*Edited by Andrzej Zak*

Patern recognition, despite its relatively short history, has already found practical application in many areas of human activity. Systems of patern recognition usually support people in performing tasks related to ensuring security, including access to premises and devices, detection of unusual changes (e.g. in medicine, cartography, geology), diagnosing technical conditions of devices, and many others. Nevertheless, patern recognition is probably the most developing area because of the great demand for such solutions in the diferent areas of our lives. In this book we have collected the experience of scientists from diferent parts of the world who have researched diverse areas connected directly or indirectly with patern recognition. We hope that this book will be a treasure trove of knowledge and inspiration for further research in the feld of patern recognition.

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