Detecting and tracking objects in images
View Patent ↗According to one disclosed method, coordinates in a multi-dimensional space are determined for an image point characterizing a particular object. An equation describing a model in the space is provided. The model is characteristic of a set of training images of one or more other objects. The coordinates are applied to the equation to determine a distance between the image point and the model. Based on the determined distance, a determination is made as to whether the particular object matches the one or more other objects. A set of training images may be received. A multi-dimensional space (e.g., eigenspace) may be determined based on the set of training images. A set of training points may be generated by projecting the set of training images into the multi-dimensional space. An equation describing a model in the multi-dimensional space that is characteristic of the set of training points may be determined.
1. A non-transitory computer-readable storage medium encoded with executable instructions that, when executed by a processor, cause the processor to perform operations comprising:
detecting, using electromagnetic radiation projected proximally to a surface, an object near the surface;
determining whether the detected object is of a predetermined object type using a trained recognition model, the recognition model being trained to determine whether the detected object is of the predetermined object type based on an appearance of the detected object; and
generating a user input to a computer application based on the detected object, if it is determined that the detected object is of the predetermined object type.
2. The computer-readable storage medium of claim 1 ,
wherein the electromagnetic radiation is projected onto a first side of the surface,
wherein the object is near a second side of the surface, and
wherein the first side is obverse to the second side.
3. A non-transitory computer-readable storage medium encoded with executable instructions that, when executed by a processor, cause the processor to perform operations comprising:
detecting, using electromagnetic radiation projected proximally to a surface, an object near the surface;
processing data elements of the object into a multi-dimensional space having a dimensionality that is lower than a number of data points to produce coordinates for an image point; and
generating a user input to a computer application based on the coordinates of the detected object.
4. The non-transitory computer-readable storage medium of claim 3 , wherein processing data elements of the object into a multi-dimensional space having a dimensionality that is lower than a number of data points to produce coordinates for an image point comprises projecting data elements of the object into a multi-dimensional space having a dimensionality that is lower than a number of data points to produce coordinates for an image point.
5. The non-transitory computer-readable storage medium of claim 3 ,
wherein the electromagnetic radiation is projected onto a first side of the surface,
wherein the object is near a second side of the surface, and wherein the first side is obverse to the second side.
6. The non-transitory computer-readable storage medium of claim 3 , wherein detecting an object near the surface comprises detecting an object touching the surface.
7. A method comprising:
detecting, using electromagnetic radiation projected proximally to a surface, an object near the surface;
determining whether the detected object is of a predetermined object type using a trained recognition model, the recognition model being trained to determine whether the detected object is of the predetermined object type based on an appearance of the detected object; and
generating, using a processing device, a user input to a computer application based on the detected object, if it is determined that the detected object is of the predetermined object type.
8. The method of claim 7 ,
wherein the electromagnetic radiation is projected onto a first side of the surface,
wherein the object is near a second side of the surface, and
wherein the first side is obverse to the second side.
9. A method comprising:
detecting, using electromagnetic radiation projected proximally to a surface, an object near the surface;
processing data elements of the object into a multi-dimensional space having a dimensionality that is lower than a number of data points to produce coordinates for an image point; and
generating, using a processing device, a user input to a computer application based on the coordinates of the detected object.
10. The method of claim 9 , wherein processing data elements of the object into a multi-dimensional space having a dimensionality that is lower than a number of data points to produce coordinates for an image point comprises projecting data elements of the object into a multi-dimensional space having a dimensionality that is lower than a number of data points to produce coordinates for an image point.
11. The method of claim 9 ,
wherein the electromagnetic radiation is projected onto a first side of the surface,
wherein the object is near a second side of the surface, and
wherein the first side is obverse to the second side.
12. The method of claim 9 , wherein detecting an object near the surface comprises detecting an object touching the surface.
13. A system comprising:
one or more processing devices; and
at least one non-transitory computer-readable storage medium encoded with executable instructions that, when executed, cause the one or more processing devices to perform operations comprising:
detecting, using electromagnetic radiation projected proximally to a surface, an object near the surface;
determining whether the detected object is of a predetermined object type using a trained recognition model, the recognition model being trained to determine whether the detected object is of the predetermined object type based on an appearance of the detected object; and
generating a user input to a computer application based on the detected object, if it is determined that the detected object is of the predetermined object type.
14. The system of claim 13 ,
wherein the electromagnetic radiation is projected onto a first side of the surface,
wherein the object is near a second side of the surface, and
wherein the first side is obverse to the second side.
15. A system comprising:
one or more processing devices; and
at least one non-transitory computer-readable storage medium encoded with executable instructions that, when executed, cause the one or more processing devices to perform operations comprising:
detecting, using electromagnetic radiation projected proximally to a surface, an object near the surface;
processing data elements of the object into a multi-dimensional space having a dimensionality that is lower than a number of data points to produce coordinates for an image point; and
generating a user input to a computer application based on the coordinates of the detected object.
16. The system of claim 15 , wherein processing data elements of the object into a multi-dimensional space having a dimensionality that is lower than a number of data points to produce coordinates for an image point comprises projecting data elements of the object into a multi-dimensional space having a dimensionality that is lower than a number of data points to produce coordinates for an image point.
17. The system of claim 15 ,
wherein the electromagnetic radiation is projected onto a first side of the surface,
wherein the object is near a second side of the surface, and
wherein the first side is obverse to the second side.
18. The system of claim 15 , wherein detecting an object near the surface comprises detecting an object touching the surface.
19. An apparatus, comprising:
means for detecting, using electromagnetic radiation projected proximally to a surface, an object near the surface;
means for determining whether the detected object is of a predetermined object type using a trained recognition model, the recognition model being trained to determine whether the detected object is of the predetermined object type based on an appearance of the detected object; and
means for generating a user input to a computer application based on the detected object, if it is determined that the detected object is of the predetermined object type.
20. The apparatus of claim 19 , wherein:
the electromagnetic radiation is projected onto a first side of the surface,
the object is near a second side of the surface, and
the first side is obverse to the second side.
21. An apparatus, comprising:
means for detecting, using electromagnetic radiation projected proximally to a surface, an object near the surface;
means for processing data elements of the object into a multi-dimensional space having a dimensionality that is lower than a number of data points to produce coordinates for an image point; and
means for generating a user input to a computer application based on the coordinates of the detected object.
22. The apparatus of claim 21 , wherein the means for processing data elements of the object into a multi-dimensional space having a dimensionality that is lower than a number of data points to produce coordinates for an image point comprises means for projecting data elements of the object into a multi-dimensional space having a dimensionality that is lower than a number of data points to produce coordinates for an image point.