Research

 

Intelligent Vehicle Experimental Test-beds

 

Human-Centered Driver Assistance Systems

 

Vision Systems for Occupant Posture Analysis

 

Vision Systems for Driver Analysis and Interface

 

Related Research

 

Comparative Performance

Stereo and LWIR head detection/tracking performance

Comparative performance analysis on the head tracking algorithms using stereo and LWIR scene data was done using the LISA-P. A series of experiments were conducted where data was captured for both the stereo and LWIR methods simultaneously.

The tests were conducted on three non-consecutive mornings from 8-11 a.m. Test subjects were asked to enter the vehicle and perform a series of movements and tasks while the car was driven at road speeds. In all, 10,045 frames were collected with three subjects.

Stereo and LWIR Head Detection and Tracking Comparison

Occupant Task

 Male 1, 58

Female 1, 58

Female 2, 511

All Occupants

Stereo

LWIR

Stereo

LWIR

Stereo

LWIR

Stereo

LWIR

Sit Normal

100.0%

100.0%

100.0%

100.0%

100.0%

100.0%

100.0%

100.0%

Lean Halfway

100.0%

73.0%

100.0%

92.9%

X

X

100.0%

82.8%

Lean Forward

76.4%

0.9%

X

X

X

X

76.4%

0.9%

Return to Normal 1

100.0%

95.9%

98.0%

98.0%

100.0%

100.0%

99.6%

97.4%

Lean Back

100.0%

100.0%

100.0%

100.0%

100.0%

100.0%

100.0%

100.0%

Return to Normal 2

100.0%

100.0%

100.0%

100.0%

100.0%

100.0%

100.0%

100.0%

Lean Right

100.0%

52.1%

100.0%

100.0%

97.8%

96.7%

99.1%

92.1%

Lean Left

100.0%

98.9%

X

X

97.7%

100.0%

98.4%

99.7%

Return to Normal 3

100.0%

100.0%

100.0%

100.0%

100.0%

100.0%

100.0%

100.0%

Position Test Totals

(Number of Frames)

97.3%

(940)

80.3%

(776)

99.8%

(537)

98.7%

(531)

98.7%

(676)

99.1%

(679)

98.4%

(2153)

91.7%

(1986)

Move Hands about cabin

78.1%

100.0%

100.0%

97.4%

97.8%

99.1%

91.6%

99.2%

Open the glove box

100.0%

100.0%

100.0%

95.5%

74.3%

97.6%

91.2%

97.8%

Put hands on face & stretch

81.7%

100.0%

100.0%

85.2%

87.8%

89.4%

90.0%

91.3%

Adjust car radio

100.0%

100.0%

100.0%

100.0%

99.4%

100.0%

99.8%

100.0%

Place hat in lap

100.0%

100.0%

100.0%

97.5%

100.0%

97.7%

100.0%

97.9%

Put hat on head

90.0%

84.3%

90.5%

35.7%

100.0%

93.3%

95.2%

85.2%

Move with hat

98.8%

87.9%

100.0%

68.3%

92.6%

62.8%

96.5%

71.0%

Remove Hat

100.0%

100.0%

100.0%

62.1%

100.0%

100.0%

100.0%

94.9%

Feet on Dashboard

100.0%

94.5%

100.0%

76.4%

93.9%

100.0%

98.3%

87.3%

Hand Motion & Object Test Totals

(Number of Frames)

92.6%

(1399)

97.4%

(1471)

99.8%

(1939)

85.7%

(1665)

92.0%

(2258)

90.5%

(2221)

94.8%

(5596)

90.9%

(5357)

Free Motion Test

(Number of Frames)

100.0%

(493)

87.4%

(431)

99.8%

(470)

95.5%

(450)

95.8%

(942)

86.1%

(846)

97.9%

(1905)

88.9%

(1727)

All Test Totals

(Number of Frames)

95.4%

(2832)

90.2%

(2678)

99.8%

(2946)

89.6%

(2646)

94.0%

(3876)

90.9%

(3746)

96.2%

(9654)

90.3%

(9070)

X denotes that the subject moved out of the camera frame for this test, and the results were invalid.