| Title | Started by | Date created | Latest post | Posts |
| NEW! Training Data is online now. Participants are approve to access training data. | JinjinGu | Jan 10, 2021 | 4 years, 9 months | 3 |
| Frequently Asked Questions. | JinjinGu | Jan 11, 2021 | 4 years, 8 months | 4 |
| Validation server is back online; the 3-4 days old hanging submissions were deleted | Radu | Feb 09, 2021 | 4 years, 8 months | 1 |
| Benchmark Results and Request for Description of Method's Detail | haomingcai | Mar 27, 2021 | 4 years, 7 months | 1 |
| I know the challengle is closed but I still want to verify the performance of my method, can I submit the new results? | shaoxiao | Sep 09, 2021 | 4 years, 1 month | 1 |
| What's next? | gjy19 | May 26, 2021 | 4 years, 5 months | 1 |
| access training data | zhumengmeng | May 07, 2021 | 4 years, 5 months | 2 |
| Any update for the challenge report? | debut_kele | Apr 16, 2021 | 4 years, 6 months | 1 |
| Dataset Metadata | alir | Apr 10, 2021 | 4 years, 6 months | 1 |
| Paper submission format. | orboai | Mar 25, 2021 | 4 years, 7 months | 2 |
| providing the benchmark results? | anse | Mar 23, 2021 | 4 years, 7 months | 2 |
| Error when submitting test score | SIA | Mar 16, 2021 | 4 years, 7 months | 3 |
| Submission issue (IQA challenge) | alir | Mar 15, 2021 | 4 years, 7 months | 2 |
| When is the real deadline for submitting a challenge paper? | Ahn | Mar 15, 2021 | 4 years, 7 months | 2 |
| NR or FR | parimalak | Mar 03, 2021 | 4 years, 7 months | 2 |
| How the metrics are calculated among the validation samples? | SunGaofeng | Mar 02, 2021 | 4 years, 7 months | 2 |
| Couldn't find NTIRE 2021 in CVPR2021 homepage | HaiYANg | Mar 01, 2021 | 4 years, 7 months | 2 |
| Should I normalize or scaling the target？ | wantsu | Feb 19, 2021 | 4 years, 7 months | 2 |
| Submission function is down? | debut_kele | Feb 06, 2021 | 4 years, 8 months | 2 |
| Hi, organizers! | yoon28 | Jan 25, 2021 | 4 years, 9 months | 5 |