The method involves receiving two images from an image sensor, and identifying two interest regions respectively in the images, where one region corresponds to one image and another region corresponds to the former region. The regions are compared (440), and an interest mask characterizing a variation of a characteristic of points in the regions is determined (445). Movement of an object is determined from the mask, where the object is partially represented in one of the regions. The movement is analyzed (470), and a preset action is triggered or non-triggered based on the movement analysis. Independent claims are also included for the following: (1) a computer program comprising a set of instructions for performing an interaction detecting method (2) a device comprising units for implemented steps of an interaction detecting method.
Non-rigid tracking-based human-machine interface