Currently, I am a researcher and professor at the Institute of Computing, University of Campinas (UNICAMP). I received a bachelor's degree in Computer Science from Federal University of Lavras (UFLA) in 2003. I received the Masters degree (2006) and PhD (2009) in Computer Science from the Institute of Computing, University of Campinas. Finally, I worked at the same Institute as a Postdoc fellow until December 2009.

My main research interests include problems related to Digital Media Forensics, Document Categorization (e.g., images, videos, and texts), Content-Based Image Retrieval, Pattern Analysis and Machine Intelligence for Complex Data, Data Mining, and Broad Class Multi-classification.

If you would like to research in one or more of the following topics, please feel free to contact me. Students are more than welcome. Furthermore, if you have one specific topic in mind and want to discuss it, I'm also open to new ideas.

1. Image, video and text forgery detection
2. Source camera, scanner, and printer identification
3. Photoreaslism vs. natural images categorization
4. Spoofing creating and detection
5. Digital techniques for art authentication
6. Hidden messages detection (Steganography and Steganalysis)

1. Face recognition
2. Feature localization
3. Biometric failure predition
4. Multi-biometrics and fusion

1. Binary and Multi-classification
2. Large-Scale Machine Learning
3. Classification failure predition
4. Meta-recognition and Meta-cognition

1. Scene (e.g., images, videos) description and categorization
2. Object recognition
3. Large-Scale Information Retrieval (e.g., images, videos, and text)