create characters and effects that we could not do before, and do it more realistically and efficiently than ever before  They allow us to create and interact with virtual worlds and blend the lines between reality and fantasy  Motion capture tools are becoming more flexible and more powerful these days.

BIBLIOGRAPHY http://web.mit.edu  http://www.siggraph.org  http://www.metamotion.com  http://www.postmagazine.com 

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