Tracking position of at least one object in video frames. The tracking includes processing an initial frame of a set of frames, the processing the initial frame using feature extraction to identify locations of features of the at least one object. The tracking further includes using motion estimation to track locations of the features in subsequent frames of the set of frames, including iteratively performing: obtaining a next frame of the set of frames, and applying a motion estimation algorithm as between the next frame and a prior frame of the set of frames to identify updated locations of the features in the next frame, where locations of the features as identified based on the prior frame are used as input to the motion estimation algorithm to identify the updated locations of the features in the next frame based on searching less than an entirety of the next frame.