Results 11 to 20 of about 71,774 (244)
Lipes Tracking Using Active Contour Method [PDF]
Engineering and Technology Journal, 2011 Speech recognition based on visual information such as the lip shape and its movement is referred to as lip reading. The visual features are derived according to the frame rate of the video sequence. The proposed work adopted in this paper based upon the
Abdul Monem S. Rahma +1 more
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Fuzzy Active Contour Model With Markov Random Field for Change Detection
IEEE Access, 2022 The traditional active contour models are sensitive to the speckle noise in the synthetic aperture radar (SAR) images. In this paper, the Markov random field (MRF) theory is incorporated into the fuzzy active contour model to detect the changes of ...
Fei Xie +5 more
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IEEE Transactions on Pattern Analysis and Machine Intelligence, 2008 In this paper, we propose an image segmentation technique based on augmenting the conformal (or geodesic) active contour framework with directional information. In the isotropic case, the Euclidean metric is locally multiplied by a scalar conformal factor based on image information such that the weighted length of curves lying on points of interest ...
Melonakos, John +3 more
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Harmonic Active Contours [PDF]
IEEE Transactions on Image Processing, 2014 We propose a segmentation method based on the geometric representation of images as 2-D manifolds embedded in a higher dimensional space. The segmentation is formulated as a minimization problem, where the contours are described by a level set function and the objective functional corresponds to the surface of the image manifold.
Estellers Virginia +3 more
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Applied Sciences, 2022 Underwater vision research is the foundation of marine-related disciplines. The target contour extraction is significant for target tracking and visual information mining.
Shudi Yang, Jiaxiong Wu, Zhipeng Feng
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Active Contours in the Complex Domain for Salient Object Detection
Applied Sciences, 2020 The combination of active contour models (ACMs) for both contour and salient object detection is an attractive approach for researchers in image segmentation. Existing active contour models fail when improper initialization is performed.
Umer Sadiq Khan +2 more
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Active contours without edges [PDF]
IEEE Transactions on Image Processing, 2001 We propose a new model for active contours to detect objects in a given image, based on techniques of curve evolution, Mumford-Shah (1989) functional for segmentation and level sets. Our model can detect objects whose boundaries are not necessarily defined by the gradient.
Chan, Tony F., Vese, Luminita A.
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Higher Order Active Contours [PDF]
International Journal of Computer Vision, 2006 We introduce a new class of active contour models that hold great promise for region and shape modelling, and we apply a special case of these models to the extraction of road networks from satellite and aerial imagery. The new models are arbitrary polynomial functionals on the space of boundaries, and thus greatly generalize the linear functionals ...
Rochery, M., Jermyn, I.H., Zerubia, J.
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Facial contour extraction method of underground personnel
Gong-kuang zidonghua, 2015 For low identification ratio of attendance system of coal mine caused by difficult facial contour extraction of underground personnel, a facial contour extraction method was proposed based on active contour model (Snake model) and active shape model (ASM)
NIU Yumei, CHEN Lichao, PAN Lihu
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Saliency-Driven Active Contour Model for Image Segmentation
IEEE Access, 2020 Active contour models have achieved prominent success in the area of image segmentation, allowing complex objects to be segmented from the background for further analysis.
Ehtesham Iqbal +4 more
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