FR3105492A1 - Method and device for preventing motion sickness by observing image content displayed on a screen in a moving vehicle, in particular in a highly automated vehicle - Google Patents

Abstract

TITLE: Method and device for preventing motion sickness on observation of image content displayed on a screen in a moving vehicle, in particular in a highly automated vehicle Method consisting in: - recording a trajectory planning signal ( 135) which represents the planned trajectory of the vehicle (100) and a display signal (140) which represents at least one application presented on the screen (110), and - determining an image motion signal (145 ) to offset the background image content (150) relative to the displayed image content (115) using the path planning signal (135) and the display signal (140). Figure 1

Description

Method and device for preventing motion sickness by observing image content displayed on a screen in a moving vehicle, in particular in a highly automated vehicle

FIELD OF THE INVENTION

The present invention relates to a method and a device for preventing motion sickness by observing image content displayed on a screen in a moving vehicle, in particular in a highly automated vehicle.

STATE OF THE ART

Travel sickness, also called motion sickness, can occur when using different means of transport such as cars, buses, boats or planes. Motion sickness can be caused by the discontinuity or disorganization between different sense organs, for example, by the disorganization between the sense of balance and visual perceptions. We can, for example, focus on the content of an image or if we look at the screen, we perceive a tendency of the vehicle, but visually there is no change.

To prevent motion sickness, it is possible to control the vehicle or the trajectory of a very highly automated vehicle so that the driving style or the trajectory of the vehicle for the occupants of the vehicle produces as little kinetic effect as possible. Document DE 10 2017 208 583 A1 describes such a solution.

In addition, it is possible with a screen, for example, of a Smartphone, to simulate the effects of movement of the background which is slightly offset from the representations of the foreground when the mobile phone is operating by also applying an effect. 3d.

PURPOSE OF THE INVENTION

In this context, the aim of the present invention in this context is to develop a method making it possible to reduce motion sickness during the observation of an image content displayed on a screen of a moving vehicle, in particular of a vehicle traveling in highly automated mode.

The invention also aims to develop a computer program for implementing the method.

DISCLOSURE AND ADVANTAGES OF THE INVENTION

To this end, the invention relates to a method for preventing motion sickness during the observation of an image content displayed on a screen in a vehicle in circulation, in particular in a vehicle traveling in a very automated manner, this method of recording a path planning signal representing the planned path of the vehicle and a display signal representing at least one application presented on the image screen and determining an image motion signal for shifting the content background image representing the background of the displayed image content of at least one application displayed on the screen using the path planning signal and the display signal to prevent motion sickness upon viewing the content image displayed on the screen in the moving vehicle.

The solution according to the invention makes it possible, based on the parameters of a trajectory planning of a vehicle traveling in highly automated mode, to determine a specific movement of an image plane, for example, of the background of an image. presented on a mobile screen or on a screen fixedly integrated in the vehicle, so that with the aid of the movement of the image, for example a sliding of the background of the image, to prevent motion sickness of vehicle passengers.

Advantageously, the use of the data for the planning of the trajectory makes it possible to determine the specific image movements avoiding the onset of motion sickness in advance, which avoids the delay between the perception of a movement of circulation and of an image movement. The method according to the invention can be applied in particular in combination with the screen of a mobile device allowing the user, for example, in an application, to avoid motion sickness in various vehicles or means of transport.

In other words, the object of the invention is a method of preventing motion sickness when observing image content displayed on a screen in a moving vehicle, in particular a vehicle traveling in highly automated mode. The method includes at least a step of recording a path planning signal and a display signal as well as a step of determining an image movement signal. The path planning signal recorded in the recording step represents the planned path of the vehicle. The display signal which is also recorded in the recording step represents at least one application displayed on the screen. In the determining step, using the path planning signal and the display signal of the image movement signal to move / drag the background image content which represents the background of the displayed image content, is determined with respect to the displayed image content of at least one application presented on the screen. The sliding / displacement of the image background content represented relative to the displayed image content, is thus done to prevent motion sickness when viewing the image content on the screen in a moving vehicle.

The vehicle can be a vehicle traveling in autonomous mode, for example, a motor vehicle, a bus or bus or a train. The trajectory planning signal is, for example, supplied by a vehicle control unit serving for the planning of the trajectory. The path planning signal may, for example, include information about planned longitudinal and transverse acceleration, or curving speed, and specific path information such as the inclines of the path. The display signal is used to record a number of the current specifications of the applications shown on the display. The recording stage is continuous or intermittent. The image content presented on the screen is a moving or moving image, for example, that of a film or of an essentially static representation, for example, of a text or of an overall representation. an information program in text.

In one embodiment, the determining step is by using the path planning signal to determine a motion sickness parameter. The motion sickness parameter represents a physical quantity characteristic of motion sickness for the planned trajectory. The image movement signal is determined using the motion sickness parameter. A physical quantity relating to motion sickness is, for example, the inclination of the vehicle or the foreseeable transverse or longitudinal acceleration of the vehicle or a particular feature of the journey such as, in particular tight curves or a set of curves following one another in close proximity or again any combination of these sizes.

Advantageously, this avoids the background shift of the content of the image in the foreground with parameters relating to motion sickness to avoid the symptoms of motion sickness.

In the step of determining the image movement signal, according to one embodiment, the direction of shift of the background of the image content is determined. Additionally or alternatively, the offset path of the image content background is determined. This advantageously makes it possible to achieve a targeted offset of the background of image content, for example, depending on the current position or the inclination of the vehicle. This solution has the advantage of displaying, for the observer of the image content represented on the screen, by sliding, visual information concerning the situation and the inclination of the vehicle with respect to a virtual fixed point in order to present image content displayed and minimize motion sickness.

Further, in the recording step, the recorded display signal is input, according to one embodiment, with a plane parameter. The plane parameter is for a number of sliding display planes that represent at least one application presented on the screen. Depending on the application, the image content displayed in multiple clips is shifted, for example, if the application displays an intermediate clip between the foreground and background, at the bottom. In the determining step, the image motion signal is determined by using the plane parameter to shift at least one display plane presented between the background of the image content relative to the displayed image content for at least one. minus an application presented on the screen. Advantageously, this makes it possible to reduce the distortion between the movement of the vehicle and the visual perception.

In the recording step, according to one embodiment, a user signal is recorded. The user signal represents, for example, the user-specific offset intensity. In the determining step, the image movement signal is further determined using the user signal. Advantageously, this makes it possible to modify the displacement of the background of the content of an image according to the individual needs of the user, observing the screen, for example, according to the sensitivity to motion sickness or only after a certain travel time or a period of observation of the image content presented on the screen, for example, using a limit value relating to the duration of the continuously activated lighting of the screen.

In the recording step, according to one embodiment, a seat position signal is additionally recorded. The seat position signal represents the orientation of the viewer's seat or base of the screen relative to the direction of travel of the vehicle. In the determining step, the additional image movement signal is determined using the seat position or sitting position signal. For example, the seat position signal includes information as to whether the screen viewer is seated in the direction of travel of the vehicle or in the opposite direction. This solution has the advantage of varying the displacement according to the position of the observer's seat, for example, in addition, by using the user signal, in the case of a very high sensitivity to motion sickness, in the case of traffic with a seat position or sitting position opposite to the direction of travel, it is possible, for example, to make the shift of the image content of the background more intense.

Further, in the recording step, according to one embodiment, an orientation signal is additionally recorded. The orientation signal is used to display the orientation direction of an image format as portrait format or as cross format, marine format, of the image content presented on the screen. In the determining step, the motion signal of the image is additionally determined using the orientation signal. Advantageously, this is made possible since the offset of the background content, for example, displays the direction of the offset regardless of whether it is determined whether the image content corresponds to a portrait format or a marine format. This is advantageous, especially when using the method in combination with the screen for a portable device, for example a mobile.

According to one embodiment, the method further comprises a step of providing the image movement signal. The image movement signal is supplied to the interface with the display. The screen can be integrally integrated into the vehicle and thus form part of the vehicle. The screen can also be a component of a mobile device, for example, a mobile or tablet display. The providing step is to control the offset of the background of the image content represented as the background for the displayed image content, relative to that displayed image content of at least one application presented on the screen.

The method can be implemented as a program or a circuit or a mixed form of a program and an integrated circuit in a control apparatus or device.

The subject of the invention is also a device designed to carry out the steps of the method presented above in various embodiments, by controlling them or by applying the method. This variant embodiment of the invention in the form of a device makes it possible to solve the problem posed quickly and efficiently.

The device comprises at least one computing unit for processing the signals or data, at least one memory unit for recording the signals or the data, at least one interface with a sensor or an actuator for recording the sensor signals or for transmitting data or control signals intended for actuators and / or at least one communication interface, to record or transmit data integrated into the communication protocol. The computing unit is, for example, a signal processor, a microcontroller or the like; the memory unit may be flash memory, EEPROM, or magnetic memory unit. The communications interface is designed to record data via a wireless link and / or where applicable a wired link for recording and reception; the communication interface records the data related to the line or transmits the data under these conditions. Data, for example, of an electrical or optical nature is recorded from a corresponding data transmission line or it is transmitted over a data transmission line.

The device according to the invention is, for example, an electrical device which processes signals supplied by a sensor and emits these signals according to the control and / or data signals. The device has an interface in the form of a circuit and / or program interface. In the case of realizing the interface in the form of a circuit, it is, for example, part of an ASIC system, which have different functions of the basic device. But it is also possible that the interface is composed of its own circuit or is formed at least in part of discrete components. In the case of a program implementation, the interfaces are existing program modules, for example, in the microcontroller alongside other program modules.

Advantageously, the invention relates to the computer program product or more simply the computer program with a program code recorded on a medium readable by a machine or a memory such as a semiconductor memory, a hard disk memory or an optical memory make it possible to execute, apply and / or control the steps of the method according to the characteristics developed above, in particular when the computer program product or program is executed by a computer or a device of this type.

The present invention will be described in more detail below with the aid of embodiments shown schematically in the accompanying drawings in which:

schematic representation of a vehicle equipped with a device corresponding to an exemplary embodiment of the invention,

schematic representation of a vehicle equipped with a device corresponding to an exemplary embodiment of the invention,

schematic representation of a vehicle equipped with a device corresponding to an exemplary embodiment of the invention, and

flowchart of a method according to an exemplary embodiment.

DESCRIPTION OF AN EMBODIMENT

The is a schematic representation of a vehicle 100 equipped with a device 105 for preventing motion sickness during the observation of an image content 115 displayed on a screen 110 in a moving vehicle 100, in particular in a moving vehicle 100 in highly automated mode according to an exemplary embodiment of the invention. The vehicle 100 is, for example, a vehicle such as a passenger vehicle or the like; in addition to the device 105 and the screen 110, it also comprises a trajectory planning control unit 120.

The device 105 includes a recording facility 125 and a determination facility 130. The recording facility 125 records a path planning signal 135 from the path planning control unit 120 and a display signal. 140 for the screen 110. The trajectory planning signal 135 represents the planned trajectory of the vehicle 100. The display signal 140 represents at least one application displayed on the screen 110, for example, a specification of the application, the duration of display of the application on the screen 110 or the number of applications presented on the screen 110. The determination installation 130 is carried out so that by using the path planning signal 135 and the signal display 140, present an image movement signal 145 to move and / or slide, the image background 150 presented as background with respect to the displayed image content 115 of the application presented on the screen year 110. The frame motion signal 145 is determined to prevent motion sickness when viewing the content of frame 115 on screen 110 in vehicle 100 in motion.

The device 105 which transmits a signal is connected to the screen 110 or can be connected to the latter, for example, by a radio link. The device 105 is connected to the trajectory planning control unit 120 or optionally with at least one vehicle sensor installation 100. The trajectory planning signal 135 and the display signal 140 are recorded continuously or continuously. discontinuously. The path planning signal 135 includes, for example, information relating to an acceleration maneuver, a braking maneuver, a change of direction maneuver along the planned route as well as information relating to the planned control of the vehicle 100 traveling by. very automatic mode, for example, for guidance. The image motion signal 145 thus determined includes, for example, information about the frequency or repetition rate of the offset of the background image content 150 from the displayed image content 115.

Motion sickness strikes about a tenth to a fifteenth of the population and develops during the use of a means of transport, for example, of a motor vehicle, such as the vehicle 100 presented here or also on ships. or in airplanes, due to the distortion between the different sense organs and the sense of balance as well as visual perceptions, for example, when feeling the tilt of a vehicle without visual change when reading a book or that we focus on the screen 110. The symptoms of motion sickness are variable; however, they are usually manifested by a strong feeling of discomfort. In the case of movement in a vehicle 100 traveling in highly automated mode, this dependence on anti-motion sickness means, in particular if the driver is no longer activated by the driving mission, but by secondary activities triggering or promoting potential motion sickness because movement information will be processed directly even if the visual focus is different, for example, that of a book or of a screen 110. Read and work in a focused manner on a screen 110 of a mobile, a tablet , an electronic book reader or a portable while traveling with the vehicle 100 increases the onset of motion sickness. By rotating such an electronic display medium, it is possible to simulate a background movement effect. This is done by offsetting the background in the background from the representations in the foreground if the electronic display memory, for example, a laptop, is rotated. This creates a 3D effect. The information about the rotation is obtained in a device equipped with a built-in gyro sensor or a speed sensor. The proposal presented here is displayed using the trajectory planning data, recorded using the trajectory planning signal 135 for the background motion effect, i.e. displacement / shifting of the content of 'image 115 displayed as a background, relative to the background image content 150 relative to the displayed image content 115, in a targeted manner, as an anti-motion sickness means, envisaged for the screen 110 in a vehicle traveling in autonomous mode 100. The use of the trajectory planning data advantageously makes it possible to predict motion sickness because the parameter in the foreground, for example, is in advance of a few milliseconds up to a few seconds, which could be used, in a known manner for moving the image motion signal 145 of the image content 115 displayed as a background relative to the displayed image content 115, with the objective of reducing motion sickness.

Further, the determination facility 130 according to an exemplary embodiment is designed to determine the image motion signal 145, the background shift direction of the image content 150, and in addition or alternatively, the shift path. the content of the background image 150.

The determination facility 130 according to an exemplary embodiment is designed to determine a motion sickness parameter using the trajectory planning signal 135. The motion sickness parameter represents a physical quantity concerned with motion sickness for the planned trajectory. Under these conditions, the determination facility 130 is also configured to determine the image motion signal 145 using the determined parameter of motion sickness. When a vehicle in autonomous mode 100 is traveling in a curve, all the control parameters of the vehicle 100 are calculated beforehand using the trajectory planning control unit 120. This is possible because the curve and its inclination are known by detailed map information and is accurately measured by sensors, for example, using radar or lidar. Thus, beforehand, we know the parameters such as the speed in a curve, the transverse acceleration produced, etc. This information, in particular the foreseeable longitudinal and transverse accelerations can thus be determined with a radio link, for example Bluetooth of the electronic installation of the vehicle 100. In the exemplary embodiment presented here, this information is transmitted by the planning signal of trajectory 135 to device 105. This information is used to determine motion signal 145 with the objective of minimizing the effects of motion sickness. The observer of the screen 110 receives virtual information concerning the current position and the inclination of the vehicle 100 with respect to a virtual fixed point (bottom). This is comparable to an occupant of the vehicle looking out the window, who will see the relative offset of vehicle 100 (eg, window frame) from the horizon. Compared with the sensors that equip, for example, a mobile, the use of the trajectory planning signal 135 is advantageous because it already contains all the characteristic information. Thus, delays are avoided, which is an advantage for the anti-motion sickness effect of the solution presented here.

The display signal 140 recorded using the recording facility 125 includes, according to an exemplary embodiment, a map parameter. The plane parameter represents a number of sliding display planes of the application presented on the screen 110. The display planes are, for example, planes intermediate between the image content 115 displayed in the foreground. 150 image content background and background displayed at the back. The determining facility 130 is performed in this case to determine the image motion signal 145 using the plane parameter to move at least one display plane presented between the background of the image content 150, with respect to the displayed image content 115 of at least one application presented on the screen. If the application presented on the screen 110 allows displacements / offsets in several planes, for example, in the foreground, in intermediate planes and in the background or background, when determining the signal of image movement 145, it is also possible to determine the movement signals of the other planes.

According to the exemplary embodiment presented, the determination installation 130 is designed to supply the image movement signal 145 to an interface 155 with the screen 110, to control the movement of the background of image content 150 shown as background of the displayed image 115, at least of the application presented on the image screen 110.

The is a schematic representation of a vehicle comprising a device 100 for preventing motion sickness during the observation of an image content 115 presented on an image screen 110 in the case of a vehicle 100 in circulation. In particular, according to this example, the vehicle 100 runs in very automatic mode. The vehicle 100 as well as the device 105 presented are similar or correspond to what has been described above using the .

According to the exemplary embodiment presented, the recording installation 125 is designed to record a user signal 205. The user signal is, for example, supplied via the user interface 210 to recording facility 125. The user interface may be installed as part of a vehicle device 100 or as part of a mobile device which can transmit signals to device 105 or in addition or alternatively, with the vehicle 100 or by being connected to it, for example, a mobile. User signal 205 represents a user specific offset intensity, eg, a user specific frequency for travel. The determination facility 130 is in this case designed to determine the image motion signal 145 using the user signal 205. This advantageously allows the presented means for avoiding motion sickness to be adapted to the individual requirements of the patient. user, for example, by changing the intensity or frequency of displacement of the image content background 150 that represents the background, relative to the displayed image content 115 of at least one application presented on the screen 110.

In addition, the recording installation 125 according to the exemplary embodiment presented is designed to record a seat position or sitting position signal 215. The seat position signal 215 represents the orientation of the position or sitting position. of the viewer of the screen 110 with respect to the direction of travel of the vehicle 100. The determining facility 130 is adapted to determine the image movement signal 145 using the seating position signal 215. The seat position signal 215 is, for example, provided by a mobile device 220. The mobile device 220 is, for example, a mobile equipped with a sensor installation for determining the position of the user of the mobile, for example example, a gyro sensor. Advantageously, this makes it possible to vary the displacement of the image content background 150 representing the background relative to the displayed image content 115 depending on the sitting position. As for a user, for example, for a sitting position oriented in the direction opposite to the direction of movement, the risk of motion sickness is greater, it is possible to determine the image motion signal 145 by using the signal of motion. user 205 and the sitting position signal 215 to correspondingly adjust the offset or displacement of the image content background 150.

The recording installation 125 according to this exemplary embodiment is also designed to record an orientation signal 225. The orientation signal 225 represents the orientation of the image format as portrait or marine format of the image content 115. displayed on the screen 110. In this case, the determining facility 130 determines the image motion signal 145 in addition to the use of the orientation signal 225. The orientation signal 225 optionally includes, in addition to the use of the orientation signal 225. The orientation signal 225 optionally includes furthermore, information concerning the position of the screen 110 when the screen 110 forms part of the mobile device 220 such as, for example, whether the screen 110 is oriented in a horizontal or vertical position. Orientation signal 225 is provided, for example, by interface 155 of screen 110 to device 105. Alternatively, orientation signal 225 may be provided, for example, by mobile device (or more simply the mobile) 220, in particular by using a sensor installation equipped with position sensors, for example, a gyroscopic sensor installation.

The is a schematic representation of a vehicle 100 equipped with a device 105 for preventing motion sickness during the observation of an image content 115 displayed on a screen 110 in a vehicle 100 in motion, in particular a vehicle 100 traveling in highly automated mode, corresponding to an exemplary embodiment. The vehicle 100 as well as the device 105 presented are similar or correspond to the embodiments described above using the or the .

The device 105 according to the exemplary embodiment presented here is part of the mobile device 220, for example, a mobile or a tablet. Screen 110 is the display of mobile device 220; alternatively, the screen 110 is fixedly integrated with the vehicle 100 as a fixed display. The screen 110 can also be realized as a display element of an augmented reality (AR) or virtual reality (VR) display device, for example, a micro-disc player of a VR glasses. The screen 110 is designed so that together with the image motion signal 145 it displays the image content 115 and displays or applies the offset of the background of image content 150 representing the background relative to the image content. displayed 115 of the application displayed or applied, in particular on the screen 110.

The vehicle 100 here comprises in addition to the mobile device 220 and the device 105, for example, a trajectory planning control unit 120. This unit supplies the trajectory planning signal 135 to the device 105. The planning control unit of trajectory 120 of the highly automated vehicle 100; based on the information from the vehicle's sensors and the available map material, an advantageous route is calculated. It includes acceleration, braking and change of direction maneuvers. Using the path planning signal 135, to determine the image motion signal 145, parameters relating to motion sickness, including the predictable transverse and longitudinal acceleration as a function of time, are calculated.

The vehicle 100 optionally includes a communication module for transmitting a signal to the trajectory planning control unit 120 and to the device 105 connected or which can be connected. The communication module transmits all the information concerning motion sickness, for example, the planned trajectory signal 135 to the terminal connected to the vehicle 100, for example to the device 105 or to the screen, for example, by a radio link or a transmission by cable. Device 105 optionally includes a receiving unit. The receiving unit is designed to permanently maintain the link with the vehicle 100 and to receive information regarding motion sickness associated with the vehicle 100. The device 105 according to an exemplary embodiment has a control unit with base bottom movement effect. . This device 105 determination installation optionally includes the bottom movement effect control unit. The Bottom Motion Effect Control Unit is designed to calculate for all applications currently presented, the optimum direction of travel and its intensity, between bottom and front. The displacement is calculated from the predictable transverse acceleration and longitudinal acceleration; optionally, other factors are used, for example specific user requirements or screen position. Besides calculating the intensity and direction of the background movement effect, i.e. the displacement of the background 150 corresponding to the displayed image content 115, this ensures at least on the screen 110, synchronization of information.

The flowchart presented to the , of the method 400 for preventing motion sickness during the observation of an image content displayed on a screen in a moving vehicle, in particular in a vehicle traveling in highly automated mode corresponds to an exemplary embodiment. The method 400 comprises a recording step 405 and a determination step 410. In the recording step 405, a path planning signal and a display signal are recorded. The path planning signal represents the planned path of the vehicle. The display signal represents at least one application presented on the screen. In determining step 410, the path planning signal and the display signal are used to display the image motion signal for shifting the background of the image content representing the background or background of the image. image content to be displayed relative to the image content displayed by the application presented on the screen. The displacement of the background of the represented image content relative to that image content is done to prevent motion sickness upon viewing image content on the screen in a moving vehicle.

According to an exemplary embodiment, the method 400 further comprises a supply step 415. In step 415, the image movement signal is supplied to the interface with the screen to control the displacement / shift of the background corresponding to the background of the image represented with respect to the image content displayed by minus one application displayed on the screen. The screen is, in these conditions, part of the vehicle or portable device.

The method 400 is applied using an exemplary embodiment of the device described herein which is additionally or alternatively ordered.

Claims (11)

Method (400) for preventing motion sickness during the observation of image content (115) displayed on a screen (110) in a moving vehicle (100), in particular in a moving vehicle (100) very automated,
method (400) consisting of:
- recording (405) a trajectory planning signal (135) representing the planned trajectory of the vehicle (100) and a display signal (140) representing at least one application presented on the screen (110), and
- determining (410) an image movement signal (145) for shifting the background image content (150) representing the background of the displayed image content (115) of at least one application displayed on the screen (110) using the path planning signal (135) and the display signal (140) to prevent motion sickness upon viewing the image content (115) displayed on the screen (110) in the vehicle in motion (100). A method (400) according to claim 1,
according to which
in the step (410) of determining, by using the trajectory planning signal (135) a kinetosis parameter is determined, representing a physical quantity relating to motion sickness on the planned trajectory, the image movement signal (145) being further determined further using the kinetosis parameter thus determined. Method (400) according to one of the preceding claims,
according to which
in the step (410) of determining the image movement signal (145), a direction of movement and / or a path of movement of the background image content (150) is determined. Method (400) according to one of the preceding claims,
according to which
the recording step (405) comprises the recorded display signal (140) with a plane parameter which represents the number of sliding display planes, of at least one application displayed on the screen (110),
in the step (410) of determining the image motion signal (145), using the plane parameter, it is determined whether at least one display plane shown between the background image content (150) and the image content (115) is offset from the displayed image content (115) of the application displayed on the screen (110). Method (400) according to one of the preceding claims,
according to which
in the recording step (405), a user signal (205) representing the degree of shift specific to the user is additionally recorded, the image movement signal (145) being determined in the step (410) further determination using the user signal (205). Method (400) according to one of the preceding claims,
according to which
in the recording step (405), a seat position signal (215) is additionally recorded,
the seat position signal (215) representing the orientation of the seat position of an observer of the screen (110) relative to the direction of travel of the vehicle (100),
the image movement signal (145) in the determining step (410) being further determined using the seat position signal (215). Method (400) according to one of the preceding claims,
according to which
in the recording step (405), an orientation signal (225) is additionally recorded, the orientation signal (225) representing the orientation of the picture format as portrait or landscape format of the content of the video. image (115) displayed on the screen (110), the image movement signal (145) of step (410) determining the additional content using the orientation signal (225). Method (400) according to one of the preceding claims,
according to which
in the step (415) of supplying the image motion signal (145) to an interface (155) of the image screen (110) to represent the sliding of the background image content (115) shown as background (150) of the displayed image content (115), relative to the displayed image content (115), at least one application displayed on the screen (110) forming part of the vehicle (100) or of portable equipment (220). Device (105) designed to perform the process steps (400) according to any one of the preceding claims, and / or to control it in corresponding units (125, 130). A computer program designed to perform the process steps (400) according to one of the preceding claims and / or to control the steps. A machine readable memory medium containing the computer program of claim 10.