Abstract: Provided herewith a computer-based method for assessing a location of an object-of-interest (OBIN) in a building site. The method may comprise: acquiring an image of an OBIN captured by an image capturing device (ICD) within the building site; acquiring a position and orientation of the ICD at the time the image was captured; processing the image to identify an observed reference point of the OBIN on the image; and determining spatial coordinates for the observed reference point with respect to the model. Alternatively, the method may comprise: acquiring an image of a building site captured by an ICD; acquiring a position and orientation of the ICD at the time the image was captured; determining an expected position on the image for an object based on a model of the building site; determining an image-based-position of the object; and detecting a discrepancy between the expected position and the image-based position.

Abstract: A method of generating an interactive graphical user interface (GUI), comprising: receiving one or more images captured by an image sensor of a mobile device in a construction site, each image is associated with one or more positioning parameter indicative of the mobile device’s position when the respective image is captured, rendering the image(s) on a display, receiving user input indicating selection of an area in the image(s) depicting a corresponding area in the construction site, accessing a 3D model documenting construction task status relating to each of a plurality of elements in the construction site, registering the image(s) to the 3D model according to the positioning parameter(s) to identify, in the selected area, elements documented in the 3D model, retrieving a respective construction task status relating to the identified elements; and adapting a GUI presented in association with the selected area according to the respective construction task status.

Abstract: A method for generating a flow model that represents a building plan for constructing a building site, the method comprising: acquire assignment parameters for each of a plurality of objects represented in a building information model (BIM) of the building site; for each of the plurality of objects, assigning the object to one or more of a plurality of construction action elements (CAEs) that represents a construction task based on the assignment parameters of the object; and arranging the plurality of CAEs in an ordered sequence to a generate the flow model. A method for discerning progress of a building project for a building site, based on at least one image captured at the building site associated with the flow model.

Abstract: A method for determining a position of an image capture device (ICD) within a building site, the module comprising: registering an image captured in the building site by the ICD; registering an initial ICD position of the ICD at the time the image was captured; generating a plurality of proposed ICD positions based on the initial ICD position; and selecting an optimized ICD position from the plurality of proposed ICD positions. Optionally, the optimized ICD position is selected responsive to a model of the building site that comprises sufficient information to generate a three dimensional (3D) representation of the building site.