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Salient object detection aims to detect the attractive objects on images and videos. In this paper, we propose a novel salient object detection method for videos based on cross-frame cellular automata. Given a video, we first represent the video frames with super-pixels, and construct a saliency propagation network among super-pixels within a frame and between adjacent frames based on their appearance...
Recent advances in salient object detection in images have achieved obvious performance in various multimedia applications, but efficient salient object detection in videos is still a challenging problem. In this paper, we propose a novel salient object detection method based on spatio-temporal difference and coherence of video content. Firstly, we initialize the saliency map for each keyframe based...
In this paper, a novel method for embedded text segmentation is proposed. The basic idea of our method is based on two properties of embedded texts: a) the color of text pixels is subject to gaussian distribution, b) the locaal part and the global part of embedded text shares the same color distribution. Inspired by this two characteristics, we develop a two-step text segmentation approach: in the...
Human skin detection in images is desirable in many practical applications, e.g., adult-content filtering. However, existing methods are mainly pixel-based and ignore that human skin is region-based. In this paper, we introduce a successful region detector, i.e., MSER, into the skin detection by regarding the skin region as the maximally stable extremal region (MSER). We extend the original MSER to...
Many researchers have studied the issue of image defogging and enhancement, but there is no objective criterion to evaluate the defogging results. Based on the visual differences of images before and after defogging, valid edge intensity is defined to denote the detail performance of image, and color intensity in CIELAB color space is defined to denote the color performance of image. At last, the...
This paper proposes an approach for object tracking using particle filter based on an improved color correlogram. The improved color correlogram for representation object contains not only color information but also spatial information, which makes feature more distinctive. Instead of using the whole correlogram matrix as feature, we construct feature vector based on elements of the upper triangular...
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