Patent US3778808A successfully refreshed from Google Patents.
Patent US6023520A successfully refreshed from Google Patents.
US6023520A
Expired / Lapsed
US
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Method and apparatus for detecting and displaying a representative image of a shot of short duration in a moving image
Assignee: Hitachi Ltd
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Filing: 1996-07-08
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Granted: 2000-02-08
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Expires: 2016-07-08
Abstract
Abstract A method and apparatus for displaying a representative image corresponding to a shot of a duration within a specified range included in a plurality of shots of a moving image. The moving image includes a plurality of successive frames each having an image and each shot includes a plurality of the successive frames. In the invention a plurality of shot change points are sequentially detected from the moving image. The shot change points represent points between a pair of frames where images of a preceding shot and images of a succeeding shot have changed. Thereafter a detection is performed to determine whether a duration of a shot between a preceding shot change point and a succeeding shot change point is within the specified range. A representative image corresponding to the shot having a duration within the specified range is displayed along with duration time information representing the duration of the shot. A reduced image from the shot can be displayed as the representative image and the number of detected shots having a duration within the specified range can be reduced according to preset conditions.
Inventors
- 👤 Akio Nagasaka
- 👤 Takafumi Miyatake
- 👤 Takehiro Fujita
- 👤 Katsumi Taniguchi
- 👤 Kazuaki Tanaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:27
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/14; H04N5/147; G; G11; G11B; G11B27/00; G11B27/10; G11B27/11; G11B27/19; G11B27/28; G11B27/34; H04N21/00; H04N21/40; H04N21/47; H04N21/478
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
162 words
A method of displaying a representative image corresponding to at least one shot of a duration within a specified range included in a plurality of shots of a moving image, said moving image includes a plurality of successive frames each having an image, and each shot includes at least one frame, said method comprising the steps of: sequentially detecting from said moving image a plurality of shot change points representing points between a pair of frames where images of a preceding shot and images of a succeeding shot have changed; detecting whether a duration of a shot between a preceding shot change point and a succeeding shot change point is within the specified range; grouping shots having a duration within the specified range into a group when said shots having a duration within the specified range repeatedly occur within a predetermined period of time due to frames where there is a quick change; and displaying a representative image corresponding to said group.
Claim 2
Independent Claim
162 words
A method of displaying a representative image corresponding to at least one shot of a duration within a specified range included in a plurality of shots of a moving image, said moving image includes a plurality of successive frames each having an image, and each shot includes at least one frame, said method comprising the steps of: sequentially detecting from said moving image a plurality of shot change points representing points between a pair of frames where images of a preceding shot and images of a succeeding shot have changed; detecting whether a duration of a shot between a preceding shot change point and a succeeding shot change point is within the specified range; grouping shots having a duration within the specified range into a group when said shots having a duration within the specified range repeatedly occur within a predetermined period of time due to frames where there is a quick change; and displaying a representative image corresponding to said group.
Claim 3
Independent Claim
128 words
A method of detecting a part of a moving image having a quick change, said moving image includes a plurality of successive frames each having an image, said method comprising the steps of: sequentially detecting from said moving image a plurality of shot change points representing points between a pair of frames where images of a preceding shot and images of a succeeding shot have changed, each shot including at least one frame; detecting whether a duration of a shot between a preceding shot change point and a succeeding shot change point is within the specified range; and grouping shots having a duration within the specified range into a group when said shots having a duration within the specified range repeatedly occur within a predetermined period of time.
Claim 4
Independent Claim
128 words
A method of detecting a part of a moving image having a quick change, said moving image includes a plurality of successive frames each having an image, said method comprising the steps of: sequentially detecting from said moving image a plurality of shot change points representing points between a pair of frames where images of a preceding shot and images of a succeeding shot have changed, each shot including at least one frame; detecting whether a duration of a shot between a preceding shot change point and a succeeding shot change point is within the specified range; and grouping shots having a duration within the specified range into a group when said shots having a duration within the specified range repeatedly occur within a predetermined period of time.
Claim 5
Dependent Claim
175 words
A display apparatus for displaying a representative image corresponding to at least one shot of a duration within a specified range included in a plurality of shots of a moving image, said moving image includes a plurality of successive frames each having an image, and each shot includes at least one frame, said apparatus comprising: a display having a display screen for displaying images; and a processing apparatus for sequentially detecting from said moving image a plurality of change points representing points between a pair of frames where images of a preceding shot and images of a succeeding shot have changes, detecting whether a duration of a shot between a preceding shot change point and a succeeding shot change point is within the specified range, grouping shots having a duration within the specified range into a group when said shots having a duration within the specified range occur within a predetermined period of time due to frames where there is quick change, and displaying on said display screen a representative image corresponding to said group.
Claim 6
Dependent Claim
175 words
A display apparatus for displaying a representative image corresponding to at least one shot of a duration within a specified range included in a plurality of shots of a moving image, said moving image includes a plurality of successive frames each having an image, and each shot includes at least one frame, said apparatus comprising: a display having a display screen for displaying images; and a processing apparatus for sequentially detecting from said moving image a plurality of change points representing points between a pair of frames where images of a preceding shot and images of a succeeding shot have changes, detecting whether a duration of a shot between a preceding shot change point and a succeeding shot change point is within the specified range, grouping shots having a duration within the specified range into a group when said shots having a duration within the specified range occur within a predetermined period of time due to frames where there is quick change, and displaying on said display screen a representative image corresponding to said group.
Claim 7
Dependent Claim
165 words
A display apparatus for displaying a representative image corresponding to at least one shot of a duration within a specified range included in a plurality of shots of a moving image, said moving image includes a plurality of successive frames each having an image, and each shot includes at least one frame, said apparatus comprising: a display having a display screen for displaying images; and a processing apparatus for sequentially detecting from said moving image a plurality of shot change points representing points between a pair of frames where images of a preceding shot and images of a succeeding shot have changes and each shot includes at least one frame, detecting whether a duration of a shot between a preceding shot change point and a succeeding shot change point is within the specified range, and grouping shots having a duration within the specified range into a group when said shots having a duration within the specified range repeatedly occur within a predetermined period of time.
Claim 8
Dependent Claim
165 words
A display apparatus for displaying a representative image corresponding to at least one shot of a duration within a specified range included in a plurality of shots of a moving image, said moving image includes a plurality of successive frames each having an image, and each shot includes at least one frame, said apparatus comprising: a display having a display screen for displaying images; and a processing apparatus for sequentially detecting from said moving image a plurality of shot change points representing points between a pair of frames where images of a preceding shot and images of a succeeding shot have changes and each shot includes at least one frame, detecting whether a duration of a shot between a preceding shot change point and a succeeding shot change point is within the specified range, and grouping shots having a duration within the specified range into a group when said shots having a duration within the specified range repeatedly occur within a predetermined period of time.
Claim 9
Dependent Claim
208 words
A computer program stored on a computer readable medium for execution by a computer to cause said computer to display a representative image corresponding to at least one shot of a duration within a specified range included in a plurality of shots of a moving image, said moving image includes a plurality of successive frames each having an image, and each shot includes at least one frame, said computer program comprising: a first code for causing said computer to sequentially detect from said moving image a plurality of shot change points representing points between a pair of frames where images of a preceding shot and images of a succeeding shot have changes; a second code for causing said computer to detect whether a duration of a shot between a preceding shot change point and a succeeding shot change point is within the specified range; a third code for causing said computer to group shots having a duration within the specified range into a group when said shots having a duration within the specified range repeatedly occur within a predetermined period of time due to frames where there is a quick change; and a fourth code for causing said computer to display a representative image corresponding to said group.
Claim 10
Dependent Claim
208 words
A computer program stored on a computer readable medium for execution by a computer to cause said computer to display a representative image corresponding to at least one shot of a duration within a specified range included in a plurality of shots of a moving image, said moving image includes a plurality of successive frames each having an image, and each shot includes at least one frame, said computer program comprising: a first code for causing said computer to sequentially detect from said moving image a plurality of shot change points representing points between a pair of frames where images of a preceding shot and images of a succeeding shot have changes; a second code for causing said computer to detect whether a duration of a shot between a preceding shot change point and a succeeding shot change point is within the specified range; a third code for causing said computer to group shots having a duration within the specified range into a group when said shots having a duration within the specified range repeatedly occur within a predetermined period of time due to frames where there is a quick change; and a fourth code for causing said computer to display a representative image corresponding to said group.
Claim 11
Dependent Claim
190 words
A computer program stored in a computer readable medium for execution by a computer to cause said computer to display a representative image corresponding to at least one shot of a duration within a specified range included in a plurality of shots of a moving image, said moving image includes a plurality of successive frames each having an image, and each shot includes at least one frame, said computer program comprising: a first code for causing said computer to sequentially detect from said moving image a plurality of shot change points representing points between a pair of frames where images of a preceding shot and images of a succeeding shot have changes, each shot including at least one frame; a second code for causing said computer to detect whether a duration of a shot between a preceding shot change point and a succeeding shot change point is within the specified range; and a third code for causing said computer to group shots having a duration within the specified range into a group when said shots having a duration within the specified range repeatedly occur within a predetermined period of time.
Claim 12
Dependent Claim
190 words
A computer program stored in a computer readable medium for execution by a computer to cause said computer to display a representative image corresponding to at least one shot of a duration within a specified range included in a plurality of shots of a moving image, said moving image includes a plurality of successive frames each having an image, and each shot includes at least one frame, said computer program comprising: a first code for causing said computer to sequentially detect from said moving image a plurality of shot change points representing points between a pair of frames where images of a preceding shot and images of a succeeding shot have changes, each shot including at least one frame; a second code for causing said computer to detect whether a duration of a shot between a preceding shot change point and a succeeding shot change point is within the specified range; and a third code for causing said computer to group shots having a duration within the specified range into a group when said shots having a duration within the specified range repeatedly occur within a predetermined period of time.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-02-07 | 2003-08-09 | 2004-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-02-07 | 2007-08-09 | 2008-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-02-07 | 2011-08-09 | 2012-02-08 | $7700.00 | Window Closed / Lapsed |