A position and tracking system for radio-based localization in an operating room, includes a receiver, a mobile cart, a processor, and a memory coupled to the processor. The mobile cart includes a robotic arm and a transmitter in operable communication with the receiver. The memory has instructions stored thereon which, when executed by the processor, cause the system to receive, from the transmitter, a signal including a position of the mobile carts in a 3D space based on the signal communicated by the transmitter and determine a spatial pose of the mobile carts based on the received signal.

The system and method of attitude determination by pulse beacon and extremely low cost inertial measuring unit. A pulse beacon is used to generate a plurality of pulses detected by a detector or receiver located on the rear of a projectile such that direction of arrival can be determined. A synchronized clock proved for velocity and range information. Altitude can also be determined and may use an altimeter or the like. The use of a low cost IMU is possible with internal calibration by the system. Real-time attitude information provides for correction for crosswind and other drift enabling the system to have less down range dispersion.

The system and method of attitude determination by pulse beacon and extremely low cost inertial measuring unit. A pulse beacon is used to generate a plurality of pulses detected by a detector or receiver located on the rear of a projectile such that direction of arrival can be determined. A synchronized clock proved for velocity and range information. Altitude can also be determined and may use an altimeter or the like. The use of a low cost IMU is possible with internal calibration by the system. Real-time attitude information provides for correction for crosswind and other drift enabling the system to have less down range dispersion.

A tilt and direction detecting apparatus and an antenna assembly using the same are disclosed. An embodiment of the present disclosure provides a tilt and direction detecting apparatus comprising: a dome structure including a spherical surface; a plurality of optical sensors configured to measure the intensity of sunlight; and a flexible circuit printed board configured to enclose at least a portion of the spherical surface, wherein, the flexible circuit board is disposed on the spherical surface such that the plurality of optical sensors are oriented in different directions from each other.

An optical imaging system for imaging a target during a medical procedure is disclosed. The optical imaging system includes: a first camera for capturing a first image of the target; a second wide-field camera for capturing a second image of the target; at least one path folding mirror disposed in an optical path between the target and a lens of the second camera; and a processing unit for receiving the first image and the second image, the processor being configured to: apply an image transform to one of the first image and the second wide-field image; and combine the transformed image with the other one of the images to produce a stereoscopic image of the target.

This invention disclosures a six degree-of-freedom (DOF) measuring system and method. The measuring system comprises a tracking measurement device and a target. The tracking measurement device includes a processor, a camera and two rotation optical components connected with the processor respectively, which are arranged in sequence. The camera boresight and the optical axis of two rotation optical components are coaxial, and each rotation optical component can rotate independently. The target is mounted on the tested object, which contains at least three markers with known distance constraints. In addition, at least one marker does not coincide with the midpoint of the line connecting any two of the remaining markers. Compared with the prior technologies, this invention realizes a dynamic real-time measurement of six DOF for the tested object. In the process of measurement, only the target is fixed on the object. The target has the advantages of simple structure, less influence on the actual operation of the target and easy use. Meanwhile, the calculation process of 6 DOF measurement is simplified, and the real-time and reliability of the measurement method is improved.

An event driven sensor (EDS) is used for simultaneous localization and mapping (SLAM) and in particular is used in conjunction with a constellation of light emitting diodes (LED) to simultaneously localize all LEDs and track EDS pose in space. The EDS may be stationary or moveable and can track moveable LED constellations as rigid bodies. Each individual LED is distinguished at a high rate using minimal computational resources (no image processing). Thus, instead of a camera and image processing, rapidly pulsing LEDs detected by the EDS are used for feature points such that EDS events are related to only one LED at a time.

Video processing, including: generating first tracking information using a first tracking system coupled to a camera which moves during a video sequence forming a shot including multiple frames, wherein the first tracking information includes information about six degrees of freedom motion of the camera synchronized to the multiple frames in the shot; generating second tracking information using a second tracking system coupled to the camera which moves during the video sequence, wherein the second tracking information includes information about six degrees of freedom motion of the camera synchronized to the multiple frames in the shot; generating, by a tracking tool, a timeline with a first track for the first tracking information and a second track for the second tracking information, wherein the tracking tool is coupled to the first tracking system and the second tracking system, and receives the first tracking information and the second tracking information.

A method for assisting the location of a target for a first user equipped with an observation device includes an augmented reality observation device associated with a first user reference frame. According to this method, a reference platform associated with a master reference frame is positioned on the terrain, the reference platform is observed from at least one camera worn by the first user, the geometry of the observed platform is compared with a numerical model of same and the orientation and location of the first user reference frame is deduced with respect to the master reference frame. It is then possible to display, on an augmented reality observation device, at least one virtual reticle locating the target.

Disclosed embodiments provide systems and methods for simulation of firearm discharge and training of armed forces and/or law enforcement personnel. A motion tracking system tracks motion of one or more users. In embodiments, the users wear one or more sensors on their bodies to allow tracking by the motion tracking system. A scenario management system utilizes position, orientation, and motion information provided by the motion tracking system to evaluate user performance during a scenario. A weapon simulator includes sensors that indicate position of the weapon and/or orientation of the weapon. The weapon simulator may further provide trigger activation indications to the scenario management system. In embodiments, the scenario management system generates, plays, reviews, and/or evaluates simulations. The evaluation can include scoring based on reaction times, posture, body position, body orientation, and/or other attributes.