Patent ID: 11928849
Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 2:
3. The method of claim 1, wherein refining the object bounding contour of the frame comprises iteratively until a stopping criterion is achieved:
cropping the frame based on a presence of the object bounding contour in the frame;
computing a heatmap that highlights pixels in the cropped frame responsible for identification of the object of interest;
identifying pixels that exceed a heatmap threshold;
determining a new object bounding contour based on fitting a contour to the identified pixels, where the fitted contour encompasses the identified pixels;
computing a first metric based on a size difference between the object bounding contour and the new object bounding contour;
determining if the stopping criterion is achieved based on a result of computing a cost function based on the first metric;
and
selecting one of an associated object bounding contour or a new object bounding contour to be the refined object bounding contour for the frame in response to the stopping criterion being achieved based on the cost function.