Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science

Katherine Louise Bouman

We present a framework for predicting the physical properties of moving deformable objects observed in video. We apply our framework to analyze videos of fabrics moving under various unknown wind forces, and recover two key material properties of the fabric: stiffness and mass. We extend features previously developed to compactly represent static image textures to describe video textures such as fabric motion. A discriminatively trained regression model is then used to predict the physical properties of fabric from these features. The success of our model is demonstrated on a new database of fabric videos with corresponding measured ground truth material properties that we have collected. We show that our predictions are well correlated with both measured material properties and human perception of material properties. Our contributions include: (a) a method for predicting the material properties of fabric from a video, (b) a database that can be used for training and testing algorithms for predicting fabric properties containing RGB and RGBD videos of real videos with associated material properties and rendered videos of simulated fabric with associated model parameters, and (c) a perceptual study of humans' ability to estimate the material properties of fabric from videos and images.

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