Control device and detection system

2 The controller according to claim 1, wherein

• the target determination unit
• performs image processing of extracting a moving workpiece, based on the plurality of images, and removing the moving workpiece from a latest image among the plurality of images,
• performs detection processing for detecting a workpiece on the latest image in which the moving workpiece is excluded, and
• determines, as the target for the work, a workpiece detected by the detection processing.

The controller according to claim 2, further comprising

• a setting unit configured to set a parameter used in the image processing, wherein
• the parameter includes at least one of
• a first parameter for setting how many pixels or more a workpiece is moved between successive images among the plurality of images to extract the workpiece as the moving workpiece, and
• a second parameter for setting a size of a margin region needed to be added to, as a region to be excluded from the latest image, a periphery of a pixel region of the moving workpiece.

A detection system comprising:

• a visual sensor;
• an image acquisition unit configured to acquire, from the visual sensor, a plurality of images of workpieces successively captured by the visual sensor;
• and
• a target determination unit configured to determine a workpiece in a stationary state as a target for work by an industrial machine, based on the plurality of images.