Sunday, 16 November 2008

Human Computer Interaction

Human Computer Interaction- INTERACT ’01 (2001) Michitake Hirose

Representation of volumetric data using immersive projection and haptic display.

Visualisation is one of the most powerful methods for conveying information bout complex volumetric data. This field of technology has recently progressed rapidly, and methods such as stereoscopic imaging, large screens and other sensations such like haptics have been developed.

Below is a clip demonstrating one of the applications of “Stereoscopy”



As you can see this method has a wide rang of applications ranging from the medical fields, right the way through to media and entertainment.

An example of this concept being used in entertainment is the IMAX 3D Cinema where the concept has been taken utilised for the masses.



An immersive projection display consists of a plain or arced screen that surrounds the viewer and therefore provides wide-angle images. This device has the advantage of presenting a strong three-dimensional effect.

The advantage of this device is not simply that it presents objects realistically but imaginary or invisible objects can be presented for the users recognition. Such as air particles, molecules, etc. However tracking area of the hand Is physically limited by mechanical factors of the device.

“In this article we propose two methods of display to supplement each other. The application of the environment allows the user to immerse himself/herself in the scientific voxel based data. In addition haptics help a user to interact with the data directly”. (Michitake Hirose, 2001)

Voxel: (a combination of the words volumetric and pixel) is a volume element, representing a value on a regular grid in three dimensional space. This is analogous to a pixel, which represents 2D image data. Voxels are frequently used in the visualization and analysis of medical and scientific data.

Below is an examples of haptic communication and how it can be used in relation to mobile media.



Haptic communication: is the way that people and other animals communicate via touching. Touch is an extremely important sense for humans; as well as providing information about surfaces and textures it is a component of nonverbal communication in interpersonal relationships, and vital in conveying physical intimacy.

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