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The cerebral cortex is folded into gyri and sulci in the brains of higher mammals. Quantitative study of the process by which the cortex folds during brain development is critical to a complete understanding of normal brain development and neuro-developmental disorders. In this work, we propose a new method by which to localise nonlinearities in the cortical folding process, and thereby identify regions...
Smooth orthogonal drawings were recently introduced with the view of combining two different graph drawing approaches: Orthogonal drawings and Lombardi drawings. In this paper, we focus on perfect smooth orthogonal drawings in which each edge is made of either a rectilinear segment or a circular arc. We prove that every 3-planar graph admits a planar perfect smooth orthogonal drawing. If we relax...
How to detect pedestrian faster and more accurately based on video is the key to pedestrian detection. A method of pedestrian detection based on a cascade of feature classifiers is proposed in this paper. First, according to the different features between pedestrians and non-pedestrians, several special features are selected. Second, according to AdaBoost classifier training theory, several weak classifiers...
Random projection is a tried-and-true technique in signal processing for reducing sensing complexity while maintaining acceptable performance of downstream processing tasks. In this paper, we investigate random linear projection of point clouds followed by topo-logical data analysis for computing persistence diagrams and Betti numbers. In this first empirical study of its kind in the literature, we...
Time domain synchronous orthogonal frequency division multiplexing (TDS-OFDM) outperforms the classical cyclic prefix OFDM (CP-OFDM) in higher spectral efficiency and faster synchronization. However, TDS-OFDM suffers from severe out-of-band power emission since the OFDM data block and the guard interval are two independent time-domain signals. Hence, squared root raised cosine (SRRC) filters have...
Physical verification of an integrated circuit is a crucial step before manufacturing. In order to ensure the correctness of a design regarding the whole process flow, Design Rule Checking (DRC) is mandatory. As transistor size is reduced, the number of design rules to check increases exponentially. The increasing number of metal layers and heterogeneous integration possibilities are generating rules...
Statechart diagrams are a popular modeling tool amongst designers as it provides the capabilities to model the behavior of a state-dependent system or system component. Statechart diagrams are one of the pillar diagram types of the Unified Modeling Language (UML), the de-facto modeling language for object-oriented systems, used to model requirements of a system. Although statechart diagrams have received...
Visual or graphical passwords have been proposed as possible alternatives to alphanumeric passwords. People can remember these better and for longer periods than they can alphanumeric passwords. Visual passwords can, however, not yet be readily adopted for use due to the disadvantages associated with them. There has therefore been a move in literature to discussions on efficient implementation of...
We consider the problem of target coverage in visual sensor networks with Pan-Tilt-Zoom (PTZ) cameras. The finely controllable movement in PTZ dimensions creates a large number of possible Field-of-View (FoV) settings, making it prohibitively expensive to consider them all in coverage algorithms. However, these FoVs are redundant as each group of targets is generally covered by many FoVs. Thus, an...
In a context where healthcare costs are increasing exponentially worldwide, both developed and developing countries and making e-health a priority. However, reducing the disparity in healthcare quality and delivery by way of pervasive e-health solutions remains elusive. At least in part, this is attributed to the inherent complexity that characterizes modern healthcare environments. In order to improve...
The Radio Astronomical Survey (RAS) is a collection of image cubes that represent specific regions in the sky. They are produced through an automated Data Processing Pipeline. In this process, radio astronomical signals received from a radio telescope are mapped to image cubes. Each image cube consists of thousands of two-dimensional images, each image represents the radio signals received by the...
Shape matching is a very important issue and challenging task in computer vision. In this paper, the problem of finding a matching between two shapes is addressed by establishing correspondences between two their skeleton graphs based on random walk framework. We first propose a novel skeleton graph model in which nodes represent end-nodes of skeleton while edges describe relations between two end-nodes...
In this paper we present a dynamic self reconfiguration protocol for MEMS micro robots. The protocol presented in this paper is without map of the target shape which makes it efficient and scalable. In other words, nodes do not store the positions that build the target shape. Consequently, memory usage for each node is reduced to a constant complexity. An algorithm of self-reconfiguration is deeply...
In this work, the noise generation problem due to the implementation of porous baffles as weather protection barriers on offshore oil and gas platforms is investigated. Attention is focused on the design of the experiment. A cognitive process is implemented to identify the major parameters instigating noise generation on these structures. A cognitive approach is also implemented to analyse the noise...
Positioning moving human in the video sequence of complicated environmental conditions is still a challenging task in computer vision at present, which not only needs to efficiently eliminate varieties of background interferences, but also satisfies real time request in application as well. The shape complexity is applied to position moving human in this paper. Firstly, we adopt the improved frame...
To solve complex whole-body motion planning problems in near real-time, we think it essentials to precompute as much information as possible, including our intended movements and how they affect the geometrical reasoning process. In this paper, we focus on the precomputation of the feasibility of contact transitions in the context of discrete contact planning. Our contribution is twofold: First, we...
This work introduces a residual operator called ultimate attribute leveling. We also present an efficient algorithm for ultimate attribute leveling computation by using a structure called tree of shapes. Our algorithm for computating ultimate attribute leveling is based on the fact (proved in this work) that levelings can be obtained by pruning nodes from the tree of shapes. This is a novel result,...
The essay mainly studies the algorithm for large-scale data sets, namely, part priority algorithms. None of clustering algorithm can be true of all data sets. A kind of algorithm need to be matched with the realistic demand when faced with detailed data. As to part priority clustering algorithm, firstly, delete the data of first category from the data set after finding out the original data set, then...
MEMS microrobots are low-power and low-memory capacity devices that can sense and act. One of the most difficult challenges in MEMS microrobot applications is the self-reconfiguration, especially when the efficiency, parallelism and the scalability of the algorithm are required. Self-reconfiguration with shared map does not scale. Because the map (predefined position of the target shape) consists...
Featuritis or creeping featurism is the tendency for the number of features in a product (usually software product) to rise with each release of the product. Most of the time featurism adds unnecessary complexity to a software product. Therefore, some software designers have recently embraced a minimalistic approach to creating their products by presenting users with very focused, simple software...
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