CN105898193A - Fog image enhancement system based on polarization spectrum - Google Patents
Fog image enhancement system based on polarization spectrum Download PDFInfo
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- CN105898193A CN105898193A CN201410604188.0A CN201410604188A CN105898193A CN 105898193 A CN105898193 A CN 105898193A CN 201410604188 A CN201410604188 A CN 201410604188A CN 105898193 A CN105898193 A CN 105898193A
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Abstract
The invention provides a fog image enhancement system based on a polarization spectrum. The system comprises a video acquisition apparatus, an optical splitter, polarizing films, an image processor and a display screen. An output terminal of the video acquisition apparatus is provided with the optical splitter. The optical splitter is provided with a semi-reflective and semi-transparent membrane. One side of a reflection surface and one side of a transmission surface of the optical splitter are provided with a first polarizing film and a second polarizing film respectively. Output terminals of a first polarization video processed by the first polarizing film and a second polarization video processed by the second polarizing film are connected to the image processor. An output terminal of the image processor is connected to the display screen. By using the system of the invention, a fog image is enhanced, clear image details are provided, a good visual sense is provided for a driver and driving safety is increased.
Description
Technical field
The present invention relates to the video enhancement techniques in computer vision field, be specifically related to a kind of based on polarization spectrum greasy weather image intensification system.
Background technology
Under the severe weather conditions such as mist, haze, rain and snow, the visibility of outdoor scenery reduces, and the video serious degradation that shooting obtains, the extraction of video information is caused serious impact by this.In all of vile weather, the frequency that the greasy weather occurs is the highest, and the impact on vision is the most serious.Greasy weather video be presented as smudgy, cross-color, contrast are low, the detailed information in video is blanked, it is impossible to clearly embody, and therefore the degeneration of greasy weather video greatly reduces the value of video, and this disturbs the normal work in a lot of field.In preventing road monitoring system, owing to fog affects, the traffic conditions on road cannot be learnt, road vehicle information None-identified；Vehicle driver is when the greasy weather drives, it is impossible to see the road conditions in front clearly, and this improves the probability that vehicle accident occurs；In the greasy weather, the scouting judgement of military surveillance system is restricted, and this is likely to result in serious consequence；It addition, the degeneration of greasy weather video brings puzzlement greatly also can to the field such as pattern recognition, remote sensing video.
At present, greasy weather video image processing system is through determining, frequently with based on entire image, the method that conversion or transfer function carry out Global treatment to image, as used color histogram, Qu Bo, wavelet transformation and homomorphic filtering etc., method comparison is simple, but is because the inadaptability of selected parameter localized region and causes the situation of subregion or deterioration of image quality.For greasy weather visibility relatively low time, generally use thermal imaging camera, realized the shooting of video by infrared lamp or laser instrument, but shooting effect is the best.
Summary of the invention
The present invention is directed to the technical problem of above-mentioned existence, it is proposed that a kind of based on polarization spectrum greasy weather image intensification system, strengthen greasy weather image, it is provided that image detail clearly.
The technical scheme is that a kind of based on polarization spectrum greasy weather image intensification system, including: video acquisition device, beam splitter, polaroid, image processor and display screen, the outfan of described video acquisition device arranges beam splitter, on described beam splitter, part reflective semitransparent film is set, the reflecting surface side of described beam splitter and transmission plane side are respectively provided with the first polaroid and the second polaroid, the the first polarization video processed through the first polaroid is connected image processor with the second polarization video output terminals processed through the second polaroid, the outfan of described image processor connects display screen.
Described beam splitter is the prism of employing 45 degree, and wherein part reflective semitransparent film is arranged on 45 degree of inclined-planes.
Described first polaroid and the second polaroid use different polarization angles.
Described video acquisition device is ccd video camera.
The invention have the benefit that by using polaroid that video image is processed, first video information is divided into two groups of identical image informations, by polaroid, image is carried out denoising, through image processor, two group image informations are being merged, being exported by display screen, greasy weather scene is processed by the present invention, obtains image clearly, there is provided good vision for Surveillance center or vehicle driver, improve travel safety.
Accompanying drawing explanation
Fig. 1 is that the one that proposes of the present invention is based on polarization spectrum greasy weather image intensification system figure.
Shown in figure: 1-video acquisition device；2-beam splitter；21-part reflective semitransparent film；3-the first polaroid；4-the second polaroid；5-image processor；6-display screen.
Detailed description of the invention
See Fig. 1, be that the one that proposes of the present invention is based on polarization spectrum greasy weather image intensification system structure chart.
As shown in Figure 1, a kind of based on polarization spectrum greasy weather image intensification system, including: video acquisition device 1, beam splitter 2, polaroid, image processor 5 and display screen 6, the outfan of described video acquisition device 1 arranges beam splitter 2, on described beam splitter 2, part reflective semitransparent film 21 is set, the reflecting surface side of described beam splitter 1 and transmission plane side are respectively provided with the first polaroid 3 and the second polaroid 4, the the first polarization video processed through the first polaroid 3 is connected described image processor 5 with the second polarization video output terminals processed through the second polaroid 4, the outfan of described image processor 5 connects display screen 6.
The image of video acquisition device collection is divided into two identical images by using beam splitter by the present invention, by polaroid, image is carried out polarization manipulation, processed through the image of polaroid by image processor, by display screen, the image after processing is shown.
Described image processor 25 two field pictures that at least process per second, so can ensure that output video image is continuous, it is ensured that the quality of output video.
Described beam splitter 2 is the prism of employing 45 degree, and wherein part reflective semitransparent film 21 is arranged on 45 degree of inclined-planes.
The present invention uses and arranges 45 degree prisms of part reflective semitransparent film as beam splitter, and the video image of video acquisition device collection is divided into two groups of identical video informations, for image procossing offer video information.
Described first polaroid 3 and the second polaroid 4 use different polarization angles.
In the embodiment of the present invention, the polarization angle of the first polaroid and the second polaroid selects according to the air light source using environment and adjusts, by using the polaroid of the polarization angle that can filter fog that two groups of identical screen images are polarized, fog noise in video image is removed, image clearly by the video image after denoising is merged, after output process.
Described video acquisition device 1 is ccd video camera.
In the embodiment of the present invention, it is divided into two-way identical the video information of video acquisition device collection by arranging beam splitter, display the first video information of halving of intensity and the second video information, first video information carries out polarization manipulation by the first polaroid to the image in the first video and obtains the first polarization video image, the polarization manipulation that second video information carries out another angle by the second polaroid to the image in the second video obtains the second polarization video image, first polarization video image and the second polarization video image carry out merging the video that image output strengthens by image processor, shown by display, good vision is provided for driver, improve travel safety.
Above in conjunction with accompanying drawing, the preferred embodiment for the present invention is explained in detail, but the invention is not restricted to above-mentioned embodiment, in the ken that those of ordinary skill in the art are possessed, it is also possible to make a variety of changes on the premise of without departing from present inventive concept.Many other can be made without departing from the spirit and scope of the present invention to change and remodeling.Should be appreciated that and the invention is not restricted to specific embodiment, the scope of the present invention is defined by the following claims.
Claims (4)
1. one kind based on polarization spectrum greasy weather image intensification system, it is characterised in that including: video acquisition fills
Put (1), beam splitter (2), polaroid, image processor (5) and display screen (6), described video acquisition
The outfan of device (1) arranges beam splitter (2), and described beam splitter (2) arranges part reflective semitransparent film (21),
The reflecting surface side of described beam splitter (1) and transmission plane side are respectively provided with the first polaroid (3) and second
Polaroid (4), through the first polaroid (3) process first polarization video with through the second polaroid (4)
The the second polarization video output terminals processed connects described image processor (5), described image processor (5)
Outfan connects display screen (6).
One the most according to claim 1 is based on polarization spectrum greasy weather image intensification system, and its feature exists
Be to use the prism of 45 degree in, described beam splitter (2), wherein part reflective semitransparent film (21) be arranged on 45 degree oblique
On face.
One the most according to claim 1 is based on polarization spectrum greasy weather image intensification system, and its feature exists
In, described first polaroid (3) and the second polaroid (4) use different polarization angles.
One the most according to claim 1 is based on polarization spectrum greasy weather image intensification system, and its feature exists
In, described video acquisition device (1) is ccd video camera.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410604188.0A CN105898193A (en) | 2014-10-28 | 2014-10-28 | Fog image enhancement system based on polarization spectrum |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410604188.0A CN105898193A (en) | 2014-10-28 | 2014-10-28 | Fog image enhancement system based on polarization spectrum |
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| CN105898193A true CN105898193A (en) | 2016-08-24 |
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| CN201410604188.0A Pending CN105898193A (en) | 2014-10-28 | 2014-10-28 | Fog image enhancement system based on polarization spectrum |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1342054A (en) * | 1998-11-05 | 2002-03-27 | 斯托迈奇克公司 | Method and apparatus for providing high contrast imaging |
| CN202057597U (en) * | 2010-12-30 | 2011-11-30 | 深圳大学 | Fluorescent microscopic imaging system |
| CN102682443A (en) * | 2012-05-10 | 2012-09-19 | 合肥工业大学 | Rapid defogging algorithm based on polarization image guide |
| CN102801998A (en) * | 2012-07-17 | 2012-11-28 | 西北工业大学 | Portable polarimetric image collecting and processing system |
| CN103826530A (en) * | 2012-07-25 | 2014-05-28 | 松下电器产业株式会社 | Image pickup system |
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2014
- 2014-10-28 CN CN201410604188.0A patent/CN105898193A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1342054A (en) * | 1998-11-05 | 2002-03-27 | 斯托迈奇克公司 | Method and apparatus for providing high contrast imaging |
| CN202057597U (en) * | 2010-12-30 | 2011-11-30 | 深圳大学 | Fluorescent microscopic imaging system |
| CN102682443A (en) * | 2012-05-10 | 2012-09-19 | 合肥工业大学 | Rapid defogging algorithm based on polarization image guide |
| CN102801998A (en) * | 2012-07-17 | 2012-11-28 | 西北工业大学 | Portable polarimetric image collecting and processing system |
| CN103826530A (en) * | 2012-07-25 | 2014-05-28 | 松下电器产业株式会社 | Image pickup system |
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Application publication date: 20160824 |