3 results about "Point tracking" patented technology

The invention discloses a repositioning method, apparatus and device for a camera pose tracking process, and a storage medium, and belongs to the field of augmented reality. The method comprises the steps that when a target image meets a repositioning condition, a front-end program is used for switching the target image into an (i+1)th mark image, and sends the target image to a back-end program;the front-end program obtains a current image collected after the target image, and performs feature point tracking on the current image relative to the target image to obtain a first pose parameter;the back-end program conducts re-positioning on the target image to obtain a second pose parameter, and sends the second pose parameter to the front-end program; and the front-end program calculates acurrent pose parameter of the current image according to the first pose parameter and the second pose parameter. According to the repositioning method, apparatus and device, even if the time for a re-positioning result of the target image by the back-end program is relatively long, a positioning result of the current image also can be corrected, so that a relatively good repositioning effect is guaranteed.

The invention discloses a line-of-sight tracking method, a line-of-sight tracking system and line-of-sight tracking equipment of general head-mounted equipment based on binocular measurement. The binocular measurement equipment includes an imaging display device, a line-of-sight tracking device, and an infrared-light generation device. A visual-focus-point tracking device includes an infrared reflection lens and miniature infrared cameras. The method contains the following steps: image data preprocessing; offline measurement equipment calibration; online measurement equipment calibration; andline-of-sight direction measurement and gaze point measurement. The method and the equipment can realize technical effects of improving calibration precision, reducing calibration time, and then improving an experience effect of a user in interaction of the general head-mounted equipment.