WO2001096147A3 - Occupant sensor - Google Patents

Occupant sensor Download PDF

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Publication number
WO2001096147A3
WO2001096147A3 PCT/US2001/019206 US0119206W WO0196147A3 WO 2001096147 A3 WO2001096147 A3 WO 2001096147A3 US 0119206 W US0119206 W US 0119206W WO 0196147 A3 WO0196147 A3 WO 0196147A3
Authority
WO
WIPO (PCT)
Prior art keywords
image
occupant
features
classified
size
Prior art date
Application number
PCT/US2001/019206
Other languages
French (fr)
Other versions
WO2001096147A2 (en
WO2001096147A9 (en
Inventor
Naveed Mahbub
Original Assignee
Automotive Systems Lab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Automotive Systems Lab filed Critical Automotive Systems Lab
Priority to EP01942206A priority Critical patent/EP1297486A4/en
Priority to JP2002510303A priority patent/JP4810052B2/en
Publication of WO2001096147A2 publication Critical patent/WO2001096147A2/en
Publication of WO2001096147A3 publication Critical patent/WO2001096147A3/en
Publication of WO2001096147A9 publication Critical patent/WO2001096147A9/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
    • B60R21/01512—Passenger detection systems
    • B60R21/0153—Passenger detection systems using field detection presence sensors
    • B60R21/01538—Passenger detection systems using field detection presence sensors for image processing, e.g. cameras or sensor arrays
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
    • G01S17/04—Systems determining the presence of a target
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/88—Lidar systems specially adapted for specific applications
    • G01S17/89—Lidar systems specially adapted for specific applications for mapping or imaging
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/4802—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/70—Determining position or orientation of objects or cameras
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/103—Static body considered as a whole, e.g. static pedestrian or occupant recognition

Abstract

An occupant sensor (10) incorporates a 3-D imaging system that acquires a 3-D image of an object (32). The image is segmented to remove unwanted portions and to identify a region-of-interest, and the content thereof is classified responsive to a plurality of 3-D features. In one embodiment, the 3-D image is transformed to a second 3-D image from a second viewing perspective. A - dimensional projection of the second 3-D image is classified, and a presence, size and position of occupant can be identified from features thereof. A safety restraint system is controlled responsive to the detected scenario, including the presence, position and size of an occupant.
PCT/US2001/019206 2000-06-15 2001-06-15 Occupant sensor WO2001096147A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP01942206A EP1297486A4 (en) 2000-06-15 2001-06-15 Occupant sensor
JP2002510303A JP4810052B2 (en) 2000-06-15 2001-06-15 Occupant sensor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US21184600P 2000-06-15 2000-06-15
US60/211,846 2000-06-15

Publications (3)

Publication Number Publication Date
WO2001096147A2 WO2001096147A2 (en) 2001-12-20
WO2001096147A3 true WO2001096147A3 (en) 2002-04-18
WO2001096147A9 WO2001096147A9 (en) 2002-10-10

Family

ID=22788557

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/019206 WO2001096147A2 (en) 2000-06-15 2001-06-15 Occupant sensor

Country Status (4)

Country Link
US (1) US6961443B2 (en)
EP (1) EP1297486A4 (en)
JP (1) JP4810052B2 (en)
WO (1) WO2001096147A2 (en)

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Also Published As

Publication number Publication date
EP1297486A2 (en) 2003-04-02
US20020050924A1 (en) 2002-05-02
WO2001096147A2 (en) 2001-12-20
JP2004503759A (en) 2004-02-05
WO2001096147A9 (en) 2002-10-10
JP4810052B2 (en) 2011-11-09
US6961443B2 (en) 2005-11-01
EP1297486A4 (en) 2006-09-27

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