Results 21 to 30 of about 167,358 (260)

LSD: a Line Segment Detector [PDF]

open access: yesImage Processing On Line, 2012
LSD is a linear-time Line Segment Detector giving subpixel accurate results. It is designed to work on any digital image without parameter tuning. It controls its own number of false detections: On average, one false alarms is allowed per image. The method is based on Burns, Hanson, and Riseman's method, and uses an a-contrario validation approach ...
Rafael Grompone von Gioi   +3 more
openaire   +3 more sources

A PDE Method to Segment Image Linear Objects with Application to Lens Distortion Removal

open access: yesELCVIA Electronic Letters on Computer Vision and Image Analysis, 2007
In this paper, we propose a partial differential equation based method to segment image objects, which have a given parametric shape based on energy functional.
Moumen T. El-Melegy, Nagi H. Al-Ashwal
doaj   +1 more source

Handwriting-Based Text Line Segmentation from Malayalam Documents

open access: yesApplied Sciences, 2023
Optical character recognition systems for Malayalam handwritten documents have become an open research area. A major hindrance in this research is the unavailability of a benchmark database. Therefore, a new database of 402 Malayalam handwritten document
Pearlsy P V, Deepa Sankar
doaj   +1 more source

An Approach to a Comprehensive Test Framework for Analysis and Evaluation of Text Line Segmentation Algorithms

open access: yesSensors, 2011
The paper introduces a testing framework for the evaluation and validation of text line segmentation algorithms. Text line segmentation represents the key action for correct optical character recognition. Many of the tests for the evaluation of text line
Zoran N. Milivojevic   +2 more
doaj   +1 more source

Research on Lane Line Detection Algorithm Based on Instance Segmentation

open access: yesSensors, 2023
Aiming at the current lane line detection algorithm in complex traffic scenes, such as lane lines being blocked by shadows, blurred roads, and road sparseness, which lead to low lane line detection accuracy and poor real-time detection speed, this paper ...
Wangfeng Cheng   +2 more
doaj   +1 more source

Basic Test Framework for the Evaluation of Text Line Segmentation and Text Parameter Extraction

open access: yesSensors, 2010
Text line segmentation is an essential stage in off-line optical character recognition (OCR) systems. It is a key because inaccurately segmented text lines will lead to OCR failure. Text line segmentation of handwritten documents is a complex and diverse
Darko Brodić   +2 more
doaj   +1 more source

Tapped area detection and new tapping line location for natural rubber trees based on improved mask region convolutional neural network

open access: yesFrontiers in Plant Science, 2023
Aiming at the problem that the rubber tapping robot finds it difficult to accurately detect the tapped area and locate the new tapping line for natural rubber trees due to the influence of the rubber plantation environment during the rubber tapping ...
Yaya Chen   +5 more
doaj   +1 more source

An efficient, font independent word and character segmentation algorithm for printed Arabic text

open access: yesJournal of King Saud University: Computer and Information Sciences, 2022
Characters segmentation is a necessity and the most critical stage in Arabic OCR system. It has attracted the interest of a wide range of researchers. However, the nature of the Arabic cursive script poses extra challenges that need further investigation.
Aziz Qaroush   +5 more
doaj   +1 more source

MT-TPPNet: Leveraging Decoupled Feature Learning for Generic and Real-Time Multi-Task Network

open access: yesComputers
Transportation panoptic perception (TPP) is a fundamental capability for both on-board and roadside monitoring systems. In this paper, we propose an end-to-end lightweight multitask model, MT-TPPNet, which jointly performs three tasks: object detection ...
Xiaokun Tang   +3 more
doaj   +1 more source

A Condition Evaluation Simplified Method for Traction Converter Power Module Based on Operating Interval Segmentation

open access: yesSensors, 2023
In the actual operation of urban rail vehicles, it is essential to evaluate the condition of the traction converter IGBT modules. Considering the fixed line and the similarity of operation conditions between adjacent stations, this paper proposes an ...
Lei Wang   +4 more
doaj   +1 more source

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