DSTL 卫星图像识别竞赛数据【Kaggle竞赛】
Data Description:
In this competition, Dstl provides you with 1km x 1km satellite images in both 3-band and 16-band formats. Your goal is to detect and classify the types of objects found in these regions.
There are two types of imagery spectral content provided in this competition. The 3-band images are the traditional RGB natural color images. The 16-band images contain spectral information by capturing wider wavelength channels. This multi-band imagery is taken from the multispectral (400 – 1040nm) and short-wave infrared (SWIR) (1195-2365nm) range. All images are in GeoTiff format and might require GeoTiff viewers (such as QGIS) to view. Please refer to our tutorial on how to programmatically view the images.
All imagery credit to: Satellite Imagery © DigitalGlobe, Inc.
Sensor : WorldView 3
Wavebands :
Panchromatic: 450-800 nm
8 Multispectral: (red, red edge, coastal, blue, green, yellow, near-IR1 and near-IR2) 400 nm - 1040 nm
8 SWIR: 1195 nm - 2365 nm
Sensor Resolution (GSD) at Nadir :
Panchromatic: 0.31m
Multispectral: 1.24 m
SWIR: Delivered at 7.5m
Dynamic Range
Panchromatic and multispectral : 11-bits per pixel
SWIR : 14-bits per pixel
In a satellite image, you will find lots of different objects like roads, buildings, vehicles, farms, trees, water ways, etc. Dstl has labeled 10 different classes:
Buildings - large building, residential, non-residential, fuel storage facility, fortified building
Misc. Manmade structures
Road
Track - poor/dirt/cart track, footpath/trail
Trees - woodland, hedgerows, groups of trees, standalone trees
Crops - contour ploughing/cropland, grain (wheat) crops, row (potatoes, turnips) crops
Waterway
Standing water
Vehicle Large - large vehicle (e.g. lorry, truck,bus), logistics vehicle
Vehicle Small - small vehicle (car, van), motorbike
Every object class is described in the form of Polygons and MultiPolygons, which are simply a list of polygons. We provide two different formats for these shapes: GeoJson and WKT. These are both open source formats for geo-spatial shapes.
Your submission will be in the WKT format.
In this dataset that we provide, we create a set of geo-coordinates that are in the range of x = [0,1] and y = [-1,0]. These coordinates are transformed such that we obscure the location of where the satellite images are taken from. The images are from the same region on Earth.
To utilize these images, we provide the grid coordinates of each image so you know how to scale them and align them with the images in pixels. You need the Xmax and Ymin for each image to do the scaling (provided in our grid_sizes.csv) Please refer to our tutorial on how to programmatically view the images.
train_wkt.csv - the WKT format of all the training labels
ImageId - ID of the image
ClassType - type of objects (1-10)
MultipolygonWKT - the labeled area, which is multipolygon geometry represented in WKT format
three_band.zip - the complete dataset of 3-band satellite images. The three bands are in the images with file name = {ImageId}.tif. MD5 = 7cf7bf17ba3fa3198a401ef67f4ef9b4
sixteen_band.zip - the complete dataset of 16-band satellite images. The 16 bands are distributed in the images with file name = {ImageId}_{A/M/P}.tif. MD5 = e2949f19a0d1102827fce35117c5f08a
grid_sizes.csv - the sizes of grids for all the images
ImageId - ID of the image
Xmax - maximum X coordinate for the image
Ymin - minimum Y coordinate for the image
sample_submission.csv - a sample submission file in the correct format
ImageId - ID of the image
ClassType - type of objects (1-10)
MultipolygonWKT - the labeled area, which is multipolygon geometry represented in WKT format
train_geojson.zip - the geojson format of all the training labels (essentially these are the same information as train_wkt.csv)
filename_to_classType = { '001_MM_L2_LARGE_BUILDING':1, '001_MM_L3_RESIDENTIAL_BUILDING':1, '001_MM_L3_NON_RESIDENTIAL_BUILDING':1, '001_MM_L5_MISC_SMALL_STRUCTURE':2, '002_TR_L3_GOOD_ROADS':3, '002_TR_L4_POOR_DIRT_CART_TRACK':4, '002_TR_L6_FOOTPATH_TRAIL':4, '006_VEG_L2_WOODLAND':5, '006_VEG_L3_HEDGEROWS':5, '006_VEG_L5_GROUP_TREES':5, '006_VEG_L5_STANDALONE_TREES':5, '007_AGR_L2_CONTOUR_PLOUGHING_CROPLAND':6, '007_AGR_L6_ROW_CROP':6, '008_WTR_L3_WATERWAY':7, '008_WTR_L2_STANDING_WATER':8, '003_VH_L4_LARGE_VEHICLE':9, '003_VH_L5_SMALL_VEHICLE':10, '003_VH_L6_MOTORBIKE':10}
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