System, method, and medium for image object and contour feature extraction

摘要

A method includes determining a position and length of a non-zero run in a row of a pixel map. The method also includes determining a number of neighbors for the non-zero run in a preceding row, based at least in part on the position and the length. In addition, the method includes updating a correspondence map of the non-zero run and a correspondence map of a first neighbor of the non-zero run, based at least in part on a correspondence map of a second neighbor of the non-zero run, in response to a determination that the non-zero run has at least two neighbors in the preceding row.

主权项

1. A method implemented with a processor, the method comprising:
determining a position and length of a non-zero run in a row of a pixel map; determining, with the processor, a minimum label of roots of at least two neighbors in a preceding row of the pixel map, in response to a determination, based at least in part on the position and the length, that the non-zero run neighbors the at least two neighbors; and updating a correspondence map of the non-zero run and a correspondence map of a first neighbor of the at least two neighbors, based at least in part on a correspondence map of a second neighbor of the at least two neighbors, in response to the determination that the non-zero run neighbors the at least two neighbors.