Method and System for Modeling Subjects from a Depth Map
AssigneeIntel Corporation
InventorsGershom Kutliroff, Amit Bleiweiss, Itamar Glazer, Maoz Madmoni
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Abstract
A method for modeling and tracking a subject using image depth data includes locating the subject's trunk in the image depth data and creating a three-dimensional (3D) model of the subject's trunk. Further, the method includes locating the subject's head in the image depth data and creating a 3D model of the subject's head. The 3D models of the subject's head and trunk can be exploited by removing pixels from the image depth data corresponding to the trunk and the head of the subject, and the remaining image depth data can then be used to locate and track an extremity of the subject.
Claims21
A method performed by a processor comprising:
- receiving, at the processor, image depth data, wherein the image depth data includes depth data of a subject to be modeled;
- locating a trunk of the subject from the image depth data and creating a three-dimensional (3D) model of the trunk of the subject;
- locating a head of the subject from the image depth data and creating a 3D model of the head of the subject;
- using the 3D models of the trunk and the head of the subject to remove a subset of data from the image depth data corresponding to the trunk and the head of the subject;
- and
- using remaining image depth data to locate an extremity of the subject.
A system comprising:
- an image sensor for acquiring image depth data;
- a background engine configured to create a model of an image background from the image depth data;
- a subject manager configured to determine a subset of the image depth data that corresponds to a subject;
- and
- a subject tracking engine communicatively coupled to the image sensor, the background engine, and the subject manager, wherein the subject tracking engine is configured to:
- create a three-dimensional (3D) model of a torso and a head of a subject based on the model of the image background and the subset of the image depth data;
- and
- locate an extremity of the subject by using at least the 3D model of the torso and the head of the subject and the subset of the image depth data.
A system for modeling a subject comprising:
- means for acquiring image depth data;
- means for creating a model of an image background from the image depth data;
- and
- means for creating a 3D model of a torso and a head of the subject based on the model of the image background, and locating an extremity of the subject from the image depth data by using the 3D model of the torso and the head of the subject.
Dependencies are inferred from the claim text.