浅谈笔迹线条主动触觉在笔迹鉴定中的运用

笔迹是书写运动的轨迹,在观察静态特征的同时运用其动态特征,无疑可以提高笔迹鉴定的水平。但如何获取字迹的书写压力、书写速度和加速度等动态特征,目前还是个难题。笔迹心理学中笔迹线条主动触觉的分析是将笔迹书写时的压力与速度贯穿于字迹观察分析的始终,将其运用于笔迹鉴定,可在传统的笔迹鉴定二维平面字迹特征的视觉观察分析模式基础上,将视觉观察与触觉体验相结合,形成字迹形态二维平面特征与书写时笔向下的力度,和沿笔画书写的速度相结合的四维特征观察分析模式。     

中文签名笔迹动态特征研究

从物理学角度看,笔迹是书写工具在力的作用下在载体上形成的运动轨迹.作用力和速度的大小和变化构成了书写运动的动态特征.本文以签名笔迹为对象,研究签名笔迹的动态特征及其属性.实验结果表明动态特征能够作为认定书写人,鉴别摹仿签名的重要依据.     

中文签名笔迹动态特征研究

从物理学角度看,笔迹是书写工具在力的作用下在载体上形成的运动轨迹。作用力和速度的大小和变化构成了书写运动的动态特征。本文以签名笔迹为对象,研究签名笔迹的动态特征及其属性。实验结果表明：动态特征能够作为认定书写人,鉴别摹仿签名的重要依据。     

中文签名笔迹动态特征研究

从物理学角度看,笔迹是书写工具在力的作用下在载体上形成的运动轨迹.作用力和速度的大小和变化构成了书写运动的动态特征.本文以签名笔迹为对象,研究签名笔迹的动态特征及其属性.实验结果表明:动态特征能够作为认定书写人,鉴别摹仿签名的重要依据.     

中文签名笔迹动态特征研究

从物理学角度看,笔迹是书写工具在力的作用下在载体上形成的运动轨迹.作用力和速度的大小和变化构成了书写运动的动态特征.本文以签名笔迹为对象,研究签名笔迹的动态特征及其属性.实验结果表明:动态特征能够作为认定书写人,鉴别摹仿签名的重要依据.     

论汉字笔迹的笔顺特征——从书写动作系统性进行研究

笔顺特征是汉字笔迹特征的重要组成部分,是书写习惯动态关系的特点的重要表现形式,在笔迹鉴定中具有重要的价值。本文从书写动作系统出发,对笔迹的笔顺特征进行动态的、全面的分析,目的在于深入认识笔迹的笔顺特征及其价值,为笔迹特征系统的完善和科学的运用提供理论依据。     

签名笔迹动态特征的理论研究

本文以签名笔迹为研究对象,提取书写过程中的动态特征,在此基础上,对签名笔迹动态特征的概念和属性进行了深入的探讨,构建了一套较为完整的签名笔迹动态特征的理论系统。     

论汉字笔迹的起、收笔特征——从书写动作系统性方面进行研究

本文通过对书写动作的系统分析,从而对笔迹的起、收笔特征进行动态的、全面的分析,目的在于深入的认识笔迹的起、收笔特征及其价值,为笔迹特征系统的完善和科学的运用提供理论依据。     

练习摹仿笔迹特征鉴定价值分析及同一认定条件

练习摹仿笔迹鉴定是笔迹鉴定中比较难的一种，但在司法实践中又比较常见，在借据、收据、签名、批示笔迹的书写上常常被作案人采用。本文对练习摹仿笔迹的特征及其鉴定价值进行了分析，并总结出作为一般规律的识别要素，以期对练习摹仿笔迹的鉴定提供一定的参考依据。     

浅谈左手书写者左右手笔迹的特点及变化规律

目的为左手书写者左手笔迹及右手笔迹的检验鉴定提供参考依据。方法收集左手书写者的左手正常笔迹和其右手笔迹,进行比对检验和实验数据统计分析。探讨左手书写者左手笔迹和右手笔迹的特点及变化规律。将左手书写者的左、右手笔迹的特点和变化规律与右手书写者的右、左手笔迹的特点和变化规律进行比较。结果左手书写者的左手笔迹和右手笔迹在笔顺、写法、错别字等特征上保持稳定。结论左手书写者的笔迹检验应结合其左手笔迹和右手笔迹的特点和变化规律,并注意其与右手书写者的右手笔迹和左手笔迹的特点和变化规律的区别与联系。     

汉英文字笔迹特征的比较研究

目的更深入的了解不同国家、地区,不同文种,不同文化背景下的笔迹鉴定工作者对特定文字笔迹鉴定认识的差别。方法以中英文为例,对汉字和英文的特点和笔迹特征进行比较研究。结论汉英文字的笔迹特征分类体系大体相似,并无质的差别,但是不同文字的特点决定了其笔迹特征取向与侧重、价值评断、个别特征的使用率,以及对同一人笔迹特征多样变化的认识上还是有所区别,各具特色。     

卧姿笔迹特征的实验研究

目的为卧姿笔迹鉴定提供识别和评断的参考依据。方法比较108个不同书写水平者的仰卧、左侧卧、右侧卧及俯卧笔迹与正常坐姿笔迹特征上的异同点,通过大量实验数据的统计分析,总结出卧姿笔迹特征及其变化规律,探讨可能的变化原因,并分析卧姿笔迹检验的要点。结果卧姿笔迹在字体、写法、错别字、笔顺、字间组合和单字的基本搭配比例等特征上较稳定。这些特征可作为本质特征使用。4种卧姿中,俯卧笔迹特征最稳定;书写水平高者笔迹特征也较稳定。结论卧姿笔迹鉴定应结合卧姿笔迹特征变化规律,准确判断笔迹的形成条件,去伪存真,做出科学的评断。     

On the discriminability of the handwriting of twins

As handwriting is influenced by physiology, training, and other behavioral factors, a study of the handwriting of twins can shed light on the individuality of handwriting. This paper describes the methodology and results of such a study where handwriting samples of twins were compared by an automatic handwriting verification system. The results complement that of a previous study where a diverse population was used. The present study involves samples of 206 pairs of twins, where each sample consisted of a page of handwriting. The verification task was to determine whether two half-page documents (where the original samples were divided into upper and lower halves) were written by the same individual. For twins there were 1236 verification cases -- including 824 tests where the textual content of writing was different, and 412 tests where it was the same. An additional set of 1648 test cases were obtained from handwriting samples of nontwins (general population). To make the handwriting comparison, the system computed macro features (overall pictorial attributes), micro features (characteristics of individual letters), and style features (characteristics of whole-word shapes and letter pairs). Four testing scenarios were evaluated: twins and nontwins writing the same text and writing different texts. Results of the verification tests show that the handwriting of twins is less discriminable than that of nontwins: an overall error rate of 12.91% for twins and 3.7% for nontwins. Error rates with identical twins were higher than with fraternal twins. Error rates in all cases can be arbitrarily reduced by rejecting (not making a decision on) borderline cases. A level of confidence in the results obtained is given by the fact that system error rates are comparable to that of humans (lower than that of lay persons and higher than that of questioned document examiners [QDEs]).     

Investigation of class characteristics in English handwriting of the three main racial groups: Chinese, Malay and Indian in Singapore

This paper investigated the class characteristics in English handwriting of the Chinese, Malays and Indians in Singapore, many of whom learned their native language as a second language. One hundred and fifty-four handwriting exemplars were collected and features such as letter designs, pen-lifts, letter spacing and embellishments were studied. A number of characteristic features peculiar to the individual racial group were identified, which confirmed the impact of their native language writing systems on English handwriting.     

Identification of the Class Characteristics in the Handwriting of Polish People Writing in English

Abstract: An investigation was carried out to identify the class characteristics of Polish people writing in English and to specifically identify those characteristics that separate Polish handwriting from English handwriting. In the first stage, 40 Polish and 40 English handwriting samples were collected and systematically examined. In total, 31 features were identified that occurred in ≥25% of the Polish handwriting samples and therefore considered class characteristics. Of these, chi‐square analyses identified 21 class characteristics that occurred significantly more in Polish compared to English handwriting. Twenty‐one of the class characteristics in the Polish handwriting had similar constructions to the copybook pattern thus supporting the theory that class characteristics frequently stem from the taught writing system. In the second stage, an algorithm was developed using seventeen of the class characteristics that successfully discriminated between a further 13 Polish and 12 English handwriting samples.     

对一起右手食指缺损笔迹的检验

通过一起右手食指缺损笔迹的检验，研究执笔机理。对右手食指缺损后对其书写运动形式的影响、笔迹特点及检验时注意事项作了一些有益的探讨。     

书写习惯未定型成年人笔迹检验

目的研究书写习惯未定型成年人笔迹的检验方法。方法通过实例研究分析成年人笔迹变化的特点和原因,确定笔迹性质和检验方法。结果书写习惯未定型也是成年人笔迹变化的重要原因。书写习惯未定型成年人笔迹是成年人正常笔迹的例外,适用正常笔迹检验方法。结论本研究确立了检材笔迹与样本笔迹非本质差异的判断标准,适用于短时间内变化较大的成年人笔迹的同一认定。     

论自我摹写笔迹及其鉴定

探讨自我摹写笔迹的特殊机理、特殊书写方式、特殊规律、特殊鉴定方法和标准,论述摹写与仿写的不同概念、不同书写方式、不同书写机理、不同书写结果等若干基本问题;归纳自我摹写笔迹的四个特点及其相应的特点规律并总结了鉴定识别的要点;第三部份探讨了鉴定此类笔迹的特殊方法与鉴定结论的标准问题。