METHOD AND DEVICE FOR THE RECORDING OF BODY MOVEMENTS

摘要

The invention relates to a method for recording the position, location or movement of a body part of a patient and a device for recording the position, location or movement of a body part or a medical instrument. According to the invention, a graphic marker is connected with the body part or the instrument and an image of the body comprising the graphic marker is generated by an image recording camera (5, 6, 7). The image is processed by a processor device (14) as an image file. The invention is characterized in that at least one geometric size characteristic of the graphic marker is known, wherein the processor device (14) determines the position, location and/or movement of the graphic marker in the three-dimensional space and in a quantitative manner relative to the image recording camera (5, 6, 7) by means of the known size characteristic. The invention offers, without the need of manual calibration of the measuring system, a substantial automatization and a high measuring precision during the determination of position and movement in the three-dimensional space. Simultaneously, the expenditure on equipment can be reduced and the reaction to the object or body part to be measured or to the patient can be minimized.

主权项

1. A method for recording of position, location or movement of at least one part of a body of a patient arranged in an object space by means of electronic image recognition using at least one image recording camera (5, 6, 7), the method comprising the following process steps:
a) Connecting at least one graphic marker with at least one body part, wherein at least one geometrical size characteristic of the graphic marker is known; b) Generating an image of at least the area of the body part containing the graphic marker by means of the image recording camera; c) Transferring the image as an image file into an electronic processor device (14); d) In the image space of the image file, localizing of image of the graphic marker contained in the image file by means of an application of an automated image recognition procedure to the image file; e) Determining the size characteristic of the graphic marker in the image space; f) Determining of position and/or location of the graphic marker in the object space relative to the image recording camera (5, 6, 7) by means of the size characteristic in the image space and in the object space; g) Transferring the determined data regarding the position of the graphic marker in the object space into a data storage.