语义分割公开数据集,其中train因为太大,被分成train1和train2两个部分。具体描述请参考 https://blog.csdn.net/avideointerfaces/article/details/104139298?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522160147267619195246621825%2522%252C%2522scm%2522%253A%252220140713.130102334.pc%255Fblog.%2522%257D&request_id=160147267619195246
1