The dataset consists of six .mat files containing three surveillance video test sequences, Hall_qcif_330 (Hall, 330 frames), PETS2009_S1L1-View_001 (PETS, 100 frames), and Crosswalk (CW, 270 frames), and the corresponding background image for three videos (Only the data of each video's gray channel component). Hall is shot indoors and disturbed by noise, PETS is shot outdoors with less noise, and CW is shot outdoors with heavy noise interference. Hall and PETS are two foreground-sparse videos with small objects. CW is a foreground-dense video with dramatic changes in sparsity. All the video