MOVEMENT ANALYSIS AND/OR TRACKING SYSTEM

摘要

The present invention relates to a system (1) for analysing and/or tracking the movement of moved or moving objects (5) which are provided with a plurality of marker elements (10) which actively or passively glow in different colours and each of which (10) glow in a defined colour and with a round or elliptical geometry, at least comprising: -at least one camera (30) for recording the movements of the object(s) (5) which are continuously stored as digital colour images (FB) using at least one colour image sensor (40); -a first transformer unit (50) which continuously converts the digitally stored colour images (FB) into RGB images of the so-called RGB colour space, with the result that three colour intensities (R, G, B) are present for each colour pixel (pixel P); -a greyscale image production unit (60) which, for each colour pixel (P), adopts the maximum of the three colour intensities (R or G or B) as the greyscale value (GW) and continuously stores it as a monochromatic greyscale image (GB) in a manner corresponding to the RGB images; -a localization unit (70) which exclusively compares each greyscale value (GW) with a defined threshold value (SW) and stores greyscale values (GW) which are above the threshold value (SW) as a member of a pixel cloud (PW) which represents a potential marker element; -a measuring unit (80) which measures the geometry of every pixel cloud (PW) exclusively in the greyscale image (GB) and deletes pixel clouds (PW) again which can be excluded as marker elements (10); and -an identification unit (90) which determines the colour of the pixel clouds (PW), which have been confirmed as marker elements (10) exclusively in the greyscale image (GB), in the digitally stored colour image (FB). Unlike in the prior art, the system (1) according to the invention makes it possible, for the first time, for a plurality of marker elements (10) which glow in different colours, each in a defined colour and with a round or elliptical geometry, to be tracked in a fully automatic manner and for angles and other measurement data to be acquired for movement analyses. The system (1) according to the invention can locate video data relating to the marker elements (10), which are preferably spherical, in a manner close to real time for the first time and can track said data over time.