Robust Non-rigid Point Set Registration Using Spatially Constrained Gaussian Fields (IEEE 2017).

Robust Non-rigid Point Set Registration Using Spatially Constrained Gaussian Fields (IEEE 2017).

ABSTRACT: Estimating transformations from degraded point sets is necessary for many computer vision and pattern recognition applications. In this paper, we propose a robust nonrigid point set registration method based on spatially constrained context-aware Gaussian fields. We first construct a context-aware representation (e.g., shape context) for assignment initialization. Then we use a graph Laplacian regularized […]

Comparison Of Brain Tumor Mri Classification Methods Using Probabilis Tic Features

Comparison Of Brain Tumor Mri Classification Methods Using Probabilis Tic Features

ABSTRACT Brain tumor has remained one of the key causes of death in people of all ages. One way to increase survival rate amongst patients is to correctly diagnose cancer in its early stages. There are several classifiers which can classify cancer images with high accuracy. The goal of this paper was to present a […]

Single-View 3D Scene Reconstruction and Parsing by attribute Grammar (IEEE 2017)

Single-View 3D Scene Reconstruction and Parsing by attribute Grammar (IEEE 2017)

ABSTRACT: In this paper, we present an attribute grammar for solving two coupled tasks: i) parsing an 2D image into semantic regions; and ii) recovering the 3D scene structures of all regions. The proposed grammar consists of a set of production rules, each describing a kind of spatial relation between planar surfaces in 3D scenes. […]

Understanding Physical Safety, Security, and Privacy Concerns of People with Visual Impairments

ABSTRACT With the help of various assistive devices, people with visual impairments are able to live their lives with greater independence both online and offline. But significant work remains to understand and address their safety,security, and privacy concerns, especially in the physical, offline world. For example, people with visual impairments are particularly vulnerable to physical […]

Assessing the Feasibility of the Use of Video Motion Magnification for Measuring Microdisplacements (IEEE 2017).

Assessing the Feasibility of the Use of Video Motion Magnification for Measuring Microdisplacements (IEEE 2017).

ABSTRACT: There are different techniques for measuring microdisplacements. The purpose of this paper was to ascertain whether a method of video motion magnification (VMM) can be used for measuring such displacements. For this, standard video devices (a digital single-lens reflex camera and a webcam) were used to record subtle movements of an object, and the […]

Unsupervised Gesture Segmentation by Motion Detection of a Real-Time Data Stream

Unsupervised Gesture Segmentation by Motion Detection of a Real-Time Data Stream

ABSTRACT Continuous and real-time gesture spotting is a key factor in the development of novel human-machine interaction (HMI) modalities. Gesture recognition can be greatly improved with previous reliable segmentation. This paper introduces a new unsupervised threshold-based hand/arm gesture segmentation method to accurately divide continuous data streams into dynamic and static segments from unsegmented and unbounded […]

Improved reversible data hiding for encrypted images using full embedding strategy (IEEE 2017).

Improved reversible data hiding for encrypted images using full embedding strategy (IEEE 2017).

ABSTRACT: An improved version of LiĀ et al.‘s method of reversible data hiding of encrypted images is proposed. The original work partitions the encrypted image into two sets, and only one set is used for data embedding. After carrying out a feasibility analysis, the full embedding strategy is employed. Accordingly, the data embedding capacity is dilated. […]

A Fuzzy Model-based Integration Framework for Vision-based Intelligent Surveillance Systems

A Fuzzy Model-based Integration Framework for Vision-based Intelligent Surveillance Systems

ABSTRACT This paper addresses a framework for event decision of vision-based intelligent surveillance system based on the fuzzy model. The input probabilities of the tasks for the fuzzy system are computed using the object detector which combines a cascade support vector machine (SVM) and color probability model (CPM). The SVM is used for identifying either […]

High-Fidelity Reversible Data Hiding Using Directionally-Enclosed PredictionModulation (IEEE 2017).

High-Fidelity Reversible Data Hiding Using Directionally-Enclosed PredictionModulation (IEEE 2017).

ABSTRACT: Recently, a number of high-fidelity reversible data hiding algorithms have been developed based on predictionerror expansion (PEE) and pixel sorting. In PEE, prediction is made using either a full-enclosed or a half-enclosed predictor. While in PEE with pixel sorting, the local complexity (LC), which is usually assumed to be proportional to the magnitude of […]

Learning communities in social networks and their relationship with the MOOCs

Learning communities in social networks and their relationship with the MOOCs

ABSTRACT This article discusses how MOOC users learn and participate in cooperative environments that promote learning communities within external hypermedia environments such as the social networks. In order to develop this study, researchers analyzed the interaction of users enrolled in a course developed under the iMOOC platform, which is based on concepts like connectivism, collaborative […]