US 11,758,115 B2
Method for the user-specific calibration of a display apparatus, wearable on the head of a user, for an augmented presentation
Cristina Alvarez Diez, Aalen (DE); Momchil Davidkov, Aalen (DE); and Holger Wegendt, Moegglingen (DE)
Assigned to tooz technologies GmbH, Aalen (DE)
Appl. No. 16/980,759
Filed by tooz technologies GmbH, Aalen (DE)
PCT Filed Mar. 13, 2019, PCT No. PCT/EP2019/056325
§ 371(c)(1), (2) Date Sep. 14, 2020,
PCT Pub. No. WO2019/175269, PCT Pub. Date Sep. 19, 2019.
Claims priority of application No. 102018105917.5 (DE), filed on Mar. 14, 2018.
Prior Publication US 2021/0289192 A1, Sep. 16, 2021
Int. Cl. G09G 5/00 (2006.01); H04N 13/327 (2018.01); H04N 13/344 (2018.01); G02B 27/00 (2006.01); G02B 27/01 (2006.01); G06F 3/01 (2006.01)
CPC H04N 13/327 (2018.05) [G02B 27/0093 (2013.01); G02B 27/0172 (2013.01); G06F 3/013 (2013.01); H04N 13/344 (2018.05); G02B 2027/011 (2013.01); G02B 2027/0129 (2013.01); G02B 2027/0138 (2013.01); G02B 2027/0178 (2013.01); H04N 2213/008 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method for user-specific calibration of a display apparatus placeable on the head of a user for an augmented presentation, wherein the display apparatus comprises a holding apparatus which is placeable on the head of a user, wherein a camera is attached to the holding apparatus, wherein an image generating module is attached to the holding apparatus and generates an image, and wherein an imaging optical unit is attached to the holding apparatus and depicts the generated image when the holding apparatus is in the state in which it is placed on the head of the user in such a way that the user can perceive it with at least one eye as a virtual image in overlay with the real environment, the method comprising:
A) in a basic calibration procedure in the state of the holding apparatus in which it is placed on the head of the user, ascertaining a position of the at least one eye in all three spatial directions relative to the display apparatus, and storing the position in the display apparatus as adjustment data, the image generating module generating the image taking into account the adjustment data; and
B) in a fine calibration procedure in the state of the holding apparatus in which it is placed on the head of the user:
B1) showing a virtual marker to the user as a virtual image such that the virtual marker is presented as close as possible to a specified location of a real object based on the adjustment data stored in the display apparatus, and
B2) deriving correction data based upon positioning information which specifies a relative movement of the virtual marker and the real object in order to attain for the user an overlay of the virtual marker with the specified location of the real object that is as exact as possible, and
B3) after carrying out steps B1) and B2), correcting the adjustment data with the correction data obtained in this way and stored in the display apparatus as new adjustment data.