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Application Specific Instructions-set Processors (ASIPs) are needed to handle the future demand of flexible and high performance computation in parallel real-time computing domain. Current ASIP design methodologies are mostly based on the accurate understanding of application source codes. Profilers can automatically analyse source codes and get interesting information from them to aid processor architecture...
In this work, the performance of a target detection algorithm to be used against maritime platforms is evaluated in real-time. The software developed in this work includes an infrared (IR) Scene Generator Software, a Heat Transfer Software, an IR Sensor Model Software and a Target Detection Software. In order to enable all software components to operate in real time for large format images, the routines...
This paper deals with the design and adaptation of the response displayed by an interactive photo frame application. The user of the system is monitored with a camera, and based on the user's facial expressions and activity levels, the system selects its response, and in time, fine-tunes it to the particular user. A user study is conducted showing that the user adaptation significantly increases the...
Model driven development (MDD) is on the rise in software engineering and no more so than in the realm of realtime and embedded systems. Being able to leverage the code generation and validation techniques made available through MDD is worth exploring, and is a large area of focus in academic and industrial research. However given the iterative nature of MDD, the evolution of models causes test case...
Multimedia services have become a dominant part of the network and content provider's service portfolio. A formal modeling methodology for video quality assessment not only affords the providers a clear cause-effect management view of their services, but also helps to guide management and planning operations. We examine the relation between network performance and perceived video quality through VIDAR,...
Atmospheric effects are one of the important factors that affect the physical realism of the infrared (IR) scene generators. IR scene generators obtained by OpenGL library are used in the applications where performance is critical. Modeling atmospheric effects in the IR band using OpenGL's fog model approach is found in the literature. However, the related fog model needs parameters that are independent...
In this paper, we present a new pixel-level scene model for segmenting video into foreground and background structure. The design of the model is largely influenced by several recently reported stochastic background models that have been shown to significantly outperform traditional deterministic techniques. In contrast to existing nonparametric scene models, we propose a learning algorithm that integrates...
Due to increased on-chip power density, multi-core systems face various thermal issues. In particular, exceeding a certain threshold temperature can reduce the system's performance and reliability. Therefore, when designing a real-time application with non-deterministic workload, the designer has to be aware of the maximum possible temperature of the system. This paper proposes an analytic method...
Several recent works consider the problem of temperature-constrained scheduling of jobs. In such attempts, speed of the processor and the execution of jobs is software-controlled such that temperature and performance constraints are met. An alternative approach is to use measurements from temperature sensors to actuate the speed of the processor as a feedback control loop. Though such a solution explicitly...
In order to reduce the development complexities of Distributed Embedded Real-Time Systems (DERTS), new software engineering methods and techniques are always adopted. The use of Service Orientated Computing (SOC) and the Unified Modeling Language (UML) for DERTS development is part of this trend. There exists a number of UML profiles for embedded, real-time and SOC separately. However, a holistic...
Based on the Instantaneous Stopped Delay (ISD), this paper proposed a novel closed-loop feedback signal control strategy, which takes the total amount of ISD (ISD Total) as input detector data for measurement frame-by-frame in traffic flow video, and realizes real-time switches of the signal status when the amount reaches the threshold, and adaptively distributes the green interval to the most needed...
This paper presents a technique to detect the moving objects quickly and accurately by using a background subtraction algorithm called RaBS (Rapid Background Subtraction). The aim of RaBS is to distinguish between moving objects (referred as foreground) from the static one (referred as background) rapidly and efficiently. RaBS constructs for each pixel, a pixel model which is a collection of background...
In this paper, an advanced distributed real-time platform named Real-Time Laboratory (RT-LAB) is introduced to implement the modeling and simulation of a wind farm. First, a simplified wind farm model based on squirrel-cage induction generator (SCIG) is built in MATLABTM/Simulink environment. This model is then transformed to be suitable for the real-time operation mode in RT-LAB environment according...
In many virtual reality (VR) simulation and training applications, it is desirable and even critical to have computer controlled animal characters that can behave with a high degree of realism. The realism can be measured in two aspects. One is behavioral realism, or how real the characters act and respond to the commands and environments. The other aspect is visual realism.
Fast and accurate simulation of 3D soft objects is important to virtual environment and reality. Simulating 3D deformation of large model in real-time is a challenging problem as it is very computation-demanding involving intensive matrix-based operation of large scale. Reduction techniques, consequently flourish where the dynamic is computed within a subspace of much smaller size with accuracy loss...
The following article presents an application for the real-time simulation of blood vessels and connective tissue. The focus lies on collision handling between vessels. The stability of the methods is demonstrated by pulling two vessels together.
Mass traffic evacuations during Hurricanes Rita and Katrina demonstrated limitations of static planning-based evacuation models based on data from historical events. Evacuation dynamics are complex due to the number of people and vehicles, road networks, the uncertainty and perception of the event, public safety advisories, and human decisions regarding evacuation routes and behaviors. We describe...
Owed to its regular structure and rich interweaving, facilitating simple and efficient dissemination and aggregation of data, the hypercube is an effective and popular interconnection network for parallel and distributed computing. Its short paths make it suitable for latency critical real-time applications such as live streaming or estimation of system state vectors, including object tracking or...
In order to compete in the global market, engineering organizations are under increasing pressure to design, develop, and deploy products in the market place as quickly as possible with first time quality. In order to achieve these objectives, it is necessary to streamline the design and development process, namely, “transfer of analytical design of Intelligence to Mechatronics intelligence” in an...
This paper develops a framework to analyze the latency and delay composition of workflows in a real-time networked aggregation system. These workflows are characterized by different sensor inputs that are processed along parallel branches that eventually merge or fuse to compute the aggregation result. The results for each flow must be produced within certain end-to-end deadlines or else the information...
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