Systems and methods for generating dimensionally coherent training data

A method for generating training data for feature matching among images of a building structure, the method comprising:

• obtaining a geometric model of a building that includes a camera solution and a plurality of images used to generate the geometric model;
• for each facade of a plurality of façades of the geometric model, generating a respective façade slice;
• identifying a respective camera within the camera solution that observes each façade slice;
• for each identified camera, identifying pixels comprising visual data associated with a respective façade slice according to a visibility mask for the respective façade slice within the respective identified camera's associated image;
• generating an aggregate façade view of cumulative visual data for the respective façade slice from each identified camera, wherein the aggregate façade view comprises visual pixels from at least one identified camera;
• photo-texturing one of the respective façade slice or geometric model with the aggregate façade view to generate a visual 3-D representation of the building;
• and
• generating a training dataset by capturing images of the visual 3-D representation from a plurality of perturbed positions.

A computer system for generating training data for a building structure, comprising:

• one or more processors, including a general purpose processor and a graphics processing unit (GPU);
• a display;
• and
• memory;
• wherein the memory stores one or more programs configured for execution by the one or more processors, and the one or more programs comprising instructions for;
• obtaining a geometric model of a building that includes a camera solution and a plurality of images used to generate the geometric model;
• for a plurality of facades of the geometric model:
• applying a minimum bounding box to a respective façade to obtain a respective facade slice that is a 2-D plane represented in a 3-D coordinate system of the geometric model;
• and
• projecting visual data of at least one camera in the camera solution that viewed the respective façade onto a visibility mask associated with the respective facade slice;
• photo-texturing the projected visual data to one of the respective facade slice or the geometric model to generate a visual 3-D representation of the building;
• and
• generating a training dataset by perturbing the visual 3-D representation.

A non-transitory computer readable storage medium storing one or more programs configured for execution by a computer system having a display, one or more processors including a general purpose processor and a graphical processing unit (GPU), the one or more programs comprising instructions for:

• obtaining a geometric model of a building that includes a camera solution and a plurality of images used to generate the geometric model;
• for a plurality of facades of the geometric model:
• applying a minimum bounding box to a respective façade to obtain a respective façade slice that is a 2-D plane represented in a 3-D coordinate system of the geometric model;
• and
• projecting visual data of at least one camera in the camera solution that viewed the respective facade onto a visibility mask associated with the respective facade slice;
• photo-texturing the projected visual data to one of the respective facade slice or the geometric model to generate a visual 3-D representation of the building;
• and
• generating a training dataset by perturbing the visual 3-D representation.