WO2012156288A1

WO2012156288A1 - Multi-camera dynamic audiovisual recording device and associated system

Info

Publication number: WO2012156288A1
Application number: PCT/EP2012/058715
Authority: WO
Inventors: Arnaud ANCHELERGUE; Prasad RAMASSAMY; Stanislas WALBERT
Original assignee: Multicam Systems
Priority date: 2011-05-19
Filing date: 2012-05-11
Publication date: 2012-11-22
Also published as: EP2710796A1; FR2975558B1; FR2975558A1

Abstract

The present invention relates to a dynamic recording device for recording audiovisual content, including a means for connecting at least two cameras mounted on an directable support, a means for connecting at least one microphone, a man/machine interface allowing the user to interact with the recording device and/or the elements connected to said recording device, a storage means capable of storing at least one signal that represents a particular position and/or a particular framing of at least one camera, and a data processing means allowing the association of a displayable visual representation (13) with each particular position and/or particular framing of a camera, to allow the user to select a position and/or a particular framing and thus switch from one shot and/or framing to another, using the man/machine interface, the data processing means also being arranged to allow the movement of the selected camera to be masked during the switch thereof to another shot and/or another framing.

Description

Dynamic multi-camera audiovisual recording device and associated system

The present invention relates to the field of audiovisual. The present invention more particularly relates to a device for dynamic recording of audiovisual content multi camera ergonomic and easy to use.

It is known in the prior art, audiovisual recording devices connected to a camera for example, to film a speaker presenting to a public. Generally this camera is fixed in the room and films, with a tight plan, the speaker for example, at his desk or desk. In other cases, for example when the speaker moves, the camera films, with a wide shot the presentation so that the speaker remains in the field of the camera.

This type of device has the disadvantage of providing a monotonous audiovisual document and not very attractive to people who watch it.

Audiovisual recording devices equipped with at least one moving camera are also known for making several planes. Such a device may, for example, alternately frame the speaker, a table and / or a plane framing the speaker and a table. A disadvantage of a recording device type is that when the camera changes plane the movement of the image is visible in the recording which leads to unsightly effects. In addition, this device requires a dedicated person and trained for this type of device.

The present invention aims to overcome at least some disadvantages of the prior art by proposing, in particular, a device Dynamic multi-camera audio recording system ergonomic and easy to use.

This object is achieved by a device for dynamic recording of multi-camera audiovisual content associated with at least one display means comprising connecting means for connecting, to the recording device, at least two cameras each mounted on a support automatically orientable, means for connecting at least one microphone, a man-machine interface allowing the user to interact with the recording device and / or at least one of the elements connected to the latter, suitable memory means storing at least one signal representative of a particular position and / or a particular frame of at least one camera connected to the device and computer means for associating, at each particular position and / or particular framing of a camera connected to the device, a displayable visual representation, on a screen, to enable the user to select a position and / or a particular adrage and thus go from one plane and / or framing to another, via the human machine interface, means being arranged to allow to hide the display and / or the storage of images taken during the moving the selected camera when it moves to another plane and / or another frame.

According to another feature, the man-machine interface of the recording device is a touch screen associated with at least a part of the display means.

According to another feature, the selection, via the man-machine interface, of a new position and / or framing of a camera, different from that of which the output signal is being recorded, is suitable. triggering a delay to delay the switching of the recorded video signal on the output video signal of the newly selected camera, the duration of the delay being at least equal to the travel time of the camera to the selected position and / or framing.

According to another particularity, at least one orientable camera support, connected to the recording device, is able to transmit an electrical signal when it is in motion.

In another feature, a recording module automatically switches the video signal recorded on the output video signal of a still camera when the device detects the movement of the camera, the output video signal of which is being recorded, following a change of position and / or particular framing.

According to another feature, the recording device comprises a real-time tracking module comprising means capable of recognizing the shape of the subject filmed to deduce therefrom, by processing, the direction and speed of movement of the subject and to transmit, to a displacement module, an electrical signal capable of controlling the movement of the steerable support of the camera, whose video signal is being recorded, so as to automatically follow, by the camera, the movements of the subject filmed.

According to another particularity, the recording device comprises an automatic realization module capable of analyzing a scene and automatically selecting, according to criteria stored in at least one database, a particular type of plan and / or framing.

According to another particularity, at least one zone of the display means associated with a touch screen is arranged to display the image of the video signal being recorded.

According to another particularity, the touch screen, associated with a software module is able to detect the contact of the finger of the user or an instrument, on the area of the touch screen, displaying the image of the video signal in the process of recording and calculating the coordinates of the contact point and then interpreting, by the software module, the movement of the finger or the instrument, in contact with the screen, as a movement order of the camera according to the movement defined by the finger or the instrument, the removal of the latter validating the camera position determined by the software module and memorizing it .

According to another particularity, the speed of displacement, of the orientable support of the camera, is proportional to the distance separating the center of the zone of the screen, displaying the image of the video signal being recorded, and the point d the finger of the user or an instrument on the surface of the touch screen.

According to another feature, the direction of movement, of the steerable support of a camera, is a function of the position of the point (s) of support relative to the center of the area of the display means, displaying the image of the video signal being recorded.

In another feature, the touch screen, associated with a software module is able to detect a brief contact of the finger of the user or an instrument on the touch screen area displaying the image of the video signal in short the touching of the finger of the user or of an instrument on the touch screen triggering the calculation and storage of the coordinates of the contact point and its removal being interpreted by the software as a order of movement of the camera to a position such that the center of the video signal image displayed on the screen corresponds to the point selected by the user.

According to another feature, the recording device has means for connecting at least one computer equipment capable of delivering a signal representative of at least one computer image and an image-embedding module, able to insert at least one an overlay window displaying the image of a signal in the area of the display means displaying another signal, at least one signal corresponding to a video signal being recorded and at least one signal to a computer signal. According to another particularity, at least one zone of the display means, associated with a touch screen, is able to display displayable visual representations allowing the user to select the positioning of the display of the overlay window.

According to another feature, the recording device has a titling module for extracting from a database, graphic elements and / or prerecorded text, and to embed them in the image of the recorded audiovisual content.

According to another particularity, the touch screen, associated with a software module is able to detect the contact of the finger of the user or an instrument, on an area of the touch screen displaying an edge of the window incrustation, the sliding of the user's finger or an instrument on the touch screen in one direction or another causing an enlargement or a reduction of the size of the window of inlay, the removal of the finger or the instrument validating the enlargement or reduction of the size of the overlay window.

According to another particularity, the touch screen, associated with a software module is able to detect the contact of the finger of the user or an instrument, on an area of the touch screen displaying the window of inlay , the sliding of the finger of the user or of an instrument on the touch screen being interpreted by the software module as a movement order of the display of the keying window according to the displacement defined by the finger or the instrument, the removal of the latter validating the position of the overlay window.

According to another particularity, the touch screen is arranged to display at least one visual representation comprising a virtual cursor, the movement by pressing the finger of the user or an instrument on the cursor and its displacement, in a direction or a other, causing a reduction in the field of the camera or enlargement, the removal of the finger or the cursor's instrument validating the enlargement or reduction chosen for the given camera.

According to another particularity, the computer means make it possible to display, on an area of the display means, associated with a touch screen, at least one visual representation making it possible to vary at least one parameter of a camera.

According to another particularity, the computer means make it possible to display, on an area of the display means, associated with a touch screen, a virtual keyboard for entering characters.

According to another particularity, the computer means make it possible to display, on an area of the display means, associated with a touch screen, at least one viewable visual representation allowing the user to record, in a memory space, at least a time code.

Another goal is to offer a dynamic audiovisual recording system multi camera ergonomic.

This goal is achieved by a multi-camera audiovisual dynamic recording system comprising a multi-camera audiovisual dynamic recording device and at least two video cameras each mounted on a steerable support and at least one microphone connected thereto.

According to another particularity, the multi-camera audiovisual dynamic recording system also comprises at least one computer equipment capable of delivering a signal representative of at least one computer image.

Other features and advantages of the present invention will appear more clearly on reading the description below, made with reference to the accompanying drawings, in which: FIG. 1 represents an electrical diagram of an exemplary embodiment of a dynamic audiovisual recording device according to the invention.

FIG. 2 represents an exemplary display screen of an interface for producing the recording device according to the invention.

Figure 3 shows an example of a screen page of an interface for adjusting the prepositions of the cameras.

FIG. 4 represents an exemplary display screen of an audio mixing interface according to the invention.

The architecture of an exemplary embodiment of the invention will be presented with reference to the electrical diagram of FIG.

In one embodiment, the dynamic audiovisual recording device according to the invention can be developed around at least one controller (1) or a microprocessor device, associated with at least one memory means (5). ) and in connection with different modules. The storage means (5) may be, for example and without limitation, mass memories, such as, for example, hard disks, internal or external, buffers, vices or any other type of memory . These storage means (5) can, for example, be used to save the operating software or the device. The storage means may be internal and / or external to the audiovisual recording device

In one embodiment, the recording device may comprise a display module (2) capable of at least managing display means (21). These display means (21) may, for example be a monitor or any other type of equivalent screen. In one embodiment, the recording device has a human machine interface to allow a user to interact with the device. This man-machine interface may consist, for example and in no way restrictive, of a console equipped with physical control means such as, for example, conventional buttons, rotary knobs, potentiometers, switches and / or any other control means. Devices may also be connected to the recording device and / or the human-machine interface, such as for example and without limitation, a keyboard, a mouse, a joystick or any other equivalent peripheral device. allow interaction between the recording device and the user. In order to manage this human machine interface, the recording device according to the invention may have a human machine interface module (3).

In another preferred embodiment, the display means (21) of the recording device may be associated with a touch screen (30) to effect an interactive interface between the user and the recording device. This touch screen can be managed by a human machine interface module (3).

According to one embodiment, the touch screen (30) can be a multipoint touch device (or multitouch in English) allowing a man-machine interaction with several points of contact.

In one embodiment, the recording device may comprise different connection means or inputs for receiving at least the output signals of the audiovisual devices connected to the recording device. The device may include connection means (41) for connecting cameras to the device. These connection means can be used to receive the video output signals from the cameras, or any other equivalent video recording means, connected to these inputs. These connection means can also make it possible to exchange signals, between the recording device and the cameras connected to the device, able to modify camera parameters. such as the zoom value, sharpness, contrast, focus or any other settings to adjust the camera.

In one embodiment, the cameras, connected to the recording device, are mounted on steerable supports. The recording device may therefore comprise connection means able to connect these orientable supports and thus make it possible to control these orientable supports,

In one embodiment, the inputs of the device according to the invention may comprise at least one connection means (42) of at least one microphone, the audio signal. The one or more audio inputs (42) can connect at least one microphone to the device.

In one embodiment, the device may also include one or more connection means (43) for connecting at least one computer equipment, such as, for example, a microcomputer, a DVD player, a digital music player, a backup means digital, a mobile phone or any other computer means for delivering and / or contain a signal representative of at least one computer image or other multimedia content.

In one embodiment, in order to mix different signals from different audiovisual inputs (41, 42, 43) and to produce an audiovisual document, the recording device according to the invention may comprise a mixing module (4). This module, by mixing the various audiovisual contents, makes it possible to create a more attractive document.

In one embodiment, the recording device may comprise a recording module (9) for recording, for example, in a memory area of the device, the audiovisual document produced by the device according to the invention. The recording device may also include an output adapted to connect an external backup means and thus allow the recording module to save the audiovisual document on this device. The module recording can realize different audiovisual document different quality such as broadcast quality and in different formats.

In one embodiment, the recording device may also include a displacement module (6). This module serves to control the movement of at least one video camera, mounted on a steerable support, connected to the device. For this, the displacement module (6) can send, for example through software, electrical signals to the motors of the steerable support of the camera, for example, following the instructions of a module of the recording device.

In one embodiment, the recording device may comprise a real-time tracking module (7). This module (7) may, for example, include one or more memory areas in which are stored one or more software, for example, shape recognition, real-time tracking of shapes or points. This real-time tracking module (7) has, among other functions, to recognize the shape of the subject filmed and allow the mobile camera to follow this subject.

In one embodiment, the recording device may have an automatic realization module (8). This module makes it possible, for example, to automatically change the plan according to the displacement of the subject filmed.

In one embodiment, the device according to the invention may comprise a titration module (22). This module allows the user, via a man-machine interface, such as for example, the touch screen (30), to superimposed data in the recorded audiovisual document.

In one embodiment, the recording device may include an image-inlay module (23). This module makes it possible to display, on at least a part of the display means (21), two documents audiovisuals at the same time. In this display mode a second audiovisual document is incorporated into a main audiovisual document.

FIG. 2 shows an exemplary display screen of an interface for producing a recording device according to the invention. In this non-restrictive example, the display means (21) is associated with at least a portion of a touch screen. In this embodiment, the touch screen (30) forms the main interface of the device allowing the user to interact with the recording device. The production interface can present various virtual buttons and various commands necessary for the production and recording of an audiovisual document.

In one embodiment, the screen page of the production interface can be subdivided into several areas corresponding, for example, to specific blocks of functions.

In one embodiment, the production interface may comprise a display area, associated with at least a portion of the touch screen (30), corresponding to a menu block (1 1). This menu block (1 1) can be formed, for example, by a strip comprising different virtual control buttons that can be selected by a finger pressure of the user or by an instrument, such as a stylus, on the surface of the screen displaying these buttons. Some of these virtual buttons may, after selection, display a drop-down menu in which the user can select certain commands. Other buttons may, for example and without limitation, bring up a new screen page with new functions and / or a new interface.

In one embodiment, the production interface may include a display area corresponding to a monitor block (12). This area of the display means (21) may be associated with a touch screen (30) and may be arranged to display the image of the video signal being recorded. According to one embodiment, the monitor block (12) can, for example by means of a touch screen (30), be an interactive zone for moving the mobile camera whose output video signal is being recorded. According to another embodiment, this displacement can be achieved by a mouse connected to the recording device or any other equivalent means such as a touchpad, an inverted mouse (trackball in English) or any other equivalent means.

With reference to the embodiment illustrated in FIG. 2, to move the mobile video camera, the user can, for example, press the center of the area of the touch screen (30) displaying the monitor block (12) with his finger. , then move the latter by sliding on the touch screen (30). To stop the movement, the user can remove his finger from the touch screen. For this, the touch screen can be associated with a software module. When the user presses on the area of the touch screen corresponding to the monitor block, the software module detects the contact of the finger of the user or of an instrument with the touch screen (30). Following this event, the software module can calculate the coordinates of the point of contact. It can also store these values in a memory area. When the user moves his finger or the instrument over the area of the touch screen (30) displaying the monitor block (12), the software module can interpret this displacement as a movement order of the camera support according to the displacement defined by the finger or the instrument.

According to one embodiment, the direction of movement of the steerable support of the video camera may be a function of the position of the fulcrum on the touch screen relative to the center of the display area of the monitor block (12). ). Thus, if the user's finger is to the right of the center of the monitor block (12), the orientable support will move to the right and vice versa so that the movement of the image on the monitor block (12) ), follow the direction of the user's finger.

According to one embodiment, the moving speed of the mobile camera support can be proportional to the distance separating the center of the monitor block (12) and the point of contact of the user on the surface of the touch screen (30). The user can thus vary the speed of movement of the camera by modulating the distance separating his finger from the center of the monitor block (12). This function can be useful, for example, when stopping camera movement. Indeed, in order to obtain a stop of the movement of the camera softer, less abrupt, the user can dampen the movement, before stopping, by bringing his finger towards the center of the monitor block (12) before removing it .

When the user removes his finger from the touch screen, this event will be interpreted by the software module as a validation of the camera position. This determined position of the camera may for example be stored by the software module in a memory zone.

According to one embodiment, when the user moves his finger on the area of the touch screen (30) displaying the monitor block (12), the human-machine interface module (3) sends an electrical signal representative of the displacement of the finger on the touch screen (30), the displacement module (6), for example, via the controller (1). On receipt of this signal, the displacement module (6) transmits a setpoint, at least to a motor of the steerable support of the camera whose output video signal is recorded, so as to control the displacement of this support.

In one embodiment, moving the moving camera can be done by clicking. By pressing a point in the touch screen area (30), displaying the monitor block (12), the user can move the video camera to that point. When the user makes a brief contact on the area of the touch screen (30), displaying the monitor block (12), a software of the HMI module (3), as soon as it detects this brief contact, can, for example, calculate and record, in a memory area, the coordinates of the position of the point of contact. The removal of the finger from the user or instrument can be interpreted by the software as a validation of the position and a movement order of the camera to that position. The human machine interface module (3) can, for example, transmit an electrical signal representative of these coordinates, to the displacement module (6). In response, the displacement module (6) can send a reference to the orientable support of the camera, whose output video signal is recorded, so as to orient the camera so that the center of the displayed image corresponds to the point of contact selected by the user.

In one embodiment, the display screen of the production interface may include a display area corresponding to a source block (13) displaying visual representations enabling the user to select the source or sources from which he wishes to record the source. output signal. The source block (13) can be associated with at least a portion of the touch screen (30)

In the exemplary embodiment, presented in FIG. 2, the source block (13) displays a mosaic of six thumbnails each representing a prerecorded image of a predefined framing or key plan. In this non-limiting example, two video cameras, each mounted on a steerable support, are connected to the recording device. The source block (13) displays two columns of three thumbnails representing the three particular positions and / or particular framing of each camera prerecorded in a memory area of the device. According to the invention, computer means make it possible to associate, with each visual representation or vignette, a particular position and / or particular framing of a camera connected to the device. Thus, the user can select a particular position and / or framing by pressing the area of the touch screen displaying the corresponding thumbnail and thus move from one plane and / or framing to another.

In one embodiment, the thumbnail tile may include a row of thumbnails displaying the video signal image that frames each camera connected to the recording device.

In one embodiment, under the tile mosaic, is also displayed a thumbnail for selecting a signal from a multimedia computer device connected to a computer input (43) of the recording device.

In one embodiment, when the user selects a thumbnail representing a predefined key plane of a camera, the human-machine interface module (3) sends, for example, to the displacement module (6) via the controller ( 1), the electrical signal, pre-recorded, for example, in a memory zone of the storage means of the recording device, associated with the selected vignette. In response, the displacement module (6) sends a reference to the orientable support of the selected mobile camera so as to position the latter on the selected key plane.

According to a particular embodiment, when the user selects a new key plane, a camera different from that whose output video signal is recorded, the recording module (9) does not immediately record this video signal. In order not to record and / or display the images taken during the movement of the image due to the change of plane of the camera, the recording module (9) will wait a predefined period of time before switching the video signal recorded on the output video signal of the newly selected camera. The duration of the delay will be chosen so that it is at least equal to the travel time of the video camera. This predefined delay can, for example, be recorded in a memory space of the recording device.

In one embodiment, in order not to record the movement of the image due to the change of plane of the camera, the recording module (9) can wait for the end of the repositioning of the latter before putting the video signal of out of the camera online. For this, the steerable support of the camera, can transmit an electrical signal to the recording module (9) to inform the movement of the camera. So, as long as this signal is present, the module Recording (9) will not switch the video signal recorded on the video output signal of the camera.

According to another embodiment, the steerable support can transmit an electrical signal when it has completed its movement. The signal may, for example, include an identifier for recognizing the moving camera.

In one embodiment, when the user changes the position and / or the framing plane of the camera, the output video signal of which is already recorded, the recording module automatically switches the signal recorded on the recording signal. exit from another still camera so as to obscure the movement of the camera. The user can preselect, for example before editing, a particular plan for each camera, which will serve as a cutting plane when a camera is moving.

In one embodiment, the menu block (1 1) may include an icon for displaying an interface for adjusting the prepositions defining the different key plans of the cameras. Figure 3 shows an example of a display screen of such an interface.

In one embodiment, the screen page of the interface may be divided into different zones defining different blocks.

A first zone may define a preposition block (31). In the example, in no way limiting, illustrated in FIG. 3, this block comprises a mosaic (31 1) of two columns of three thumbnails corresponding to the three prepositions, or key shots, of the two cameras connected to the device. The block also includes a thumbnail (312) placed under the two columns mentioned above. This thumbnail (312) corresponds to the image of the video signal of the key plane being adjusted.

In one embodiment, the tuning interface may include an area corresponding to a monitor block (32). This monitor block can have the same characteristics as the monitor block (12) of the interface embodiment described above. It allows to visualize the video signal of the camera being adjusted and the touch screen (30), placed above this zone, makes it possible to move the camera during adjustment so as to position it according to the desired plane.

In one embodiment, under the monitor block (32) can be placed a zoom block (33) for adjusting the zoom value of the camera being adjusted. This adjustment can be achieved by a virtual object representing, for example, a potentiometer whose displacement of its cursor, by sliding the finger of the user on the zone displaying this cursor, allows the human machine interface module (3) , send an electrical signal to the camera so as to adjust the value of its zoom. As previously described, the virtual potentiometer slider can also be moved in successive steps or increments.

In one embodiment, the interface may include a color adjustment block (34). This block (34) may, for example, include a zone (341) for adjusting the white balance. This zone (341) may, for example, comprise visual representations, for example two virtual buttons. A first button, for example called "AUTO", can automatically adjust the white balance, for example, through software stored in a memory area of the device. A second virtual button, called ^" MANUAL ^" for example, can be used to set the white balance manually, for which the user must use a white area to create a white area, such as a wall, a table or any other surface. in such a way that the area occupies the entire screen of the monitor block 32. Another method may be to place a white sheet or other white object in front of the lens of the camera. then press the area of the touch screen displaying the virtual button named "MANUAL" so that a software, for example stored in a memory area of the device makes the adjustment.

In one embodiment, the color adjustment block may also include a second zone (342), for example named ^° Brightness to adjust the brightness of the image. This zone can, for example, display two virtual objects, or visual representations, representing a sign "+" and a sign respectively to increase and decrease the brightness. Between the two virtual objects the screen can for example display the value of the brightness.

In one embodiment, the adjustment interface may comprise a button, for example named "Save A pressure on the area of the screen displaying this button enables the human-machine interface module (3) to save the various settings of the parameters in a memory area of the device.

In one embodiment, the adjustment interface may comprise a button, for example named "Restore Default." Pressing on the screen area displaying this button allows the human-machine interface module (3) to restore the parameters. by default, for example made by an administrator, stored in a memory area of the recording device.

In one embodiment, the display screen of the production interface may include a display area corresponding to an overlay block (14) allowing the user to use a display mode in which the block monitor (12) can simultaneously display the images of at least two signals, a first signal corresponding, for example, to the video signal being recorded and a second signal, for example, to a computer signal. According to an exemplary embodiment, a first image can be displayed in full screen and a second image can be displayed in a display window embedded in the first image. The non-limiting example, illustrated in FIG. 2, presents an embodiment in which the monitor block (12) displays a video in a popup window inserted in a multimedia image displayed in full screen. Of course, the reverse display can be realized. FIG. 2 illustrates an embodiment in which the display means (21) of the recording device has an incrustation block (14) comprising 4 thumbnails. Each thumbnail allows the user, by pressing the touch screen (30), where the thumbnail is displayed, to select a preset position of the overlay window. In this embodiment, the user can choose between 4 display positions namely, top right, top left, bottom right or bottom left of the multimedia image.

In one embodiment, the thumbnail, once selected, may be highlighted.

In one embodiment, the size of the overlay window may be modified by the user. To change the size of the window, the user can, for example, press the area of the touch screen (30) displaying a corner or an edge of this window, for example, with his finger or a pointing instrument and move his finger or instrument on the touch screen while maintaining the applied pressure (a technique called "drag and drop ^*). When the user presses on the area of the touch screen corresponding to a corner or edge of the window to be enlarged or reduced, the software module detects the contact of the finger of the user or of an instrument with the touch screen (30) and calculates the coordinates of this point of contact. For example, when the user moves his or her finger or the instrument over the area of the touch screen (30), the software module can interpret this displacement as a change order of the size of the device. display of the embedded window. sliding the user's finger or an instrument on the touch screen in one direction or another causes an enlargement or reduction in the size of the key window and the removal of the finger or instrument the touch screen validates the enlargement or reduction of the size of the overlay window. Of course, the image inside the window is resized according to the size of the window. According to one embodiment, the software resizes the window by maintaining the same homothetic ratio between the sides of the window before and after its size change.

In one embodiment, the user can change the location of the key window within the main image by action on the touch screen (30). To do this, the user can, for example, press an area of the touch screen displaying the overlay window. As previously described, the detection of a pressure on the touch screen triggers the reading of the coordinates of the point of contact by the software module. The sliding of the finger of the user, or of the pointing instrument used, is then interpreted by the software module as a movement order of the display of the keying window according to the displacement defined by the finger or the instrument. The software therefore the direction and distance of the movement of the finger of the user or the instrument, when the latter slides on the touch screen, the initial point of contact until its release. As described above, the release of the finger of the user or the pointing instrument is interpreted by the software module as a validation order of the new position of the point of contact. The software module can then use the displacement and the direction previously calculated to translate each point of the keying window and thus move the display of the latter from its initial position to its new position.

In one embodiment, the touch screen (30) may be a multi-touch device and the software module may include multitouch (multitouch) touch applications. For example, changing the size of the pop-up window can be achieved by pressing the touch screen on an area corresponding to the display of the pop-up window with two fingers and then spreading them while maintaining the pressure on the touch screen (30) to enlarge the window or bringing them together to reduce the size of the window. In one embodiment, the screen of the production interface may comprise a display area corresponding to a titration block (15) allowing the user to embed data, for example and in a non-standard manner. restrictive, a text, a dressing, a sign, a logo in the audiovisual document produced. In one embodiment, a touch screen is associated with the area of the screen displaying this block (15). FIG. 2 shows an example of a non-limiting embodiment in which the titling block (15) comprises two drop-down menus making it possible to call prerecorded data, for example, in a database or a memory zone of the device. The titling block (15) may also include an icon called, for example, "show". Click or tap this icon to display the selected data and a second click to remove it. According to one embodiment, the display and the withdrawal of data can be done gradually, fade.

In one embodiment, an icon of the menu block (1 1), for example named "Billboard ^* can, by a click of the user on the area of the screen displaying this icon, display an interface for defining new panels and / or titration.

In one embodiment, the interface may display, on an area of the display means (21), associated with a touch screen, a graphical representation representing a virtual keyboard allowing the user to enter text for, for example , define new titrations.

In one embodiment, the display means (21) includes a display area, corresponding to a zoom block (16), associated with at least a portion of the touch screen (30) and displaying at least one representation visual device for modifying the zoom value of at least one camera connected to the recording device. In the example illustrated in FIG. 2, the zoom block of the recording device displays a virtual object representing a potentiometer. This virtual potentiometer makes it possible, for example, by dragging its cursor, to modify the zoom value of the camera online. The user can operate the virtual potentiometer in different ways. He can, for example, point with his finger or an instrument, such as a stylus, the virtual cursor and move it by dragging the latter on the touch screen along the axis of the potentiometer.

In one embodiment, when the user presses on the area of the touch screen displaying the visual representation of the cursor of the virtual potentiometer, the software associated with the touch screen detects the contact. The movement of the user's finger along the axis of the potentiometer in one direction or another causes a reduction of the field of the selected camera or its enlargement respectively. When the user removes his finger or instrument from the virtual cursor, the software interprets this event as a validation of the enlargement or reduction chosen for the given camera.

In one embodiment, the user can press, on one of the two extreme points of the virtual potentiometer, according to whether he wants to increase or decrease the value of the zoom, so as to repeat in order to move his cursor, in successive steps, until to the desired value.

Another way to move the potentiometer slider may be to maintain pressure on one end of the virtual potentiometer to move the slider in successive steps as long as the pressure is maintained.

According to one embodiment, when the user moves the cursor of the virtual potentiometer, the human-machine interface module (3) records the value of the signal representative of the position of the cursor and calculates, from this signal, the value of the zoom to apply to the camera, being adjusted, for example, through an algorithm stored in a memory area of the device. The human machine interface module then transmits an electrical signal to the video camera, whose output signal is recorded, so as to actuate the zoom of the latter so as to make its value coincide with that calculated from the cursor position. virtual potentiometer. In one embodiment, the display means (21) includes a display area corresponding to a mixer block (17) associated with at least a portion of the touch screen (30). This mixer block (17) can, for example, display a vumeter for controlling, in real time, the mixed volume. It can also display a virtual potentiometer to adjust the audio gain by dragging, with the finger or an instrument, a virtual cursor to the desired gain value as previously described.

In one embodiment, the mixer block (17) may display a virtual cyclic button to cut and restore the sound. In the example shown in Figure 2, this button is represented by an icon symbolizing a loudspeaker. By pressing the area of the touch screen displaying this icon, the user can mute the sound and press it a second time to restore the sound. This block may also include an icon, for example named ^" + 3dB ^" as in the example illustrated in FIG. 2. By clicking or pressing this icon with the finger or an instrument, the human machine interface module transmits a setpoint to the module of mixing so that it acts, for example, on an amplifier so as to double the value of the audio gain.

In one embodiment, the mixer unit (17) can display a cartridge allowing, by pressing the user on the area of the touch screen displaying the latter, to display a new screen representing an audio mixing interface. According to a non-limiting example, such a cartridge is represented, FIG. 2, by an icon named "MIXER". FIG. 4 shows an exemplary embodiment of a screen page representing the mixing interface according to the invention.

In one embodiment, this screen page can display different virtual objects representing virtual meters (51) and potentiometers (52) respectively making it possible to visualize the sound level and to adjust, by sliding a virtual cursor, the gain audio. The interface can also display virtual cyclic buttons (53) to cut and restore the sound and an icon, for example called ^° - 3dB ^* to divide the sound volume by 2.

The example, shown in Figure 4, has 4 audio inputs named "Line in 1" to "Line in 4" and an output (54), named ^' Output ^' whose sound is not cut and a fifth input (56) In this embodiment, when the sound, of an audio input or output, is cut off, the virtual objects representing the meter, the knob and the virtual button named "-3 dB of this input or output, are no longer displayed and the cyclic button, to cut and restore the sound, is represented by a barred speaker.

In one embodiment, the screen may display an icon (57) representing, for example, a cross allowing, by pressing the finger of the user or an instrument, or a mouse click or any other means of selecting this icon to close this screen page and return to the previous screen page, for example, the production interface.

In one embodiment, the mixing interface may display a virtual object (55) for varying the volume of the headphone output. The volume may, for example, be adjusted by sliding the user's finger over the area of the touch screen displaying the object.

In one embodiment, the display means (21) includes a display area corresponding to a record block (18), associating with at least a portion of the touch screen (30).

In one embodiment, the record block (18) can display visual representations representing virtual buttons allowing, by pressing the user's finger on the area of the touch screen displaying the corresponding button or a mouse click, to perform the usual functions of a recorder, such as, for example, the functions pause, stop, play, record. In the embodiment of FIG. 2, these virtual buttons are represented with the symbols conventionally used. for these functions. Thus the button corresponding to the pause function is represented by two vertical rectangles, the stop function by a square, the reading function by a triangle and the recording function by a circle.

In one embodiment, a virtual button may be highlighted when it has been selected to display the selected function. For this, when a user selects the virtual button, for example, by pressing on the touch screen, the human machine interface module transmits a setpoint to the display module so as to display the virtual object, representing the selected function highlighted.

According to an exemplary embodiment, the virtual button representing the "pause" function can be a cyclic button, a pressing of this button interrupts the current function (for example reading or recording) and a second press makes it possible to resume the function in progress.

In one embodiment, the record block (18) may display the name of the file being recorded. It can also display a counter indicating the recording time. This counter or time code ("Time Code" in English) may, for example, be used for the chapitrage of the audiovisual document, to allow the creation of different chapters within the audiovisual document.

In one embodiment, the recording block (18) may include an icon for placing a marker or mark on the film. This marker allows, for example and without limitation, to identify the beginning of a film passage, a chapter or a key moment of the film. To do this, the computer means can display, on an area of the display means (21), associated with a touch screen (30), at least one displayable visual representation allowing the user, for example, after a click or a pressure on this graphical representation, to record in a memory space of the device at least one time code and to associate this time code with an image of the audiovisual document. This time code can for example be associated with a corresponding text, for example, under the chapter created.

The time code can also be used for signal synchronization or archiving.

In the example shown in Figure 2, the recording file is named "20Q907Q6b_1225.avi" and has been served 1 1 minutes and 12 seconds from the start of ^the recording.

In one embodiment, the recording device may comprise a real-time tracking module (7) (or tracking in English). This module may include, for example, an image processing card. This module can also use a shape recognition algorithm, for example stored in a memory space of the device to automatically detect a subject, a person or more generally a shape, in a scene to deduce, by treatment, the meaning and the speed of movement of the subject. This person may, for example, be a speaker presenting and traveling. Once this person is detected, the real-time tracking module (7) will follow the movements of the latter.

In one embodiment, the real-time tracking module (7) may include acquisition means able to record, at regular intervals, the coordinates of the position of the person being followed. Each acquisition, real-time tracking module (7) can transmit to the displacement module (6) an electrical signal representative of the position of this person so as to automatically follow the camera by the movements of the subject.

In one embodiment, the displacement module (6) may comprise comparison means making it possible to compare the new position of the person followed with respect to the position of the person during the previous acquisition. Following an example of realization, the old position can be stored in a memory area of the device. By comparing the old and the new position of the person, the displacement module (6), for example by means of an algorithm stored in a memory area of the device, can calculate the movement of the person between the two acquisitions. Once the calculated distance, the displacement module (6) can transmit, to the steerable support of the camera, an electrical signal representative of the displacement to be performed so that the camera automatically follows the person filmed.

In one embodiment, the recording device may comprise an automatic realization module (8). This module has the function of performing an assembly automatically without human intervention, based, for example criteria entered into memory.

In one embodiment, the automatic realization module (8) may comprise one or more databases containing, for example, different rules and instructions for implementation and different typical scenes associated with different production parameters. In order to perform the editing, the realization module (8) may have analysis means which analyze, at regular intervals, the recorded scene and compare it with the typical scenes contained in the database or databases. The analysis means selects the typical scene closest to the recorded scene and applies the parameters associated with that scene.

According to an exemplary embodiment, when the person filmed moves, the realization module (8) can select, among the prerecorded key plans, for example, a plane framing the person filmed. Following this selection, the displacement module (6) will transmit, to the steerable support of the camera, a setpoint so that it moves so that the camera frames the selected key plane. It can also transmit, to the real-time tracking module (7), an electrical signal so that the latter recognizes the shape of the person, follows its movement and transmits the information to the displacement module (7) so that the camera moves so that the filmed scene remains framed on the person being followed. If the analysis means of the embodiment module (8) detect that the subject, for example, regularly leaves the field of the camera or that the displacement of the camera is greater than a threshold speed, for example, stored in a base of data of the embodiment module, the analysis means read the rule associated with this situation and, for example, will transmit, to the embodiment module (8), an electrical signal so that it selects a larger plane so as to reduce the speed of movement of the camera. According to another embodiment, the analysis means may transmit, to the embodiment module (8), an electrical signal for selecting from the key planes, a fixed overall plan showing the person's movement zone. filmed.

The present application describes various technical features and advantages with reference to the figures and / or various embodiments. Those skilled in the art will appreciate that the technical features of a given embodiment may in fact be combined with features of another embodiment unless the reverse is explicitly mentioned or it is evident that these features are incompatible. In addition, the technical features described in a given embodiment can be isolated from the other features of this mode unless the opposite is explicitly mentioned.

It should be obvious to those skilled in the art that the present invention allows embodiments in many other specific forms without departing from the scope of the invention as claimed. Therefore, the present embodiments should be considered by way of illustration, but may be modified within the scope defined by the scope of the appended claims, and the invention should not be limited to the details given above.

Claims

1. Dynamic audiovisual content recording device associated with at least one display means (21) comprising connection means (41) for connecting, to the recording device, at least two cameras each mounted on an automatically orientable support, a man-machine interface allowing the user to interact with the recording device and / or at least one of the elements connected to the latter, characterized in that it further comprises connection means (42) of the less a microphone, storage means (5) able to store at least one signal representative of a particular position and / or a particular frame of at least one camera connected to the device and computer means for associating, at each particular position and / or framing of a camera connected to the device, a displayable visual representation, on a screen, to enable the user to select a position and / or a particular framing and thus move from one plane and / or framing to another, through the human machine interface, means being arranged to allow to hide the display and / or storing the images taken while moving the selected camera when switching to another plane and / or another frame.

2. Recording device according to claim 1 characterized in that the human machine interface is a touch screen (30) associated with at least a portion of the display means (21).

3. Recording device according to one of claims 1 to 2 characterized in that the selection, via the human machine interface, a new position and / or framing of a camera, different from that which the output signal is being recorded, is able to trigger a delay to delay the switching of the recorded video signal, to the output video signal of the newly selected camera, the duration of the delay, stored in a memory space of the recording device, being at least equal to the travel time of the video camera to the selected position and / or framing.

4. Recording device according to one of claims 1 to 3 characterized in that at least one orientable camera support, connected to the recording device, is adapted to transmit an electrical signal to the recording module (9) when the support is in motion.

5. Recording device according to one of claims 1 to 4 characterized in that a recording module automatically switches the video signal recorded on the output video signal of a stationary camera when the device detects the movement of the camera, whose output video signal is being recorded, following a particular position and / or framing change.

6. Recording device according to one of claims 1 to 5 characterized in that it comprises a real-time tracking module (7) having means adapted to recognize the shape of the subject filmed to deduce, by treatment, the meaning and the speed of movement (6) of the subject and transmitting, to a displacement module, an electrical signal adapted to control the movement of the orientable support of the camera, whose video signal is being recorded, so as to make automatically follow, by the camera, the movements of the subject filmed.

7. Recording device according to the preceding claim characterized in that it comprises an automatic realization module (8) able to analyze a scene and automatically select, according to criteria stored in at least one database, a type of plan and / or particular framing.

Recording device according to one of claims 2 to 7, characterized in that at least one zone of the display means (21) associated with a touch screen (30) is arranged to display the image of the video signal. in short of registration.

9. Recording device according to the preceding claim characterized in that the touch screen (30), associated with a software module is adapted to detect the contact between the finger of the user or an instrument, on the area of the touch screen (30), displaying the image of the video signal being recorded and calculating the coordinates of the contact point and then interpreting, by the software module, the movement of the finger or the instrument, in contact with the screen, as a camera movement order according to the movement defined by the finger or the instrument, the removal of the latter validating the camera position determined by the software module and storing it.

10. Recording device according to the preceding claim characterized in that the moving speed of the steerable support of the camera is proportional to the distance separating the center of the screen area, displaying the image of the video signal. during recording, and the fulcrum of the user's finger or instrument on the surface of the touch screen (30).

1 1. ^Recording device according to one of claims 9 to 10, characterized in that the direction of movement of the adjustable support of a camera is a function of the position or point (s) support with respect to the center of the area display means (21) displaying the image of the video signal being recorded.

12. Recording device according to one of claims 8 to 1 1 characterized in that the touch screen, associated with a software module is adapted to detect a brief contact of the user's finger or an instrument on the area of the touch screen (30) displaying the image of the video signal being recorded, the contacting of the finger of the user or of an instrument, on the touch screen (30) triggering the calculation and the storing the coordinates of the contact point and its removal being interpreted, by the software, as a movement order of the camera to a position such that the center of the image of the video signal displayed on the screen corresponds to the point selected by the 'user.

13. Recording device according to one of claims 8 to 12 characterized in that it has means for connecting at least one computer equipment capable of delivering a signal representative of at least one computer image and a key module image, adapted to insert at least one overlay window displaying the image of a signal in the area of the display means displaying another signal, at least one signal corresponding to a video signal being recorded and at least one signal to a computer signal.

14. Recording device according to the preceding claim characterized in that at least one zone of the display means (21), associated with a touch screen (30), is adapted to display visual displayable displays allowing the user select the display position of the overlay window.

15. Recording device according to one of claims 13 to 14 characterized in that the touch screen (30), associated with a software module is adapted to detect the contact between the finger of the user or an instrument on an area of the touch screen (30) displaying an edge of the key window, sliding the finger of the user or an instrument on the touch screen (30) in one direction or another causing an enlargement or reduction of the size of the key window, the removal of the finger or the instrument validating the enlargement or reduction of the size of the keying window.

16. Recording device according to one of claims 13 to 15 characterized in that the touch screen (30) associated with a software module is adapted to detect the contact between the finger of the user or an instrument on an area of the touch screen (30) displaying the key window, the sliding of the finger of the user or of an instrument on the touch screen (30) being interpreted by the software module as a moving the display of the overlay window according to the movement defined by the finger or the instrument, the removal of the latter validating the position of the overlay window.

17. Recording device according to one of claims 1 to 16 characterized in that it has a titling module for extracting from a database, graphic elements and / or prerecorded text, and to embed them in the image of the recorded audiovisual content.

Recording device according to one of claims 2 to 17, characterized in that the touch screen (30) is arranged to display at least one visual representation comprising a virtual cursor, the movement by the support of the user's finger or an instrument on the cursor and moving it, in one direction or another, causing a reduction in the field of the camera or an enlargement respectively, the removal of the finger or the instrument of the cursor validating the enlargement or reduction chosen for the given camera.

19. Recording device according to one of claims 2 to 18 characterized in that the computer means make it possible to display, on an area of the display means (21), associated with a touch screen (30), at least one representation. visual to vary at least one parameter of a camera.

20. Recording device according to one of claims 2 to 19 characterized in that the computer means make it possible to display, on an area of the display means (21), associated with a touch screen (30), a virtual keyboard for character input.

21. Recording device according to one of claims 2 to 20 characterized in that the computer means make it possible to display, on an area of the display means (21), associated with a touch screen (30), at least one displayable visual representation allowing the user to record, in a memory space, at least one time code.

22. A multi-camera audiovisual dynamic recording system characterized in that it comprises a multi-camera audiovisual dynamic recording device according to one of claims 1 to 21 and at least two video cameras each mounted on a steerable support and at least one microphone connected thereto.

23. A multi-camera audiovisual dynamic recording system according to the preceding claim characterized in that it comprises at least one computer equipment capable of delivering a signal representative of at least one computer image.