Foreword to the special section on 3D object retrieval 2019.

We are pleased to present this special section of Computers & Graphics (C&G), featuring the selected peer reviewed extended versions of the full papers presented at the 12th Eurographics Workshop on 3D Object Retrieval - 3DOR 2019 (http://3dor2019.ge.imati.cnr.it/) which was held on May 5-6, 2019 in Genova, Italy. All papers were evaluated in a blind process by at least three reviewers from our international program committee, consisting of 32 experts in the area. In the paper "ConvPoint: Continuous Convolutions for Point Cloud Processing" [3], Alexandre Boulch investigates the use of a generalization of discrete convolutional neural networks (CNNs) for processing unstructured point clouds. [Extracted from the article]