Image based ground weight distribution determination
AssigneeMicrosoft Corporation
InventorsJonathan Hoof, Daniel Kennett
Life of this patent
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Abstract
A sequence of images is processed to interpret movements of a user. The user's contour and center of gravity are determined and tracked. Based on points of contact between the user and the environment, and upon tracked movement of the center of gravity, forces impressed by the user upon the points of contact with the environment may be deduced by constraint analysis. This center-of-mass model of user movements may be used in conjunction with a skeletal model of the user to provide verification of the validity of the skeletal model. The center-of-mass model may also be used alternatively with the skeletal model fails during those times when use of the skeletal model is problematic.
Claims20
A system comprising:
- a processor;
- and
- memory coupled to the processor, the memory comprising executable instructions that, when
- executed by the processor cause, the processor to effectuate operations comprising:
- determining a first contour of a targeted user from a first image;
- determining a first center of mass of the targeted user from the first contour;
- determining a first point of contact, at which the targeted user is in contact with a first fixture;
- and
- determining a first force by a constraint analysis comprising a geometrical relationship of the first center of mass to the first point of contact.
A method comprising:
- determining a first contour of a targeted user from a first image;
- determining a first center of mass of the targeted user from the first contour;
- determining a first point of contact, at which the targeted user is in contact with a first fixture;
- and
- determining a first force by a constraint analysis comprising a geometrical relationship of the first center of mass to the first point of contact.
A computer-readable storage medium comprising executable instructions that, when executed by a processor, cause the processor to effectuate operations comprising:
- determining a first contour of a targeted user from a first image;
- determining a first center of mass of the targeted user from the first contour;
- determining a first point of contact, at which the targeted user is in contact with a first fixture;
- and
- determining a first force by a constraint analysis comprising a geometrical relationship of the first center of mass to the first point of contact.
Dependencies are inferred from the claim text.