scholarly journals Saliency Cuts: Salient Region Extraction based on Local Adaptive Thresholding for Image Information Recognition of the Visually Impaired

2020 ◽  
Vol 17 (5) ◽  
pp. 713-720
Author(s):  
Mukhriddin Mukhiddinov ◽  
Rag-Gyo Jeong ◽  
Jinsoo Cho
Keyword(s):  
Visually Impaired ◽  
Saliency Map ◽  
Input Image ◽  
Adaptive Thresholding ◽  
Binary Mask ◽  
Salient Object ◽  
Full Resolution ◽  
Visually Impaired People ◽  
Region Extraction ◽  
Edge Detection Method

In recent years, there has been an increased scope for assistive software and technologies, which help the visually impaired to perceive and recognize natural scene images. In this article, we propose a novel saliency cuts approach using local adaptive thresholding to obtain four regions from a given saliency map. The saliency cuts approach is an effective tool for salient object detection. First, we produce four regions for image segmentation using a saliency map as an input image and applying an automatic threshold operation. Second, the four regions are used to initialize an iterative version of the Grab Cut algorithm and to produce a robust and high-quality binary mask with a full resolution. Lastly, based on the binary mask and extracted salient object, outer boundaries and internal edges are detected by Canny edge detection method. Extensive experiments demonstrate that the proposed method correctly detects and extracts the main contents of the image sequences for delivering visually salient information to the visually impaired people compared to the results of existing salient object segmentation algorithms

scholarly journals Automatic Salient Object Extraction Based on Locally Adaptive Thresholding to Generate Tactile Graphics

2020 ◽  
Vol 10 (10) ◽  
pp. 3350 ◽  
Author(s):  
Akmalbek Abdusalomov ◽  
Mukhriddin Mukhiddinov ◽  
Oybek Djuraev ◽  
Utkir Khamdamov ◽  
Taeg Keun Whangbo
Keyword(s):  
Image Segmentation ◽  
Visual Information ◽  
Visually Impaired ◽  
Saliency Map ◽  
Input Image ◽  
Adaptive Thresholding ◽  
Binary Mask ◽  
Salient Object ◽  
Full Resolution ◽  
Salient Regions

Automatic extraction of salient regions is beneficial for various computer vision applications, such as image segmentation and object recognition. The salient visual information across images is very useful and plays a significant role for the visually impaired in identifying tactile information. In this paper, we introduce a novel saliency cuts method using local adaptive thresholding to obtain four regions from a given saliency map. First, we produced four regions for image segmentation using a saliency map as an input image and local adaptive thresholding. Second, the four regions were used to initialize an iterative version of the GrabCuts algorithm and to produce a robust and high-quality binary mask with a full resolution. Finally, salient objects’ outer boundaries and inner edges were detected using the solution from our previous research. Experimental results showed that local adaptive thresholding using integral images can produce a more robust binary mask compared to the results from previous works that make use of global thresholding techniques for salient object segmentation. The proposed method can extract salient objects with a low-quality saliency map, achieving a promising performance compared to existing methods. The proposed method has advantages in extracting salient objects and generating simple, important edges from natural scene images efficiently for delivering visually salient information to the visually impaired.

Application of IoT Based Stick for Visually Impaired People in CVIS System

CICTP 2020 ◽  
2020 ◽  
Author(s):  
Ammar Muhammad ◽  
Qizhou Hu ◽  
Muhammad Tayyab ◽  
Yikai Wu ◽  
Muhammad Ahtsham
Keyword(s):  
Visually Impaired ◽  
Visually Impaired People ◽  
Impaired People

Widening the horizons: Information space of the library for the blind as the resource to improve quality of life of visually impaired people

2020 ◽  
Author(s):  
Olga Novikova ◽  
Keyword(s):  
Quality Of Life ◽  
Continuing Education ◽  
Visually Impaired ◽  
Information Space ◽  
Advanced Training ◽  
Improve Quality ◽  
Visually Impaired People ◽  
Impaired People ◽  
Special Library

The special library acts as the cultural and educational center for visually impaired people, and as the center for continuing education. The multifunctional performance of the library is substantiated. The joint projects accomplished in cooperation with theatres and museums and aimed at integrating the visually impaired people into the society are described. Advanced training projects for the library professionals accomplished in 2018 are discussed.

Touching Blind Bodies: A Critical Inquiry into Pedagogical and Cultural Constructions of Visual Disability in the Nineteenth Century

2018 ◽  
Author(s):  
Heather Tilley ◽  
Jan Eric Olsén
Keyword(s):  
Nineteenth Century ◽  
Visually Impaired ◽  
Blind People ◽  
Embodied Experience ◽  
Visual Disability ◽  
Visually Impaired People ◽  
Educational Challenges ◽  
Impaired People ◽  
The Senses ◽  
Cultural Constructions

Changing ideas on the nature of and relationship between the senses in nineteenth-century Europe constructed blindness as a disability in often complex ways. The loss or absence of sight was disabling in this period, given vision’s celebrated status, and visually impaired people faced particular social and educational challenges as well as cultural stereotyping as poor, pitiable and intellectually impaired. However, the experience of blind people also came to challenge received ideas that the visual was the privileged mode of accessing information about the world, and contributed to an increasingly complex understanding of the tactile sense. In this chapter, we consider how changing theories of the senses helped shape competing narratives of identity for visually impaired people in the nineteenth century, opening up new possibilities for the embodied experience of blind people by impressing their sensory ability, rather than lack thereof. We focus on a theme that held particular social and cultural interest in nineteenth-century accounts of blindness: travel and geography.

Low cost audio based intelligent guidance system for visually impaired people

2020 ◽  
Vol 24 (03) ◽  
pp. 515-520
Author(s):  
Vattumilli Komal Venugopal ◽  
Alampally Naveen ◽  
Rajkumar R ◽  
Govinda K ◽  
Jolly Masih
Keyword(s):  
Visually Impaired ◽  
Low Cost ◽  
Guidance System ◽  
Visually Impaired People ◽  
Impaired People

MAGIC-I as Assistance for the Visually Impaired People

2020 ◽  
Vol 13 ◽  
Author(s):  
Kavita Pandey ◽  
Dhiraj Pandey ◽  
Vatsalya Yadav ◽  
Shriya Vikhram
Keyword(s):  
Visually Impaired ◽  
Smart Phone ◽  
Emergency Situation ◽  
Daily Activities ◽  
Daily Life Activities ◽  
Best Friends ◽  
Visually Impaired People ◽  
The World ◽  
Impaired People ◽  
Impaired User

Background: According to the WHO report, around 4.07% of the world's population is visually impaired. About 90% of the visually impaired users live in the lower economic strata. In the fast moving technology, most of the invention misses the need of these people. Mainly the technologies were designed for mainstream people; visually impaired people always find an inability to access it. This inability arises primarily for reasons such as cost, for example, Perkins Brailler costs 80-248 dollars for the simple purpose of Braille input. Another major reason is the hassle of carrying the big equipment. Objective: Keeping all this in mind and making technology as their best friends, MAGIC-1 has been designed. The goal is to provide a solution in terms of an application, which helps the visually impaired user in their daily life activities. Method: The proposed solution assists visually impaired users through smart phone technology. If visually impaired users ever wished to have a touched guide into a smart phone, MAGIC-1 has the solution that consolidates all the important features in their daily activities. Results: The performance of the solution as a whole and its individual features in terms of usability, utility and other metrics, etc. has been tested with sample visually impaired users. Moreover, their performances in term of Errors per Word and Words per Minute have been observed. Conclusion: MAGIC-I, the proposed solution works as an assistant of visually impaired users to overcome their daily struggles and stay more connected to the world. A visually impaired user can communicate via their mobile devices with features like eyes free texting using braille, voice calling etc. They can easily take help in an emergency situation with the options of SOS emergency calling and video assistance.

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