• Publications
  • Influence
Identification of bitmap compression history: JPEG detection and quantizer estimation
  • Z. Fan, R. Queiroz
  • Medicine, Computer Science
  • IEEE Trans. Image Process.
  • 1 February 2003
TLDR
A fast and efficient method is provided to determine whether an image has been previously JPEG compressed. Expand
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JPEG compression history estimation for color images
TLDR
We routinely encounter digital color images that were previously compressed using the Joint Photographic Experts Group (JPEG) standard. Expand
  • 133
  • 8
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Simulation of polycrystalline structure with Voronoi diagram in Laguerre geometry based on random closed packing of spheres
Abstract A type of diagram is proposed as microstructure model of polycrystalline materials, Voronoi diagram in the Laguerre geometry based on random closed packing of spheres (RCP-LV diagram), andExpand
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Automated Inspection of Textile Fabrics Using Textural Models
TLDR
The authors discuss the problem of textile fabric inspection using the visual textural properties of the fabric. Expand
  • 285
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Picture-graphics color image classification
TLDR
We propose an image classification algorithm that classifies a color image into two classes: business graphics or natural picture. Expand
  • 26
  • 4
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Adaptive Sparse Representations for Video Anomaly Detection
TLDR
We present a new joint sparsity model for video anomaly detection that enables the detection of joint anomalies involving multiple objects. Expand
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Video-based real-time on-street parking occupancy detection system
TLDR
We present a video-based on-street parking occupancy detection system that can operate in real time. Expand
  • 35
  • 3
Set of easily implementable coefficients in error diffusion with reduced worm artifacts
  • J. Shiau, Z. Fan
  • Computer Science, Engineering
  • Electronic Imaging
  • 29 March 1996
TLDR
A new error diffusion weight set is presented, which has two advantages over the standard weights. Expand
  • 58
  • 2
Retrieval of gray images from digital halftones
  • Z. Fan
  • Computer Science
  • [Proceedings] IEEE International Symposium on…
  • 10 May 1992
TLDR
Presents a new method for retrieving a gray picture from an orthographic halftone image. Expand
  • 34
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Maximum likelihood estimation of JPEG quantization table in the identification of bitmap compression history
  • Z. Fan, R. Queiroz
  • Computer Science
  • Proceedings International Conference on Image…
  • 10 September 2000
TLDR
A method is presented for the maximum likelihood estimation (MLE) of the JPEG quantization tables. Expand
  • 39
  • 2
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