Method and system for resolving hemisphere ambiguity using a position vector

A technology of position vector and ambiguity, applied in radio wave measurement system, satellite radio beacon positioning system, positioning and other directions

Active Publication Date: 2021-03-16
MAGIC LEAP INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Despite advances in AR and VR systems, there is still a need for better localization systems in the context of AR and VR devices

Method used

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  • Method and system for resolving hemisphere ambiguity using a position vector
  • Method and system for resolving hemisphere ambiguity using a position vector
  • Method and system for resolving hemisphere ambiguity using a position vector

Examples

Experimental program
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Embodiment Construction

[0052] For example, refer to figure 1 , shows an augmented reality scene (4), where a user of AR technology sees a real world park-like setting (6) and a concrete platform (1120) in the background featuring people, trees, buildings. In addition to these items, the user of the AR technology perceives that he "sees" a robot statue (1110) standing on a real world platform (1120) and a flying cartoon-like avatar character (2), which appears to be an avatar of a bumblebee, Even though these elements (2, 1110) do not exist in the real world. The human visual perception system has proven to be very complex, and it is challenging to produce VR or AR technologies that facilitate a comfortable, natural-feeling, rich presentation of virtual image elements among other virtual or real-world imagery elements.

[0053] For example, a head-mounted AR display (or head-mounted display, or smart glasses) is typically at least loosely coupled to a user's head, and thus moves when the user's head...

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Abstract

Embodiments resolve hemisphere ambiguity at a system comprising sensors. A hand-held controller of the system emits magnetic fields. Sensors positioned within a headset of the system detect the magnetic fields. A first position and orientation of the hand-held controller is determined within a first hemisphere with respect to the headset based on the magnetic fields. A second position and orientation of the hand-held controller is determined within a second hemisphere, diametrically opposite the first hemisphere, with respect to the headset based on the magnetic fields. A normal vector is determined with respect to the headset, and a position vector identifying a position of the hand-held controller with respect to the headset in the first hemisphere. A dot-product of the normal vector andthe position vector is calculated, and the first position and orientation of the hand-held controller is determined to be accurate when a result of the dot-product is positive.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to U.S. Provisional Patent Application No. 62 / 702,339, filed July 23, 2018, entitled "SYSTEMS AND METHODS FOR AUGMENTED REALITY," the entire disclosure of which is accessed through is incorporated by reference in its entirety for all purposes as if fully set forth herein. [0003] This application is related to U.S. Patent Application No. 15 / 859,277, entitled "SYSTEMS AND METHODS FOR AUGMENTED REALITY," filed December 29, 2017, which is incorporated by reference in its entirety. technical field [0004] The present disclosure relates to systems and methods for locating the position and orientation of one or more objects in the context of an augmented reality system. Background technique [0005] Modern computing and display technologies have facilitated the development of systems for so-called "virtual reality" or "augmented reality" experiences, in which digitally reproduced images, o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/01G01S19/42G01S5/30
CPCG06F3/0346G06F3/011G06F3/017G06F3/013G01V3/165G06F3/012G06V40/28G06V20/20G06V10/82G06T19/006G06T17/05G06T2210/12G06F3/016
Inventor 万胜
Owner MAGIC LEAP INC
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