32. The method of claim 31 , wherein iteratively extracting the video features from the received video involves: partitioning the image within the video into the tiles of different sizes; and extracting the image features from the tiles.
32. The method of claim 31 , wherein iteratively extracting the video features from the received video involves: partitioning the image within the video into the tiles of different sizes; and extracting the image features from the tiles. 33. The method of claim 32 , wherein for each given tile size in the different sizes, partitioning the image within the video into the tiles involves partitioning the image within the video into the tiles of the given tile size.