84 Result(s)
within
English
Image Processing and Computer Vision
Signal, Image and Speech Processing
Ben Ep**er
Article
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Article
Fast multiplier bit-product matrix reduction using bit-ordering and parity generation
The “Wallace Tree/Dadda Fast Multiplier” consists of the following three steps: 1) form a bit-product matrix; 2) reduce the bit-product matrix to two rows; and 3) sum the two rows. This article describes a nov...
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VC-Dimension Analysis of Object Recognition Tasks
We analyze the amount of data needed to carry out various model-based recognition tasks in the context of a probabilistic data collection model. We focus on objects that may be described as semi-algebraic subs...
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Removing Noise and Preserving Details with Relaxed Median Filters
In this paper, a median based filter called relaxed median filter is proposed. The filter is obtained by relaxing the order statistic for pixel substitution. Noise attenuation properties as well as edge and li...
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Globally Optimal Geodesic Active Contours
An approach to optimal object segmentation in the geodesic active contour framework is presented with application to automated image segmentation. The new segmentation scheme seeks the geodesic active contour ...
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Algorithmic-level Specification and Characterization of Embedded Multimedia Applications with Design Trotter
Designing embedded systems is a challenging task during which wrong choices can lead to extremely costly re-design loops, especially when these wrong choices are made during the algorithm specification and the...
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A Geometric Approach for Regularization of the Data Term in Stereo-Vision
Every stereovision application must cope with the correspondence problem. The space of the matching variables, often consisting of spatial coordinates, intensity and disparity, is commonly referred as the data...
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Multimodal identification and localization of users in a smart environment
Detecting the location and identity of users is a first step in creating context-aware applications for technologically-endowed environments. We propose a system that makes use of motion detection, person trac...
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Edge-based Segmentation Using Robust Evolutionary Algorithm Applied to Medical Images
Although medical image segmentation is a hard task in image processing, it is possible to reduce its complexity by considering it as an optimization problem. This paper presents a robust evolutionary algorithm...
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A Geometric Framework and a New Criterion in Optical Flow Modeling
We evaluate the dense optical flow between two frames via variational approach. In this paper, a new framework for deriving the regularization term is introduced giving a geometric insight into the action of a...
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Open AccessLeakage-Aware Multiprocessor Scheduling
When peak performance is unnecessary, Dynamic Voltage Scaling (DVS) can be used to reduce the dynamic power consumption of embedded multiprocessors. In future technologies, however, static power consumption du...
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Open AccessInstruction-Level Fault Tolerance Configurability
Due to modern technology trends such as decreasing feature sizes and lower voltage levels, fault tolerance (FT) is becoming increasingly important in computing systems. Several schemes have been proposed to en...
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Open AccessParallel Scalability of Video Decoders
An important question is whether emerging and future applications exhibit sufficient parallelism, in particular thread-level parallelism, to exploit the large numbers of cores future chip multiprocessors (CMPs...
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Watermarking 3D models using spectral mesh compression
We propose a robust and imperceptible spectral watermarking method for high rate embedding of a watermark into 3D polygonal meshes. Our approach consists of four main steps: (1) the mesh is partitioned into sm...
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Compiling for Reduced Bit-Width Queue Processors
Embedded systems are characterized by the requirement of demanding small memory footprint code. A popular architectural modification to improve code density in RISC embedded processors is to use a reduced bit-...
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Analytic threshold calculation of frequency estimation for OFDM communication
In this paper, we introduce an improved expression for the normalized variance of a frequency offset estimator, which successfully estimates the actual behavior of the normalized variance of the frequency offs...
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Video watermarking using wavelet transform and tensor algebra
We present a robust, hybrid non-blind MPEG video watermarking technique based on a high-order tensor singular value decomposition and the discrete wavelet transform (DWT). The core idea behind our proposed tec...
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Automatic recognition of woven fabrics based on texture and using SVM
This paper proposes the recognition and classification of three dominant patterns of woven fabrics such as twill, satin and plain. The proposed classifier is based on the texture analysis of woven fabric image...
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Xetal-II: A Low-Power Massively-Parallel Processor for Video Scene Analysis
A processor architecture combining high-performance and low-power is presented. A prototype chip, Xetal-II, has been realized in 90 nm CMOS technology based on the proposed architecture. Recent experimental re...
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Multivariate kernel diffusion for surface denoising
In this paper, we introduce a 3D mesh denoising method based on kernel density estimation. The proposed approach is able to reduce the over-smoothing effect and effectively remove undesirable noise while prese...
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Reduction of musical residual noise using perceptual tools with classic speech denoising techniques
Single channel enhancement techniques based on short-time spectral amplitude (STSA) estimation have the major drawback of generating an artificial and annoying residual noise with musical character, due mainly...
