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Fingerprint Matching for Noisy and Distorted Patterns Using a Siamese Network With ResNet50 and Multihead Attention

IEEE Access 2025年 13卷 88047-88064页

作者： Sawhney, Tinny Sharma, Ashu Abrol, Pawanesh Kumar Lehana, Parveen Chaahat Yadav, Vaishali Scherer, Rafal Kulakov, Oleksii Ali Alzubi, Ahmad University of Jammu DSP Laboratory Department of Electronics Jammu180006 India University of Jammu Department of Computer Science and IT Jammu180006 India Chitkara University Institute of Engineering and Technology Chitkara University Department of Computer Science and Engineering Punjab Rajpura140401 India Manipal University Jaipur Department of Computer Science & Communication Engineering Jaipur303007 India Czestochowa University of Technology Department of Artificial Intelligence Częstochowa42-200 Poland Faculty of Informatics and Software Engineering National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute" Kyiv03056 Ukraine King Saud University Community College Department of Computer Science Riyadh11451 Saudi Arabia

Dermatoglyphics, the study of unique ridge patterns on fingertips, plays a crucial role in fingerprint-based identification. However, skin conditions such as psoriasis, eczema, and verruca vulgaris can distort these patterns. This distortion creates challenges for fingerprint matching systems in forensic science and biometric authentication. This paper proposes a Siamese network with a modified ResNet50 architecture and multihead attention mechanisms to improve fingerprint matching under such distortions. The Siamese network enables the system to compare fingerprint pairs effectively, even under distortions. The modified ResNet50 architecture captures intricate ridge patterns, while the multihead attention mechanisms focus on critical fingerprint regions. Overall, the proposed approach enhances the system’s ability to learn discriminative features. As a result, it can effectively differentiate between matched and unmatched fingerprint pairs, even in the presence of moderate to extreme noise. The proposed system was trained on the Sokoto coventry fingerprint dataset (SOCOFing) and a custom dataset. Experimental results demonstrate high accuracy, with the system achieving 99.47% accuracy under low noise conditions and 90% under moderate noise. However, performance declined to 55.56% under extreme distortions. A comparative analysis highlighted the superiority of the proposed system over widely used minutiae-based methods. The latter exhibited a significant drop in matching scores, falling below 15% for highly distorted fingerprints. These findings underscore the limitations of traditional fingerprint recognition techniques and highlight the effectiveness of proposed approach in handling dermatoglyphic distortions. © 2013 IEEE.

关键词： Feature Selection

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Parallel decoding of turbo codes using multi-point trellis termination and collision-free interleavers

Parallel decoding of turbo codes using multi-point trellis t...

引用

Wireless Telecommunications Symposium, WTS

作者： Mustafa Taskaldiran Richard C.S. Morling Izzet Kale Applied DSP and VLSI Research Group Department of Electronic Communication and Software Engineering University of Westminster London UK

The UMTS turbo encoder is composed of parallel concatenation of two Recursive Systematic Convolutional (RSC) encoders which start and end at a known state. This trellis termination directly affects the performance of turbo codes. This paper presents performance analysis of multi-point trellis termination of turbo codes which is to terminate RSC encoders at more than one point of the current frame while keeping the interleaver length the same. For long interleaver lengths, this approach provides dividing a data frame into sub-frames which can be treated as independent blocks. A novel decoding architecture using multi-point trellis termination and collision-free interleavers is presented. Collision-free interleavers are used to solve memory collision problems encountered by parallel decoding of turbo codes. The proposed parallel decoding architecture reduces the decoding delay caused by the iterative nature and forward-backward metric computations of turbo decoding algorithms. Our simulations verified that this turbo encoding and decoding scheme shows bit error rate (BER) performance very close to that of the UMTS turbo coding while providing almost %50 time saving for the 2-point termination and %80 time saving for the 5-point termination.

关键词： Turbo codes Iterative decoding 3G mobile communication Computer architecture Bit error rate Convolutional codes Performance analysis Delay Concurrent computing Iterative algorithms

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Design of a power-aware digital image rejection receiver

Design of a power-aware digital image rejection receiver

引用

IEEE International Symposium on Circuits and Systems (ISCAS)

作者： Ediz Cetin Izzet Kale Richard C. S. Morling Applied DSP and VLSI Research Group Department of Electronic Communication and Software Engineering University of Westminster London UK

ISBN: (纸本)9781424438273

This paper deals with and details the design of a power-aware adaptive digital image rejection receiver based on blind-source-separation that alleviates the RF analog front-end impairments. Power-aware system design at the RTL level without having to redesign arithmetic circuits is used to reduce the power consumption in nomadic devices. Power-aware multipliers with configurable precision are used to trade-off the image-rejection-ratio (IRR) performance with power consumption. Results of the simulation case studies demonstrate that the IRR performance of the power-aware system is comparable to that of the normal implementation albeit degraded slightly, but well within the acceptable limits.

关键词： Digital images Baseband Hydrogen Digital signal processing Radio frequency Energy consumption Degradation Signal processing RF signals Very large scale integration

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Increasing the speed of parallel decoding of turbo codes

Increasing the speed of parallel decoding of turbo codes

引用

Ph.D. Research in Microelectronics and Electronics (PRIME)

作者： Mustafa Taskaldiran Richard C.S. Morling Izzet Kale Applied DSP and VLSI Research Group Department of Electronic Communication and Software Engineering University of Westminster London UK

Turbo codes experience a significant decoding delay because of the iterative nature of the decoding algorithms, the high number of metric computations and the complexity added by the (de)interleaver. The extrinsic information is exchanged sequentially between two Soft-Input Soft-Output (SISO) decoders. Instead of this sequential process, a received frame can be divided into smaller windows to be processed in parallel. In this paper, a novel parallel processing methodology is proposed based on the previous parallel decoding techniques. A novel Contention-Free (CF) interleaver is proposed as part of the decoding architecture which allows using extrinsic Log-Likelihood Ratios (LLRs) immediately as a-priori LLRs to start the second half of the iterative turbo decoding. The simulation case studies performed in this paper show that our parallel decoding method can provide %80 time saving compared to the standard decoding and %30 time saving compared to the previous parallel decoding methods at the expense of 0.3 dB Bit Error Rate (BER) performance degradation.

关键词： Turbo codes Iterative decoding Delay Code standards Communication standards Digital video broadcasting Iterative algorithms Parallel processing Bit error rate 3G mobile communication

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The practical limits of MASH Delta-Sigma Modulators designed to maintain very long controllable sequence lengths for structured tone mitigation

The practical limits of MASH Delta-Sigma Modulators designed...

引用

IEEE Annual Conference on Wireless and Microwave Technology (WAMICON)

作者： Ali Telli Izzet Kale Applied DSP and VLSI Research Group Department of Electronic Communication & Software Engineering School of Informatics University of Westminster London UK

The delta-sigma modulator (DSM) is an essential block for a Fractional-N (FN) frequency synthesizers and is used for generating the fractional part of the division ratio. Digital DSMs (DDSM) with rational input and rational initial conditions can be thought as Finite State Machines (FSM) and they always produce finite length sequences in accordance with the applied input. To provide smooth quantization noise power distribution (tone free) and to get rid of structured tones, the modulator should complete its cycle and return to initial starting state. This method is called maintaining controllable sequence length. In this paper, the practicality of this method will be investigated for DDSMs composed of up to 5 th order MASH 1-1-1-1-1 structures by considering lock time requirements of the synthesizers designed for wireless transceiver applications such as GSM900, DCS-1800, UMTS(WCDMA),WLAN, ZigBee and Bluetooth.

关键词： Multi-stage noise shaping Delta modulation Frequency synthesizers Delta-sigma modulation Automata Quantization 1f noise Power distribution Transceivers ZigBee

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Tree structures with attentive objects for image classification using a neural network

Tree structures with attentive objects for image classificat...

引用

International Joint Conference on Neural Networks (IJCNN)

作者： Hong Fu Shuya Zhang Zheru Chi David Dagan Feng Xiaoyu Zhao Center for Multimedia Signal Processing Department of Electronic and Information Engineering Hong Kong Polytechnic University Hong Kong China Institute of DSP and Software Technology Ningbo University Ningbo China School of Information Technologies University of Sydney NSW Australia

This paper presents an image classification method based on a neural network model dealing with tree structures of attentive objects. Apart from regions provided by image segmentation, attentive objects, which are extracted from a segmented image by an attention-driven image interpretation algorithm, are used to construct the tree structure to represent an image. Three combinations of tree structures are investigated, including ldquoimage + attentive-object + segmentsrdquo, ldquoimage + attentive-objectsrdquo, as well as ldquoimage + segmentsrdquo. Structure based neural networks are trained to classify the images by using the back propagation through structure (BPTS) algorithm. Experimental results show that the ldquoimage + attentive objectsrdquo structure is more favorable, comparing with both the other two structures proposed by us and a start-of-art tree structure reported in the literature, in terms of classification rate and computational time.

关键词： Tree data structures Image classification Neural networks Image segmentation Signal processing algorithms Classification tree analysis Image color analysis Image texture analysis Shape Councils

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Design and low-power implementation of an adaptive image rejection receiver

Design and low-power implementation of an adaptive image rej...

引用

IEEE International Symposium on Circuits and Systems (ISCAS)

作者： Ediz Cetin Sinan Topcu Izzet Kale Richard C. S. Morling Applied DSP and VLSI Research Group Department of Electronic Communication and Software Engineering University of Westminster London UK STMicroelectronics Inc. Istanbul Turkey

This paper deals with and details the design and implementation of a low-power; hardware-efficient adaptive self-calibrating image rejection receiver based on blind-source- separation that alleviates the RF analog front-end impairments. Hybrid strength-reduced and re-scheduled data-flow, low-power implementation of the adaptive self-calibration algorithm is developed and its efficiency is demonstrated through simulation case studies. A behavioral and structural model is developed in Matlab as well as a low-level architectural design in VHDL providing valuable test benches for the performance measures undertaken on the detailed algorithms and structures.

关键词： Signal processing algorithms Algorithm design and analysis Baseband Hydrogen Digital signal processing Radio frequency RF signals Very large scale integration software engineering Scheduling

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Living and Dealing with RF Impairments in Communication Transceivers

Living and Dealing with RF Impairments in Communication Tran...

引用

IEEE International Symposium on Circuits and Systems (ISCAS)

作者： Ediz Cetin Izzet Kale Richard C. S. Morling Applied DSP and VLSI Research Group Department of Electronic Communication and Software Engineering University of Westminster London UK Applied DSP and VLSI Research Centre Eastern Mediterranean University Turkey

This paper provides an overview of the sources and effects of the RF impairments limiting and rendering the performance of the future wireless communication transceivers costly as well as hindering their wide-spread use in commercial products. As transmission bandwidths and carrier frequencies increase effect of these impairments worsen. This paper studies and presents analytical evaluations of the performance degradation due to the RF impairments in terms of bit-error-rate and image rejection ratio. The paper also give highlights of the various aspects of the research carried out in mitigating the effects of these impairments primarily in the digital signal processing domain at the baseband as well as providing low-complexity hardware implementations of such algorithms incorporating a number of power and area saving techniques

关键词： Radio frequency Transceivers Limiting Wireless communication Bandwidth Image analysis Performance analysis Degradation Digital signal processing Baseband

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Analysis and Compensation of RF Impairments for Next Generation Multimode GNSS Receivers

Analysis and Compensation of RF Impairments for Next Generat...

引用

IEEE International Symposium on Circuits and Systems (ISCAS)

作者： Ediz Cetin Izzet Kale Richard C.S. Morling Applied DSP and VLSI Research Group Department of Electronic Communication and Software Engineering University of Westminster London UK Applied DSP and VLSI Research Centre Eastern Mediterranean University Cyprus

Global navigation satellite system (GNSS) receivers require solutions that are compact, cheap and low-power, in order to enable their widespread proliferation into consumer products. Furthermore, interoperability of GNSS with non-navigation systems, especially communication systems will gain importance in providing the value added services in a variety of sectors, providing seamless quality of service for users. An important step into the market for Galileo is the timely availability of these hybrid multi-mode terminals for consumer applications. However, receiver architectures that are amenable to high-levels of integration will inevitably suffer from RF impairments hindering their easy widespread use in commercial products. This paper studies and presents analytical evaluations of the performance degradation due to the RF impairments and develops algorithms that can compensate for them in the dsp domain at the base band with complexity-reduced hardware overheads, hence, paving the way for low-power, highly integrated multi-mode GNSS receivers

关键词： Radio frequency Satellite navigation systems Global Positioning System Consumer products Quality of service Availability Performance analysis Algorithm design and analysis Degradation Digital signal processing

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Fast bit allocation method for MP3/AAC encoders

Fast bit allocation method for MP3/AAC encoders

引用

118th Convention Spring Preprints 2005

作者： Bang, Kyoung Ho Lee, Keun Sup Park, Young Cheol Youn, Dae Hee DSP Lab. Dept. of Electrical and Electronic Engineering Yonsei University Seoul 120-749 Korea Republic of Modem Software Lab. Samsung Electronics Co. Suwon 442-742 Korea Republic of Dept. of Information Technology Yonsei University Wonju 220-710 Korea Republic of

ISBN: (纸本)9781604234848

In MP3/AAC encoders, the quantization parameter called scale factor controls the quantization noise and the bit rate. Tuning these encoders would require a characterization of the rate-distortion function per sub-band, which seems to be available only in a parametric manner. In this paper, a fast bit allocation method for MP3/AAC encoder is presented. The resulting encoder is able to produce an ISO/MPEG compliant bit-stream which can guarantee better audio quality. More importantly, the number of computational steps is greatly reduced as compared to the method recommended by the ISO/MPEG committee because the efficient bit allocation algorithm significantly reduces the number of iterations required. It was found that the efficient bit allocation algorithm works best when the bit rate demanded by the psychoacoustic model in order to keep the quantization noise below the masking threshold is almost equal to the operational bit rate.

关键词： Electric distortion

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