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Table 2 Summary of the manual counting of ears of winter wheat at the Xuchang and Yuanyang experimental sites

From: Wheat ear counting using K-means clustering segmentation and convolutional neural network

Sites Data set Samples size Min Mean Max Range SD CV (%)
Xuchang Test 60 166 250 357 191 43 17
May 6 10 173 239 309 136 47 20
May 14 10 137 195 232 95 30 15
May 16 10 251 291 326 75 26 9
May 20 10 194 233 275 81 29 13
All date 40 137 240 326 189 48 20
UAV 20 117 176 255 138 43 24
Yuanyang SM159 5 274 315 367 93 33 11
XN20 5 316 346 387 71 27 8
XN511 5 265 322 362 97 39 12
YM11 5 289 318 360 71 27 8
ZM119 5 219 254 271 52 23 9
ZM136 5 276 301 320 44 16 5
ZM158 5 220 250 285 65 27 11
ZM318 5 202 280 310 108 45 16
ZM32 5 265 338 378 113 44 13
ZM36 5 232 270 303 71 27 10
All cultivars 50 202 300 387 185 44 15
  All 170 117 253 387 270 58 23
  1. The cultivar image of Yuanyang was acquired on May 15, 2019, whereas the UAV image of Xuchang was acquired on May 14, 2019
  2. SD standard deviation, CV coefficient of variation