Patent attributes
A head-mounted display includes a visible-light camera configured to collect a visible-light image of a physical space, a surface sensor configured to measure one or more surface parameters of the physical space, a see-through display configured to visually present an augmentation image while light from the physical space passes through the see-through display to a user eye, and an augmented-reality engine. The augmented-reality engine may be configured to identify a surface of the physical space from the one or more measured surface parameters, compose a mixed-reality image that includes the augmentation image overlaid on the visible-light image, and visually present, via the see-through display, the mixed-reality image in alignment with the identified surface.