Pami 2013 article

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Pami 2013 article

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Infinitesimal Plane-Based Pose Estimation

Holistically-Nested Edge Detection Abstract: We develop a new edge detection algorithm that addresses two critical issues in this long-standing vision problem: 1 holistic image training, and 2 multi-scale feature learning. Our proposed method, holistically-nested edge detection HEDturns pixel-wise edge classification into image-to-image prediction by means of a deep learning model that leverages fully convolutional neural networks and deeply-supervised nets.

HED automatically learns rich hierarchical representations guided by deep supervision on side responses that are crucially important in order to approach the human ability to resolve the challenging ambiguity in edge and object boundary detection.

pami 2013 article

Article :. DOI: Need Help?This paper presents an approach for text detection and recognition in scene images. The main contribution of this paper is to demonstrate that the colour information within the images if efficiently exploited is good enough to identify text regions from the surrounding noise.

In the same way, the colour information present in character and word images can be used to achieve significant performance improvement in the recognition of characters and words. The proposed pipeline makes use of the colour information and low-level image processing operations to enhance text information that improves the overall performance of text detection and recognition in the wild. The proposed method offers two main advantages.

First, it enhances the text regions up to a level of clarity where a simple off-the-shelf feature representation and classification method achieves state-of-the-art recognition performance. Second, the proposed framework is computationally fast as compared to other text detection and recognition techniques that offer good accuracy at the cost of significantly high latency.

This is a preview of subscription content, log in to check access. Rent this article via DeepDyve. Lienhart, R. Fraz, M. Imaging 22 4 Sarfraz, M.

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pami 2013 article

Huang, W. In: ICCV Neumann, L. Ezaki, N. Pattern Recognit. Lucas, S. Epshtein, B. In: CVPR Shivakumara, P. PAMI 33 2— In: ACCV Chen, H. In: ICIP Sosa, L. Wang, K. Jain, A. Zhong, Y. PAMI 22 4— Skip to Main Content. A not-for-profit organization, IEEE is the world's largest technical professional organization dedicated to advancing technology for the benefit of humanity. Use of this web site signifies your agreement to the terms and conditions.

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Sign In. Access provided by: anon Sign Out. Most current methods build classifiers based on complex handcrafted features computed from the raw inputs. Convolutional neural networks CNNs are a type of deep model that can act directly on the raw inputs.

However, such models are currently limited to handling 2D inputs. In this paper, we develop a novel 3D CNN model for action recognition. This model extracts features from both the spatial and the temporal dimensions by performing 3D convolutions, thereby capturing the motion information encoded in multiple adjacent frames.

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The developed model generates multiple channels of information from the input frames, and the final feature representation combines information from all channels. To further boost the performance, we propose regularizing the outputs with high-level features and combining the predictions of a variety of different models. We apply the developed models to recognize human actions in the real-world environment of airport surveillance videos, and they achieve superior performance in comparison to baseline methods.

Article :. Date of Publication: 06 March DOI: Need Help?Skip to Main Content. A not-for-profit organization, IEEE is the world's largest technical professional organization dedicated to advancing technology for the benefit of humanity. Use of this web site signifies your agreement to the terms and conditions.

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Negative Binomial Process Count and Mixture Modeling Abstract: The seemingly disjoint problems of count and mixture modeling are united under the negative binomial NB process. A gamma process is employed to model the rate measure of a Poisson process, whose normalization provides a random probability measure for mixture modeling and whose marginalization leads to an NB process for count modeling.

A draw from the NB process consists of a Poisson distributed finite number of distinct atoms, each of which is associated with a logarithmic distributed number of data samples. We reveal relationships between various count- and mixture-modeling distributions and construct a Poisson-logarithmic bivariate distribution that connects the NB and Chinese restaurant table distributions.

Fundamental properties of the models are developed, and we derive efficient Bayesian inference. It is shown that with augmentation and normalization, the NB process and gamma-NB process can be reduced to the Dirichlet process and hierarchical Dirichlet process, respectively.

These relationships highlight theoretical, structural, and computational advantages of the NB process.

pami 2013 article

A variety of NB processes, including the beta-geometric, beta-NB, marked-beta-NB, marked-gamma-NB and zero-inflated-NB processes, with distinct sharing mechanisms, are also constructed. These models are applied to topic modeling, with connections made to existing algorithms under Poisson factor analysis. Example results show the importance of inferring both the NB dispersion and probability parameters. Article :. Date of Publication: 18 October Need Help?The Conference on Computer Vision and Pattern Recognition CVPR is an annual conference on computer vision and pattern recognitionwhich is regarded as one of the most important conferences in its field.

In it was also co-sponsored by University of Colorado Colorado Springs. CVPR considers a wide range of topics related to computer vision and pattern recognition—basically any topic that is extracting structures or answers from images or video or applying mathematical methods to data to extract or recognize patterns. Each year the conference has an explicit list of topics for that year. CVPR uses a multi-tier double-blind peer review process. The program chairs who cannot submit papersselect area chairs who manage the reviewers for their subset of submissions.

These awards [6] are picked by committees delegated by the program chairs of the conference. From Wikipedia, the free encyclopedia. Redirected from Longuet-Higgins Prize. This article relies too much on references to primary sources. Please improve this by adding secondary or tertiary sources. September Learn how and when to remove this template message. This section does not cite any sources.

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Please help improve this section by adding citations to reliable sources. Unsourced material may be challenged and removed. Retrieved 3 April Retrieved 22 January Image and Vision Computing.

IEEE Transactions on Pattern Analysis and Machine Intelligence (TPAMI)

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A not-for-profit organization, IEEE is the world's largest technical professional organization dedicated to advancing technology for the benefit of humanity. Use of this web site signifies your agreement to the terms and conditions.

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Access provided by: anon Sign Out. Representation Learning: A Review and New Perspectives Abstract: The success of machine learning algorithms generally depends on data representation, and we hypothesize that this is because different representations can entangle and hide more or less the different explanatory factors of variation behind the data.

Although specific domain knowledge can be used to help design representations, learning with generic priors can also be used, and the quest for AI is motivating the design of more powerful representation-learning algorithms implementing such priors.

This paper reviews recent work in the area of unsupervised feature learning and deep learning, covering advances in probabilistic models, autoencoders, manifold learning, and deep networks. This motivates longer term unanswered questions about the appropriate objectives for learning good representations, for computing representations i. Article :. Date of Publication: 07 March DOI: Need Help?Estimating the pose of a plane given a set of point correspondences is a core problem in computer vision with many applications including Augmented Reality ARcamera calibration and 3D scene reconstruction and interpretation.

Despite much progress over recent years there is still the need for a more efficient and more accurate solution, particularly in mobile applications where the run-time budget is critical.

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Our approach involves a new way to exploit redundancy in the homography coefficients. This uses the fact that when the homography is noisy it will estimate the true transform between the model plane and the image better at some regions on the plane than at others. Our method is based on locating a point where the transform is best estimated, and using only the local transformation at that point to constrain pose.

This involves solving pose with a local non-redundant 1st-order PDE. We call this framework Infinitesimal Plane-based Pose Estimation IPPEbecause one can think of it as solving pose using the transform about an infinitesimally small region on the surface.

We show experimentally that IPPE leads to very accurate pose estimates. Because IPPE is analytic it is both extremely fast and allows us to fully characterise the method in terms of degeneracies, number of returned solutions, and the geometric relationship of these solutions.

This characterisation is not possible with state-of-the-art PnP methods.

Exploiting colour information for better scene text detection and recognition

This is a preview of subscription content, log in to check access. Rent this article via DeepDyve. Ansar, A. Linear pose estimation from points or lines. Barreto, J. Automatic camera calibration applied to medical endoscopy. Bouguet, J. A camera calibration toolbox for matlab. Accessed May Brown, M. Camera-based calibration techniques for seamless multiprojector displays. Visualization and Computer Graphics11— Chen, P. Error analysis in homography estimation by first order approximation tools: A general technique.

Conference on Computer Vision and Pattern Recognition

Journal of Mathematical Imaging and Vision33— Collins, T. Single-view perspective shape-from-texture with focal length estimation: A piecewise affine approach. Dhome, M.


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