Blender is a free and open-source 3D animation software, which can be used as a simulation tool in metrology, to build numerical models that can be used in the design and optimisation of camera-based measurement systems. In this work, the relevance of using Blender to model reality from an observer's point of view, according to the laws of optics, is explored. Two experiments were conducted in real-world and Blender modelling environments, one using individual cameras for a simple measurement task, the other considering multi-camera position optimisation. The objective was to verify whether the virtual cameras created in Blender can perceive and measure objects in the same manner as the real cameras in an equivalent environment. The results demonstrate that in its native modelling format Blender satisfies the optical metrology characteristics of measurement, but the correlation between Blender output and real-world results is highly sensitive to initial modelling parameters such as light intensity, camera definitions and object surface texture.
Blender is a free and open-source 3D animation software, that has the potential to be used as a metrology simulation tool, to build digital models that can be used in the design and optimisation of camerabased measurement systems. In this work the feasibility of using of Blender for measurement system simulation is explored. Using Blender, a simple camera-based measurement task was simulated, in which a camera is used to measure the observable diameter of a white sphere. The aim was to check if the virtual cameras created in Blender can perceive and measure the sphere in the same manner as real cameras when repeating the procedure in a closely matching real-world experimentation.
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