This paper summarizes recent developments in audio and tactile feedback based assistive
technologies targeting the blind community. Current technology allows applications to be …

One-Sixth of the world population is suffering from vision impairment, as per WHO's report. In
the past decades, many efforts have been done in develo** several devices to provide …

This work systematically reviews the assistive technology solutions for pedestrians with
visual impairment and reveals that most of the existing solutions address a specific part of …

The JPEG baseline standard for image compression employs a block discrete cosine
transform (DCT) and uniform quantization. For a monochrome image, a single quantization …

Auditory overviews of routes can provide routing and map information to blind users
enabling them to preview route maps before embarking on a journey. This article …

This paper presents a new Electronic Travel Aid (ETA)'Acoustic Prototype'which is especially
suited to facilitate the navigation of visually impaired users. The device consists of a set of 3 …

Obstacle avoidance is a major challenge during independent mobility for blind or visually
impaired (BVI) people. Typically, BVI people can only perceive obstacles at a short distance …

To achieve optimal mobility, visually impaired people have to deal with obstacle detection
and avoidance challenges. Aside from the broadly adopted white cane, electronic aids have …

Electronic travel aids (ETAs) have been in focus since technology allowed designing
relatively small, light, and mobile devices for assisting the visually impaired. Since visually …

This paper proposes a novel concept to assist visually impaired individuals in recognizing
three-dimensional objects in everyday environments. This concept is realized as a portable …