Inventor
RATNAKAR VIRESH
US22 patents
⚠️ This page may combine multiple inventors who share the name “RATNAKAR VIRESH”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SEIKO EPSON CORP
15 patentsUS6556688B1Apr 29, 2003
Watermarking with random zero-mean patches for printer tracking
SEIKO EPSON CORP165 citations99
US6421468B1Jul 16, 2002
Method and apparatus for sharpening an image by scaling elements of a frequency-domain representation
SEIKO EPSON CORP229 citations99
US6298166B1Oct 2, 2001
Image transformations in the compressed domain
SEIKO EPSON CORP162 citations99
US6064764AMay 16, 2000
Fragile watermarks for detecting tampering in images
SEIKO EPSON CORP501 citations99
US6038346AMar 14, 2000
Runs of adaptive pixel patterns (RAPP) for lossless image compression
SEIKO EPSON CORP96 citations98
US6278432B1Aug 21, 2001
Image delivery and display system
SEIKO EPSON CORP80 citations96
US6256415B1Jul 3, 2001
Two row buffer image compression (TROBIC)
SEIKO EPSON CORP64 citations96
US6233359B1May 15, 2001
File size bounded JPEG transcoder (FSBJT)
SEIKO EPSON CORP81 citations96
US7050656B2May 23, 2006
Image scaling in the compressed domain
SEIKO EPSON CORP28 citations92
US6625309B1Sep 23, 2003
Image partitioning to avoid overlap transmission
SEIKO EPSON CORP26 citations92
US6574372B2Jun 3, 2003
Wavelet transform coding technique
SEIKO EPSON CORP21 citations92
US6522766B1Feb 18, 2003
Watermarking with random zero-mean patches for copyright protection
SEIKO EPSON CORP46 citations92
US7046818B2May 16, 2006
Standards compliant watermarking for access management
SEIKO EPSON CORP14 citations84
US6928186B2Aug 9, 2005
Semantic downscaling and cropping (SEDOC) of digital images
SEIKO EPSON CORP8 citations74
US7391910B2Jun 24, 2008
LAPE: layered presentation system utilizing compressed-domain image processing
SEIKO EPSON CORP5 citations63
GOOGLE INC
3 patentsUS8373724B2Feb 12, 2013
Selective display of OCR'ed text and corresponding images from publications on a client device
GOOGLE INC17 citations90
US9280952B2Mar 8, 2016
Selective display of OCR'ed text and corresponding images from publications on a client device
GOOGLE INC1 citations61
US8675012B2Mar 18, 2014
Selective display of OCR'ed text and corresponding images from publications on a client device
GOOGLE INC1 citations61