Dissertation > Excellent graduate degree dissertation topics show

Research and Optimized Implementation of Eye Tracking Technology

Author: LiuTao
Tutor: WangJunNing
School: Xi'an University of Electronic Science and Technology
Course: Communication and Information System
Keywords: Eye Tracking Location of Pupil Center Blink Detection Accuracy Optimization
CLC: TP391.41
Type: Master's thesis
Year: 2011
Downloads: 143
Quote: 0
Read: Download Dissertation

Abstract


Eye tracking, also called line of sight tracking systems is one of the keytechnologies of intelligent human-computer interface in the future. It has a broaddevelopment prospects in both military and civilian areas, so it becomes front directionwith great attention in resent years.At first, this thesis introduces the background of eye tracking system, and provesthe necessity of using this technology in high-tech industries research.Next this thesis proposes systematic framework, introduces the calibration methodused, and describes improving methods of pupil center localization based on start burstspecifically: preprocessing collected gray eyes picture at first, then calculating theapproximate location of the pupil center according to adaptive threshold binary imageobtained by histogram, and looking for the corneal reflection spots central positionaccording to the location of the pupil center. At the same time, using extending radialsmethod detects pupil figure point, removing false figure points generated by eyelids,eyelashes and reflection spots by passing window to figure points. Then selecting sixpoints randomly from different areas to fit ellipse and set double threshold value toobtain best fitting Ellipse. This thesis presents a fast method to determine blinking,using the best optimum linear approach to deal with blinking, which is simple and canmeet the real-time requirements. Analyzing the idea accuracy of head-mounted systemis 0.1°. The accuracy of testing pupil center by experiment is about 0.18°.Finally this thesis discusses the problems needed attention when porting eyetracking approach to CCS. Using code tuning, library functions extension, compilingand other methods to optimize the processing time from 8s to 80ms, which increases thespeed about 100 times .

Related Dissertations

  1. Development of the Platform for Compressor Optimization Design and Aerodynamic Optimization Design in the Transonic Compressor,TH45
  2. Investigation of Turbine S2 Stream Surface Direct Problem Aerodynamic Optimization Design,V235.11
  3. Reseach on Optimal Control of Elevator Group Based upon Ant Colony Algorithm,TU857
  4. Research on High Efficiency Interior Permanent Magnet Synchronous Motor,TM341
  5. Application of Interior-Point Theory for Reactive Power Optimization in Large Power Systems,TM714.3
  6. The Basic Research of Axial Flux Inductor Type High Temperature Superconducting Motor,TM37
  7. Research on the Optimization of Laser Triangulation Device,TH744.5
  8. The Optimization of AVS Video Decoder on the PC Platform and Improvement of Field Decoding,TN919.81
  9. Research on Stability of Hierarchical Sattellite Network,TN927.23
  10. Query Processing and Optimization in Massive Multi-Database Integration,TP311.13
  11. Research on Feature Extraction and Classification of Tongue Shape and Tooth-Marked Tongue in TCM Tongue Diagnosis,TP391.41
  12. Studies on Fermentation Optimization, Purification and Enzyme Characteristics of Lipase from Aspergillus Oryzae FS-1,TQ925.6
  13. Large the Hongshan iron ore mine personnel tracking positioning system optimization study,TN929.5
  14. Computing Minimum Distance between Curves/Surfaces Based on PSO Algorithm,O182
  15. Analysis of Nutritional Compositions and Quality of Shishen (Eremurus Chinensis Fedtsch.),S647
  16. Research on Standardization and Accuracy of Use on Junior High School Physical Education Teaching Methods,G633.96
  17. 1 - deoxynojirimycin synthetic route design and process optimization,TQ463.5
  18. Optimization of Fermentation Conditions, Purification, Cloning and Expression of a Cold-active Lipase from Pseudomonas Sp.RT-1,TQ925
  19. Breeding of Fungal α-amylase High-producing Strain by Genome Shuffling,TQ925
  20. Hot air drying characteristics of lettuce osmotic dehydration mass transfer kinetics and permeability,TS255.52
  21. Study on Application of Red Yeast Rice in Fermented Sausage,TS251.65

CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Information processing (information processing) > Pattern Recognition and devices > Image recognition device
© 2012 www.DissertationTopic.Net  Mobile