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Patent US6148117A successfully refreshed from Google Patents.
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US6148117A Expired / Lapsed US ⏱️ 0.0 years remaining

Image processing system with alterable local convolution kernel

Assignee: Hewlett Packard Development Co LP
•
Filing: 1996-12-27
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Granted: 2000-11-14
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Expires: 2016-12-27
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Abstract

Abstract A method for image processing combining a device-specific image processing kernel operation with a general image processing kernel operation. Device specific parameters are sent from a host computer to an imaging device. The imaging device selects appropriate device-specific convolution coefficients. The host computer selects additional kernel operations. In a first example embodiment, the device-specific coefficients are then uploaded to the host computer and the host computer convolves the host-specified operations with the device-specific operations. The combined kernel is then downloaded to the imaging device. In an alternative embodiment, the host-specified operations are downloaded to the imaging device for combining. The combined kernels are then used by the imaging device for convolution operations on an image. As a result, host computer software can modify a kernel operation within an imaging device with minimal knowledge of device-specific parameters such as native resolution.

Inventors

  • 👤 Patricia D. Lopez
  • 👤 Dan S. Johnson
  • 👤 Nancy K. Mundelius

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 21:00
CPC Classifications
G; G06; G06T; G06T3/00; G06T3/40; G06T3/403

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 106 words
A method of forming a convolution kernel in an imaging system, the imaging system comprising a host computer and an imaging device that provides an image to the host computer, the method comprising the following steps: (a) sending an imaging parameter from the host computer to the imaging device; (b) selecting, by the imaging device, first convolution coefficients based on the imaging parameter from the host computer; (c) selecting, by the host computer, second convolution coefficients; (d) convolving the second convolution coefficients with the first convolution coefficients to form third convolution coefficients; and (e) convolving, by the imaging device, the third convolution coefficients with an image.
Claim 2
Independent Claim 106 words
A method of forming a convolution kernel in an imaging system, the imaging system comprising a host computer and an imaging device that provides an image to the host computer, the method comprising the following steps: (a) sending an imaging parameter from the host computer to the imaging device; (b) selecting, by the imaging device, first convolution coefficients based on the imaging parameter from the host computer; (c) selecting, by the host computer, second convolution coefficients; (d) convolving the second convolution coefficients with the first convolution coefficients to form third convolution coefficients; and (e) convolving, by the imaging device, the third convolution coefficients with an image.
Claim 3
Dependent Claim 11 words
The method of claim 1 where the imaging parameter is resolution.
Claim 4
Dependent Claim 17 words
The method of claim 1 where the first convolution coefficients form a kernel for spatial low-pass filtering.
Claim 5
Dependent Claim 14 words
The method of claim 1 where the second convolution coefficients form a Laplacian operator.
Claim 6
Dependent Claim 50 words
The method of claim 1 further comprising the following step before step (d): (d1) uploading, by the host computer, from the imaging device, the first convolution coefficients; and further comprising the following step after step (d): (d2) downloading, by the host computer, to the imaging device, the third convolution coefficients.
Claim 7
Dependent Claim 27 words
The method of claim 1 further comprising the following step before step (d): (d1) downloading, by the host computer, to the imaging device, the second convolution coefficients.

References Cited (Backward Citations)

US4330833A Cited
US4955024A Cited
US4937774A Cited
EP0407213A2 Cited
US4969043A Cited
US5131057A Cited
US5299029A Cited
US5363213A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2003-11-14 2004-05-15 2004-11-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2007-11-14 2008-05-15 2008-11-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2011-11-14 2012-05-15 2012-11-14 $7700.00 Window Closed / Lapsed

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