CN105306828A - Whole-circle observation method for identifying fixed point of sonar imaging system - Google Patents
Whole-circle observation method for identifying fixed point of sonar imaging system Download PDFInfo
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- CN105306828A CN105306828A CN201510832772.6A CN201510832772A CN105306828A CN 105306828 A CN105306828 A CN 105306828A CN 201510832772 A CN201510832772 A CN 201510832772A CN 105306828 A CN105306828 A CN 105306828A
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Abstract
The invention discloses a whole-circle observation method for identifying a fixed point of a sonar imaging system. The whole-circle observation method for identifying the fixed point of the sonar imaging system is characterized by comprising the steps of arranging an acoustic lens on a rotary rod; relative to a water surface, vertically inserting the rotary rod to a side surface of a ship which is anchored and fixed in an imaging to-be-detected area; rotating the rotary rod for an angle of 20 degrees at each time so as to perform 360-degree whole-circle observation and camera shooting for an underwater target; splicing all the images into a complete underwater target image map; then identifying and interpreting the image map; calculating a specific surface area and a number of detected targets within an imaging range; and finishing quantified analysis of detection of the underwater targets. In comparison with the prior art, the whole-circle observation method for identifying the fixed point of the sonar imaging system achieves 360-degree whole-circle observation and continuous camera shooting, a generated photo covers a big area, and the working efficiency is 15 times that of single imaging; and the specific surface area and the number of the detected targets within the imaging range are calculated through a sight distance and the number of the detected targets in the image, so that quantified statistic analysis of underwater detection is realized, and the accuracy is greatly improved.
Description
Technical field
The present invention relates to submarine target imaging and quantize detection technique field, specifically a kind of identification sonar imaging system fixing point position loopful observation procedure.
Background technology
At present, identification sonar imaging system under water imaging side mask has obvious advantage, and the resolution of instrument is very high, can obtain the image of high definition in feculent water body, especially the image quality under instrument remains static is very high, and the imaging effect under motion state is poor.Tradition adopts static shooting, the boating type shooting of fixed observer angle and fixed lens, or adopts the hand-held shooting of diver, realizes quantitative statistics analysis to multiple being difficult under water.
Prior art identification sonar imaging system single width areas imaging horizontal direction is 29o, and vertical direction is 14o, and in the depth of water situation of about 10m, corresponding area is under water less, and detection efficiency is low.
Summary of the invention
The object of the invention is a kind of identification sonar imaging system fixing point position loopful observation procedure designed for the deficiencies in the prior art, rotation acoustics camera lens is adopted to carry out 360o loopful observation shooting to fixing point, complete the identification sonar imaging of submarine target, this formation method is made a video recording continuously, pass through image mosaic technology, the photograph area coverage generated is large, operating efficiency is 15 times of single width imaging, owing to being the imaging of fixing point position, by the quantity of the sighting distance on image and detected target, the surface area in areas imaging and the detected target quantity in areas imaging can be calculated, achieve the quantitative statistics analysis detected under water, accuracy promotes greatly.
The concrete technical scheme realizing the object of the invention is: a kind of identification sonar imaging system fixing point position loopful observation procedure, it is characterized in that the acoustics camera lens of identification sonar imaging system is arranged on bottom swingle by the method, swingle is located at the vertical water surface fixed mount vessel's side that anchoring is fixed on Underwater Imaging region to be detected, described swingle top is provided with round angle scale, swingle rotates the 360o loopful observation shooting carrying out submarine target with each 20o angle, and between every adjacent image, have the overlap at 2 ~ 4o angle, every width imaging joint is become a complete submarine target striograph by employing image mosaic technology, then submarine target striograph is identified and interpretation, calculate the surface area in areas imaging and detected target quantity, complete the quantitative analysis of underwater target detection.
Described swingle adopts channel-section steel and two " U " the type bolt being welded on vessel's side that its vertical water surface fixed mount is located at vessel's side.
The present invention compared with prior art has the observation of 360o loopful and shooting continuously, the photograph area coverage generated is large, operating efficiency is 15 times of single width imaging, by the quantity of the sighting distance on image and detected target, just can calculate the surface area in areas imaging and the detected target quantity in areas imaging, achieve the quantitative statistics analysis detected under water, accuracy promotes greatly, has good application prospect.
Accompanying drawing explanation
Fig. 1 is concrete utilization schematic diagram of the present invention;
Fig. 2 is areas imaging schematic diagram of the present invention.
Embodiment
Embodiment 1
Accompanying drawings 1 ~ accompanying drawing 2, first that boats and ships 1 are fixing and be docked in the fixing point 12 in Underwater Imaging region to be detected with anchor hawser 2, make the plan position approach of boats and ships 1 substantially fixing, one section of channel-section steel 3 is welded on the side of boats and ships 1, notch outwards and be substantially in vertical state.Be arranged on by the acoustics camera lens 5 of identification sonar imaging system on the fixed disk 13 of swingle 4 bottom, swingle 4 is arranged on the top of channel-section steel 3 by the ring flange 7 on top, is fixed on channel-section steel 3 by swingle 4 with the bolt 6 of twice " U " type.A whole set of imaging system is erected on the ring flange 7 on swingle 4 top, and ring flange 7 is provided with round angle scale 8, and the installation completing whole system adjusts the observation angle of acoustics camera lens 5 afterwards, makes detected target blur-free imaging.After identification sonar imaging system has been debugged, rotary flange dish 7, average each 20o angle that rotates carries out Underwater Imaging observation, ensure the overlap having 2 ~ 4o angle between adjacent image simultaneously, until complete 360o loopful observation shooting, namely the loopful observation shooting of fixing point 12 is completed, about obtain 18 photographs clearly, the areas imaging border 10 that the coverage 11 of photograph is formed by the beam boundary 9 of acoustics camera lens 5, image mosaic technology every width imaging is adopted to complete a complete submarine target striograph, then submarine target striograph is identified and interpretation, calculate the surface area in areas imaging and the detected target quantity in areas imaging, complete the quantitative analysis of underwater target detection.
More than just the present invention is further illustrated, and be not used to limit this patent, allly implements for the present invention's equivalence, within the right that all should be contained in this patent.
Claims (2)
1. an identification sonar imaging system fixing point position loopful observation procedure, it is characterized in that the acoustics camera lens of identification sonar imaging system is arranged on bottom swingle by the method, swingle is located at the vertical water surface fixed mount vessel's side that anchoring is fixed on Underwater Imaging region to be detected, described swingle top is provided with round angle scale, swingle rotates the 360o loopful observation shooting carrying out submarine target with each 20o angle, and between every adjacent image, have the overlap at 2 ~ 4o angle, every width imaging joint is become a complete submarine target striograph by employing image mosaic technology, then submarine target striograph is identified and interpretation, calculate the surface area in areas imaging and detected target quantity, complete the quantitative analysis of underwater target detection.
2. identification sonar imaging system fixing point position loopful observation procedure according to claim 1, is characterized in that described swingle adopts channel-section steel and two " U " the type bolt being welded on vessel's side that its vertical water surface fixed mount is located at vessel's side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510832772.6A CN105306828A (en) | 2015-11-26 | 2015-11-26 | Whole-circle observation method for identifying fixed point of sonar imaging system |
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| CN201510832772.6A CN105306828A (en) | 2015-11-26 | 2015-11-26 | Whole-circle observation method for identifying fixed point of sonar imaging system |
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| CN105306828A true CN105306828A (en) | 2016-02-03 |
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| CN201510832772.6A Pending CN105306828A (en) | 2015-11-26 | 2015-11-26 | Whole-circle observation method for identifying fixed point of sonar imaging system |
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| CN111810780A (en) * | 2020-06-24 | 2020-10-23 | 李雪燕 | Auxiliary device for reducing shaking and facilitating underwater stable shooting |
| CN112083402A (en) * | 2020-09-15 | 2020-12-15 | 哈尔滨工程大学 | Underwater target sailing detection experimental method under pool condition |
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Application publication date: 20160203 |