Universal Identity Independent Face Counter-spoofing
| dc.contributor.author | Rao, Balaji K | |
| dc.date.accessioned | 2023-05-08T07:49:15Z | |
| dc.date.accessioned | 2023-10-20T07:26:42Z | |
| dc.date.available | 2023-05-08T07:49:15Z | |
| dc.date.available | 2023-10-20T07:26:42Z | |
| dc.date.issued | 2023 | |
| dc.description | Supervisor: Karthik, Kannan | en_US |
| dc.description.abstract | "Owing the ubiquitous deployment of face-recognition units at various points, ""face-masquerading"" is certainly possible via synthetic facial-imitations of some target individual. These ""imitations"" can be executed either in a crude way with a planar print/digital image or in a much more sophisticated manner via ""prosthetics"". Since the spoofing modality/type is hard to predict, what is well understood is the INTRINSIC NATURAL FACE-SPACE.Furthermore, counterspoofing should operate at a layer where subject-content must be ignored. What should be learnt is the high-level presentation form of the face or face-like object presented to the still-camera. On this front, a CONTIGUOUS RANDOM SCAN based architecture is proposed and deployed to build a content-agnostic/subjectindependent model for the NATURAL FACE CLASS ALONE. Works effectively against planar-spoofing and even prosthetics despite depth variability (due to the one-mask-fits-many, over-smoothing constraint). The ""contiguous random scan"" is a technology transfer from an application invented by Matias and Shamir (1987) which involved application of SPACE FILLING CURVES for compressing encrypted videos. As second contribution, to attack PRINT-SPOOF-presentations, a CONTRAST REDUCTIONISTIC IMAGE LIFE-TRAIL based on ITERATIVE FUNCTIONAL MAPS is proposed, to segregate natural contrast rich faces with SELF-SHADOWS from PRINT-SPOOF-presentations. NATURAL face-images tend to have longer LIFE-trails as compared to PRINT-SPOOF-images." | en_US |
| dc.identifier.other | ROLL NO.126102032 | |
| dc.identifier.uri | https://gyan.iitg.ac.in/handle/123456789/2358 | |
| dc.language.iso | en | en_US |
| dc.relation.ispartofseries | TH-3038; | |
| dc.subject | Face Counterspoofing | en_US |
| dc.subject | Outlier Model | en_US |
| dc.subject | Random Scan | en_US |
| dc.subject | Image Life Trails | en_US |
| dc.title | Universal Identity Independent Face Counter-spoofing | en_US |
| dc.type | Thesis | en_US |
Files
License bundle
1 - 1 of 1