In this issue, we have ten regular papers:

The first paper is titled “Two-dimensional line segment–triangle intersection test: revision and enhancement” by Simo Jokanovic from University of Banja Luka, Republic of Bosnia and Herzegovina.

The second paper is “Multi-label image classification with recurrently learning semantic dependencies” by Long Chen, Ronggui Wang, Juan Yang, Lixia Xue and Min Hu from Hefei University of Technology, China.

The third paper is “A local image descriptor based on radial and angular gradient intensity histogram for blurred image matching” by Bahman Sadeghi, Kamal Jamshidi, Abbas Vafaei and S. Amirhassan Monadjemi from University of Isfahan, Iran.

The fourth paper is “Fingerprint liveness detection using local quality features” by Ram Prakash Sharma and Somnath Dey from Indian Institute of Technology, Indore, India.

The fifth paper is “Human motions and emotions recognition inspired by LMA qualities” by Insaf Ajili, Malik Mallem and Jean-Yves Didier from IBISC, Univ Evry, Universit´e Paris-Saclay, France.

The sixth paper is “Disparity estimation in stereo video sequence with adaptive spatiotemporally consistent constraints” by Liang Tian, Jing Liu, Wei Guo from Hebei Normal University, China, and Haibin Ling from Temple University, USA.

The seventh paper is “Revisiting correlation-based filters for low-resolution and long-term visual tracking” by Ehsan Fazl-Ersi and Masoud Kazemi Nooghabi from Ferdowsi University of Mashhad, Iran.

The eighth paper is “Mandible and skull segmentation in cone beam computed tomography using super-voxels and graph clustering” by Oscar Cuadros Linares, Joao Batista Neto from University of Sao Paulo, Brazil, Jonas Bianchi, Dirceu Ravelli from Sao Paulo State University, Brazil, and Bernd Hamann from University of California, Davis, USA.

The ninth paper is “Construction of a flexible and scalable 4D light field camera array using Raspberry Pi clusters” by Jaepung An, Insung Ihm from Sogang University, South Korea, and Sanghun Park from Dongguk University, South Korea.

The tenth paper is “Augmenting photographs with textures using the Laplacian pyramid” by Lars Doyle and David Mould from Carleton University, Canada.