CN106845343A - A kind of remote sensing image offshore platform automatic testing method - Google Patents

A kind of remote sensing image offshore platform automatic testing method Download PDF

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CN106845343A
CN106845343A CN201611161835.0A CN201611161835A CN106845343A CN 106845343 A CN106845343 A CN 106845343A CN 201611161835 A CN201611161835 A CN 201611161835A CN 106845343 A CN106845343 A CN 106845343A
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CN106845343B (en
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段贺
彭晨
乔雪
刘久云
胡岩峰
刘振
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Suzhou Research Institute Institute Of Electronics Chinese Academy Of Sciences
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Abstract

The invention discloses a kind of remote sensing image offshore platform automatic testing method, the remotely sensed image characteristic to offshore oil and gas platform multiresolution, multiple views first is analyzed, and optimal remote sensing images are fitted by proper subspace and principal component component.Then by spatial-temporal Markov random field model, the signal to noise ratio and signal to noise ratio of offshore platform detection are improved, exports target Saliency maps picture.Finally build large-scale target criteria data set, depth convolutional neural networks are carried out with the multi-node parallel framework based on hadoop distributed file storage systems to train, tuning is continued to depth convolutional neural networks, the stability characteristic (quality) of extensive target is extracted, offshore oil and gas platform fast and accurately automatic detection is realized in magnanimity remote sensing images.

Description

A kind of remote sensing image offshore platform automatic testing method
Technical field
The invention belongs to remote sensing image interpretation field, more particularly to a kind of remote sensing image offshore platform automatic detection side Method.
Background technology
1.1 are based on the relatively-stationary detection method in offshore oil and gas platform geographical position
It is relatively fixed according to offshore oil and gas platform geographical position, detection is realized the characteristics of Ship Target is constantly moved.Such as The SAR image data based on European Environment satellite such as Casadio S., detect naval target, according to target using CFAR methods Location invariance extracts offshore oil and gas platform;Cheng L. etc. detect naval target using two-parameter CFAR, further according to fixation The relative angular position invariance principle of target extracts offshore platform;Yongxue Liu etc. are using Landsat land imager (OLI) multispectral data, based on context feature and position, the consistency of yardstick detect offshore oil and gas platform.
1.2 are based on offshore oil and gas platform infrared signature detection method
Equations of The Second Kind method realizes target detection by the infrared signature of offshore oil and gas platform.Most offshore oil Gas platform can effectively detect these offshore platforms by burning waste gas of releasing flare by extracting fire point in infrared band. Such as Elvidge defends OLS (Operational Line-scan System) sensing data of meteorological satellite by the U.S. Carry out the natural gas fire point detection in the whole world;Casadio etc. is passed by ATSR (Along Track Scanning Radiometer) Sensor data, radiation feature extraction is carried out to SAR image detection target, detects the offshore platform in Atlantic Ocean North Sea region; The satellite data that Anejionu etc. passes through Landsat and MODIS, burning natural gas is detected using radiation filtering and space filtering Offshore platform;Meng Ruolin etc. is chosen and sliding window using the multispectral data of Landsat TM sensors by optimal threshold Method extracts offshore oil and gas platform.
Above-mentioned two classes offshore oil and gas detection of platform method is all that the image first to single phase carries out target detection, it is clear that In this case, whole detection rate will be directly affected by Mono temporal image detection rate, and the detection mistake of a certain phase is just Final missing inspection or false-alarm may be caused.And for offshore oil and gas platform, under Mono temporal, verification and measurement ratio is difficult to ensure, mainly because For:1) offshore oil and gas platform yardstick is smaller, and its length and width only has generally at 100 meters or so in the remote sensing images of normal resolution More than ten pixel size;2) offshore oil and gas platform imaging signal is weaker, it is difficult to substantially distinguished with background;3) maritime environment is complicated, The noise jamming such as wave, cloud layer are serious;4) imaging features with naval vessel are similar, easily disturbed by Ship Target.
The content of the invention
When the technical problems to be solved by the invention are directed to the detection offshore oil and gas platform from magnanimity remote sensing image data, The problem that target detection accuracy rate is low, workload is big for facing, it is proposed that when one kind is based on depth convolutional neural networks and three-dimensional The offshore platform detection method of empty Markov random field.
The present invention uses following technical scheme to solve above-mentioned technical problem
A kind of remote sensing image offshore platform automatic testing method, specifically comprises the following steps:
Step 1, the remotely sensed image characteristic to offshore oil and gas platform multiresolution, multiple views is analyzed, by feature Space and principal component component fitting remote sensing images;
Step 2, by spatial-temporal Markov random field model, improves the signal to noise ratio and signal to noise ratio of offshore platform detection, defeated Go out target Saliency maps picture;
Step 3, builds target criteria data set, and depth convolutional neural networks are carried out to be deposited based on hadoop distributed documents Depth convolutional neural networks are continued tuning by the multi-node parallel framework training of storage system, and the stabilization for extracting extensive target is special Property, realizes in magnanimity remote sensing images offshore oil and gas platform fast and accurately automatic detection.
As the further preferred scheme of remote sensing image offshore platform automatic testing method of the present invention, the step 1 Specifically comprise the following steps:
Step 1.1, chooses the multidate remote sensing image collection under different resolution, multiple views;
Step 1.2, sets up ocean detection identification region priori database;
Step 1.3, is processed the input picture collection in step 1 by the priori database set up in step 2, Non- sea area information in remotely-sensed data, the information in the deeper region in ocean that can not possibly carry out exploitation of offshore oil and gas are picked Remove, the image set after being processed;
Step 1.4, the image set to being obtained in step 3 is manually demarcated, and obtains mark remote sensing images collection;
Step 1.5, proper subspace and principal component to marking remote sensing images collection carry out simulation analysis, obtain multidate distant Sense image set.
As the further preferred scheme of remote sensing image offshore platform automatic testing method of the present invention, the step 2 Specifically comprise the following steps:
Step 2.1, temporal low-pass filter is carried out to the image in image set, initializes Markov random field;
Step 2.2, according to the Multitemporal Remote Sensing Images of input, sets up three-dimensional Markov random field model, and consider distant Sense gradation of image distributed intelligence meets finite mixtures Gauss model, obtains combination condition probability;
Step 2.3, maximal possibility estimation is carried out according to the conditional probability in step 2.2, calculates Markov random field mould Shape parameter;
Step 2.4, Markov random field is updated with the parameter calculated, and horse is obtained again through maximal possibility estimation Er Kefu random field models parameters;
Whether step 2.5, the Markov random field model parameter error calculated twice before and after contrast meets convergence;If full Foot, then perform step 2.6, otherwise continues executing with step 2.4;
Step 2.6, output target Saliency maps picture is calculated by three-dimensional space-time Markov random field model.
As the further preferred scheme of remote sensing image offshore platform automatic testing method of the present invention, the step 3 Specifically comprise the following steps:
Step 3.1, obtains platform Sample Storehouse, and then stores on hadoop distributed file storage systems, in k node Upper storage Sample Storehouse subset, allows the independent training sample database of each node, initializes each parameter of convolutional neural networks;
Step 3.2, each node carry out simultaneously Sample Storehouse subset complete network training, obtain convolutional neural networks parameter to Amount, and use the overall neural network parameter of neural network parameter fitting of each node;
Step 3.3, each node neural network parameter is updated with overall neural network parameter;
Step 3.4, man-machine interactively determines training effect, and persistence parameters tuning repeats step 3.2 to step 3.3, directly Requirement is reached to training;
Step 3.5, adds target sample, repeat step 3.2 to step 3.4;
Step 3.6, using the convolutional neural networks trained in step 3.5 in step 2.6 export target conspicuousness Image detected, exports object detection results.
As the further preferred scheme of remote sensing image offshore platform automatic testing method of the present invention, in step 1.2 In, longitude and latitude, ocean depth of the several databases comprising coastal waters.
The present invention uses above technical scheme compared with prior art, with following technique effect:
1) analysis method of optical remote sensing imaging characteristic of the offshore platform under multiresolution, multiple views is established, favorably Target and false-alarm targets are distinguished in distinguishing;
2) the three-dimensional space-time Markov random field model of multidate is set up, effective output target Saliency maps picture shows Write and suppress picture noise and noise jamming;
3) build based on the storage of hadoop distributed documents and train depth convolutional neural networks, greatly improve instruction Practice efficiency, and reach the accuracy of offshore platform target detection higher.
Brief description of the drawings
Fig. 1 is offshore platform detection method block diagram;
Fig. 2 is three-dimensional Markov random field model;
Fig. 3 is convolutional neural networks Organization Chart;
Fig. 4 is convolutional neural networks parallel computation Organization Chart;
Fig. 5 is multi-temporal remote sensing data simulation analysis logic diagram;
Fig. 6 is three-dimensional Markov random field model modeling logic block diagram;
Fig. 7 is depth convolutional neural networks parallel training framework logic diagram.
Specific embodiment
Technical scheme is described in further detail below in conjunction with the accompanying drawings:
The technical solution adopted by the present invention is:Remotely sensed image first to offshore oil and gas platform multiresolution, multiple views is special Property be analyzed, optimal remote sensing images are fitted by proper subspace and principal component component.Then by space-time markov with Airport model, improves the signal to noise ratio and signal to noise ratio of offshore platform detection, exports target Saliency maps picture.Finally build large-scale Depth convolutional neural networks are carried out the multi-node parallel based on hadoop distributed file storage systems by target criteria data set Framework is trained, and tuning is continued to depth convolutional neural networks, extracts the stability characteristic (quality) of extensive target, realizes magnanimity remote sensing images Middle offshore oil and gas platform fast and accurately automatic detection.
Step 1, the remotely sensed image characteristic to offshore oil and gas platform multiresolution, multiple views is analyzed, by feature Space and principal component component fitting remote sensing images;
Step 2, by spatial-temporal Markov random field model, improves the signal to noise ratio and signal to noise ratio of offshore platform detection, defeated Go out target Saliency maps picture;
Step 3, builds large-scale target criteria data set, and depth convolutional neural networks are carried out to be distributed based on hadoop Depth convolutional neural networks are continued tuning by the multi-node parallel framework training of formula document storage system, extract extensive target Stability characteristic (quality), realize in magnanimity remote sensing images offshore oil and gas platform fast and accurately automatic detection.
As the further preferred scheme of remote sensing image offshore platform automatic testing method of the present invention, the step 1 Specifically comprise the following steps:
Step 1.1, the multidate optical remote sensing figure under selected characteristic obvious a number of different resolution, multiple views Image set A1;
Step 1.2, sets up ocean detection identification region priori database SQ on a large scale;
Step 1.3, is carried out by the priori database SQ set up in step 2 to the input picture collection A1 in step 1 Treatment, by the non-sea area information in remotely-sensed data, the information in the deeper region in ocean that can not possibly carry out exploitation of offshore oil and gas Rejected, the image set A2 after being processed;
Step 1.4, the image set A2 to being obtained in step 3 is manually demarcated, and obtains mark remote sensing images collection A3;
Step 1.5, proper subspace and principal component to marking remote sensing images collection carry out simulation analysis, obtain multidate distant Sense image set A4.
As the further preferred scheme of remote sensing image offshore platform automatic testing method of the present invention, the step 2 Specifically comprise the following steps:
Step 2.1, temporal low-pass filter is carried out to the image in image set A4, initializes Markov random field;
Step 2.2, according to the Multitemporal Remote Sensing Images of input, sets up three-dimensional Markov random field model, and consider distant Sense gradation of image distributed intelligence meets finite mixtures Gauss model, obtains combination condition probability;
Step 2.3, maximal possibility estimation is carried out according to the conditional probability in step 2.2, calculates Markov random field mould Shape parameter;
Step 2.4, Markov random field is updated with the parameter calculated, and horse is obtained again through maximal possibility estimation Er Kefu random field models parameters;
Whether step 2.5, the Markov random field model parameter error calculated twice before and after contrast meets convergence;If full Foot, then perform step 2.6, otherwise continues executing with step 2.4;
Step 2.6, output target Saliency maps picture is calculated by three-dimensional space-time Markov random field model.
As the further preferred scheme of remote sensing image offshore platform automatic testing method of the present invention, the step 3 Specifically comprise the following steps:
Step 3.1, obtains platform Sample Storehouse, stores on hadoop distributed file storage systems, is deposited on k node Storage Sample Storehouse subset, allows the independent training sample database of each node, initializes each parameter of convolutional neural networks;
Step 3.2, each node carry out simultaneously Sample Storehouse subset complete network training, obtain convolutional neural networks parameter to Amount, and use the overall neural network parameter of neural network parameter fitting of each node;
Step 3.3, each node neural network parameter is updated with overall neural network parameter;
Step 3.4, man-machine interactively determines training effect, and persistence parameters tuning repeats step 3.2 to step 3.3, directly Requirement is reached to training;
Step 3.5, adds target sample, repeat step 3.2 to step 3.4;
Step 3.6, using the convolutional neural networks trained in step 3.5 in step 2.6 export target conspicuousness Image detected, exports object detection results.
Fig. 1 is the agent structure block diagram of the inventive method, random based on depth convolutional neural networks and three-dimensional markov The detection method of the remote sensing images offshore platform of field mainly includes three parts:Part I, offshore platform remotely sensed image characteristic Analysis emulation and fitting;Part II;The three-dimensional space-time Markov random field modeling of multidate offshore platform;Part III, Parallel architecture training and offshore platform based on depth convolutional neural networks are automatically extracted.The output of Part I is used as second Partial input, the output of the second part as the detection of platform part in Part III input.
Fig. 2 is three-dimensional space-time Markov random field model figure, by the single frames remote sensing images of two-dimensional coordinate system according to when Idle discharge is arranged, and constitutes 3-dimensional image model, and any pixel is present on the adjoint point and 18 time domains on 8 spatial domains in model Adjoint point.
Fig. 3 is convolutional neural networks Organization Chart, and convolutional neural networks are mainly used to identification displacement, scaling and other forms and turn round The X-Y scheme of bent consistency, convolutional neural networks are a neutral nets for multilayer, and every layer is made up of multiple two dimensional surfaces, and Each plane is made up of multiple independent neurons.C1, S2, C3 and S4 are characteristic images in figure, and C1 and C3 is convolutional layer feature Image, it is preferred that emphasis is the extraction of feature, S2 and S4 are sample level characteristic images, it is preferred that emphasis is the calculating of feature.
Fig. 4 is convolutional neural networks parallel computation Organization Chart.Substantial amounts of training sample is stored onto different memory nodes, It is separate between sample, have the nerve net on complete convolutional neural networks, therefore each node on each memory node Network is only responsible for training part sample set, and node processing is once updated after completing.Sample is in the training process, each in network Interlayer is unidirectionally successively to carry out, and is separate with the characteristic pattern of layer, neuron and neuron weights, therefore there may be The parallel computation in convolutional neural networks of multiple samples.
Fig. 5 is multi-temporal remote sensing data simulation analysis logic diagram, is first, according to input remotely-sensed data, to judge remote sensing number According to geographical position, according to priori, set up remotely-sensed data geographic information database, reject non-in the remotely-sensed data of input Pelagic division.Secondly the non-targeted such as artificial calibrating platform target and naval vessel, islands and reefs are carried out to the image after treatment.Then to distant Sense image carries out proper subspace and principal component analysis, selects optimal band image.
Fig. 6 is three-dimensional space-time Markov random field model modeling logic block diagram, and the image to being input into carries out temporal low-pass Filter to initialize Markov random field.The half-tone information of remote sensing images meets finite mixtures Gaussian Profile, obtains three-dimensional horse The conditional probability of Er Kefu random field models, by maximal possibility estimation solving model parameter, more new model, when maximum likelihood is estimated Collect and hold back, export target Saliency maps picture.
Fig. 7 is depth convolutional neural networks parallel training framework logic diagram, distributed storage is carried out to Sample Storehouse, each The training of depth convolutional neural networks is carried out on memory node simultaneously, and is confirmed by man-machine interactively, model parameter is persistently adjusted It is excellent, and add Sample Storehouse and be trained.When preferable convolutional neural networks are reached, the image to being input into quickly is detected, Output testing result.
The following detailed description of technical scheme and the principles of science of institute's foundation.
1st, the principal component analysis principle in offshore platform remotely sensed image specificity analysis:
1. input n frame remote sensing image datas are assumed, the i-th two field picture is converted into length is the vector of L, and then sets up L × n Two-dimensional image Matrix C={ c1,c2,…cn}。
2. in view of the data of remote sensing image are larger, it is assumed that n≤L, the average of two-dimensional matrix image C is For ease of description, willIt is designated asIt is rightSingular value decomposition is carried out, be can obtain
Wherein, ∑ is diagonal matrix, its diagonal element σ1,…,σnIt isCharacteristic value, and element value To arrange sequence, i.e. σ1≥σ2≥σ3≥,…,≥σn;U is an orthogonal matrix, and the column vector in U is's σ in characteristic vector, with ∑1,…,σnThink correspondence;V is an orthogonal matrix, and the column vector in V is's Characteristic vector.
3. for diagonal matrix sigma, when i values are more than a certain value, σ i value very littles now retain the preceding m row of U matrixes, obtain New matrix Um, i.e. the principal component component data of remote sensing images.
2nd, remote sensing images space-time three-dimensional Markov random field model principle is as follows:
(1) Markov model principle
Markov random field looks like comprising Markov property and random field two-layer.Markov property refers to future State is only relevant with current state, is worth according to random assign phase space one of certain distribution when to each position Afterwards, its entirety is just called random field.
1. the finite point set that S={ (i, j) | 1≤i≤M, 1≤j≤N } represents MN positions, i.e. position in random field are set, Λ={ 1,2,3 ..., L } represents the phase space in state space, i.e. random field, X={ xs| s ∈ S } represent be defined on's Random field, xsRepresent on random field X, state space is the hidden state stochastic variable of Λ, i.e. xs∈Λ.In the picture, lattice point collection S represents the position of pixel, and X is referred to as label, the usually set of pixel value, and Λ is label stochastic variable xsSet, L represents Divide the image into the number for different zones.
2. the set of the general neighborhood system that δ={ δ (s) | s ∈ S } is defined on S is set, it meets following characteristic:
Then position r ∈ δ (s) is referred to as the adjoint point of s, and δ (s) is referred to as the adjoint point collection of s.In the present invention, according to the European of pixel Distance definition neighborhood system:
δ(n)(s)=and r | d (s, r)≤n, r ≠ s } (3)
In formula (3), n is the order of neighborhood system, and d () is represented with Euclidean distance.ForMeet characteristicThere are different neighbour structures in S, the subset being made up of with its adjoint point single pixel or pixel on SReferred to as one son group, the collection of sub- group c shares C to represent.
3. it is the neighborhood system on S to set δ, as random field X={ xs| s ∈ S } meet following condition:
Then X is called the Markov random field with δ as neighborhood system.
(2) iterative estimate of markov random file parameter:
1. in order to determine the neighborhood local relation of label prior probability and label, set up Markov random field with Gibbs distribution relations.Gibbs distributions meet following joint probability distribution form:
P (X=x)=(1/Z) exp [- U (x)] (5)
Wherein,Referred to as energy function, VcX () is son group only relevant with each pixel value in sub- group c Potential function,Referred to as partition function.The condition of equivalence that Gibbs is distributed in MRF is:
2. image is split using Markov random field be exactly potential image label Correct out, with Reach the posterior probability (MAP) of maximum:
3. the feature of remote sensing images using image half-tone information, the half-tone information of remote sensing images meets following limited mixed Close Gauss model.
Wherein, the gray scale of image is divided into I region, ciIt is component weight, μiIt is average,It is variance, Γ () is Gamma functions.
Finite mixtures Gaussian Profile probability function to gradation of image carries out maximal possibility estimation, and iterates to calculate, directly Maximal possibility estimation error before and after twice is less than α (precision prescribed value), and then obtains maximum a posteriori probability, and then tries to achieve just True image label, obtains target Saliency maps picture.
(3) three-dimensional space-time Markov random field model principle is as follows:
Do not consider elevation information, with reference to the multi-temporal data on the remote sensing image data and time-domain in spatial domain, set up The time-space domain Markov random field model of Multitemporal Remote Sensing Images.Three-dimensional space-time Markov model is as shown in Figure 2:For two , there is the adjoint point on the adjoint point and 18 time domains on 8 spatial domains in the point on bit image, Ma Er is described by Gibbs random fields Can husband's field distribution.
In this method, the son group potential function for defining space-time neighborhood system is:
β is current spatial domain group parameter, βt-1And βt+1Group parameter.Set up joint probability distribution function:
P(f|xs)=Pt-1(f|xs)Pt(f|xs)Pt+1(f|xs) (10)
The method for using the maximal possibility estimation in (2), is iterated calculating, obtains maximum a posteriori probability, and then obtain Correct images label.
3rd, the parallel architecture rapid extraction target theory of depth convolutional neural networks is as follows:
(1) convolutional neural networks (Convolutional Neural Networks, abbreviation CNN):
Convolutional neural networks are mainly used to recognize the X-Y scheme that displacement, scaling and other forms distort consistency, convolution Neutral net is a neutral net for multilayer, and every layer is made up of multiple two dimensional surfaces, and each plane is by multiple independent nerves Unit's composition.The general structure of convolutional neural networks is as shown in Figure 3.
The output node for rolling up basic unit is represented by:
Wherein:Current and last layer characteristic pattern is represented respectively,Represent from m-th characteristic pattern of last layer to N-th characteristic pattern volume convolution kernel of current layer,For neuron is biased, f () is signal activation function.
The output of sub-sampling node layer is represented by:
In formula, s × s is sub-sampling template yardstick,It is template weights.
The result that convolutional neural networks CNN connects output layer entirely is represented by:
(2) the parallel architecture principle of depth convolutional neural networks:
Model training method based on deep learning, is typically necessary and expends huge time overhead, to improve training Speed, using the multi-node parallel computing architecture stored based on hadoop distributed documents, as shown in Figure 4.Substantial amounts of training sample This storage is separate between sample on different memory nodes, has complete convolutional Neural net on each memory node Neutral net on network, therefore each node is only responsible for training part sample set, and node processing is once updated after completing. Sample is unidirectionally successively to carry out in each interlayer of network, with the characteristic pattern of layer, neuron and neuron weights in the training process It is separate, therefore there may be the parallel computation in convolutional neural networks of multiple samples.

Claims (5)

1. a kind of remote sensing image offshore platform automatic testing method, it is characterised in that:Specifically comprise the following steps:
Step 1, the remotely sensed image characteristic to offshore oil and gas platform multiresolution, multiple views is analyzed, by proper subspace Remote sensing images are fitted with principal component component;
Step 2, by spatial-temporal Markov random field model, improves the signal to noise ratio and signal to noise ratio of offshore platform detection, exports mesh Mark Saliency maps picture;
Step 3, builds target criteria data set, and depth convolutional neural networks are carried out to store system based on hadoop distributed documents Depth convolutional neural networks are continued tuning by the multi-node parallel framework training of system, extract the stability characteristic (quality) of extensive target, real Offshore oil and gas platform fast and accurately automatic detection in existing magnanimity remote sensing images.
2. remote sensing image offshore platform automatic testing method according to claim 1, it is characterised in that:The step 1 Specifically comprise the following steps:
Step 1.1, chooses the multidate remote sensing image collection under different resolution, multiple views;
Step 1.2, sets up ocean detection identification region priori database;
Step 1.3, is processed the input picture collection in step 1 by the priori database set up in step 2, will be distant Non- sea area information in sense data, the information in the deeper region in ocean that can not possibly carry out exploitation of offshore oil and gas are rejected, Image set after being processed;
Step 1.4, the image set to being obtained in step 3 is manually demarcated, and obtains mark remote sensing images collection;
Step 1.5, proper subspace and principal component to marking remote sensing images collection carry out simulation analysis, obtain multi-temporal remote sensing figure Image set.
3. remote sensing image offshore platform automatic testing method according to claim 1, it is characterised in that:The step 2 Specifically comprise the following steps:
Step 2.1, temporal low-pass filter is carried out to the image in image set, initializes Markov random field;
Step 2.2, according to the Multitemporal Remote Sensing Images of input, sets up three-dimensional Markov random field model, and consider remote sensing figure As grayscale distribution information meets finite mixtures Gauss model, combination condition probability is obtained;
Step 2.3, maximal possibility estimation is carried out according to the conditional probability in step 2.2, calculates Markov random field model ginseng Number;
Step 2.4, Markov random field is updated with the parameter calculated, and Ma Erke is obtained again through maximal possibility estimation Husband's random field models parameter;
Whether step 2.5, the Markov random field model parameter error calculated twice before and after contrast meets convergence;If meeting, Step 2.6 is then performed, step 2.4 is otherwise continued executing with;
Step 2.6, output target Saliency maps picture is calculated by three-dimensional space-time Markov random field model.
4. remote sensing image offshore platform automatic testing method according to claim 1, it is characterised in that:The step 3 Specifically comprise the following steps:
Step 3.1, obtains platform Sample Storehouse, and then stores on hadoop distributed file storage systems, is deposited on k node Storage Sample Storehouse subset, allows the independent training sample database of each node, initializes each parameter of convolutional neural networks;
Step 3.2, each node carries out the complete network training of Sample Storehouse subset simultaneously, obtains convolutional neural networks parameter vector, And the neural network parameter using each node is fitted overall neural network parameter;
Step 3.3, each node neural network parameter is updated with overall neural network parameter;
Step 3.4, man-machine interactively determines training effect, and persistence parameters tuning repeats step 3.2 to step 3.3, Zhi Daoxun It is experienced and worldly-wise to requiring;
Step 3.5, adds target sample, repeat step 3.2 to step 3.4;
Step 3.6, using the convolutional neural networks trained in step 3.5 in step 2.6 export target Saliency maps picture Detected, exported object detection results.
5. remote sensing image offshore platform automatic testing method according to claim 1, it is characterised in that:In step 1.2 In, longitude and latitude, ocean depth of the several databases comprising coastal waters.
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CN108009469A (en) * 2017-10-24 2018-05-08 中国科学院电子学研究所苏州研究院 A kind of offshore oil and gas detection of platform method based on structure recurrent neural network
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