User-defined virtual interaction space and manipulation of virtual cameras with vectors

Patent metadata

Field	Value
Publication number	US-2015169076-A1
Application number	US-201414572690-A
Country	US
Kind code	A1
Filing date	Dec 16, 2014
Priority date	Dec 16, 2013
Publication date	Jun 18, 2015
Grant date	—

Abstract

The technology disclosed relates to creating user-defined interaction spaces and modalities in a three dimensional (3D) sensor space in response to control gestures. It also relates to controlling virtual cameras in the 3D sensor space using control gestures and manipulating controls of the virtual cameras through the control gestures. In particular, it relates to defining one or more spatial attributes of the interaction spaces and modalities in response to one or more gesture parameters of the control gesture. It also particularly relates to defining one or more visual parameters of a virtual camera in response to one or more gesture parameters of the control gesture.

First claim

1 . A computer implemented method of interacting with a virtual vector field in a three dimensional (3D) sensor space, the method including:
defining a vector field at least responsive to curling of fingers of a hand and degrees of freedom between fingers of the curled fingers, wherein the vector field is centered with respect to a fixed point proximate to the hand and magnitude of the vector field is calculated at least in part by a scale of curling of the fingers and degrees of freedom between the fingers; constructing a virtual sphere along a plurality of points on contour of curled fingers in the 3D sensor space; extending radially, inward or outward, one or more interaction vectors on the virtual sphere, wherein magnitudes of the interaction vectors are determined by radius of the virtual sphere; and compounding interactions of the vector field with the interaction vector based on their respective magnitudes, wherein the interactions include at least one of adding, multiplying, or taking dot-product of at least one vector in the vector field and the interaction vector.

2 . A computer implemented method of manipulating virtual objects in a three dimensional (3D) sensor space, the method including:
creating a virtual vector field in response to a control gesture that makes swirling motions in a three dimensional (3D) sensor space; creating a plurality of virtual objects in response to subsequent control gestures that make circular sweeps in the 3D sensor space and define object vectors on respective virtual objects; and compounding interactions of the vector field with the object vectors based on their respective magnitudes, wherein the interactions include at least one of adding, multiplying, or taking dot-product of at least one vector in the vector field and an object vectors.

3 . The method of claim 2 , wherein the virtual vector field is a vortex.

4 . The method of claim 3 , wherein size of the vortex is directly proportional to scale of the swirling motions in the 3D space.

5 . A computer implemented method of performing augmented interactions with virtual objects in a three dimensional (3D) sensor space, the method including:
creating a synthetic space by overlaying a virtual space on a physical space; defining vectors on portions of the synthetic, virtual, and physical space; and compounding augmented interactions of vectors in the physical space with vectors in the synthetic space, wherein the augmented interactions modify at least one of positional, material, or other property of virtual objects in synthetic space.

6 . The method of claim 5 , wherein the interactions include at least one of adding, multiplying, or taking dot-product of at least one vector in the physical space and at least one vector in the synthetic space.

7 . The method of claim 5 , further comprising determining a difference between a first object within the augmented reality and a second object within the augmented reality.

8 . The method of claim 7 , further comprising uploading the difference to the cloud.

Assignees

• Leap Motion Inc

Inventors

• Cohen Isaac
• Sills Maxwell
• Durdik Paul Alan

Classifications

• G06F3/0304

  Detection arrangements using opto-electronic means (constructional details of pointing devices not related to the detection arrangement using opto-electronic means G06F3/033; optical digitisers G06F3/042) · CPC title

• G06F2203/04806

  Zoom, i.e. interaction techniques or interactors for controlling the zooming operation · CPC title

• G06F3/04815

  Interaction with a metaphor-based environment or interaction object displayed as three-dimensional [3D], e.g. changing the user viewpoint with respect to the environment or object · CPC title

• G06T15/20

  Perspective computation · CPC title

• G06F3/011

  Arrangements for interaction with the human body, e.g. for user immersion in virtual reality (blind teaching G09B21/00) · CPC title