CN107092893A - A kind of recognition methods based on image procossing - Google Patents
A kind of recognition methods based on image procossing Download PDFInfo
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- CN107092893A CN107092893A CN201710291209.1A CN201710291209A CN107092893A CN 107092893 A CN107092893 A CN 107092893A CN 201710291209 A CN201710291209 A CN 201710291209A CN 107092893 A CN107092893 A CN 107092893A
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- 239000003653 coastal water Substances 0.000 claims description 16
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Abstract
The present invention relates to a kind of recognition methods based on image procossing, it uses the identifying system based on image procossing, including sea planning apparatus, top of the waves detection device, safety line identification equipment, center line constructs equipment and danger zone judges equipment, for carrying out region division to the sea close to sandy beach, obtain multiple sea locations, and serial number is carried out to multiple sea locations, it is additionally operable to determine the center line on the safety line close to the sea at sandy beach and the sea close to sandy beach, and the output based on safety line identification equipment and center line construction equipment judges the hazardous location in multiple sea locations.By means of the invention it is possible to the danger zone in the sea at sandy beach be quickly recognized, so as to provide effective prompting for neighbouring visitor.
Description
Technical field
The present invention relates to image processing field, more particularly to a kind of recognition methods based on image procossing.
Background technology
Currently, sandy beach side is gone on a tour, and to occur the thing of life danger be not rare event, and when summer, sea is gone in arriving selection
While the people that play are more and more, sea is broad beautiful for the impression of ordinary person, but do you know, seems quiet in fact
Sea be likely to treacherous.Wherein, the whirlpool that offshore current is produced is the primary killers of sandy beach greater coasting area.
The technical term of tomography tide is called rip current offshore current, is narrow and powerful current as one beam, is
Easily produce the ground of the danger of whirlpool.Offshore current is mainly what sandy beach landform, circulation field, wave and tide comprehensive function were formed.
Current are narrow and powerful, gone perpendicular to the outside ocean current of seashore.Most dangerous part is neck, and current are narrow and speed is big, it is easy to
Generation drowned accident.
Offshore current can suddenly occur in the case where people has no defence.And may all occur under any weather condition,
He is appeared on polytype sandy beach.Different from the wave that the huge sound is sent because clashing, offshore current will not draw
The attention of people is played, wherein can just be realized until people falls into.Currently, the safety detection dynamics to sandy beach is inadequate, not to mention to sand
The offshore current of beach greater coasting area have detected.
Accordingly, it would be desirable to which a kind of new sea hazardous location recognition mechanism, the danger of sandy beach greater coasting area can be recognized in time
Strategical vantage point section, so as to remind people to change the place of playing of oneself in time, ensures itself away from hazardous location, it is to avoid personal injury is sent out
It is raw.
The content of the invention
In order to solve the above problems, the invention provides a kind of identifying system and method based on image procossing, based on dark
Stream graphics characteristic matching and the undercurrent subgraph being partitioned into denoising high-definition image, based on undercurrent subgraph in denoising high-definition image
In relative position determine corresponding undercurrent position, based on close to sandy beach sea safety line and close to sandy beach sea in
Line judges the abnormal location in multiple sea locations, and the region that undercurrent position and abnormal location are repeated is defeated as hazardous location
Go out.
According to an aspect of the present invention there is provided a kind of recognition methods based on image procossing, methods described includes：
Region division is carried out to the sea close to sandy beach, multiple sea locations are obtained, and multiple sea locations are carried out suitable
Sequence is numbered, wherein using partition mode at equal intervals to the region division carried out close to the sea at sandy beach；
For each sea location, detect and export each time surge to the front position that sandy beach can be reached to make
For all previous top of the waves position；
For each sea location, based on all previous top of the waves position statistical average top of the waves position, and with being based on each sea
Safety line of the average top of the waves placement configurations of section close to the sea at sandy beach；
Determine that the average value position of average top of the waves position in each sea location, will be along seashore using as centerline position
Line direction and straight line based on centerline placement configurations as the sea close to sandy beach center line；
The center line on the safety line based on the sea close to sandy beach and the sea close to sandy beach is judged in multiple sea locations
Hazardous location；
Wherein, safety line bag of the average top of the waves placement configurations based on each sea location close to the sea at sandy beach
Include：The safety line on the sea at the i.e. close sandy beach of curve that the average top of the waves position in each sea location is connected into acquisition.
More specifically, in the recognition methods based on image procossing, in addition to：Receive the danger in multiple sea locations
Strategical vantage point section, and the hazardous location in multiple sea locations is wirelessly sent to the sandy beach management control center of distal end；Wherein, it is based on
All previous top of the waves position statistical average top of the waves position includes：After all previous top of the waves position is added and divided by all previous number of times and obtain
Position is used as average top of the waves position.
More specifically, in the recognition methods based on image procossing, in addition to：
The hazardous location in multiple sea locations is received, display is corresponding with the hazardous location in multiple sea locations in real time
Text importing information；
To carrying out high-definition image data acquisition close to the sea at sandy beach to obtain high definition coastal waters image；
Noise analysis is carried out to high definition coastal waters image, to obtain each noise type and the corresponding noise of each noise
Amplitude levels；
High definition coastal waters image, each noise type and the corresponding noise amplitude grade of each noise are received, in noise
When amplitude levels are more than predetermined level threshold value, using corresponding noise type as target noise type, based on each target noise
The noise amplitude grade size order of type sets the denoising priority of each target noise type, according to each target noise
The denoising priority of type performs corresponding denoising to high definition coastal waters image successively, obtains denoising high-definition image；
Matched based on undercurrent graphic feature and be partitioned into the undercurrent subgraph in denoising high-definition image, based on undercurrent subgraph
Relative position in denoising high-definition image determines corresponding undercurrent position, and based on to the sea progress region stroke close to sandy beach
The zone number in sea location is to be used as the first numbering where the division result divided determines and exports corresponding undercurrent position；
The center line on the safety line based on the sea close to sandy beach and the sea close to sandy beach is judged in multiple sea locations
Hazardous location includes：The center line on the safety line based on the sea close to sandy beach and the sea close to sandy beach judges multiple sea locations
In abnormal location, the zone number in abnormal location is determined based on the division result to carrying out region division close to the sea at sandy beach
To be numbered as second, and when there is first repeated numbering with the second numbering, export danger alarm signal and with repeating
Numbering numerical value, will also be exported with the corresponding sea location of numbering repeated as hazardous location；
Wherein, the center line on the safety line based on the sea close to sandy beach and the sea close to sandy beach judges multiple sea locations
In abnormal location include：For each sea location, when under its safety line part wherein line part, by the sea
Location is defined as abnormal location.
More specifically, in the recognition methods based on image procossing, in addition to：Receive danger alarm signal and with
Repeat numbering numerical value, and play with danger alarm signal and with repeatedly the corresponding phonetic warning of numbering numerical value difference in
Hold.
More specifically, in the recognition methods based on image procossing：Based on all previous top of the waves position statistical average top of the waves
Position includes：By in all previous top of the waves position, the most frequent top of the waves position of the frequency of occurrences is used as average top of the waves position.
More specifically, in the recognition methods based on image procossing：In multiple sea locations are received jeopardously
Section, while showing text importing information corresponding with the hazardous location in multiple sea locations in real time, also receives and shows in real time
Show the center line on the safety line close to the sea at sandy beach and the sea close to sandy beach；Wherein, close to sandy beach sea safety line and
Center line close to the sea at sandy beach is all based on the data refreshed in real time the time.
Brief description of the drawings
Embodiment of the present invention is described below with reference to accompanying drawing, wherein：
Fig. 1 is the block diagram of the identifying system based on image procossing according to embodiment of the present invention.
Fig. 2 is the step flow chart of the recognition methods based on image procossing according to embodiment of the present invention.
Reference：1 sea planning apparatus；2 top of the waves detection devices；3 safety line identification equipments；4 center lines construct equipment；5
Danger zone judges equipment；S101 carries out region division to the sea close to sandy beach, obtains multiple sea locations, and to multiple seas
Face location carries out serial number, wherein using partition mode at equal intervals to the region division carried out close to the sea at sandy beach；S102
For each sea location, front position that surge each time can be reached to sandy beach is detected and exported to be used as all previous wave
Sharp position；S103 is directed to each sea location, based on all previous top of the waves position statistical average top of the waves position, and based on each sea
Safety line of the average top of the waves placement configurations in location close to the sea at sandy beach；S104 determines the average top of the waves position in each sea location
The average value position put using as centerline position, using along coastline direction and the straight line based on centerline placement configurations as
Center line close to the sea at sandy beach；The center line on safety lines of the S105 based on the sea close to sandy beach and the sea close to sandy beach judges
Hazardous location in multiple sea locations
Embodiment
The embodiment to the recognition methods based on image procossing of the present invention is described in detail below with reference to accompanying drawings.
Sandy beach is the product of the longshore water movement comprehensive function of wave and its derivation.The outer incoming offshore phytal zone of sea wave, by
To the rubbing action in seabed, crest steepening, trough slow down, and reciprocal flowing is presented in water particle motion track, and flow velocity is entered in onshore
Degree is typically larger than offshore back-flow velocity, causes the net onshore of bottom sediment to be carried, and brought by the upper bath stream of sharp ground swell to beach line
Upper accumulation.Material general top in sandy beach is thicker, and the beach slope gradient is larger；Bottom material is thinner, and beach slope is gentle.Due to swash ground swell and its
The swash of wave and the repeated action of backflow, turn into beach sand and sort optimal deposit.
Go to the beach object for appreciation, and sandy beach is the place of playing that people must go, for child, and sandy beach is their paradise,
Heap castle, the game of digging crab can be played to black from early.And for adult, the project that can be played is more, by unrestrained, near on sandy beach
Extra large surfing, take pictures, the activity such as kart is often seen on sandy beach.
However, sandy beach is also a unsafe place in itself, its many danger of having hidden, child is swept away by wave, trip
Swimmer is involved in the report such as deep-sea by whirlpool and is common in space in a newspaper, once occur accident, necessarily major casualties, and due to sandy beach
The complexity of environment, in the prior art and in the absence of the Security Assurance Mechanism around sandy beach greater coasting area safety detection.
In order to overcome above-mentioned deficiency, the present invention has built a kind of identifying system and method based on image procossing, has passed through base
Detect and the position judgment based on sandy beach top of the waves, realized to the real-time of sandy beach COASTAL SURFACE hazardous location in the undercurrent of image procossing
Identification.
Fig. 1 is the block diagram of the identifying system based on image procossing according to embodiment of the present invention, described
System includes：
Sea planning apparatus, for carrying out region division to the sea close to sandy beach, obtains multiple sea locations, and to many
Individual sea location carries out serial number, wherein using partition mode at equal intervals to the region division carried out close to the sea at sandy beach；
Top of the waves detection device, for for each sea location, detecting and export surge each time can to sandy beach
The front position of arrival is to be used as all previous top of the waves position；
Safety line identification equipment, for for each sea location, based on all previous top of the waves position statistical average top of the waves position
Put, and the average top of the waves placement configurations based on each sea location are close to the safety line on the sea at sandy beach；
Center line construct equipment, for determine each sea location average top of the waves position average value position to be used as center line
Point position, using along coastline direction and the straight line based on centerline placement configurations as close to sandy beach sea center line；
Danger zone judges equipment, and multiple seas are judged for the output based on safety line identification equipment and center line construction equipment
Hazardous location in the location of face；
Wherein, safety line bag of the average top of the waves placement configurations based on each sea location close to the sea at sandy beach
Include：The safety line on the sea at the i.e. close sandy beach of curve that the average top of the waves position in each sea location is connected into acquisition.
Then, continue that the concrete structure of the identifying system based on image procossing of the present invention is further detailed.
It can also include in the identifying system based on image procossing：
Wireless Telecom Equipment, for receiving the hazardous location in multiple sea locations, and by the danger in multiple sea locations
Strategical vantage point section is wirelessly sent to the sandy beach management control center of distal end；Wherein, based on all previous top of the waves position statistical average top of the waves position
Including：After all previous top of the waves position is added and divided by all previous number of times and the position that obtains is used as average top of the waves position.
It can also include in the identifying system based on image procossing：
Display device, for receiving the hazardous location in multiple sea locations, in real time in display and multiple sea locations
The corresponding text importing information in hazardous location；
High-definition camera equipment, for obtaining high definition coastal waters figure to carrying out high-definition image data acquisition close to the sea at sandy beach
Picture；
Signal analysis equipment, for carrying out noise analysis to high definition coastal waters image, to obtain each noise type and every
A kind of corresponding noise amplitude grade of noise；
Signal denoising equipment, for receiving high definition coastal waters image, each noise type and each noise is corresponding makes an uproar
Sound amplitude levels, when noise amplitude grade is more than predetermined level threshold value, using corresponding noise type as target noise type,
Noise amplitude grade size order based on each target noise type sets the denoising priority of each target noise type,
Denoising priority according to each target noise type performs corresponding denoising to high definition coastal waters image successively, obtains denoising
High-definition image；
Undercurrent equipment for area detection equipment, for the undercurrent for matching and being partitioned into denoising high-definition image based on undercurrent graphic feature
Subgraph, the relative position based on undercurrent subgraph in denoising high-definition image determines corresponding undercurrent position, and based on sea
The zone number in sea location as first to compile where the division result of planning apparatus determines and exports corresponding undercurrent position
Number；
The danger zone judges that equipment is used for the output based on safety line identification equipment and center line construction equipment and judges many
Hazardous location in individual sea location includes：The danger zone judges that equipment is based on safety line identification equipment and center line construction is set
Standby output determines the abnormal location in multiple sea locations, and the division result based on sea planning apparatus determines abnormal location
Zone number using as second numbering, and exist repeat first numbering with the second numbering when, export danger alarm signal with
And the numbering numerical value with repetition, also sea location corresponding with the numbering repeated is exported as hazardous location；
Wherein, the output based on safety line identification equipment and center line construction equipment is determined in multiple sea locations singularly
Section includes：For each sea location, when its safety portion is under center line section, the sea location is defined as different
Normal location.
It can also include in the identifying system based on image procossing：
Voice playing equipment, the numbering numerical value for receiving danger alarm signal and with repeating, and play and dangerous report
Alert signal and phonetic warning content corresponding with the numbering numerical value difference repeated.
In the identifying system based on image procossing：Included based on all previous top of the waves position statistical average top of the waves position：Will
In all previous top of the waves position, the most frequent top of the waves position of the frequency of occurrences is used as average top of the waves position.
In the identifying system based on image procossing：Display device is additionally operable to receive safety line identification equipment and center line structure
The output of manufacturing apparatus, to show the center line of the safety line close to the sea at sandy beach and the sea close to sandy beach in real time；Wherein, it is close
The center line on the sea at the safety line on the sea at sandy beach and close sandy beach is all based on the data refreshed in real time the time.
Fig. 2 is the step flow chart of the recognition methods based on image procossing according to embodiment of the present invention, described
Method includes：
Region division is carried out to the sea close to sandy beach, multiple sea locations are obtained, and multiple sea locations are carried out suitable
Sequence is numbered, wherein using partition mode at equal intervals to the region division carried out close to the sea at sandy beach；
For each sea location, detect and export each time surge to the front position that sandy beach can be reached to make
For all previous top of the waves position；
For each sea location, based on all previous top of the waves position statistical average top of the waves position, and with being based on each sea
Safety line of the average top of the waves placement configurations of section close to the sea at sandy beach；
Determine that the average value position of average top of the waves position in each sea location, will be along seashore using as centerline position
Line direction and straight line based on centerline placement configurations as the sea close to sandy beach center line；
The center line on the safety line based on the sea close to sandy beach and the sea close to sandy beach is judged in multiple sea locations
Hazardous location；
Wherein, safety line bag of the average top of the waves placement configurations based on each sea location close to the sea at sandy beach
Include：The safety line on the sea at the i.e. close sandy beach of curve that the average top of the waves position in each sea location is connected into acquisition.
Then, the specific steps for continuing the recognition methods based on image procossing to the present invention are further detailed.
It can also include in the recognition methods based on image procossing：
The hazardous location in multiple sea locations is received, and the hazardous location in multiple sea locations is wirelessly sent to far
The sandy beach management control center at end；Wherein, included based on all previous top of the waves position statistical average top of the waves position：By all previous top of the waves position
After addition and divided by all previous number of times and the position that obtains as average top of the waves position.
It can also include in the recognition methods based on image procossing：
The hazardous location in multiple sea locations is received, display is corresponding with the hazardous location in multiple sea locations in real time
Text importing information；
To carrying out high-definition image data acquisition close to the sea at sandy beach to obtain high definition coastal waters image；
Noise analysis is carried out to high definition coastal waters image, to obtain each noise type and the corresponding noise of each noise
Amplitude levels；
High definition coastal waters image, each noise type and the corresponding noise amplitude grade of each noise are received, in noise
When amplitude levels are more than predetermined level threshold value, using corresponding noise type as target noise type, based on each target noise
The noise amplitude grade size order of type sets the denoising priority of each target noise type, according to each target noise
The denoising priority of type performs corresponding denoising to high definition coastal waters image successively, obtains denoising high-definition image；
Matched based on undercurrent graphic feature and be partitioned into the undercurrent subgraph in denoising high-definition image, based on undercurrent subgraph
Relative position in denoising high-definition image determines corresponding undercurrent position, and based on to the sea progress region stroke close to sandy beach
The zone number in sea location is to be used as the first numbering where the division result divided determines and exports corresponding undercurrent position；
The center line on the safety line based on the sea close to sandy beach and the sea close to sandy beach is judged in multiple sea locations
Hazardous location includes：The center line on the safety line based on the sea close to sandy beach and the sea close to sandy beach judges multiple sea locations
In abnormal location, the zone number in abnormal location is determined based on the division result to carrying out region division close to the sea at sandy beach
To be numbered as second, and when there is first repeated numbering with the second numbering, export danger alarm signal and with repeating
Numbering numerical value, will also be exported with the corresponding sea location of numbering repeated as hazardous location；
Wherein, the center line on the safety line based on the sea close to sandy beach and the sea close to sandy beach judges multiple sea locations
In abnormal location include：For each sea location, when under its safety line part wherein line part, by the sea
Location is defined as abnormal location.
It can also include in the recognition methods based on image procossing：Receive danger alarm signal and the volume with repetition
Number value, and play with danger alarm signal and phonetic warning content corresponding with the numbering numerical value difference repeated.
In the recognition methods based on image procossing：Included based on all previous top of the waves position statistical average top of the waves position：Will
In all previous top of the waves position, the most frequent top of the waves position of the frequency of occurrences is used as average top of the waves position.
In the recognition methods based on image procossing：Hazardous location in multiple sea locations are received, in real time display
While text importing information corresponding with the hazardous location in multiple sea locations, also receive and show in real time close to sandy beach
The center line on the sea at the safety line on sea and close sandy beach；Wherein, the safety line on the sea at close sandy beach and the sea close to sandy beach
The center line in face is all based on the data refreshed in real time the time.
In addition, the danger zone judges the function of equipment using digital signal processor come replaces realization.Data signal
Processor is a kind of microprocessor for being particularly suitable for carrying out Digital Signal Processing computing, and it is real real-time that it, which is mainly applied,
Existing various digital signal processing algorithms.
According to the requirement of Digital Signal Processing, digital signal processor typically has following main feature：(1) in a finger
A multiplication and a sub-addition can be completed by making in the cycle；(2) program and data space is separated, can be while access instruction sum
According to；(3) there is quick RAM in piece, generally can simultaneously be accessed in two pieces by independent data/address bus；(4) there is low overhead
Or without overhead loop and the hardware supported redirected；(5) quickly interrupt processing and Hardware I/O are supported；(6) have within the monocycle
Multiple hardware address generators of operation；(7) multiple operations can be performed parallel；(8) pile line operation is supported, makes fetching, translate
The operation such as code and execution can be with Overlapped Execution.
Using the identifying system and method based on image procossing of the present invention, for sandy beach COASTAL SURFACE feelings in the prior art
Condition is complicated, be difficult to the technical problem that accurately identifies hazardous location, by the accurate detection of the parameters to sandy beach COASTAL SURFACE,
Hazardous location is tentatively judged using both of which, and both of which is all judged as the region of hazardous location as final
Hazardous location is exported, so as to provide effective reference information for the people of greater coasting area.
Although it is understood that the present invention is disclosed as above with preferred embodiment, but above-described embodiment and being not used to
Limit the present invention.For any those skilled in the art, without departing from the scope of the technical proposal of the invention,
Many possible variations and modification are all made to technical solution of the present invention using the technology contents of the disclosure above, or are revised as
With the equivalent embodiment of change.Therefore, every content without departing from technical solution of the present invention, the technical spirit pair according to the present invention
Any simple modifications, equivalents, and modifications made for any of the above embodiments, still fall within the scope of technical solution of the present invention protection
It is interior.
Claims (6)
1. a kind of recognition methods based on image procossing, it is characterised in that methods described includes：
Region division is carried out to the sea close to sandy beach, multiple sea locations are obtained, and to multiple sea location carry out order volumes
Number, wherein using partition mode at equal intervals to the region division carried out close to the sea at sandy beach；
For each sea location, front position that surge each time can be reached to sandy beach is detected and exported using as going through
Secondary top of the waves position；
For each sea location, based on all previous top of the waves position statistical average top of the waves position, and based on each sea location
Safety line of the average top of the waves placement configurations close to the sea at sandy beach；
Determine that the average value position of average top of the waves position in each sea location, will be along coastline side using as centerline position
To and based on centerline placement configurations straight line as close to sandy beach sea center line；
The center line on the safety line based on the sea close to sandy beach and the sea close to sandy beach judges the danger in multiple sea locations
Location；
Wherein, the safety line of the average top of the waves placement configurations close to the sea at sandy beach based on each sea location includes：Will
The average top of the waves position in each sea location connects the safety line on the sea at the i.e. close sandy beach of curve of acquisition.
2. the recognition methods as claimed in claim 1 based on image procossing, it is characterised in that methods described also includes：
The hazardous location in multiple sea locations is received, and the hazardous location in multiple sea locations is wirelessly sent to distal end
Sandy beach management control center；
Wherein, included based on all previous top of the waves position statistical average top of the waves position：It is after all previous top of the waves position is added and divided by all previous
Number of times and the position that obtains as average top of the waves position.
3. the recognition methods as claimed in claim 2 based on image procossing, it is characterised in that methods described also includes：
The hazardous location in multiple sea locations is received, in real time display word corresponding with the hazardous location in multiple sea locations
Display information；
To carrying out high-definition image data acquisition close to the sea at sandy beach to obtain high definition coastal waters image；
Noise analysis is carried out to high definition coastal waters image, to obtain each noise type and the corresponding noise amplitude of each noise
Grade；
High definition coastal waters image, each noise type and the corresponding noise amplitude grade of each noise are received, in noise amplitude
When grade is more than predetermined level threshold value, using corresponding noise type as target noise type, based on each target noise type
Noise amplitude grade size order the denoising priority of each target noise type is set, according to each target noise type
Denoising priority perform corresponding denoising successively to high definition coastal waters image, obtain denoising high-definition image；
Matched based on undercurrent graphic feature and be partitioned into the undercurrent subgraph in denoising high-definition image, gone based on undercurrent subgraph
The relative position in high-definition image of making an uproar determines corresponding undercurrent position, and based on carrying out region division to the sea close to sandy beach
The zone number in sea location is to be used as the first numbering where division result determines and exports corresponding undercurrent position；
The center line on the safety line based on the sea close to sandy beach and the sea close to sandy beach judges the danger in multiple sea locations
Location includes：The center line on the safety line based on the sea close to sandy beach and the sea close to sandy beach is judged in multiple sea locations
Abnormal location, determines the zone number in abnormal location to make based on the division result to carrying out region division close to the sea at sandy beach
Numbered for second, and when in the presence of the first numbering repeated with the second numbering, export danger alarm signal and the volume with repetition
Number value, also exports in sea location corresponding with the numbering repeated as hazardous location；
Wherein, the center line on the safety line based on the sea close to sandy beach and the sea close to sandy beach is judged in multiple sea locations
Abnormal location includes：For each sea location, when under its safety line part wherein line part, by the sea location
It is defined as abnormal location.
4. the recognition methods as claimed in claim 3 based on image procossing, it is characterised in that methods described also includes：
Danger alarm signal and the numbering numerical value with repetition are received, and plays the numbering with danger alarm signal and with repetition
Numerical value distinguishes corresponding phonetic warning content.
5. the recognition methods as claimed in claim 4 based on image procossing, it is characterised in that：
Included based on all previous top of the waves position statistical average top of the waves position：By in all previous top of the waves position, the most frequent wave of the frequency of occurrences
Sharp position is used as average top of the waves position.
6. the recognition methods as claimed in claim 5 based on image procossing, it is characterised in that：
Hazardous location in multiple sea locations are received, shows text corresponding with the hazardous location in multiple sea locations in real time
While word display information, also receive and show in real time in the safety line close to the sea at sandy beach and the sea close to sandy beach
Line；
Wherein, the safety line on sea and the center line on sea close to sandy beach close to sandy beach are all based on the number that the time refreshes in real time
According to.
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