Method and systems for touch input

1. A method comprising:

obtaining touch data from a touch-sensing surface, the touch data being stored in a matrix;

selecting a number of gesture components to be generated;

generating a set of gesture components based on the touch data and the number of gesture components by performing a sparse matrix decomposition of said matrix;

obtaining a first touch input from the touch-sensing surface;

determining a projection of the first touch input on said set of gesture components; and

determining a plurality of control inputs of a computing system based on said projection.

2. The method of claim 1 , wherein the number of gesture components to be generated is based on a number of control inputs of the computing system.

3. The method of claim 1 , wherein the gesture components are non-orthogonal.

4. The method of claim 1 , wherein the number of gesture components is greater than a number of degrees of freedom capable of being detected by a touch-sensing system used to sense the touch data.

5. The method of claim 1 , wherein determining the plurality of control inputs includes obtaining a set of trained touch inputs, pairing each trained touch input with a sample control input of the computing system, and interpolating the set of trained touch inputs based on the first touch input.

6. The method of claim 5 , wherein interpolating the set of trained touch inputs includes determining a linear mapping function of the trained touch inputs.

7. The method of claim 1 , wherein the first touch input includes at least one of an absolute motion, a relative motion, an absolute position, a relative position, an absolute proximity, a relative proximity, a change in proximity, an absolute size, a relative size, or a change in size.

8. The method of claim 1 further comprising:

storing ( 304 ) the set of gesture components in a non-transitory computer-readable medium; and

storing said projection in a non-transitory computer-readable medium.

9. The method of claim 1 , further comprising:

obtaining a second touch input; and

interpolating the set of first touch inputs based on the second touch input to determine a runtime control input of the computing system.

10. A system comprising a memory storing instructions configured to cause a processor to:

obtain touch data from a touch-sensing surface, the touch data being stored in a matrix;

select a number of gesture components to be generated;

generate a set of gesture components based on the touch data and the number of gesture components by performing a sparse matrix decomposition of said matrix;

obtain a first touch input from the touch-sensing surface;

determine a projection of the first touch input on said set of gesture components; and

determine a plurality of control inputs of a computing system based on said projection.

11. The system of claim 10 , wherein the number of gesture components to be generated is based on a number of control inputs of the computing system.

12. The system of claim 10 wherein the processor is further configured to:

store the set of gesture components in a non-transitory computer-readable medium; and

store said projection in a non-transitory computer-readable medium.

13. The system of claim 10 wherein the processor is further configured to:

obtain a second touch input; and

interpolate the set of first touch inputs based on the second touch input to determine a runtime control input of the computing system.

14. A non-transitory computer-readable medium storing computer-executable instructions executable to perform a method comprising:

obtaining touch data from a touch-sensing surface, the touch data being stored in a matrix;

selecting a number of gesture components to be generated;

generating a set of gesture components based on the touch data and the number of gesture components by performing a sparse matrix decomposition of said matrix;

obtaining a first touch input from the touch-sensing surface;

determining a projection of the first touch input on said set of gesture components; and

determining a plurality of control inputs of a computing system based on said projection.