Complex sentence: This modification enables Hough Transform for not only used to detect an object described with analytic equation (e.g. line, circle, etc), but also can be used to detect an arbitrary object described with its model.
Split into simpler sentences: This modification enables the Hough Transform to be used for not only the detection of an object described with an analytic equation (e.g. line, circle, etc). Instead, it can also be used to detect an arbitrary object described with its model.