IP Library Granted Patent US 8,571,386
Granted Patent B2
US 8,571,386 · App. 13/232,223 · Granted Oct 29, 2013

Motion blur correction device and motion blur correction method

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Quick Facts
Patent No.
US 8,571,386
App. No.
13/232,223
Granted
Oct 29, 2013
Kind
B2
Abstract

A motion blur correction device includes a motion blur correction section which performs motion blur correction processing on an intended video data, and a correction intensity judgment section which instructs the motion blur correction section to cancel the execution of the motion blur correction processing when the frame rate of the video data is equal to or less than a predetermined value. As a result, motion blur correction is prevented from being automatically performed when motion blur correction is not required.

Claims (49)

1. A motion blur correction device that performs motion blur correction on video data, comprising:

a judgment section which judges a necessity for motion blur correction based on a frame rate of the video data; and

a motion blur correction section which performs motion blur correction processing on the video data used as a judgment object according to details of a judgment result by the judgment section;

wherein the judgment section judges that the motion blur correction processing is not necessary to be performed on the video data used as the judgment object, when the frame rate of the video data is equal to or less than a predetermined value; and

wherein the motion blur correction section cancels execution of the motion blur correction processing on the video data used as the judgment object, when the judgment section judges that the motion blur correction processing is not necessary to be performed.

2. A motion blur correction device that performs motion blur correction on video data, comprising:

a judgment section which judges a necessity for motion blur correction based on a frame rate of the video data; and

a motion blur correction section which performs motion blur correction processing on the video data used as a judgment object according to details of a judgment result by the judgment section;

wherein the judgment section judges a level of necessity for motion blur correction in a plurality of stages, based on the frame rate of the video data;

wherein the motion blur correction section changes an intensity of the motion blur correction processing on the video data used as the judgment object in a plurality of stages, based on the level of necessity for motion blur correction judged by the judgment section; and

wherein the judgment section judges that the level of necessity for motion blur correction is low when the frame rate of the video data is low.

3. A motion blur correction device that performs motion blur correction on video data, comprising:

a judgment section which judges a necessity for motion blur correction based on a frame rate of the video data; and

a motion blur correction section which performs motion blur correction processing on the video data used as a judgment object according to details of a judgment result by the judgment section;

wherein the judgment section judges the necessity for motion blur correction based on a difference or a ratio between an imaging frame rate and a playback frame rate of the video data;

wherein the judgment section judges that the motion blur correction processing is not necessary to be performed on the video data used as the judgment object, when the difference or the ratio between the imaging frame rate and the playback frame rate of the video data is equal to or less than a predetermined value; and

wherein the motion blur correction section cancels execution of the motion blur correction processing on the video data used as the judgment object, when the judgment section judges that the motion blur correction processing is not necessary to be performed.

4. The motion blur correction device according to claim 3 , wherein the judgment section:

judges that the motion blur correction processing is not necessary to be performed, when the difference or the ratio between the imaging frame rate and the playback frame rate of the video data is equal to or less than the predetermined value during low-speed playback where the playback frame rate is lower than the imaging frame rate;

judges that the motion blur correction processing is necessary to be performed, when the difference or the ratio of the imaging frame rate and the playback frame rate of the video data is more than the predetermined value during low-speed playback where the playback frame rate is lower than the imaging frame rate, or during normal-speed playback where the imaging frame rate and the playback frame rate are the same; and

judges that the motion blur correction processing is not necessary to be performed in high-speed playback where the playback frame rate is higher than the imaging frame rate.

5. A video playback apparatus including the motion blur correction device according to claim 3 , comprising:

a playback section which replays video data at an arbitrary frame rate.

6. A video playback apparatus including the motion blur correction device according to claim 3 , comprising:

an imaging section which captures video data at an arbitrary frame rate; and

a playback section which replays the video data at an arbitrary frame rate.

7. A motion blur correction method using a motion blur correction device, comprising:

automatically acquiring a frame rate of video data, and automatically judging a necessity for motion blur correction by the motion blur correction device based on the acquired frame rate; and

performing motion blur correction processing by the motion blur correction device on the video data used as a judgment object according to details of a judgment result by the judging;

wherein the necessity for motion blur correction is judged based on a difference or a ratio between an imaging frame rate and a playback frame rate of the video data;

wherein the judging judges that the motion blur correction processing is not necessary to be performed on the video data used as the judgment object, when the difference or the ratio between the imaging frame rate and the playback frame rate of the video data is equal to or less than a predetermined value; and

wherein, when it is judged that the motion blur correction processing is not necessary to be performed, the performing of the motion blur correction processing on the video data used as the judgment object is canceled.

8. A non-transitory computer-readable storage medium having a program stored thereon that is executable by a computer in a motion blur correction device, the program being executable by the computer to perform functions comprising:

judgment processing for automatically acquiring a frame rate of video data, and automatically judging a necessity for motion blur correction based on the acquired frame rate; and

correction processing for performing motion blur correction processing on the video data used as a judgment object according to details of a judgment result by the judgment processing;

wherein the judgment processing judges the necessity for motion blur correction based on a difference or a ratio between an imaging frame rate and a playback frame rate of the video data;

wherein the judgment processing judges that the motion blur correction processing is not necessary to be performed on the video data used as the judgment object, when the difference or the ratio between the imaging frame rate and the playback frame rate of the video data is equal to or less than a predetermined value; and

wherein the correction processing cancels execution of the motion blur correction processing on the video data used as the judgment object, when the judgment processing judges that the motion blur correction processing is not necessary to be performed.

9. A motion blur correction method using a motion blur correction device, comprising:

automatically acquiring a frame rate of video data, and automatically judging a necessity for motion blur correction by the motion blur correction device based on the acquired frame rate; and

performing motion blur correction processing by the motion blur correction device on the video data used as a judgment object according to details of a judgment result by the judging;

wherein the judging judges that the motion blur correction processing is not necessary to be performed on the video data used as the judgment object, when the frame rate of the video data is equal to or less than a predetermined value; and

wherein, when it is judged that the motion blur correction processing is not necessary to be performed, the performing of the motion blur correction processing on the video data used as the judgment object is canceled.

10. A motion blur correction device that performs motion blur correction on video data, comprising:

automatically acquiring a frame rate of video data, and automatically judging a necessity for motion blur correction by the motion blur correction device based on the acquired frame rate; and

performing motion blur correction processing by the motion blur correction device on the video data used as a judgment object according to details of a judgment result by the judging;

wherein the judging judges a level of necessity for the motion blur correction in a plurality of stages, based on the frame rate of the video data;

wherein in performing the motion blur correction processing, an intensity of the motion blur correction processing on the video data used as the judgment object is changed in a plurality of stages, based on the judged level of necessity for the motion blur correction; and

wherein the judging judges that the level of necessity for motion blur correction is low when the frame rate of the video data is low.

Assignments (3)
CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNOR NAME PREVIOUSLY RECORDED ON REEL 041370 FRAME 0790. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Mar 30, 2017
From: CASIO COMPUTER CO., LTD.
To: BEIJING XIAOMI MOBILE SOFTWARE CO.,LTD.
Reel/Frame 042114/0008 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 16, 2017
From: CASIO COMPUTER CO., LTD.
To: BEJING XIAOMI MOBILE SOFTWARE CO.,LTD.
Reel/Frame 041370/0790 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 14, 2011
From: SHIMIZU, HIROSHI; MURAKI, JUN; HOSHINO, HIROYUKI; ICHIKAWA, ERINA
To: CASIO COMPUTER CO., LTD.
Reel/Frame 026903/0445 →