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Candidate HUD Configurations to be studied in Year 2 NCSU.

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Presentation on theme: "Candidate HUD Configurations to be studied in Year 2 NCSU."— Presentation transcript:

1 Candidate HUD Configurations to be studied in Year 2 NCSU

2 Objectives To select candidate HUD configurations to be used in 2 nd year study. Choose among 32 configurations used in 1 st year study. The selected image should represent High/Medium/Low perceived clutter conditions. Three configurations per each clutter condition.

3 Summary of Clutter Ratings Predicted clutter ratings were calculated using the regression equation from the 1 st year study. The correlation between measured and predicted ratings is r= (p<0.0001).

4 Selection of Displays from Rankings Common displays: N, M, O, O*, K. Selection Steps and Criteria 1.Define three groups representing high/medium/low clutter ratings - lower 22%, middle 25% and upper 22% (7~8 images) in each. 2.Look for common displays across measured and predicted rankings in each category. 3.Select diverse set of displays among those found in both measured and predicted lists within groups. Common displays: C*, H, F, E* Common displays: B, I*, A*, D, P

5 Selection of Features in High Clutter Among the five common display images… –“O” was selected because represents an “EVS-only” condition. –“O*” was selected because it represents a full-featured HUD. “K” is same as O* except with TCAS. (TCAS will not be considered in this experiment because of limited integration by actual manufacturers.) –“N” overlapped “O*” in features, except for SVS –“M” was included because it presents both SVS and EVS features. Final Selection: M, O*, O. ImageNMO*KO SVS01110 EVS11111 TUN11110 PRIM10110

6 Configurations of High Clutter Ratings Image OImage M Image O* SVS: Off EVS: On TCAS: Off TUN: Off PRIM: Off SVS: On EVS: On TCAS: Off TUN: On PRIM: Off SVS: On EVS: On TCAS: Off TUN: On PRIM: On

7 Selection of Features in Medium Clutter Among the four common display images… –“C* was selected because it doesn’t include SVS while others do. –“H” was selected because it presents the EVS feature. –“E*” was selected because it does not present PRIMARY mode symbology while all others do. Final Selection: C*, H, E*. ImageC*HFE* SVS0111 EVS0100 TUN1001 PRIM1110

8 Configurations of Medium Clutter Ratings Image HImage E* Image C* SVS: On EVS: On TCAS: Off TUN: Off PRIM: On SVS: On EVS: Off TCAS: Off TUN: On PRIM: Off SVS: Off EVS: Off TCAS: Off TUN: On PRIM: On

9 Selection of Features in Low Clutter Among the five common display images… –“D” was selected to because it represents an “SVS-only” condition. –“I*” was selected because it has no SVS, EVS, TUN, or PRIM feature. (B is the same as I* except for TCAS. TCAS will not be considered in this experiment because of limited integration by actual manufacturers.) –“P” was selected because it includes PRIMARY symbology. Presentation of PRIMARY symbology had a much stronger effect on clutter ratings in the 1st study than the presence of TUN (A*). Final Selection: I*, D, P ImageBI*A*DP SVS00010 EVS00000 TUN00100 PRIM00001

10 Configurations of Low Clutter Ratings Image P Image I* Image D SVS: Off EVS: Off TCAS: Off TUN: Off PRIM: On SVS: Off EVS: Off TCAS: Off TUN: Off PRIM: Off SVS: On EVS: Off TCAS: Off TUN: Off PRIM: Off (Use D in order to have a condition with SVS, which is not included in B or I*.) (Use P in order to have a condition with PRIMARY symbology.)


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