CN106803897A - A kind of twilight image exposure sensor technology for being applied to Train-borne recorder - Google Patents
A kind of twilight image exposure sensor technology for being applied to Train-borne recorder Download PDFInfo
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- CN106803897A CN106803897A CN201710130751.9A CN201710130751A CN106803897A CN 106803897 A CN106803897 A CN 106803897A CN 201710130751 A CN201710130751 A CN 201710130751A CN 106803897 A CN106803897 A CN 106803897A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
Abstract
The invention discloses a kind of twilight image exposure sensor technology for being applied to Train-borne recorder, including camera imaging region, camera imaging region includes area-of-interest and other regions, area-of-interest includes the first grid, second grid, 3rd grid, 4th grid and the 5th grid, Train-borne recorder way of escape camera imaging region is divided into area-of-interest and other regions by the present invention, area-of-interest is divided into five pieces of grids simultaneously, every piece of the area accounting and exposure weighted value of grid region match with rear view of vehicle illumination environment under night-environment, reach the purpose of clear registration of vehicle rear status information, particularly front vehicle license plate number information.
Description
Technical field
The present invention relates to image sensor exposure technical field, and in particular to a kind of low-light figure for being applied to Train-borne recorder
As exposure sensor technology.
Background technology
Twilight image sensor can under minimum 0.1lux low light conditions registration of vehicle ambient condition information.At night
Under environment, micro image sensor coordinates the light sources such as street lamp light, the night sky light, starlight, also can clearly see vehicle traveling clearly
Status information.But, because of the difference of weather, light, direction, road and other vehicle conditions, particularly in night scenes, due to
The car light of front vehicle（Comprising dipped headlight and high beam）The big illumination environment of luminance difference is formed between road surface, is caused vehicle-mounted
There is the problem that bright areas are dazzling, dark area is fuzzy in recorder picture, causes Train-borne recorder clearly to record rear
Vehicle license plate information.
The content of the invention
The purpose of the present invention is to solve above-mentioned deficiency, there is provided a kind of twilight image sensor for being applied to Train-borne recorder
Exposure technique.
The purpose of the present invention is achieved through the following technical solutions：
A kind of twilight image exposure sensor technology for being applied to Train-borne recorder, including camera imaging region, camera into
As region includes area-of-interest and other regions, area-of-interest includes the first grid, the second grid, the 3rd grid, the 4th
Grid and the 5th grid, first grate area are 18（Unit is grid subwindow number）, area accounts for area-of-interest
14.29%, exposure weighted value is 7.32%, for observing front vehicle right side environmental information；Second grate area is 27
（Unit is grid subwindow number）, area accounts for the 21.43% of area-of-interest, and exposure weighted value is 22.14%, for observing
Information near front vehicle right side area information, particularly right side vehicle lamp area；3rd grate area is 36（Unit is grid
Grid window number）, area accounts for the 28.57% of area-of-interest, and exposure weighted value is 42.38%, for observing front vehicle
Zone line information, particularly front vehicle license board information；4th grate area is 27（Unit is grid subwindow
Number）, area accounts for the 21.43% of area-of-interest, and exposure weighted value is 21.58%, for observing front vehicle left field letter
Information near breath, particularly left side vehicle lamp area；5th grate area is 18（Unit is grid subwindow number）, area
The 14.29% of area-of-interest is accounted for, exposure weighted value is 6.58%, for observing front vehicle left side environmental information.
The present invention has following beneficial effect：
Train-borne recorder way of escape camera imaging region is divided into area-of-interest and other regions by the present invention, while interested
Region is divided into five pieces of grids, every piece of the area accounting and exposure weighted value of grid region and rear view of vehicle illumination under night-environment
Environment matches, and reaches the purpose of clear registration of vehicle rear status information, particularly front vehicle license plate number information.
Brief description of the drawings
Fig. 1 is imaging region structural representation of the invention；
Fig. 2 is each lattice structure schematic diagram of area-of-interest of the invention.
Specific embodiment
The present invention is further illustrated below in conjunction with the accompanying drawings：
As depicted in figs. 1 and 2, a kind of twilight image exposure sensor technology for being applied to Train-borne recorder, including camera into
As region, camera imaging region includes area-of-interest 1 and other regions 2, and area-of-interest includes the first grid 11, second
Grid 12, the 3rd grid 13, the 4th grid 14 and the 5th grid 15, the area of the first grid 11 are 18（Unit is grid
Window number）, area accounts for the 14.29% of area-of-interest, and exposure weighted value is 7.32%, for observing front vehicle right side ring
Environment information；The area of second grid 12 is 27（Unit is grid subwindow number）, area accounts for the 21.43% of area-of-interest,
Exposure weighted value be 22.14%, for observing front vehicle right side area information, particularly right side vehicle lamp area nearby information；
The area of 3rd grid 13 is 36（Unit is grid subwindow number）, area accounts for the 28.57% of area-of-interest, exposure
Weighted value is 42.38%, for observing front vehicle zone line information, particularly front vehicle license board information；4th grid
The area of lattice 14 is 27（Unit is grid subwindow number）, area accounts for the 21.43% of area-of-interest, and exposure weighted value is
21.58%, for observing front vehicle left field information, particularly left side vehicle lamp area nearby information；5th grid 15
Area is 18（Unit is grid subwindow number）, area accounts for the 14.29% of area-of-interest, and exposure weighted value is 6.58%,
For observing front vehicle left side environmental information.
For example：In driven on public roads vehicle, the vehicle of surrounding can be recorded by its equipment, by interested
The observation front vehicle right side environmental information of the first grid 11 on region 1 observes front vehicle right side region with by the second grid 12
Information near domain information, particularly right side vehicle lamp area, then front vehicle left field can then be observed by the 4th grid 14
Information, checks left side vehicle lamp area information nearby, and the 5th grid 15 then can be used for observation front vehicle left side environmental information.
The above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not to the present invention
Implementation method restriction.For those of ordinary skill in the field, can also make on the basis of the above description
The change or variation of other multi-forms.It is all of the invention there is no need and unable to be exhaustive to all of implementation method
Any modification, equivalent and improvement made within spirit and principle etc., should be included in the protection of the claims in the present invention
Within the scope of.
Claims (6)
1. a kind of twilight image exposure sensor technology for being applied to Train-borne recorder, including camera imaging region, its feature
It is：Camera imaging region includes area-of-interest and other regions, and area-of-interest includes what is set gradually from left to right
First grid, the second grid, the 3rd grid, the 4th grid and the 5th grid.
2. a kind of twilight image exposure sensor technology for being applied to Train-borne recorder according to claim 1, its feature
It is that first grate area is 18, wherein, unit is grid subwindow number, and area accounts for area-of-interest
14.29%, exposure weighted value is 7.32%, for observing front vehicle right side environmental information.
3. a kind of twilight image exposure sensor technology for being applied to Train-borne recorder according to claim 1, its feature
It is that second grate area is 27, and unit is grid subwindow number, and area accounts for the 21.43% of area-of-interest, is exposed
Degree weighted value is 22.14%, for observing front vehicle right side area information.
4. a kind of twilight image exposure sensor technology for being applied to Train-borne recorder according to claim 1, its feature
It is that the 3rd grate area is 36, wherein, unit is grid subwindow number, and area accounts for the 28.57% of area-of-interest,
Exposure weighted value is 42.38%, for observing front vehicle zone line information.
5. a kind of twilight image exposure sensor technology for being applied to Train-borne recorder according to claim 1, its feature
It is that the 4th grate area is 27, and unit is grid subwindow number, and area accounts for the 21.43% of area-of-interest, is exposed
Degree weighted value is 21.58%, for observing front vehicle left field information.
6. a kind of twilight image exposure sensor technology for being applied to Train-borne recorder according to claim 1, its feature
It is that the 5th grate area is 18, wherein, unit is grid subwindow number, and area accounts for the 14.29% of area-of-interest,
Exposure weighted value is 6.58%, for observing front vehicle left side environmental information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710130751.9A CN106803897A (en) | 2017-03-07 | 2017-03-07 | A kind of twilight image exposure sensor technology for being applied to Train-borne recorder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710130751.9A CN106803897A (en) | 2017-03-07 | 2017-03-07 | A kind of twilight image exposure sensor technology for being applied to Train-borne recorder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106803897A true CN106803897A (en) | 2017-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710130751.9A Pending CN106803897A (en) | 2017-03-07 | 2017-03-07 | A kind of twilight image exposure sensor technology for being applied to Train-borne recorder |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1332570A (en) * | 2000-06-28 | 2002-01-23 | 索尼公司 | Exposure control device for camera mounted on electronic equipment |
| CN101442617A (en) * | 2008-12-23 | 2009-05-27 | 北京中星微电子有限公司 | Method for blocked exposure and apparatus thereof |
| CN103167244A (en) * | 2011-12-09 | 2013-06-19 | 宏达国际电子股份有限公司 | Portable electronic device with a camera function, and image capturing method with auto exposure control |
| CN103293825A (en) * | 2013-06-26 | 2013-09-11 | 深圳市中兴移动通信有限公司 | Multiple exposure method and device |
-
2017
- 2017-03-07 CN CN201710130751.9A patent/CN106803897A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1332570A (en) * | 2000-06-28 | 2002-01-23 | 索尼公司 | Exposure control device for camera mounted on electronic equipment |
| CN101442617A (en) * | 2008-12-23 | 2009-05-27 | 北京中星微电子有限公司 | Method for blocked exposure and apparatus thereof |
| CN103167244A (en) * | 2011-12-09 | 2013-06-19 | 宏达国际电子股份有限公司 | Portable electronic device with a camera function, and image capturing method with auto exposure control |
| CN103293825A (en) * | 2013-06-26 | 2013-09-11 | 深圳市中兴移动通信有限公司 | Multiple exposure method and device |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170606 |
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| RJ01 | Rejection of invention patent application after publication |