805 Result(s)
within
Ben Ep**er
English
Image Processing and Computer Vision
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Chapter and Conference Paper
Applying VC-dimension analysis to object recognition
We analyze the amount of information 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-algebr...
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Article
Optimal template matching by nonorthogonal image expansion using restoration
In this paper we present a novel approach for template matching. The basic principle is expansion matching and it entails signal expansion into a set of nonorthogonal templatesimilar basis functions. The coeff...
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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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Chapter and Conference Paper
Feature detection using oriented local energy for 3D confocal microscope images
The ability to detect features within confocal microscope images is important for the interpretation and analysis of such data. Most detectors are gradient-based, and so are sensitive to noise, and fail to acc...
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Article
Image recognition with an analog neural net chip
We developed a machine vision system around an analog neural net chip and used it in several applications. Some of them were: locating the address blocks on mail pieces, finding the identification numbers on r...
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Chapter and Conference Paper
Bounds on the Performance of Vector-Quantizers operating under Channel Errors over all Index Assignments
Vector-Quantization (VQ) is an effective and widely implemented method for low-bit-rate communication of speech and image signals. A common assumption in the design of VQ-based communication systems is that th...
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Article
FEG structures for representation and recognition of 3-D polyhedral objects
The paper proposes a fast O(n 2.5) recognition algorithm for partially occluded 3D polyhedral objects, where n is the number of the polyhedron vertices.
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Chapter and Conference Paper
Subjective contours detection
Basic visual activities are related to edge detection (motion, recognition,...). We show that there are different kinds of edges. The most known and already studied are edges due to luminance variations. After...
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Chapter and Conference Paper
Dual Graph Contraction with LEDA
Graphs are useful tools for modeling problems that occur in a variety of fields. In machine vision graph based solutions have been successfully applied to many image processing problems e.g. quad trees for ima...
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Chapter and Conference Paper
Supervised Segmentation by Region Merging
A region merging segmentation method is combined with supervised classification to delineate and categorize objects in the terrain on the basis of remotely sensed imagery. The segmentation algorithm is a hybri...
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Chapter and Conference Paper
Feature Extraction Using Fractal Codes
Fast and successful searching for an object in a multimedia database is a highly desirable functionality. Several approaches to content based retrieval for multimedia databases can be found in the literature [9,1...
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Chapter and Conference Paper
Change Detection by Classification of a Multi-temporal Image
Kee** track of changes in our environment is an important application of remote sensing. To express those changes in terms or thematic classes can be done by comparing classifications of different dates, whi...
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Chapter and Conference Paper
Evaluating the Complexity of Databases for Person Identification and Verification
Databases play an important role for the development and evaluation of methods for person identification, verification, and other tasks. Despite this fact, there exists no measure that indicates whether a give...
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Article
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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Article
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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Chapter and Conference Paper
Optimising an Evolutionary Algorithm for Scheduling
This paper examines two techniques for setting the parameters of an evolutionary Algorithm (EA). The example EA used for test purposes undertakes a simple scheduling problem. An initial version of the EA was t...
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Chapter and Conference Paper
Model Based Pose Estimator Using Linear-Programming
Given a 3D object and some measurements for points in this object, it is desired to find the 3D location of the object. A new model based pose estimator from stereo pairs based on linear programming (lp) is prese...
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Chapter and Conference Paper
Street-Based Routing Using an Evolutionary Algorithm
Much research has been carried out into solving routing problems using both Evolutionary Techniques and other methods. In this paper the authors investigate the usage of an Evolutionary Algorithms to solve the...
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Chapter and Conference Paper
Design principles for tactile interaction
Although the integration of tactile feedback within the humancomputer interface could have considerable benefits this channel of communication is often overlooked or, at most, employed on an ad hoc basis. One ...
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Chapter and Conference Paper
A Soft k-Segments Algorithm for Principal Curves
We propose a new method to find principal curves for data sets. The method repeats three steps until a stop** criterion is met. In the first step, k (unconnected) line segments are fitted on the data. The secon...
