Ali Zandifar, Ph.D.

                                                       Lead Computer Vision Scientist
                                                     Affine Systems, San Francisco, CA
                                                             alizandusa@gmail.com

                                                           Research Statement
                                                                           CV                                                                               






    Current Activities:

  • Video content-based filtering and labeling, 2D and 3D feature detectors and descriptors, Video-
    source quality detection, face recognition and detection, Internet based computer vision,
    Interactive video analytics, Object detection, machine learning, video content filtering and
    benchmark design

    Previous Activities:

  • Interactive video analytics, large-scale internet-based vision, video annotation, video
    fingerprinting, image segmentation, object tracking and detection, and benchmark design

  • Visible watermarking of document images
  • Invisible watermarking of English/Japanese
  • GPS data compression and decompression
  • Vision-based microscopic PCB inspection, diagnosis and cure  at industrial ink-jet printing
    technology applications
  • Geometric and illumination distortion of scanned images of bound/flat English/Japanese
    documents
  • Easy single/multiple camera calibration with minimal user effort

Issued patents: [17 in total]

  1. Ali Zandifar and Anoop Bhattacharjya, “Fast imaging system calibration”, EPSON R&D Inc., US
    Patent filed Ser. No 11/260,964.
  2. Ali Zandifar and Anoop Bhattacharjya, “Distortion correction of a captured image”, EPSON R&D
    Inc., US Patent filed Ser. No. 11/679,664.
  3. Ali Zandifar and Anoop Bhattacharjya, “Distortion correction of a scanned image”, EPSON R&D
    Inc., US Patent filed Ser. No. 11/679, 648.
  4. Ali Zandifar, “Characterization of a printed droplet”, Epson R&D Inc., US Patent filed Ser. No.
    11/85154.
  5. Ali Zandifar, Che-bin Liu and Jing Xiao, “Extracting data from images”, EPSON R&D Inc., US Patent
    filed Ser. 11/944288.
  6. Ali Zandifar, Che-bin Liu and Jing Xiao, “Embedding data in images”, Epson R&D Inc., US Patent
    filed in Nov. 2007.  
  7. Ali Zandifar, "Image capture and calibration", Epson R&D Inc., US Patent Ser. 12/177700.
  8. Ali Zandifar and Anoop Bhattacharjya, “Low Memory Auto-Focus and Exposure System for Large
    Multi-Frame Image Acquisition", EPSON R&D Inc., US Patent filed Ser. No. 11/ 778968.
  9. Ali Zandifar and Jing Xiao, “Identifying steganographic data in an image”, US Patent Ser.
    11/942464.

Published patents:

  1. Ali Zandifar and Che-bin Liu, “Identifying embedded data in an image”, US Patent filed Ser.
    11/945139. Ali Zandifar and Jing Xiao, “Segmenting a string using similarity values”, Epson R&D
    Inc., US Patent filed Ser. 11/943285 .
  2. Ali Zandifar and Jing Xiao, “String reconstruction using multiple strings”, Epson R&D Inc., US
    Patent filed Ser. 11/948410.
  3. Ali Zandifar and Jing Xiao, “Segmenting a string using similarity values”, Epson R&D Inc., Us
    Patent filed in Nov 2007.
  4. Ali Zandifar, “Simulation of dot-pattern bitmap", Epson R&D Inc., US Patent filed Ser. 12/031217.
  5. Ali Zandifar and Kar-han Tan, "Fault detection of a printed droplet", Epson R&D Inc., US Patent
    Ser. 12/178123.
  6. Ali Zandifar, Jing Xiao and Kar-han Tan, “Image capture, alignment and registration”, Epson R&D
    Inc., US Patent Ser. 12/179324.
  7. Robert Impollonia, Ali Zandifar and Mike Sullivan, "Systems and methods for matching an
    advertisement to a video"
  8. Ali Zandifar, Gilles De Victor, Alex Bronstein and Michael Bronstein, “Hypervide annotation”,
    Novafora Inc, filed in Feb 2009.

    Publications:

  1. Ali Zandifar, A. Chahine, R. Duraiswami and L. S. Davis, ’Video-based Interface to Textual
    Information for the Visually Impaired’, IEEE int. conf. at multimodal interfaces, 2002.
  2. Ali Zandifar, Ser-Nam Lim, N. Gumerov and R. Duraiswami,’Fast Evaluation of Thin Plate Spline
    (TPS) in Computer Vision’, IEEE int. conf. of image processing, ICIP 2004.
  3. N. Gumerov, Ali Zandifar, R. Duraiswami and L. S. Davis, `Structure of Applicable Surfaces from
    Single Views’,ECCV 2004.
  4. Ali Zandifar, R. Duraiswami and L. S. Davis,`Video-based Framework for Analysis of
    Presentations/Posters’ , Int. journal of document analysis and rectification (IJDAR), Nov 2004.
  5. N. Gumerov, Ali Zandifar, R. Duraiswami and L. S. Davis, “3D Structure Recovery and Unwarping
    Surfaces Applicable to Planes”, Int. journal of computer vision (IJCV), Dec 2004.
  6. Ali Zandifar, “Unwarping scanned image of Japanese/English documents”, Int. Conf. on Image
    analysis and processing (ICIAP) 2007.

    Thesis:

  • Ph.D. Thesis, "Computer vision for scene text analysis", Ph.D. Thesis, Advisors: Prof. Rama
    Chellappa, Dr. Ramani Duraiswami and Prof. Larry S. Davis, University of Maryland, Aug 2004.
  • Master Thesis, "Position estimation of a moving object via optical method using extended
    Kalman filtering by pseudo measurements", Advisor: Prof. M.A. Massoumnia, Sharif University of
    Tech., May 1996.

                                                                                                                        Updated: Feb 2011
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