FreiHAND is a 3D hand pose dataset which records different hand actions performed by 32 people. For each hand image, MANO-based 3D hand pose annotations are provided. It currently contains 32,560 unique training samples and 3960 unique samples for evaluation. The training samples are recorded with a green screen background allowing for background removal. In addition, it applies three different post processing strategies to training samples for data augmentation. However, these post processing strategies are not applied to evaluation samples.
Source: Knowledge as Priors: Cross-Modal Knowledge Generalizationfor Datasets without Superior Knowledge Image Source: https://lmb.informatik.uni-freiburg.de/resources/datasets/FreihandDataset.en.html