Olfactory Tactual

1. Ergonomics and
Value Engineering
Assignment 3

2. Olfactory and Tactual Display
Aditi Agrawal (01)
Yashashree rathi (20)
Faizan Ali Sayyed (33)
Lakshaman suthar (39)
Rishabh choudhari (64)
Project group- DRZ

3. • Information can be direct or indirect
• To convert stimuli from one modality to other, Auditory,
Tactual and Olfactory senses are used

4. Olfactory Display
“display” implicitly refers to a visual
display(information through visual stimuli)
an olfactory display provides olfactory stimuli
instead of visual stimuli

5. • Sense organ for smell = Olfactory epithelium, A patch of cells
loacted in each nostril
• A computer-controlled device that generates scented air with
the intended component and concentration of odor material
• Purpose:
– to make scented air from odor materials in a stocked form with
the desired components and concentration

6. • Hasn’t found widesprad application, becasuse
– People have different sensitivity towards different odors
– Stuffy nose can reduce sensitivity
– People adapt to an odor, so it can’t besensed after a while
– Dispersion of an odor is hard to control
– Some odors can make people sick
• The first example of using scent in conjunction with cinema
was found in 1906
• Users could enjoy multimodal movies incorporating breezes
and smells
• Only recently have smells been presented inter-actively in co-
operation with computers

7. • Olfactory display can serve very well as warning device
• It can be more effective and economical, than visual or
auditory displays
• Olfactory is a unique form of information display and many
attempts can made using this technique creatively in variety
of areas

8. Japanese “smell-o-vision” TV releases scents with per-pixel
accuracy

9. • In 2005, the scent generator “Aromatrix” was used at a
premium screening of the movie Charlie and the Chocolate
Factory
• The audiences were presented the aroma of chocolate,
synchronous to the scene of being in the chocolate factory

10. Toyota Motor Corporation, in the theater in their Amlux show-
room, provided an aroma system that enhanced the experience
of the audience

11. In 2011, Seems Inc. won the LG Nobel Chemical prize
(Improbable Research, 2011) with their alarm system to awaken
sleeping people in case of a fire or other emergency by using the
smell of wasabi (pungent horseradish)

12. Tactual Display
“display” implicitly refers to a visual
display(information through visual stimuli)
A tactual display provides mechanical vibrations or
electrical impulses

13. • Touch is used to process the information to show desired
thing on the screen
• This enables the user to distinguish between one control and
another by touch alone.
• Eliminates the need to look down or needing illumination
• The roughness or smoothness of the surface can also be used
to convey information about
(Eg. which side of the material to use for a particular process)

14. • Major 3 applications of Tactual display are:
1. Reception of coded messages
2. Perception of speech
3. Localization of sound
• Using mechanical and electrical energy by varying the
duration, location and intensity of vibrations
• Attempt are made to transmit speech to skin through
stimulation, but the results have been disappointing
• Using the sound intensity and amplifying it, then transmitting
it through vibrators thus generating a sense on the skin to
localize sounds

15. TACTUAL
DISPLAY
Coded
messages
Percption
of speech
Localization
of sounds
Substitute
for visual
display
Identification
of controls
Reading
prints
Navigation
aids
Tactual
graphs
Tracking-Task
displays

16. • Touch phones is a latest example of tactual display
• Gaming consoles provide vibratory senses create reality-
sensations and goose bumps

17. • Another example of this mode are rotary knobs or the tops of
levers
• They may have a distinctive shape or edge to them to make
them distinguishable from other such devices

18. A study by Courtney and Chow (2001)
concerns the extent to which blind people
can use their feet to discriminate shape
symbols on pavements
Areas adjacent to pedestrian
crossings are marked on the
pavement by raised bumps
A key source of information
for visually challenged in an
alternative form

19. Conclusion
• Olfactory and Tactual Display is not the most dominant
mode of information display( except for the visually
impaired)
• But their importance will grow in future

20. • Whenever the visual or auditory displays are overloaded,
these displays have a role to play
• They can also assist inreinforcing or directing attention to
visually presented information
– ( Eg. Mobile vibrations on silent mode)
• The use of Olfactory and Tactual display can enhance human
performance
• We don’t have to rely completely on visual displays to present
information, but they are definitely a big aid to blind people