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Object tracking is a difficult task in computer vision, which is usually affected by color, surrounding illumination, variation of the object's appearance and other factors. In previous years, many algorithms can only set up fixed appearance models to track object. Recently, more and more tracking algorithms have been proposed to deal with object appearance variation and illumination change. However,...
The paper proposes a RGB channel based steganographic technique for images imparting better information security. This technique inserts the information into deeper layers of the selected RGB channel and the position is determined depending on the status of channel and value of the secret key. Pixels of the cover image are selected depending on the environment of the channels and hidden information...
The rapidly developing theory of complex networks indicates that real networks are not random. They have a large-scale architecture, governed by strict organizing principles. Recently, network theory has be en applied on ion track-based electronic structures such as the (TEMPOS (Tunable Electronic Materials with Pores in Oxide on Silicon) structures. In this work, the network theory has be en applied...
Content Addressable mode (CAM) is a Solid State recollection in which facts and data's are accessed but their content rather than physical position. It obtains input seek facts and data's (i.e.), a seek word and comes back the address of a similar phrase that is retained in CAM. In power utilization issue of view, CAM is an inefficient recollection apparatus because of aligned evaluation. Thus, robust,...
This paper explores the use of mismatch condition in speaker variability applied to Automatic Speaker Verification (ASV) defined as a classification task to decide whether a proclaimed identity is true or not. This paper proposes to model mismatch conditions in speaker variability from session to another. It was shown that the speaker recognition accuracy deteriorates when there is an acoustic mismatch...
Energy consumption was and is an interesting issue that is stills a factor in the development of Wireless Sensor Network (WSN) especially in the physical and MAC layers; it is the primary metric to design a sensor node in wireless sensor network. The introduction of the Impulse Radio Ultra Wide Band (IR-UWB) Technology in the field of WSN was promising for researchers especially for its low power...
This paper introduces an automatic method for licenses plate detection that using local corners points features, clustering and some properties of license plate. Licenses plates are rich corner point's area that can be used with some properties of license plate to locate licenses plate location. The algorithm has four stages; firstly, the quality of image is improved via preprocessing operations....
This paper addressed the analysis and design of a sliding mode observer for a class of uncertain nonlinear systems. We continue to work in [1] that proposed an approach to design the sliding mode control of same system using the control law obtained to analyze our sliding mode observer. The main idea of the paper is the development of a robust observer with respect to the uncertainties parametric...
This communication deals with the explicit scheme of robust self-tuning regulation of a class of stochastic systems, which can be described by the input-output Auto-Regressive Auto-Regressive Moving Average with exogenous (ARARMAX) mathematical model with unknown and time-varying parameters in presence of unmodelled dynamics. This explicit regulation scheme is based on the proposed modified filtering...
Sliding mode control (SMC) has been considered as an effective tool in different studies for control systems. The robustness of SMC against the disturbances and model uncertainties makes the system stable. However, the chattering phenomenon degrades the system performances, it may even lead to instability. This paper deals with the second order sliding mode the twisting and super-twisting algorithm...
Many researchers were used the additive method of digital watermarking images which we quote for example Anuradha and Rudresh Pratap Singh (2006) [1]. However, this paper proposes an additive watermarking method by invoking Particle Swarm Optimization (PSO) technique in wavelet domain to improve this scheme of watermarking. To avoid that the watermarking lose its robustness and imperceptibility and...
The biggest asset of a researcher is its Intellectual Property(IP). Of late, due to rapid technological advancement and personal motives cases where theft of intellectual property is reported have increased manifold. Taking this into consideration a robust watermark is required to be embedded into the ‘intellectual property or research work’ so that if required, theft can be easily proven in a court...
In this paper, we propose an improved SIFT algorithm based on FAST corner detection. We first estimate the level of the pyramid by the size of the image. Then, at each level, we estimate the threshold by the image content. By the threshold, we implement the FAST corner detection. At each level, the FAST corner detection, generation of SIFT descriptors and coordinate mapping are implemented by Wagner's...
The previous image quality assessment(IQA) methods request the same size of original and distorted image, not suitable for the super-resolution image. The effective of image size change has rarely been discussed. An improved reduced-reference image quality assessment (RRIQA) method based on the structural similarity image metric(SSIM) and scale invariant feature transform(SIFT) was put forward. The...
We present WebGT, the first web-based system to help users produce ground truth data for document images. This user-friendly software system helps historians and computer scientists collectively annotate historical documents. It supports real time collaboration among remote sites independent of the local operating system and also provides several novel semi-automatic tools that have proven effective...
A method of clustering ensemble is transforming the clustering ensemble problem into the clustering problem among objects in a nominal information table. The basic problem is to give a method which is used to calculate the distance between the nominal attribute value. In this paper, DILCA method is adopted to calculate the distance between the nominal attribute value. Using the correlation between...
In research of the copyright protection of digital text, according to the shortage of poor robustness and weakness of attack resistance for the existing text watermark, Chinese machine code and information gain strategy have been introduced into text zero-watermark scheme, which puts forward the text zero-watermark based on the Chinese Edit Distance, constructs the construction and detection process...
Current motion tracking systems used in games for upper limb stroke rehabilitation either use sensor based tracking systems that can be problematic for a user with an impaired upper extremity to wear or hold, or vision based tracking using cameras that are less robust and struggle to retrieve accurate three dimensional position information. The Microsoft Kinect is a low cost depth sensor that promises...
For the congestion control of the transmission control protocol (TCP) networks in presence of input saturation and the lumped uncertainty, an active queue management algorithm is proposed based on adaptive sliding mode control. One adaptive law is designed to estimate the lumped uncertainty such that the need for knowing the bound in advance is eliminated. The other adaptive law is proposed to ensure...
According to government and central bank rules and regulations of Sri Lanka, the bank notes must be changed once a pre-determined period of time. This process had been initiated recently on the Sri Lankan bank note system and had been changed into an array of new bank notes. The bank notes have been designed to the international standard and unlike the old system of notes, apart from the visual differences...
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