CN104092961B - Maritime search and rescue system and method - Google Patents
Maritime search and rescue system and method Download PDFInfo
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- CN104092961B CN104092961B CN201410355012.6A CN201410355012A CN104092961B CN 104092961 B CN104092961 B CN 104092961B CN 201410355012 A CN201410355012 A CN 201410355012A CN 104092961 B CN104092961 B CN 104092961B
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Abstract
The invention discloses a maritime search and rescue system. The maritime search and rescue system is characterized by comprising an infrared image sensor, a video coder, a video server and a monitor, wherein the infrared image sensor is connected with the video server through the video coder, and the video server is connected with the monitor through a display interface. In the maritime search and rescue system, sea surface detection imaging is carried out through the infrared image sensor, images are processed, processed image information is transmitted to a video coding module, the video coding module conducts video coding on the received image information to obtain high-quality video signals, the high-quality video signals are output to the video server through a standard video interface and are transmitted to the monitor through the video server, and search and rescue work of people and objects in a sea area is completed. The maritime search and rescue system can be used for conducting fast and reliable search and rescue in the sea area with high accuracy and high efficiency.
Description
Technical field
The present invention relates to maritime search and rescue system, a kind of more particularly, to a kind of maritime search and rescue system based on infrared thermal imaging technique
System and method.
Background technology
China's expanding economy in recent years, various relate to sea, got more and more with extra large amount of activity, scale is increasing, thus
China's maritime search and rescue task is increasingly heavy, maritime search and rescue simultaneously compared to land search and rescue have more unpredictabilities, therefore it
Difficulty also bigger, such as horse boat MH370 lost contact event causes the thinking to maritime search and rescue for the people in worldwide.
Maritime search and rescue service is the important component part of national Lash-up succor system, is also the important guarantor of national economic development
Barrier.Secondary advanced search and rescue system is to improve one of important means of search and rescue validity.Set used by maritime search and rescue at present
Standby mainly have radar and search and rescue helicopter, but it largely relies on good weather environment and sunshine condition, poor
Under climatic environment, result of detection is undesirable.
Content of the invention
It is an object of the invention to overcoming the deficiencies in the prior art, provide one kind can carry out accuracy rate height, effect in marine site
Rate is high, quick, reliability is searched and rescued a kind of maritime search and rescue system and method.
The purpose of the present invention is achieved through the following technical solutions：
A kind of maritime search and rescue system, including infrared image sensor, video encoder, video server and monitor, its
In, infrared image sensor is connected with video server by video encoder, and video server passes through display interface and supervision
Device connects.
Described infrared image sensor includes detector, reading circuit, picture processing chip and external memory storage；Its
In, picture processing chip is connected with reading circuit by control interface, and external memory storage passes through at internal data bus and image
Reason chip connects, and picture processing chip is connected with electric power system by power interface, picture processing chip by video interface and
Video server connects, and reading circuit is connected with detector.
Described image process chip includes nonuniformity correction module, blind element correction module, image filtering denoising module, figure
As details strengthens module, pseudo-color conversion module, analog-to-digital conversion module, low noise power supply module and interface sequence control module；
Described nonuniformity correction module, is corrected to thermal-induced imagery with binary nonlinear correction method by two-point method,
Image after being corrected；
Described blind element correction module, by using blind element backoff algorithm, according to the response phase of neighbor, two field picture in front and back
Closing property is predicted to the information of blind element position and substitutes；
Described image filtering and noise reduction module, is entered to thermal-induced imagery by Fast Median Filtering and the mean filter with threshold value
Row denoising, obtains image after denoising；
Described image details strengthens module, and by being mapped using dual threshold, dual threshold self-adaptive enhancement algorithm and edge increase
Strong algorithms, are processed to the histogram of original image, realize the enhancing function to image；
Described analog-to-digital conversion module, by the design architecture using pipeline ADC, realizes the simulation output of big array at a high speed
Analog-to-digital conversion；
Described low noise power supply module, by using integrated Boost control circuit, providing higher biased electrical for detector
Pressure, realizes the high responsiveness of Infrared Detectors；
Described interface sequence control module, by producing three road clock signals using the method counting frequency dividing is correct.
Described infrared image sensor is packaged by wafer scale multiple device package technology.
A kind of maritime search and rescue method, comprises the steps：
S1. infrared image sensor is processed to sea detection imaging and to image, and the image information after processing is passed
Deliver to video encoding module；
S2. video encoding module carries out Video coding to the image information receiving, and obtains high-quality vision signal, leads to
Cross standard video interface to export on video server；
S3. video server by video signal transmission to monitor.
The method that described infrared image sensor is processed to image, comprises the steps of：
S11. the various control sequential signals required for picture processing chip provides for detector, power supply and bias；
S12. detector is to sea detection imaging, and view data is passed to picture processing chip；
S13. picture processing chip is carried out to the thermal-induced imagery collecting including nonuniformity correction, blind element correction, image
Filtering and noise reduction, image detail strengthen, the function treatment of pseudo-color conversion；
S14. to the red heat after processing, outer view data carries out analog-to-digital conversion to picture processing chip；
S15. the image information after processing is sent to video encoding module through video interface by picture processing chip.
Described image process chip, by realizing using the method counting frequency dividing correctly producing three road clock signals, and
By using integrated Boost control circuit, providing compared with high bias voltage for detector, realizing the high responsiveness of Infrared Detectors；
Described nonuniformity correction, realizes the correction to thermal-induced imagery by two-point method and binary nonlinear correction method, obtains
Image to after correction；
The correction of described blind element, by using blind element backoff algorithm, according to the response correlation of neighbor, two field picture in front and back
The information of blind element position is predicted and substitutes；
Described image filtering and noise reduction, is realized to thermal-induced imagery by Fast Median Filtering and the mean filter with threshold value
Denoising, obtains image after denoising；
Described image details strengthens, and by being mapped using dual threshold, dual threshold self-adaptive enhancement algorithm and edge strengthen and calculate
Method, is processed to the histogram of original image, realizes the enhancing function to image；
Described image process chip, using the design architecture of pipeline ADC, realizes the simulation output high speed analog-digital conversion of big array
Conversion.
The invention has the beneficial effects as follows：Infrared image sensor passes through to gather the infrared image on sea, it is possible to achieve to sea
The efficient identification of searching target and positioning in area, identification accuracy is high, and search efficiency is high.
Brief description
Fig. 1 is a kind of structural representation of maritime search and rescue system of the present invention；
Fig. 2 is infrared image sensor internal structure schematic diagram；
Fig. 3 is a kind of present invention maritime search and rescue flow chart.
Specific embodiment
Below in conjunction with the accompanying drawings technical scheme is described in further detail, but protection scope of the present invention is not limited to
Described below.
As shown in figure 1, a kind of maritime search and rescue system, including infrared image sensor, video encoder, video server and
Monitor, wherein, infrared image sensor is connected with video server by video encoder, and video server is connect by display
Mouth is connected with monitor.
As shown in Fig. 2 described infrared image sensor includes detector, reading circuit, picture processing chip and outside
Memory；Wherein, picture processing chip is connected with reading circuit by control interface, and external memory storage passes through internal data bus
It is connected with picture processing chip, picture processing chip is connected with electric power system by power interface, picture processing chip passes through to regard
Frequency interface is connected with video server, and reading circuit is connected with detector.
Described image process chip includes nonuniformity correction module, blind element correction module, image filtering denoising module, figure
As details strengthens module, pseudo-color conversion module, analog-to-digital conversion module, low noise power supply module and interface sequence control module；Institute
State nonuniformity correction module, with binary nonlinear correction method, thermal-induced imagery is corrected by two-point method, after being corrected
Image；
Described blind element correction module, by using blind element backoff algorithm, according to the response phase of neighbor, two field picture in front and back
Closing property is predicted to the information of blind element position and substitutes；Described image filtering and noise reduction module, by Fast Median Filtering and band
The mean filter of threshold value carries out denoising to thermal-induced imagery, obtains image after denoising；Described image details strengthens module, leads to
Cross using dual threshold mapping, dual threshold self-adaptive enhancement algorithm and edge enhancement algorithm, at the histogram of original image
Reason, realizes the enhancing function to image；Described analog-to-digital conversion module, by the design architecture using pipeline ADC, realizes big battle array
The simulation output high speed analog-to-digital conversion of row；Described low noise power supply module, by using integrated Boost control circuit, for detecting
Device is provided compared with high bias voltage, realizes the high responsiveness of Infrared Detectors；Described interface sequence control module, by using counting
The method of frequency dividing is correct to produce three road clock signals.
As shown in figure 3, a kind of maritime search and rescue method, comprise the steps：
S1. infrared image sensor is processed to sea detection imaging and to image, and the image information after processing is passed
Deliver to video encoding module；
S2. video encoding module carries out Video coding to the image information receiving, and obtains high-quality vision signal, leads to
Cross standard video interface to export on video server；
S3. video server by video signal transmission to monitor.
The method that described infrared image sensor is processed to image, comprises the steps of：
S11. the various control sequential signals required for picture processing chip provides for detector, power supply and bias；
S12. detector is to sea detection imaging, and view data is passed to picture processing chip；
S13. picture processing chip is carried out to the thermal-induced imagery collecting including nonuniformity correction, blind element correction, image
Filtering and noise reduction, image detail strengthen, the function treatment of pseudo-color conversion；
S14. to the red heat after processing, outer view data carries out analog-to-digital conversion to picture processing chip；
S15. the image information after processing is sent to video encoding module through video interface by picture processing chip.
Described image process chip, by realizing correctly producing three road clock signals using the method counting frequency dividing；Described
Picture processing chip, by using integrated Boost control circuit, providing compared with high bias voltage for detector, realizing infrared acquisition
The high responsiveness of device；Described nonuniformity correction function, is realized to thermal-induced imagery with binary nonlinear correction method by two-point method
Correction, the image after being corrected；Described blind element calibration function, by using blind element backoff algorithm, according to neighbor, front
The response correlation of two field picture is predicted to the information of blind element position and substitutes afterwards；Described image filtering and noise reduction function, passes through
The denoising to thermal-induced imagery of Fast Median Filtering and the realization of the mean filter with threshold value, obtains image after denoising；Described
Image detail strengthens function, by being mapped using dual threshold, dual threshold self-adaptive enhancement algorithm and edge enhancement algorithm, to original
The histogram of image is processed, and realizes the enhancing function to image；Described image process chip, by adopting pipeline ADC
Design architecture, realize the simulation output high speed analog-to-digital conversion of big array.
In the present embodiment, described infrared image sensor is packaged by wafer scale multiple device package technology.
Claims (3)
1. a kind of maritime search and rescue system it is characterised in that：Including infrared image sensor, video encoder, video server and
Monitor, wherein, infrared image sensor is connected with video server by video encoder, and video server is connect by display
Mouth is connected with monitor；Described infrared image sensor includes detector, reading circuit, picture processing chip and external storage
Device；Wherein, picture processing chip is connected with reading circuit by control interface, and external memory storage passes through internal data bus and figure
As process chip connects, picture processing chip is connected with electric power system by power interface, and picture processing chip is connect by video
Mouth is connected with video server, and reading circuit is connected with detector；Described image process chip include nonuniformity correction module,
Blind element correction module, image filtering denoising module, image detail strengthen module, pseudo-color conversion module, analog-to-digital conversion module, low noise
Acoustic-electric source module and interface sequence control module；
Described nonuniformity correction module, is corrected to thermal-induced imagery with binary nonlinear correction method by two-point method, obtains
Image after correction；
Described blind element correction module, by using blind element backoff algorithm, according to the response correlation of neighbor, two field picture in front and back
The information of blind element position is predicted and substitutes；
Described image filtering and noise reduction module, is gone to thermal-induced imagery by Fast Median Filtering and the mean filter with threshold value
Make an uproar process, obtain image after denoising；
Described image details strengthens module, and by being mapped using dual threshold, dual threshold self-adaptive enhancement algorithm and edge strengthen and calculate
Method, is processed to the histogram of original image, realizes the enhancing function to image；
Described analog-to-digital conversion module, by the design architecture using pipeline ADC, realizes the simulation output high speed analog-digital conversion of big array
Conversion；
Described low noise power supply module, by using integrated Boost control circuit, providing compared with high bias voltage for detector, real
The high responsiveness of existing Infrared Detectors；
Described interface sequence control module, by producing three road clock signals using the method counting frequency dividing is correct.
2. a kind of maritime search and rescue system according to claim 1 it is characterised in that：Described infrared image sensor passes through crystalline substance
Circle level multiple device package technology is packaged.
3. a kind of maritime search and rescue method it is characterised in that：Comprise the steps：
S1. infrared image sensor is processed to sea detection imaging and to image, and the image information after processing is sent to
Video encoding module；
S2. video encoding module carries out Video coding to the image information receiving, and obtains high-quality vision signal, by mark
Quasi- video interface exports on video server；
S3. video server by video signal transmission to monitor；The side that described infrared image sensor is processed to image
Method, comprises the steps of：
S11. the various control sequential signals required for picture processing chip provides for detector, power supply and bias；
S12. detector is to sea detection imaging, and view data is passed to picture processing chip；
S13. picture processing chip is carried out to the thermal-induced imagery collecting including nonuniformity correction, blind element correction, image filtering
Denoising, image detail strengthen, the function treatment of pseudo-color conversion；
S14. to the red heat after processing, outer view data carries out analog-to-digital conversion to picture processing chip；
S15. the image information after processing is sent to video encoding module through video interface by picture processing chip；
Described image process chip, by being realized using the method counting frequency dividing correctly producing three road clock signals, and is passed through
Using integrated Boost control circuit, provide compared with high bias voltage for detector, realize the high responsiveness of Infrared Detectors；
Described nonuniformity correction, realizes the correction to thermal-induced imagery by two-point method and binary nonlinear correction method, obtains school
Image after just；
The correction of described blind element, by using blind element backoff algorithm, according to neighbor, two field picture in front and back response correlation to blind
The information of first position is predicted and substitutes；
Described image filtering and noise reduction, realizes the denoising to thermal-induced imagery by Fast Median Filtering and the mean filter with threshold value
Process, obtain image after denoising；
Described image details strengthens, by being mapped using dual threshold, dual threshold self-adaptive enhancement algorithm and edge enhancement algorithm, right
The histogram of original image is processed, and realizes the enhancing function to image；
Described image process chip, using the design architecture of pipeline ADC, the simulation output high speed analog-digital conversion realizing big array turns
Change.
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| CN104363247A (en) * | 2014-11-28 | 2015-02-18 | 北京奇虎科技有限公司 | Flow saving method and device adopting saving-free application |
| CN109358653A (en) * | 2018-09-03 | 2019-02-19 | 济源维恩科技开发有限公司 | Marine unmanned plane distributed intelligence search and rescue system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101527824A (en) * | 2009-04-07 | 2009-09-09 | 上海海事大学 | Maritime search and rescue instrument based on infrared detector |
| CN101957982A (en) * | 2010-10-11 | 2011-01-26 | 华中科技大学 | Real-time infrared image processing system suitable for high frame rate and large array infrared detector |
| CN102801912A (en) * | 2012-07-17 | 2012-11-28 | 北京伽略电子系统技术有限公司 | Infrared image processing chip and processing method |
| CN103338352A (en) * | 2013-06-11 | 2013-10-02 | 沈阳创达技术交易市场有限公司 | Marine search and rescue system |
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| US9047672B2 (en) * | 2009-12-14 | 2015-06-02 | Nec Corporation | Image generation apparatus, image generation method and image generation program |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101527824A (en) * | 2009-04-07 | 2009-09-09 | 上海海事大学 | Maritime search and rescue instrument based on infrared detector |
| CN101957982A (en) * | 2010-10-11 | 2011-01-26 | 华中科技大学 | Real-time infrared image processing system suitable for high frame rate and large array infrared detector |
| CN102801912A (en) * | 2012-07-17 | 2012-11-28 | 北京伽略电子系统技术有限公司 | Infrared image processing chip and processing method |
| CN103338352A (en) * | 2013-06-11 | 2013-10-02 | 沈阳创达技术交易市场有限公司 | Marine search and rescue system |
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