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Daisy-7 / Hi-UCD-S

A dataset for deep learning based urban semantic chang detection.
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Dataset access #9

Closed Essha123 closed 4 months ago

Essha123 commented 10 months ago

Hello, Recently, I requested to access your open source dataset. Can you please accept it. Looking forward to using your dataset.

Thank you

Essha123 commented 10 months ago

Thank you for providing the access. I have a question regarding the data. In the provided datasets in folders related to validation and test dataset, the number of images and number of labels are different. For examples in validation folder the images in T1 are 49 but the labels are 49. Can you please let me know why is that? Thank you

Daisy-7 commented 10 months ago

Please read the file named readme.txt in the dataset. The number of label files and image files are equal. There are three channels in the label file, representing t1 semantic label, t2 semantic label and change label respectively.

xbysq commented 10 months ago

Please read the file named readme.txt in the dataset. The number of label files and image files are equal. There are three channels in the label file, representing t1 semantic label, t2 semantic label and change label respectively.

Hello, I read your labeling file and all I get is something like (9, 9, 1), the semantic labels of the first time phase and the second time phase are always the same, but the change label is 1. How do you define the change?

eg: [3 3 1] [3 3 1] [3 3 1]]

...

[[5 5 1] [5 5 1] [5 5 1] ... [2 2 1] [2 2 1] [2 2 1]]

[[5 5 1] [5 5 1] [5 5 1] ... [2 2 1] [2 2 1] [2 2 1]]