Line of Sight Method for Tracker Calibration in Projection-Based VR Systems
نویسندگان
چکیده
This paper describes a method for correcting static errors in the position component of a 6-degree-of-freedom tracker in a projection-based VR system. This method allows users to observe where errors in the environment are signiicant and correct them interactively. Later touch-up correction is possible as well. This technique is based on superimposing targets in physical space with their virtual images. The only hardware addition to the VR system required is a few precisely placed targets.
منابع مشابه
Comprehensive Tracker Based Display Calibration for Holographic Optical See-Through Head-Mounted Display
A holographic display system is able to offer an immersive 3D experience with a controllable focus cue that matches the depth information of virtual content. Proper calibration of an OST-HMD must take into account the specific features of that HMD. Existing calibration methods, however, cannot fully capture the optical characteristics of holographic display systems. With the aid of tracking sys...
متن کاملEstimation of LOS Rates for Target Tracking Problems using EKF and UKF Algorithms- a Comparative Study
One of the most important problem in target tracking is Line Of Sight (LOS) rate estimation for using from PN (proportional navigation) guidance law. This paper deals on estimation of position and LOS rates of target with respect to the pursuer from available noisy RF seeker and tracker measurements. Due to many important for exact estimation on tracking problems must target position and Line O...
متن کاملExtended-range hybrid tracker and applications to motion and camera tracking in manufacturing systems
Extendedor long-range tracking effectiveness is crucial for the automation of manufacturing systems. In this paper, we conceptualize and develop a prototype long-range hybrid tracker based on a combination of a laser tracker and a magnetic tracker and apply the concept to the following two applications: 1) extended-range human motion tracking on factory floors and 2) factory floor object recons...
متن کاملMaximum Power Point Tracker for Photovoltaic Systems Based on Moth-Flame Optimization Considering Partial Shading Conditions
The performance of photovoltaic (PV) systems is highly dependent on environmental conditions. Due to probable changes in environmental conditions, the real-time control of PV systems is essential for exploiting their maximum possible power. This paper proposes a new method to track the maximum power point of PV systems using the moth-flame optimization algorithm. In this method, the PV DC-DC co...
متن کاملOptical alignment of the Global Precipitation Measurement (GPM) star trackers
The optical alignment of the star trackers on the Global Precipitation Measurement (GPM) core spacecraft at NAS A Goddard Space Flight Center (GSFC) was challenging due to the layout and structural design of the GPM Lower B us Structure (LBS) in which the star trackers are mounted as well as the presence of the star tracker shades that blocke d line-of-sight to the primary star tracker optical ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 1998