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Multi-Stage-Based Siamese Neural Network for Seal Image Recognition

Computer Modeling in Engineering & Sciences 2025年第1期142卷 405-423页

作者： Jianfeng Lu Xiangye Huang caijin li Renlin Xin Shanqing Zhang Mahmoud Emam School of Computer Science and Technology Hangzhou Dianzi UniversityHangzhou310018China Shangyu Institute of Science and Engineering Hangzhou Dianzi UniversityShaoxing312300China Faculty of Artificial Intelligence Menoufia UniversityShebin El-Koom32511Egypt

Seal authentication is an important task for verifying the authenticity of stamped seals used in various domains to protect legal documents from tampering and *** seal inspection is commonly audited manually to ensure document ***,manual assessment of seal images is tedious and laborintensive due to human errors,inconsistent placement,and completeness of the *** image recognition systems are inadequate enough to identify seal types accurately,necessitating a neural network-based method for seal image ***,neural network-based classification algorithms,such as Residual Networks(ResNet)andVisualGeometryGroup with 16 layers(VGG16)yield suboptimal recognition rates on stamp ***,the fixed training data categories make handling new categories to be a challenging *** paper proposes amulti-stage seal recognition algorithmbased on Siamese network to overcome these ***,the seal image is pre-processed by applying an image rotation correction module based on Histogram of Oriented Gradients(HOG).Secondly,the similarity between input seal image pairs is measured by utilizing a similarity comparison module based on the Siamese ***,we compare the results with the pre-stored standard seal template images in the database to obtain the seal *** evaluate the performance of the proposed method,we further create a new seal image dataset that contains two subsets with 210,000 valid labeled pairs in *** proposed work has a practical significance in industries where automatic seal authentication is essential as in legal,financial,and governmental sectors,where automatic seal recognition can enhance document security and streamline validation ***,the experimental results show that the proposed multi-stage method for seal image recognition outperforms state-of-the-art methods on the two established datasets.

关键词： Seal recognition seal authentication document tampering siamese network spatial transformer network similarity comparison network

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Source Camera Identification Algorithm Based on Multi-Scale Feature Fusion

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Computers, Materials & Continua 2024年第8期80卷 3047-3065页

作者： Jianfeng Lu caijin li Xiangye Huang Chen Cui Mahmoud Emam School of Computer Science and Technology Hangzhou Dianzi UniversityHangzhou310018China Shangyu Institute of Science and Engineering Hangzhou Dianzi UniversityShaoxing312300China Key Laboratory of Public Security Information Application Based on Big-Data Architecture Ministry of Public SecurityZhejiang Police CollegeHangzhou310000China Faculty of Artificial Intelligence Menoufia UniversityShebin El-Koom32511Egypt

The widespread availability of digital multimedia data has led to a new challenge in digital *** source camera identification algorithms usually rely on various traces in the capturing ***,these traces have become increasingly difficult to extract due to wide availability of various image processing *** Neural Networks(CNN)-based algorithms have demonstrated good discriminative capabilities for different brands and even different models of camera ***,their performances is not ideal in case of distinguishing between individual devices of the same model,because cameras of the same model typically use the same optical lens,image sensor,and image processing algorithms,that result in minimal overall *** this paper,we propose a camera forensics algorithm based on multi-scale feature fusion to address these *** proposed algorithm extracts different local features from feature maps of different scales and then fuses them to obtain a comprehensive feature *** representation is then fed into a subsequent camera fingerprint classification *** upon the Swin-T network,we utilize Transformer Blocks and Graph Convolutional Network(GCN)modules to fuse multi-scale features from different stages of the backbone ***,we conduct experiments on established datasets to demonstrate the feasibility and effectiveness of the proposed approach.

关键词： Source camera identification camera forensics convolutional neural network feature fusion transformer block graph convolutional network

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对深圳市水土保持预防监督工作的思考

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亚热带水土保持 2005年第2期17卷 58-60页

作者：李财金广东省深圳市水土保持监测总站深圳518036

本文就深圳市水土保持预防监督工作所取得的成就及存在的问题进行全面总结,在重新认识预防监督的核心地位后,提出今后的发展方向。

关键词：预防监督工作水土保持深圳市发展方向

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Localization of salt-tolerant QTL in rice germination stage under different salinity concentrations

Localization of salt-tolerant QTL in rice germination stage ...

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江西省作物学会2020年学术年会

作者： Yanning Wang Mengmeng Yang Guangliang Wu Jingai Tan Peng Wang Xiangyu Zhang caijin li Qin Cheng Haohua He Jianmin Bian Key Laboratory of Crop Physiology Ecology and Genetic Breeding Ministry of Education Key Laboratory of Crop Physiology Ecology and Genetic Breeding Jiangxi Super Rice Engineering Technology Research Center

Background: Salt stress is an important abiotic stress, which has seriously affected the reproductive development of rice in many parts of the world. Therefore, it is particularly important to understand the genetic mechanism of salt tolerance in rice. In this study, we preliminarily located some quantitative trait loci(QTL) for root length, bud length, and survival percent under different salinity conditions(0, 100, 200 and 400 mM NaCl), using a population of chromosome segment substitution lines(CSSLs) constructed by Nipponbare and 9311. Results: A total of 20 QTLs were identified. Under control conditions, there were two, two and three QTLs for root length, bud length and survival percent respectively. Under 100 mM NaCl, there were one QTL controlling root length and survival percent respectively, but no QTL was detected for bud length Under 200 mM NaCl, there were three, two and two QTLs for root length, bud length and survival percent respectively. Under 400 mM NaCl, there were one QTLs for the root length and bud length and survival percent respectively. Under different salinity conditions, the QTLs located are different, that is to say, the salt tolerance mechanism of rice under different salt conditions may be different. These identified QTL will provide a theoretical basis for the identification of salt-tolerance related genes in rice. Conclusions: The QTLs identified in the experiment may be valuable genetic factors for improving salt tolerance of rice. CCSLs carrying QTLs is a good source of salt tolerance genes. These QTLs can be used to improve salt tolerance of rice by molecular markers, which will help to further understand the genetic mechanism of salt tolerance of rice.

关键词： rice salt stress root length bud length survival percent QTL

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Genetic basis analysis for indica germinability under low temperature using a new RILs population genotyping by whole-genome resequencing

Genetic basis analysis for indica germinability under low te...

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江西省作物学会2020年学术年会

作者： Peng Wang Guangliang Wu Xin Luo Ruiqi liu ong Zou Yicong Cai Dahu zhou Jingai Tan Xiangyu Zhang caijin li Cuijuan li Yanning Wang Qin Cheng Haohua He Jianmin Bian Key Laboratory of Crop Physiology Ecology and Genetic Breeding Ministry of Education Jiangxi Super Rice Engineering Technology Research Center

To evaluate the cold tolerance of indica rice at germination stage, a recombinant inbred lines（RILs） population comprising 126 lines derived from two widely used double-cropped indica rice varieties Wufeng B（WFB） and Changhui T025（CHT025） was developed. Meanwhile, a high-density genetic map including 2578 bins covering distance of 1762.8 cM with an average of 0.68 cM between markers was generated through whole-genome resequencing approach. On the basis of newly constructed high-density genetic map, a total of 18 additive QTLs ranging from 49.78 to 315.21 kb on Nipponbare genome and two pairs of epistatic QTLs associated with cold stress were detected, which indicated that the genetic basis of cold tolerance of WFB and CHT025 at germination stage is manly due to additive effects of several QTLs. Otherwise, the phylogenetic analysis showed that WFB is a typical indica variety while CHT025 is an interphyletic rice variety. Most of the favorable QTLs harbouring in WFB detected in this study showed different chromosomal region from the QTLs associating with cold stress from japonica rice in previous studies, which indicated that indica might have different cold stress genetic mechanism comparing to japonica subspecies. Furthermore, we can incorporate these favorable QTLs exist in WFB into rice varieties to breed new cold tolerance indica male sterile maintenance line via marker-assisted selection;CHT025 is a better source of these cold tolerance favorable QTLs only only for the improvement of indcia but also for japonica restorer line germinability under low temperature via marker-assisted selection.

关键词： indica rice RILs high-density genetic map cold stress QTLs

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深圳饮用水源保护林现状、存在问题及其对策

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亚热带水土保持 2008年第1期20卷 17-19页

作者：罗振李财金深圳市深水水务咨询有限公司 518036

水源保护林可以调节水量、控制土壤侵蚀和改善水质,达到保护水源的目的,对实现水土资源的可持续利用和生态环境的可持续维护具有重要战略意义。本文通过对深圳市水源保护林现状及存在问题的分析评价,提出了水源保护林建设必要性、总体... 详细信息

水源保护林可以调节水量、控制土壤侵蚀和改善水质,达到保护水源的目的,对实现水土资源的可持续利用和生态环境的可持续维护具有重要战略意义。本文通过对深圳市水源保护林现状及存在问题的分析评价,提出了水源保护林建设必要性、总体思路及关键措施。

关键词：水源保护区水源保护林植被树种

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深圳市裸露山体缺口生态治理探索

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亚热带水土保持 2005年第3期17卷 11-13页

作者：吴长文李财金深圳市水土保持办公室 518000 深圳市水土保持监测总站 518000

本文在分析了裸露山体缺口产生原因基础上,提出了裸露山体缺口的概念,阐述了裸露山体缺口治理思路,总结了深圳市裸露山体缺口生态治理模式和创新技术体系。

关键词：裸露山体缺口生态治理深圳市

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植被对城市塑山堆土土壤物理性质的影响

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亚热带水土保持 2018年第4期30卷 7-10,30页

作者：李财金唐玲赖涛深圳市深水水务咨询有限公司深圳518003

通过对4个试验小区的土壤进行取样分析,对比了不同植被下城市塑山堆土的土壤物理性质,结果表明,不同植被类型土壤容重随土层深度的增加而呈逐渐增大趋势,而土壤总孔隙度、毛管孔隙度和非毛管孔隙度的变化趋势与之相反。不同植被类型之... 详细信息

通过对4个试验小区的土壤进行取样分析,对比了不同植被下城市塑山堆土的土壤物理性质,结果表明,不同植被类型土壤容重随土层深度的增加而呈逐渐增大趋势,而土壤总孔隙度、毛管孔隙度和非毛管孔隙度的变化趋势与之相反。不同植被类型之间的土壤物理性质差异与植物根系分布关系较大,灌木地、人工草地和自然草地的平均土壤容重分别较裸地减少19. 3%、13. 4%和10. 7%。从改善容重、孔隙度和三相比等土壤物理指标来看,总体以灌木的效果最好,其次是人工草地,自然草地效果相对较差。因此,采取灌草结合的方式对土壤进行生态修复,有利于改善土壤容重和孔隙度,使土壤三相比趋于合理。

关键词：植物类型城市塑山堆土土壤物理性质

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深圳市裸露山体缺口生态治理探索

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深圳特区科技 2005年第11期 334-337页

作者：吴长文李财金深圳市水土保持办公室深圳市水土保持监测总站

关键词：裸露山体缺口生态治理深圳市技术创新

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2013年广州地区5岁以下儿童轮状病毒感染腹泻流行病学研究

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国际检验医学杂志 2015年第9期36卷 1255-1256页

作者：李彩金何艳明广州市妇女儿童医疗中心广东广州510120

目的为了解广州地区5岁以下婴幼儿腹泻A组轮状病毒（RV-A）感染情况及流行病学特征。方法收集广州市妇女儿童医疗中心2013年1∽12月因腹泻就诊的门诊和住院患儿粪便标本,采用胶体金免疫层析法检测A组轮状病毒。结果在收集1 248例患儿粪... 详细信息

目的为了解广州地区5岁以下婴幼儿腹泻A组轮状病毒（RV-A）感染情况及流行病学特征。方法收集广州市妇女儿童医疗中心2013年1∽12月因腹泻就诊的门诊和住院患儿粪便标本,采用胶体金免疫层析法检测A组轮状病毒。结果在收集1 248例患儿粪便标本中共检出A组轮状病毒295例,阳性率为23.6%。不同性别腹泻患儿的阳性检出率差异无统计学意义（P〉0.05）。结论 A组轮状病毒是广州地区婴幼儿腹泻的重要病原体,6个月至2岁的儿童是轮状病毒的易感人群,疾病的高发季节为每年的1、11、12月份。

关键词：儿童腹泻轮状病毒流行病学

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