Determining proximity of a mobile device to a subject based on shadow analysis

摘要

The present disclosure relates generally to cell phones and cameras, and to shadow analysis in imagery captured by such cell phones and cameras. One claim recites a method comprising: identifying a shadow cast by a cell phone on a subject being imaged by a camera included in the cell phone; and using a programmed electronic processor, determining proximity to the subject based on an analysis of the shadow. Another claim recites a mobile phone comprising: a camera for capturing images and video; memory; and one or more processors programmed for: identifying a shadow cast by a cell phone on a subject being imaged by said imager; and determining proximity to the subject based on an analysis of the shadow. Of course, other claims and combinations are provided too.

主权项

1. A method comprising:
identifying a shadow cast by a cell phone on a subject being imaged by a camera included in the cell phone; and using one or more programmed electronic processors, determining proximity to the subject based on an analysis of the shadow.