Three-dimensional perceptions in haptic systems
An acoustic field may be produced from a transducer array having known relative positions and orientations In this acoustic field, one or more control points may be defined. An amplitude may be assigned to the control point. Mid-air haptic effect for a virtual object on a human body part may be generated by moving the control point in a single closed curve comprising a plurality of curve segments. The single closed curve traverses at least one location where the human body part intersects with the virtual object. Additionally, a user may interact with virtual three-dimensional content using the user's hands while a tracking system monitoring the user's hands, a physics engine updates the properties of the virtual three-dimensional content and a haptic feedback system provides haptic information to the user.
1. An method comprising:
producing an acoustic field from a transducer array having known relative positions and orientations;
defining a control point wherein the control point has a known spatial relationship relative to the transducer array;
assigning a plurality of amplitudes to the control point over a preset time period, wherein the plurality of amplitudes is based on a sound profile and wherein assigning a plurality of amplitudes to the control point over a preset time period results in mid-air haptic effects;
extracting a feature set from the sound profile before processing the sound into a mid-air haptic effect; and
searching a library of haptic effects based on the extracted feature set alongside similarity metrics in order to provide feedback to a haptic author.
2. The method as in claim 1 , further comprising: (1) extracting a feature set from the sound profile before assigning the plurality of amplitudes to the control point over a preset time period; and (2) applying the feature set to the plurality of amplitudes assigned to the control point over a preset time period.
3. The method as in claim 1 , further comprising: (1) extracting a feature set from the plurality of amplitudes to the control point over a preset time period; and (2) applying the feature set to the sound profile.
4. The method as in claim 1 , further comprising:
the haptic author using a sound interface to describe basic components of the mid-air haptic effect.
5. The method as in claim 4 , further comprising:
further editing the sound interface.
6. The method as in claim 5 , wherein further editing the sound interface is mixed back into the sound profile.
7. The method as in claim 6 , wherein the further editing results in a combination of audio and haptic effects.
8. The method as in claim 6 , wherein the further editing occurs automatically.
9. The method as in claim 6 , wherein the further editing occurs via a range of processing styles.
10. The method as in claim 9 , wherein the processing styles are remixed to create new processing schemes.
11. The method as in claim 10 , wherein the new processing schemes are used to adjust the library of haptic effects.
12. The method as in claim 10 , wherein the new processing schemes are used to adjust audio inputs to be synthesized into the library of haptic effects.
13. The method as in claim 10 , wherein the new processing schemes are used to search the library of haptic effects.