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Zhang, Danyang

Zhang, Danyang

Associate Professor

Mathematics and Computer Science

Phone: 718-262-2560
Office Location: AC-2D04

Automatic object detection in digital images has been a fundamental and important research topic in artificial intelligence (AI), pattern recognition (PR), and image processing. The problem is how to design a program that can partition a digital image in such a way that different objects in the image can be distinguished for more meaningful and intelligent analysis. He has been dedicated to designing connected component labeling (CCL) algorithms for object detection and recognition. He is also interested in CBIR (Content-based Image Retrieval), designing and developing network protocols for different computer
networks like wired networks and sensor networks to enhance their performance.
He likes doing research in graph theory and ubiquitous computing as well.

Office Hours



PhD University of Alabama Computer Science 2004 
MS University of Alabama Computer Science 2001 
MS Peking University Information Science 1999 
BS Peking University Information Science 1996 

Areas of Expertise

  • Object Detection
  • Connected Component Labeling
  • Content-based Image Retrieval
  • Computer Networking
  • Graph Theory
  • Ubiquitous Computing

Publications in Field Of Expertise



Refereed Proceedings


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Presented Papers, Lectures, and Exhibitions and Performances

Professional Honors, Prizes, Fellowships

  • • Member of The International Society of Applied Intelligence (ISAI): 2013.
  • • Upsilon Pi Epsilon (UPE) Graduate Awards, University of Alabama: 2003-2004.
  • • The Ryoichi Sasakawa Young Leaders Fellowship (SYLFF Program) in Peking University: 1999.


  • PSC-CUNY 51 Research Award, Connected Components Labeling Algorithm in Optical Character Recognition. 2020-21: $5,995.
  • Moving from Associate to Full Professor Award, CUNY OAA Workshop. 2017-18: $1,000.
  • PSC-CUNY 48 Research Award, Connected Component Labeling Algorithm in Medical Image Processing. 2017-18: $5,937.
  • Thurgood Marshall College Fund (TMCF), Engaging Undergraduates in Research that Speaks their Language. July 2014 - December 2014: $25,000.
  • PSC-CUNY 44 Research Award, Ratio-based Face Recognition Algorithm. 2013-14: $5,970.
  • PSC-CUNY 43 Research Award, Automatic Detailed Localization of Facial Features. 2012-13: $5,987.
  • PSC-CUNY 39 Research Award, Ubiquitous Data Access Model for Mobile Devices. 2008-09: $4,000.
  • PSC-CUNY 38 Research Award, Simulation Studies on a Peer-to-peer Server Recovery Algorithm for Reliable Multicast. 2007-08: $4,090.
  • PSC-CUNY 37 Research Award, A Study on Supporting Time-Critical High-Priority Applications in Scalable but Unreliable Pub-Sub Environment. 2006-07: $3,176.

Other Professional Activities and Public Service

  • • “Object detection in digital images,” a presentation at Math/CS Club at York College: December 10, 2019.
  • • “A gamma-signal-regulated connected components labeling algorithm,” a presentation at the annual symposium of Computer Science PhD program at Graduate Center of The City University of New York (CUNY): May 10, 2019.
  • • “Connected components labeling algorithms,” a presentation at Seminar in the School of Automation and Artificial Intelligence, Huazhong University of Science and Technology, Wuhan, China: April 16, 2018.
  • • “Deblur motion-blurred images with convolutional neural networks,” a presentation at International Young Scholar Forum in Information Technology, Beijing University of Posts and Telecommunications, Beijing, China: December 22, 2017.
  • • “Introduction to computer science research,” a presentation to undergraduate and graduate students majoring in Computer Science at Beijing Institute of Petrochemical Technology, Beijing, China: July 14, 2017.
  • • Present in Math Club at York College: October 20, 2016.
  • • Attend 2016 WiTNY (Women in Technology and Entrepreneurship in New York) Faculty Workshop, Graduate Center, City University of New York: July 11-15, 2016.
  • • Attend CUNY IVE (Institute for Virtual Enterprise) 2016 STEM Curriculum Development Workshop, Graduate Center, City University of New York: June 10, 2016.
  • • Present to CS doctoral students at Graduate Center of CUNY: October 23, 2014.
  • • Present at York Summer Research Program: August 1, 2013.
  • • Attend ABET (Accreditation Board for Engineering and Technology) Symposium 2013: April 11-14, 2013.
  • • Mentor for York Summer Research Program: July 1-August 8, 2013.
  • • Mentor for York Summer Research Program: July 2-August 9, 2012.
  • • Reviewer for International Journal of High Performance Computing and Networking: .
  • • Reviewer for International Journal of Computers and Their Applications: .
  • • Reviewer for the 12th International Conference on Bio-Inspired Computing: Theories and Application (BIC-TA), Harbin, China: December 1-3, 2017.
  • • Revewer for PSC-CUNY Research Award program: 2009-10.
  • • Attended NSF BPC (Broadening Participation in Computing) conference, Los Angeles, CA: January, 2010.
  • • Organized seminar “CodeLabs: Making easy learning C++ and JAVA” at York College: March 31, 2009.
  • • Attended the 12th Sino-American Conference on Education, New York, NY: June 9-13, 2008.
  • • Review the New Media program at Queensborough Community College, CUNY: February 13-15, 2008.
  • • Reviewer for International Conference on Distributed Frameworks for Multimedia Applications 2007 (DFMA’07): 2007.
  • • Reviewer for International Conference on New Technologies, Mobility and Security 2007 (NTMS’2007): 2007.
  • • Reviewer for IEEE International Symposium on Personal, Indoor and Mobile Radio Communications 2007 (PIMRC’07): 2007.
  • • Reviewer for International Workshop on Applications and Services in Wireless Networks 2007(ASWN2007): 2007.
  • • Reviewer for International Workshop on Wireless and Sensor Networks 2005 (WSNET-05): 2005.
  • • Attended NSF BPC (Broadening Participation in Computing) conference, Baltimore, MD: April, 2005.
  • • Judge for the 49th Annual Northeastern New Mexico Regional Science and Engineering Fair: March, 2004.
  • • Reviewer for CIT 2004, The 4th International Conference on Computer and Information Technology: 2004.
  • • Reviewer for IEEE Symposium on Computers and Communications (ISCC): 2003-04.
  • • Reviewer for The 11th International Conference on Computer Communications and Networks (ICCCN): 2002.