Image encoding apparatus and control method thereof

Details Image encoding apparatus and control method thereof Image encoding apparatus and control method thereof

2007-03-01

2010-11-16

Mehta, Bhavesh M (Department: 2624)

Image analysis

Image compression or coding

Adaptive coding

C382S176000, C382S232000, C382S234000, C382S244000

Reexamination Certificate

active

07835582

ABSTRACT:
An apparatus and method generate encoded data including lossless- and lossy-encoded data together within a unit time period while fully using the lossy encoding processing capability, by appropriately setting a threshold associated with the number of tiles. To this end, an image encoding apparatus has a lossless encoding processing unit and a lossy encoding processing unit. The lossless encoding processing unit outputs one of lossless-encoded data and non-encoded data from a selection unit to a memory based on the attribute information for each tile. Every time the total data size of non-encoded data output from the selection unit exceeds a predetermined threshold, a resolution converting unit executes processing for decreasing the resolution of the non-encoded data in the memory. Upon completion of storage of data for one page in the memory, a lossy encoding unit begins to generate lossy-encoded data from the non-encoded data.

REFERENCES:
patent: 5581373 (1996-12-01), Yoshida
patent: 5801650 (1998-09-01), Nakayama
patent: 5818970 (1998-10-01), Ishikawa et al.
patent: 5841381 (1998-11-01), Nakayama
patent: 5986594 (1999-11-01), Nakayama et al.
patent: 6408102 (2002-06-01), Nakayama
patent: 6549676 (2003-04-01), Nakayama et al.
patent: 6553143 (2003-04-01), Miyake et al.
patent: 6560365 (2003-05-01), Nakayama et al.
patent: 6567562 (2003-05-01), Nakayama et al.
patent: 6711295 (2004-03-01), Nakayama et al.
patent: 6865299 (2005-03-01), Nakayama
patent: 6898310 (2005-05-01), Ohmi et al.
patent: 6952501 (2005-10-01), Nakayama
patent: 6996593 (2006-02-01), Nakayama
patent: 7106911 (2006-09-01), Ohta et al.
patent: 7127115 (2006-10-01), Osawa et al.
patent: 7194140 (2007-03-01), Ito et al.
patent: 7227998 (2007-06-01), Nakayama et al.
patent: 7236997 (2007-06-01), Nakayama
patent: 7257264 (2007-08-01), Nakayama et al.
patent: 2002/0051223 (2002-05-01), Izumi et al.
patent: 2003/0169452 (2003-09-01), Engbrocks
patent: 2004/0258320 (2004-12-01), Nakayama
patent: 2005/0100226 (2005-05-01), Kajiwara et al.
patent: 2005/0244060 (2005-11-01), Nagarajan et al.
patent: 2005/0276500 (2005-12-01), Nakayama et al.
patent: 2005/0276501 (2005-12-01), Nakayama et al.
patent: 2006/0039626 (2006-02-01), Nakayama
patent: 2007/0025632 (2007-02-01), Nakayama
patent: 2007/0098285 (2007-05-01), Yahata et al.
patent: 2007/0206868 (2007-09-01), Nakayama
patent: 09-149260 (1997-06-01), None
International Standard Document: ISO/IEC IS 14495-1 “Information Technology-Lossless and near-lossless compression of continuous-tone still images: Baseline”, First Edition, Dec. 1, 1999.

Affiliated with

Also associated with

Rating

Image encoding apparatus and control method thereof does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Image encoding apparatus and control method thereof, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image encoding apparatus and control method thereof will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4167851