Recording medium, an apparatus for recording a moving image, an apparatus and a system for generating a digest of a moving image, and a method of the same

• US 5,809,202 A
• Filed: 10/03/1996
• Issued: 09/15/1998
• Est. Priority Date: 11/09/1992
• Status: Expired due to Term

• Current Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Original Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Inventors: Gotoh, Yukie, Fujimoto, Makoto, Akahori, Hiroshi, Egusa, Yo
• Primary Examiner(s): Chin, Tommy P.
• Assistant Examiner(s): VINCENT, DAVID ROBERT
• Application Number:
  US08/724,969
• Time in Patent Office: 712 Days
• Field of Search: 348/397, 348/398, 348/408, 348/207, 360/5, 386/27, 386/21, 386/33, 386/35, 386/37, 386/38, 386/40, 386/69, 386/117, 358/909.1
• US Class Current: 386/241
• CPC Class Codes: G11B 2220/20 Disc-shaped record carriers
• CPC Class Codes: G11B 2220/65 wherein solid state memory is used for storing indexing information or metadata
• CPC Class Codes: G11B 2220/657 Memory in disc [MID]
• CPC Class Codes: G11B 2220/90 Tape-like record carriers
• CPC Class Codes: G11B 27/105 of operating discs
• CPC Class Codes: G11B 27/107 of operating tapes
• CPC Class Codes: G11B 27/11 by using information not detectable on the record carrier
• CPC Class Codes: G11B 27/28 by using information signals recorded by the same method as the main recording G11B27/22 takes precedence
• CPC Class Codes: G11B 27/326 used signal is a video-frame or a video-field (P.I.P.)
• CPC Class Codes: G11B 27/328 on a tape [TTOC]
• CPC Class Codes: G11B 27/329 on a disc [VTOC]
• CPC Class Codes: G11B 27/34 Indicating arrangements indicating means incorporated in magazine or cassette G11B23/046 and G11B23/0875; indicating measured values in general G01D
• CPC Class Codes: H04N 19/503 involving temporal prediction adaptive coding with adaptive selection between spatial and temporal predictive coding H04N19/107; adaptive coding with adaptive selection among a plurality of temporal predictive coding modes H04N19/109
• CPC Class Codes: H04N 5/144 Movement detection for video coding H04N19/503; analysis of motion in general G06T7/20
• CPC Class Codes: H04N 5/145 Movement estimation for video coding H04N19/51
• CPC Class Codes: H04N 5/147 Scene change detection
• CPC Class Codes: H04N 5/77 between a recording apparatus and a television camera
• CPC Class Codes: H04N 5/85 on discs or drums
• CPC Class Codes: H04N 5/9201 involving the multiplexing of an additional signal and the video signal
• CPC Class Codes: H04N 5/9208 involving the use of subcodes
• CPC Class Codes: H04N 5/926 : by pulse code modulation H04N5/919 takes precedence
• CPC Class Codes: H04N 7/54 : the signals being synchronous H04N21/23602, H04N21/23614, H04N21/2365, H04N21/2368, H04N21/4341, H04N21/4342, H04N21/4347, H04N21/4348 take precedence
• CPC Class Codes: Y10S 358/906 : Hand-held camera with recorder in a single unit

Abstract

A system for generating a digest of a moving image according to the present invention includes: a generating section for generating a moving image having a plurality of frames, and for generating an operation signal in response to an input received by the generating section during the generating of the moving image; a priority assigning section for assigning a priority to each of the plurality of frames as a function of the operation signal; a selecting section for selecting at least one image of a plurality of images corresponding to the plurality of frames, based on the priority; and an output section for outputting at least one image selected by the selecting section.

Claims

1. A system for generating a digest of a moving image, comprising:

a generating means for generating said moving image having a plurality of frames, and for generating an operation signal in response to an input received by said generating means during generating said moving image, said input being derived from a user operation comprising at least one of zoom, fade and focus operations;

a priority assigning means for assigning a priority to each of said plurality of frames as a function of said operation signal;

a selecting means for selecting at least one frame of said plurality of frames, based on said priorities assigned to said plurality of frames; and

a display means for displaying image data corresponding to said at least one selected frame to the exclusion of non-selected frames, as a digest of said moving image.

2. A system according to claim 1, wherein said generating means includes a camera, and said input is supplied to said generating means by an operator of said camera.

3. A system according to claim 1, further comprising:

means for recording said moving image having said plurality of frames and said priority corresponding to each of said plurality of frames into a recording medium; and

means for reading said moving image having said plurality of frames and said priority corresponding to each of said plurality of frames from said recording medium.

4. A system according to claim 1, further comprising:

means for recording said moving image having said plurality of frames and said operation signal into a recording medium; and

means for reading said moving image having said plurality of frames and said operation signal from said recording medium.

5. A system according to claim 1, wherein said priority assigning means includes:

means for storing a state of an image corresponding to a frame previous to an input current frame;

means for receiving an input operation signal, and determining a state of an image corresponding to said input current frame as a function of said input operation signal and said state of said image corresponding to said previous frame; and

means for determining the priority of said input current frame as a function of said state of said image corresponding to said input current frame.

6. A system according to claim 1, wherein said priority assigning means includes:

a plurality of first priority determining means, each of said plurality of first priority determining means including means for storing the state of an image corresponding to a frame previous to an input current frame, means for receiving an input operation signal and for determining the state of an image corresponding to said input current frame as a function of said operation signal and said state of said image corresponding to said previous frame, and means for determining a first priority of said input current frame as a function of said state of said image corresponding to said input current frame;

a weight calculating means coupled to each of said plurality of first priority determining means, for calculating the weight for said first priority determined by each of said plurality of first priority determining means; and

a second priority determining means for determining a second priority of said input current frame based on said respective first priorities which are weighted by said weight calculating means.

7. A method for generating a digest of a moving image, comprising the steps of:

generating said moving image having a plurality of frames;

generating an operation signal in response to an input during generating said moving image, said input being derived from a user operation comprising at least one of zoom, fade and focus operations;

assigning a priority to each of said plurality of frames as a function of said operation signal;

selecting at least one frame of said plurality of frames, based on said priorities assigned to said plurality of frames; and

displaying image data corresponding to said at least one selected frame to the exclusion of non-selected frames, as a digest of said moving image.

8. A method according to claim 7, wherein said priority assigning step includes the steps of:

storing the state of an image corresponding to a frame previous to an input current frame;

receiving an input operation signal, and determining a state of an image corresponding to said input current frame as a function of said input operation signal and said state of said image corresponding to said previous frame; and

determining a priority of said input current frame as a function of said state of said image corresponding to said input current frame.

9. A method according to claim 7, wherein said priority assigning step includes the steps of:

(a) determining a first priority corresponding to a current frame as a function of each of a plurality of input operation signals;

(b) calculating a weight for each of said first priorities obtained by step (a); and

(c) determining a second priority corresponding to said current frame based on said first priorities weighted by the step (b).