CN114005038A - Method for identifying illegal buildings near scenic spot - Google Patents
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Abstract
The invention relates to a method for identifying illegal buildings near scenic spots, which comprises the following steps: constructing a deep neural network model, and training the constructed deep neural network model; outputting the detected position area of each suspected violation building and the road segmentation mask of the road section to be detected of the target road by the trained deep neural network model; calculating the area of each suspected violation building and the distance between each suspected violation building and the road section to be detected of the target road; and presetting a distance discrimination threshold, and if the distance calculation value between the suspected violation building and the road section to be detected of the target road is smaller than the preset distance discrimination threshold for each suspected violation building, judging the suspected violation building as the violation building. The invention has the advantages of automatically identifying the illegal buildings, improving the identification accuracy of the illegal buildings, reducing the participation of manpower and accelerating the identification efficiency so as to facilitate the on-site confirmation and supervision of patrolmen.
Description
Technical Field
The invention relates to a method for identifying illegal buildings near scenic spots.
Background
The traditional monitoring and management of illegal buildings near the scenic spot mainly depends on the report, discovery and confirmation of the masses, and the illegal buildings are forbidden and cannot be discovered in time, so that the development and construction of the urban scenic spot are hindered. Some methods identify the roadside illegal buildings by analyzing the road images, but the existing identification methods compare the acquired images with the original historical images one by one, and the identification methods need to repeatedly call the historical images, mostly need to combine manpower for identification and detection, consume resources and reduce efficiency.
Disclosure of Invention
The invention aims to provide a method for identifying illegal buildings near scenic spots, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a method for identifying illegal buildings near a scenic spot comprises the following steps:
constructing a deep neural network model, and training the constructed deep neural network model until the deep neural network model is trained to preset target parameters;
outputting the detected position area of each suspected violation building and the road segmentation mask of the road section to be detected of the target road by the trained deep neural network model; calculating the area of each suspected violation building and the distance between each suspected violation building and the road section to be detected of the target road; and presetting a distance discrimination threshold, and if the distance calculation value between the suspected violation building and the road section to be detected of the target road is smaller than the preset distance discrimination threshold for each suspected violation building, judging the suspected violation building as the violation building.
As a further scheme of the invention: the constructed deep neural network model comprises three modules, namely a road segmentation module, a violation building detection module and a fusion ranging module.
As a further scheme of the invention: the method for processing the original image by the road segmentation module comprises the following steps:
carrying out first vector convolution operation on the original image, and reducing the original image into 1/2 after pooling;
carrying out second vector convolution operation on the image, and reducing the image into 1/4 after pooling;
performing vector convolution operation and pooling for the third time on the image, reducing the image into 1/8 parts of the original image, and keeping the pooled feature map;
performing fourth vector convolution operation and pooling on the image, reducing the image to 1/16 of the original image, and keeping a pooled feature map;
and performing fifth vector convolution operation and pooling on the image, reducing the image into 1/32 of the original image, changing the full connection in the original CNN convolutional neural network operation into sixth vector convolution operation and seventh vector convolution operation, changing the number of feature maps of the image into 1/32 of the original image, obtaining an image heat map with a 1/32-size heat map, a 1/16-size feature map and a 1/8-size feature map, performing an up-sampling process on the 1/32-size heat map, and performing deconvolution on the image from the fifth vector convolution operation to the first vector convolution operation to supplement details.
As a further scheme of the invention: the method for processing the image by the illegal building detection module comprises the following steps:
using yolov3 object detection technical feature extractor Darknet-53, wherein the main structures of 53 convolutional layers are DBL, res1, res2, res8, res8 and res4 in sequence, wherein DBL comprises convolutional layers, batch standardization and activation functions LeakyReLU, res1 comprises zero filling layers, DBL layers and 1 res unit layer, one res unit comprises two DBLs, res2 comprises a zero filling layer, a DBL layer and 2 res unit layers, res8 comprises a zero filling layer, a DBL layer and 8 res unit layers, and res4 comprises a zero filling layer, a DBL layer and 4 res unit layers;
res4 in Darknet-53 is output and connected with 5 DBLs, and after output, y1 is output after 1 DBL and 1 convolutional layer are obtained;
simultaneously, tensor splicing is carried out on the output through 1 DBL and upsampling and the output of the second res8 in Darknet-53, and y2 is output after 5 DBLs, 1 DBLs and convolutional layers;
meanwhile, the value after splicing and 5 DBLs is subjected to tensor splicing with the output of the 1 st res8 in Darknet-53 through 1 DBL and upsampling, and then the value after splicing is subjected to tensor splicing at the output y3 of 5 DBLs, 1 DBL and convolutional layer.
As a further scheme of the invention: the fusion ranging module determines whether the detection result is a violation building or not according to the context relationship, the distance relationship and the target size in the target detection result, so that the accuracy of target detection is improved.
As a further scheme of the invention: aerial photos of all road sections of roads near a scenic spot can be obtained in an aerial photographing mode, road picture samples of the roads near the scenic spot are obtained, pictures of suspected buildings against regulations are manually screened from the road picture samples, and the samples of the pictures against regulations are formed and used for training of a deep neural network model.
Compared with the prior art, the invention has the beneficial effects that: the method can automatically identify the buildings against the traffic regulations, improve the identification accuracy of the buildings against the traffic regulations, reduce the participation of manpower, and accelerate the identification efficiency so as to facilitate the on-site confirmation and supervision of the patrol personnel.
The method and the device have the advantages of realizing rapid and accurate identification of buildings violating the regulations, improving the identification efficiency of buildings violating the regulations in scenic spots, being well suitable for the change of external environments such as weather and the like, having better stability, having high operation efficiency, accurate detection, labor saving and strong robustness.
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Fig. 1 is a flow chart of the identification method of illegal buildings near scenic spots of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, a method for identifying illegal buildings near a scenic spot comprises the following steps:
constructing a deep neural network model, and training the constructed deep neural network model until the deep neural network model is trained to preset target parameters;
outputting the detected position area of each suspected violation building and the road segmentation mask of the road section to be detected of the target road by the trained deep neural network model; calculating the area of each suspected violation building and the distance between each suspected violation building and the road section to be detected of the target road; and presetting a distance discrimination threshold, and if the distance calculation value between the suspected violation building and the road section to be detected of the target road is smaller than the preset distance discrimination threshold for each suspected violation building, judging the suspected violation building as the violation building.
The method comprises the steps of firstly, acquiring data, acquiring aerial photos of all road sections of roads near a scenic spot in an aerial photographing mode, obtaining road picture samples of the roads near the scenic spot, manually screening out suspected illegal buildings from the road picture samples, and forming the illegal picture samples to be used for training a deep neural network model.
As a preferred implementation mode, the constructed deep neural network model comprises three modules, namely a road segmentation module, a violation building detection module and a fusion ranging module.
The road segmentation module adopts an FCN full convolution network, the structure of which is similar to a CNN structure of a convolution neural network, and the main difference is that a full connection layer is cancelled and replaced by a convolution layer mode, and finally a heat map is output. The FCN full convolutional network converts the last three fully-connected layers into three convolutional layers in the traditional convolutional neural network CNN structure. The first 5 layers are convolutional layers, the 6 th layer and the 7 th layer are respectively one-dimensional vectors with the length of 4096, the 8 th layer is one-dimensional vectors with the length of 1000 and respectively correspond to the probabilities of 1000 different categories, the FCN full convolutional network converts the 3 layers into convolutional layers, and the sizes (number of channels, width and height) of convolutional cores are respectively (4096, 1, 1), (1000, 1, 1).
The method for processing the original image by the road segmentation module comprises the following steps:
carrying out first vector convolution operation on the original image, and reducing the original image into 1/2 after pooling;
carrying out second vector convolution operation on the image, and reducing the image into 1/4 after pooling;
performing vector convolution operation and pooling for the third time on the image, reducing the image into 1/8 parts of the original image, and keeping the pooled feature map;
performing fourth vector convolution operation and pooling on the image, reducing the image to 1/16 of the original image, and keeping a pooled feature map;
and performing fifth vector convolution operation and pooling on the image, reducing the image into 1/32 of the original image, changing the full connection in the original CNN convolutional neural network operation into sixth vector convolution operation and seventh vector convolution operation, changing the number of feature maps of the image into 1/32 of the original image, obtaining an image heat map with a 1/32-size heat map, a 1/16-size feature map and a 1/8-size feature map, performing an up-sampling process on the 1/32-size heat map, and performing deconvolution on the image from the fifth vector convolution operation to the first vector convolution operation to supplement details.
The method for processing the image by the illegal building detection module comprises the following steps:
using yolov3 object detection technical feature extractor Darknet-53, wherein the main structures of 53 convolutional layers are DBL, res1, res2, res8, res8 and res4 in sequence, wherein DBL comprises convolutional layers, batch standardization and activation functions LeakyReLU, res1 comprises zero filling layers, DBL layers and 1 res unit layer, one res unit comprises two DBLs, res2 comprises a zero filling layer, a DBL layer and 2 res unit layers, res8 comprises a zero filling layer, a DBL layer and 8 res unit layers, and res4 comprises a zero filling layer, a DBL layer and 4 res unit layers;
res4 in Darknet-53 is output and connected with 5 DBLs, and after output, y1 is output after 1 DBL and 1 convolutional layer are obtained;
simultaneously, tensor splicing is carried out on the output through 1 DBL and upsampling and the output of the second res8 in Darknet-53, and y2 is output after 5 DBLs, 1 DBLs and convolutional layers;
meanwhile, the value after splicing and 5 DBLs is subjected to tensor splicing with the output of the 1 st res8 in Darknet-53 through 1 DBL and upsampling, and then the value after splicing is subjected to tensor splicing at the output y3 of 5 DBLs, 1 DBL and convolutional layer.
As a preferred implementation mode, the fusion ranging module determines whether the detection result is a violation building or not according to the context relationship, the distance relationship and the target size in the target detection result, so that the accuracy of target detection is improved.
The method can automatically identify the buildings against the traffic regulations, improve the identification accuracy of the buildings against the traffic regulations, reduce the participation of manpower, and accelerate the identification efficiency so as to facilitate the on-site confirmation and supervision of the patrol personnel.
The method and the device have the advantages of realizing rapid and accurate identification of buildings violating the regulations, improving the identification efficiency of buildings violating the regulations in scenic spots, being well suitable for the change of external environments such as weather and the like, having better stability, having high operation efficiency, accurate detection, labor saving and strong robustness.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. A method for identifying illegal buildings near a scenic spot is characterized by comprising the following steps:
constructing a deep neural network model, and training the constructed deep neural network model until the deep neural network model is trained to preset target parameters;
outputting the detected position area of each suspected violation building and the road segmentation mask of the road section to be detected of the target road by the trained deep neural network model; calculating the area of each suspected violation building and the distance between each suspected violation building and the road section to be detected of the target road; and presetting a distance discrimination threshold, and if the distance calculation value between the suspected violation building and the road section to be detected of the target road is smaller than the preset distance discrimination threshold for each suspected violation building, judging the suspected violation building as the violation building.
2. The method of identifying illegal buildings near scenic spots according to claim 1,
the constructed deep neural network model comprises three modules, namely a road segmentation module, a violation building detection module and a fusion ranging module.
3. The method of identifying a violation building near a scenic spot as recited in claim 2,
the method for processing the original image by the road segmentation module comprises the following steps:
carrying out first vector convolution operation on the original image, and reducing the original image into 1/2 after pooling;
carrying out second vector convolution operation on the image, and reducing the image into 1/4 after pooling;
performing vector convolution operation and pooling for the third time on the image, reducing the image into 1/8 parts of the original image, and keeping the pooled feature map;
performing fourth vector convolution operation and pooling on the image, reducing the image to 1/16 of the original image, and keeping a pooled feature map;
and performing fifth vector convolution operation and pooling on the image, reducing the image into 1/32 of the original image, changing the full connection in the original CNN convolutional neural network operation into sixth vector convolution operation and seventh vector convolution operation, changing the number of feature maps of the image into 1/32 of the original image, obtaining an image heat map with a 1/32-size heat map, a 1/16-size feature map and a 1/8-size feature map, performing an up-sampling process on the 1/32-size heat map, and performing deconvolution on the image from the fifth vector convolution operation to the first vector convolution operation to supplement details.
4. The method of identifying a violation building near a scenic spot as recited in claim 2,
the method for processing the image by the illegal building detection module comprises the following steps:
using yolov3 object detection technical feature extractor Darknet-53, wherein the main structures of 53 convolutional layers are DBL, res1, res2, res8, res8 and res4 in sequence, wherein DBL comprises convolutional layers, batch standardization and activation functions LeakyReLU, res1 comprises zero filling layers, DBL layers and 1 res unit layer, one res unit comprises two DBLs, res2 comprises a zero filling layer, a DBL layer and 2 res unit layers, res8 comprises a zero filling layer, a DBL layer and 8 res unit layers, and res4 comprises a zero filling layer, a DBL layer and 4 res unit layers;
res4 in Darknet-53 is output and connected with 5 DBLs, and after output, y1 is output after 1 DBL and 1 convolutional layer are obtained;
simultaneously, tensor splicing is carried out on the output through 1 DBL and upsampling and the output of the second res8 in Darknet-53, and y2 is output after 5 DBLs, 1 DBLs and convolutional layers;
meanwhile, the value after splicing and 5 DBLs is subjected to tensor splicing with the output of the 1 st res8 in Darknet-53 through 1 DBL and upsampling, and then the value after splicing is subjected to tensor splicing at the output y3 of 5 DBLs, 1 DBL and convolutional layer.
5. The method of identifying a violation building near a scenic spot as recited in claim 2,
the fusion ranging module determines whether the detection result is a violation building or not according to the context relationship, the distance relationship and the target size in the target detection result, so that the accuracy of target detection is improved.
6. The method of identifying illegal buildings near scenic spots according to claim 1,
aerial photos of all road sections of roads near a scenic spot can be obtained in an aerial photographing mode, road picture samples of the roads near the scenic spot are obtained, pictures of suspected buildings against regulations are manually screened from the road picture samples, and the samples of the pictures against regulations are formed and used for training of a deep neural network model.
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- 2021-11-08 CN CN202111316369.XA patent/CN114005038A/en active Pending
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