HANDOUTS (29 pages)

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HANDOUTS



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HANDOUTS

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Pages:
29
School:
Michigan State University
Course:
Cse 803 - Computer Vision
Computer Vision Documents

Unformatted text preview:

Segmentation Classification Tracking of Humans for Smart Airbag Applications Dr Michael E Farmer Dept of Computer Science Engineering Science and Physics University of Michigan Flint Importance of Topic Between 1986 and 2001 airbags caused the following deaths mostly during low speed crashes 19 infants in RFIS 85 children 7 adults due to proximity at time of deployment Unfortunately as recently as 1998 over 50 of a NHTSA survey respondents had placed their children in the front seat of their vehicle over the last 30 days Deaths may continue until a system to automatically disable the airbag is developed 1 Automotive Occupant Classification Tracking Problem National Highway Transportation Safety Administration NHTSA mandate 2004 Requires two suppression conditions Suppress the airbag if child or infant Detect change within 10 seconds Suppress the airbag if occupant is within Automatic Suppression Zone ASZ Disable bag within 20 msecs Definition of Automatic Suppression Zone ASZ Oriented along Instrument Panel Distance from Airbag where risk of injury in minimized ASZ ASZ 2 NHTSA Approved Methods for Performing Airbag Suppression 1 year old infant Protected by Classification Suppress if Present 3 to 6 year old child Adult Suppress if Present OR Protected by Tracking Suppress if in ASZ Suppress if in ASZ If decide to protect children by classification then get 4 class problem infant child adult empty If decide to protect children by tracking then get 2 class problem infant versus all else 4 class Classification Problem Infant Adult Child Empty 3 2 class Classification Problem Vs Adults Infants Difficulties with Occupant Classification Large Intra class Variability Infant Class Adult Class 4 Difficulties with Occupant Classification II Low Inter class Variability for 4 Class Classification Problem 6 Year old on Booster 5th Adult Female Note that the 6 YO is actually taller in these images when seat is in forward position for child and rear most position for the adult



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