Image analysis – Image compression or coding
Reexamination Certificate
2007-06-05
2007-06-05
Alavi, Amir (Department: 2624)
Image analysis
Image compression or coding
Reexamination Certificate
active
10458490
ABSTRACT:
This invention reliably encodes an image while continuously inputting the image with a relatively simple configuration. For this purpose, in this invention, input image data is encoded by an encoder (102) and stored in first and second memories. An encoding sequence controller (108) monitors the code amount. Upon determining that the code amount has reached a set value, the encoding sequence controller discards the data in the first memory and instructs the encoder (102) to increase the quantization step and continue encoding. Preceding encoded data is stored in the second memory. The encoded data is re-encoded by a re-encoder (109) using the same quantization step as that of the encoder (102) after the parameter is changed. The re-encoded data is stored in the first and second memories. The quantization steps set in the encoder (102) and re-encoder (109) at this time have such values that re-encoding by the re-encoder (109) is ended before time when the code amount reaches the set value again.
REFERENCES:
patent: 4982285 (1991-01-01), Sugiyama
patent: 5581373 (1996-12-01), Yoshida
patent: 5663763 (1997-09-01), Yagasaki et al.
patent: 5801650 (1998-09-01), Nakayama
patent: 5818970 (1998-10-01), Ishikawa et al.
patent: 5841381 (1998-11-01), Nakayama
patent: 5872599 (1999-02-01), Rosenbrg
patent: 5986594 (1999-11-01), Nakayama et al.
patent: 6125140 (2000-09-01), Wilkinson
patent: 6160844 (2000-12-01), Wilkinson
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: 2002/0078113 (2002-06-01), Nakayama
patent: 2002/0136296 (2002-09-01), Stone et al.
patent: 2003/0002743 (2003-01-01), Ohta et al.
patent: 2003/0031371 (2003-02-01), Kato et al.
patent: 2003/0043905 (2003-03-01), Nakayama et al.
patent: 2003/0086127 (2003-05-01), Ito et al.
patent: 2003/0086597 (2003-05-01), Ohta et al.
patent: 2003/0088598 (2003-05-01), Nakayama
Ito Naoki
Nakayama Tadayoshi
Alavi Amir
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
LandOfFree
Image processing apparatus, control method of the same,... 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 processing apparatus, control method of the same,..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image processing apparatus, control method of the same,... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3887644