Motion analysis

Applications of motion analysis can be found in rather diverse areas, such as surveillance, medicine, film industry, automotive crash safety,[1] ballistic firearm studies,[2] biological science,[3] flame propagation,[4] and navigation of autonomous vehicles to name a few examples.

Each visible point in the scene is projected along a straight line that passes through the camera aperture and intersects the image plane.

In the areas of medicine, sports,[5] video surveillance, physical therapy,[6] and kinesiology,[7] human motion analysis has become an investigative and diagnostic tool.

Most efforts in this area rely on state-space approaches, in which sequences of static postures are statistically analyzed and compared to modeled movements.

Tracking relies on the correspondence of image features between consecutive frames of video, taking into consideration information such as position, color, shape, and texture.

Edge detection can be performed by comparing the color and/or contrast of adjacent pixels, looking specifically for discontinuities or rapid changes.

[11] Using high speed video cameras and motion analysis software, one can monitor and analyze assembly lines and production machines to detect inefficiencies or malfunctions.

Manufacturers of sports equipment, such as baseball bats and hockey sticks, also use high speed video analysis to study the impact of projectiles.

[12] The object and feature detecting capabilities of motion analysis software can be applied to count and track particles, such as bacteria,[13][14] viruses,[15] "ionic polymer-metal composites",[16][17] micron-sized polystyrene beads,[18] aphids,[19] and projectiles.