ECTI Transactions on Computer and Information Technology最新文献

Model-Based Design Optimization using CDFG for Image Processing on FPGA 基于模型的CDFG FPGA图像处理优化设计

ECTI Transactions on Computer and Information Technology Pub Date : 2023-10-21 DOI: 10.37936/ecti-cit.2023174.252417

Surachate Chumpol, Panadda Solod, Krerkchai Thongnoo, Nattha Jindapetch

引用次数: 0

Optimizing Incident Detection Thresholds Using the A* Algorithm: An Enhanced Approach for the California Algorithm 使用A*算法优化事件检测阈值:加利福尼亚算法的增强方法

ECTI Transactions on Computer and Information Technology Pub Date : 2023-10-14 DOI: 10.37936/ecti-cit.2023174.251643

Korn Puangnak, Manthana Tiawongsuwan

引用次数: 0

Image Watermarking Framework using Histogram Equalization and Visual Saliency 基于直方图均衡化和视觉显著性的图像水印框架

ECTI Transactions on Computer and Information Technology Pub Date : 2023-10-07 DOI: 10.37936/ecti-cit.2023174.252375

Bishwabara Panda, Manas Ranjan Nayak, Pradeep Kumar Mallick, Abhishek Basu

{"title":"Image Watermarking Framework using Histogram Equalization and Visual Saliency","authors":"Bishwabara Panda, Manas Ranjan Nayak, Pradeep Kumar Mallick, Abhishek Basu","doi":"10.37936/ecti-cit.2023174.252375","DOIUrl":"https://doi.org/10.37936/ecti-cit.2023174.252375","url":null,"abstract":"This paper proposes a digital image watermarking strategy using histogram equalization and visual Saliency followed by LSB (Least Significant Bit) replacement for better imperceptibility with hiding capacity. With this technique, a saliency map determines lesser-observable parts of the original image and gradually implants with increasing amounts of information based on histogram equalization information. The output from saliency is the perceptible areas within an image, which is the most notable position from the perspective of vision; as a result, any changes made other than those areas will be less noticeable to viewers. Implementing the histogram method helps identify the areas where we can hide our secret information within that image. Using the LSB replacement technique, we adaptively insert our confidential data into the original image. Here, we use the saliency map to find out the non-salient region or less perceptible region to improve the imperceptibility, and the histogram equalization technique is used to maximize the hiding capacity within those less perceptible regions. So that we can improve the imperceptibility as well as the hiding capacity.","PeriodicalId":37046,"journal":{"name":"ECTI Transactions on Computer and Information Technology","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135253872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimized Selection of Motorcycle Battery Swapping Stations Under Flexible Demand by Using Distance Function And Gis Technique 基于距离函数和Gis技术的灵活需求下摩托车换电池站优化选择

ECTI Transactions on Computer and Information Technology Pub Date : 2023-09-30 DOI: 10.37936/ecti-cit.2023173.253697

Athita On-Ouen, Jirayus Arbking, Nuttaporn Phakdee

引用次数: 0

Privacy-Enhancing Data Aggregation for Big Data Analytics 增强隐私的大数据分析数据聚合

ECTI Transactions on Computer and Information Technology Pub Date : 2023-09-30 DOI: 10.37936/ecti-cit.2023173.252952

Surapon Riyana, Kittikorn Sasujit, Nigran Homdoung

引用次数: 0

Plaque Territory Detection in IVUS Images based on Concentration of Entropy and Gradient Magnitude via Spiral Random Walk-based Approach 基于熵浓度和梯度大小的螺旋随机游动IVUS图像斑块区域检测

ECTI Transactions on Computer and Information Technology Pub Date : 2023-09-02 DOI: 10.37936/ecti-cit.2023173.253328

Benchaporn Jantarakongkul, Pusit Kulkasem

{"title":"Plaque Territory Detection in IVUS Images based on Concentration of Entropy and Gradient Magnitude via Spiral Random Walk-based Approach","authors":"Benchaporn Jantarakongkul, Pusit Kulkasem","doi":"10.37936/ecti-cit.2023173.253328","DOIUrl":"https://doi.org/10.37936/ecti-cit.2023173.253328","url":null,"abstract":"This paper presents a simple and optimal approach for automatically identifying the location and size of plaque territories in IVUS images, thus improving plaque territory classification. Unlike existing circular-based algorithms, we leverage the anatomical structure of IVUS images to enhance accuracy. The adventitia, which constitutes the largest part of the image, serves as a landmark; however, its low contrast makes edge detection challenging. To address this issue, we enhance the brightness of the adventitia, identify and remove intima blobs, and accurately determine the media boundary. This aids in simplifying the calculation of plaque territory. To locate the plaque territory, we employ a spiral random walk-based approach that utilizes the concentration of entropy and gradient magnitude in the target area. Our approach outperforms existing methods, contributing to automated plaque analysis for cardiovascular disease diagnosis and treatment. The results show that the proposed approach achieves an accuracy of 0.89, precision of 0.81, recall of 0.77, and F1-Score of 0.83, respectively.","PeriodicalId":37046,"journal":{"name":"ECTI Transactions on Computer and Information Technology","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134968521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An Efficient Electrocardiography Data Compression 一种有效的心电图数据压缩方法

ECTI Transactions on Computer and Information Technology Pub Date : 2023-09-02 DOI: 10.37936/ecti-cit.2023173.253629

Passakorn Luanloet, Watcharapan Suwansantisuk, Pinit Kumhom

{"title":"An Efficient Electrocardiography Data Compression","authors":"Passakorn Luanloet, Watcharapan Suwansantisuk, Pinit Kumhom","doi":"10.37936/ecti-cit.2023173.253629","DOIUrl":"https://doi.org/10.37936/ecti-cit.2023173.253629","url":null,"abstract":"In healthcare, electrocardiography (ECG) sensors generate a large amount of heart electrical signal that must be efficiently compressed to enable fast data transfer and reduce storage costs. Existing methods for ECG data compression do not fully exploit the characteristics of ECG signals, leading to suboptimal compression. This study proposes a data compression technique for ECG data by exploiting the known characteristics of ECG signals. Our approach combines Savitzky-Golay filtering, detrending, discrete cosine transform, scalar quantization, run-length encoding, and Huffman coding for the effective compression. To optimize the compression performance, we generated quantization intervals tailored to the ECG data characteristics. The proposed method experimentally produces a high compression ratio of 127.61 for a design parameter K = 8, a minimum percentage root mean square difference of 1.03% for K = 128, and a maximum quality score (QS) of 39.78, where K is the number of quantization intervals. Moreover, we compared the proposed method to state-of-the-art methods on a widely used ECG benchmark dataset. We found that the proposed method outperforms the others in terms of the QS, which measures the overall compression-decompression ability. By enabling more storage and faster data transfer, the proposed method can facilitate the widespread use and analysis of large volumes of ECG data, thereby contributing to advances in healthcare.","PeriodicalId":37046,"journal":{"name":"ECTI Transactions on Computer and Information Technology","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134968523","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Image Steganography-based Copyright and Privacy-Protected Image Trading Systems 基于隐写术的版权和隐私保护图像交易系统

ECTI Transactions on Computer and Information Technology Pub Date : 2023-08-12 DOI: 10.37936/ecti-cit.2023173.252500

Wannida Sae-Tang, Adisorn Sirikham

{"title":"Image Steganography-based Copyright and Privacy-Protected Image Trading Systems","authors":"Wannida Sae-Tang, Adisorn Sirikham","doi":"10.37936/ecti-cit.2023173.252500","DOIUrl":"https://doi.org/10.37936/ecti-cit.2023173.252500","url":null,"abstract":"This paper proposes steganography-based copyright- and privacy-protected image trading systems using image transformation, i.e., either discrete cosine transform (DCT) or Hadamard transform (HT). In the systems, there are a content provider (CP), a consumer, the first trusted third party (TTP), and the second TTP. To protect the copyright of the image, the consumer ID is embedded into the amplitude components of the commercial image by the first TTP using the digital fingerprinting technique, and to protect the consumer's privacy against the first TTP and a malicious third party (s), the image steganography is applied to the commercial image by using image transformation. A color dummy image is used instead of a gray dummy image for security purposes. After applying the image transformation to both images, the coefficient signs of the commercial image are replaced by the coefficient signs of the dummy image pixel-by-pixel so that the inversely transformed commercial image looks like the dummy image instead of the commercial image. Once the consumer receives the fingerprinted image from the first TTP and the coefficient signs of the commercial image from the second TTP, the consumer reconstructs the fingerprinted commercial image without losing the hidden fingerprint at all because of the compatibility of the proposed image steganography method and the amplitude-based fingerprinting method. The experimental results confirm that the stego-images generated by the proposed systems do not look suspicious with higher qualities compared with those generated by existing systems. Moreover, the fingerprinted image quality and the correct fingerprint extracting rate have been improved by the proposed systems.","PeriodicalId":37046,"journal":{"name":"ECTI Transactions on Computer and Information Technology","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135354361","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0