Blind People’S Independence In Daily Activities
Brain Systems Mediating Voice Identity Processing in Blind Humans Study [8] showed that the group of participants who are congenitally blind are actually learning voices in a quicker manner compared with the group of controlled sighted participants. The congenitally blind participants showed great capabilities in recognizing voices. They depend more on vocal signals when they recognize a person’s character than located individuals. People who become blind from an accident have a negative effect on various domains of every day living exercises such as portability, interest in social occasions, and other spaces of quality of life.
Researchers in Visual Impairment, Coping Strategies and Impact on Daily Life [9] found that individuals who got to be blind are detached due to depending on others for persistent help or turn to supporting devices whereas performing their day by day activities. Their findings are supported by the results of An Information Tracking System for Real-time Guiding of Blind People, 2015 [10] and An Assistive Indoor Navigation System for the Visually Impaired in Multi-Floor Environments, 2017 [11]. These researches have illustrated that blind people try to avoid or minimize mobility either outdoor or indoor due to the risk of getting injured unintentionally. In common, visually impaired individuals depend on their hands and their cane to touch objects and to distinguish their environment. Moreover, the range of a cane is constrained to a little range around the lower portion of the dazzle person’s body. In this way, a blind individual may still be included in a collision since a cane is valuable as it were within the case of vicinity to impediments in this particular range. Thus, blind individuals regularly depend on located people for depictions of objects and help; subsequently, they confront noteworthy trouble in living freely.
Color Discrimination
One of the daily challenging problems for blind people is finding clothes with the suitable color and texture. A study by Yingli Tian and Shuai Yuan [12] worked to develop BRYTECH, a color identifier [13] by adding the feature of detecting the pattern of clothes. Although the results of their study have been fairly successful, it is still limited in the colors and fabric patterns detected. In an interesting similar case study on Assistive Technology for Visual Impairment Individuals: Adaptations in Household Appliances 2014 [14], the researchers choose a conventional domestic appliance (washing machine) and advanced this machine by utilizing voice messages to show the working status of the machine. Furthermore, the advanced machine is additionally able of consequently recognizing clothing colors to be washed and educate it through voice messages. Their results rate is 95% success in color recognition was experimentally confirmed in a real-life situation.
Based on Goldstein' study results [15], a manner of vocational tools with auditory and tactile readouts have been developed to facilitate specific job-related tasks. Through these means, totally blind individuals have been employed in a wide array of jobs and professions. And according to the director of the Bahia Handicap Association [10], visually impaired people join the job market and are improving their professional lives. However, in contrast to the previous studies, the results of Saudi Ophthalmology Conference 2013 [16] show that jobs for the blind in Saudi Arabia are still limited. They can work as teachers, central employees, or Imams.
In Shopping
In 2006, a group of researchers at Carnegie Mellon University (CMU) [17] created a solution for blind people while shopping by utilizing a Braille writer and labeled tape to attach custom labels onto items in the grocery, which enables blind customers to find and recognize different items quickly and accurately, without asking for assistance from others. Nagarathna and Sowjanya worked on 2015 in developing previous study and serving the blind on a wider scale [18]. After that, they proposed a device includes a camera that acts as a vision in detecting the label image of the product then the image is processed internally. Once the device identify the label name, it convert it to text which will be a voice output to blind users. (Figure 2. 2) Also in the same year, a study for Smart Shopping Facilitator For Blind [19] used the RFID technology. RFID is the best and most effective innovation for question location and distinguishing proof during shopping. RFID technology contains RFID Reader and RFID Labels. RFID Labels will be mounted on the racks within the shops which are driven by the RFID Reader while making contact.
