منابع مشابه
assessment of the efficiency of s.p.g.c refineries using network dea
data envelopment analysis (dea) is a powerful tool for measuring relative efficiency of organizational units referred to as decision making units (dmus). in most cases dmus have network structures with internal linking activities. traditional dea models, however, consider dmus as black boxes with no regard to their linking activities and therefore do not provide decision makers with the reasons...
Qualifying Exam Contour Grouping
In this paper, I review the contour grouping approaches towards segmentation of images. Classifying the existing literature into local and global methods, I show how the grouping methods have improved over time, moving from local to global and from heuristic to probabilistic. Requirements for performance evaluation of grouping algorithms are also discussed.
متن کاملEcological Statistics of Contour Grouping
The Gestalt laws of perceptual organization were originally conceived as qualitative principles, intrinsic to the brain. In this paper, we develop quantitative models for these laws based upon the statistics of natural images. In particular, we study the laws of proximity, good continuation and similarity as they relate to the perceptual organization of contours. We measure the statistical powe...
متن کاملContour Grouping with Prior Models
Conventional approaches to perceptual grouping assume little specific knowledge about the object(s) of interest. However, there are many applications in which such knowledge is available and useful. Here, we address the problem of finding the bounding contour of an object in an image when some prior knowledge about the object is available. We introduce a framework for combining prior probabilis...
متن کاملSpatiotemporal Contour Grouping Using Abstract Part Models
Part Models Pablo Sala, Diego Macrini, and Sven Dickinson 1 University of Toronto, 2 Queen’s University Abstract. In recent work [1], we introduced a framework for modelIn recent work [1], we introduced a framework for modelbased perceptual grouping and shape abstraction using a vocabulary of simple part shapes. Given a user-defined vocabulary of simple abstract parts, the framework grouped ima...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Vision
سال: 2010
ISSN: 1534-7362
DOI: 10.1167/3.9.118