Enhanced Artificial Vision for Visually Impaired Using Visual Implants

Computer Vision-based Object Recognition for the Visually Impaired Using Visual Tags

Recognizing generic objects in the surrounding environment is a major challenge for the visually impaired for which few assistive technological solutions have been devised to date. Nevertheless, in recent years, several computer vision-based strategies have emerged for this task which utilize visual tags affixed to objects for identification. These approaches are distinguished by their reliance...

Biologically plausible Integrative mOdels of the Visual system : towards synergIstic Solutions for visually-Impaired people and artificial visiON

National Eye Institute Visual Function Questionnaire or Indian Vision Function Questionnaire for visually impaired: a conundrum.

PURPOSE Both the long form visual functioning scale (LFVFS(39)) and visual functioning scale (VFS) are measures of visual functioning (VF) that represent the Rasch-scaled versions of the NEI-VFQ(39) and the Indian vision function questionnaire (IND-VFQ), respectively. The objectives of this study were to investigate if the 15-item LFVFS(39) and 13-item VFS of the IND-VFQ meet the assumptions of...

Wearable Real-Time Stereo Vision for the Visually Impaired

Visually impaired find their navigation difficult as they often lack the needed information for bypassing obstacles and hazards. Electronic Travel Aids (ETAs) are devices that use sensor technology to assist and improve the blind user’s mobility in terms of safety and speed. Modern ETAs does not provide distance information directly and clearly. This paper proposes a method for determining dist...

A stereo vision-based aid for the visually impaired

This paper describes a portable vision-based obstacle detection system, intended for use by blind people. The system combines an obstacle detection system designed for AGVs with recalibration of ground position and a Kalman Filter based model of the person’s walking movement. The system uses stereo vision. Obstacle detection is achieved through comparison of the disparity seen with that expecte...