AU2020103497A4 - An image defogging system to minimize road accidents - Google Patents

An image defogging system to minimize road accidents Download PDF

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Publication number
AU2020103497A4
AU2020103497A4 AU2020103497A AU2020103497A AU2020103497A4 AU 2020103497 A4 AU2020103497 A4 AU 2020103497A4 AU 2020103497 A AU2020103497 A AU 2020103497A AU 2020103497 A AU2020103497 A AU 2020103497A AU 2020103497 A4 AU2020103497 A4 AU 2020103497A4
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image
vehicle
display
controller
distance
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AU2020103497A
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Lalit Mohan Goyal
Mamta Mittal
Santosh Sarraf
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
    • B60R1/20—Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
    • B60R1/22—Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles for viewing an area outside the vehicle, e.g. the exterior of the vehicle
    • 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
    • B60Q1/18—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 being additional front lights
    • B60Q1/20—Fog lights
    • 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
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/2696—Mounting of devices using LEDs
    • 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
    • B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
    • B60Q9/002—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling for parking purposes, e.g. for warning the driver that his vehicle has contacted or is about to contact an obstacle
    • 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
    • B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
    • B60Q9/008—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling for anti-collision purposes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
    • G01C21/34—Route searching; Route guidance
    • G01C21/36—Input/output arrangements for on-board computers
    • G01C21/3626—Details of the output of route guidance instructions
    • G01C21/3647—Guidance involving output of stored or live camera images or video streams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R11/04—Mounting of cameras operative during drive; Arrangement of controls thereof relative to the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R2011/0001—Arrangements for holding or mounting articles, not otherwise provided for characterised by position
    • B60R2011/0003—Arrangements for holding or mounting articles, not otherwise provided for characterised by position inside the vehicle
    • B60R2011/0035—Sun visors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R2300/00—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle
    • B60R2300/20—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the type of display used
    • B60R2300/205—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the type of display used using a head-up display
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R2300/00—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle
    • B60R2300/30—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the type of image processing
    • B60R2300/301—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the type of image processing combining image information with other obstacle sensor information, e.g. using RADAR/LIDAR/SONAR sensors for estimating risk of collision
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R2300/00—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle
    • B60R2300/80—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the intended use of the viewing arrangement
    • B60R2300/8053—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the intended use of the viewing arrangement for bad weather conditions or night vision
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R2300/00—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle
    • B60R2300/80—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the intended use of the viewing arrangement
    • B60R2300/8086—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the intended use of the viewing arrangement for vehicle path indication
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R2300/00—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle
    • B60R2300/80—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the intended use of the viewing arrangement
    • B60R2300/8093—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the intended use of the viewing arrangement for obstacle warning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2300/00—Purposes or special features of road vehicle drive control systems
    • B60Y2300/10—Path keeping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/30—Sensors
    • B60Y2400/301—Sensors for position or displacement
    • B60Y2400/3015—Optical cameras
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2013/9322—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles using additional data, e.g. driver condition, road state or weather data
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2013/9327—Sensor installation details
    • G01S2013/93271—Sensor installation details in the front of the vehicles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2013/9327—Sensor installation details
    • G01S2013/93272—Sensor installation details in the back of the vehicles
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/16—Anti-collision systems
    • G08G1/166—Anti-collision systems for active traffic, e.g. moving vehicles, pedestrians, bikes

Abstract

AN IMAGE DEFOGGING SYSTEM TO MINIMIZE ROAD ACCIDENTS An image defogging system to minimize road accidents is disclosed. Said system comprises, an image acquisition device (103), a controller and display (104), adaptive 5 distance metric sensors (106, 110), an accident locator (112), a GPS module (111), a polarized LED fog light (108), and an Opto-detector system and distance meter (109). The image of the path or the road where the vehicle travels during foggy atmosphere (102) is captured by the image acquisition device (103) and sent to the controller and display (104). The Opto-detector system senses the lights from other vehicles behind the vehicle 10 and estimates the distance of the vehicles while the distance meter (109) detects the distance from the other vehicles or obstacles and the collected data is displayed on the display device along with the enhanced image of the foggy road. 12 Application No: Total No of Sheets: 02 Page 2 of 2 PoLanzedJ LED Ight Adape dsane bsp y6 & Croe Adaphe.v tance senm (ithGPS efce) s Figure 3 Schematic of the placement of the components in the vehicle. Figure 4Schematic of the electronic controller, display unit and collision detector switch

Description

Application No: Total No of Sheets: 02 Page 2 of 2
PoLanzedJ LED Ight
Adape dsane bsp y6 &Croe Adaphe.v tance senm (ithGPS efce) s
Figure 3 Schematic of the placement of the components in the vehicle.
Figure 4Schematic of the electronic controller, display unit and collision detector switch
Editorial Note 2020103497 There are only 10 pages of Description
AN IMAGE DEFOGGING SYSTEM TO MINIMIZE ROAD ACCIDENTS TECHNICAL FIELD
The invention presents relates to an imaging system based Electronic unit for ensuring safe driving, mitigating on-road vehicle mishaps in foggy weather conditions.
DESCRIPTION OF THE INVENTION
In the past few years, fog related road fatalities in India have risen almost 100%. In 2019, as many as 11,090 succumbed to death in fog related road crashes. This figure is whopping 16% of the total road crashes that year. Depending on worldwide research, the enhanced visibility, reduces the crash risk by 30%. At time whereabouts of location and premise of collisions are not known, thereby reaching out timely medical help to an accident site is of great challenge.
At present the strong view to overcome the above challenge can be addressed by making fog light mandatory in front and rear of the vehicles. It has been studied that such an arrangement leads to increased scattering phenomenon leading to hazy effect, which reduces the overall visibility and can obscure the driving which results in loss of life and resources.
This has motivated to develop and implement a low cost robust electronic system which will help in avoiding collision. This being one of the major priority issue to be addressed by the Government concerning, the life and safety of the individuals. The motivation behind this work is to safeguard life, commuting time as well natural resources of the nation and within the reach of all walks of life.
Therefore, the present invention provides an image/video defogging system and method for enhancing the quality of degraded videos and restoring visibility by eliminating suspended particles such as fog, haze, mist and smog from the video, thereby ensuring safe driving, mitigating on-road vehicle mishaps in foggy weather conditions.
Not much work has been targeted in creating a standalone system to cater defogging for on-road vehicles. Some attempts have been made to detect fog using image descriptors, visibility factors, fog density, object detection, computing vanishing point, contrast restoration, warning system and so on, but without consequent practical ability. Most of these work confined to development of algorithms and greater part of the research has been done on simulated fog models.
Evaluation with driver's behaviour combined with safety indicators hinged on trajectory analysis based on visual images and range finder measurements are under way, but at high cost. Training imparted to drivers also plays a vital role driving in fog. Many times drivers switch on Hazard light or parking light when driving. They are only to be used when the car has stopped and not in the motion. Divers also have tendency to use the high beam headlamps. But such headlamps used in high position impair the driver's visibility on account of scattered illumination.
These however are not rational enough as simulation based prototype behaviour is completely different realistic on-road driving. Nevertheless, after studying the shortcomings of driver simulation systems, there is apparently total absence of device for real world acquaintance.
All publications herein are incorporated by reference to the same extent as if each individual publication or patent application were specifically and individually indicated to be incorporated by reference. Where a definition or use of a term in an incorporated reference is inconsistent or contrary to the definition of that term provided herein, the definition of that term provided herein applies and the definition of that term in the reference does not apply.
As used in the description herein and throughout the claims that follow, the meaning of "a, an," and "the" includes plural reference unless the context clearly dictates otherwise. Also, as used in the description herein, the meaning of "in" includes "in" and "on" unless the context clearly dictates otherwise.
All methods described herein can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The use of any and all examples, or exemplary language (e.g. "such as") provided with respect to certain embodiments herein is intended merely to better illuminate the invention and does not pose a limitation on the scope of the invention otherwise claimed. No language in the specification should be construed as indicating any non-claimed element essential to the practice of the invention.
OBJECTS OF THE INVENTION
It is an object of the present invention to provide safe driving thereby, mitigating on-road vehicle mishaps in foggy climate.
It is an object of the present invention to provide safe driving with less circuit complexity and affordable cost.
It is an object of the present invention to provide safe driving with a robust and reliable system that will be simple to use.
It is yet another object of the present invention to identify the site of accident and communicate the same
SUMMARY OF THE INVENTION
Accordingly, the present invention has been made to solve the problems of the prior art, and an object of the present invention is to improve detection accuracy by combining signals sensed from various sensors that can be set inexpensively, It is to provide a crop protection system and method that enables quick response to follow-up actions through various alarms using lighting and monitoring using cameras.
One should appreciate that although the present disclosure has been explained with respect to a defined set of functional modules, any other module or set of modules can be added/deleted/modified/combined and any such changes in architecture/construction of the proposed system are completely within the scope of the present disclosure. Each module can also be fragmented into one or more functional sub-modules, all of which also completely within the scope of the present disclosure.
This invention focuses on a solution for collision avoidance and mitigation system in urban and rural road lines during foggy conditions. The major concern is to enhance the visibility in driving foggy environment. The images depend on the weather conditions and defogging in such cases is a daunting task, this prerequisite for a system with intelligent defogging mechanism together with detection of an obstacle if any.
In a preferred embodiment, an image defogging system to minimize road accidents comprises, an image acquisition device, a controller and display, one or more adaptive distance metric sensors, an accident locator, a GPS module, a polarized LED fog light, and an Opto-detector system and distance meter; characterized in that, the image acquisition device captures the image of the path or the road where the vehicle travels during foggy atmosphere and sends the captured image to the controller and display; the Opto-detector system and distance meter senses the lights from other vehicles behind the vehicle and estimates the distance of the vehicles; wherein, the controller and display obtains the depth map of the acquired image, models the fog as low intensity information, enhances the image by employing adaptive histogram equalization and conveys to the user on the display the enhanced image and the other vehicle distance information
BRIEF DESCRIPTION OF THE DRAWINGS
The accompanying drawings are included to provide a further understanding of the present disclosure, and are incorporated in and constitute a part of this specification. The drawings illustrate exemplary embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.
Fig. 1, in an embodiment of the present invention, is a schematic of an electronic system design for image enhancement in foggy weather conditions without using digital radio unit.
Fig. 2, in an embodiment of the present invention, is a schematic of an electronic system design for image enhancement in foggy weather conditions using digital radio unit.
Fig.3, in an embodiment of the present invention is a schematic of the placement of the components in the vehicle.
Fig. 4, in an embodiment of the present invention is the schematic of the electronic controller, display unit and collision detector switch.
DETAILED DESCRIPTION OF THE INVENTION
In the following description, numerous specific details are set forth in order to provide a thorough understanding of embodiments of the present invention. It will be apparent to one skilled in the art that embodiments of the present invention may be practiced without some of these specific details.
The following is a detailed description of embodiments of the disclosure depicted in the accompanying drawings. The embodiments are in such detail as to clearly communicate the disclosure. However, the amount of detail offered is not intended to limit the anticipated variations of embodiments; on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the present disclosure as defined by the appended claims.
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
There are at least five embodiments to this invention. The image sensing device mounted at the back of the windshield will capture the image in low-light foggy conditions. Primarily this unit will be in charge of image acquisition. Low end easily available robust device is used in this case. The basic inventive step is to provide better visibility for driver by enhancing the clarity.
Referring to Figure 1, the present invention discloses an image defogging system to minimize road accidents comprises, an image acquisition device (103), a controller and display (104), one or more adaptive distance metric sensors (106, 110), an accident locator (112), a GPS module (111), a polarized LED fog light (108), and an Opto-detector system and distance meter (109); characterized in that, the image acquisition device (103) captures the image of the path or the road where the vehicle travels during foggy atmosphere (102) and sends the captured image to the controller and display (104); the Opto-detector system and distance meter (109) senses the lights from other vehicles behind the vehicle and estimates the distance of the vehicles ; wherein, the controller and display (104) obtains the depth map of the acquired image, models the fog as low intensity information, enhances the image by employing adaptive histogram equalization and conveys to the user on the display the enhanced image and the other vehicle distance information;
The signal from this acquisition device will be fed to the controller. This has been incorporated by implementing defogging algorithm in the controller. It is tested on modified least intensity colour channel prior based on wavelet decomposition. The fog is modelled as low intensity information which is enhanced by employing adaptive histogram equalization in LL band (average information). The defogged image is conveyed to the user on monitor. The controller used is a generic purpose having the capability of processing low light fog laden images to produce defogged brighter images with increased contrast. This controller needs to be mounted on back of sun-shield over driver's seat.
The processed output thereafter shall be displayed on a monitor, which is mounted on adjustable sun-shields. The positioning of this display unit is essential as these should not create any kind of hindrances to drivers when the vehicle is in motion.
The basic inventive step is to improve the visibility range of drivers beyond 10 meters. Higher the visibility range better control the drivers get for manoeuvring the vehicle and reaction time against sudden obstacles in the path. This simple embodiment will be provided with a switch to be used only in foggy conditions. Moreover, if equipped with higher memory controller unit, it can be also put to use for video recording.
In a more simplified embodiment it is possible to apply a distance metric sensor. This will function as obstacle detectors with a detection range much greater than visibility range. It will be equipped with three modes. For no obstacle detected it shall give a beep at every 10 seconds. Obstacles near 10 meters shall give beep at every 5 second and for obstacles less than three meters beep will sound at every second to indicate an alarming situation to drivers.
Developing this system insuperable, a similar distance metric sensor shall be installed at the rear end. There shall be two functionalities served here. Like in ordinary vehicles, this will be activated when the vehicle is put in reverse gear, thereby helping the driver with parking at ease. And in dual function mode it will serve also as an indicator of far or near is the vehicle trailing us.
In a more simplified embodiment we have placed a polarized LED device so as to signal the trailing vehicle about our vehicle in foggy conditions. Ordinarily fog lamps in use have short throw and major issue is scattering of light creating nuisance for trialing vehicles. It is possible to apply a light sensor in the rear end of the vehicle. It senses the amount of light of the vehicle following us.
The cost of this designed unit can be further reduced by incorporating android based radio-phone which has the inbuilt units such as image acquisition and enhancing program that can be developed. However, for such system separate highly economical controller can be utilized for range detection and providing alarms.
System Configuration:- Fig 1. depicts an electric vehicle [101], being driven in foggy atmosphere [102], the image acquisition system [103] shall capture the visual signals in run time and feeds it to the controller and display [104]. The voltages will be tapped from the existing battery [105] available in the vehicle. The adaptive distance metric sensor
[106] transmits and receives a signal indicating the depth and beeper [107] gives out the alarm signals accordingly.
The polarized LED light[108]is fixed in the rear end, so that trailing vehicles get an idea of the front vehicle. Opto-detector sensors [109] are mounted on the rear end to gauge the light intensity of approaching vehicle and signal out the appropriate signal to devices. Another set of adaptive distance metric sensor [110] is placed at the rear end which will act as a dual functional unit. It will sense the distance of an approaching vehicle and also can be of use during reverse mode of driving.
The GPS module [111] for location tracking is also affixed onto the body of the vehicle and in case of accidental emergency the whereabouts and location will be transferred via GSM module [112] to the saved contact number. The collision detector switch will be mounted on air-bag console unit.
Fig 2. depicts an electric vehicle [201], being driven in foggy atmosphere [202], the image acquisition system [203] shall capture the visual signals in run time and feeds it to the android based digital radio unit [204]. The voltages will be tapped from [205]. The adaptive distance metric sensor [206] transmits and receives a signal indicating the depth and beeper [207] gives out the alarm signals accordingly.
Fig 3. depicts schematic of placements of components in the vehicle. The polarized LED light [208] is fixed in the rear end, so that trailing vehicles get an idea of front vehicle. Opto-detector sensors [209] are mounted on the rear end to gauge the light intensity of approaching vehicle and signal out the appropriate signal to devices. Another set of adaptive distance metric sensor is placed at the rear end which will act as a dual functional unit. It will sense the distance of approaching vehicle and also can be of use during reverse mode of driving.
Fig 4. depicts schematic of an electronic controller, display unit and collision detector switch. The controller unit with display shall be fitted behind sunshield flap over drivers head. The charging port is of USB type-C, which will be derived from panel console with the help of connector cable. This will not temper the existing wiring of the automobile. The dimension of such controller is 88 x 58 x 19.5mm with display mounted on top of it. The weight of controller is 50 grams. The display unit compatible with such a controller has a dimension of 5 inch display with weight of 100 grams.
Although the present invention has been described in more detail with reference to several embodiments above, the present invention is not necessarily limited to these embodiments, and various modifications may be made without departing from the spirit of the present invention.
While the foregoing describes various embodiments of the invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof. The scope of the invention is determined by the claims that follow. The invention is not limited to the described embodiments, versions or examples, which are included to enable a person having ordinary skill in the art to make and use the invention when combined with information and knowledge available to the person having ordinary skill in the art.

Claims (7)

We Claim,
1. An image defogging system to minimize road accidents comprises, an image acquisition device (103), a controller and display (104), one or more adaptive distance metric sensors (106, 110), an accident locator (112), a GPS module (111), a polarized LED fog light (108), and an Opto-detector system and distance meter (109); characterized in that, the image acquisition device (103) captures the image of the path or the road where the vehicle travels during foggy atmosphere (102) and sends the captured image to the controller and display (104); the Opto-detector system and distance meter (109) senses the lights from other vehicles behind the vehicle and estimates the distance of the vehicles; wherein, the controller and display (104) obtains the depth map of the acquired image, models the fog as low intensity information, enhances the image by employing adaptive histogram equalization and conveys to the user on the display the enhanced image and the other vehicle distance information;
2. The image defogging system to minimize road accidents as claimed in claim 1, wherein, edge-preserving filtering the transformation image of the foggy image by using a simplified guided filter.
3. The image defogging system to minimize road accidents as claimed in claim 1, wherein, variable buzzer frequency elements are provided that are activated based on the distance of oncoming vehicle or obstruction in the path of the vehicle such that, for no obstacles, it gives a beep at every 10 seconds, for obstacles near 10 meters it gives beep in every 5 seconds and for obstacles less than 3 meters, the beep will be every second.
4. The image defogging system to minimize road accidents as claimed in claim 1, wherein the controller and display (104) is placed behind the sun shield.
5. The image defogging system to minimize road accidents as claimed in claim 1, wherein, the system is powered by already existing mobile charger unit or is directly connected to the battery of the vehicle.
6. The image defogging system to minimize road accidents as claimed in claim 1, wherein, the unit is fitted with GPS tracker and incase of collisions it conveys information to a pre-stored number.
7. The image defogging system to minimize road accidents as claimed in claim 1, wherein, the above claimed operations are implemented by android based digital radio unit.
Editorial Note 2020103497 There are only 2 pages of Claim
We Claim,
1. An image defogging system to minimize road accidents comprises, an image acquisition device (103), a controller and display (104), one or more adaptive distance metric sensors (106, 110), an accident locator (112), a GPS module (111), a polarized LED fog light (108), and an Opto-detector system and distance meter (109); characterized in that, the image acquisition device (103) captures the image of the path or the road where the vehicle travels during foggy atmosphere (102) and sends the captured image to the controller and display (104); the Opto-detector system and distance meter (109) senses the lights from other vehicles behind the vehicle and estimates the distance of the vehicles; wherein, the controller and display (104) obtains the depth map of the acquired image, models the fog as low intensity information, enhances the image by employing adaptive histogram equalization and conveys to the user on the display the enhanced image and the other vehicle distance information;
2. The image defogging system to minimize road accidents as claimed in claim 1, wherein, edge-preserving filtering the transformation image of the foggy image by using a simplified guided filter. 3. The image defogging system to minimize road accidents as claimed in claim 1, wherein, variable buzzer frequency elements are provided that are activated based on the distance of oncoming vehicle or obstruction in the path of the vehicle such that, for no obstacles, it gives a beep at every 10 seconds, for obstacles near 10 meters it gives beep in every 5 seconds and for obstacles less than 3 meters, the beep will be every second. 4. The image defogging system to minimize road accidents as claimed in claim 1, wherein the controller and display (104) is placed behind the sun shield. 5. The image defogging system to minimize road accidents as claimed in claim 1, wherein, the system is powered by already existing mobile charger unit or is directly connected to the battery of the vehicle. 6. The image defogging system to minimize road accidents as claimed in claim 1, wherein, the unit is fitted with GPS tracker and incase of collisions it conveys information to a pre stored number. 7. The image defogging system to minimize road accidents as claimed in claim 1, wherein, the above claimed operations are implemented by android based digital radio unit.
Application No: Total No of Sheets: 02 Page 1 of 2 18 Nov 2020 2020103497
Figure 1. Schematic of an electronic system design for image enhancement in foggy weather conditions
Figure 2 schematic of an electronic system design for image enhancement in foggy weather conditions using digital radio unit.
Application No: Total No of Sheets: 02 Page 2 of 2 18 Nov 2020 2020103497
Figure 3 Schematic of the placement of the components in the vehicle.
Figure 4 Schematic of the electronic controller, display unit and collision detector switch
AU2020103497A 2020-11-18 2020-11-18 An image defogging system to minimize road accidents Ceased AU2020103497A4 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113022443A (en) * 2021-03-10 2021-06-25 白田梅荣 Traffic safety reminding device for bus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113022443A (en) * 2021-03-10 2021-06-25 白田梅荣 Traffic safety reminding device for bus

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