US Patent 10467758 Imagery-based construction progress tracking

A method is provided. The method includes one or more of receiving, by an image processing device, one or more images from an image capture device. The one or more images are each associated with metadata that includes a common direction. For each of the one or more images, the method further includes adding one or more pairs of parallel lines, converting each of the one or more pairs of parallel lines into intersection coordinates with 2D drawing elements, and calculating construction progress from the intersection coordinates. The 2D drawing includes a 2D floor plan or a 2D elevation plan, and each pair of parallel lines designates one of the start or end of construction during a current period of time.