Demo: Just run fitCuboid.m without any argument. Function: This program takes input of the image coordinate of the 7 corners of a cuboid, and fit a 3D cuboid, and output the new image coordinate of the corners. If changeID is 1-7, it will ignore that corner, and use the rest of the corners to estimate the result. If changeID is 8, it will use all 7 corners to fit the cuboid. Author: Jianxiong Xiao: http://mit.edu/jxiao/ Citation: Please cite the following paper if you use this code in all possible ways. @inproceedings{CuboidDetector, author = "Jianxiong Xiao and Bryan C. Russell and Antonio Torralba", title = "Localizing 3D Cuboids in Single-view Images", booktitle = "Advances in Neural Information Processing Systems (NIPS)", year = "2012", month = "December", address = "Lake Tahoe, USA" } Installation: You need to have ceres (http://code.google.com/p/ceres-solver/) installed in your machine (I only tested with version 1.3.0), and compile the mex file by running compile.m Cooridinate system: y ^ | | 2-------------7 | |\ \ | | 1-------------4 | | | | | 5 | | | \| | | 3-------------6 | | +----------------------------->x / / / L z