公开(公告)号：US20230410344A1

公开(公告)日：2023-12-21

申请号：US17807041

申请日：2022-06-15

Applicant: GOOGLE LLC

Inventor： Eric Turner ,  Idris Syed Aleem ,  Sushant Umesh Kulkarni ,  Rees Anwyl Samuel Simmons ,  Ryan Christopher DuToit

IPC: G06T7/60 ,  G06T7/73

CPC classification number: G06T7/60 ,  G06T2207/30201 ,  G06T7/74

Abstract: A system and method of detecting scale from image data obtained by a computing device together with position and orientation of the computing device is provided. The scale may be used for the virtual selection and/or fitting of a wearable device such as a head mounted wearable device and other such wearable devices. The system and method may include capturing a series of frames of image data, and detecting one or more fixed features in the series of frames of image data. Position and orientation data associated with the capture of the image data is combined with the position data related to the one or more fixed features to set a scale that is applicable to the image data. Scale may be determined without the use of a reference object having known scale, specialized equipment, and the like.

公开(公告)号：US20230236219A1

公开(公告)日：2023-07-27

申请号：US17648572

申请日：2022-01-21

Applicant: GOOGLE LLC

Inventor： Yunwen Zhou ,  Ryan Christopher DuToit ,  Abhishek Kar ,  Konstantine Nicholas John Tsotsos ,  Eric Turner ,  Chao Guo

IPC: G01P21/00 ,  G06T7/50 ,  G06T7/80 ,  G06T7/33 ,  G06T7/20 ,  G01P13/00 ,  G01P15/08

CPC classification number: G01P21/00 ,  G06T7/50 ,  G06T7/80 ,  G06T7/33 ,  G06T7/20 ,  G01P13/00 ,  G01P15/08 ,  G06T2207/20084

Abstract: Disclosed is a method including receiving a depth map estimated using data based on image and data received from a movement sensor as input, generating an alignment parameter based on the depth map, adding the alignment parameter to a pre-calibration state to define a user operational calibration state, generating scale parameters and shift parameters based on features associated with the data received from the image and movement sensor, and calibrating the image and movement sensor based on the user operational calibration state, the scale parameters and the shift parameters.