CN106915295A - The control method and device of automobile front lamp state - Google Patents
The control method and device of automobile front lamp state Download PDFInfo
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- CN106915295A CN106915295A CN201710170646.8A CN201710170646A CN106915295A CN 106915295 A CN106915295 A CN 106915295A CN 201710170646 A CN201710170646 A CN 201710170646A CN 106915295 A CN106915295 A CN 106915295A
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- 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
Abstract
The invention discloses a kind of control method and device of automobile front lamp state, belong to electronic technology field.Methods described includes：Obtain and detect vehicle front when the highlight regions in the ambient image of former frame with the presence or absence of area more than the first area threshold, when deserve former frame ambient image in exist area more than the first area threshold highlight regions when, obtain vehicle front next frame ambient image；When highlight regions in the ambient image of the next frame area more than deserve former frame ambient image in highlight regions area when, it may be determined that vehicle front have other vehicles be close to, therefore can automatically control vehicle headlight state be dipped headlight state.The headlight state that the control method of the automobile front lamp state that the present invention is provided can automatically control vehicle when vehicle crosses is dipped headlight state.The control method of the automobile front lamp state is manually operated without driver, effectively increases accuracy and promptness during control automobile front lamp state.
Description
Technical field
The present invention relates to electronic technology field, more particularly to a kind of control method and device of automobile front lamp state.
Background technology
Automobile front lamp can include two kinds of illumination conditions of high beam and dipped headlight according to the difference of range of exposures, and driver can
Two kinds of illumination conditions are switched over adjusting switch by distance-light.The light of wherein high beam is more concentrated, brightness compared with
Greatly, the object in the range of farther out can be irradiated to；The light that dipped headlight sends more dissipates, and can only be irradiated to nearby in a big way
Interior object.
In correlation technique, the high beam and dipped headlight two states of automobile front lamp are typically all to pass through distance-light by driver
Regulation switch manual switching, and most of driver habits open high beam in night running, because high beam range
Farther out, driver can be helped preferably to judge surface conditions.But during vehicle and vehicle cross, in order to avoid distance light
The sight line of lamp interfering with an opponent driver, driver needs that the headlight of vehicle is switched into dipped headlight state manually.
But, it is the light status that headlight is rule of thumb controlled by driver in correlation technique when vehicle crosses, should
The accuracy and promptness of control method are relatively low.
The content of the invention
In order to the accuracy and promptness that solve the problems, such as the control method of automobile front lamp state in correlation technique are relatively low, this
Invention provides a kind of control method and device of automobile front lamp state.The technical scheme is as follows：
On the one hand, there is provided a kind of control method of automobile front lamp state, methods described includes：
Vehicle front is obtained when the ambient image of former frame；
The detection highlight regions when in the ambient image of former frame with the presence or absence of area more than the first area threshold, institute
State connected region of the brightness value more than the first luminance threshold that highlight regions are each pixel；
When it is described when exist in the ambient image of former frame area more than the first area threshold highlight regions when, obtain car
The ambient image of next frame in front of；
It is and described next when there are highlight regions of the area more than the first area threshold in the ambient image of the next frame
The area of highlight regions is controlled more than described when the area of highlight regions in the ambient image of former frame in the ambient image of frame
The headlight state of the vehicle is dipped headlight state.
On the other hand, there is provided a kind of control device of automobile front lamp state, described device includes：
First acquisition module, for obtaining vehicle front when the ambient image of former frame；
First detection module, it is described when being more than the first area with the presence or absence of area in the ambient image of former frame for detecting
The highlight regions of threshold value, the highlight regions are the connected region of the brightness value more than the first luminance threshold of each pixel；
Second acquisition module, for there is area in the ambient image for working as former frame described in more than the first area threshold
During highlight regions, the ambient image of vehicle front next frame is obtained；
Control module, for when exist in the ambient image of the next frame area more than the first area threshold highlight bar
The area of highlight regions is more than highlight regions in the ambient image for working as former frame in domain, and the ambient image of the next frame
Area when, control the vehicle headlight state be dipped headlight state.
The beneficial effect brought of technical scheme that the present invention is provided is：
The invention provides a kind of control method and device of automobile front lamp state, the method can detect vehicle front
Highlight regions in ambient image with the presence or absence of area more than the first area threshold, when all there is face in two continuous frames ambient image
Product is more than the highlight regions of the first area threshold, and the area of highlight regions is more than when former frame environment in next frame ambient image
In image during the area of highlight regions, it may be determined that vehicle front has other vehicles being close to, therefore can automatically control vehicle
Headlight state be dipped headlight state.The control method of the automobile front lamp state is manually operated without driver, effectively increases
Accuracy and promptness during control automobile front lamp state.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, below will be to that will make needed for embodiment description
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is a kind of flow chart of the control method of automobile front lamp state provided in an embodiment of the present invention；
Fig. 2 is a kind of signal of gray level image being converted into when the ambient image of former frame provided in an embodiment of the present invention
Figure；
Fig. 3 is a kind of schematic diagram of gray level image that is converted into of ambient image of next frame provided in an embodiment of the present invention；
Fig. 4 is a kind of structural representation of the control device of automobile front lamp state provided in an embodiment of the present invention；
Fig. 5 is the structural representation of the control device of another automobile front lamp state provided in an embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention
Formula is described in further detail.
Fig. 1 is a kind of flow chart of the control method of automobile front lamp state provided in an embodiment of the present invention, with reference to Fig. 1, should
Method can include：
Step 101, acquisition vehicle front are when the ambient image of former frame.
In embodiments of the present invention, processing module and vehicle-mounted camera can be provided with vehicle, the vehicle-mounted camera can
Think the camera in vehicle intelligent rearview mirror, or can also be the camera being separately provided in vehicle.The processing module can
To be integrated in the vehicle intelligent rearview mirror, or the module for controlling light status being independently arranged in vehicle.
Wherein, the vehicle-mounted camera can with the ambient image of Real-time Collection vehicle front, the processing module can in real time or
Person periodically obtains the ambient image of vehicle-mounted camera collection.Example, the processing module can obtain vehicle front and work as
The ambient image of former frame.
Step 102, the ambient image to deserving former frame are pre-processed.
In embodiments of the present invention, in order to improve the efficiency of image procossing, processing module is in the environment map to getting
Before as being detected, the ambient image can also be pre-processed, the pretreatment can specifically include：Remove the environment map
Redundant area as in, and/or, resolution decreasing treatment is carried out to the ambient image.
Wherein, the redundant area can include the pixel of the default line number in the ambient image top, the default line number and environment
The ratio of total line number of pixel is default fixed value in image.Due to potentially including street lamp lamp in the ambient image of vehicle front
Light, if the street lamp light to be mistaken for processing module the light of vehicle, can impact to the control of follow-up light status.
In practical application, the top half of ambient image is normally at due to the light of street lamp, therefore in order to avoid the street lamp light
Interference, can first remove the pixel of the default line number in the ambient image top.Wherein, the top of the ambient image refers to ambient image
In near the part of sky, the bottom of ambient image refers to the part near ground in ambient image.
Wherein, the resolution decreasing treatment can for sampling processing, i.e. processing module can be according to default oversampling ratio pair
Pixel in the ambient image is sampled, to extract the valid pixel in the ambient image.
Example, it is assumed that the default line number is 1/5th, the environment with the ratio of total line number of pixel in ambient image
Total line number of pixel is 1000 in image, then the processing module can be by the region where the row pixel of ambient image top 200
It is defined as redundant area, and removes the redundant area.Further, the processing module can be in the remaining ambient image
Pixel is sampled, such as every one valid pixel of a pixel extraction.Afterwards, the processing module detects that the process is located in advance again
Whether include highlight regions in ambient image after reason.
It should be noted that in actual applications, processing module can also be carried out first at resolution decreasing to the ambient image
Reason, then removes the redundant area in the ambient image again, and the embodiment of the present invention is not limited the execution sequence of two steps
It is fixed.
Step 103, detect the mean flow rate of the pretreated ambient image when former frame whether more than the second brightness
Threshold value.
In embodiments of the present invention, processing module can calculate this it is pretreated when in the ambient image of former frame each
The brightness value of pixel, then total number of pixels of the brightness value further according to each pixel and ambient image, obtains the environment
The mean flow rate of image, and judge the mean flow rate whether more than default second luminance threshold.When the mean flow rate is not more than
During the second luminance threshold, processing module can determine current environment dark images, therefore can continue executing with step 104；When this
When mean flow rate is more than the second luminance threshold, processing module can determine that current environment is brighter, therefore can perform step 108.
Wherein, when the brightness value of each pixel is calculated, the ambient image first can be converted to gray-scale map by processing module
Picture, then calculates the gray value of each pixel in the gray level image again, and the gray value of each pixel can react the pixel
Brightness.
Example, it is assumed that second luminance threshold is：Gray value 100, the processing module is by the pretreated environment map
After as being converted to gray level image, the average gray value of the gray level image being calculated is 80, then because the average gray value is small
In default second luminance threshold, therefore processing module can perform step 104.
Step 104, detect this it is pretreated when in the ambient image of former frame with the presence or absence of area be more than the first area
The highlight regions of threshold value.
Wherein, the highlight regions are that the brightness value of each pixel is all higher than the connected region of default first luminance threshold.When
Deserve former frame ambient image in exist area more than the first area threshold highlight regions when, processing module can perform step
Rapid 105；When not existing highlight regions in the ambient image for deserving former frame, or in the absence of area more than the first area threshold
During highlight regions, processing module can perform step 109.
In embodiments of the present invention, the first area threshold can be previously stored with processing module, first area threshold
Can be weighed by the number of pixel, such as first area threshold can be 100 pixels.Processing module will first can be somebody's turn to do
Pretreated ambient image is converted to gray level image, then travels through each in the gray level image using algorithm of region growing again
Pixel, extracts all connected regions more than default gray threshold, and calculates the area of each connected domain, and then judges again
Highlight regions in the gray level image with the presence or absence of area more than the first area threshold.Wherein, the specific reality of algorithm of region growing
Existing process may be referred to correlation technique, and the embodiment of the present invention is not repeated this.
Example, it is assumed that first luminance threshold is：Gray value 120, the ambient image for deserving former frame is converted into gray scale
After image as shown in Fig. 2 then the processing module can be extracted from the gray level image gray value more than 120 pixel it is (i.e. white
Color pixel 01) connected region that is constituted, and detect the number of pixels of each connected region whether more than 100.Assuming that in Fig. 2 institutes
In the gray level image for showing, each lattice represents 10 pixels, then the processing module exists in can determining the ambient image
Two areas are more than the highlight regions of the first area threshold, and wherein each highlight regions include the white pixels 01 of multiple connections.
It should be noted that in actual applications, the concrete numerical value of first luminance threshold and the second luminance threshold can be with
According to circumstances set, the embodiment of the present invention is not limited the size and concrete numerical value of two luminance thresholds.
Step 105, the ambient image for obtaining vehicle front next frame.Perform step 106.
When processing module detect when exist in the ambient image of former frame area more than the first area threshold highlight bar
During domain, in order to determine whether whether the highlight regions are to be produced by the headlight light of the vehicle that crosses, under can continuing to obtain
The ambient image of one frame.
It should be noted that in embodiments of the present invention, in order to further improve the accuracy of detection, processing module is in inspection
Measure after it there are highlight regions of the area more than the first area threshold in the ambient image of former frame, can also further sentence
Whether area is equal to 1 more than the number of the highlight regions of the first area threshold in the disconnected ambient image for deserving former frame.
If when area is more than 1 (for example more than the number of the highlight regions of the first area threshold in the ambient image of former frame
For that 2), then can determine that two highlight regions are probably that caused by two headlamps of opposite vehicle, therefore can continue
Obtain the ambient image of next frame.If when area is individual more than the highlight regions of the first area threshold in the ambient image of former frame
Number is equal to 1, then in order to avoid erroneous judgement, whether processing module can continue to detect the area of the highlight regions more than second area threshold
Value, the second area threshold value is more than first area threshold.When the area of the highlight regions is more than second area threshold value, then locate
Reason module can determine a highlight regions be probably caused by the bicycle lamp of the vehicles such as motorcycle, or due to turn
Caused by the headlamp of vehicle, then can continue to obtain the ambient image of vehicle front next frame.
Step 106, detect the highlight bar with the presence or absence of area more than the first area threshold in the ambient image of the next frame
Domain.
When exist in the ambient image of the next frame area more than the first area threshold highlight regions when, perform step
107；When the highlight regions of the first area threshold are more than in the absence of area in the ambient image of the next frame, step 109 is performed.
In embodiments of the present invention, with reference to above-mentioned steps 102, the ambient image that processing module can be first to the next frame is entered
Row pretreatment, then referring again to the method shown in above-mentioned steps 104, detects in the ambient image of the next frame with the presence or absence of area
More than the highlight regions of the first area threshold.
Example, it is assumed that the ambient image of the next frame is converted to after gray level image as shown in figure 3, then processing module can be with
Determine there are highlight regions of two areas more than the first area threshold in the ambient image of the next frame, and perform step 107.
Step 107, detect the area of highlight regions in the ambient image of the next frame whether more than the ring for deserving former frame
The area of highlight regions in the image of border.
When the area of highlight regions in the ambient image of the next frame is more than highlight bar in the ambient image for deserving former frame
During the area in domain, step 108 is performed；Deserve former frame when the area of highlight regions in the ambient image of the next frame is not more than
In ambient image during the area of highlight regions, step 109 is performed.
Step 108, control the vehicle headlight state be dipped headlight state.
On the one hand, in above-mentioned steps 103, when processing module detects the mean flow rate of the ambient image for deserving former frame
During more than the second luminance threshold, processing module can determine that current environment is brighter, without being then turned on high beam, therefore can control
The headlight state of the vehicle is dipped headlight state.
On the other hand, in above-mentioned steps 107, deserve when the area of highlight regions in the ambient image of the next frame is more than
In the ambient image of former frame during the area of highlight regions, processing module can determine that opposite has vehicle being close to, i.e. current field
Scape is meeting scene, in order to avoid influenceing the sight line of opposite vehicle driver, processing module to control the headlight shape of this car
State is dipped headlight state.
Example, if the two continuous frames ambient image difference that vehicle processing module gets is as shown in Figures 2 and 3, can
It is dipped headlight state with the headlight state for controlling the vehicle.
Step 109, control the vehicle headlight state be high beam state.
If processing module detected in above-mentioned steps 104 when in the ambient image of former frame in the absence of area be more than first
The highlight regions of area threshold, or detected in above-mentioned steps 106 big in the absence of area in the ambient image of the next frame
In the highlight regions of the first area threshold, or highlight regions in the ambient image of the next frame are judged in step 107
Area be not more than deserve former frame ambient image in highlight regions area when, processing module can determine that opposite does not have car
Cross, therefore it is high beam state that can control the headlight state of the vehicle, to help this car driver preferably to judge road
Face situation.
It should be noted that in actual applications, in order to improve the accuracy of detection, processing module is obtaining vehicle front
Before ambient image, whether the headlight of vehicle can also be first detected in opening, when the headlight is in opening, then
Perform the control method of above-mentioned steps 101 to the automobile front lamp state shown in step 109.
Also, it should be noted that the priority of the step of control method of automobile front lamp state provided in an embodiment of the present invention is suitable
Sequence can be adjusted suitably, and step according to circumstances can also accordingly be increased and decreased, and for example step 102 can be carried out according to circumstances
Delete.Any one skilled in the art the invention discloses technical scope in, the side of change can be readily occurred in
Method, should all be included within the scope of the present invention, therefore repeat no more.
In sum, a kind of control method of automobile front lamp state is the embodiment of the invention provides, the method can be detected
Highlight regions in the ambient image of vehicle front with the presence or absence of area more than the first area threshold, when two continuous frames ambient image
In all exist area more than the first area threshold highlight regions, and in next frame ambient image highlight regions area more than work as
In former frame ambient image during the area of highlight regions, it may be determined that vehicle front have other vehicles be close to, therefore can from
The dynamic headlight state for control vehicle is dipped headlight state.The control method of the automobile front lamp state is manually operated without driver,
Effectively increase the accuracy and promptness during control automobile front lamp state.
Fig. 4 is a kind of structural representation of the control device of automobile front lamp state provided in an embodiment of the present invention, such as Fig. 4 institutes
Show, the device can include：
First acquisition module 201, for obtaining vehicle front when the ambient image of former frame.
First detection module 202, deserves to be more than the first face with the presence or absence of area in the ambient image of former frame for detecting
The highlight regions of product threshold value, the highlight regions are the connected region of the brightness value more than the first luminance threshold of each pixel.
, there is area in the ambient image that former frame is deserved for working as more than the first area threshold in the second acquisition module 203
Highlight regions when, obtain vehicle front next frame ambient image.
Control module 204, for highlighted more than the first area threshold when there is area in the ambient image of the next frame
The area of highlight regions is more than highlight regions in the ambient image for deserving former frame in region, and the ambient image of the next frame
During area, the headlight state for controlling the vehicle is dipped headlight state.
Optionally, second acquisition module 203 specifically can be used for：
Judge deserve former frame ambient image in area more than the first area threshold highlight regions number whether etc.
In 1；
When area is more than 1 more than the number of the highlight regions of the first area threshold in the ambient image for deserving former frame,
Obtain the ambient image of vehicle front next frame；
When the number of highlight regions in the ambient image for deserving former frame is equal to 1, detecting the area of the highlight regions is
It is no more than second area threshold value, the second area threshold value be more than first area threshold；
When the area of the highlight regions is more than second area threshold value, the ambient image of vehicle front next frame is obtained.
Optionally, with reference to Fig. 5, the device can also include：
Whether the second detection module 205, the mean flow rate for detecting the ambient image for deserving former frame is bright more than second
Degree threshold value.
The first detection module 202, specifically for：
When the mean flow rate of ambient image for deserving former frame is not more than second luminance threshold, former frame is deserved in detection
Ambient image in the presence or absence of area more than the first area threshold highlight regions；
The control module 204, is additionally operable to be more than second luminance threshold when the mean flow rate of the ambient image for deserving former frame
During value, the headlight state for controlling the vehicle is dipped headlight state.
Optionally, the first detection module 202 specifically can be used for：
The redundant area in the ambient image is removed, the redundant area includes the picture of the default line number in the ambient image top
Element；
Detect and be more than the first area threshold with the presence or absence of area in the region in the ambient image in addition to the redundant area
Highlight regions.
Optionally, the first detection module 202 specifically can be used for：
Resolution decreasing treatment is carried out to the ambient image；
Highlight bar in the ambient image after detection resolution decreasing treatment with the presence or absence of area more than the first area threshold
Domain.
In sum, a kind of control device of automobile front lamp state is the embodiment of the invention provides, the device can be detected
Highlight regions in the ambient image of vehicle front with the presence or absence of area more than the first area threshold, when two continuous frames ambient image
In all exist area more than the first area threshold highlight regions, and in next frame ambient image highlight regions area more than work as
In former frame ambient image during the area of highlight regions, it may be determined that vehicle front have other vehicles be close to, therefore can from
The dynamic headlight state for control vehicle is dipped headlight state.The control process of the automobile front lamp state is manually operated without driver,
Effectively increase the accuracy and promptness during control automobile front lamp state.
It is apparent to those skilled in the art that, for convenience and simplicity of description, the device of foregoing description
With the specific work process of module, the corresponding process in preceding method embodiment is may be referred to, will not be repeated here.Additionally, this
Term "and/or" in invention, only a kind of incidence relation for describing affiliated partner, represents there may be three kinds of relations, for example,
A and/or B, can represent：Individualism A, while there is A and B, individualism B these three situations.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all it is of the invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (10)
1. a kind of control method of automobile front lamp state, it is characterised in that methods described includes：
Vehicle front is obtained when the ambient image of former frame；
The detection highlight regions when in the ambient image of former frame with the presence or absence of area more than the first area threshold, the height
Bright area is that the brightness value of each pixel is all higher than the connected region of the first luminance threshold；
When it is described when exist in the ambient image of former frame area more than the first area threshold highlight regions when, obtain vehicle before
The ambient image of square next frame；
When there is highlight regions of the area more than the first area threshold, and the next frame in the ambient image of the next frame
The area of highlight regions is more than described when the area of highlight regions in the ambient image of former frame in ambient image, and control is described
The headlight state of vehicle is dipped headlight state.
2. method according to claim 1, it is characterised in that when described big when there is area in the ambient image of former frame
When the highlight regions of the first area threshold, the ambient image of vehicle front next frame is obtained, including：
Whether area is equal to more than the number of the highlight regions of the first area threshold in judging the ambient image for working as former frame
1；
When described when area is more than 1 more than the number of the highlight regions of the first area threshold in the ambient image of former frame, obtain
Take the ambient image of vehicle front next frame；
When described when area is equal to 1 more than the number of the highlight regions of the first area threshold in the ambient image of former frame, inspection
Whether the area of the highlight regions is surveyed more than second area threshold value, the second area threshold value is more than the first area threshold
Value；
When the area of the highlight regions is more than second area threshold value, the ambient image of vehicle front next frame is obtained.
3. method according to claim 1, it is characterised in that obtain vehicle front when former frame ambient image it
Afterwards, methods described also includes：
Detection is described when whether the mean flow rate of the ambient image of former frame is more than the second luminance threshold；
When the highlight regions in the ambient image of former frame with the presence or absence of area more than the first area threshold described in the detection, bag
Include：
When described when the mean flow rate of the ambient image of former frame is not more than second luminance threshold, detection is described when previous
Highlight regions in the ambient image of frame with the presence or absence of area more than the first area threshold；
Methods described also includes：
When described when the mean flow rate of the ambient image of former frame is more than second luminance threshold, the big of the vehicle is controlled
Lamp state is dipped headlight state.
4. according to any described method of claims 1 to 3, it is characterised in that when the environment map of former frame described in the detection
Highlight regions as in the presence or absence of area more than the first area threshold, including：
The redundant area in the ambient image is removed, the redundant area includes the picture of the default line number in the ambient image top
Element；
Detect and be more than the first area threshold with the presence or absence of area in the region in the ambient image in addition to the redundant area
Highlight regions.
5. according to any described method of claims 1 to 3, it is characterised in that when the environment map of former frame described in the detection
Highlight regions as in the presence or absence of area more than the first area threshold, including：
Resolution decreasing treatment is carried out to the ambient image；
Highlight regions in the ambient image after detection resolution decreasing treatment with the presence or absence of area more than the first area threshold.
6. a kind of control device of automobile front lamp state, it is characterised in that described device includes：
First acquisition module, for obtaining vehicle front when the ambient image of former frame；
First detection module, it is described when being more than the first area threshold with the presence or absence of area in the ambient image of former frame for detecting
Highlight regions, the highlight regions are that the brightness value of each pixel is all higher than the connected region of the first luminance threshold；
Second acquisition module, for when described highlighted more than the first area threshold when there is area in the ambient image of former frame
During region, the ambient image of vehicle front next frame is obtained；
Control module, for when exist in the ambient image of the next frame area more than the first area threshold highlight regions,
And in the ambient image of the next frame highlight regions area more than described when highlight regions in the ambient image of former frame
During area, the headlight state for controlling the vehicle is dipped headlight state.
7. device according to claim 6, it is characterised in that second acquisition module, is used for：
Whether area is equal to more than the number of the highlight regions of the first area threshold in judging the ambient image for working as former frame
1；
When described when area is more than 1 more than the number of the highlight regions of the first area threshold in the ambient image of former frame, obtain
Take the ambient image of vehicle front next frame；
When described when area is equal to 1 more than the number of the highlight regions of the first area threshold in the ambient image of former frame, inspection
Whether the area of the highlight regions is surveyed more than second area threshold value, the second area threshold value is more than the first area threshold
Value；
When the area of the highlight regions is more than second area threshold value, the ambient image of vehicle front next frame is obtained.
8. device according to claim 6, it is characterised in that described device also includes：
Second detection module, it is described when whether the mean flow rate of the ambient image of former frame is more than the second luminance threshold for detecting
Value；
The first detection module, is used for：
When described when the mean flow rate of the ambient image of former frame is not more than second luminance threshold, detection is described when previous
Highlight regions in the ambient image of frame with the presence or absence of area more than the first area threshold；
The control module, is additionally operable to when described when the mean flow rate of the ambient image of former frame is more than second luminance threshold
When, the headlight state for controlling the vehicle is dipped headlight state.
9., according to any described device of claim 6 to 8, it is characterised in that the first detection module, it is used for：
The redundant area in the ambient image is removed, the redundant area includes the picture of the default line number in the ambient image top
Element；
Detect and be more than the first area threshold with the presence or absence of area in the region in the ambient image in addition to the redundant area
Highlight regions.
10., according to any described device of claim 6 to 8, it is characterised in that the first detection module, it is used for：
Resolution decreasing treatment is carried out to the ambient image；
Highlight regions in the ambient image after detection resolution decreasing treatment with the presence or absence of area more than the first area threshold.
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| CN201710170646.8A CN106915295B (en) | 2017-03-21 | 2017-03-21 | The control method and device of automobile front lamp state |
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| CN201710170646.8A CN106915295B (en) | 2017-03-21 | 2017-03-21 | The control method and device of automobile front lamp state |
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| CN106915295A true CN106915295A (en) | 2017-07-04 |
| CN106915295B CN106915295B (en) | 2019-09-17 |
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| CN201710170646.8A Active CN106915295B (en) | 2017-03-21 | 2017-03-21 | The control method and device of automobile front lamp state |
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| CN114643926A (en) * | 2020-12-17 | 2022-06-21 | 博泰车联网(南京)有限公司 | Method, system, device and storage medium for controlling high beam |
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