公开(公告)号：US10154190B2

公开(公告)日：2018-12-11

申请号：US15730278

申请日：2017-10-11

Applicant: Google LLC

Inventor： Joel Hesch ,  James Fung

IPC: H04N5/235 ,  H04N5/232 ,  H04N5/225 ,  H04N5/14 ,  H04N9/73 ,  G01B11/25 ,  H04N13/00 ,  H04N13/15 ,  G01S3/00 ,  G01S5/02 ,  H04N5/243

Abstract: An electronic device balances gain and exposure at an imaging sensor of the device based on detected image capture conditions, such as motion of the electronic device, distance of a scene from the electronic device, and predicted illumination conditions for the electronic device. By balancing the gain and exposure, the quality of images captured by the imaging sensor is enhanced, which in turn provides for improved support of location-based functionality.

公开(公告)号：US10529135B2

公开(公告)日：2020-01-07

申请号：US15220847

申请日：2016-07-27

Applicant: GOOGLE LLC

Inventor： Joel Hesch ,  Ashish Shah ,  James Fung

IPC: G09G5/00 ,  G06T19/00 ,  G02B27/01 ,  G06T7/60 ,  G09G5/18

Abstract: A head mounted display (HMD) adjusts feature tracking parameters based on a power mode of the HMD. Examples of feature tracking parameters that can be adjusted include the number of features identified from captured images, the scale of features identified from captured images, the number of images employed for feature tracking, and the like. By adjusting its feature tracking parameters based on its power mode, the HMD can initiate the feature tracking process in low-power modes and thereby shorted the time for high-fidelity feature tracking when a user initiates a VR or AR experience at the HMD.

公开(公告)号：US10275945B2

公开(公告)日：2019-04-30

申请号：US15664754

申请日：2017-07-31

Applicant: GOOGLE LLC

Inventor： Johnny Chung Lee ,  Joel Hesch ,  Ryan Hickman ,  Patrick Mihelich ,  James Fung

IPC: G09G5/00 ,  G06T19/00 ,  H04L29/06 ,  H04W4/02 ,  H04W4/04 ,  H04L29/08

Abstract: An electronic device includes at least one sensor, a display, and a processor. The processor is configured to determine a dimension of a physical object along an axis based on a change in position of the electronic device when the electronic device is moved from a first end of the physical object along the axis to a second end of the physical object along the axis. A method includes capturing and displaying imagery of a physical object at an electronic device, and receiving user input identifying at least two points of the physical object in the displayed imagery. The method further includes determining, at the electronic device, at least one dimensional aspect of the physical object based on the at least two points of the physical object using a three-dimensional mapping of the physical object.