کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
531062 | 869808 | 2013 | 11 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Perceptually motivated shape context which uses shape interiors Perceptually motivated shape context which uses shape interiors](/preview/png/531062.png)
In this paper, we identify some of the limitations of current-day shape-matching techniques. We provide examples of how contour-based shape-matching techniques cannot provide a good match for certain visually similar shapes. To overcome this limitation, we propose a perceptually motivated variant of the well-known shape context descriptor. We identify that the interior properties of the shape play an important role in object recognition and develop a descriptor that captures these interior properties. We show that our method can easily be augmented with any other shape-matching algorithm. We also show from our experiments that the use of our descriptor can significantly improve the retrieval rates.
► We suggest a need for non-contour-based shape-matching techniques.
► We propose a perceptually motivated variant of the well-known shape context descriptor.
► We present a new and simple technique for sampling points from within a shape.
► We identify the advantages of using a shape's convex hull as landmark locations.
► We show good shape retrieval performance on a widely used shape database.
Journal: Pattern Recognition - Volume 46, Issue 8, August 2013, Pages 2092–2102