A Novel Forged Image Detection Method Using the Characteristics of Interpolation

Development of digital image‐editing programs has enabled us to be widely exposed to forged digital images surrounding us. Such forged images have been dispersed through the Internet, newspaper articles, and magazines, and in particular, the information contained in these unverified images happened to be regarded as true. As a result, the forged images provided wrong information for individuals and society, thus sometimes creating social issues. In order to solve such problems, this study was aimed to suggest the methods of identifying the veracity of forged images. In this way, it suggested re‐interpolation algorithm. Namely, the study re‐interpolated in identical arbitrary values both the interpolated and un‐interpolated regions based on the interpolation used a lot in forged, confirmed discrete fourier transform (DFT) characteristics of these two regions, and embodied a detection map for the final forged images, using the subtraction value between two regions in DFT characteristics.     

The Baku 2015 European Games as a national milestone of post-Soviet Azerbaijan

The Baku European Games, the first multi-sport mega-event held at a European level, was a major public relations undertaking by Azerbaijan. The games were framed by a trend involving large-scale sports events promoted by the Ilham Aliyev government, based on the profits of the second oil boom in the twenty-first century. The sports event served to internationally portray Azerbaijan as a rapidly developing country and in this way to increase national consciousness within the society, which was lacking a collective narrative in the post-Soviet era. Nonetheless, the downturn due to the fall of international oil prices negatively affected the impact of the sports mega-event. Moreover, the sports competition symbolized the government’s commitment to impose reasons of state and nation-building over social needs and political freedoms in Azerbaijan. This article is based on empirical fieldwork carried out in Baku in the months following the multi-sports event.     

游客形象对中国公共外交的影响分析

中国已经成为世界第一旅游消费大国,庞大的出国人群原本可以成为公共外交的使者和国家形象的代言人,遗憾的是,此起彼伏的中国游客不文明行为,不仅引起目的地居民的反感,而且降低了中国政府公共外交的可信度,使国家形象受损。在全民外交时代,应加强对游客形象问题的研究,探究其对公共外交的影响程度,充分发挥个体在公共外交中的积极作用。     

论侦查假设在视频图像侦查中的运用

在信息化背景下,视频图像侦查已经成为刑侦部门打击和预防犯罪的重要方法之一。在视频图像侦查中,侦查人员针对采集的视频图像信息运用侦查假设的方法进行研判分析,挖掘出侦查线索,化解侦查僵局,切实推进侦查工作的进程。因此,有必要以大量视频图像侦查成功案例为素材,系统地对侦查假设在视频图像侦查中运用的工作流程进行梳理和总结,从人、案情、通信工具、交通工具、现场痕迹物证和光影六个方面提出假设并验证假设。     

Individual Camera Identification Using Correlation of Fixed Pattern Noise in Image Sensors

Abstract:  This paper presents results of experiments related to individual video camera identification using a correlation coefficient of fixed pattern noise (FPN) in image sensors. Five color charge-coupled device (CCD) modules of the same brand were examined. Images were captured using a 12-bit monochrome video capture board and stored in a personal computer. For each module, 100 frames were captured. They were integrated to obtain FPN. The results show that a specific CCD module was distinguished among the five modules by analyzing the normalized correlation coefficient. The temporal change of the correlation coefficient during several days had only a negligible effect on identifying the modules. Furthermore, a positive relation was found between the correlation coefficient of the same modules and the number of frames that were used for image integration. Consequently, precise individual camera identification is enhanced by acquisition of as many frames as possible.     

重叠指纹分离方法比较

目的探讨各种重叠指纹分离方法的优劣。方法选取实践中常用方法对重叠指纹进行分离。结果各种方法分离重叠指纹均能达到理想效果,尤其以计算机分离方法适用范围最广、效果最佳。结论计算机重叠指纹分离方法具有较强的现实意义和广阔的应用前景。     

红外线合成图像在变造文件检验中的应用与分析

在文件检验中,黑白红外线照相是一种检验变造文件的方法,然而,在某些情况下效果欠佳。为了提高检验的准确性,不妨可以应用红外线合成图像的方法。应用Photoshop图像处理方法,根据红外线彩色照相的感光原理和色彩再现过程,对数码照相机拍摄的可见光图像和红外线图像进行适当处理,即可生成红外线合成图像。这种图像可以反映字迹对可见光和红外线的吸收与反射情况,通过判断字迹颜色有否改变来检验书写色料的异同。由此可见,利用红外线合成图像方法检验某些变造文件,可以获得黑白红外线照相无法得到的检验结果,这对提高鉴定结论的准确性具有实际应用价值。     

新形势下政府能力开发与提升探索

随着经济全球化趋势不断增强,政府在社会经济可持续发展中的地位和作用越来越重要,政府能力已成为实现经济发展和社会进步不可或缺的资源,是国家竞争力和国家持续发展能力的重要组成部分。政府能力提升既是一个重要的理论问题,又是一个重要的现实问题。我国在建设"四位一体"的社会主义现代化国家进程中,应充分重视政府能力建设,通过深化改革开放,不断提升政府经济管理能力、社会动员能力、社会服务能力与文化倡导能力。     

严格履行宪法法律赋予职权公正审理涉外海事案件

广州海事法院自成立以来,严格履行宪法法律赋予职权,维护国家司法主权与海洋权益,依法公正行使审判权,高效化解涉外纠纷,不断加强对外宣传和司法公开,对在国际社会上逐步树立中国司法的良好形象发挥了有效作用.     

论警察公关传播机制

公共关系是一门传播的艺术,是组织运用传播手段协调与公众关系的行为。因此,建立有效的传播机制,对于推进公关建设有着非常重要的意义。文章论述了警察传播机制建设的途径,通过科学警察机制的建立,必将在深入警察公关建设的同时,更好地塑造警察组织的形象。