Add Instance Segmentation

[yuyu2172]

Visualization

• [x] vis_insntace_segmentation (#541)

Datasets

• [x] COCOInstanceSegmentationDataset (draft) (#547) (#665)
• [x] VOCInstanceSegmentationDataset (#540)
• [x] SBDInstanceSegmentationDataset (#540)
• [x] assert_is_instance_segmentation_dataset (#540)

Evaluation

• [x] eval_instance_segmentation_coco (draft, test) (#671)
• [x] InstanceSegmentationCOCOEvaluator (#674)
• [x] eval_instance_segmentation_voc (#554)
• [x] InstanceSegmentationVOCEvaluator (#609)

Model

• [x] FCISResnet101 (inference) (#568)
• [x] FCISResnet101 (training) (#620)
• [ ] MaskRCNNResnet50 (inference) (ref)
• [ ] MaskRCNNResnet50 (training) (ref)
• [x] MaskRCNNResnet101FPN (inference) (mask-rcnn ref, fpn ref)
• [x] MaskRCNNResnet101FPN (training)(mask-rcnn ref, fpn ref)
• [x] PSRoiPooling2D (#545)
• [x] ROIAlign2D (https://github.com/chainer/chainer/pull/5070)
• [x] mask_voting (#568)
• [x] FPN (ref)
• [x] batched rpn (ref)
• [x] assert_is_instance_segmentation_link (#568)

References

https://github.com/knorth55/chainer-fcis https://github.com/yuyu2172/coco-evaluation https://github.com/wkentaro/chainer-mask-rcnn http://github.com/Hakuyume/chainer-fpn

[23pointsNorth]

I want to also point to Mask scoring RCNN https://github.com/zjhuang22/maskscoring_rcnn/blob/master/README.md