Gabriel Cristobal is currently a Research Scientist at the Instituto de Optica, Spanish Council for Scientific Research (CSIC). He was a Postdoctoral Fellow at the International Computer Science Institute and the Electronic Research Lab (UC Berkeley) from 1989 to 1992. His current research interests are image processing, pattern recognition, and microscopy. He has been responsible for several national and EU research and development projects. He was a Senior Member of the IEEE, EURASIP Spanish liaison officer for the period 2009-2010, and a member of the ISO/IEC JTC1/SC29/WG1 (JPEG2000). He was co-editor of the books “Optical and Digital Image Processing” by G. Cristobal, P. Schelkens, and H. Thienpont, Wiley VCH, 2011, "Biologically Inspired Computer Vision", Wiley VCH, 2016; and "Modern Trends in Diatom Identification" by G. Cristobal, S. Blanco, and G. Bueno, Springer Nature, 2020.