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facebookresearch / co3d

Tooling for the Common Objects In 3D dataset.
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Bugs in foreground masks #46

Closed yd-yin closed 2 years ago

yd-yin commented 2 years ago

Hi, thanks for your great work on the big real-world dataset.

However, if you look at sequence car/216_22790_47232 and other sequences, you will see that many of the foreground masks are wrongly annotated for background cars. Here, only 0038 and 0039 images are correct. cars

So the corresponding point cloud car/216_22790_47232/pointcloud.ply is incorrect, either. image

This happens in most of the sequences in car. Maybe the annotating algorithm masks several cars and you only retain one?

Will other categories be better?

davnov134 commented 2 years ago

Indeed, all reconstructions are generated using an automated algorithm (as described in the paper). We include the point_cloud_quality_score in SequenceAnnotations. Make sure to use point clouds with this score being high.

Note that we plan to release a new version very soon with better foreground masks/point clouds, stay tuned.

davnov134 commented 2 years ago

Hello, please checkout the newly released version 2 of CO3D, it contains significantly improved segmentation masks.

yd-yin commented 2 years ago

Hi, thanks for your response and your great effort on this.