This directory contains contour data extracted mostly from tomographic images. We used it to test our 3D reconstruction method. Sometimes it was a major problem to find suitable data, and by making our set accessable we hope to do an useful contribution to the development of 3D reconstruction. We think it is a good idea to test different reconstruction methods with the same data. In this way the results may be compared. Most data was extracted manually, which is a time consuming work. If you use the data in publications, please include an acknowledgement. Feedback is welcome; also we would be grateful if you could contribute with some of your own contour sets to enlarge this collection. Please send contour data, questions, remarks, etc. to the address below. Bernhard Geiger INRIA Sophia Antipolis France geiger@sophia.inria.fr Description: ============ heart ----- 29 cross-sections of a human heart. Manually extracted from MRI. From the same data set as Lung. lung ---- 34 cross-sections of lungs. Manually extracted from the same MRI data set as Heart. hip1 ---- Human hip joint and cartilage from MRI images. Manually extracted. head1 ----- 17 cross-sections of head and brain. From MRI data. torus ----- Synthetic cross-sections of a torus. Useful for accuracy tests. pelvis1 _______ 23 cross-sections of a pelvis. Manually extracted from MRI-Images. skull _____ 113 cross-sections of a skull, obtained by thresholding from the UNC Chapel Hill Volume Rendering Thest Dataset. utilities _________ Contains utilities for converting to different file formats data format: ============ We use a simple ASCII format that may be easily adapted to any other format. The contours are given by simple closed polygons. One cross-section may contain several such polygons, possibly some lying inside others. They are oriented in a way that the inside of a contour (material) is on its righthand side. The xy-coordinates are in the range of [0..512]. Example: S 23 /* number of cross-sections = 23*/ v 34 z 14.7 /* first cross-section: 34 vertices, z = 14.7 */ { /* first contour */ 246.00 164.00 /* x y coordinates */ 236.00 166.00 233.00 181.00 216.00 218.00 . . . } /* end of first contour */ { /* second contour */ . . . } /* end of second contour */ v 21 z 28.4 /* second cross-section: 21 vertices, z = 28.4 */ { . . . } etc