EP3899779A1 - Procédé d'obtention d'une image d'un objet à classifier et système associé - Google Patents
Procédé d'obtention d'une image d'un objet à classifier et système associéInfo
- Publication number
- EP3899779A1 EP3899779A1 EP19805669.9A EP19805669A EP3899779A1 EP 3899779 A1 EP3899779 A1 EP 3899779A1 EP 19805669 A EP19805669 A EP 19805669A EP 3899779 A1 EP3899779 A1 EP 3899779A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- classified
- vehicle
- image
- light
- computer
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
- B60Q1/14—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
- B60Q1/1415—Dimming circuits
- B60Q1/1423—Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic
- B60Q1/143—Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic combined with another condition, e.g. using vehicle recognition from camera images or activation of wipers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
- B60Q1/06—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle
- B60Q1/08—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically
- B60Q1/085—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically due to special conditions, e.g. adverse weather, type of road, badly illuminated road signs or potential dangers
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F18/00—Pattern recognition
- G06F18/20—Analysing
- G06F18/24—Classification techniques
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/50—Context or environment of the image
- G06V20/56—Context or environment of the image exterior to a vehicle by using sensors mounted on the vehicle
- G06V20/58—Recognition of moving objects or obstacles, e.g. vehicles or pedestrians; Recognition of traffic objects, e.g. traffic signs, traffic lights or roads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
- B60Q2300/40—Indexing codes relating to other road users or special conditions
- B60Q2300/45—Special conditions, e.g. pedestrians, road signs or potential dangers
Definitions
- the invention relates to a method for obtaining an image of an object to be classified.
- the invention also relates to a system for obtaining an image of an object to be classified and to a vehicle comprising such a system.
- the invention also relates to a computer program product and a data storage medium comprising such a program.
- Vehicles equipped with a driving assistance system generally include a detection system such as a radar or a lidar and a camera oriented towards the front of the vehicle so as to detect the presence of obstacles in the path of the vehicle.
- the assistance system also includes a classification system capable of classifying the objects that are in
- the classification system makes it possible, for example, to distinguish objects such as pedestrians, vehicles, advertising signs, sidewalks. This classification allows the vehicle to determine if it can continue on its initial trajectory or if it must make a change of trajectory in order to avoid an object, a braking or deceleration maneuver.
- the image produced by the camera is reduced, which leads to a reduction in the performance of the classification system.
- the classification system is therefore not sufficiently reliable, which can lead to a poor action of the assistance system on the vehicle. This therefore presents a danger to vehicle users or to other road users.
- the invention aims to provide a method for obtaining an image of an object to be classified and a system for obtaining an image of an object to be classified allowing remedy the above drawbacks.
- the invention makes it possible to form an image of an object to be classified of a quality sufficient for the classification of this object.
- the invention relates to a process for obtaining a
- the classification step aims to activate or not an action of a module
- the at least one parameter determined at the detection step is taken from
- the method further comprises, in the event of failure to classify the object detected from the image taken, the following successive steps:
- the increase in the light intensity of the light areas forming said region extends over a period of less than 0.6 s, preferably less than 0.2 s.
- the object classification step is carried out from the at least one image taken or from the at least one second image taken and from at least one parameter determined by the object detection step.
- the method comprises, successively in the classification step, a step of action of said vehicle according to the classification of the object detected.
- the vehicle action step comprises a
- the invention relates to a system for obtaining an image of an object to be classified for a vehicle comprising hardware and / or software elements implementing the method according to one of the preceding claims , in particular hardware and / or software elements designed to implement the method according to one of the preceding claims.
- the material elements include all or part of the following elements:
- a detection device configured to emit electromagnetic waves and to acquire a reflection of the emitted electromagnetic waves
- a lighting device capable of forming a plurality of selectively activable light zones forming at least in part a light beam for lighting and / or signaling
- the invention relates to a motor vehicle, equipped with a driving assistance system, comprising a system for obtaining an image of an object to be classified according to the invention.
- the invention relates to a program product
- the invention relates to a data storage medium, readable by a computer, on which a computer program is recorded comprising code instructions for implementing the method according to the invention or a computer-readable recording medium comprising instructions which, when executed by a computer, lead the latter to implement the method according to the invention.
- FIG. 20 [20] - [ Figure 1] shows a diagram of a vehicle comprising a system for obtaining an image of an object to be classified according to one embodiment
- FIG. 1 represents a flowchart according to an embodiment of a process for obtaining an image of an object to be classified for a vehicle according to the invention
- Vehicle 200 is equipped with a driver assistance system
- classify is meant a method aimed at assigning a class or category to an object, in particular by identifying the object from an image, in order to make a decision depending on the category assigned to this object.
- object in particular a decision likely to trigger an action of the vehicle such as a change of trajectory or a modification of its speed.
- classify includes elements 101, 102, 103, 104, 105, 106, 107 hardware and / or software implementing or governing a process for obtaining an image of an object to be classified.
- the system 100 for vehicle 200 for obtaining an image of an object to be classified comprises the hardware and / or software elements making it possible to implement the steps of the method according to an embodiment of the invention. These different elements can include software modules.
- hardware and / or software may include all or part of the following:
- a device 101 for detecting an object configured to emit electromagnetic waves and to acquire a reflection of the electromagnetic waves emitted;
- a lighting device 1 10 able to form a plurality of light zones which can be activated selectively at least in part forming a light beam for lighting and / or signaling;
- an image taking device 106 such as a camera
- the detection device 101 comprises a wave emitter
- the detection device 101 can for example be a radar or a lidar.
- Electromagnetic waves (radio for radar, optics for lidar)
- the emitted by the radar or lidar transmitter are reflected by the objects they meet.
- the reflected waves are picked up and analyzed by the receiver 103.
- the receiver 103 is placed in the same place or close to the transmitter.
- the distance between the object and the radar or lidar is obtained by measuring the time of flight of the wave signal.
- optical electromagnetic wave is meant an electromagnetic wave having a wavelength between 10 nm and 1 mm.
- the detection device 101 makes it possible, by means of the analysis of the received waves, to detect the presence of an object using the determination of at least one parameter such as the position of the object. It can also determine, alternatively or cumulatively, the perceived area of the object to be classified, the speed of the object to be classified, the distance between the vehicle and the object to be classified.
- the "perceived surface” can be the surface of a rectangle allowing
- the detection device 101 may include a control unit
- electronics 102 for processing the signal received by the receiver 103 of the detection device 101.
- the control unit 102 is capable of defining a region in which the detected object is located.
- detection device 101 may include instructions for a pre-classification of the object, in particular according to its perceived surface and its speed.
- the lighting device 1 10 can for example form at least in part a low beam, a high beam, a daytime running beam (also called DRL for the abbreviation of the English acronym Daytime Running Light ), or a driving assistance beam (or ABD for the acronym "Adaptive Driving Beam”).
- the lighting device 101 is included in a headlight of the vehicle 200.
- Each light zone can be activated independently of the other light zones.
- the light intensity of each activatable light zone can thus be modulated independently of the light intensity of the other activatable light zones.
- the lighting device 1 10 allows lighting only an object to be classified and also makes it possible to illuminate distinct and disjoint regions.
- the lighting device 1 10 comprises one or a plurality of light sources distributed along one or more lines and / or according to one or more columns, each associated with an optical system and which participate together in the formation of the plurality of selectively activatable light zones forming at least in part the lighting and / or signaling light beam. By controlling the switching on or off of the light sources, it is possible to control the selective activation of the plurality of light zones.
- the lighting device 1 10 comprises a
- Each micro-mirror is movable along at least one axis and can be oriented in two positions. A first position in which the light sent by the light source is reflected to participate in the formation of the lighting and / or signaling light beam and a second position in which the light sent by the light source is reflected so as to do not participate in the formation of the light beam and / or
- the lighting device 1 10 comprises a
- the laser source emitting a light beam, a micro-mirror on which the light beam emitted by the laser source is reflected, a light converter receiving the reflected light beam and an optical system imaging the surface of the light converter.
- the system 100 comprises a control module 104 connected to the lighting device 110.
- the control module 104 makes it possible to control the selective activation of the plurality of light zones by controlling, for example, the light intensity of the bright areas.
- each of the headlights of the vehicle 200 comprises a lighting device 110 as described above.
- the step of triggering an increase in the light intensity can then comprise an illumination of the region comprising the object to be classified by a first lighting device then by a second lighting device and / or by the two devices lighting.
- a differentiated treatment of the information produced by using one or the other of the lighting devices by the camera can also make it possible to improve or enrich the classification, by reducing the impact of the shadows cast by the objects present in the images.
- the image taking device 106 can be arranged to take images of a road scene located at the front of the vehicle 200 so as to see any obstacles in the path of the vehicle 200.
- the taking device of images 106 is preferably arranged to take images of a portion of road illuminated by the light beam of the lighting device 1 10 as described above.
- the image pickup device 106 comprises a front camera of the vehicle 200.
- the image pickup device 106 can also include a 360 ° camera making it possible to take pictures all around the vehicle 200.
- the electronic control module 105 comprises an electronic control module 105 comprising a computer 108 and a memory 109.
- the electronic control module 105 is connected to the image pickup device 106.
- the electronic control module 105 comprises code instructions and / or a neural network making it possible to classify the objects visible on the images provided by the image taking device 106.
- the computer 108 and / or the memory 109 may include a
- classifier capable of classifying an object from an image taken by the image pickup device 106.
- the classification includes at least the classification of the object between two categories.
- a first category of objects that may represent a danger to the vehicle, for example, another vehicle, a human, an animal, a cyclist.
- a second category includes objects that cannot normally represent a danger to the vehicle if the latter remains on its way, for example a tree, a trash can, a container, a lamppost, a road sign.
- the system 100 comprises an action module 107 connected to the electronic control module 105.
- the action module 107 may comprise an automatic braking device and / or a trajectory change device, and / or a vehicle user warning device.
- the action module 107 can be activated and / or controlled by the electronic control module 105. If the action module 107 is not activated, the vehicle continues to follow its initial trajectory and / or its speed. initial.
- the various elements 101, 1 10, 104, 106, 105, 107 of the system can be connected to each other by means of information transmission such as CAN data buses (for Controller Area Network or network in French).
- CAN data buses for Controller Area Network or network in French.
- the invention also relates to a vehicle 200 comprising such a system 100 for obtaining an image to be classified.
- the method can also consist of a method for classifying an object near a path on which a vehicle is traveling or in a process for the autonomous reaction of a vehicle. This mode of execution is described in the case of a period of reduced visibility or at night.
- the method 1 implements the use of a system 100 for obtaining an image to be classified or of a vehicle 200 as described above.
- the information obtained on the object by the detection device 101 can be used for its classification.
- a vehicle 200 in particular the device
- lighting said vehicle 200 emits before him a light beam forming at least partially a light beam and / or signaling.
- Said light beam comprises a plurality of light zones which can be activated selectively.
- the first step 10 is preceded by a step of taking an image of an object to be classified and / or taking an image comprising the scene of the road comprising the object to be classified and comprises a failure to classify said object on the image taken.
- the failure is preferably caused by an insufficient brightness of the object to be classified on the image, not allowing a computer to recognize signatures of the object for its
- Method 1 comprises a second step 20 of detecting an object to be classified.
- the detection step 20 is carried out by the detection device 101.
- the detection of an object comprises at least the determination of a parameter relating to the detected object.
- the parameter can be the position of the object and / or the perceived surface of the object and / or the speed of the object and / or the distance between the vehicle and the object.
- the second step also includes defining a region comprising the object to be classified.
- Said region can be of a predefined shape (square, rectangular,
- Said region can be defined by the detected position of the object relative to the position of the receiver 103 of electromagnetic waves. Said region can be defined angularly with respect to the receiver 103, as a function of the angular position of the signals received by the receiver. [60] Said region may include the entire object to be classified. Said region can be defined so as to include the object as well as a region surrounding the surface of the object over a predetermined distance such as at least 5 cm.
- the method comprises triggering an increase in the light intensity of the light areas illuminating the region defined in the second step 20 in which the object is detected.
- the triggering of an increase in the light intensity is carried out by the lighting device 1 10 of said vehicle 200 emitting before it a plurality of light zones which can be activated selectively at least in part forming the light beam of light and / or signaling during the first step 10.
- the "increase" includes an activation of a previously extinct light zone when an object is detected at a position outside the light beam then emitted by the light module. For example, when the light beam is part of a low beam light beam, the object detected may be outside the area illuminated by the light beam. It is then possible to activate certain light zones participating in the high beam light beam.
- the increase in the light intensity of the light areas in the region comprising the object to be classified detected may be carried out in a non-homogeneous manner. For example, it can be done so as to project a light pattern on the object to be classified.
- the light received by the object can be a gradient.
- the projection of non-homogeneous light onto the region comprising the object advantageously makes it possible to provide information on the relief of the object to be classified.
- the increase in light intensity can be achieved by a first light module located in a first projector and by a second light module located in a second projector.
- the increase in the light intensity of the light areas comprising the region in which the object is detected may extend over a period of less than 0.6 s, preferably less than approximately 0.2 s so as not to dazzle the object if it is a person, for example, a pedestrian or a cyclist.
- a fourth step 40 at least one image of said object or of said region is taken simultaneously with the third step 30.
- the captured image thus includes an image of the object or region
- a fifth step 50 the image taken of the region or of the object is supplied to a classifier.
- the classifier performs or attempts to classify the object using an image on which the object is more visible.
- the classifier receives the information on the object to determine whether the object has been used.
- the method may include a sixth step 60 comprising an action of the vehicle in response to this classification.
- a potential obstacle is understood to mean any mobile or stationary object which must cause a modification of the driving instructions of the vehicle such as a change of trajectory, a change of speed.
- a potential obstacle can include any object (other vehicle, cyclist, pedestrian, animal or other) that may present a risk of collision with vehicle 200.
- the method may include, activating an action of an action module 107 of said vehicle 200.
- Vehicle action may include braking.
- the vehicle action may include a change in the trajectory of the vehicle or may include warning the user of a risk of collision.
- the warning can be a visual, audible, or tactile warning (for example, a seat or steering wheel vibration).
- the method may include activating an instruction to maintain the initial trajectory of the vehicle 200.
- the method may include additional steps including triggering a second
- Said second increase in light intensity is greater than the first increase in light intensity in the third step 30.
- the first increase in light intensity may be such that it is not dazzling for a person, and the second increase in light intensity may be dazzling for a person.
- the second increase may be greater in terms of duration
- the second increase may include an increase in the number of over-intensified light areas so as to over-intensify the lighting over a wider region around the object to be classified.
- increase includes an increase in the intensity of the light sources greater than that of the first increase in the third step 30.
- the triggering of the second increase may come from a different lighting device than that used in the third step 30.
- the lighting device used during the third step 30 may be included in a first headlamp of vehicle 200 and the lighting device used for the
- triggering of the second increase can be included in the second projector of vehicle 200.
- the method then comprises a second taking 52 of an image of the object simultaneously with the triggering step 51 of a second increase in the light intensity greater than the first increase in the light intensity of the light zones .
- the image taken during the second image capture can then be used for a new attempt 53 of classification of the object similar to the fifth step described above.
- the memory 109 is a non-transient memory.
- the memory 109 comprises a support
- Memory 109 may include a computer readable recording medium
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Multimedia (AREA)
- Data Mining & Analysis (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Evolutionary Computation (AREA)
- Evolutionary Biology (AREA)
- General Engineering & Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Bioinformatics & Computational Biology (AREA)
- Artificial Intelligence (AREA)
- Life Sciences & Earth Sciences (AREA)
- Traffic Control Systems (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1873181A FR3090160A1 (fr) | 2018-12-18 | 2018-12-18 | Procédé d’obtention d’une image d’un objet à classifier et système associé |
| PCT/EP2019/081844 WO2020126264A1 (fr) | 2018-12-18 | 2019-11-19 | Procédé d'obtention d'une image d'un objet à classifier et système associé |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3899779A1 true EP3899779A1 (fr) | 2021-10-27 |
Family
ID=66542398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19805669.9A Pending EP3899779A1 (fr) | 2018-12-18 | 2019-11-19 | Procédé d'obtention d'une image d'un objet à classifier et système associé |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US11465552B2 (fr) |
| EP (1) | EP3899779A1 (fr) |
| CN (1) | CN113228038A (fr) |
| FR (1) | FR3090160A1 (fr) |
| WO (1) | WO2020126264A1 (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL276002A (en) | 2020-07-12 | 2022-02-01 | Essence Security International Esi Ltd | Object detection in the environment |
| IL282448A (en) * | 2021-04-19 | 2022-11-01 | Essence Security International Esi Ltd | Object detection in the environment |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6281806B1 (en) * | 2000-10-12 | 2001-08-28 | Ford Global Technologies, Inc. | Driver road hazard warning and illumination system |
| CN102592475A (zh) * | 2011-01-14 | 2012-07-18 | 由田新技股份有限公司 | 路口交通预警系统 |
| DE102012015939A1 (de) * | 2012-08-10 | 2014-02-13 | Audi Ag | Kraftfahrzeug mit Fahrerassistenzsystem und Verfahren zum Betrieb eines Fahrerassistenzsystems |
| CN103810475B (zh) * | 2014-02-19 | 2017-04-05 | 百度在线网络技术(北京)有限公司 | 一种目标物识别方法及装置 |
| CN104574960B (zh) * | 2014-12-25 | 2016-08-24 | 宁波中国科学院信息技术应用研究院 | 一种交通灯识别方法 |
| US20160318437A1 (en) * | 2015-05-02 | 2016-11-03 | Nxp B.V. | Adaptive lighting apparatus |
| US10331956B2 (en) | 2015-09-23 | 2019-06-25 | Magna Electronics Inc. | Vehicle vision system with detection enhancement using light control |
| US9789808B1 (en) * | 2016-07-01 | 2017-10-17 | Toyota Motor Engineering & Manufacturing North America, Inc. | Headlight directional control for illuminating an identified object |
| KR102221153B1 (ko) * | 2017-06-08 | 2021-02-26 | 현대모비스 주식회사 | 차량용 헤드램프 시스템 및 이의 제어 방법 |
| US11613201B2 (en) * | 2019-08-12 | 2023-03-28 | Nvidia Corporation | Automatic high beam control for autonomous machine applications |
-
2018
- 2018-12-18 FR FR1873181A patent/FR3090160A1/fr not_active Ceased
-
2019
- 2019-11-19 CN CN201980084753.6A patent/CN113228038A/zh active Pending
- 2019-11-19 US US17/311,564 patent/US11465552B2/en active Active
- 2019-11-19 WO PCT/EP2019/081844 patent/WO2020126264A1/fr not_active Ceased
- 2019-11-19 EP EP19805669.9A patent/EP3899779A1/fr active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR3090160A1 (fr) | 2020-06-19 |
| CN113228038A (zh) | 2021-08-06 |
| WO2020126264A1 (fr) | 2020-06-25 |
| US20220024372A1 (en) | 2022-01-27 |
| US11465552B2 (en) | 2022-10-11 |
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