Support instance segmentation on PASCAL VOC dataset. This will serve as quick examples for users to know and try the codebase.

[jbwang1997]

This issue describes the development requirement of a feature we wish to collaborate with the community. In this issue, we welcome the community developers to participate in the development of the instance segmentation task on PASCAL VOC dataset.

Steps

• Support loading instance segmentation annotations of PASCAL VOC
• Add unit tests to test the newly added codes
• Add configs with Mask R-CNN with benchmarked performance
• Prepare models based on the config
• Update README.md and metafile.yml

Resources

Mask RCNN configs at:
https://github.com/open-mmlab/mmdetection/tree/master/configs/mask_rcnn
VOCDataset:
https://github.com/open-mmlab/mmdetection/blob/master/mmdet/datasets/voc.py

Reviewers

@jbwang1997