[Retracted] Application of Machine Learning to Badminton Action Decomposition Teaching

Table 1

Requirements for each part of the machine vision system.

Names	Requirements
Lighting systems	Light sources: incandescent lamps, fluorescent lamps, mercury lamps, and sodium lamps; Irradiation methods: backlighting, forward lighting, structured lighting, and frequency flash lighting
Camera lens
High-speed cameras	Lens selection conditions: (a) focal length, (b) target height, (c) projected image height, (d) magnification, (e) distance from the projected image to target, (f) graphic center point/node, and (g) image distortion
Image acquisition cards	The interface requirements of the camera: black and white, color, analog, or digital
Visual processors	The high configuration is the programmable logic controller (PLC)