WO2001006514A1 - Device for interactive and smooth direction control in a compressed digital film and software for managing same - Google Patents
Device for interactive and smooth direction control in a compressed digital film and software for managing same Download PDFInfo
- Publication number
- WO2001006514A1 WO2001006514A1 PCT/FR2000/002029 FR0002029W WO0106514A1 WO 2001006514 A1 WO2001006514 A1 WO 2001006514A1 FR 0002029 W FR0002029 W FR 0002029W WO 0106514 A1 WO0106514 A1 WO 0106514A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- speed
- film
- images
- user
- controlling
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/06—Indicating or scoring devices for games or players, or for other sports activities
- A63B71/0619—Displays, user interfaces and indicating devices, specially adapted for sport equipment, e.g. display mounted on treadmills
- A63B71/0622—Visual, audio or audio-visual systems for entertaining, instructing or motivating the user
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/78—Television signal recording using magnetic recording
- H04N5/782—Television signal recording using magnetic recording on tape
- H04N5/783—Adaptations for reproducing at a rate different from the recording rate
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/06—Indicating or scoring devices for games or players, or for other sports activities
- A63B71/0619—Displays, user interfaces and indicating devices, specially adapted for sport equipment, e.g. display mounted on treadmills
- A63B71/0622—Visual, audio or audio-visual systems for entertaining, instructing or motivating the user
- A63B2071/0638—Displaying moving images of recorded environment, e.g. virtual environment
- A63B2071/0644—Displaying moving images of recorded environment, e.g. virtual environment with display speed of moving landscape controlled by the user's performance
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2220/00—Measuring of physical parameters relating to sporting activity
- A63B2220/17—Counting, e.g. counting periodical movements, revolutions or cycles, or including further data processing to determine distances or speed
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/91—Television signal processing therefor
- H04N5/92—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
- H04N5/926—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback by pulse code modulation
- H04N5/9261—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback by pulse code modulation involving data reduction
Definitions
- the present invention relates to a device making it possible to navigate in an interactive and fluid manner in a compressed digital film as well as to software for its implementation.
- films are increasingly used to present, for example, an apartment, a tourist trip or a demonstration of equipment.
- a video display device such as, for example, a television or a computer monitor is generally implemented, but a spectator or user or user cannot intervene in the progress of the images.
- One of the aims of the present invention is therefore to provide a device for interactively navigating a film, which allows a user to modify the speed of the sequence of images in a film as he sees fit.
- Another object of the invention is to provide such a device which allows several viewing of the same film without the succession of images being always identical.
- a device making it possible to navigate in an interactive and fluid way in a compressed digital film, comprising a computer provided with a sound output, a video output, both connected to a visualization system, as well as an input connected to a means for controlling the direction in series with a means for controlling the speed of unwinding of such a film, which device is characterized, according to the present invention, in that the means for controlling the direction consists of a number buttons each corresponding to a direction in space, each of which allows the computer to process the direction chosen by a user.
- the means for controlling the speed is a joystick whose handling by the user makes it possible to scroll the film at a variable speed.
- the means for controlling the speed is a speed sensor directly connected to a cardio-training apparatus.
- the speed sensor comprises a roller which is in contact with the mobile part of the cardio-training apparatus and which transmits its speed of rotation to a toothed wheel located between an infrared transmitter and an infrared receiver .
- the speed sensor comprises a magnet which passes at regular intervals in front of an induction coil supplying information to the computer which deduces the speed therefrom.
- the speed sensor comprises an optical sensor cooperating with the mobile part of the cardio-training apparatus.
- the present invention also relates to a program or software which is characterized by the fact that it comprises a step of acquiring the speed and the direction desired by a user, a first succession of steps for determining the scrolling speed. images and simultaneously a second succession of steps to determine the path from the desired speed and direction, and a step of displaying the succession of images thus determined.
- a configuration file containing the following information is used:
- the instantaneous speed of a user is calculated as the average of the n previous average speeds Vi.
- the speed of movement of the camera during filming and the number of images per second of the camera during filming, it is determined, as a function of the speed which is seeks to simulate, the jump S corresponding to the number of images to be jumped in each displayed image and the time T corresponding to the time interval between two displayed images.
- arrows are displayed to indicate the directions to be chosen, superimposed on the film, a few seconds before each intersection of the filmed course.
- FIG. 1 shows a block diagram of a device for navigating interactively in a film according to the present invention
- FIG. 2 shows a flowchart of the software for implementing the device according to Figure 1;
- a device for interactively navigating in a compressed digital film comprises, as shown in FIG. 1, a computer 1 provided, on the one hand, with a sound output 2 and a video output 3, both connected to a display system 4, and, on the other hand, an input 5 connected to a means for controlling the direction 6 in series with a means for controlling the speed 7 of unwinding of a displayed film.
- the display system 4 is, for example, a television screen, a computer monitor, a plasma or liquid crystal screen, and more generally any image rendering system which makes it possible to display the images of a film, for example shot outdoors, facilitating the visual immersion of a user.
- the computer 1 is provided with a coding-decoding system called "CODEC " for the decompression of digital images.
- CODEC coding-decoding system
- the “CODEC” is chosen in particular from known systems such as the MJPEG (Motion Joint Picture Expert Group), the MPEG (Motion Picture Expert Group). These different “CODECs” can be used with or without hardware acceleration.
- a very powerful generalist processor is used, or a specific card dedicated to the decompression of images.
- the computer 1 must also allow the storage of the digital film.
- the following media can be used: hard disk, compact optical disk (CD-Rom), digital video disc (DVD).
- buttons or joysticks each corresponding to a direction in space.
- the minimum number of buttons is three: a "left” button, a "right” button and a “straight” button. Pressing one of these buttons allows the computer 1 to memorize the direction chosen by the user.
- the computer controls the overlay display of the film of arrows to inform the user that he will have to choose a direction to continue his progress: there are as many arrows displayed as possible direction and these are oriented according to the direction they indicate.
- the means for controlling speed 7 is a joystick, the handling of which by a user makes it possible to scroll the film at a variable speed which the latter determines directly or indirectly.
- It can also be a speed sensor directly connected to a cardio-training device.
- this speed sensor comprises a roller which is in contact with the mobile part of the cardio-training apparatus and which transmits its speed of rotation to a toothed wheel situated between an infrared transmitter and an infrared receiver .
- a roller sensor Such a sensor can be called a roller sensor.
- this speed sensor comprises a magnet which passes at regular intervals opposite a induction coil supplying information to the computer 1 which deduces the speed therefrom.
- a sensor can be called a magnetic sensor.
- this speed sensor comprises an optical sensor which cooperates with the mobile part of the cardio training apparatus: for example, this mobile part can be constituted by a mat. comprising lines which are arranged at regular intervals and which will be read by the optical sensor.
- the computer 1 includes software which loads the film selected by a user, receives the information emitted by the speed sensor 7, manages the dialogue with the user by displaying the images of the film at the right speed and according to the directional choices of the user.
- This software must have a real-time behavior so as not to generate jerks of images which would be unpleasant to the eye: the simulated forward speed must therefore be as fluid as possible.
- This software whose figure 2 represents the flowchart, uses a configuration file containing the following information:
- the sensor consists of a wheel whose axis of rotation is coupled to electronics from a commercial mouse. The rotation of the wheel causes a rotation of the pointer according to the axis X.
- the instantaneous speed V i is calculated by the method described below.
- - R is the radius of the roulette.
- - nb_pixels is the number of pixels traversed by the mouse cursor since the previous cycle.
- - nb_pixels_pour_un_tour is the number of pixels traversed for a complete revolution of the roulette.
- - nb_radians is the number of radians traveled by the roulette wheel over time T.
- Vi (nb_pixels x 2 ⁇ R) / (nb_pixels_pour_un_tour x T)
- This instantaneous speed Vi which can also come from one of the other speed capture techniques described above, is stored and an average speed is determined with the n previous instantaneous speeds: this gives a low-pass filtering of the instantaneous speed (in practice n is equal to 5, which gives a very satisfactory compromise between filtering and response time).
- the computer 1 includes a “CODEC” for video decompression.
- CODEC video decompression
- - dt_film is the time interval between two images during the shooting of the film
- the value dt_fi! M is 40 milliseconds (ms).
- T_SEUIL is approximately 10 ms.
- the calculation of the index of the next image to be displayed begins with an initialization phase.
- the software memorizes the logic of the journey, as well as the order in which the "ends of the journey” are stored inside the file. In addition, the software must also memorize, for each “end of the journey”, the number of images that compose it, as well as the index of the starting image in the total file. So each image of the digitized film is assigned an index corresponding to the position of the image in this film.
- the filmed route includes 5 “ends of the route” whose logic, during the initialization phase, stores the logic, namely:
- the software memorizes the order in which the "ends of the journey" are stored inside the file (avi).
- the software stores, for each “end of the journey”, the number of images that compose it as well as the starting image in the total file.
- the film must be as fluid as possible, with stable camera movements, that is to say free of jumps, of visible variations in trajectories, vibrations. Such conditions must be fully met, since the film will subsequently be replayed at more or less accelerated speed.
- the film will run according to the effort of the user who can also choose his path, thus avoiding any weariness and any passivity.
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Television Signal Processing For Recording (AREA)
- Processing Or Creating Images (AREA)
- Image Processing (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001511689A JP2003505775A (en) | 1999-07-16 | 2000-07-13 | A device that can smoothly move through compressed digital film interactively and software that manages the device |
CA002379606A CA2379606A1 (en) | 1999-07-16 | 2000-07-13 | Device for interactive and smooth direction control in a compressed digital film and software for managing same |
EP00951672A EP1200961A1 (en) | 1999-07-16 | 2000-07-13 | Device for interactive and smooth direction control in a compressed digital film and software for managing same |
AU64533/00A AU6453300A (en) | 1999-07-16 | 2000-07-13 | Device for interactive and smooth direction control in a compressed digital film and software for managing same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR99/09274 | 1999-07-16 | ||
FR9909274A FR2796513B1 (en) | 1999-07-16 | 1999-07-16 | DEVICE FOR INTERACTIVE AND FLUID DIRECTION IN A COMPRESSED DIGITAL FILM AND SOFTWARE MANAGING THIS DEVICE |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001006514A1 true WO2001006514A1 (en) | 2001-01-25 |
Family
ID=9548205
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2000/002029 WO2001006514A1 (en) | 1999-07-16 | 2000-07-13 | Device for interactive and smooth direction control in a compressed digital film and software for managing same |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1200961A1 (en) |
JP (1) | JP2003505775A (en) |
AU (1) | AU6453300A (en) |
CA (1) | CA2379606A1 (en) |
FR (1) | FR2796513B1 (en) |
WO (1) | WO2001006514A1 (en) |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4278095A (en) * | 1977-09-12 | 1981-07-14 | Lapeyre Pierre A | Exercise monitor system and method |
GB2114901A (en) * | 1982-02-09 | 1983-09-01 | Robert Michael Bannister | Exercise apparatus |
US4674741A (en) * | 1985-08-05 | 1987-06-23 | Bally Manufacturing Corporation | Rowing machine with video display |
JPH02131785A (en) * | 1988-11-11 | 1990-05-21 | Nippon Telegr & Teleph Corp <Ntt> | Motion media communication terminal equipment |
US5362069A (en) * | 1992-12-03 | 1994-11-08 | Heartbeat Corporation | Combination exercise device/video game |
JPH08128219A (en) * | 1994-10-31 | 1996-05-21 | Sato Kogyo Co Ltd | Training facility |
US5667459A (en) * | 1994-11-10 | 1997-09-16 | Su; Li-Ping | Computerized exercise game machine |
EP0830023A1 (en) * | 1996-03-29 | 1998-03-18 | Matsushita Electric Industrial Co., Ltd. | Multimedia optical disk improved in interactive reproduction advancing performance, reproducing device, and reproducing method |
WO1998015112A2 (en) * | 1996-10-04 | 1998-04-09 | Bruce Ewert | Dynamic real time exercise video apparatus and method |
US5923627A (en) * | 1995-08-21 | 1999-07-13 | Matsushita Electric Industrial Co., Ltd. | Optical disc for coordinating the use of special reproduction functions and a reproduction device for the optical disk |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0788094A4 (en) * | 1995-08-21 | 1998-06-24 | Matsushita Electric Ind Co Ltd | Multimedia optical disk capable of developing scenes with full unexpectedness on the basis of interactive control, its reproduction apparatus and its reproduction method |
-
1999
- 1999-07-16 FR FR9909274A patent/FR2796513B1/en not_active Expired - Fee Related
-
2000
- 2000-07-13 EP EP00951672A patent/EP1200961A1/en not_active Withdrawn
- 2000-07-13 AU AU64533/00A patent/AU6453300A/en not_active Abandoned
- 2000-07-13 CA CA002379606A patent/CA2379606A1/en not_active Abandoned
- 2000-07-13 WO PCT/FR2000/002029 patent/WO2001006514A1/en not_active Application Discontinuation
- 2000-07-13 JP JP2001511689A patent/JP2003505775A/en active Pending
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4278095A (en) * | 1977-09-12 | 1981-07-14 | Lapeyre Pierre A | Exercise monitor system and method |
GB2114901A (en) * | 1982-02-09 | 1983-09-01 | Robert Michael Bannister | Exercise apparatus |
US4674741A (en) * | 1985-08-05 | 1987-06-23 | Bally Manufacturing Corporation | Rowing machine with video display |
JPH02131785A (en) * | 1988-11-11 | 1990-05-21 | Nippon Telegr & Teleph Corp <Ntt> | Motion media communication terminal equipment |
US5362069A (en) * | 1992-12-03 | 1994-11-08 | Heartbeat Corporation | Combination exercise device/video game |
JPH08128219A (en) * | 1994-10-31 | 1996-05-21 | Sato Kogyo Co Ltd | Training facility |
US5667459A (en) * | 1994-11-10 | 1997-09-16 | Su; Li-Ping | Computerized exercise game machine |
US5923627A (en) * | 1995-08-21 | 1999-07-13 | Matsushita Electric Industrial Co., Ltd. | Optical disc for coordinating the use of special reproduction functions and a reproduction device for the optical disk |
EP0830023A1 (en) * | 1996-03-29 | 1998-03-18 | Matsushita Electric Industrial Co., Ltd. | Multimedia optical disk improved in interactive reproduction advancing performance, reproducing device, and reproducing method |
WO1998015112A2 (en) * | 1996-10-04 | 1998-04-09 | Bruce Ewert | Dynamic real time exercise video apparatus and method |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 014, no. 363 (C - 0746) 7 August 1990 (1990-08-07) * |
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 09 30 September 1996 (1996-09-30) * |
Also Published As
Publication number | Publication date |
---|---|
FR2796513B1 (en) | 2003-09-26 |
CA2379606A1 (en) | 2001-01-25 |
AU6453300A (en) | 2001-02-05 |
JP2003505775A (en) | 2003-02-12 |
FR2796513A1 (en) | 2001-01-19 |
EP1200961A1 (en) | 2002-05-02 |
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