In addition to constructing and analyzing user space in 3D
maps, the DesignAR system provides an application and
interface for the intuitive design of interiors.
A. DesignAR application
With the DesignAR system, various virtual furniture or
interior products - wall-mounted TVs, picture frames, etc. -
that require construction or drilling holes in real situations can
be easily applied to real space. Thus, the current DesignAR
application focuses on the interior design of walls.
http://www.aleeshainstitute.com/interior-designing-course.php
1) Wall interior design: Replacing wallpapers or installing
tiles in real life requires a lot of time and labor, and after the
completion of such, modifications are even more difficult. For
those reasons, the user can virtually apply wallpapers and
patterns onto the actual space to see the results before the
actual construction.
2) Virtual installation of products: Drilling holes is
necessary in the cases of wall-mounted interior items, such as
electronic household products and picture frames, and one
must go through the steps of selecting the location and the
levelling process before the actual installation; however, for
the layman, those jobs are not so easy. To solve such
difficulties, after selecting the desired interior products and
household electronic products, virtual positioning of those
items is possible.
3) Drawing interior: It is possible for the users to paint
and draw directly on the walls to express their individuality;
however, in real life, it is not easy to undo their mistakes. The
space can be designed while corrections are freely made.
B. DesignAR interface
By providing the user with a 3D map especially constructed
for interior design, the system provides the user with full or
detailed information about the space. It also enables the user to
control the angle of the pan-tilt. Users can select the
application and apply interior related items via the interface.
A
spatial user interface that could use the DesignAR interface, as
mentioned above, in a projected space has been designed. As
shown in Fig. 4, users can intuitively design the interior by
directly touching the spatial user interface [20], and the visual
results of the users' designs are shown in real-time via the
projector. In a projection space where there is no separate
touch sensor, the touch interaction that uses depth data is
implemented in order to control the spatial user interface via
touch. To detect contacts between the user and the projection
space, the equation by Wilson [21] is applied. When the user
touches the surface of the projection space, the user's depthpixel appears closer to the camera than the pixel on the surface
of the projection space.
dsurface > dmax > dx,y > dmin (1)
The dsurface in (1) at this time is the surface depth of the
projection space and, by setting the threshold of dmax,
eliminates the elements that can be regarded as things touching
the surface of the projection space. Pixels outside the range of
dmin are considered things that are not touching the surface of
the projection space, and the system does not consider
elements other than the user's touches. By setting the threshold,
only the depth pixels that touch the projection space can be
detected [21]; however, in the case of the spatial user interface,
the user must physically move to the projected space when
there are certain distances between the projected space and the
user. In addition, it is not easy for the user to physically touch
the projection space in the case of a ceiling or a high wall. As
shown in Fig. 5-(a) and (c), the same interior design as the
spatial user interface can be performed using the mobile device.
Fig. 5-(b) shows the use of DesignAR in such an out-of-reach
situation.
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