Podcast #61 Recap: Digital Image Authenticity And Integrity With Amped Authenticate

Marco Fontani from Amped Software joined Si and Desi to talk about digital image authenticity and integrity. Together they delved into the world of digital image forensics and discussed Amped Authenticate.

Click here to watch the full episode.

Key Points:

  • The rise of deep fakes and fake pictures has made it necessary to assess the trustworthiness of visual evidence.
  • Amped Authenticate is a software that focuses on verifying the integrity and authenticity of images, and it is now expanding to support video analysis.
  • The integrity of an image refers to its completeness and unaltered state since acquisition, while authenticity refers to its accuracy in representing what it claims to be.
  • The use of artificial intelligence and computational photography in smartphones poses challenges for image integrity analysis, as the initial image undergoes alterations before being saved. Amped Authenticate aims to detect modifications that occur after the initial capture.
  • Amped Authenticate employs a Fourier analysis filter to identify moiré effects caused by recapturing images from high-resolution monitors. This technique helps flag images that may have been taken from screens.
  • Camera ballistics analysis is a feature in Amped Authenticate that helps identify the make and model of a camera used to capture an image. It utilizes metadata and a dataset of JPEG quantization tables to provide information about the source device.
  • Amped Authenticate can detect the use of tools like Liquefy in image manipulation, but the detection efficacy depends on post-manipulation actions like compression and resizing.
  • Amped Authenticate offers batch processing features to save time when analyzing large volumes of images.
  • Amped Authenticate emphasizes the importance of red flags and reasonable hypotheses when analyzing images. While certain filters and techniques can provide indications of tampering or recapturing, they do not guarantee definitive conclusions and require expert judgment.
  • Ongoing research and development are necessary to address the challenges posed by evolving technologies and ensure the reliability of forensic image analysis techniques.

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