Patent US6449378B1 successfully refreshed from Google Patents.
US6449378B1
Expired / Lapsed
US
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Data processing apparatus and method and storage medium
Assignee: Canon Inc
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Filing: 1999-01-22
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Granted: 2002-09-10
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Expires: 2019-01-22
Abstract
Abstract It is an object of this invention to reliably pad electronic water-mark information even in a moving image constituted by a plurality of frames whose contents hardly change and easily pad electronic water-mark information even in a general moving image obtained by photographing an object at one angle. In order to achieve this object, there is provided an electronic water-mark information padding scheme of padding electronic water-mark information in only intraframe-encoded data without padding any electronic water-mark information in interframe-encoded data.
Inventors
- 👤 Jun Yoshida
- 👤 Kenichi Nagasawa
- 👤 Keiichi Iwamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:24
CPC Classifications
G; G06; G06T; G06T1/00; G06T1/0021; G06T1/0085; G06T2201/00; G06T2201/005; G06T2201/0052
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
85 words
An image processing method, comprising the steps of: an encoding step of encoding image data constituting a moving image, by selectively using intraframe encoding or interframe encoding, wherein said encoding step performs at least frequency conversion processing and variable-length encoding; and an embedding step of embedding a digital watermark in only the image data to be intraframe-encoded, the embedding being performed before the frequency processing is performed in the encoding step, wherein, the digital watermark is not embedded in the image data to be interframe-encoded.
Claim 2
Dependent Claim
85 words
An image processing method, comprising the steps of: an encoding step of encoding image data constituting a moving image, by selectively using intraframe encoding or interframe encoding, wherein said encoding step performs at least frequency conversion processing and variable-length encoding; and an embedding step of embedding a digital watermark in only the image data to be intraframe-encoded, the embedding being performed before the frequency processing is performed in the encoding step, wherein, the digital watermark is not embedded in the image data to be interframe-encoded.
Claim 3
Dependent Claim
20 words
A method according to claim 1 further comprising an encrypting step of encrypting the image data encoded by intraframe encoding.
Claim 4
Dependent Claim
134 words
An image processing method, comprising the steps of: an encoding step of encoding image data constituting a moving image, by selectively using intraframe encoding or interframe encoding, wherein said encoding step performs at least frequency conversion processing and variable-length encoding processing; and an embedding step of embedding a digital watermark in only the image data to be intraframe encoded, the embedding being performed during the encoding step in image data which has been subjected to the frequency conversion processing but which has not yet been subjected to the variable-length encoding processing, wherein the digital watermark is not embedded in the image data to be interframe-encoded, and wherein, the encoding in the encoding step and the embedding in the embedding step are executed without inverse variable-length encoding into each image data constituting the moving image.
Claim 5
Dependent Claim
134 words
An image processing method, comprising the steps of: an encoding step of encoding image data constituting a moving image, by selectively using intraframe encoding or interframe encoding, wherein said encoding step performs at least frequency conversion processing and variable-length encoding processing; and an embedding step of embedding a digital watermark in only the image data to be intraframe encoded, the embedding being performed during the encoding step in image data which has been subjected to the frequency conversion processing but which has not yet been subjected to the variable-length encoding processing, wherein the digital watermark is not embedded in the image data to be interframe-encoded, and wherein, the encoding in the encoding step and the embedding in the embedding step are executed without inverse variable-length encoding into each image data constituting the moving image.
Claim 6
Dependent Claim
20 words
A method according to claim 3 further comprising an encrypting step of encrypting the image data encoded by intraframe encoding.
Claim 7
Dependent Claim
80 words
An image processing apparatus, comprising: encoding means for encoding image data constituting a moving image, by selectively using intraframe encoding or interframe encoding, the encoding means performing at least frequency conversion processing and variable-length encoding processing; and embedding means for embedding a digital watermark in only the image data to be intraframe-encoded, the embedding being performed before frequency conversion processing is performed by the encoding means, wherein, the digital watermark is not embedded in the image data to be interframe-encoded.
Claim 8
Dependent Claim
80 words
An image processing apparatus, comprising: encoding means for encoding image data constituting a moving image, by selectively using intraframe encoding or interframe encoding, the encoding means performing at least frequency conversion processing and variable-length encoding processing; and embedding means for embedding a digital watermark in only the image data to be intraframe-encoded, the embedding being performed before frequency conversion processing is performed by the encoding means, wherein, the digital watermark is not embedded in the image data to be interframe-encoded.
Claim 9
Dependent Claim
130 words
An image processing apparatus, comprising: encoding means for encoding image data constituting a moving image, by selectively using intraframe encoding or interframe encoding, the encoding means performing at least frequency conversion processing and variable-length encoding processing; and embedding means for embedding a digital watermark in only the image data to be intraframe-encoded, the embedding being performed during the encoding by the encoding means in image data which has been subjected to the frequency conversion processing but which has not yet been subjected to the variable-length encoding processing, wherein, the digital watermark is not embedded in the image data to be interframe-encoded, and wherein, the encoding by the encoding means and the embedding by the embedding means are executed without inverse variable-length encoding into each image data constituting the moving image.
Claim 10
Dependent Claim
130 words
An image processing apparatus, comprising: encoding means for encoding image data constituting a moving image, by selectively using intraframe encoding or interframe encoding, the encoding means performing at least frequency conversion processing and variable-length encoding processing; and embedding means for embedding a digital watermark in only the image data to be intraframe-encoded, the embedding being performed during the encoding by the encoding means in image data which has been subjected to the frequency conversion processing but which has not yet been subjected to the variable-length encoding processing, wherein, the digital watermark is not embedded in the image data to be interframe-encoded, and wherein, the encoding by the encoding means and the embedding by the embedding means are executed without inverse variable-length encoding into each image data constituting the moving image.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 2005-09-09 | 2006-03-11 | 2006-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-09-09 | 2010-03-11 | 2010-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-09-09 | 2014-03-11 | 2014-09-10 | $7700.00 | Window Closed / Lapsed |