Defect-free Squares

引用\[1\]: Curves and Surfaces A Bidirectional Generating Algorithm for Rational Parametric Curves(Z. Li, L. Ma)Fast Detection of the Geometric Form of Two-Dimensional Cubic Bézier Curves(S. Vincent)Exact Evaluation of Subdivision Surfaces(eigenstructures for Catmull-Clark and Loop schemes) (J. Stam)Exact Evaluation of Catmull-Clark Subdivision Surfaces near B-Spline Boundaries(D. Lacewell, B. Burley)Smooth Two-Dimensional Interpolations: A Recipe for All Polygons(E. Malsch, J. Lin, G. Dasgupta) Normal Patches / PN-Triangles(R. Stimpson)Marching Cubes(.vol files) (R. Stimpson)Coons Patches(R. Stimpson)Exact Catmull-Clark Subdivision evaluation(and mean-curvature minimization) (F. Hecht)Laplacian Surface Editing(2D curve deformation) (O. Sorkine, D. Cohen-Or, Y. Lipman, M. Alexa, C. Roessl, H.-P. Seidel)Elasticurves: Exploiting Stroke Dynamics and Inertia for the Real-time Neatening of Sketched 2D Curves(Y. Thiel, K. Singh, R. Balakrishnan) 。

引用\[2\]: Segmentation efpisoft: hierarchical mesh segmentation based on fitting primitives(M. Attene)mesh segmentation benchmark database and viewer(X. Chen, A. Golovinskiy, T. Funkhouser)Graphite(variational shape approximation,image vectorization) \[documentation wiki\] (Authors)SegMatch: Shape Segmentation and Shape Matching from Point Cloud(T. Dey, S. Goswami)ShapeAnnotatorsegmentation tool (fitting primitives, barycentric/height/integral geodesic Morse, Plumber, Lloyd clustering)(Authors)Shape Diameter Function (SDF) segmentation tool(L. Shapira) 。

引用\[3\]:DP。对于每个'#'来说，要使图美丽就要保证每个'#'的正下方到正右下都填满'#' ....#. ....#. ...... ....## .#.... -> .#..## （题解里CV过来的） ...... .##.## ...... .##### 。

问题: Defect-free Squares是什么意思？
回答: Defect-free Squares是指在一个图形中，每个'#'的正下方到正右下方都填满了'#'，从而使整个图形看起来没有缺陷。这个概念可以通过动态规划(DP)来实现，对于每个'#'，需要保证其正下方到正右下方都填满了'#'，从而形成一个完整的正方形。\[3\]
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