IEEE Trans Image Process - A multisize superpixel approach for salient object detection based on multivariate normal distribution estimation.

Tópicos

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Resumo

This paper presents a new method for salient object detection based on a sophisticated appearance comparison of multisize superpixels. Those superpixels are modeled by multivariate normal distributions in CIE-Lab color space, which are estimated from the pixels they comprise. This fitting facilitates an efficient application of the Wasserstein distance on the Euclidean norm ( [Formula: see text]) to measure perceptual similarity between elements. Saliency is computed in two ways. On the one hand, we compute global saliency by probabilistically grouping visually similar superpixels into clusters and rate their compactness. On the other hand, we use the same distance measure to determine local center-surround contrasts between superpixels. Then, an innovative locally constrained random walk technique that considers local similarity between elements balances the saliency ratings inside probable objects and background. The results of our experiments show the robustness and efficiency of our approach against 11 recently published state-of-the-art saliency detection methods on five widely used benchmark data sets.

Resumo Limpo

paper present new method salient object detect base sophist appear comparison multis superpixel superpixel model multivari normal distribut cielab color space estim pixel compris fit facilit effici applic wasserstein distanc euclidean norm formula see text measur perceptu similar element salienc comput two way one hand comput global salienc probabilist group visual similar superpixel cluster rate compact hand use distanc measur determin local centersurround contrast superpixel innov local constrain random walk techniqu consid local similar element balanc salienc rate insid probabl object background result experi show robust effici approach recent publish stateoftheart salienc detect method five wide use benchmark data set

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