QR Code Without Impairing the Scenery and Detection System for the visually impaired

Mashiba, Yuichi; Salih, Hisham Elser Bilal; Wakatsuki, Naoto; Mizutani, Koichi; Zempo, Keiichi

doi:10.1109/gcce50665.2020.9291733

Cited by 2 publications

(1 citation statement)

References 10 publications

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“…Quick Response (QR) codes are widely used by various applications which require reliable QR codes identification, such as mobile robot localization and navigation [1]- [4], transportation platform localization and navigation [5], [6], augmented reality [7], smart wheelchair localization and navigation [8], real-time objects identification for the visually impaired [9], structural displacement measurement [10], conveyer belt in the agro-food supply chain [11], [12], warehouse management [13], autonomous library robot [14], indoor parking vehicle-tracking system [15], and high-speed moving cars identification [16]. Many researchers developed novel QR codes identification algorithms and QR codes identification algorithms enhancements to achieve maximum identification performance.…”

Section: Introductionmentioning

confidence: 99%

Moving Quick Response Codes Identification: System Performance Analysis and Maximization by Optimization of Illuminance and Exposure Time

Sunarko¹,

Faridah²,

Arif³

et al. 2022

International Journal on Advanced Science, Engineering and Information Technology

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We studied the relationship of Quick Response (QR) code identification system performances with illuminance on the QR code, exposure time of the camera, and relative moving speed. We studied the root causes of low identification performance problems on moving QR code as well. A physical experiment method study on a minimal working example of a real-time moving QR codes identification system with ZBar QR codes identification algorithm has done, and then the results were quantitatively and qualitatively analyzed. The values of illuminance on the QR code, exposure time of the camera, and relative moving speed used in the experiments were 140 lux -640 lux, 0.7 ms -22.2 ms, and 0 m/s -2.5 m/s, respectively. Our data boundaries of the experiment results regarding exposure and motion blur (mediator variables) were respectively 0.108 lux•s -12.476 lux•s and 0.0 pixel -30.4 pixel. We identified physical phenomena in imaging, exposure and motion blur, could make the QR code image too dark/too bright and motion blurred.Such phenomena could make the QR code hard to identify and being the root cause of the problems. Our quantitative study proved that identification system performance is affected by illuminance, exposure time, and relative moving speed. Finally, we proposed a novel solution to overcome the problems by using a numerical method to compute the optimal illuminance on the QR code and the camera's exposure time for the given relative moving speed of the system.

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Section: Introductionmentioning

confidence: 99%

Moving Quick Response Codes Identification: System Performance Analysis and Maximization by Optimization of Illuminance and Exposure Time

Sunarko¹,

Faridah²,

Arif³

et al. 2022

International Journal on Advanced Science, Engineering and Information Technology

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Navigating the need for accessible labelling through the narratives of consumers with visual impairment in India

Thadikaran,

Singh

2024

British Journal of Visual Impairment

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This study aims to understand the strategies consumers with visual impairment (CWV) use in acquiring product information and explores preferences for accessible labelling and its benefits. This study employed the qualitative approach of thematic analysis. A snowball sampling technique was used to recruit participants. Data were collected from CWV through semi-structured interviews. The sample size of this study was 12. The data were analysed using NVivo software. The study revealed three strategies used by CWV to obtain product information, namely reliance on caregivers, staff, and technology. However, all the strategies employed have multiple drawbacks. The study reported a high preference for accessible labelling in braille and quick response (QR) codes. Implementing a combination of braille labels and QR codes on product packages was the most beneficial strategy for CWV. The Implementation of accessible labels ensures inclusion in the marketplace.

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QR Code Without Impairing the Scenery and Detection System for the visually impaired

Cited by 2 publications

References 10 publications

Moving Quick Response Codes Identification: System Performance Analysis and Maximization by Optimization of Illuminance and Exposure Time

Moving Quick Response Codes Identification: System Performance Analysis and Maximization by Optimization of Illuminance and Exposure Time

Navigating the need for accessible labelling through the narratives of consumers with visual impairment in India

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