2. The computer-implemented method of claim 1 , further comprising: determining a relative motion of the first portion of the object over a period of time between capture of the first image data and capture of the second image data.
2. The computer-implemented method of claim 1 , further comprising: determining a relative motion of the first portion of the object over a period of time between capture of the first image data and capture of the second image data. 3. The computer-implemented method of claim 2 , further comprising: determining the relative motion of the first portion of the object by analyzing at least one of a separation, a shape, or a size of the first portion of the object relative to one or more features represented in the second image data.