Trung HD. Estimation of Crowd Density Using Image Processing Techniques with Background Pixel Model and Visual Geometry Group. Buletin Ilmiah Sarjana Teknik Elektro [Internet]. 2024Jun.20 [cited 2024Jul.3];6(2):142-54. Available from: https://journal2.uad.ac.id/index.php/biste/article/view/10785