Estimation of object properties in 3D world

A system, comprising:

• a processor;
• a computer readable memory in circuit communication with the processor;
• and
• a computer readable storage medium in circuit communication with the processor;
• wherein the processor executes program instructions stored on the computer-readable storage medium via the computer readable memory and thereby:
• replaces an image of an object observed within a two-dimensional image field of view of video data from a camera with a three-dimensional polygonal model that is selected from a plurality of object-type three-dimensional polygonal models that each have projected sizes and different bounding box aspect ratios, in response to the selected three-dimensional polygonal model having:
• a ratio of a projected size to a size of an image blob bounding box determined for the observed two-dimensional object image that meets a threshold value;
• and
• an aspect ratio that is more similar to an aspect ratio of the image blob bounding box determined for the observed two-dimensional object image, relative to aspect ratios of bounding boxes of respective ones of others of the plurality of object-type three-dimensional polygonal models.

A computer program product for modeling objects within two-dimensional video data by three-dimensional models, the computer program product comprising:

• a computer readable hardware storage device having computer readable program code embodied therewith, the computer readable program code comprising instructions for execution by a processor that cause the processor to:
• replace an image of an object observed within a two-dimensional image field of view of video data from a camera with a three-dimensional polygonal model that is selected from a plurality of object-type three-dimensional polygonal models that each have projected sizes and different bounding box aspect ratios, in response to the selected three-dimensional polygonal model having:
• a ratio of a projected size to a size of an image blob bounding box determined for the observed two-dimensional object image that meets a threshold value;
• and
• an aspect ratio that is more similar to an aspect ratio of the image blob bounding box determined for the observed two-dimensional object image, relative to aspect ratios of bounding boxes of respective ones of others of the plurality of object-type three-dimensional polygonal models.