173 research outputs found
Biometric Face Recognition Based on Enhanced Histogram Approach
Biometric face recognition including digital processing and analyzing a subject's facial structure. This system has a certain number of points and measures, including the distances between the main features such as eyes, nose and mouth, angles of features such as the jaw and forehead with the lengths of the different parts of the face. With this information, the implemented algorithm creates a unique model with all the digital data. This model can then be compared with the huge databases of images of the face to identify the subject. The recognition features are retrieved here using histogram equalization technique. A high-resolution result is obtained applying this algorithm under the conditions of a specific image database.
Evaluating Novel Mask-RCNN Architectures for Ear Mask Segmentation
The human ear is generally universal, collectible, distinct, and permanent.
Ear-based biometric recognition is a niche and recent approach that is being
explored. For any ear-based biometric algorithm to perform well, ear detection
and segmentation need to be accurately performed. While significant work has
been done in existing literature for bounding boxes, a lack of approaches
output a segmentation mask for ears. This paper trains and compares three newer
models to the state-of-the-art MaskRCNN (ResNet 101 +FPN) model across four
different datasets. The Average Precision (AP) scores reported show that the
newer models outperform the state-of-the-art but no one model performs the best
over multiple datasets.Comment: Accepted into ICCBS 202
Fant\^omas: Understanding Face Anonymization Reversibility
Face images are a rich source of information that can be used to identify
individuals and infer private information about them. To mitigate this privacy
risk, anonymizations employ transformations on clear images to obfuscate
sensitive information, all while retaining some utility. Albeit published with
impressive claims, they sometimes are not evaluated with convincing
methodology.
Reversing anonymized images to resemble their real input -- and even be
identified by face recognition approaches -- represents the strongest indicator
for flawed anonymization. Some recent results indeed indicate that this is
possible for some approaches. It is, however, not well understood, which
approaches are reversible, and why. In this paper, we provide an exhaustive
investigation in the phenomenon of face anonymization reversibility. Among
other things, we find that 11 out of 15 tested face anonymizations are at least
partially reversible and highlight how both reconstruction and inversion are
the underlying processes that make reversal possible
Visual-tactile sensory map calibration of a biomimetic whiskered robot
© 2016 IEEE. We present an adaptive filter model of cerebellar function applied to the calibration of a tactile sensory map to improve the accuracy of directed movements of a robotic manipulator. This is demonstrated using a platform called Bellabot that incorporates an array of biomimetic tactile whiskers, actuated using electro-active polymer artificial muscles, a camera to provide visual error feedback, and a standard industrial robotic manipulator. The algorithm learns to accommodate imperfections in the sensory map that may be as a result of poor manufacturing tolerances or damage to the sensory array. Such an ability is an important pre-requisite for robust tactile robotic systems operating in the real-world for extended periods of time. In this work the sensory maps have been purposely distorted in order to evaluate the performance of the algorithm
Whisking with robots from rat vibrissae to biomimetic technology for active touch
This article summarizes some of the key features of the rat vibrissal system, including the actively controlled sweeping movements of the vibrissae known as whisking, and reviews the past and ongoing research aimed at replicating some of this functionality in biomimetic robots
- …