Moving 'for rent' sign uses camera, motorized mount to track pedestrians (video)

Even in prime locations, vacant stores can go tenantless for months or years, costing landlords quite a bit in uncollected rent. One real estate owner in Sherbrooke, Quebec is hoping to move a property a bit more quickly, though, using a creative hack to attract attention to an otherwise ordinary "for rent" ( louer, in this case) sign. A standard red placard is mounted to a motorized horizontal track, with a camera keeping tabs on passersby. As pedestrians walk down the sidewalk, the sign slides...