System and method for detecting and tracking multiple parts of an object

摘要

A system and method of detecting a posture of at least one predetermined part of an object comprising the steps of extracting a first object shape from a first image taken by a first image sensor, computing a characteristic dimension value of the predetermined part within a predetermined region of the first object shape, constructing a mask based on the characteristic dimension value, extracting a profile of the predetermined part from the first object shape by applying the mask on the first object shape, and identifying at least one predefined feature point in the profile of the predetermined part, thereby detecting the posture of the predetermined part is disclosed.

主权项

1. A method of detecting a posture of at least one predetermined part of an object, comprising:
extracting a first object shape from a first image taken by a first image sensor; computing a characteristic dimension value of said predetermined part within a predetermined region of said first object shape by:
determining a plurality of segmentation boundaries based on a first set of thresholds;extracting said predetermined region from said first object shape based on said segmentation boundaries;identifying said at least one predetermined part within said predetermined region based on a second set of thresholds;measuring dimensional values of said at least one predetermined parts within said predetermined region; andcalculating said characteristic dimension value based on said dimensional values of said predetermined parts within said predetermined region; constructing a mask based on said characteristic dimension value; extracting a profile of said predetermined part from said first object shape by applying said mask on said first object shape; and identifying at least one predefined feature point in said profile of said predetermined part; thereby detecting said posture of said predetermined part.