Computer analysis of images and patterns Nicolas Tsapatsoulis Andreas Lanitis Marios Pattichis Constantinos Pattichis Christos Kyrkou Efthyvoulos Kyriacou Zenonas Theodosiou Andreas Panayides editors ; Part 2 This volume LNCS 14184 and 14185 constitutes the refereed proceedings of the 20th International Conference CAIP 2023 in Limassol Cyprus in September 2023. The 54 full papers presented were carefully reviewed and selected from 67 submissions. They were organized in the following section as follows: Part I: PAR Contest 2023; Deep Learning; Machine Learning for Image and Pattern Analysis; and Object Recognition and Segmentation. Part II : Biometrics Human Pose Estimation Action Recognition; Biomedical Image and Pattern Analysis; and General Vision AI Applications