Patent US8395679B2 successfully refreshed from Google Patents.
US8395679B2
Active / In Force
US
⏱️ 3.7 years remaining
Apparatus and method for color rolling suppression
Assignee: Industry Academic Cooperation Foundation of Yonsei University
•
Filing: 2010-07-15
•
Granted: 2013-03-12
•
Expires: 2030-07-15
Abstract
Abstract An apparatus and method for suppressing color rolling are provided. The apparatus includes a digital signal processor which detects first motion information on a current frame and second motion information on at least one of a plurality of neighboring frames, calculates a gain based on the first and second motion information, and applies the gain to at least one channel of the current frame.
Inventors
- 👤 Bong-hyup Kang
- 👤 Moon-Gi Kang
- 👤 Hyun-Mook Oh
- 👤 Du-sic YOO
- 👤 Joon-young Chang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:43
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/64; H04N9/646; H04N23/00; H04N23/60; H04N23/61; H04N23/70; H04N23/745; H04N23/76; H04N23/80; H04N23/84
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
224 words
An apparatus for suppressing color rolling, comprising: a digital signal processor which detects first motion information on a current frame and second motion information on at least one of a plurality of neighboring frames, calculates a gain based on the first and second motion information with respect to only a portion where no motion is detected, and applies the gain to at least one channel of the current frame, wherein the digital signal processing block comprises: a motion detecting unit which detects a motion by comparing an intensity of at least one block of at least one of the neighboring frames and an intensity of corresponding at least one block of the current frame divided into a plurality of blocks; an average value calculating unit which calculates the first motion information which is a first average intensity of the current frame, with respect to at least one block where the motion is not detected in the current frame, and the second motion information which is a second average intensity of at least one of the neighboring frames with respect to corresponding at least one block therein; and a gain calculating unit which calculates the gain by dividing the second average intensity by the first average intensity; and a control unit which applies the gain to the at least one channel of the current frame.
Claim 2
Independent Claim
224 words
An apparatus for suppressing color rolling, comprising: a digital signal processor which detects first motion information on a current frame and second motion information on at least one of a plurality of neighboring frames, calculates a gain based on the first and second motion information with respect to only a portion where no motion is detected, and applies the gain to at least one channel of the current frame, wherein the digital signal processing block comprises: a motion detecting unit which detects a motion by comparing an intensity of at least one block of at least one of the neighboring frames and an intensity of corresponding at least one block of the current frame divided into a plurality of blocks; an average value calculating unit which calculates the first motion information which is a first average intensity of the current frame, with respect to at least one block where the motion is not detected in the current frame, and the second motion information which is a second average intensity of at least one of the neighboring frames with respect to corresponding at least one block therein; and a gain calculating unit which calculates the gain by dividing the second average intensity by the first average intensity; and a control unit which applies the gain to the at least one channel of the current frame.
Claim 3
Dependent Claim
21 words
The apparatus of claim 1 , wherein the at least one channel comprises red (R), green (G) and blue (B) channels.
Claim 4
Dependent Claim
26 words
The apparatus of claim 1 , wherein the plurality of neighboring frames comprise at least one frame among a plurality of previous frames and future frames.
Claim 5
Dependent Claim
65 words
The apparatus of claim 1 , wherein the first motion information includes an intensity of at least one block of the current frame where no motion is detected, and the second motion information includes an intensity of at least one block of at least one of the neighboring frames corresponding to the at least one block of the current frame where no motion is detected.
Claim 6
Dependent Claim
65 words
The apparatus of claim 1 , wherein the first average intensity is an average of intensities of at least one block of the current frame which does not have the motion, and the second average intensity is an average of intensities of at least one block of at least one of the neighboring frames corresponding to the at least one block of the current frame.
Claim 7
Dependent Claim
26 words
The apparatus of claim 1 , wherein the plurality of neighboring frames comprise at least one frame among a plurality of previous frames and future frames.
Claim 8
Dependent Claim
59 words
The apparatus of claim 1 , wherein the motion detecting unit detects the motion by determining occurrence of the motion if a difference between the intensity of at least one block of at least one of the neighboring frames and the intensity of the corresponding at least one block of the current frame is greater than a threshold value.
Claim 9
Dependent Claim
32 words
The apparatus of claim 1 , wherein the second average intensity is a largest average intensity among average intensities of the neighboring frames with respect to the corresponding at least one block.
Claim 10
Dependent Claim
73 words
The apparatus of claim 8 , wherein the first average intensity is an average of an intensity of at least one block of the current frame where the motion is not detected, and the second average intensity is an average of an intensity of at least one block of at least one of the neighboring frames corresponding to the at least one block of the current frame where the motion is not detected.
Claim 11
Independent Claim
209 words
A method of suppressing color rolling, comprising: detecting first motion information on a current frame and second motion information on at least one of a plurality of neighboring frames, with respect to only a portion where no motion is detected; calculating a gain based on the first and second motion information; and applying the gain to at least one channel of the current frame, wherein the detecting the motion information comprises: dividing the current frame and each of the neighboring frames into a plurality of blocks; detecting a motion by comparing an average intensity of at least one block of at least one of the neighboring frames and an average intensity of at least one block of the current frame divided into a plurality of blocks; and calculating the first motion information which is a first average intensity of the current frame, with respect to at least one block where the motion is not detected in the current frame, and the second motion information which is a second average intensity of at least one of the neighboring frames with respect to corresponding at least one block therein, and wherein the calculating the gain value comprises calculating the gain by dividing the second average intensity by the first average intensity.
Claim 12
Independent Claim
209 words
A method of suppressing color rolling, comprising: detecting first motion information on a current frame and second motion information on at least one of a plurality of neighboring frames, with respect to only a portion where no motion is detected; calculating a gain based on the first and second motion information; and applying the gain to at least one channel of the current frame, wherein the detecting the motion information comprises: dividing the current frame and each of the neighboring frames into a plurality of blocks; detecting a motion by comparing an average intensity of at least one block of at least one of the neighboring frames and an average intensity of at least one block of the current frame divided into a plurality of blocks; and calculating the first motion information which is a first average intensity of the current frame, with respect to at least one block where the motion is not detected in the current frame, and the second motion information which is a second average intensity of at least one of the neighboring frames with respect to corresponding at least one block therein, and wherein the calculating the gain value comprises calculating the gain by dividing the second average intensity by the first average intensity.
Claim 13
Dependent Claim
21 words
The method of claim 10 , wherein the at least one channel comprises red (R), green (G) and blue (B) channels.
Claim 14
Dependent Claim
26 words
The method of claim 10 , wherein the plurality of neighboring frames comprise at least one frame among a plurality of previous frames and future frames.
Claim 15
Dependent Claim
65 words
The method of claim 10 , wherein the first motion information includes an intensity of at least one block of the current frame where no motion is detected, and the second motion information includes an intensity of at least one block of at least one of the neighboring frames corresponding to the at least one block of the current frame where no motion is detected.
Claim 16
Dependent Claim
73 words
The method of claim 10 , wherein the first average intensity is an average of an intensity of at least one block of the current frame where the motion is not detected, and the second average intensity is an average of an intensity of at least one block of at least one of the neighboring frames corresponding to the at least one block of the current frame where the motion is not detected.
Claim 17
Dependent Claim
26 words
The method of claim 10 , wherein the plurality of neighboring frames comprise at least one frame among a plurality of previous frames and future frames.
Claim 18
Dependent Claim
57 words
The method of claim 10 , wherein the detecting the motion is performed by determining occurrence of the motion if a difference between the intensity of at least one block of at least one of the neighboring frames and the intensity of corresponding at least one block of the current frame is greater than a threshold value.
Claim 19
Dependent Claim
32 words
The method of claim 10 , wherein the second average intensity is a largest average intensity among average intensities of the neighboring frames with respect to the corresponding at least one block.
Claim 20
Dependent Claim
73 words
The method of claim 17 , wherein the first average intensity is an average of an intensity of at least one block of the current frame where the motion is not detected, and the second average intensity is an average of an intensity of at least one block of at least one of the neighboring frames corresponding to the at least one block of the current frame where the motion is not detected.
References Cited (Backward Citations)
US20010014125A1
Cited
US7596280B2
Cited
US20080291298A1
Cited
US20090109290A1
Cited
US20090285301A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2016-03-11 | 2016-09-10 | 2017-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2020-03-11 | 2020-09-10 | 2021-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2024-03-11 | 2024-09-10 | 2025-03-12 | $7700.00 | Window Closed / Lapsed |