Direct view optics model for facial identification

2007 ◽  
Author(s):  
Ronald G. Driggers ◽  
Steve Moyer ◽  
Keith Krapels ◽  
Lou Larsen ◽  
Jonathan Fanning ◽  
...  
Keyword(s):  
Direct View ◽  
Facial Identification

Field verification of the direct view optics model for human facial identification

2009 ◽  
Author(s):  
Sameer Aghera ◽  
Keith Krapels ◽  
Jonathan Hixson ◽  
Joseph P. Reynolds ◽  
Ronald G. Driggers
Keyword(s):  
Field Verification ◽  
Direct View ◽  
Facial Identification

scholarly journals The Alexis® system for laparoscopic splenectomy in pediatric patients

2021 ◽  
Author(s):  
Emanuele Trovalusci ◽  
Marco Gasparella ◽  
Cristina Pizzato ◽  
Paola Midrio
Keyword(s):  
Idiopathic Thrombocytopenic Purpura ◽  
Epidermoid Cyst ◽  
Laparoscopic Splenectomy ◽  
Pediatric Patients ◽  
Organ Size ◽  
Spleen Size ◽  
Thrombocytopenic Purpura ◽  
Direct View ◽  
Patient Organ ◽  
Retrieval Bag

AbstractThe laparoscopic splenectomy in pediatric patients is performed worldwide but often the disproportion between size of patients and size of organs requires an extra laparotomic access for spleen removal. The aim of the present study was to evaluate the safety and effectiveness of the Alexis® system to retrieve the spleen without additional laparotomic access. The charts of all patients who underwent splenectomy at our center during the last 5 years were retrieved. In all the cases the Alexis® system was placed in the umbilicus, thru which a 10 mm camera was inserted. Three additional 5 mm standard trocars were inserted. Seven patients, affected by spherocytosis (3), epidermoid cyst (2), idiopathic thrombocytopenic purpura (2) and thalassemia (1), underwent laparoscopic splenectomy at a median age of 10 years (range: 8–17). Median patients’ weight was 32.5 kg (range: 25–71) and spleen size 15 cm (11–18). In all the cases, upon removal of the camera, the retrieval bag was inserted thru the umbilicus under direct view, the spleen retrieved, morcellated, and removed. No conversion nor enlargement of one of the ports nor an extra laparotomic access were required. The patients were discharged on the fifth post-operative day and the cosmetic results were excellent. Removal of the spleen can be safely performed without any additional laparotomy thru the Alexis® system placed in the umbilicus. This system is effective also in case of major patient/organ size disproportion and the final cosmetic aspect is excellent.

Direct View on the Origin of High Li + Transfer Impedance in All‐Solid‐State Battery

2021 ◽  
pp. 2103971
Author(s):  
Liting Yang ◽  
Xiao Li ◽  
Ke Pei ◽  
Wenbin You ◽  
Xianhu Liu ◽  
...  
Keyword(s):  
Solid State ◽  
Transfer Impedance ◽  
Solid State Battery ◽  
Direct View

Magnetic position sensors

2021 ◽  
Author(s):  
Pavel Ripka ◽  
Mehran Mirzaei ◽  
Josef Blažek
Keyword(s):  
Elastic Wave ◽  
Mixed Reality ◽  
Automotive Applications ◽  
Field Source ◽  
Optical Instruments ◽  
Direct View ◽  
Field Sensor ◽  
Underwater Navigation ◽  
Ac Field ◽  
Hall Sensors

Abstract Magnetic position sensors are popular in industrial and automotive applications since they are robust, resistant to dust and oil and they can be cheap. However, precise magnetic position sensors can achieve 0.015 % accuracy and 10 nm resolution. The maximum achievable range is about 20 m. DC magnetic position sensors are using a permanent magnet as a field source. As a field sensor, magnetoresistors are often used instead of traditional Hall sensors. Eddy current sensors work also with non-magnetic conduction targets. Magnetostrictive sensors are based on the time-of-flight of the elastic wave excited in the magnetostrictive material. The sensors can be several meters long and their applications range from level meters to hydraulics. Magnetic trackers and long-range position sensors utilize AC field sources, which are detectable from distances up to 20 m. Compared to optical instruments magnetic trackers do not need direct view. Their applications include surgery, mixed reality, and underground and underwater navigation.

scholarly journals RADIO FREQUENCY IDENTIFICATION AND IMAGE-BASED FACIAL IDENTIFICATION AS AN EMPLOYEE ATTENDANCE SYSTEM

2020 ◽  
Vol 2 (1) ◽  
pp. 18-26
Author(s):  
Raden Andy Kurniawan ◽  
Umar Zaky
Keyword(s):  
Radio Frequency ◽  
Programming Languages ◽  
Radio Frequency Identification ◽  
Personal Data ◽  
Data Retrieval ◽  
Application Development ◽  
Existing Problems ◽  
Frequency Identification ◽  
Employee Attendance ◽  
Facial Identification

The current development of microcontroller technology can be used to build a presence system for employees. The employee attendance system uses radio frequency identification and facial identification which is designed and built to make it easier to do attendance data recording, so that the data obtained can be precise and accurate. Data collection techniques, namely by interview and observation. The application development process uses the PHP and Python programming languages ​​with Visual Studio Code software applications, Arduino Uno, MySQL software as a database server, and XAMPP as a support. The input used in this system is the employee's personal data and the results of employee face data retrieval which are stored in the .jpg format. The faces taken were taken from 4 people where each face was taken 20 face samples. The results are in the form of web and applications that will provide solutions to existing problems. The conclusion of this application makes it easy to do the recording and attendance, and minimize the fraud committed by employees. Retrieval of face data was taken as much as 20 data with the highest level of accuracy was 87% when the presence test was carried out.

scholarly journals Optimized Multi-Model Biometric Based Human Authentication using Deep Neural Network

2019 ◽  
Vol 8 (3S3) ◽  
pp. 280-290
Keyword(s):  
Neural Network ◽  
Deep Neural Network ◽  
Histogram Equalization ◽  
Extraction Process ◽  
Input Image ◽  
Suggested Approach ◽  
Biometric Systems ◽  
Recognition Systems ◽  
The Right ◽  
Facial Identification

Biometrics provides greater security and usability than conventional personal authentication methods. Fingerprints, facial identification systems and voice recognition systems are the features that biometric systems can use. To improve biometric authentication, the proposed method considered that the input image is iris and fingerprint; at first, pre-processing is performed through histogram equalization for all image inputs to enhance the image quality. Then the extraction process of the feature will be performed. The suggested method uses modified Local Binary Pattern (MLBP), GLCM with orientation transformation, and DWT features next to the extracted features to be combined for feature extraction. Then the optimum function is found with the Rider Optimization Algorithm (ROA) for all MLBP, GLCM and DWT. Eventually, the approach suggested is accepted. Deep Neural Network (DNN) performs the proposed authentication process. A DNN is a multilayered artificial neural network between the layers of input and output. The DNN finds the right mathematical manipulation to turn the input into the output, whether it is an acknowledged image or not. Suggested process quality is measured in terms of reliability recognition. In the MATLAB platform, the suggested approach is implemented.

Scenography and Submedial Space: Frank Castorf's Final Destination America (2000) and Forever Young (2003) at the Volksbühne Berlin

2007 ◽  
Vol 32 (1) ◽  
pp. 49-67 ◽  
Author(s):  
KLAUS VAN DEN BERG
Keyword(s):  
Walter Benjamin ◽  
Visual Space ◽  
Live Performance ◽  
Final Destination ◽  
Political Critique ◽  
Direct View ◽  
Spatial Configurations ◽  
Mediated Images ◽  
Performance Strategies

German director Frank Castorf and his designer Bert Neumann have created a series of productions that have altered the dramaturgy of visual space. Their scenography integrates stage space with other spaces mediated by technology and interlocks taped and/or live mediated images with live performance. Castorf exposes spaces hidden from the audience's direct view to address the question of what ‘truth’ inheres in an image. The philosopher Boris Groys has called this spatial dramaturgy ‘submedial space’. I flesh out Groy's concept with reference to the writings of Walter Benjamin and analyse how Castorf and Neumann create such spaces through performance strategies that blend live and mediated elements. Using Castorf's productions of Final Destination America (2000) and Forever Young (2003) at the Volksbühne Berlin as examples, I argue that the multilayered images and complex spatial configurations thereby created effectively serve Castorf's purposes of political critique.

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