Perception of Objects
in Technical Illustrations:
A Challenge in
Technical Communication
s1170002 Yu Arai
CLR Technical Communication Laboratory
Supervised by Prof. Debopriyo Roy
2/14/2013
1
Overview
1.  Introduction
2.  Work Flow
3.  Method
Ø  Making Figures
Ø  Data collecting from Test sheets
Ø  Data analysis
4.  Findings
5.  Discussion
6.  Conclusion
2
Introduction
§ Mental image is . . .
like a picture in own brain.
§ Mental rotation is . . .
Basically about how the brain moves objects in the physical space in a
manner that helps with positional understanding of objects in space.
§ Technical illustration is . . .
The use of illustration to visually communicate information of a technical
nature.
3
Work Flow Make Figures
↓
Top view version figures
↓
Make Test seats
↓
Take test
↓
Data collect
↓
Analysis
↓
SPSS
↓
Discussions
↓
Conclusions
4
Method – Making Figures (POSER)
Heights
a.  Chest height
b.  Waist height
Activities
a.  Holding a Ball
b.  Throwing a Ball
Camera Positions
1.  Front – 0degree
2.  1/3rd Side – 30 degrees
3.  Side – 90 degrees
4.  1/3rd Back – 120 degrees
5.  Back – 180 degrees
5
B : Top of view
A : Basic View
Method – Data collecting
ü 41 students who are non-native English speaker participated in this study.
ü Having 20 test sheets.
6
Method – Data analysis (SPSS)
§ Given a score of either 1 or 0.
§ The data was entered in SPSS statistical software
for data analysis
§ A score in the range of 1-5 was reported for each
test sheet.
7
Finding – Cochran Test
•  Correct Answer : 1
•  Incorrect Answer : 0
•  Q = 17.968 Asymp.sig. = .525
•  P > .05
8
Chest height – Confidence data
3.80
3.68
3.80 3.80
3.73
3.53
3.63
3.70
3.85
3.73
3.30
3.40
3.50
3.60
3.70
3.80
3.90
Front 1/3 side Side 1/3 back Back
Holding
Throwing
9
Waist height – Confidence data
3.93 3.93
3.80
3.90
3.73
3.95
3.78 3.78
3.80
3.83
3.60
3.65
3.70
3.75
3.80
3.85
3.90
3.95
4.00
Front 1/3 side Side 1/3 back Back
Holding
Throwing
10
Finding – Friedman test
•  20 body positions/ height/ action
ü  Chi-square = 25.172
ü  Asymp.sig. = .115 > .05
11
Finding – Confidence level
Correlations Between Personal Value Sig. Value
Throwing Chest Back .514** .001
Throwing Waist Side .474** .002
Holding Waist Back .439** .005
Holding Waist Front .429** .006
Throwing Waist 1/3rd Back .406** .009
12
Significant Correlations between Mean Accuracy Scores and Confidence Scores
Significant Correlations between Mean Accuracy Scores and Confidence ScoresSignificant Correlations between Mean Accuracy Scores and Confidence Scores
Discussion
Ø Body height/rotation/action
§  When compared with a plan view, it becomes
more various visual cues.
•  Accuracy score around the 85 – 95% level
Ø Similarity body height – action - rotation
§  20 body position – insignificant difference
§  Height/Action combinations – insignificant
difference
13
Conclusion and Future research
§ Explored the effect of Body rotation, height and
action
ü Increased the accuracy levels
ü  reader’s interesting approach
§ In the future research…
o The level of correctness should be analyzed carrying out
time observation.
14
Thank you
15

Arai presentation

  • 1.
    Perception of Objects inTechnical Illustrations: A Challenge in Technical Communication s1170002 Yu Arai CLR Technical Communication Laboratory Supervised by Prof. Debopriyo Roy 2/14/2013 1
  • 2.
    Overview 1.  Introduction 2.  WorkFlow 3.  Method Ø  Making Figures Ø  Data collecting from Test sheets Ø  Data analysis 4.  Findings 5.  Discussion 6.  Conclusion 2
  • 3.
    Introduction § Mental image is. . . like a picture in own brain. § Mental rotation is . . . Basically about how the brain moves objects in the physical space in a manner that helps with positional understanding of objects in space. § Technical illustration is . . . The use of illustration to visually communicate information of a technical nature. 3
  • 4.
    Work Flow MakeFigures ↓ Top view version figures ↓ Make Test seats ↓ Take test ↓ Data collect ↓ Analysis ↓ SPSS ↓ Discussions ↓ Conclusions 4
  • 5.
    Method – MakingFigures (POSER) Heights a.  Chest height b.  Waist height Activities a.  Holding a Ball b.  Throwing a Ball Camera Positions 1.  Front – 0degree 2.  1/3rd Side – 30 degrees 3.  Side – 90 degrees 4.  1/3rd Back – 120 degrees 5.  Back – 180 degrees 5 B : Top of view A : Basic View
  • 6.
    Method – Datacollecting ü 41 students who are non-native English speaker participated in this study. ü Having 20 test sheets. 6
  • 7.
    Method – Dataanalysis (SPSS) § Given a score of either 1 or 0. § The data was entered in SPSS statistical software for data analysis § A score in the range of 1-5 was reported for each test sheet. 7
  • 8.
    Finding – CochranTest •  Correct Answer : 1 •  Incorrect Answer : 0 •  Q = 17.968 Asymp.sig. = .525 •  P > .05 8
  • 9.
    Chest height –Confidence data 3.80 3.68 3.80 3.80 3.73 3.53 3.63 3.70 3.85 3.73 3.30 3.40 3.50 3.60 3.70 3.80 3.90 Front 1/3 side Side 1/3 back Back Holding Throwing 9
  • 10.
    Waist height –Confidence data 3.93 3.93 3.80 3.90 3.73 3.95 3.78 3.78 3.80 3.83 3.60 3.65 3.70 3.75 3.80 3.85 3.90 3.95 4.00 Front 1/3 side Side 1/3 back Back Holding Throwing 10
  • 11.
    Finding – Friedmantest •  20 body positions/ height/ action ü  Chi-square = 25.172 ü  Asymp.sig. = .115 > .05 11
  • 12.
    Finding – Confidencelevel Correlations Between Personal Value Sig. Value Throwing Chest Back .514** .001 Throwing Waist Side .474** .002 Holding Waist Back .439** .005 Holding Waist Front .429** .006 Throwing Waist 1/3rd Back .406** .009 12 Significant Correlations between Mean Accuracy Scores and Confidence Scores Significant Correlations between Mean Accuracy Scores and Confidence ScoresSignificant Correlations between Mean Accuracy Scores and Confidence Scores
  • 13.
    Discussion Ø Body height/rotation/action §  Whencompared with a plan view, it becomes more various visual cues. •  Accuracy score around the 85 – 95% level Ø Similarity body height – action - rotation §  20 body position – insignificant difference §  Height/Action combinations – insignificant difference 13
  • 14.
    Conclusion and Futureresearch § Explored the effect of Body rotation, height and action ü Increased the accuracy levels ü  reader’s interesting approach § In the future research… o The level of correctness should be analyzed carrying out time observation. 14
  • 15.