Estimating dimensions of geo-referenced ground level imagery using orthogonal imagery
View Patent ↗A system and method is provided for measurements of building façade elements by combining ground-level ( 201 ) and orthogonal imagery ( 906 ). The measurements of the dimension of building façade elements are based on ground-level imagery that is scaled and geo-referenced using orthogonal imagery ( 209 ). The method continues by creating a tabular dataset ( 1002 ) of measurements for one or more architectural elements such as siding (e.g., aluminum, vinyl, wood, brick and/or paint), windows or doors. The tabular dataset can be part of an estimate report ( 1002 ).
1. A method of measuring in a three-dimensional building model, comprising:
collecting, using a smartphone, a plurality of ground-level images capturing all sides of a single building;
determining a location for the plurality of ground-level images;
generating an outline of a plurality of façades associated with all sides of the single building shown within the ground-level images to assist in generation of a three-dimensional building model of the single building;
generating the three-dimensional building model based on the outlined plurality of façades associated with all sides of the single building, wherein the generating the three-dimensional building model includes at least correlation and rectification of the outlined plurality of façades and representing points of the single building projected in three-dimensional space;
retrieving a geo-referenced top-view orthogonal image of the single building based on the determined location of at least one of the plurality of ground-level images;
deriving a scale as between all points of the three-dimensional building model by geo-referencing all points of the three-dimensional building model using the geo-referenced top-view orthogonal image by correlating the geo-referenced top-view orthogonal image to include matching at least two points of the three-dimensional building model to corresponding roof pixels in the geo-referenced top-view orthogonal image and identifying those matches as being part of a same feature within the three-dimensional building model of the single building;
measuring, on the scaled three-dimensional building model, between at least one starting geo-referenced point and at least one ending geo-referenced point to determine dimensions of one or more architectural elements, the dimensions including at least width and height of the one or more architectural elements, located within at least a first façade of the geo-referenced three-dimensional building model; and
labeling the architectural element within the scaled three-dimensional building model, the labeling representing the determined dimensions.
2. The method of claim 1 , wherein the one or more architectural elements comprise windows.
3. The method of claim 1 , wherein the one or more architectural elements comprise doors.
4. The method of claim 1 , further comprising creating a tabular dataset of measurements for one or more architectural elements and their respective determined measurements.
5. The method of claim 4 , wherein the tabular dataset comprises one or more of default ones of the architectural elements or selectable ones of the architectural elements.
6. The method of claim 4 , wherein the tabular dataset comprises one or more portions of an estimate report.
7. The method of claim 6 , wherein the one or more portions of an estimate report are modified using product data.
8. The method of claim 4 , wherein the tabular dataset comprises measurements for siding.
9. The method of claim 4 , wherein the tabular dataset comprises measurements for paint.
10. The method of claim 1 , wherein the measuring is conducted interactively by repeated selecting of at least one starting geo-referenced point and at least one ending geo-referenced point.
11. A method of measuring in a three-dimensional building model, comprising:
collecting, using a smartphone, a plurality of ground-level images capturing all sides of a single building;
determining a location for the plurality of ground-level images;
generating an outline of a plurality of façades shown within the ground-level images of all sides of the single building to assist in generation of a three-dimensional building model of the single building;
generating the three-dimensional building model based on the outlined plurality of façades, wherein the generating the three-dimensional building model includes at least correlation and rectification of the outlined plurality of façades and representing points of the single building projected in three-dimensional space;
retrieving a geo-referenced top-view orthogonal image of the single building based on the determined location of at least one of the plurality of ground-level images;
deriving a scale as between all points of the three-dimensional building model by geo-referencing all points within the three-dimensional building model by matching at least two points of the three-dimensional building model associated with at least one outlined façade to corresponding roof pixels in the geo-referenced top-view orthogonal image;
measuring, on the scaled three-dimensional building model, between at least one starting geo-referenced point and at least one ending geo-referenced point to determine dimensions of one or more architectural elements located within the plurality of façades; and
labeling the one or more architectural element with the determined dimensions.