Gradient-direction-based Rectangles and Triangles Traffic Signs Detection Algorithm in Natural Scenes

Jin, Yanqiong; Guan, Xujun; Zhang, Hai

doi:10.1109/cac48633.2019.8997502

Cited by 2 publications

(2 citation statements)

References 10 publications

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“…Therefore, such new pseudo-hexagons can be iteratively broadcast through the network, either upon reaching an initial established tolerance value or during a certain period. The authors of [68] demonstrated that the mere substitution of the geometric figure for representing the sensor coverage area reduces the location error by approximately 12%, with respect to the use of rectangles.…”

Section: ) Hexagonal Intersectionmentioning

confidence: 99%

Systematic Review of Dynamic Multi-Object Identification and Localization: Techniques and Technologies

Ali¹,

Liu²,

He³

et al. 2021

IEEE Access

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Object identification and localization in indoor and outdoor environments are paramount issues in object-human interaction. Recent advancements in the data fusion capabilities of multi-sensor systems have paved the way for research on emerging object identification and positioning techniques. This review describes techniques and methods used in positioning technologies. State-of-the-art localization technologies are classified into range-based, range-free and AI-based categories. An in-depth analysis of localization approaches based on laser range finder, radio-frequency identification, ultra-wideband, inertial measurement unit, etc., are presented by providing a detailed comparison based on range, accuracy, measurement method, advantages, disadvantages, and their applications. Furthermore, we investigate stateof-the-art multimodal data fusion techniques that utilize probabilistic methods for the precise estimation of object identification in motion and its localization.INDEX TERMS Indoor and outdoor positioning systems; identification and localization; unstructured environment; multi-sensor system; multi-object; positioning and localization techniques.

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Section: ) Hexagonal Intersectionmentioning

confidence: 99%

Systematic Review of Dynamic Multi-Object Identification and Localization: Techniques and Technologies

Ali¹,

Liu²,

He³

et al. 2021

IEEE Access

View full text Add to dashboard Cite

show abstract

“…Most methods detect rectangles based on line analysis. Research used the Hough transform [21] or edge detection with gradient [22] to extract straight lines, and then find out shapes which satisfy artificial geometric conditions, such as that two pairs of opposite sides are parallel, to recognize rectangles. But the contours of components are not always perfect due to smudges or fading on scanned papers, complicating detection on sides of a CC.…”

Section: B Desirable Region Detection On Exam Papersmentioning

confidence: 99%

A Connected Components Based Layout Analysis Approach for Educational Documents

Liu

Yang

et al. 2021

2021 16th International Conference on Computer Science &Amp; Education (ICCSE)

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Layout analysis, which aims to detect and categorize areas of interest on document images, is an increasingly important part in document image processing. Existing researches have conducted layout analysis on various documents, but none has been proposed for documents yielded from teaching, i.e. exam papers and workbooks, which are worth studying. In this paper, we propose a novel layout analysis system to achieve two tasks for workbook pages and exam papers respectively. On one hand, we segment text and non-text areas of workbook pages. On the other hand, we extract regions of interest on exam papers. Our system is based on connected component (CC) analysis, specifically, it extracts geometric features and spatial information of CCs to recognize page elements. We carried out experiments on images collected from real-world scenarios, and promising results confirmed the applicability and effectiveness of our system.

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Gradient-direction-based Rectangles and Triangles Traffic Signs Detection Algorithm in Natural Scenes

Cited by 2 publications

References 10 publications

Systematic Review of Dynamic Multi-Object Identification and Localization: Techniques and Technologies

Systematic Review of Dynamic Multi-Object Identification and Localization: Techniques and Technologies

A Connected Components Based Layout Analysis Approach for Educational Documents

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