Augmented Vision Videos
Electronic aids for the visually impaired using head mounted display devices were proposed by many and a few attempts at implementation have even made it to the market. Existing products provided mostly magnification and standard video contrast control. These products had only limited success and are usually not recommended for use in mobility. Other prototype devices provided image enhancement and light amplification for night vision.

The limited success of these approaches has been attributed to the limited field of view of most devices and to difficulties adapting to high magnification vision for constant use in mobility (visual vestibular conflict). I propose a novel concept of augmented vision, which is based on a new method of enhancement and the use of open peripheral-view, see-through display devices. This concept could be used for both enhancement for central scotoma and field expansion for peripheral loss.

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Augmented Vision Illustrating
Head Movement
Augmented Vision Illustrating
Eye and Head Movement
AVI [8.70 MB]
QuickTime [12 MB]
AVI [7.20 MB]

QuickTime [2.60 MB]

This video simulation illustrates augmented vision using an HMD when the display size is equal to or smaller than the residual visual field of the user/patient.

This video provides a simulated view of augmented vision with head movements only and the eye in a fixed position. Again, this illustrates the type of movement that would be characteristic of a person whose visual field matches the field of the display, or is larger.

The yellow lines represent the edge detection lines which provide the augmentation, and the real-world view represents the restricted view a person would have while using this device.

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For more information visit the Bioengineering Research Partnership project page, or refer to the readings below:

Peli, E. (2001). Vision multiplexing - an engineering approach to vision rehabilitation device development. Optometry and Vision Science, 78: 304-315. [PDF 938 KB]

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