pvanet github: https://github.com/sanghoon/pva-faster-rcnn

PVA9.1_ImgNet_COCO_VOC0712plus_compressed.caffemodel download url: https://www.dropbox.com/s/76q7pdym70ji986/PVA9.1_ImgNet_COCO_VOC0712plus_compressed.caffemodel?dl=1