1. A system for tagging an object in a video content including a plurality of frames, the system comprising: a memory storing an executable code; and a processor executing the executable code to: obtain a first frame of the video content including the object and a first region including at least part of the object based on a segmentation hierarchy of the first frame; insert a synthetic object into the first frame of the video content; merge an object segmentation hierarchy of the synthetic object with the segmentation hierarchy of the first frame to create a merged segmentation hierarchy; select a second region at least partially including the synthetic object based on the merged segmentation hierarchy; provide the first frame including the first region and the second region to a first crowd user for creating a first corrected frame; receive the first corrected frame from the first crowd user including a first corrected region including the object and a second corrected region including the synthetic object; determine a quality based on the synthetic object and the second corrected region; and accept the first corrected region based on the quality.