Patents

·        Granted patents

·        Pending patents

Granted Patents:

 

  1. W. Zeng and S. Lei, “Distortion-adaptive visual frequency weighting,” US Patent 7,035,473, April 25, 2006.
  2. W. Zeng and S. Lei, “Digital watermarking in a perceptually uniform domain,” US Patent 6,792,129, Sept. 14, 2004.
  3. Y. Tan, W. Zeng, and S. Lei, “Method for removing ringing artifacts from locations near dominant edges of an image reconstructed after compression,” US Patent 6,707,952, March 16, 2004.
  4. W. Zeng, S. Lei and S. Daly, “Image coding method using visual optimization,” US Patent 6,658,162, Dec. 2, 2003.
  5. L. Westerman and W. Zeng, “Method for inconspicuously adding tracking data in coded images,” US Patent 6,640,005, October 28, 2003.
  6. W. Zeng, J. Li, and S.-M. Lei, “Joint Coding Method for Images and Videos with Multiple Arbitrarily Shaped Segments or Objects,” US Patent 6,553,148, April 22, 2003.
  7. W. Zeng, S. Lei, and J. Li, “Re-indexing for Efficient Compression of Palletized Images,” US Patent 6,522,783, February 18, 2003.
  8. W. Zeng and S. Lei, “Digital image scrambling for image coding systems,” US Patent 6,505,299, January 7, 2003.
  9. Y. Tan, W. Zeng, and S. Lei, “Method and system for removing color bleeding artifacts by filtering the chrominance plane of decompressed images,” US Patent 6,462,788, Oct. 8, 2002.
  10. W. Zeng, “Method for extracting multiresolution watermark images to determine rightful ownership,” US Patent 6,373,974 , April 16, 2002.
  11. W. Zeng, J. Li, and S.-M. Lei, “Joint Coding Method for Images and Videos with Multiple Arbitrarily Shaped Segments or Objects,” US Patent 6,236,757, May 22, 2001
  12. Y. Chang and W. Zeng, “Method and apparatus for extracting indexing information from digital video data,” US patent 5828809, Oct. 27, 1998.

Pending Patents:

  1. B Xie and W. Zeng,  “Method and apparatus for constant quality based video rate control,” PacketVideo Corporation, provisional patent filed.
  2. W. Zeng, J. Wen, and M. Severa, “Content Access Control by Spatially Shuffling Codewords of Compressed Bitstreams,” PacketVideo Corporation, patent pending.
  3. J. Wen, M. Severa, M. Lutterell, and W. Zeng, “Configurable encryption for access control of digital content,” PacketVideo Corporation, Docket PV01-108-US1, patent pending
  4. S. Deshpande and W. Zeng, “HTTP Streaming of JPEG 2000 images,” Sharp Labs of America, patent pending.
  5. S. Deshpande and W. Zeng, “Error Resilient Digital Video Scrambling,” Sharp Labs of America, patent pending.
  6. W. Zeng, “Directional Filtering for Post-processing Compressed Video,” Sharp Labs of America, patent pending.