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Directory structure
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Metadata
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Directory Structure
| Code Block | ||
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data
├── semifield-developed-images
│ ├── NC_2022-07-27
│ │ ├── NC_2022-07-27.json
│ │ │
│ │ ├── autosfm
│ │ │ ├── NC_2022-07-27_preview.png
│ │ │ ├── detections.csv
│ │ │ ├── dem
│ │ │ │ └── dem.tif
│ │ │ ├── downscaled_photos
│ │ │ │ ├── NC_1658926241.png
│ │ │ │ ├── NC_1658926255.png
│ │ │ │ └── ...
│ │ │ ├── downscaled_masks
│ │ │ │ ├── NC_1658926241_mask.png
│ │ │ │ ├── NC_1658926255_mask.png
│ │ │ │ └── ...
│ │ │ ├── ortho
│ │ │ │ └── orthomosaic.tif
│ │ │ ├── project
│ │ │ │ ├── NC_2022-07-27.psx
│ │ │ │ └── NC_2022-07-27.files
│ │ │ └── reference
│ │ │ ├── camera_reference.csv
│ │ │ ├── error_statistic.csv
│ │ │ ├── fov.csv
│ │ │ └──gcp_reference.csv
│ │ │
│ │ ├── images
│ │ │ ├── NC_1658926241.png
│ │ │ ├── NC_1658926255.png
│ │ │ └── ...
│ │ │
│ │ ├── masks
│ │ │ ├── NC_1658926241_mask.png
│ │ │ ├── NC_1658926255_mask.png
│ │ │ └── ...
│ │ │
│ │ ├── plant-detections
│ │ │ ├── NC_1658926241.csv
│ │ │ ├── NC_1658926255.csv
│ │ │ └── ...
│ │ │
│ │ ├── metadata
│ │ │ ├── NC_1658926241.json
│ │ │ ├── NC_1658926255.json
│ │ │ └── ...
│ │ │
│ │ └── metamasks
│ │ ├── semantic_masks
│ │ │ ├── NC_1658926241.png
│ │ │ ├── NC_1658926255.png
│ │ │ └── ...
│ │ └── instance_masks
│ │ ├── NC_1658926241.png
│ │ ├── NC_1658926255.png
│ │ └── ...
│ └── ...
│
├── semifield-cutouts
│ ├── NC_2022-07-27
│ │ ├── NC_1658926241_0.png
│ │ ├── NC_1658926241_0.json
│ │ ├── NC_1658926241_0.jpg
│ │ ├── NC_1658926241_0_mask.png
│ │ └── ...
│ └── ...
│
└── semifield-utils
├── MD
│ ├── shapefiles
│ │ │ ├── MD.shp
│ │ │ └── ...
│ │ └── GroundControlPoints.csv
├── NC
│ ├── shapefiles
│ │ ├── NC.shp
│ │ └── ...
│ └── GroundControlPoints.csv
└── species |
...
Metadata
Metadata refers to labels and image information
Batches
blob_home and data_root - storage location information
batch_id - unique batch identifier
upload_datetime - when image were uploaded to “uploads” blob storage
image_list - list of images contained in a single batch folder
schema_version - version of data schema used for organizing metadata
| Code Block | ||
|---|---|---|
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{
"blob_home": "data",
"data_root": "semifield-developed-images",
"batch_id": "NC_2022-08-05",
"upload_datetime": "2022-08-19_21:28:37",
"image_list": [
"images/NC_1659710908.jpg",
"images/NC_1659711200.jpg",
"images/NC_1659706234.jpg",
...
"images/NC_1659709264.jpg",
"images/NC_1659715086.jpg",
"images/NC_1659706245.jpg"
],
"schema_version": "1.0"
} |
Images - general
blob_home and data_root - storage location information
batch_id - unique batch identifier
image_id - unique image id comprised of state abbreviation and UNIX timestamp
image_path - Image filename with a single parent directory
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_ |
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growth_stage - estimated growth stage based on planting date
width and height - image height and width in pixels. May be downscaled as a result of autosfm; however, image in the “images”directory are full sized images. See fullres_width and fullres_height
exif_meta
...
info |
...
cutout_ids
bboxes
fullres_height
fullres_width
fullres_width
| Code Block | ||
|---|---|---|
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{
"blob_home": "data",
"data_root": "semifield-developed-images",
"batch_id": "NC_2022-07-27",
"image_id": "NC_1658926241",
"image_path": "images/NC_1658926241.jpg",
"plant_date": "2022-06-09",
"growth_stage": "vegetative",
"width": 4780,
"height": 3184,
"exif_meta": { ... },
"camera_info": { ... },
"cutout_ids": [ ... ],
"bboxes": [ ... ],
"fullres_height": 6368,
"fullres_width": 9560,
"schema_version": "1.0"
} |
Images - Exif
Uses Exif-Py
pip install exifread
Technical tag information can be found here
| Code Block | ||
|---|---|---|
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"exif_meta": {
"ImageWidth": 9560,
"ImageLength": 6368,
"BitsPerSample": 8,
"Compression": 1,
"PhotometricInterpretation": 2,
"Make": "SONY",
"Model": "ILCE-7RM4",
"Orientation": 1,
"SamplesPerPixel": 3,
"XResolution": "300",
"YResolution": "300",
"PlanarConfiguration": 1,
"ResolutionUnit": 2,
"Software": "RawTherapee 5.8",
"DateTime": "2022:07:27 08:49:15",
"Rating": 0,
"ExifOffset": 4449,
"ExposureTime": "1/200",
"FNumber": "10",
"ExposureProgram": 1,
"ISOSpeedRatings": 100,
"RecommendedExposureIndex": 100,
"ExifVersion": [
48,
50,
51,
49
],
"DateTimeOriginal": "2022:07:27 08:49:15",
"DateTimeDigitized": "2022:07:27 08:49:15",
"BrightnessValue": "9207/1280",
"ExposureBiasValue": "0",
"MaxApertureValue": "217/128",
"MeteringMode": 5,
"LightSource": 0,
"Flash": 16,
"FocalLength": "55",
"FileSource": 3,
"SceneType": 1,
"CustomRendered": 0,
"ExposureMode": 1,
"WhiteBalance": 0,
"DigitalZoomRatio": "1",
"FocalLengthIn35mmFilm": 55,
"SceneCaptureType": 0,
"Contrast": 0,
"Saturation": 0,
"Sharpness": 0,
"LensSpecification": [
"55",
"55",
"9/5",
"9/5"
],
"LensModel": "FE 55mm F1.8 ZA",
"BodySerialNumber": null,
"MakerNote": null,
"ImageDescription": " ",
"UserComment": null,
"ApplicationNotes": null,
"Tag": null,
"SubIFDs": 4450
} |
Images - Camera Info
camera_info
camera_location
pixel_width & pixel_height
yaw, pitch, roll
focal_length
fov
is_scaleable
...
| language | json |
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Images - Cutouts
cutout_ids
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json |
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"cutout_ids": [
"NC_1658926241_0",
"NC_1658926241_1",
"NC_1658926241_2",
"NC_1658926241_3"
],Images - Bounding Boxes
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| language | json |
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Cutouts
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| language | json |
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