Folder groundtruth.zip has the data we used for our work pubslished in ICCV 2009. Each label file has 'fields'- Segmentation mask for 1-floor 2-middle wall 3-right wall 4-left wall 5-ceiling. This mask also contains occluded boundaries between walls and floor etc and is marked as if the room was empty. 'gtPolyg'- Polygons for different faces of room box 1-floor 2-middle wall 3-right wall 4-left wall 5-ceiling. 'labels'-Segmentation mask for 1-floor 2-middle wall 3-right wall 4-left wall 5-ceiling 6-object. This includes only visible support region for different walls, floor ceiling and objects. Different objects are marked as single 'object' category.