Xu Han

Title: Xu Han - Innovator in Camera Synchronization and Face Authentication

Introduction

Xu Han is a notable inventor based in Mountain View, CA (US). He has made significant contributions to the field of camera technology and face authentication. With a total of 2 patents, his work focuses on improving the accuracy and efficiency of facial recognition systems.

Latest Patents

One of Xu Han's latest patents is titled "Camera synchronization and image tagging for face authentication." This disclosure describes systems and techniques for synchronizing cameras and tagging images for face authentication. A dual infrared camera may generate an image stream by alternating between capturing a 'flood image' and a “dot image,” tagging each image with metadata that indicates whether it is a flood or a dot image. The disclosed systems and techniques provide improved synchronization of cameras and tagging of images to promote accurate facial recognition.

Another significant patent is "Automatic exposure and gain control for face authentication." This document outlines techniques and systems that enable automatic exposure and gain control for face authentication. The user device initializes a gain for a near-infrared camera system using a default gain. It computes an update in the initialized gain to provide an updated gain that is usable to scale regions-of-interest toward a target mean-luminance value. The user device dampens the updated gain using hysteresis and sets the initialized gain for the near-infrared camera system to the dampened updated gain.

Career Highlights

Xu Han is currently employed at Google Inc., where he continues to innovate in the field of camera technology and face authentication. His work has the potential to enhance security measures and improve user experiences in various applications.

Collaborations

Some of Xu Han's coworkers include Adarsh Prakash Murthy Kowdle and Zhijun He. Their collaborative efforts contribute to the advancement of technology in their respective fields.

Conclusion

Xu Han's contributions to camera synchronization and face authentication demonstrate his commitment to innovation and technology. His patents reflect a deep understanding of the challenges in facial recognition systems and provide solutions that enhance accuracy and efficiency.