Beijing Jingdong Shangke Information Technology Co., Ltd.

Jd.com American Technologies Corporation

Yuzhang Wu

Yi Xu

Hui Zhou

Shanglin Yang

Dan Miao

A method for simultaneous localization and mapping. The method includes the step of detecting two-dimensional (2D) feature points from a current frame captured by a camera; matching the 2D feature points from the current frame directly to three-dimensional (3D) map points in a 3D map, so as to obtain correspondence between the 2D feature points and the 3D map points; and computing a current pose of the camera based on the obtained correspondence. Each of the 2D feature points and the 3D map points has a feature descriptor. The step of matching is performed by comparing the feature descriptors of the 2D feature points and the feature descriptors of the 3D map points.

System and method for monocular simultaneous localization and mapping

A system and method for realizing augmented reality. The system includes a visual sensor configured to capture images of an environment and a computing device in communication with the visual sensor. The computing device has a processor and a storage device storing computer executable code. The computer executable code, when executed at the processor, is configured to: identify two-dimensional (2D) objects in the captured images; construct a three-dimensional (3D) map of the environment using the captured images; define 3D objects in the 3D map by mapping the 2D objects identified in the captured images to the corresponding points in the 3D map; and render a 3D model on the 3D map based on the 3D objects defined in the 3D map.

System and method for mobile augmented reality

A system and method for realizing multi-user augmented reality. The system includes a first and second computing devices in communication with each other, and respectively constructing a first and a second three-dimensional (3D) maps of a same environment at different viewing angles and positions. The first and second computing devices are configured to assign one of the 3D maps as a reference map, and align the other one of the 3D maps to the reference map, such that the 3D maps have the same coordinate system. A 3D model of a product is also placed and rendered in the two 3D maps, and the operation of the 3D model in one computing device is reflected in the other computing device at real time.

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Santa Clara, CA, United States of America

Yuzhang Wu