Blar i Institutt for datateknologi og informatikk på forfatter "Ramachandra, Raghavendra"
-
Cross-sensor periocular biometrics in a global pandemic: Comparative benchmark and novel multialgorithmic approach
Alonso-Fernandez, Fernando; Raja, Kiran; Ramachandra, Raghavendra; Busch, Christoph; Bigun, Josef; Vera-Rodriguez, Ruben; Fierrez, Julian (Peer reviewed; Journal article, 2022)The massive availability of cameras and personal devices results in a wide variability between imaging conditions, producing large intra-class variations and a significant performance drop if images from heterogeneous ... -
MIPGAN—Generating Strong and High Quality Morphing Attacks Using Identity Prior Driven GAN
Zhang, Haoyu; Venkatesh, Sushma; Ramachandra, Raghavendra; Raja, Kiran; Damer, Naser; Busch, Christoph (Journal article; Peer reviewed, 2021)Face morphing attacks target to circumvent Face Recognition Systems (FRS) by employing face images derived from multiple data subjects (e.g., accomplices and malicious actors). Morphed images can be verified against ... -
Morph-PIPE: Plugging in Identity Prior to Enhance Face Morphing Attack Based on Diffusion Model
Zhang, Haoyu; Ramachandra, Raghavendra; Bylappa Raja, Kiran; Busch, Christoph Günther (Journal article, 2023) -
Morphing Attacks and Detection using Spectral Images
Aryal, Himali (Master thesis, 2022)Face recognition systems assume that a person's face serves as the unique link to identify them. A morph attack happens when two people with similar facial features morph their faces together, resulting in a face image ... -
On the Applicability of Synthetic Data for Face Recognition
Zhang, Haoyu; Grimmer, Marcel; Ramachandra, Raghavendra; Bylappa Raja, Kiran; Busch, Christoph (Chapter, 2021)Face verification has come into increasing focus in various applications including the European Entry/Exit System, which integrates face recognition mechanisms. At the same time, the rapid advancement of biometric ... -
Pixel-wise supervision for presentation attack detection on identity document cards
Mudgalgundurao, Raghavendra; Schuch, Patrick; Raja, Kiran; Ramachandra, Raghavendra; Damer, Naser (Peer reviewed; Journal article, 2022)Identity documents (or IDs) play an important role in verifying the identity of a person with wide applications in banks, travel, video-identification services and border controls. Replay or photocopied ID cards can be ... -
A response to the European Data Protection Supervisor ‘Misunderstandings in Biometrics’ by the European Association for Biometrics
Busch, Christoph; Czajka, Adam; Deravi, Farzin; Drozdowski, Pawel; Gomez‐Barrero, Marta; Hasse, Georg; Henniger, Olaf; Kindt, Els; Kolberg, Jascha; Nouak, Alexander; Raja, Kiran; Ramachandra, Raghavendra; Rathgeb, Christian; Salomon, Jean; Veldhuis, Raymond Nicolaas Johan (Peer reviewed; Journal article, 2021)The intention of this position paper is to comment on the joint European Data Protection Supervisor (EDPS)-Agencia Española de Protección de Datos (aepd) publication ‘14 Misunderstandings with regard to Biometric Identification ... -
Towards Blockchain-based GDPR compliant Online Social Networks: Challenges, Opportunities and Way Forward
Ahmed, Javeed; Yildirim Yayilgan, Sule; Ramachandra, Raghavendra; Abomhara, Mohamed Ali Saleh; Nowostawski, Mariusz (Peer reviewed; Journal article, 2019)Online Social Networks (OSNs) are very popular and widely adopted by the vast majority of Internet users across the globe. Recent scandals on the abuse of users’ personal information via these platforms have raised serious ... -
Towards generalized morphing attack detection by learning residuals
Raja, Kiran; Gupta, Gourav; Venkatesh, Sushma; Ramachandra, Raghavendra; Busch, Christoph (Peer reviewed; Journal article, 2022)Face recognition systems (FRS) are vulnerable to different kinds of attacks. Morphing attack combines multiple face images to obtain a single face image that can verify equally against all contributing subjects. Various ...