It is a challenging task to evaluate the tumor treatment effect from CT images,because the task mainly depends on experiences of doctors.For the purpose of establishing an objective evaluation method,a 3Dtumor change detection method based on shapes and texturesis proposed in this paper.First,we reconstruct the 3Dtumor in four periods using VTK,then calculate 3Dtumor's characteristic parameters,which are used to compare with the change of cancer during four periods.The experimental result shows that shape-c...