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Maximizing the underwater wireless sensor networks' lifespan using BTC and MNP5 compression techniques

ANNALS OF TELECOMMUNICATIONS 2022年第9-10期77卷 703-723页

作者： Jawad, Ghufran Ali M. Al-Qurabat, Ali Kadhum M. Idrees, Ali Kadhum Univ Babylon Coll Sci Women Dept Comp Sci Babylon Iraq

The sending/receiving of data is the biggest energy user in the underwater wireless sensor networks (UWSNs). The energy supplied by the battery is the most critical resource in the sensor node affecting UWSN's lifetime. At sensor nodes, energy is used in several forms, such as data reception and transmission, sensing, and processing. In all these, the transmission of data is very expensive in terms of power depletion, whereas data processing demand is known to be much smaller. Therefore, to save energy and boost the lifespan of UWSN, it is crucial to reduce data sending/receiving. In this paper, a two-level data compression method is proposed to work at two levels of the network that are sensor nodes and the gateway. At the sensor nodes level, we introduced a compression-based block truncation coding (CBBTC) strategy to minimize the amount of transferred data, reduce the energy used, and thereby prolong the network lifetime while attempting to keep the accuracy of the data reaching the base station at the best possible level. At the gateway (i.e., cluster head (CH)) level, a lossless compression algorithm called MNP5 is proposed to compress the obtained data sets. The MNP5 method is a double-staged procedure that consists of run-length (RLE) and adaptive frequency encodings. Using extensive simulation experiments, the assessment of proposed approaches is performed. Compared to prefix frequency filtering (PFF) and Harb protocols, the results of the simulation prove effectiveness, i.e., overhead reduction of up to 98% in residual data and 98% in energy consumption while preserving the accuracy of sent data above 90%.

关键词： Data compression UWSN block truncation coding MNP5 Energy-saving Lifespan

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Reversible self-verifying and self-recovering technique for color image demosaicking

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MULTIMEDIA TOOLS AND APPLICATIONS 2021年第16期80卷 24949-24968页

作者： Lin, Yu-Hsiu Hu, Yu-Chen Chen, Wu-Lin Acharya, Biswaranjan Natl Taipei Univ Technol Grad Inst Automat Technol Taipei 106344 Taiwan Providence Univ Dept Comp Sci & Informat Management 200 Sec 7 Taiwan Blvd Taichung 43301 Taiwan KIIT Deemed Be Univ Sch Comp Engn Bhubaneswar Odisha India

This paper develops an integrity protection technique based on image demosaicking. To provide the reversible property, the rebuilt components in color pixels are used for secret data embedding. The random value and the hashed result of the most significant high-order bits of the color components are employed to generate the authentication code for each rebuilt component. In addition, the optimal single bit map block truncation coding (OSBMBTC) technique is adopted for generating recovery codes. A block-based image recovery procedure is designed to reconstruct the modified areas. Experimental results reveal that the illegally tampered objects in the test images can be found in these tests even when 87.5% pixels are modified. From the results, the image quality of the recovery image is acceptable when 50% of pixels are modified. Moreover, the demosaicked image can be reversibly constructed when the embedded image is not tampered.

关键词： Color filter array Image demosaicking Tamper detection Image recovery block truncation coding Reversibility preserving

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A Unified Compression and Watermarking Scheme for MT-BTC Images

A Unified Compression and Watermarking Scheme for MT-BTC Ima...

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14th Annual Summit and Conference of the Asia-Pacific-Signal-and-Information-Processing-Association (APSIPA ASC)

作者： Guo, Jing-Ming Seshathiri, Sankara Riniva An Natl Taiwan Univ Sci & Technol Dept Elect Engn Taipei 10607 Taiwan

ISBN: (数字)9786165904773

ISBN: (纸本)9786165904773

As most multimedia is compressed for optimal storage or transmission, the watermarking during compression is more appropriate and demanding. Multi-tone block truncation coding image (MT-BTC) is a latest and superior version of halftone based block truncation coding images. In this paper, a novel watermarking strategy is proposed for MT-BTC images using the adaptive dither array selection (ADAS) and inter-tone shifting. ADAS method utilize dither array constructed using two different gaussian filters based on the Human Visual System (HVS) model to embed the watermark information. Further, various configuration of dither array such as actual, conjugate, transpose and transpose conjugate is used to embed more data. Moreover, a new approach termed inter-tone shifting is also proposed to improve the decoding rate and security. The decoding scheme is performed using the pattern similarity on the dithered watermarked image. For result validation, a 2,4,6 and 8-Tone watermark image is embedded in the 4-Tone MTBTC image. From extensive analysis on decoding rate and robustness, it has been validated that the proposed scheme outperforms many halftone watermarking and consistent with conventional BTC methods.

关键词： block truncation coding Ordered Dithering Multitoning Watermarking Direct Binary Search

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Content-Based Image Retrieval with Ordered Dither block truncation coding Features

Content-Based Image Retrieval with Ordered Dither Block Trun...

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IEEE International Conference on Image Processing

作者： Jing-Ming Guo Heri Prasetyo Department of Electrical Engineering National Taiwan University of Science and Technology Taipei Taiwan

ISBN: (纸本)9781479923427

This paper presents a technique for Content-Based Image Retrieval (CBIR) by exploiting the low complexity advantage of the Ordered-Dither block truncation coding (ODBTC) for generating image content descriptors. The two image features, namely Color Co-occurrence Feature (CCF) and Bit Pattern Features (BPF), are generated from ODBTC encoded data streams (without really performing an image compression or decoding process) to measure the similarity between two images. Experimental results show that the proposed method is superior to the block truncation coding (BTC) image retrieval system and other former methods, and prove that the ODBTC scheme is not only suited for image compression for its simplicity, but also offers a conveniently way for image indexing in the content-based image retrieval system.

关键词： Ordered Dither block truncation coding Content-Based Image Retrieval Color Co-occurrence Feature Bit Pattern Feature content-based image retrieval Image compression Data compression block truncation coding image retrieval image indexing dithering Band-pass filters

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Design and implementation of power efficient image compressor for WSN systems

Design and implementation of power efficient image compresso...

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International Conference on Advances in Materials Research (ICAMR)

作者： Krishnamoorthy, Raja Jayasankar, T. Shanthi, S. Kavitha, M. Bharatiraja, C. CMR Engn Coll Dept ECE Hyderabad Telangana India Univ Coll Engn Dept Elect & Commun Engn BIT Campus Tiruchirappalli Tamil Nadu India Saveetha Sch Engn Dept Elect & Commun Engn SIMATS Chennai Tamil Nadu India K Ramakrishnan Coll Technol Dept Elect & Commun Engn Tiruchirappalli Tamil Nadu India SRM Inst Sci & Technol Dept Elect & Elect Engn Chennai 603203 TN India

In the digital electronics era, video and image processing, storage, data transmitting, data streaming, data retrieval, video playback features increasing exponentially. These requirements data processing and storage improvement results to necessity of hybrid compression, efficient encoding and decoding, compression ratio techniques in demand for modern real time applications. For that spatial domine technology of compression is prefer to satisfy the computational constraint for real time gadgets. Discrete wavelet transformation (DWT) based Multi-Level block truncation coding (MLBTC) methodology used for special domine. Discrete Wavelet Transform procedure is utilized to constant and motion images and implemented to all mean pixel estimation of the image. Loss type compression technology BTC is implemented for gray scale image processing. It designed that original image divided as square blocks with help of quantize for decrease the gray intensity images every portion of square box having equal standard deviation and Mean values. In this proposed methodology is analysis of BWT-MLBTC image compression technologies for both binary and color images. The methodology has been implemented in Xilinx ISE software, the simulation results shows that the proposed method consumes less hardware resources, delay generations and power utilizations compared to the state of art approaches. (c) 2021 Elsevier Ltd. All rights reserved. Selection and peer-review under responsibility of the scientific committee of the International Conference on Advances in Materials Research-2019.

关键词： VLSI block truncation coding Wavelet transformation Based multi-level block truncation coding Image compressor Discrete wavelet transformation

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A Hardware-Oriented Image Compression Algorithm Based on BTC and YEF Color Space

A Hardware-Oriented Image Compression Algorithm Based on BTC...

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IEEE International Conference on Consumer Electronics (ICCE)

作者： Ke, Shih-Yao Jhou, He-Sheng Chen, Chiung-An Lin, Ting-Lan Abu, Patricia Angela R. Chen, Shih-Lun Chung Yuan Christian Univ Dept Elect Engn Taoyuan Taiwan Ming Chi Univ Technol Dept Elect Engn New Taipei Taiwan Natl Taipei Univ Technol Dept Elect Engn Taipei Taiwan Ateneo Manila Univ Dept Informat Syst & Comp Sci Quezon City Philippines

ISBN: (纸本)9781728197661

This paper proposes a new compression algorithm based on color sampling and block truncation coding (BTC). It is composed of several steps, color sampling, BTC parameter training, threshold selection, sub-sampling, prediction and quantization, and Huffman coding. The color sampling was applied using YEF color space which reduced 34% storage. The subsequent sub-sampling, quantization table prediction, and Huffman coding further increase compression rates. In addition, the BTC parameter training step finds the best reconstruction value for each 4*4 block and bitmap threshold value to improve the image quality. Compared with previously studies, the proposed algorithm shows a better average compression rate.

关键词： YEF Color Space block truncation coding Bit Map Threshold Image Compression Color sampling Huffman coding

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Design of low power VCO using FinFET technology for biomedical applications

Design of low power VCO using FinFET technology for biomedic...

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International Conference on Advances in Materials Research (ICAMR)

作者： Rani, M. Santhosh Vinothkumar, K. Krishnamoorthy, Raja Jayasankar, T. Prakash, N. B. Bharatiraja, C. SRM Inst Sci & Technol Dept Mechatron Engn Kattankulathur Campus Kattankulathur 603203 Tamilnadu India SSM Inst Engn & Technol Dept Elect & Commun Engn Dindigul Tamilnadu India CMR Engn Coll Dept ECE Hyderabad 501401 Telangana India Anna Univ Univ Coll Engn Dept Elect & Commun Engn BIT Campus Tiruchirappalli Tamilnadu India Natl Engn Coll Dept Elect & Elect Engn Kovilpatti Tamilnadu India SRM Inst Sci & Technol Dept Elect & Elect Engn Kattankulathur Campus Kattankulathur 603203 Tamilnadu India

A voltage controlled oscillator (VCO) is one of the most significant essential structure obstructs in simple and advanced circuit (CKT). In Biomedical applications the nature of the biomedical connection is resolved in huge part by the qualities of the VCO and in the present biomedical applications more prominent recurrence goes is required by the VCOs. Generally, VCOs utilizing CMOS innovation have been utilized for low recurrence applications, however 18 nm forms have permitted CMOS oscillators to accomplish frequency in the gigahertz extend. This range is made conceivable with the utilization of programmed swing control. VCO can be fabricated utilizing many CKT strategies. VCO can be built using many CKT techniques. To design improved performance VCO's explicitly low power different techniques using latest cadence software to obtain high density and low leakage current. To optimize and design the VCs, carry out analysis and enhance the performance. To design VCO with four different techniques using latest cadence software, optimize their performance and measure it in cadence software environment. (c) 2021 Elsevier Ltd. All rights reserved. Selection and peer-review under responsibility of the scientific committee of the International Conference on Advances in Materials Research-2019.

关键词： VLSI block truncation coding Wavelet transformation Voltage controlled oscillator Biomedical applications

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Secure Outsourcing Algorithm of BTC Feature Extraction in Cloud Computing

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IEEE ACCESS 2020年 8卷 106958-106967页

作者： Jiang, Mingfang Yang, Hengfu Hunan First Normal Univ Dept Informat Sci & Engn Changsha 410205 Peoples R China

Advances in cloud computing have aroused many researchers& x2019;interest in privacy-preserving feature extraction over outsourced multimedia data, especially private image data. Since block truncation coding (BTC) is known as a simple and efficient technology for image compression, this paper focuses on privacy-preserving feature extraction in BTC compressed domain. We propose a privacy-preserving computation of BTC feature extraction over massive encrypted images (also called PPBTC). First, all images are uploaded to the cloud after encryption. The privacy-preserving image encryption process consists of block permutation, pixel diffusion, and a bit-plane random shift. BTC features remain unchanged after encryption and the cloud server can directly extract BTC features from the encrypted images. Some analyses and experimental results demonstrate that the proposed privacy-preserving feature extraction scheme for BTC-compressed images is efficient and secure, and it can be applied to secure image computation applications in cloud computing.

关键词： Feature extraction privacy-preserving block truncation coding homomorphic encryption

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A fast progressive image transmission scheme using block truncation coding by pattern fitting

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JOURNAL OF VISUAL COMMUNICATION AND IMAGE REPRESENTATION 2012年第2期23卷 313-322页

作者： Dhara, Bibhas Chandra Chanda, Bhabatosh Jadavpur Univ Dept Informat Technol Kolkata India Indian Stat Inst Kolkata India

In this paper, we have proposed a novel progressive image transmission scheme. In the present method, the concept of the BTC-PF is used for faster decoding. Here, images are decomposed into a number of blocks based on smoothness criterion. The smooth blocks are encoded by block means and the others are by BTC-PF method. To encode a block by BTC-PF method, the codebook is organized like a full search progressive transmission tree which helps greatly in efficient progressive transmission. The present method provides good image quality at low bit-rate and faster decoding compared to other spatial domain progressive transmission methods. We extend this method for color images also. In color image coding, each color plane is encoded separately and then the encoded information of the planes are transmitted in interleaving manner to obtain color images right from the early stages. (C) 2011 Elsevier Inc. All rights reserved.

关键词： Image compression Image transmission Grayscale progressive image transmission Color image progressive transmission block truncation coding Pattern fitting BTC-PF coding Full-search progressive transmission tree Reversible color transformation

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Dual block truncation coding for Overdriving of Full HD LCD Driver

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IEEE TRANSACTIONS ON CONSUMER ELECTRONICS 2012年第1期58卷 1-7页

作者： Ko, Yun-Ho Kim, Jin-Hyung Lee, Si-Woong Kang, Hyun-Soo Chungnam Natl Univ Dept Mechatron Engn Coll Engn Taejon 305764 South Korea Hanbat Natl Univ Div Informat Commun & Comp Engn Taejon 305719 South Korea Chungbuk Natl Univ Coll Elect & Comp Engn Chungbuk 361763 South Korea

This paper presents an image coding method for overdriving of a 10bit Full HD LCD display considering the chip size of TCON (Timing Controller) and real-time operation. The proposed method is an adaptive scheme of AM-BTC (Absolute Moment block truncation coding). It splits a sample block into two sub-blocks considering the color level distribution of the sample block and applies AM-BTC to each sub-block. Experimental results show that the proposed method is superior to the conventional method in both objective and subjective visual quality.(1).

关键词： Dual BTC block truncation coding Full HD TCON LCD Overdriving

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