Detecting Photographic Composites of People
نویسندگان
چکیده
The compositing of two or more people into a single image is a common form of manipulation. We describe how such composites can be detected by estimating a camera’s intrinsic parameters from the image of a person’s eyes. Differences in these parameters across the image are used as evidence of tampering.
منابع مشابه
Detecting Photographic Composites of Famous People
Photos are commonly falsified by compositing two or more people into a single image. We describe how such composites can be detected by estimating a camera’s intrinsic parameters. Differences in these parameters across the image are then used as evidence of tampering. Expanding on earlier work, this approach is more applicable to low-resolution images, but requires a reference image of each per...
متن کاملImproving the economic value of photographic screening for optical coherence tomography-detectable macular oedema: a prospective, multicentre, UK study.
OBJECTIVES To determine the best photographic surrogate markers for detecting sight-threatening macular oedema (MO) in people with diabetes attending UK national screening programmes. DESIGN A multicentre, prospective, observational cohort study of 3170 patients with photographic signs of diabetic retinopathy visible within the macular region [exudates within two disc diameters, microaneurysm...
متن کاملDetecting photographic and computer generated composites
Nowadays, sophisticated computer graphics editors lead to a significant increase in the photorealism of images. Thus, computer generated (CG) images result to be convincing and hard to be distinguished from real ones at a first glance. Here, we propose an image forensics technique able to automatically detect local forgeries, i.e., objects generated via computer graphics software inserted in na...
متن کاملEigenFIT – the generation of photographic-quality facial composites
1. Abstract: The construction of facial composites by assembling individual facial features is common in criminal investigations. Arguably, the best known such method is E-FIT (electronic facial identication technique). However, although humans have excellent facial recognition ability, it is widely recognised that they often have great difficulty recalling facial characteristics in sufficient ...
متن کاملA comparison of photographic, replication and direct clinical examination methods for detecting developmental defects of enamel
BACKGROUND Different methods have been used for detecting developmental defects of enamel (DDE). This study aimed to compare photographic and replication methods with the direct clinical examination method for detecting DDE in children's permanent incisors. METHODS 110 8-10-year-old schoolchildren were randomly selected from an examined sample of 335 primary Shiraz school children. Modified D...
متن کامل