bug when generating mask

[shi-yan]

https://github.com/ZheC/Realtime_Multi-Person_Pose_Estimation/blob/7dea8488eb7f7d16b21f7f7029b761cf49eeba49/training/genCOCOMask.m#L45

segmentation is an array, but the code only processes the first element of the array

for example:

"segmentation": [
    [329.88, 211.23, 337.63, 211.93, 341.51, 210.17, 341.86, 206.65, 340.1, 202.77, 335.52, 199.6, 335.52, 197.13, 335.52, 190.44, 339.04, 186.21, 342.57, 170.35, 345.74, 159.43, 342.57, 154.14, 340.1, 148.86, 336.93, 143.92, 337.28, 138.28, 344.68, 138.28, 340.45, 122.43, 339.75, 116.79, 334.46, 107.63, 320.37, 104.1, 325.65, 97.06, 326, 91.06, 321.77, 82.25, 316.49, 89.66, 305.21, 87.19, 304.51, 92.47, 304.16, 97.06, 305.21, 100.58, 304.16, 103.4, 292.53, 105.51, 284.42, 123.84, 278.43, 140.05, 273.14, 146.74, 273.85, 152.73, 279.49, 156.26, 281.6, 154.14, 284.07, 144.63, 289, 133, 293.23, 133.7, 294.99, 125.95, 295.35, 157.67, 312.26, 157.31, 318.96, 150.27, 335.17, 150.27, 333.76, 157.31, 324.95, 158.02, 315.43, 164.01, 309.44, 170, 306.27, 176.34, 305.56, 185.51, 310.85, 184.8, 313.67, 178.81, 312.97, 170.7, 316.14, 165.42, 320.01, 162.25, 323.18, 167.89, 327.06, 172.11, 333.4, 171.06, 330.23, 178.46, 330.58, 190.09, 329.18, 197.13, 329.18, 208.76],
    [307.1, 171.37, 309.57, 164.78, 295.02, 166.7, 296.11, 173.02, 299.68, 170.54, 306, 172.19]
],

as a result, some parts are missing from the mask:

for example, left is when I process all segments, right is the result of the current code, some legs are missing.