Image creation and assessment method and system
AssigneeVarafy Corporation
InventorsNathaniel ROSSOL, Osmar ZAIANE
Life of this patent
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Abstract
A software-based method and system enables the creation and automatic assessment of an image such as a free-body diagram by adding pre-made or user-created components to create the image. The input to the software may be a vectorized entity representation of constituent elements of a user's submitted image, including element properties. A pre-authored correct solution and a grading rubric may be used to compute a grade to be returned to the user as output. The assigned grade can be proportional to the severity of any errors in accordance with the grading rubric. The method and system may also generate feedback to the user indicating where and why grade points were lost.
Claims22
A method for assessing a proposed diagram (“Diagram A”) against a ground-truth diagram (“Diagram B”), said method comprising the steps of:
- (a) converting the Diagram A to a first entity list, and converting the Diagram B to a second entity list;
- (b) computing a cost matrix using the first entity list, the second list, and a costs list;
- and
- (c) computing an optimal matching score for the Diagram A relative to the Diagram B using the cost matrix.
A method for assessing a proposed diagram (“Diagram A”) against a ground-truth diagram (“Diagram B”), said method being embodied on a computer-readable medium such that, when implemented on a computer, the method can assess the Diagram A against the Diagram B, wherein the computer-readable medium comprises:
- (a) a code segment configured to convert the Diagram A to a first entity list, and to convert the Diagram B to a second entity list;
- (b) a code segment configured to compute a cost matrix using the first entity list, the second list, and a costs list;
- and
- (c) a code segment configured to compute an optimal matching score for the Diagram A relative to the Diagram B using the cost matrix.
Dependencies are inferred from the claim text.