The test is conducted for both indoor and outdoor environments. Once the performance testing is complete, the trained model is loaded onto a small DSP processor and equipped with ultrasonic sensors to detect the obstacles. impaired detection To find out more, see our, Browse more than 100 science journal titles, Read the very best research published in IOP journals, Read open access proceedings from science conferences worldwide, Published under licence by IOP Publishing Ltd, Bundesanstalt fr Materialforschung und prfung (BAM), IOP Conference Series: Materials Science and Engineering, Fast and accurate obstacle detection of manipulator in complex humanmachine interaction workspace, Traffic vehicle cognition in severe weather based on radar and infrared thermal camera fusion, In object detection deep learning methods, YOLO shows supremum to Mask R-CNN, M-YOLO: A Nighttime Vehicle Detection Method Combining Mobilenet v2 and YOLO v3, Non-contact measurement of human respiration using an infrared thermal camera and the deep learning method, Detection and Content Retrieval of Object in an Image using YOLO, Head of Division "Thermographic Methods" (m/f/d), 13 positions for PhD candidates/research associates, Copyright 2022 IOP Above all, the whole system is standalone and needs no internet connection to perform object detection and safe navigation. The indoor mode has a smaller threshold value for the distance of obstacle compared to the outdoor mode. We use cookies on our website to ensure you get the best experience. Images of objects that are highly relevant in the lives of the visually challenged are trained using deep learning neural networks. visually impaired obstacle estimation disnet monocular Ultrasonic sensors derive power only when the objects are not present in a captured scene. A YOLO (You look only once) algorithm is used in our project. This paper represents an IoT-enabled automated object recognition system that simplifies the mobility problems of the visually impaired in indoor and outdoor environments. Circuits Syst. ScienceDirect is a registered trademark of Elsevier B.V. ScienceDirect is a registered trademark of Elsevier B.V. IoT Enabled Automated Object Recognition for the Visually Impaired. Fall Detection and Prevention Control Using Walking-Aid Cane Robot. 16461654. However, these tactile marks vanish after some time, and then it is not easy for a blind person to differentiate between banknotes. Speakers or headphones are associated with the DSP processor to perceive predictions as an audio prompt. These kinds of devices are accurate in terms of location, but are ineffective in case of obstacle avoidance and object identification. Mancini, A.; Frontoni, E.; Zingaretti, P. Mechatronic System to Help Visually Impaired Users during Walking and Running. ; writing-original draft preparation, R.C.J. envision visually impaired Papers are submitted upon individual invitation or recommendation by the scientific editors and undergo peer review It has an omnidirectional wheel assisted with a high-speed processing controller using a LAM-based linearization system with a non-linear disturbance observer. These frames can also help to construct a proper dataset and to approach the challenging scenario, which can be dealt with to develop much more robust devices. In Proceedings of the 2016 IEEE Conference on Computer Vision and Pattern Recognition (CVPR), Las Vegas, NV, USA, 2730 June 2016; pp. It maintains the balance of the person and reduces the risk of falling. The hardware specifications of training device are i-9 processor, NVIDIA Tesla K80 GPU, having 2496 CUDA cores, 12 GB GDDR5 VRAM. Available online: Blindness and Vision Impairment. Augmentation and manual annotation are performed on the dataset to make the system robust and free from overfitting. Thus, even though the machine learning model processes the frames in real-time, it takes a lot of time to process the next frame, as it has a dependency on the number of the objects present in the current frame and the length of the name of object. Visually impaired people use Electronic Travel Aids (ETA) to detect obstacles and identify services to provide safe and informative navigation. rfid reader antennas xbee redbee chip modules having visually recognition impaired assistant object navigation based [.

In order to be human-readable, please install an RSS reader. After using this device, the proposed framework was found to be comfortable and easy to use in crowded areas. Aladrn, A.; Lopez-Nicolas, G.; Puig, L.; Guerrero, J.J. Navigation Assistance for the Visually Impaired Using RGB-D Sensor with Range Expansion.

The proposed system is relatively less weighty than existing systems; hence, a person can carry the developed system easily. ; Maire, M.; Belongie, S.; Hays, J.; Perona, P.; Ramanan, D.; Dollr, P.; Zitnick, C.L.

[, Parikh, N.; Shah, I.; Vahora, S. Android Smartphone Based Visual Object Recognition for Visually Impaired Using Deep Learning. This means that even though the number of objects which were detected is higher, the system will convey the information of all objects of only the first three categories and then process the next frame. It can also easily differentiate between objects and obstacles coming in front of the camera. Science and engineering can make technical interventions to the lives of visually impaired people in making them independent to navigate and perceive objects around them.

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KI$W$v@?^}Dba Ia*%ek~;>m 266270. The whole set-up is implemented in the single board DSP processor and has specifications of 64-bit, quad-core, and 1.5 GHz, as well as 4 GB SDRAM. Copyright 2022 Elsevier B.V. or its licensors or contributors. endobj As the similarity in banknotes is greater, confusion matrix for currency notes is shown in. Available online: Thaler, L.; Arnott, S.R. Semantic Scholar is a free, AI-powered research tool for scientific literature, based at the Allen Institute for AI. If the calculated distance is less than the threshold, then it will be considered as an obstacle. ; Das, A.; Jonas, J.B.; Keeffe, J.; Kempen, J.H. [. The rest of the paper is organized as follows: First, the methodology is explored in, In this section, the whole process is explained to provide navigation assistance to visually impaired people, which consists of the preparation and pre-processing of the dataset, augmentation, annotation and dataset training on the deep-learning model. impaired assistive For example, a car at far distance can be easily detected when enlarged, because after enlarging the image, the number of pixels is increased, and it becomes an easy task to detect that car. ; Flaxman, S.R. Clothing Matching for Visually Impaired Persons. The statements, opinions and data contained in the journal, 1996-2022 MDPI (Basel, Switzerland) unless otherwise stated. Results for different object classes in different scenarios are shown below in, Different approaches for object classification and object detection were also tested in given datasets, such as VGG-16, VGG-19 and Alexnet. Various rehabilitation workers and teachers working in this field were also involved to help to conduct the experiments smoothly. x=F|:GZoE _&z& I#'n5xWuMW..?^n9i~qe=cq_EW6mWo^?Qq(xIH7(`2YIpNL_'WMOIQM/Nl.^I5i< n=e#p'{7W.'7=v38|@&Cp"4\ 5ON=y#L]D~u}=rdxL:=1s ?8fN3DN H %"|-Ji9'wLt/zE*G=wp"zw2rlf{wUu|4_ To deal with this issue, the number of object categories is limited to three, but can be extended to five object classes for indoor circumstances. The model is also trained to perform banknote detection and recognition to help in daily business transaction-related activities along with other object detection and navigation assistance for visually impaired people. [, Fukasawa, A.J. Centre for Advanced Studies, Dr. A.P.J. % Images are augmented and manually annotated to achieve more robustness.

The device can work in real-time scenarios, as the processing time for object detection is a few milliseconds. A list of highly relevant objects to visually impaired people is collected, and the dataset is prepared manually and is used to train the deep learning model for multiple epochs. ; Leasher, J.; Limburg, H.; et al. A novel approach to vision enhancement for people with severe visual impairments that utilizes computer vision techniques to classify scene content so that visual enhancement of the scene can identify semantically important concepts. The statements, opinions and data contained in the journals are solely In terms of size and weight, 73% reacted that the size and weight are considerable, 20% treated that the size is not suitable, and weight needs to lessen, and the rest 7% people responded that the system is bulky. Visual impairments have become one of the most predominant problems for the last few decades.

This issue can be easily eliminated by increasing the threshold value or by considering only the highest label prediction probability. The time-domain analysis of the proposed system is given in. After training the collected dataset with various image augmentation techniques and multi-scale detection functionality of trained deep neural network, the proposed framework is able to detect objects in different scenarios, such as low illumination, different viewing angles, and various scale objects. The device is programmed to work in a fully automatic manner to perform object recognition and obstacle detection. BibTeX

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Otherwise, if the calculated distance is more than the threshold, then the next image frame will be captured and processed. The system is made for hundred objects of different classes. Vision impairment is classified into near and distance vision impairment. While in outdoor environments, trained objects such as cars, humans, and vehicles were used. If an object is detected in the captured image frame, equivalent audio is played after the detection of an object to convey information to the user.

Meshram, V.V. The proposed aid for visually impaired seems good in the sense that it does not need any prior knowledge about the position, shape and size of object and obstacles. In Proceedings of the 2017 IEEE Conference on Computer Vision and Pattern Recognition (CVPR), Honolulu, HI, USA, 2126 July 2017; pp. A Haptic Solution to Assist Visually Impaired in Mobility Tasks. U[y"r^6$wi#pU,O{@eN2_ii=9Noo#o32"s+cQ^#w!.Hw3@8`A7X$9TVD"hIz,^$RM )0uxK!L'I(:IgN2AIUQ1O. The testing accuracy and processing time for a single image frame are given in, Information optimization is performed to get more information in a shorter time duration. indoors impaired visually recognition object vision fig computer based rfid visually recognition impaired assistant object navigation based

The proposed system can work universally in the existing infrastructure which has been used before by visually impaired people. This paper proposes an artificial intelligence-based fully automatic assistive technology to recognize different objects, and auditory inputs are provided to the user in real time, which gives better understanding to the visually impaired person about their surroundings. Global Trends in the Magnitude of Blindness and Visual Impairment. The system first analyses the current frame for object detectionif an object is detected which means the object is in front of the device, then there is no need for searching another obstacle. 2021 The Authors. several techniques or approaches, or a comprehensive review paper with concise and precise updates on the latest visually impaired obstacle All were given sticks and a supporting person while using the proposed framework. Bhatlawande, S.; Mahadevappa, M.; Mukherjee, J.; Biswas, M.; Das, D.; Gupta, S. Design, Development, and Clinical Evaluation of the Electronic Mobility Cane for Vision Rehabilitation. In Proceedings of the 2009 IEEE Conference on Computer Vision and Pattern Recognition, Miami, FL, USA, 2025 June 2009; pp. Darknet-53 is used as a feature extractor in YOLO-v3 that is composed of 53 convolutional layers. Kang, M.-C.; Chae, S.-H.; Sun, J.-Y. MDPI stays neutral with regard to jurisdictional claims in published maps and institutional affiliations. View 2 excerpts, references background and methods. Takatori, N.; Nojima, K.; Matsumoto, M.; Yanashima, K.; Magatani, K. Development of voice navigation system for the visually impaired by using IC tags. Editors select a small number of articles recently published in the journal that they believe will be particularly Please let us know what you think of our products and services. 3 0 obj detection object space impaired obstacle visually detectors SUN database: Large-scale scene recognition from abbey to zoo. impaired visually perks pir Recognition-by-components (RBC) provides a principled account of the heretofore undecided relation between the classic principles of perceptual organization and pattern recognition. The transfer learning method requires a pre-trained model and it will be beneficial when a similar dataset is already trained over this model and respective generated trained model files will be used for transfer learning. This proof of concept system can handle clothes in deficient color without any pattern, as well as clothing with multiple colors and complex patterns to aid both blind and color deficient people.

However, the effective utilization of sensor-based technologies and computer vision could result in a highly efficient and supportive device, to make them aware of the surroundings. 4 0 obj Volume 1085, In Proceedings of the 2018 IEEE Intelligent Vehicles Symposium (IV), Changshu, China, 2630 June 2018; pp. A camera-based assistive system for visually impaired or blind persons to read text from signage and objects that are held in the hand and then communicate this information aurally, which outperforms previous algorithms on some measures.

65176525. Once the images were annotated, the respective annotation files were also generated.

; Braithwaite, T.; Cicinelli, M.V. of Electronics & Communication Engineering, Amal Jyothi College of Engineering, Kanjirappally, Kerala, India, 2 impaired detection The detected image is converted to speech by using the gTTS module and the audio result is provided to the user through a headset. Thus, the time taken to prompt person five times is reduced to 5 person. By clicking accept or continuing to use the site, you agree to the terms outlined in our.

Neural Correlates of Natural Human Echolocation in Early and Late Blind Echolocation Experts. paper provides an outlook on future directions of research or possible applications. 1 0 obj visually impaired obstacle estimation disnet monocular JavaScript seems to be disabled in your browser. For prior to publication. Editors Choice articles are based on recommendations by the scientific editors of MDPI journals from around the world. Object Detection Featuring 3D Audio Localization for Microsoft HoloLensA Deep Learning based Sensor Substitution Approach for the Blind. Author to whom correspondence should be addressed.

Various challenges are faced by visually impaired patients even in the familiar environment. ; Goh, P. Multi-Sensor Obstacle Detection System Via Model-Based State-Feedback Control in Smart Cane Design for the Visually Challenged. Accurate Image Super-Resolution Using Very Deep Convolutional Networks. In Proceedings of the 11th International Joint Conference on Biomedical Engineering Systems and Technologies, Funchal, Portugal, 1921 January 2018; pp. ; Patil, K.; Meshram, V.A. CVPR 2001. In Proceedings of the 2018 International Conference on Communication and Signal Processing (ICCSP), Chennai, India, 35 April 2018; pp. The length of the cane is directly proportional to the range of touch sensation or the detection of obstacles. 2 0 obj Ser. The performance of the proposed device has been tested on 36 people, including 20 visually impaired and 16 blind-folded people belonging to different age groups.

Jarraya, S.K. Vision impairment is one of the major health problems in the world. Frame processing time in blind assistive devices is different for a normal human and visually impaired persons. ; Demirci, M.F. ; Li, K.; Fei, L.-F. ImageNet: A large-scale hierarchical image database. The time complexity is low, allowing a user to perceive the surrounding scene in real time. By continuing you agree to the use of cookies. For switching in between different modes, a person must swipe their hand in front of the device, which can be sensed by ultrasonic sensors to perform mode-switching. Vision impairment or vision loss reduces seeing or perceiving ability, which cannot be cured through wearing glasses. The funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript, or in the decision to publish the results. Four laser sensors are used in the system to detect the objects in the direction of the front, left, right and ground. A novel obstacle detection method based on deformable grid for the visually impaired. The model file after training on different object classes is tested on a real-time live video feed along with images left for the testing dataset. ; Garlisi, D.; Valvo, A.L. The authors declare no conflict of interest. A live video feed was associated to the framework and image frames were subsequently captured. Then, the YOLO-v3 model is trained with the generated dataset either through transfer learning or with direct training.

Unlike people who are born blind, they depend a lot on other people for doing their day to day activities. 12. You seem to have javascript disabled. In Proceedings of the 2006 International Conference of the IEEE Engineering in Medicine and Biology Society, New York, NY, USA, 30 August3 September 2006; pp. Thus, if there is a currency detection mode in the device, that mode must have a higher object detection threshold value than other modes to avoid such ambiguity. After completing augmentation, the dataset in the training and validation set was increased by 10 times the initial set of images, which resulted in a wide variety of images. Everingham, M.; Van Gool, L.; Williams, C.K.I. <> and C.M.T.-G.; supervision, M.K.D. Resources are used in an optimized way to reduce energy consumption. Al-Madani, B.; Orujov, F.; Maskeliunas, R.; Damaeviius, R.; Venckauskas, A. Cifar-10 Image Classification with Convolutional Neural Networks for Embedded Systems. Rastogi, R.; Pawluk, T.V.D. DI`Pd#|#?d4M5PnCp&g0!9?^(XJDamb :Ge~\eobY77B) (\Sn pVO?H. _xi'bx2Fy %PDF-1.7 10331038. If a user wants to record image frames, which came across the device, it can be stored in subsequent frames. To read text, Optical Character Recognizer (OCR) is used after preprocessing the input image frame. 1085 012006, 1 Associate Professor, Dept. Proposed work is also compared with the other works in the domain of assistance for the visually impaired and is shown in. The confusion matrix is prepared for a threshold of 0.5; because of this, if the captured image is not proper, there may be chances that image shows some similarity with other banknotes along with the actual currency note.

Trinocular Microscope with DIN Objective and Camera 40x - 2000x, Binocular Inverted Metallurgical Microscope 100x - 1200x, Trinocular Inverted Metallurgical Microscope 100x - 1200x, Microscope Blank Glass Slides, 50 cover slips, Junior Medical Microscope with Wide Field Eyepiece & LED 100x - 1500x. Second is the case where the same kind of objects exist multiple times in the captured frame.

The remaining 500 images from each training class were divided into a ratio of 7:3 for training and validation set, respectively. detection impaired visually retinanet Before the trials, all those involved were briefly informed about the device so that users were aware about the experimentation steps. Device instructions can also be made multi-lingual by just recording the instructions in other languages. [. 2005 IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR'05) - Workshops. Hoang, V.-N.; Nguyen, T.-H.; Le, T.-L.; Tran, T.-H.; Vuong, T.-P.; Vuillerme, N. Obstacle detection and warning system for visually impaired people based on electrode matrix and mobile Kinect. impaired IOP Conference Series: Materials Science and Engineering, All images were annotated manually with the LabelImg tool and the bounding box was made around the object without taking extra unnecessary areas. object instances testing database included examples tracking visually detection impaired recognition assistance navigational joint application deep bycicles motocycles obstacles vehicles