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CAMMA-public / MVOR

Multi-View Operating Room (MVOR) dataset consists of synchronized multi-view frames recorded by three RGB-D cameras in a hybrid OR during real clinical interventions. We provide camera calibration parameters, color and depth frames, human bounding boxes, and 2D/3D pose annotations. The MVOR was released in the MICCAI-LABELS 2018 workshop.

Home Page:https://arxiv.org/abs/1808.08180

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Meaning of ref_camera in annotations3D

egeozsoy opened this issue · comments

commented

The value of ref_camera in annotations3D doesn't seem to be used anywhere, but the value itself is different, sometimes 0 sometimes 1 or 2. My question is does this value have any meaning? If not, in which coordinate system are the 3d keypoint annotations?

commented

We use the extrinsic camera parameters to project the 3d poses to camera-coordinates then to image coordinates (see here, and the first camera (corresponding to id "1205220174") has been used as the reference camera with identity extrinsic matrix (see camma_mvor_2018.json["cameras_info"]['camParams']["extrinsics"]). So you are right ref_camera in annotations3D doesn't correspond to a reference camera, and we will remove the field in the subsequent release.