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Image processing

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OPTIMIZED FLAME DETECTION USING IMAGE PROCESSING BASED TECHNIQUES
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ABSTRACT Present work is an in depth study to detect flames in video by processing the data captured by an ordinary camera. Previous vision based methods were based on color difference, motion detection of flame pixel and flame edge detection. This paper focuses

SPECTRAL IMAGE PROCESSING AND ANALYSIS OF THE ARCHIMEDES PALIMPSEST
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ABSTRACT The Archimedes Palimpsest is a 10th-century parchment manuscript that was erased in the 13th century and overwritten with a Christian prayer book. The Walters Art Museum in Baltimore, MD, USA has supervised a ten-year collaboration by conservators,

Large-Scale Automated Identification and Quality Control of Exfoliated and CVD Graphene viaImage Processing Technique
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Graphene, a monolayer of carbon atoms, is a high-interest material in the research community and semiconductor industry due to its extraordinary electronic, thermal, and mechanical properties. Graphene layer identification is very important since its intrinsic

Scanning electron microscopy of natural rubber surfaces: quantitative statistical and spectral texture analysis using digital image processing
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The approach made in this paper is to compute texture based on statistical and spectral measures for extracting quantitative features of scanning electron microscopy (SEM) images of the failure pattern of natural rubber (NR) vulcanizates subjected to tear fracture. The

Quantification of liquid water saturation in a transparent single-serpentine cathode flow channel of PEM fuel cell by using image processing
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ABSTRACT The objective of this research is to quantify the water content on the cathode side in various PEM fuel cell operations. It can be revealed by direct visualization in an operational transparent single-serpentine PEM fuel cell. Images of liquid water accumulated inside the

Exploiting text for extracting image processing resources
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ABSTRACT Much everyday knowledge about physical aspects of objects does not exist as computer data, though such computer-based knowledge will be needed to communicate with next generation voice-commanded personal robots as well in other applications

Assessment of solar irradiance on the urban fabric for the production of renewable energy using LIDAR data and image processing techniques
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A general understanding of the solar admittance and solar gains incident on the urban fabric is very useful to assess the potential implementation of renewable energies at the scale of the city. The authors propose a tool that uses Light Detection and Ranging (LIDAR) data to

Image Processing for Human Understanding in Low-visibility
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ABSTRACT Low-visibility conditions for navigation of vehicles are a frequent occurrence. Driving at night, in blizzards, in sand storms, or in fog form an obvious set of challenging conditions. Remote operation of unmanned vehicles through a camera image provides a

Development of a Parallel Image Processing Architecture in VHDL
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ABSTRACT Image processing tasks such as filtering, stereo correspondence and feature detection are inherently highly parallelisable. The use of FPGAs (Field Programmable Gate Arrays), which can be operated in highly parallel configurations, can thus be a useful

Generalized newton-type methods for energy formulations in image processing
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ABSTRACT. Many problems in image processing are addressed via the minimization of a cost functional. The most prominently used optimization technique is gradient-descent, often used due to its simplicity and applicability where other techniques, eg, those coming from

Comparison of filters used for underwater image pre-processing
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 image quality. Key words: Image processing, denoising, color enhancement, homomorphic filters, SRAD filtering, wavelet denoising, Mean Square Error , Peak Signal to Noise Ratio and elapsed time I. Introduction Underwater

Review of Biomedical Image Processing
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ABSTRACT This article is a review of the book: Biomedical Image Processing , by Thomas M. Deserno, which is published by Springer-Verlag. Salient information that will be useful to decide whether the book is relevant to topics of interest to the reader, and whether it might

Constant-working-space algorithms for image processing
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This chapter surveys recent progress in constant-working-space algorithms for problems related to image processing. An extreme case is when an input image is given as read-only memory in which reading an array element is allowed but writing any value at any array

An efficient hardware architecture without line memories for morphological image processing
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In this paper, we present a novel hardware architecture to achieve erosion and dilation with a large structuring element. We are proposing a modification of HGW algorithm with a block mirroring scheme to ease the propagation and memory access and to minimize memory

Quantifying geomembrane wrinkles using aerial photography and digital image processing
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ABSTRACT Geomembranes are highly effective barriers, and are often a key component in the design of composite landfill liner and cover systems. During installation, solar exposure causes some types of geomembrane to buckle locally upwards and form networks of

A pseudo-logarithmic image processing framework for edge detection
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The paper presents a new [pseudo-] Logarithmic Model for Image Processing (LIP), which allows the computation of gray-level addition, substraction and multiplication with scalars within a fixed gray-level range [0; D] without the use of clipping. The implementation of

An Introduction to Digital Image Processing with Matlab Notes for SCM2511 Image Processing
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As we mentioned in the preface, human beings are predominantly visual creatures: we rely heavily on our vision to make sense of the world around us. We not only look at things to identify and classify them, but we can scan for differences, and obtain an overall rough

Using Data Lineage for Sub-image Processing
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In the paper, we show that lineage data collected during the processing and analysis of datasets can be reused to perform selective reprocessing (at sub-image level) on datasets while the remainder of the dataset is untouched, a rather difficult process to automate

Tissue segmentation in medical images based on image processing chain optimization
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ABSTRACT Segmentation is a crucial task in medical image processing. The accuracy of the segmentation can directly affect other post processing tasks, such as image analysis and feature extraction. Knowledge and sample based learning approaches play a pivotal role

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blowfish algorithms-image processing

DES, AES and Blowfish: Symmetric key cryptography algorithms simulation based performance analysis
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Abstract-Security is the most challenging aspects in the internet and network applications. Internet and networks applications are growing very fast, so the importance and the value of the exchanged data over the internet or other media types are increasing. Hence the

Performance enhancement of Blowfish and CAST-128 algorithms and Security analysis of improved Blowfish algorithm using Avalanche effect
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Summary: There has been a tremendous enhancement in the field of cryptography, which tries to manipulate the plaintext so that it becomes unreadable, less prone to hacker and crackers, and again obtain the plaintext back by manipulating this unreadable text in some

Image and Text Hiding using RSA Blowfish Algorithms with Hash-Lsb Technique
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Abstract Steganography is a method of hiding secret messages in a cover object while communication takes place between sender and receiver. Security of secret or important information has always been a major issue from the past times to the current time. It has

FPGA-HARDWARE BASED DES BLOWFISH SYMMETRIC CIPHER ALGORITHMS FOR ENCRYPTION DECRYPTION OF SECURED WIRELESS DATA
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ABSTRACT: Now a days internet and wireless networks growing rapidly, information and network security becomes a vital process to protect commerce secret and evaluation privacy. Earlier security was a major issue for military applications but now a days the area of

A Comparative Study and Performance Evaluation of Cryptographic Algorithms: AES andBlowfish
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Abstract: There are many aspects of security ranging from secure commerce and payments to private communications and protecting passwords. One essential aspect for secure communications is that of secret key Cryptography. It is the automated method in which

The Comparison of Performance in Symmetric Encryption Algorithms 3DES and Blowfish
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Abstract Internet use and network applications are growing very fast, so the needs to exchange data securely over the internet or other media types are increasing. The security is the most challenging aspects in the internet and network applications. Cryptography

Comparison of Blowfish and Cast-128 Algorithms Using Encryption Quality, Key Sensitivity and Correlation Coefficient Analysis
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ABSTRACT: This paper demonstrates the performance of well known block ciphers Blowfish and Cast-128, considering different aspects of security namely, Encryption quality, Key sensitivity test and Statistical analysis. Statistical analysis is conducted using images by

Efficient Image Steganogrphic Algorithms Utilizing Transforms: Wavelet and Contourlet withBlowfish Encryption
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Abstract:Steganography is a means to hide the existence of information exchange. Using this technique the sender embeds the secret information in some other media. This is done by replacing useless data in ordinary computer files with some other secret information.

AN EFFECTIVE PERFORMANCE EVALUATION OF RC6, BLOWFISH, DES ALGORITHMS
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ABSTRACT This paper presents a rapid growth of internet applications fueled the need for securing information and computers. Encryption algorithms play vital role to secure information. This paper provides comparison of most common encryption algorithms

Band Limited POC method image processing

Finger-knuckle-print verification based on band-limited phase-only correlation
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4.2 Band-Limited Phase-Only Correlation (BLPOC) In the POC-based image matching method, all the frequency components are in- volved. However, high frequency tends to emphasize detail information and can be prone to noise.

High-resolution side-channel attack using phase-based waveform matching
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6-05, Aramaki Aza Aoba, Aoba-ku, Sendai-shi 980-8579, Japan {homma, nagasima, imai}@aoki.ecei.tohoku.ac.jp, aoki@ecei.tohoku.ac.jp 2 IBM Research, Tokyo Research Laboratory, IBM Japan, Ltd. The essence of the proposed method is to use the POC-based

A fingerprint matching algorithm using phase-only correlation
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all the bio- metric techniques, fingerprint-based identification [1] is the most popular method, which has are a number of people whose fingerprints could not be identified by the feature-based methods due to Sec- tion 3 defines a band-limited POC function for fingerprint matching

Ensemble of local and global information for finger–knuckle-print recognition
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Phase-only correlation (POC) is a classical method to this end [34]. In the literature, POC based methods have been widely used in image registration tasks [35]. Compared with the conventional POC, the band-limited phase-only correlation (BLPOC) proposed by Ito et al.

A high-accuracy stereo correspondence technique using 1D band-limited phase-only correlation
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Abstract: This paper presents a technique for high-accuracy corre- spondence search between stereo images using 1D Band-Limited Phase- Only Correlation (BLPOC). The resulting reconstruction accuracy is comparable with 2D POC-based method, and is much higher quickly align two images without the time-consuming test, and use the Band-Limited phase-only The BLPOC method is more robust to the noise and can provide a sharper to distinguish between the genuine and impostor matching than the original phase-only correlation (POC).

Overtube-balloon–assisted direct peroral cholangioscopy by using an ultra-slim upper endoscope (with videos)
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slim upper endoscopes (GIF-N230 or GIF-N260; Olympus Optical Co, Ltd, Tokyo, Japan They then performed narrow–band imaging, chromoendoscopy, and argon plasma coagulation for an intraductal clinical utility of direct POC by using a slim endoscope is limited because of

Finger vein recognition algorithm using phase only correlation
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This method is also known as band- limited POC (BLPOC) function [6]. The matching scores of the same and different finger vein images using BLPOC function are shown in Table I. For this example, the band-limit or the value of q is set to 0.1.

Limited knowledge on progestogen-only contraception and risk of venous thromboembolism
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The study was limited by the small number of cases and controls that were exposed to POCs, which is reflected by the The controls were matched to cases by five-year age bands. Currently, there are many different and more effective POC methods available than in the past. of BLPOC under different bands (J1), (b) the Equal Error Rate (ARR) of BLPOC under different bands (J1) Newborn Footprint Recognition Using Band-Limited Phase-Only Correlation the similarity measure is PSR, (b) the FRR and FAR curves of BLPOC while the band width is

Fusion of band limited phase only correlation and width centroid contour distance for finger based biometrics
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In the proposed method, Band Limited Phase Only Correlation (BLPOC) is utilized to measure the similarity of finger vein images. Unlike previous methods, BLPOC is resilient to noise, occlusions and rescaling factors; thus can enhance the performance of finger vein recognition

A fingerprint recognition algorithm using phase-based image matching for low-quality fingerprints
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Among all the biomet- ric techniques, fingerprint recognition [1] is the most popular method and is successfully used in many applications. We modify the definition of POC function to have a BLPOC (Band-Limited Phase-Only Correlation) function dedicated to fingerprint

Paging system employing delivery schedule combining and method of operation thereof
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This process is complicated by the very limited battery life of a pager which precludes it from operating continuously. that the simplex time slot used for messaging only occupies 20.32 ms of the 90 ms L-Band frame reduces US8705965 *, Jan 10, 2011, Apr 22, 2014, Hitachi, Ltd.

Method and apparatus for hybrid coding of speech at 4kbps
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Examples of dimension conversion schemes are the nonlinear scheme of Discrete All Pole (DAP) modeling [12], or the linear schemes, such as bandlimited interpolation [13], Variable Dimension The non-harmonic spectral bands can be modeled by band-limited noise, and

Enhancement of Iris Recognition System Based on Phase Only Correlation
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Furthermore, all (100%) POC peak values of the proposed method were higher than those of the method with full iris points. References [1] Putra IKGD, Erdiawan. Newborn Footprint Recognition Using Band-Limited Phase-Only Correlation. In. LTD, 1976.

Dielectric functions and electronic band structure of lead zirconate titanate thin films
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investigations have been reported.7,8 However, their spectral range was limited to the j, and Aj are the energy threshold, broadening, and amplitude, respectively, for the jth band-gap structure simple parabolic dispersion re- lations for the valence and conduction bands and was has made a survey for this technique and divided the approaches into several different categories [2]. Recently, Phase-only correlation (POC) and Band-Limited Phase-Only correlation In this paper, we also propose a method for palmprint recognition exploiting BLPOC. of palmprint for accurate matching, we employ the method described in [4]. This method defines the The translational displacement can be estimated using POC function [7]. Our observation shows that the 2D Let Fi(k1, k2) denote the band-limited frequency spectrum of fi(n1,n2).

Method and apparatus for sending additional sideband information in a codestream
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Original Assignee, Ricoh Co., Ltd. Such a computer program may be stored in a computer readable storage medium, such as, but is not limited to, any type of disk including floppy 2 only the tile height raster lines, or a band of the image, are in memory 201, not the whole image

Finger-knuckle-print recognition using BLPOC-based local block matching
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In the proposed FKP recognition algorithm, we employ BLPOC instead of POC to estimate

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