3D Reconstruction of Deformable Objects from RGB-D Cameras: An Omnidirectional Inward-facing Multi-camera System Topics: Assistive Computer Vision; Camera Networks and Vision; Device Calibration, Characterization and Modeling; Image Formation, Acquisition Devices and Sensors; Image-Based Modeling and 3D Reconstruction; Shape Representation and Matching; Vision for Robotics In Proceedings of the 16th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications - Volume 4 VISAPP: VISAPP, 544-551, 2021