Masked Face Detection using Artificial Intelligent Techniques -- Object Motion Detection in Video by Fusion of RPCA and NMF Decompositions -- Hierarchical Decomposition of Third-order Tensor trough Adaptive Branched Inverse Difference Pyramid Based on 3D-WHT -- Multimodal Technique for Human Authentication using Fusion of Palm and Dorsal Hand Veins -- SIFT based Feature Matching Algorithm for Cartoon Plagiarism Detection -- Image Recognition Technology Based Evaluation Index of Ship Navigation Risk in Bridge Area -- Equalization of Directional Multidimensional Histograms of Matrix and Tensor Images -- Small Object Detection of Remote Sensing Images Based on Residual Branch of Feature Fusion -- Meta-Learning with Logistic Regression for Multi-Classification -- Measurement for Blade Edge Based on Machine Vision.

This book comprises a collection of papers presented at the International Workshop on New Approaches for Multidimensional Signal Processing (NAMSP 2021), held at Technical University of Sofia, Sofia, Bulgaria, during 08-10 July 2021. The book covers research papers in the field of N-dimensional multicomponent image processing, multidimensional image representation and super-resolution, 3D image processing and reconstruction, MD computer vision systems, multidimensional multimedia systems, neural networks for MD image processing, data-based MD image retrieval and knowledge data mining, watermarking, hiding and encryption of MD images, MD image processing in robot systems, tensor-based data processing, 3D and multi-view visualization, forensic analysis systems for MD images and many more.