A Survey On Camera Based Assistive Technologies For Impaired Peoples

Many people take their eyesight and hearing for granted because they are so accustomed it; however, others live without their eyesight and/or hearing. Today, over 5% of the world’s population, about 360 million people, suffer from hearing loss (“Deafness and Hearing Loss”). Likewise, about 7 million people go blind every year (“EyeCare America”). There are about 45,000-50,000 people in the United States who are blind and deaf (“Center for Parent Information and Resources”). Helen Keller is one example of someone who was both blind and deaf.

As vital organ of vision, the eye, allows us to learn more about the world around us more than any other organ or senses. Sight, the physical sensory experience and vision, the metaphysical concept of how our brain interprets images both work harmoniously and play a huge role in our everyday lives. However, almost a billion people are either blind or visually impaired simply due to not having a pair of glasses. Being able to lead people in the direction of good vision is what developed my interests.

The first way that a community could go blind is the limiting of information. In North Korea, this problem is seen in multiple situations such as technology, medicine, and contact with the outside world. This could easily lead to blindness, as a community with little to no knowledge of information will not understand most things. North Koreans are limited only to books written by their ruler, and phones, or any form of communication for that matter, are forbidden. In the North Korean Documentary, it was seen that most outsiders are not allowed in, if they have been

Low vision is the loss of eye sight. Even with regular glasses, contact lenses, or surgery it might be challenging to perform every day tasks. There are many different diseases and conditions associated with visual impairments.

In the United States of America on its own has had 140,893 cases reported in May, June, July, and August in the year 2014. Twelve percent of the 140,893 cases had surgery to remove an eye. Forty percent of the surgery amount they ended up going blind or losing their sight. This

Imagine a world in which the only way to see was to reach your fingers out and feel. There would be no color to amaze you, no faces to distinguish between, and no facial expressions or body language to clue you in. Blindness is a serious thing that isn’t thought about very often. Glaucoma is a genetic disease that can cause blindness. It affects both old and young people worldwide. While it doesn’t decrease life expectancy, it is a disease that makes it hard or impossible to see that bright, colorful world.

There is lots of treatment for blindness in general that has saved people. The treatment for blindness is close to the same treatment for cancer one way that can fix blindness is killing the red blood cells in the eye (79). Other ways would be using angiogenesis inhibitors which are drugs that which grows new blood cells in the eye to help circulate blood through the eye (79). These are some of many different types of treatment they use Radiation therapy, electronic implants, Stem cell therapy, cell transplants, and retinal tissue transplants (79). There are many professionals in the study of blindness that help find cures and help. These are just some of the many doctors ophthalmologists, optometrists, and opticians (66).

They have gathered information from several databases of patients diagnosed with glaucoma and have evidence of visual field loss consistent with Primary Open-Angle Glaucoma or evidence blindness caused by Glaucoma to help put together some answers on how much people with this diagnosis are affected. They show some important facts about the diagnosis of how many people that are diagnosed with Glaucoma lose vision quickly if not care or treated by an

Giving the blind sight has been a dream for scientists. Just think about it, the blind being able to see again or for the first time in their lives. But where is this miraculous solution? Is the solution in replacing dead photoreceptors?

The disability group that I would like to focus on for my Accommodations Project is blindness and low vision. According to the textbook, “the statutory definition of blindness is based on visual acuity and field of vision. Visual acuity is the ability to clearly distinguish forms or discriminate details at a specified distance” (Heward 345). For example, Mary is able to see the words on the projection screen from her desk and she can see it clearly. Having 20/20 vision does not mean that a person has perfect vision it simply means that they can see at a distance of 20 feet. The American Foundation for the Blind defines being legally blind as having vision “no better than 20/200 corrected vision in the better eye, or a visual field not extending beyond 20 degrees in the better eye, or a visual efficiency of no more than 20 percent. The “legal” refers to a

Blind people are usually associated with disability. In this world having a disability means having limited opportunities, in jobs, in lovelife, and many other tasks that people who are normal tend to enjoy to the fullest.

According the World Health Organization, approximately 285 million people across the world are suffering an impaired vision. They cannot read or write in normal letters; they use Braille to communicate. Braille is a writing system that employs tactile sensation instead of its visual counterpart. I have been learning Braille for a year and am able to read and write in English Braille. This system of writing is my passion.

“Vision is the most dominant sense for sighted individuals, followed by hearing and touch” (Sharp, Rogers & Preece, 2015). Thus, the pictures and text are legible and attractive to show DIY. They are good to the perception of cognitive aspects.

Although hand geometry cannot provide competitive matching performance as some other biometric features, it is still a good choice for personal identification due to its simplicity, low-cost and high user acceptance properties. It is a process in which the system sensor extracts a unique geometric feature of the hand such as length of the fingers, width of hands, finger thickness, distance between finger joints and hand’s overall bone structure [19]. Image acquisition system is composed of commercial webcam, InfraRed (IR) filter, and some sets of doubles- rows GaAs infrared emitting diode. Users can place their hands freely in front of the camera. Some processing steps are applied to solve the problems arising in the feature extraction

Abstract— Blindness is one of the most feared afflictions in the world. It is difficult to travel to a desired destination for blind people. This system eases this process by providing two core facilities – a short range obstacle detection system and a source-to-destination shortest path guidance system. The features of this device are real time Obstacle Detection, Distress Calling, global position monitoring, Voice Command functionality & Shortest Route Guidance. The System hopes to provide blind people to simply press a button from mobile, speak the desired destination & be guided there by the system’s audio instructions. The goal is to develop a system that will provide guidance for visually impaired individuals to reach desired destination.