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Table of Contents

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
languagejson
{
    "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

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

plant_date - plant date for entire batch. Does not account for replantings.

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

camera_info

cutout_ids

bboxes

fullres_height

fullres_width

fullres_width

Code Block
languagejson
{
    "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": { ... },
    
    "camerafullres_infoheight": { ... }6368,
    
    "cutoutfullres_idswidth": [ ... ]9560,
    
    "bboxes"schema_version": [ ... ],
    

    "fullres_height": 6368,
    "fullres_width": 9560,
    "schema_version": "1."1.0"
}

Images - Exif

Uses Exif-Py

pip install exifread

Technical tag information can be found here

Code Block
languagejson
    "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

Code Block
languagejson
"camera_info": {
        "camera_location": [
              -0.1992725638544925,
              9.926811159768054,
              2.130928709515993
        ],         "pixel_width":            ],
        "pixel_width": 0.0075333198937023,
        "pixel_height": 0.0075333198937023,
        "yaw": 183.89777711639093,
        "pitch": -2.3366362127596525,
        "roll": 0.7135915032770658,
        "focal_length": 8747.80961719926,
        "fov": {
              "top_left": [
                    -0.8064812117393512,
                    10.27414293412319
              ],
              "top_right": [
                    0.3552128560424488,
                    10.353294011316107
              ],
              "bottom_left": [
                    -0.7537579837514339,
                    9.50032830822
              ],
              "bottom_right": [
                 0   0.4079360840303661,
                    9.579479385412917
              ],
              "is_scaleable": true
                }
              }

Images - cutouts

cutout_ids

Code Block
languagejson
"cutout_ids": [
                "NC_1658926241_0",
                "NC_1658926241_1",
                "NC_1658926241_2",
                "NC_1658926241_3"
       ],       ]

Images - bounding boxes

bbox_id

image_id

local_centroid

local_coordinates

is_scaleable

global_centroid

global_coordinates

Code Block
languagejson
"bboxes": [
            {
              "bbox_id": "NC_1658926241_0",
              "image_id": "NC_1658926241",
              "local_centroid": [
                  0.7247684299945831,
                  0.782112181186676
              ],
              "local_coordinates": {
                  "top_left": [
                      4559.100573062897,
                      3592.980739593506
                  ],
                  "top_right": [
                      9298.47180843353,
                      3592.980739593506
                  ],
                  "bottom_left": [
                      4559.100573062897,
                      6368.0
                  ],
                  "bottom_right": [
                      9298.47180843353,
                      6368.0
                  ],
                  "is_scaleable": true
                                    },
              "global_centroid": [
                  -0.3805987383493097,
                  10.21634506227248
              ],
              "global_coordinates": {
                  "top_left": [
                      -0.1245738268094071,
                      10.015139374543459
                  ],
                  "top_right": [
                      -0.7303918468219674,
                      10.11728321515172
                  ],
                  "bottom_left": [
                      -0.07889030276824338,
                      10.4175507500015
                  ],
                  "bottom_right": [
                      -0.682307173930376,
                      10.458062046757698
                  ],
                  "is_scaleable": true
            },               "cls": {          }
      "scientific_name": "Amaranthus palmeri",      }
          "common_name]

Image - species

Code Block
languagejson
"cls": "Palmer amaranth",{
        "scientific_name": "Amaranthus palmeri",
        "USDAcommon_symbolname": "AMPAPalmer amaranth",
        "USDA_symbol": "AMPA",
        "EPPO": "AMAPA",
  
             "authority": "Watson",
 
              "collection_location": "NC",
   
            "polygon_id": ""
            },
            "is_primary": false,
            "overlapping_bbox_ids": []
        },
      
        {
            ...
        }
        
    ],

Cutouts

Cutouts - origin
}

Cutouts

Cutouts - general

Code Block
languagejson
{
    "blob_home": "data",
    "data_root": "semifield-cutouts",
    "batch_id": "NC_2022-08-05",
    "image_id": "NC_1659703400",
    "cutout_id": "NC_1659703400_0",
    "cutout_path": "NC_2022-08-05/NC_1659703400_0.png",
    "clscutout_num": {0,
        "scientificis_nameprimary": "Amaranthus palmeri",
 false,
      "common_namedatetime": "Palmer amaranth2022:08:05 08:41:41",
        "USDAextends_symbolborder": "AMPA",
   true,
    "EPPOcutout_version": "AMAPA1.0",
    "schema_version":    "authority"1.0"
}

Cutouts - properties

Code Block
languagejson
"cutout_props":
"Watson",
{
        "
collection_location
area":
"NC"
28153.0,
        "
polygon
area_
id
bbox":
"" 
95480.0,
},
     "
cutout
area_
num
convex": 50539.0,
"is_primary
    "axis_major_length":
false
248.60737102397786,
"datetime": "2022:08:05 08:41:41",
    "axis_minor_length": 212.34307812840584,
        "
cutout_props
centroid0":
{
156.52289276453664,
        "
area
centroid1":
28153
184.
0
76936738535858,
        "
area_bbox
eccentricity":
95480
0.
0
5200591323747853,
        "
area_convex
solidity":
50539
0.
0
5570549476641802,
        "
axis_major_length
perimeter":
248
1873.
60737102397786
559666716433,
        "
axis
is_
minor_length
green":
212.34307812840584
true,
        "
centroid0
green_sum":
156.52289276453664,
17637
"centroid1
},

Cutouts - species

Code Block
languagejson
"cls":
184.76936738535858,
{
        "
eccentricity
scientific_name":
0.5200591323747853
"Amaranthus palmeri",
        "
solidity
common_name":
0.5570549476641802
 "Palmer amaranth",
        "
perimeter
USDA_symbol":
1873.559666716433
"AMPA",
        "
is_green
EPPO":
true
"AMAPA",
        "
green_sum
authority":
17637 }
"Watson",
"extends_border":
true,
   
"
cutout
collection_
version
location": "
1.0
NC",
        "
schema
polygon_
version
id": "
1.0"
"
    },

Cutouts -

properties

contours

Code Block
Cutouts - speciescode
language
json

Cutouts - contours

code
"contours": {
        
    },