The typical features of the coordinate and the curvature as well as the recorded time information were analyzed in the hand-written signatures.In the hand-written signature process 10 biometric features were summarize...The typical features of the coordinate and the curvature as well as the recorded time information were analyzed in the hand-written signatures.In the hand-written signature process 10 biometric features were summarized:the amount of zero speed in direction x and direction y,the amount of zero acceleration in direction x and direction y,the total time of the hand-written signatures,the total distance of the pen traveling in the hand-written process,the frequency for lifting the pen,the time for lifting the pen,the amount of the pressure higher or lower than the threshold values.The formulae of biometric features extraction were summarized.The Gauss function was used to draw the typical information from the above-mentioned biometric features,with which to establish the hidden Markov mode and to train it.The frame of double authentication was proposed by combing the signature with the digital signature.Web service technology was applied in the system to ensure the security of data transmission.The training practice indicates that the hand-written signature verification can satisfy the needs from the office automation systems.展开更多
The hand-written Chinese characters reorganization input system, introduced by the Shenbi Electronics, Science and Technology Corporation Ltd. in Guangzhou, is made of advancedoverseas computer identification technolo...The hand-written Chinese characters reorganization input system, introduced by the Shenbi Electronics, Science and Technology Corporation Ltd. in Guangzhou, is made of advancedoverseas computer identification technology. It consists of an input board and identification software.展开更多
Background:Documents play an essential role in societal operations,where ensuring their authenticity and integrity is paramount.Despite this,documents are susceptible to alterations,such as forgery or tampering,which ...Background:Documents play an essential role in societal operations,where ensuring their authenticity and integrity is paramount.Despite this,documents are susceptible to alterations,such as forgery or tampering,which can undermine their reliability.Forensic document examination is critical in detecting these modifications,thus safeguarding legal and procedural standards.Aims and Objectives:Conventionally,such examinations have concentrated on elements such as printing devices,document formatting,and print steganography,with limited attention given to the textual content itself.This study seeks to bridge that gap by focusing on the typeface variations in printed documents,using the Chinese Song typeface as a case study.Materials and Methods:For the first time,this research systematically explores the differences in typeface versions across printed documents,concentrating on a dataset of 3500 commonly used Chinese characters.We statistically analyzed and compared 29 different versions of four mainstream Chinese typefaces currently available on the market.Results:Leveraging Python-based tools,we replaced the traditional printing process with digital image rendering to conduct our analyses,employing both traditional overlay comparison methods and image differentiation techniques.Furthermore,we introduced an innovative metric to quantify character variation.Conclusion:Based on these findings,we identified a subset of frequently used characters with significant forensic examination value,offering pioneering insights into the practical application of typeface version analysis in document forensics.展开更多
1 General information Journal of Geographical Sciences is an international academic journal that publishes papers of the highest quality in physical geography,natural resources,environmental sciences,geographic inform...1 General information Journal of Geographical Sciences is an international academic journal that publishes papers of the highest quality in physical geography,natural resources,environmental sciences,geographic information sciences,remote sensing and cartography.Manuscripts come from different parts of the world.2 Format and style Contributions should be typed on A4 paper using Times New Roman typeface in Word format,normally not exceeding 20,000 words.展开更多
1 General information Journal of Geographical Sciences is an international academic journal that publishes papers of the highest quality in physical geography,natural resources,environmental sciences,geographic inform...1 General information Journal of Geographical Sciences is an international academic journal that publishes papers of the highest quality in physical geography,natural resources,environmental sciences,geographic information sciences,remote sensing and cartography.Manuscripts come from different parts of the world.2 Format and style Contributions should be typed on A4 paper using Times New Roman typeface in Word format,normally not exceeding 20,000 words.展开更多
1 General information.Journal of Geographical Sciences is an international academic journal that publishes papers of the highest quality in physical geography,natural resources,environmental sciences,geographic inform...1 General information.Journal of Geographical Sciences is an international academic journal that publishes papers of the highest quality in physical geography,natural resources,environmental sciences,geographic information sciences,remote sensing and cartography.Manuscripts come from different parts of the world.2 Format and style Contributions should be typed on A4 paper using Times New Roman typeface in Word format,normally not exceeding 20,000 words.展开更多
1 General information Journal of Geographical Sciences is an international academic journal that publishes papers of the highest quality in physical geography,natural resources,environmental sciences,geographic inform...1 General information Journal of Geographical Sciences is an international academic journal that publishes papers of the highest quality in physical geography,natural resources,environmental sciences,geographic information sciences,remote sensing and cartography.Manuscripts come from different parts of the world.2 Format and style Contributions should be typed on A4 paper using Times New Roman typeface in Word format,normally not exceeding 20,000 words.3 Abstract and keywords The text should be preceded by an abstract of 200-300 words,which should be followed by 3-7keywords on a separate line.展开更多
基金Project(03JJY3102) supported by the Natural Science Foundation of Hunan Province, China
文摘The typical features of the coordinate and the curvature as well as the recorded time information were analyzed in the hand-written signatures.In the hand-written signature process 10 biometric features were summarized:the amount of zero speed in direction x and direction y,the amount of zero acceleration in direction x and direction y,the total time of the hand-written signatures,the total distance of the pen traveling in the hand-written process,the frequency for lifting the pen,the time for lifting the pen,the amount of the pressure higher or lower than the threshold values.The formulae of biometric features extraction were summarized.The Gauss function was used to draw the typical information from the above-mentioned biometric features,with which to establish the hidden Markov mode and to train it.The frame of double authentication was proposed by combing the signature with the digital signature.Web service technology was applied in the system to ensure the security of data transmission.The training practice indicates that the hand-written signature verification can satisfy the needs from the office automation systems.
文摘The hand-written Chinese characters reorganization input system, introduced by the Shenbi Electronics, Science and Technology Corporation Ltd. in Guangzhou, is made of advancedoverseas computer identification technology. It consists of an input board and identification software.
基金supported by the scientific research project 2024JB020,KFKT2023001,2021KFKT01.
文摘Background:Documents play an essential role in societal operations,where ensuring their authenticity and integrity is paramount.Despite this,documents are susceptible to alterations,such as forgery or tampering,which can undermine their reliability.Forensic document examination is critical in detecting these modifications,thus safeguarding legal and procedural standards.Aims and Objectives:Conventionally,such examinations have concentrated on elements such as printing devices,document formatting,and print steganography,with limited attention given to the textual content itself.This study seeks to bridge that gap by focusing on the typeface variations in printed documents,using the Chinese Song typeface as a case study.Materials and Methods:For the first time,this research systematically explores the differences in typeface versions across printed documents,concentrating on a dataset of 3500 commonly used Chinese characters.We statistically analyzed and compared 29 different versions of four mainstream Chinese typefaces currently available on the market.Results:Leveraging Python-based tools,we replaced the traditional printing process with digital image rendering to conduct our analyses,employing both traditional overlay comparison methods and image differentiation techniques.Furthermore,we introduced an innovative metric to quantify character variation.Conclusion:Based on these findings,we identified a subset of frequently used characters with significant forensic examination value,offering pioneering insights into the practical application of typeface version analysis in document forensics.
文摘1 General information Journal of Geographical Sciences is an international academic journal that publishes papers of the highest quality in physical geography,natural resources,environmental sciences,geographic information sciences,remote sensing and cartography.Manuscripts come from different parts of the world.2 Format and style Contributions should be typed on A4 paper using Times New Roman typeface in Word format,normally not exceeding 20,000 words.
文摘1 General information Journal of Geographical Sciences is an international academic journal that publishes papers of the highest quality in physical geography,natural resources,environmental sciences,geographic information sciences,remote sensing and cartography.Manuscripts come from different parts of the world.2 Format and style Contributions should be typed on A4 paper using Times New Roman typeface in Word format,normally not exceeding 20,000 words.
文摘1 General information.Journal of Geographical Sciences is an international academic journal that publishes papers of the highest quality in physical geography,natural resources,environmental sciences,geographic information sciences,remote sensing and cartography.Manuscripts come from different parts of the world.2 Format and style Contributions should be typed on A4 paper using Times New Roman typeface in Word format,normally not exceeding 20,000 words.
文摘1 General information Journal of Geographical Sciences is an international academic journal that publishes papers of the highest quality in physical geography,natural resources,environmental sciences,geographic information sciences,remote sensing and cartography.Manuscripts come from different parts of the world.2 Format and style Contributions should be typed on A4 paper using Times New Roman typeface in Word format,normally not exceeding 20,000 words.3 Abstract and keywords The text should be preceded by an abstract of 200-300 words,which should be followed by 3-7keywords on a separate line.
