US Patent 10265911 Image-based monitoring and feedback system for three-dimensional printing

The present disclosure describes apparatuses and techniques for using an image-based monitoring and feedback system for three-dimensional printing. In some aspects, a camera captures images of objects being printed and an image-processing system compares the images with benchmark images to detect and correct differences between the object and the benchmark. The correction can be in real time or applied to subsequent printing. Other aspects include a calibration system that prints predefined test objects and compares them to benchmarks to ensure that the printer operating parameters are properly set. The comparison can be manually performed by a user or automated as a part of the image-processing system.