Local Similarity Number and its Application to Object Tracking. (29th March 2013)

• Record Type: Journal Article
• Authors: Tavakoli, Hamed Rezazadegan; Moin, M. Shahram; Heikkilä, Janne
• Is Part Of: International journal of advanced robotic systems. Volume 10:Number 3(2013)
• Publication Date: 2013-03-29
• Subjects: Mean-shift Tracking -- Saliency -- Local Binary Patterns; Robotics -- Periodicals; Robotics; Periodicals; 629.892
• DOI: 10.5772/55337
• Languages: English
• ISSNs: 1729-8806

Abstract

In this paper, we present a tracking technique utilizing a simple saliency visual descriptor. Initially, we define a visual descriptor named local similarity pattern that mimics the famous texture operator local binary patterns. The key difference is that it assigns each pixel a code based on the similarity to the neighbouring pixels. Later, we simplify this descriptor to a local saliency operator which counts the number of similar pixels in a neighbourhood. We name this operator local similarity number ( LSN ). We apply the local similarity number operator to measure the amount of saliency in a target patch and model the target. The proposed tracking algorithm uses a joint saliency-colour histogram to represent the target in a mean-shift tracking framework. We will show that the proposed saliency-colour target representation outperforms texture-colour where texture modelled by local binary patterns and colour target representation techniques are used.