In this present work, a new technique for content-based image retrieval is introduced using local tetra-directional pattern. In conventional local binary pattern (LBP), each pixel of an image is changed into a specifi...
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In this present work, a new technique for content-based image retrieval is introduced using local tetra-directional pattern. In conventional local binary pattern (LBP), each pixel of an image is changed into a specific binarypattern in accordance with their relationship with neighbouring pixels. Texture feature descriptor introduced in this work differs from local binary pattern as it exploits local intensity of pixels in four directions in the neighbourhood. Also, colour feature and gray level co-occurrence matrix have been applied in this work. Median of images have also been taken under consideration to keep the edge information preserved. The proposed technique has been validated experimentally by conducting experiments on two different sets of data, viz., Corel-1K and AT&T. Performance was measured using two well-known parameters, precision and recall, and further comparison was carried with some state-of-the-art localpatterns. Comparison of results show substantial improvement in the proposed technique over existing methods.
This paper proposes the design and the implementation of an innovative algorithm for a 2-choices synchronous Brain-Computer Interface (BCI). The proposed BCI operates on signals from eight EEG channels evenly distribu...
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ISBN:
(纸本)9781728105567
This paper proposes the design and the implementation of an innovative algorithm for a 2-choices synchronous Brain-Computer Interface (BCI). The proposed BCI operates on signals from eight EEG channels evenly distributed along the sensorimotor area. The acquired EEGs are then analyzed by using a symbolization method. Typically, the symbolization includes data-analysis algorithms that translate physical processes from experimental measurements into a series of discrete symbols (e.g., bit strings). For the BCI application, the chosen symbolization algorithm is the local binary pattern (LBP). Since the selected LBP method uses binary operations for the whole processing chain (end-to-end), the complexity and the computing timing of the features extraction (FE) and real-time classification stages have been strongly reduced. Finally, a time-continuous Support Vector Machine (tcSVM) classifies the LBP-extracted features. The here proposed BCI algorithm has been validated on 3 subjects (aged 26 +/- 1), who underwent a stimulation protocol oriented to Movement-Related Potentials (MRPs) elicitation. The in-vivo validation showed how the system is able to reach an intention recognition accuracy of 85.61 +/- 1.19 %. In addition, starting from the complete data storage, the whole implemented computing chain asks, on average, for just similar to 3ms to provide the classification. As a proof of concept, the tcSVM outcomes have been used to drive, via Bluetooth, a 3D printed robotic hand.
Ground-based cloud classification is challenging due to extreme variations in the appearance of clouds under different atmospheric conditions. Texture classification techniques have recently been introduced to deal wi...
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Ground-based cloud classification is challenging due to extreme variations in the appearance of clouds under different atmospheric conditions. Texture classification techniques have recently been introduced to deal with this issue. A novel texture descriptor, the salient local binary pattern (SLBP), is proposed for ground-based cloud classification. The SLBP takes advantage of the most frequently occurring patterns (the salient patterns) to capture descriptive information. This feature makes the SLBP robust to noise. Experimental results using ground-based cloud images demonstrate that the proposed method can achieve better results than current state-of-the-art methods.
Finger Outer Knuckle (FOK) has been considered as one of the attractive biometric characteristics. A new method is proposed and called local binary patterns for FOK (LBP-FOK). It consists of two types of vectors horiz...
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The era of digitization has accelerated communication and information sharing immensely. With ever-growing digital advancements in technology and applications cybersecurity poses to be a pressing issue. The amount of ...
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Cisplatin, a widely used chemotherapeutic agent, is highly effective in treating various cancers, including ovarian and lung cancers, but it often causes ovarian tissue damage and impairs reproductive health. Exosomes...
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Cisplatin, a widely used chemotherapeutic agent, is highly effective in treating various cancers, including ovarian and lung cancers, but it often causes ovarian tissue damage and impairs reproductive health. Exosomes derived from mesenchymal stem cells are believed to possess reparative effects on such damage, as suggested by previous studies. This study aims to evaluate the reparative effects of cisplatin and exosome treatments on ovarian tissue damage through the analysis of histopathological images and machine learning (ML)-based classification techniques. Five experimental groups were examined: Control, cisplatin-treated (Cis), exosome-treated (Exo), exosome-before-cisplatin (ExoCis), and cisplatin-before-exosome (CisExo). A set of 177 local binary pattern (LBP) features were extracted from histopathological images, followed by feature selection using Lasso regression. Classification was performed using ML algorithms, including decision tree (DT), k-nearest neighbors (KNN), support vector machine (SVM), and Artificial Neural Network (ANN). The CisExo group exhibited the most homogeneous texture, suggesting effective tissue recovery, whereas the ExoCis group demonstrated greater heterogeneity, possibly indicating incomplete recovery. KNN and ANN classifiers achieved the highest accuracy, particularly in comparisons between the Control and CisExo groups, reaching an accuracy of 87%. The highest classification accuracy was observed for the Control vs. Cis groups (approximately 91%), reflecting distinct features, whereas the Control vs. Exo groups demonstrated lower accuracy (around 68%) due to feature similarity. Exosome treatments, particularly when administered post-cisplatin, significantly improve ovarian tissue recovery. This study highlights the potential of ML-based classification as a robust tool for evaluating therapeutic outcomes. Additionally, it underscores the promise of exosome therapy in mitigating chemotherapy-induced ovarian damage and preserving r
local binary pattern(LBP) is sensitive to noise. Noise-resistant LBP(NRLBP) addresses this problem by thresholding local neighboring pixels into three-valued states(i.e., 0, 1 and uncertain bits)and recovering uncerta...
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local binary pattern(LBP) is sensitive to noise. Noise-resistant LBP(NRLBP) addresses this problem by thresholding local neighboring pixels into three-valued states(i.e., 0, 1 and uncertain bits)and recovering uncertain bits via an error-correction mechanism. In this paper, we extend NRLBP to deal with color images and propose a robust color image descriptor called Color context binarypattern(CCBP). In CCBP, we employ scale context and neighbor context to progressively correct the encoded bits. First, we encode intra-channel local neighboring pixels into three-valued states in scale space and use majority voting to correct all states across scales. Then, we compute inter-channel color feature distances and correct the uncertain bits via neighboring bit propagation. Finally, we construct the image descriptor by concatenating all histograms based on the corrected binary codes. Experiments on four benchmark databases demonstrate the robustness of CCBP for color image classification under very low signal-to-noise ratio levels.
作者:
Hu, WenyuMao, ZhizhongWuhan Univ
Inst Next Generat Power Syst & Int Stand Wuhan 430072 Hubei Peoples R China Wuhan Univ
Coll Elect Engn & Automat Wuhan 430072 Hubei Peoples R China Northeastern Univ
Coll Informat Sci & Engn Shenyang 110819 Liaoning Peoples R China
According to the different material sintering conditions, the sintering conditions of alumina rotary kiln be divided into: super -heated, super -chilled, and normal. In this paper, based on local binary pattern and th...
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According to the different material sintering conditions, the sintering conditions of alumina rotary kiln be divided into: super -heated, super -chilled, and normal. In this paper, based on local binary pattern and the primary -color method, a novel feature extraction method is proposed to obtain information temperature in flame images without calibrating camera parameters. Through the analysis of the problem well as the experimental phenomena, a new classification procedure is devised: in the first step, the super chilled condition is first separated, in the second step, the normal and super -heat condition are classified. Different feature extraction methods are used in the two steps mentioned above. One is to extract the texture features of pseudo temperature images, and short -time energy is used to describe the dynamic features. other is to extract the texture features of grey -images by our improved LBP ������������������2 P ,������ , and characterize the dynamics with sample entropy and variance. Finally, experimental results show that the our feature extraction method can effectively reduce intra-class variation, increase inter -class variation and receive a high classification accuracy.
With the rapid growth of information technology, the development and implementation of copyright protection for medical images has become crucial. In this paper, we develop a distinguishable zero-watermarking algorith...
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With the rapid growth of information technology, the development and implementation of copyright protection for medical images has become crucial. In this paper, we develop a distinguishable zero-watermarking algorithm via multi-scale feature analysis for medical images. We first detect the global features of the image with speeded-up robust features (SURF) and select the feature regions from the image through texture analysis. Then, we adopt local binary pattern (LBP) to detect the local texture features of these feature areas, and perform singular value decomposition (SVD) to extract the scale features and the detail features;these features are fused to form the feature matrix, and the average hash (aHash) algorithm is applied to the feature matrix to generate the binary feature map. Finally, we perform exclusive-or (XOR) operation between the feature images and the watermark image to generate zero-watermarks, which will be stored in the copyright protection center for further copyright authentication. Experimental results show that the average NC value of the proposed algorithm reaches 0.99 under most attacks, and the average BER of similar image extraction watermark keep below 0.27, which outperforms the current state-of-the-art (SOTA) watermarking algorithms.
In deep learning, local binary patterns (LBP) are inefficient for the textural feature-based classification of the fatty liver because they lose some of the relevant features. The purpose of this study is to enhance c...
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