Abstract: A method and system for compensating for a moving object placed between a projector and a projection scene is shown. The method/system dividing a movement pattern of the moving object into N discrete position states, and for each of said N position states determining a corresponding view projection matrix. While projecting an image within any of the N position states, multiplying a desired projection image by the corresponding view projection matrix.

Abstract: A method and system for compensating for a moving object placed between a projector and a projection scene is shown. The method/system dividing a movement pattern of the moving object into N discrete position states, and for each of said N position states determining a corresponding view projection matrix. While projecting an image within any of the N position states, multiplying a desired projection image by the corresponding view projection matrix.

Abstract: A wheelchair comprising a modular and adjustable configuration. The wheelchair comprises a mainframe, a seat assembly, and a caster wing assembly. According to an embodiment, the seat assembly includes adjustable side guards and/or a backrest. According to an embodiment, the wheelchair includes a suspension system coupled between the mainframe and the seat assembly. According to an embodiment, the caster wing assembly includes an adjustment mechanism for adjusting the horizontal and/or vertical position of the footrest with respect to the mainframe. According to another embodiment, the caster wing assembly includes a leg or calf rest member having a comfort shaped profile. According to another embodiment, the seat assembly comprises a structurally independent component. According to another embodiment, the caster wing assembly comprises a structurally independent component. According to another embodiment, the mainframe comprises a structurally independent component.

Abstract: A method and system for compensating for a moving object placed between a projector and a projection scene is shown. The method/system dividing a movement pattern of the moving object into N discrete position states, and for each of said N position states determining a corresponding view projection matrix. While projecting an image within any of the N position states, multiplying a desired projection image by the corresponding view projection matrix.

Abstract: A digital marketing system displays advertisements in a retail environment, in transportation vehicles, and in outdoor advertising environments. The digital marketing system includes and advertisement database, a control database, a communications network, and a plurality of digital marketing devices. The advertisement database stores a plurality of digital advertisement files for a plurality of digital marketing devices. The control database stores information about the plurality of digital marketing devices, the information including location information and log entry information. A first digital marketing device is coupled to the advertisement database and the control database via a communications network, and stores a selected set of digital advertisement files. The first digital marketing device displays the selected set of digital advertisement files according to an advertising schedule.