System for accurately repositioning imaging devices
AssigneeKen VanBree
InventorsKen VanBree, Leila Sink
Life of this patent
Estimating the term…
Abstract
The invention teaches a method of automatically creating a 3D model of a scene of interest from an acquired image, and the use of such a 3D model for enabling user to determine real world distances from a displayed image of the scene of interest.
Claims3
A method to automatically generate, from an acquired image, a set of points comprising a three dimensional representation of a scene of interest such that each point in said generated set of points corresponds to an actual point in said actual scene of interest, where said acquired image depicts an actual scene of interest and wherein said actual scene of interest contains at least one actual object of interest, said method comprising the steps of:
- a. applying actual calibration markings to actual object of interest oriented with said actual scene of interest, said actual calibration markings oriented so as to include at least one actual horizontal and at least one actual vertical line such that said actual vertical line and said actual horizontal line intersect to form an actual plane;
- b. acquiring image of said scene of interest, where said acquired image includes image of said actual object of interest and image of said actual applied calibration markings, comprising imaged vertical calibration markings and imaged horizontal calibration markings, inclusive;
- c. selecting from said image of said scene of interest said imaged calibration markings along at least one vertical line;
- d. determining coordinates of said imaged vertical calibration markings along at least one vertical line;
- e. determining the best fit line passing through said imaged vertical calibration markings along at least one said vertical line;
- f. determining, by means of said imaged vertical calibration markings, the scale of said image of said object of interest with respect to said actual object of interest;
- g. selecting from said image of said scene of interest said imaged calibration markings along at least one horizontal line;
- h. determining coordinates of said imaged horizontal calibration markings along at least one horizontal line;
- i. determining the best fit line passing through said imaged horizontal calibration markings along at least one said horizontal line;
- j. determining, by means of said imaged horizontal calibration markings, the scale of said image of said object of interest with respect to said actual object of interest;
- k. determining, by means of data obtained from steps c through j, said coordinates and said scaling of said imaged calibration markings along at least one said vertical line and said imaged horizontal calibration markings along at least one said horizontal line, corresponding actual coordinates of said actual plane in said actual scene of interest;
- l. repeating steps c through k for any additional actual planes represented in said acquired image corresponding to said one or more actual objects of interest in said actual scene of interest;
- m. outputting results from steps b through l where said output results provide a generated set of points comprising a three dimensional representation of said scene of interest such that each point in said generated set of points corresponds to an actual point in said actual scene of interest, whereas such said output results enable, with respect to any user selected points within said acquired image of said scene of interest, the calculation and display of the actual distance between the actual points corresponding to said selected points within said acquired image.
A method for determining actual measurement of an actual plane interest from an acquired image of a scene of interest, said acquired image of said scene of interest including an image of said plane of interest, said acquired image displayed to user on a display means, said display means equipped with a user interface, said method comprising the steps of:
- selecting four points in said acquired image of said scene of interest, said four points forming a quadrilateral in the image of the scene of interest, and also corresponding to a rectangle in said actual scene of interest;
- determining the distance between points of at least two adjacent sides of said formed quadrilateral in said plane of interest, where said determination is by means of using a generated set of points comprising a three dimensional representation of said scene of interest such that each point in said generated set of points corresponds to an actual point in said actual scene of interest;
- selecting any two points on said acquired image and on said image of said plane of interest;
- and
- displaying the actual distance between said selected two points on said acquired image by means of scaling the geometry relative to said formed quadrilateral, thereby providing user a display of an accurate real world measurement of a scene of interest by means of interface with the display of an acquired image of said scene of interest.
Dependencies are inferred from the claim text.