Hierarchical Gaussian Scale-Space on Androgenic Hair Pattern Recognition

Androgenic hair pattern stated to be the new biometric trait since 2014. The research to improve the performance of androgenic hair pattern recognition system has begun to be developed due to the problems that occurred when other apparent biometric trait such as face is hidden from sight. The recognition system was built with hierarchical Gaussian scale-space using 4 octaves and 3 levels in each octave. The system also implemented the equalization process to adjust image’s intensity by using histogram equalization. We analyzed 400 images of androgenic hair in the database that were analyzed using 2-fold and 10-fold cross validation and Euclidean distance to classify it. The experimental results showed that our proposed method gave better performance compared to previous work that used Haar wavelet transformation and principal component analysis as the main method. The best recognition precision was 94.23 % obtained from the base octave with the third level using histogram equalization and 10-fold cross validation. 

Biometric identification using augmented database

Androgenic hair pattern is one of the newest soft biometric trait that can be used to identify criminals when their faces are covered in the evidences of criminal investigation. In real-life situation, sometimes the available evidence is limited thus creating problems for authorities to identify criminal based on the limited data. This research developed the recognition system to identify individuals based on their androgenic hair pattern in a limited data situation in such a way that the limited images were expanded by the augmentation process. There were 50 images studied and expanded into 2.000 images from the augmentation process of rotating, reflecting, adjusting color and intensity. Furthermore, the effect of human skin color extraction was investigated by employing HSV and YCbCr color spaces. The scale-space hierarchy was built among the images with Gaussian function and produced 70% recognition precision that was around more than 2 times higher compared to system of recognition with only limited data

Biometric identification using augmented database

Androgenic hair pattern is one of the newest soft biometric trait that can be used to identify criminals when their faces are covered in the evidences of criminal investigation. In real-life situation, sometimes the available evidence is limited thus creating problems for authorities to identify criminal based on the limited data. This research developed the recognition system to identify individuals based on their androgenic hair pattern in a limited data situation in such a way that the limited images were expanded by the augmentation process. There were 50 images studied and expanded into 2.000 images from the augmentation process of rotating, reflecting, adjusting color and intensity. Furthermore, the effect of human skin color extraction was investigated by employing HSV and YCbCr color spaces. The scale-space hierarchy was built among the images with Gaussian function and produced 70% recognition precision that was around more than 2 times higher compared to system of recognition with only limited data

Biomedical Photoacoustic Imaging and Sensing Using Affordable Resources

The overarching goal of this book is to provide a current picture of the latest developments in the capabilities of biomedical photoacoustic imaging and sensing in an affordable setting, such as advances in the technology involving light sources, and delivery, acoustic detection, and image reconstruction and processing algorithms. This book includes 14 chapters from globally prominent researchers , covering a comprehensive spectrum of photoacoustic imaging topics from technology developments and novel imaging methods to preclinical and clinical studies, predominantly in a cost-effective setting. Affordability is undoubtedly an important factor to be considered in the following years to help translate photoacoustic imaging to clinics around the globe. This first-ever book focused on biomedical photoacoustic imaging and sensing using affordable resources is thus timely, especially considering the fact that this technique is facing an exciting transition from benchtop to bedside. Given its scope, the book will appeal to scientists and engineers in academia and industry, as well as medical experts interested in the clinical applications of photoacoustic imaging

Mammalian ear tissue regeneration

Holes punched in the ears of rabbits are repaired by regeneration of new tissues from blastemas and the unwounded tissues found at the periphery of the wounds. The biochemical, physiological, morphological and kinetic parameters of this regeneration have been investigated both to characterize the system and to show how the process is similar to embryonic development. The proportion of animals which successfully regenerated was greater in males than females, and in ovariectomized does given testosterone than in those given only corn oil carrier; yet the speed of closure did not differ in these groups. Holes in juveniles closed faster than holes in older animals. Second holes punched on the same site where earlier tissues had been regenerated closed earlier, had a thicker cartilage layer, and a higher success rate than primary punches indicating a \u27primary\u27 effect from the primary punch. Holes punched closer to the head were more successful than those punched distally and holes punched on the edge of the pinna did not regenerate. Regenerated hair reestablished the original color pattern, and the hair regenerating after punching through transplants of back skin to the ear had characteristics of back skin hair in color, length, and orientation. Other mammals were found capable of partial ear tissue regeneration when punches were made on the proximal pinna. Similar morphological characteristics were shared among the successful animals. Biochemical changes in collagen were monitored throughout the regeneration process and these changes were similar to those seen in the embryonic development of cartilage containing tissues. Type I collagen was found in skin and connective tissue and Type II in cartilage at day 0. Type II was not iv V found during early regeneration but Type I and two unusual types, Type I-Trimer, and Type Ill were found. Type II was found again once chondrogenesis began and the two unusual types were no longer found. Amounts of soluble collagen varied during the process and collagenase was inversely correlated with the changes in collagen. Similarities between regenerating tissues and embryonic supporting tissues were observed: Gallium-67 was found to localize in regenerating ear tissues, and a protein was found which cross-reacted with antibodies to both the high molecular weight and uteroglobin fractions of rabbit uterine flushings taken on day 5 post coitum. It is suggested that regenerating tissues exhibit a greater similarity to embryonic tissues than to tissues comprising a wound

Textbook of Plastic and Reconstructive Surgery

Written by experts from London’s renowned Royal Free hospital, Textbook of Plastic and Reconstructive Surgery offers a comprehensive overview of the vast topic of reconstructive plastic surgery and its various subspecialties for introductory plastic surgery and surgical science courses. The book comprises five sections covering the fundamental principles of plastic surgery, cancer, burns and trauma, paediatric plastic surgery and aesthetic surgery, and covers the breadth of knowledge that students need to further their career in this exciting field. Additional coverage of areas in which reconstructive surgery techniques are called upon includes abdominal wall reconstruction, ear reconstruction and genital reconstruction. A section on aesthetic surgery includes facial aesthetic surgery and blepharoplasty, aesthetic breast surgery, body contouring and the evolution of hair transplantation. The broad scope of this volume makes this a unique contribution to the field.Heavily illustrated throughout, Textbook of Plastic and Reconstructive Surgery is essential reading for anyone interested in furthering their knowledge of this exciting field