During the investigation of criminal activity when evidence is available, the issue at hand is determining the credibility of the video and ascertaining that the video is real. Today, one way to authenticate the footage is to identify the camera that was used to capture the image or video in question. While a very common way to do this is by using image meta-data, this data can easily be falsified by changing the video content or even splicing together content from two different cameras. Given the multitude of solutions proposed to this problem, it is yet to be sufficiently solved. The aim of our project is to build an algorithm that identifies which camera was used to capture an image using traces of information left intrinsically in the image, using filters, followed by a deep neural network on these filters. Solving this problem would have a big impact on the verification of evidence used in criminal and civil trials and even news reporting.
翻译:在有证据的情况下,在调查犯罪活动期间,手头的问题在于确定视频的可信度,确定视频的真实性。今天,验证视频的一个方法就是识别用于拍摄有关图像或视频的相机。虽然一种非常常见的方法是使用图像元数据,但通过改变视频内容,甚至将两个不同相机的内容拼凑在一起,这些数据很容易被伪造。鉴于为这一问题提出的解决办法很多,这个问题还有待充分解决。我们项目的目的是建立一个算法,用过滤器,然后是这些过滤器上的深层神经网络,用图像中固有的信息痕迹来识别哪些相机用来拍摄图像。解决这个问题将对刑事和民事审判中使用的证据的核查,甚至对新闻报道产生很大影响。