Google Inc.

Clayton Kimber

Ian Rickard Muldoon

Srivatsan Ravindran

Jeremy Swerdlow

Adrian Wong

John Stuart Fitch

Ozan Cakmakci

Adarsh Prakash Murthy Kowdle

Lu Gao

Matthew Thomas Valente

Xu Han

Zhijun He

Kyle Skelton

Jae Min Purvis

Po-Jen Chang

Konstantin Gromov

Wen Yu Chien

Gopal Parupudi

This disclosure describes systems and techniques for synchronizing cameras and tagging images for face authentication. For face authentication by a facial recognition model, a dual infrared camera may generate an image stream by alternating between capturing a 'flood image' and a “dot image” and tagging each image with metadata that indicates whether the image is a flood or a dot image. Accurately tagging images can be difficult due to dropped frames and errors in metadata tags. The disclosed systems and techniques provide for the improved synchronization of cameras and tagging of images to promote accurate facial recognition.

Camera synchronization and image tagging for face authentication

A system for tracking a position and an orientation of an external device such as a smart watch or a handheld controller relative to a head mounted display (HMD) device is provided. A combination of active markers and passive markers on the external device may be detected by a point tracking camera of the HMD to collect position data for the external device relative to the HMD. Acceleration and/or orientation data of the external device relative to the HMD may be collected from an inertial measurement unit(s) (IMU(s)) of the external device and/or the HMD. The fusion of the position data with the data collected by the IMU(s) may allow for tracking of the external device relative to the HMD.

Low-power semi-passive relative six-degree-of-freedom tracking

Low-power semi-passive relative six-degree-of- freedom tracking

A head mounted display (HMD) system includes a display for emitting light toward an eye-ward side of the system and which allows both ambient light and emitted light to reach an eye of a user. The system provides augmented reality (AR) based viewing and includes a rotatable substrate supporting a set of light emitting elements (). Each light emitting element is oriented toward a world side of the HMD system. A rotatable reflective surface is positioned on the world side of the set of the light emitting elements. The reflective surface reflects emitted light toward a user eye. A motor, coupled to the rotatable substrate and the rotatable reflective surface, rotates these elements about a common axis and a display driver selectively activates the light emitting elements during this rotation in accordance with an illumination sequence so as to provide an image.

Head mounted display with mechanical scanning

Growing community of inventors

Mountain View, CA, United States of America

Clayton Kimber