Yanmei Xie

Title: Yanmei Xie: Innovator in Depth Camera Technology

Introduction

Yanmei Xie is a prominent inventor based in Xi'an, China. He has made significant contributions to the field of depth camera technology, holding a total of 3 patents. His innovative work focuses on enhancing the accuracy and functionality of structured light depth cameras, particularly in smartphones.

Latest Patents

One of Yanmei Xie's latest patents is a self-correction method and device for structured light depth cameras in smartphones. This invention includes a self-correction device that consists of an infrared laser speckle projector, an image receiving sensor, a self-correction module, a depth calculating module, and a mobile phone application processing unit. The projector projects a speckle pattern, and a feature block is set in a reference speckle image. The image receiving sensor acquires an input speckle image, and an optimal matching block corresponding to the feature block is searched through a similarity criterion. This process allows for adjustments to be made when the optical axes of the projector and image sensor change, ensuring that an optimal matching relation is always found.

Another notable patent is a depth information acquisition method and device. This method determines the relative geometric position relationship between a Time-of-Flight (ToF) camera and left and right cameras in a binocular setup. It involves collecting depth maps generated by the ToF camera and images from the two cameras, converting the depth map into a binocular disparity value, and mapping pixels to obtain a sparse disparity map. This process ultimately leads to the generation of a dense disparity map, providing more accurate depth information.

Career Highlights

Yanmei Xie has worked at Xi'an Jiaotong University and Ningbo Yx Information Technology Co., Ltd. His experience in these institutions has allowed him to develop and refine his innovative ideas in depth camera technology.

Collaborations

Throughout his career, Yanmei has collaborated with notable colleagues, including Chenyang Ge and Huimin Yao. These partnerships have contributed to the advancement of his research and inventions.

Conclusion

Yanmei Xie's contributions to depth camera technology demonstrate his commitment to innovation and excellence in the field. His patents reflect a deep understanding of the complexities involved in depth information acquisition and correction methods.