  We introduce the first comprehensive 3D dataset for the task of unsupervised
anomaly detection and localization. It is inspired by real-world visual
inspection scenarios in which a model has to detect various types of defects on
manufactured products, even if it is trained only on anomaly-free data. There
are defects that manifest themselves as anomalies in the geometric structure of
an object. These cause significant deviations in a 3D representation of the
data. We employed a high-resolution industrial 3D sensor to acquire depth scans
of 10 different object categories. For all object categories, we present a
training and validation set, each of which solely consists of scans of
anomaly-free samples. The corresponding test sets contain samples showing
various defects such as scratches, dents, holes, contaminations, or
deformations. Precise ground-truth annotations are provided for every anomalous
test sample. An initial benchmark of 3D anomaly detection methods on our
dataset indicates a considerable room for improvement.
