EP1997109A1 - Conversion d'une image fixe d'un diaporama en une pluralité d'images vidéo - Google Patents

Conversion d'une image fixe d'un diaporama en une pluralité d'images vidéo

Info

Publication number
EP1997109A1
EP1997109A1 EP06845240A EP06845240A EP1997109A1 EP 1997109 A1 EP1997109 A1 EP 1997109A1 EP 06845240 A EP06845240 A EP 06845240A EP 06845240 A EP06845240 A EP 06845240A EP 1997109 A1 EP1997109 A1 EP 1997109A1
Authority
EP
European Patent Office
Prior art keywords
slide show
video frame
images
video
frame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP06845240A
Other languages
German (de)
English (en)
Inventor
Samson J. Liu
Peng Wu
Gabe Beged-Dov
Joe Mccrossan
Paul Boerger
Tomoyuki Okada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hewlett Packard Development Co LP
Original Assignee
Panasonic Corp
Hewlett Packard Development Co LP
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Panasonic Corp, Hewlett Packard Development Co LP filed Critical Panasonic Corp
Publication of EP1997109A1 publication Critical patent/EP1997109A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
    • G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
    • G11B27/034—Electronic editing of digitised analogue information signals, e.g. audio or video signals on discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
    • G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
    • G11B27/036—Insert-editing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/102—Programmed access in sequence to addressed parts of tracks of operating record carriers
    • G11B27/105—Programmed access in sequence to addressed parts of tracks of operating record carriers of operating discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers

Definitions

  • Electronic "slide shows” comprise a valuable mechanism for conveying information.
  • Some effects e.g., region scrolling, zoom in/out
  • other effects e.g., wipe, fade in/out
  • Implementing special effects during creation of the slide show depends on the special effects capability of the playback system — different playback systems are capable of implementing different types of special effects.
  • an existing optical disc player may not be readily usable to implement special effects invented after manufacturing of the disc player.
  • Figure 1 shows a system in accordance with an illustrative embodiment of the invention
  • Figure 2 illustrates a slide show playback system
  • Figure 3 shows a method embodiment
  • Figure 4 illustrates the effect of the method embodiment on an exemplary slideshow
  • Figure 5 illustrates an exemplary association of an audio stream with a video stream.
  • Figure 1 shows an illustrative embodiment of a system 50 comprising a processor 52, storage 54, and one or more input and/or output devices 53.
  • the processor 52 can be any suitable processor for executing software instructions.
  • the input/output devices 53 may comprise an input device such as a keyboard or mouse and an output device such as a display.
  • the storage 54 may be implemented as a combination of volatile and/or non-volatile storage such as random access memory, read-only memory, hard disk drive, etc.
  • the storage 54 contains software that can be executed by processor 52.
  • the software comprises a content authoring module 56, a frame replication module 58, a special effects module 60, and an encoder 62.
  • the various modules 56-62 may comprise modules within a common software application or comprise individual software applications.
  • the various modules are executed by the processor 52 at the direction of a user of the system 50 using input/output devices 53 to create a slide show as described herein.
  • the software modules 56-62 cause the processor to perform any one or more of the actions described below to create a slide show in accordance with an illustrative embodiment of the invention.
  • the term "slide show” is broadly used to refer to any sequence of images to be displayed on a playback system, such as that shown in Figure 2.
  • an optical disc player 55 operatively couples to a display 57.
  • the display 57 may comprise a television, computer monitor or other suitable display device.
  • the optical disc player 55 receives an optical disc on which the slide show generated as described herein has been stored.
  • the optical disc player 55 then plays back the slide show on the display 57.
  • the playback system may also comprise one or more speakers to play audio associated with the slide show.
  • Figure 3 shows a method 70 comprising actions 72-78.
  • Action 72 comprises generating still images. This action may be performed by content authoring module 56.. In the example of Figure 4, this action results in a series of still images 100, 102, 104, 106, and 108.
  • Each still image broadly represents a single slide within a slide show. As shown, each still image 100-108 includes different types of shading to depict that each still image may comprise different information in the slide show.
  • Each still image may comprise text and/or graphics as desired.
  • Each still image may be provided from any of a variety of sources such as digital cameras, scanned photos, etc.
  • timebased slide shows Some types of slide shows are referred to as "timebased" slide shows in that each slide is displayed for a finite amount of time typically specified by the user.
  • the playback system e.g., the optical disc player 55 of Figure 2 shows each slide for the prescribed time period, then switches to the next slide, and so on.
  • the time period for each still image to be displayed is designated by reference numeral 101.
  • the playback system implements a particular video frame rate that refers to the number of video frames that are displayed per second.
  • An exemplary frame rate is 30 frames per second.
  • each still image 100-108 is converted (action 74) into multiple video frame images.
  • the conversion of still images to multiple video frames is in accordance with the frame rate of the applicable playback.
  • the conversion process comprises replicating the associated still image enough times to create a video stream that can be played through the playback system for the desired period of time.
  • the number of the plurality of video frame images that is produced while converting the still images is a function of a frame rate and an amount of time that the still image is to be shown on the display. If 1 for example, the frame rate is 30 frames per second and the author of the slide show intends for a particular still image to be displayed for 5 seconds, then the conversion process of action 74 will entail replicating the still image 149 times to thereby create 150 identical frames of that still image.
  • method 70 comprises implementing special effects on one or more of the replicated video frames.
  • the special effects can comprise any effects now known or later developed such as region scrolling, zoom in/out, wipe, fade in/out, etc.
  • Figure 4 illustrates fading into the next still image.
  • video frames 118-122 comprise varying degrees of alteration to fade into the target still image 102 as depicted at frames 124 and 126.
  • the same fade- in process is also performed for frames 128-130, frames 138-142, and frames 148-150.
  • the type of special effect is selected by the author of the slide show and can be varied from still image to still image.
  • special effects are imposed directly on the replicated video frames. The generation of the multiple repeated frames and the implementation of the special effects on those frames can be performed in a single operation, which may simplify implementation.
  • Method 70 also comprises action 78 which comprise encoding the video frame sequence to create a suitable video stream to be provided to the playback system (e.g., on an optical disc).
  • the encoding process may comprise compression and other suitable techniques.
  • the author of the slide show may desire to have an audio clip play along with the video presentation.
  • the audio may or may not be synchronized to the video frames.
  • Synchronized audio-video means that certain sections of audio are associated with certain still images.
  • Each still image in the slide show has a predetermined presentation timing in a timebased slide show.
  • Synchronized audio permits a user to skip back and forth between still images and have the desired audio segments play in accordance with the particular still images being displayed.
  • Unsynchronized audio means that an audio stream plays while the slide show is being presented, but specific sections of audio are not associated with particular still images.
  • audio can be included with the slide show, in some embodiments in a separate file, and can be synchronized or unsynchronized to the replicated video frames discussed above.
  • Figure 5 illustrates an audio stream 190 associated with the series of replicated video frames 110-134.
  • One or more timestamps 200 and 202 are embedded within the audio stream 190 to synchronize to the video frames in the case in which synchronized audio is desired to include with slide show.
  • the audio stream 190 comprises a separate time stamp associated with each replicated video frame.
  • a time stamp is embedded in the audio stream for every n video frames.
  • Time stamp 200 is mapped to video frame 114, while time stamp 202 is mapped to video frame 132.
  • the value n can be set as desired and in the example of Figure 5 is 10.
  • Intermediate time values between the time stamps can be computed based on the embedded time stamps and the frame rate associated with the video stream.
  • the special effects module 60 or the encoder 62 maps the audio stream's time stamps 200, 202 to the various associated video frames. This mapping ensures that the playback system plays the correct audio segment while displaying the video frames.
  • the time stamps are used to associate audio segments with individual video frames, not just the still images from which the video frames were replicated.
  • Some slide shows are referred to as “browsable” slide shows in that each still image is displayed until a user of the playback system causes the slide show to advance (e.g., by activating a "next" or "back” control).
  • Each still image scene comprises the group of frames that represents a still image (e.g., frames 120-128 in Figure 4) and is referred as a "browsing unit.”
  • each "browsing unit” contains all of the video frames, including replicated and special effect frames, associated with that scene.
  • the navigation of browsable slide shows is from one browsing unit to another (i.e., from one scene to another).
  • Each browsing unit can be a separate video bitstream file or a segment of a video bitstream (comprising, for example, the concatenation of multiple browsing units). Meta-data may be provided to define and describe each browsing unit.
  • the audio stream may not be synchronized to the various slides and thus the audio is continuously decoded and played, with loops if desired, separate from the decoding and playback of the video stream.
  • each slide is potentially displayed for an indefinite period of time. That being the case, an issue arises as to which video frame(s) of the multiple replicated frames or special effect frames to jump into and to "hold” during the potentially indefinite time period.
  • the frame to jump into when the user advances a browsable slide show is predesignated by way of location pointers, or "entry marks," which point to the beginning of a browsing unit. For example, if a browsable slide show is playing and is currently displaying and holding on frame 124 in Figure 4 and the user advances the slide show, a location pointer could be used to point to frame 134 for the next browsing unit.
  • the last frame in a browsing unit will be held indefinitely until a "next" or "previous” control command is issued.
  • the playback system advances to frame 134 and decodes and displays all the frames until the last frame of the browsing unit is reached, which is held until a navigation command is issued.
  • the location pointers point to specific portions of the compressed video stream.
  • a decoder in the playback system begins decoding the compressed video stream from that point on.
  • the frame to which the location pointer maps should be "independently” decodable (such as an "l-frame” in accordance with the MPEP protocol). This means that the playback system should be able to decode the identified frame.
  • Some frames e.g., P-frames and B-frames
  • Such frames are not independently decodable.
  • a pair of pointers is used with regard to each scene, with or without special effects.
  • a first pointer comprises a location pointer into the compressed video stream at which the playback system begins decoding and playing.
  • a second pointer comprises a hold pointer at which point the playback system stops decoding and holds.
  • the first and second pointers may point to replicated frames 124 and 128, respectively (or portions of the compressed video stream associated with those frames). As such, the playback system will jump to frame 124, begin decoding from that frame on and stop at frame 128. The playback will hold on frame 128 until the user opts to advance to the next portion of the slide show.
  • Reciprocal pointers can be implemented when reversing back through a slide show.
  • embodiments of the invention comprise detecting a user's input to advance the slide show and using first and second pointers to begin to decode the slide show at a first video frame and hold the slide show at a second video frame.
  • the playback system generally begins decoding at the beginning of the video stream continues to the end either based on time or based on user input to advance the presentation.
  • the playback order of the browsing units or scenes can be specified as desired.
  • An embodiment of the invention comprises saving each sequence of replicated video frames for a particular still image as a separate file. For Figure 4, for example, replicated frames 110-118 can be saved as one file. Frames 120-128 can be saved as another file and so on. The order of the playback of the various files can be specified as desired.
  • At least one embodiment of the invention comprises a method that comprises generating still images for a slide show, converting at least one of the still images to a plurality of video frame images, and encoding the plurality of video frame images to form a video stream representative of the slide show. The method further comprises implementing a visual effect on at least one of the plurality of video frame images.
  • Converting the at least one of the still images comprises replicating the at least one of the still images multiple times to produce the plurality of video frame images.
  • the method further comprises converting each of the still images to a plurality of video frame images.
  • the method further comprises providing the plurality of video frame images corresponding to each still image as a file separate from files containing video frame images associated with other still images.
  • An associated system comprises a content authoring module to create still images for a slide show, a frame replication module to convert each of the still images into a plurality of video frame images, and an encoder that encodes the plurality of video frame images to form a video stream representative of the slide show.
  • the frame replication module replicates each of the still images a number of times that is a function of a frame rate associated with playback of the slide show.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Television Signal Processing For Recording (AREA)
  • Studio Circuits (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
  • Management Or Editing Of Information On Record Carriers (AREA)

Abstract

L'invention concerne un procédé (70) consistant à générer (72) des images fixes pour un diaporama, à convertir (74) au moins une de ces images fixes en une pluralité d'images vidéo, puis à appliquer (76) un effet visuel à au moins une des images vidéo.
EP06845240A 2006-01-06 2006-12-11 Conversion d'une image fixe d'un diaporama en une pluralité d'images vidéo Withdrawn EP1997109A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US32714606A 2006-01-06 2006-01-06
PCT/US2006/047284 WO2007081477A1 (fr) 2006-01-06 2006-12-11 Conversion d'une image fixe d'un diaporama en une pluralité d'images vidéo

Publications (1)

Publication Number Publication Date
EP1997109A1 true EP1997109A1 (fr) 2008-12-03

Family

ID=37875532

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06845240A Withdrawn EP1997109A1 (fr) 2006-01-06 2006-12-11 Conversion d'une image fixe d'un diaporama en une pluralité d'images vidéo

Country Status (5)

Country Link
EP (1) EP1997109A1 (fr)
JP (1) JP2009529250A (fr)
CN (1) CN101454837B (fr)
HK (1) HK1129767A1 (fr)
WO (1) WO2007081477A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101959090B (zh) 2009-07-20 2013-06-05 中兴通讯股份有限公司 Ason业务路由分离方法及装置
CN101662675B (zh) * 2009-09-10 2011-09-28 深圳市万兴软件有限公司 一种将ppt转换为视频的方法和系统
CN102156613A (zh) * 2011-03-29 2011-08-17 汉王科技股份有限公司 演示文稿的显示方法及装置
CN104572686A (zh) * 2013-10-17 2015-04-29 北大方正集团有限公司 Ppt文件的处理方法和装置
CN105511827B (zh) * 2015-12-04 2018-11-02 广东威创视讯科技股份有限公司 演示文稿播放方法和系统
EP3300383A1 (fr) * 2016-09-26 2018-03-28 TP Vision Holding B.V. Procede de conversion d'un diaporama en une video
CN108322837A (zh) * 2018-01-10 2018-07-24 链家网（北京）科技有限公司 基于图片的视频生成方法及装置
CN109948689B (zh) * 2019-03-13 2022-06-03 北京达佳互联信息技术有限公司 一种视频生成方法、装置、电子设备及存储介质
CN111078070B (zh) * 2019-11-29 2021-06-15 深圳市镜玩科技有限公司 Ppt视频弹幕的播放控制方法、装置、终端及介质
CN111078078B (zh) * 2019-11-29 2021-06-15 深圳市镜玩科技有限公司 视频播放控制方法、装置、终端及计算机可读存储介质
CN111246288A (zh) * 2020-01-22 2020-06-05 福建天泉教育科技有限公司 一种视频化演示pptx文档的方法及终端

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EP0942609A1 (fr) * 1998-03-13 1999-09-15 Matsushita Electric Industrial Co., Ltd. Moyen d'emmagasinage de données, et appareil et procédé pour reproduire les données à partir de celui-là
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JP4542301B2 (ja) 2002-02-27 2010-09-15 ホットアルバムコム株式会社 動画データ生成システム及び動画データ生成方法
US7343052B2 (en) 2002-04-09 2008-03-11 Sonic Solutions End-user-navigable set of zoomed-in images derived from a high-resolution master image
US20040213092A1 (en) * 2003-04-23 2004-10-28 Konica Minolta Photo Imaging, Inc. Input data recording apparatus, and input data recording method
US20060182425A1 (en) * 2005-02-11 2006-08-17 Paul Boerger Converting a still image to a plurality of video frame images

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EP0942609A1 (fr) * 1998-03-13 1999-09-15 Matsushita Electric Industrial Co., Ltd. Moyen d'emmagasinage de données, et appareil et procédé pour reproduire les données à partir de celui-là
US20040252974A1 (en) * 2003-06-13 2004-12-16 Naozumi Sugimura Recording medium and method for reproducing information therefrom

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Also Published As

Publication number Publication date
WO2007081477A1 (fr) 2007-07-19
CN101454837A (zh) 2009-06-10
JP2009529250A (ja) 2009-08-13
HK1129767A1 (en) 2009-12-04
CN101454837B (zh) 2012-09-19

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