I. Introduction
Physical try-on of clothes is a time consuming procedure in retail shopping. It takes try-on of several clothes before the shopper can make decision on design, color and size of the apparel that satisfies her. Virtual try-on can help to speed-up the process as the shopper can see the clothes on her body without actually wearing them, or narrow down her selections before physical try-on. Furthermore, it can enhance the user's shopping experience through new features, such as side-by-side comparison of various clothes and simultaneous viewing of outfits from different angles. Interactive virtual try-on can also be an interesting feature of digital signage for advertisement and/or attracting crowds.