You can download the DCPD dataset from the following two links.

Google Drive: 
https://drive.google.com/file/d/1kkCBl6kzQfGiRN66x-n_91O05NmrW47P/view?usp=sharing

or

Baidu Netdisk:
https://pan.baidu.com/s/17HNfBaEYY5LmK_-I-zsZUg?pwd=663c