잡았다 '합성 사진'…위•변조 잡아내는 소프트웨어 국내 최초 개발<br /><br />With the use of modern technology, doctored videos and images can be made to look like they are real.<br />These are called 'deepfakes' and are becoming a problem.<br />But now, there is a new type of software that can detect whether a picture or video has been edited.<br />The aim is to prevent certain types of digital sex crimes such people having their faces being superimposed into inappropriate, often pornographic material.<br />Jang Tae-hyun explains.<br />A video of dinosaurs roaming the streets.<br />Is this real or fake?<br />'KAICATCH', a new type of software, developed by researchers from the Korea Advanced Institute of Science and Technology, can determine exactly that.<br />The software was recently put into practical use for the first time in South Korea, and only the second time globally.<br />It can find every minor change by analyzing the pixels... like every copy, paste or delete.<br />The green part indicates that this section has been edited.<br />"The previous software could not detect random images. Out of 100 pictures, the accuracy was 5 to 10 percent. However, this new software has 70 to 80 percent accuracy."<br />'Deepfake' is a technique that uses artificial intelligence to edit faces within pictures or videos to get as close to reality as possible.<br />This can be a problem if used inappropriately.<br />For example, some people might superimpose a celebrity's face into a pornographic video... an issue which has become prevalent with female K-pop stars in particular falling victim to these types of crimes.<br />To prevent this from happening, the research team collected around 300-thousand pictures over a five-year period to help improve its detecting skills.<br />"We used artificial intelligence to develop the software. Previously, we could only detect one change with one type of technology. But now, we can detect up to 5 kinds or 20 algorithms at once and even find out which part has been edited."<br />The research team is planning to commercialize the program by the end of this year... and aims to prevent crimes related to deepfakes.<br />Jang Tae-hyun, Arirang News.<br />
