کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
444017 692846 2015 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Shape analysis based on depth-ordering
ترجمه فارسی عنوان
تجزیه و تحلیل شکل بر اساس مرتبه عمق
کلمات کلیدی
تجزیه و تحلیل شکل، عمق سفارش شکل تجزیه و تحلیل جهانی، تجزیه و تحلیل محلی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر گرافیک کامپیوتری و طراحی به کمک کامپیوتر
چکیده انگلیسی


• We propose using depth-ordering on shapes for statistical shape analysis.
• We develop an algorithm for the fast computation of band-depth for shapes as binary functions.
• We define statistical tests to detect potential global and local differences between shape populations.
• We provide the directionality of shape differences to augment local measurements.

In this paper we propose a new method for shape analysis based on the ordering of shapes using band-depth. We use this band-depth to non-parametrically define a global depth for a shape with respect to a reference population, typically consisting of normal control subjects. This allows us to globally quantify differences with respect to “normality”. Using the depth-ordering of shapes also allows the detection of localized shape differences by using α-central values of shapes. We propose permutation tests to statistically assess global and local shape differences. We further determine the directionality of shape differences (local inflation versus deflation). The method is evaluated on a synthetically generated striatum dataset, and applied to detect shape differences in the hippocampus between subjects with first-episode schizophrenia and normal controls.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Medical Image Analysis - Volume 25, Issue 1, October 2015, Pages 2–10
نویسندگان
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