Other

Usens, Inc.

Polarization Solutions, LLC

Xu Zhang

Thomas Tombler

Qihong Wu

Yue Fei

Gengyu Ma

Martin Moskovits

Sheng Liu

Wentao Mao

Linh Hong Nguyen

Shiaw-Wen Tai

Robert Koefer

Qiang Fu

Xiaohua Du

A tracking system is disclosed. The system may comprise a processor and a non-transitory computer-readable storage medium coupled to the processor and storing instructions that, when executed by the processor, cause the system to perform a method. The method may comprise training a detection model and an extraction model, capturing one or more images of at least a portion of an object, detecting the portion of the object in each of the one or more images through the trained detection model, tracking the detected portion of the object in real-time, obtaining 2D positions of one or more locations on the tracked portion of the object through the trained extraction model, and obtaining 3D positions of the one or more locations on the tracked portion of the object based at least in part on the obtained 2D positions.

Method and system for 3D hand skeleton tracking

System and method to construct vertical and/or short takeoff and landing (V/STOL) aerial vehicles capable of being folded into compact size, and capable of be combined with one or more such vehicles to form bigger composite aerial vehicles. Airframe of the vehicle comprises a plurality of wings on lateral or periphery of thrust generators, wherein arrangements of wings make it possible to optionally fold wings without moving thrust generators. Folding transforms such vehicles into ground vehicles which can share roads and house parking lots with conventional ground vehicles. Therefore such vehicles can be used as V/STOL flying cars. Means are provided for attaching to and detaching from one or more similarly equipped vehicles in flight or before takeoff, so that multiple vehicles can form a large composite vehicle. Compactness, combinability and V/STOL capability enable versatile applications.

System and method for compact and combinable aerial vehicle capable of vertical/short takeoff and landing

Methods for forming a metal grating include providing a first grating including a plurality of grating lines formed from a dielectric material, each grating having a pair of sidewalls, facing sidewalls of adjacent grating lines being separated by corresponding trenches, the grating lines and trenches forming a grating surface; forming a layer of a metal on the grating surface, where the metal layer has a constant thickness and conforms to the grating surface; and removing portions of the metal layer between sidewalls of adjacent grating lines of the first grating to form a metal grating having grating lines formed from the metal, the grating lines of the metal grating corresponding to the portions of the metal layer adjacent the sidewalls of the grating lines of the first grating. The metal grating has a pitch of 200 nm or less, a depth of 50 nm or more, and the grating lines of the metal grating have an aspect ratio of 10-to-1 or more.

Short pitch metal gratings and methods for making the same

In general, in one aspect, the invention features an apparatus that includes a plurality of optical elements arranged to form an image of an object. The elements include a first element comprising one or more regions of a polarizing material, the regions being shaped as one or more visual features, a polarizer, and a mounting assembly including a first mount for the first element and a second mount for the polarizer. At least the first or second mount is rotatable with respect to an optical axis between a first orientation and a second orientation. In the first orientation, the visual features are visible in the image of the object and, in the second orientation, the visual features are not visible in the image of the object.

Patterned polarization-sensitive optical elements and devices using the same

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Montville, NJ, United States of America

Xu Zhang