EP3568802A1 - Procede de pilotage d'un afficheur de vehicule automobile, et afficheur correspondant - Google Patents
Procede de pilotage d'un afficheur de vehicule automobile, et afficheur correspondantInfo
- Publication number
- EP3568802A1 EP3568802A1 EP18700198.7A EP18700198A EP3568802A1 EP 3568802 A1 EP3568802 A1 EP 3568802A1 EP 18700198 A EP18700198 A EP 18700198A EP 3568802 A1 EP3568802 A1 EP 3568802A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- importance
- motor vehicle
- visibility
- display
- level
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
Definitions
- the present invention relates generally to driving aids for motor vehicles.
- It relates more particularly to a method of driving a visible display by the driver of a motor vehicle, typically a head-up display or a display screen.
- a head-up display adapted to project information at the height of the driver's gaze.
- the present invention proposes a new method of controlling a display (screen display or head-up display), comprising steps:
- the level of importance of each object is determined according to at least the form of said object, said form being obtained on the basis of said acquired data;
- each object is a road infrastructure or not, and a significance level above the significance threshold is assigned to each object that is considered a road infrastructure and which is located at a distance from the motor vehicle less than a distance threshold;
- said datum is an image acquired by an image sensor oriented towards the front of the motor vehicle;
- the level of importance of each object is determined according to at least the position of said object on several successively acquired images
- the trajectory of each object is determined according to the position of said object on several successively acquired images and a level of importance greater than the importance threshold is assigned to each object which is mobile and whose trajectory intersects that of the motor vehicle;
- each object highlighted is illuminated on at least part of its outline
- the color and / or the luminous intensity of the illumination is determined according to the visibility coefficient and / or the level of importance;
- each object is detected according to at least data contained in the acquired image
- the detection step it is intended to acquire data relating to the environment of the motor vehicle by means of a second sensor which equips the motor vehicle and which is distinct from the sensor which acquires each datum, and each object is detected based at least on data acquired by said second sensor; and
- the coefficient of visibility of each object is determined according to the contrast of said object with respect to the at least part of the image situated around said object.
- the invention also proposes a display comprising image generation means and a unit for calculating and controlling said image generation means which is adapted to implement a control method as mentioned above.
- FIG. 1 is a schematic perspective view of a motor vehicle driving on a road
- FIG. 2 is a schematic representation of an image acquired by an image sensor fitted to the motor vehicle of FIG. 1;
- FIG. 3 is a schematic representation of an image displayed by a head-up display equipping the motor vehicle of Figure 1.
- a motor vehicle 10 which is here in the form of a four-wheeled car 1 1. Alternatively, it could be a motor vehicle with three wheels, or more wheels.
- this motor vehicle 10 comprises a frame which supports in particular a power train 13, body elements and cabin elements.
- the motor vehicle 10 also comprises one or more electronic control unit (s) (or ECU, the English "Electronic Control Unit”). We will consider here, for the simplicity of the presentation, that it has only one, called calculator 12.
- s electronice control unit
- This calculator 12 comprises a processor and a storage unit, for example a rewritable non-volatile memory or a hard disk.
- the storage unit notably records computer programs comprising instructions whose execution by the processor enables the computer to implement the method described below.
- the computer 12 is connected to different equipment of the motor vehicle 10.
- the motor vehicle 10 comprises at least one image sensor 17 and a display 1 6. It further comprises here a distance detector, for example of the LIDAR, RADAR or SONAR type. It will be considered here that it is a RADAR detector 18.
- the image sensor is here formed by a camera 17 which is oriented towards the front, so that it can acquire images of a portion of the road at the front of the vehicle.
- This camera 17 is here shown as being fixed in the front bumper of the vehicle. Alternatively, it could be located otherwise, for example at the rear of the windshield of the vehicle.
- This camera 17 is adapted to acquire images of a portion of the road at the front of the vehicle and to communicate these images (or data from these images) to the computer 12 of the vehicle.
- the radar detector 18 is also oriented toward the front of the vehicle and is adapted to communicate the detected data to the computer 12.
- the computer 12 is able to apprehend the environment located at the front of the vehicle.
- the display 1 6 could be in the form of a screen display located on the dashboard of the vehicle.
- a head-up display 1 6 adapted to display information in the driver's field of vision when the latter looks at the road at the front of the vehicle.
- This head-up display 1 6 comprises for this purpose means for generating and projecting images in the field of view of the driver.
- it comprises in particular a partially reflective blade (commonly called “combiner") located in the field of view of the driver.
- the windshield can act as a combiner.
- This head-up display 1 6 may also include its own computer or it may instead be connected to the computer 12 of the motor vehicle. In the remainder of this talk, we will consider this last solution.
- the head-up display 16 is of a particular kind in that it is adapted to display information superimposed on the environment. Otherwise formulated, as will be explained later in this presentation, he will be able to display information about a part of the environment so that it will be seen by the driver as being at the height of this part.
- the present invention thus relates to a way of controlling this head-high display 1 6 which allows to highlight the objects that are not very visible and are also worthy of interest for driving the vehicle safely.
- This method is more particularly advantageous to implement when the light conditions are reduced (in fog, cloudy or night).
- this method comprises the following five main steps:
- a step of detecting objects 40, 50, 51, 52, 53 located in the environment of the motor vehicle 10 obstacles, road infrastructures, etc.
- the camera 17 acquires at a given frequency images that the computer 12 then memorizes.
- Road infrastructures are here defined as the "objects” intentionally arranged on or along the road and which provide information facilitating the safe driving of the vehicle.
- a panel 50 there is here a panel 50, a discontinuous line 51 on the left side of the road, a central continuous line 52, and terminals 53 located along the road.
- Obstacles are defined here as objects that are likely to be struck by the vehicle.
- the obstacles there is, in addition to the panel 50 and the terminals 53, a pedestrian 40 who walks and is about to cross the road.
- the trajectory, speed and direction of each obstacle can be calculated according to the position of this obstacle on the images successively acquired.
- the computer 12 will seek to detect all objects deemed important to facilitate the driving of the motor vehicle 10 by the driver safely.
- the calculator will specifically seek to detect at least obstacles and road infrastructure.
- This detection step can be implemented solely by analyzing the images successively acquired by the camera 18.
- This data fusion operation consists of combining the data collected on the data images successively acquired with the data recorded by the RADAR detector 18, so as to accurately determine the positions and trajectories of the obstacles 40, 50, 53.
- the third and fourth steps will then consist in determining the importance level Ni and the visibility coefficient Cv of at least part of these objects 40, 50, 51, 52, 53. They may be implemented successively or simultaneously , any one before the other.
- This distance threshold will be variable. It will vary depending in particular on the speed of the motor vehicle 10.
- the computer 12 assigns to this object a level of importance Ni greater than the importance threshold Si.
- the calculator 12 assigns to this object a level of importance Ni greater than the importance threshold Yes.
- the calculator 12 assigns the object considered a level of importance Ni below the threshold of importance Si.
- the computer determines the visibility coefficient Cv of each object 40, 50, 51, 52, 53 located at a distance of the vehicle less than the distance threshold.
- This coefficient of visibility Cv is determined taking into account only the data contained in the last acquired image. It is in particular calculated according to the contrast of said object with respect to the zone of the image 30 situated around this object.
- the computer selects only a portion of the detected objects to make them stand out on the head-up display 16.
- the selected objects are those whose visibility coefficient Cv is below the visibility threshold Sv and whose importance level Ni is greater than the importance threshold Si.
- the visibility threshold Sv will be fixed regardless of the ambient brightness. It will be adjusted according to the threshold of contrast perceptible by the eye (it will preferably be chosen lower than this one).
- FIG. 3 Another of these methods, which will be preferred and which is illustrated in FIG. 3, will consist for the head-up display 1 6 to project an image 31 on which the outlines of the selected objects appear. Be that as it may, the exact outline or overall outline of these objects will be illuminated in such a way that the driver's attention will be drawn to these objects.
- the color and / or the luminous intensity of the illumination may be invariable or may vary according to the visibility coefficient Cv and / or the level of importance Ni and / or the type of object selected. Thus, for example, we can draw the outline of a dangerous obstacle in red and that of a blank infrastructure.
- this sensor may be a three-dimensional scanner (better known as the "Laser Scanner").
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Traffic Control Systems (AREA)
- Instrument Panels (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1750285A FR3061780B1 (fr) | 2017-01-12 | 2017-01-12 | Procede de pilotage d'un afficheur de vehicule automobile, et afficheur correspondant |
| PCT/EP2018/050433 WO2018130511A1 (fr) | 2017-01-12 | 2018-01-09 | Procede de pilotage d'un afficheur de vehicule automobile, et afficheur correspondant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3568802A1 true EP3568802A1 (fr) | 2019-11-20 |
Family
ID=58992965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18700198.7A Withdrawn EP3568802A1 (fr) | 2017-01-12 | 2018-01-09 | Procede de pilotage d'un afficheur de vehicule automobile, et afficheur correspondant |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3568802A1 (fr) |
| FR (1) | FR3061780B1 (fr) |
| WO (1) | WO2018130511A1 (fr) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10253510A1 (de) * | 2002-11-16 | 2004-05-27 | Robert Bosch Gmbh | Vorrichtung und Verfahren zur Verbesserung der Sicht in einem Kraftfahrzeug |
| JP5071743B2 (ja) * | 2010-01-19 | 2012-11-14 | アイシン精機株式会社 | 車両周辺監視装置 |
| FR2979299B1 (fr) * | 2011-08-31 | 2014-09-12 | Peugeot Citroen Automobiles Sa | Dispositif de traitement pour estimer une trajectoire future d'un vehicule, associee a une couleur fonction d'un niveau de risque de collision estime, pour un systeme d'aide a la conduite |
-
2017
- 2017-01-12 FR FR1750285A patent/FR3061780B1/fr active Active
-
2018
- 2018-01-09 WO PCT/EP2018/050433 patent/WO2018130511A1/fr not_active Ceased
- 2018-01-09 EP EP18700198.7A patent/EP3568802A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| FR3061780A1 (fr) | 2018-07-13 |
| FR3061780B1 (fr) | 2022-08-19 |
| WO2018130511A1 (fr) | 2018-07-19 |
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