Define digital human and motion capture
Digital human - Computer simulation of a variety of mechanical and biological aspects of the human body.
Motion capture- The recording of human and animal movement by any means, for example, by video, magnetic or electro-mechanical devices.
Explain how motion capture is used to digitally represent motion
A person wears sensors- either a set of acoustic, inertial, LED, magnetic or reflective marker at each joint. Sensors track the position of the markers as the person moves to develop a digital representation of the motion.
Identify the advantages of motion capture for digitally representing motion
Motion capture can reduce the cost of animation, which otherwise requires the animator to draw either each frame or key frames that are then interpolated. Motion capture saves time and creates more natural movements than manual animation, but is limited to motions that are anatomically possible. Examples are animated super-hero and martial arts.
Explain how motion capture contributes to the development of a digital human
A motion capture session records the movements of the actor, not his or her visual appearance. The captured movements are mapped to a 3D model (human, giant robot) created by a computer artist, to move the model in the same way.
Discuss how digital humans can enhance human factors research
Digital humans can be used to represent joint resistance, discomfort, reach envelopes and visual fields. They can be used, for example, to measure the impact of clothing on human performance.
Explain how digital humans enable the consideration of human factors early in the design cycle
Before a physical prototype- Digital humans allows the design to be optimized for user comfort, visibility and access to controls, that the user population will be able to climb in and out of the vehicle easily and controls and foot pedals are within the reach, that the vehicle can be maintained and the strength required to operate it is within the normal range.
Explain how digital humans can increase the speed of the product development cycle
There can be more design iterations in less time. This results in higher product quality, which meets human requirements more accurately. Digital prototypes are cheaper to produce than physical prototypes. Products are safer as a result of more thorough analysis of safety aspects.
Explain the benefits of using digital humans in developing manufacturing
plants and processes, maintenance and training
Digital humans enable manufacturing plants to be developed more quickly and manual workflow to be optimized. They improve worker safety and reduce compensation costs resulting from accidents. Machines and other equipment can be positioned to optimize cycle time and avoid hazards, etc. See 8.8
Explain the advantages of using digital humans in product marketing
Digital humans can be used in e-commerce to model clothing products. A customer can produce a model corresponding to his or her body shape, size and look. The model can then try on clothing so that the customer can see what it might look like.