IMAGE BASED MEASUREMENT SYSTEM

摘要

A Quantified Image Measurement System that creates accurate physical measurement data from digital pictures is disclosed. The system can use any image format and enhances the image file with measurement data and data transformation information that enables the creation of any type of geometrical or dimensional measurement from the stored photograph. This file containing the original digital image along with the supplemental data is referred to as a Quantified Image File or QIF. The QIF can be shared with other systems via email, cloud syncing or other types of sharing technology. Once shared, existing systems such as CAD applications or web/cloud servers can use the QIF and the associated QIF processing software routines to extract physical measurement data and use the data for subsequent processing or building geometrically accurate models of the objects or scene in the image. Additionally smart phones and other portable devices can use the QIF to make measurements on the spot or share between portable devices. In addition, the quantified image measurement system of this invention eliminates the need for capturing the image from any particular viewpoint by using multiple reference points and software algorithms to correct for any off-angle distortions.

主权项

1. A system and apparatus for making accurate dimensional or geometrical measurements of the features in a predominantly 2D scene from an image of the scene taken from even a non-orthogonal perspective comprising
a. a digital scanner that creates digital image data; b. a reference object containing at least four co-planar reference fiducials physically placed proximate to the predominantly 2D surface containing the features to be measured. c. a data processing system that:
i. contains information regarding the geometry of the reference template or reference object;ii. determines the locations of the coplanar reference fiducials within the digital image;iii. From the locations of the fiducials, determines the non-orthogonal distortion(s) of the objects features caused by the non-orthogonal viewpoint of the camera relative to the predominantly 2D surface;iv. determine corrections for the distortions;v. apply the corrections to compute accurate dimensions or geometry of features in the scene d. A user interface to allow user input and to output the accurate dimensions or geometry of the objects predominantly 2D surface. e.