Results 1 to 10 of about 75,070 (261)

Context-Driven Active Contour (CDAC): A Novel Medical Image Segmentation Method Based on Active Contour and Contextual Understanding [PDF]

open access: yesSensors
Lung diseases, including chronic obstructive pulmonary disease (COPD) and pulmonary fibrosis, pose significant health challenges due to their high morbidity and mortality rates.
Suane Pires Pinheiro da Silva   +8 more
doaj   +2 more sources

Multipass Active Contours for an Adaptive Contour Map [PDF]

open access: yesSensors, 2013
Isocontour mapping is efficient for extracting meaningful information from a biomedical image in a topographic analysis. Isocontour extraction from real world medical images is difficult due to noise and other factors.
Kwang Nam Choi   +4 more
doaj   +4 more sources

A fast region-based active contour for non-rigid object tracking and its shape retrieval [PDF]

open access: yesPeerJ Computer Science, 2021
Conventional tracking approaches track objects using a rectangle bounding box. Gait, gesture and many medical analyses require non-rigid shape extraction.
Hiren Mewada   +5 more
doaj   +3 more sources

Active contour model by combining edge and region information discrete dynamic systems

open access: yesAdvances in Mechanical Engineering, 2017
The basic idea of active contour model upon the image segmentation problem is evolved into a closed curve about the functional minimization problems. Active contour model based on edge information takes advantage of gradient information, and it has some ...
Zhifeng Wang, Yan-Jun Liu
doaj   +2 more sources

Sparse texture active contour. [PDF]

open access: yesIEEE Trans Image Process, 2013
In image segmentation, we are often interested in using certain quantities to characterize the object, and perform the classification based on criteria such as mean intensity, gradient magnitude, and responses to certain predefined filters. Unfortunately, in many cases such quantities are not adequate to model complex textured objects.
Gao Y, Bouix S, Shenton M, Tannenbaum A.
europepmc   +6 more sources

Segmentation with Active Contours [PDF]

open access: yesImage Processing On Line, 2021
Active contours (also known as snakes) have shown their ability to introduce regularity on image segmentation. In contrast with level-set approaches, the active contours techniques based on a contour parameterization are able to maintain the initial topology of the area of interest.
Pierre, Fabien   +4 more
openaire   +2 more sources

ผลการพัฒนาระบบควบคุมคุณภาพของสินค้า ประเภทกางเกงใน ด้วยอัลกอริทึม Active Contour

open access: yesJournal of Computer and Creative Technology, 2023
การวิจัยครั้งนี้มีวัตถุประสงค์ 1. เพื่อพัฒนาระบบควบคุมคุณภาพของสินค้า   ประเภทกางเกงใน ด้วยอัลกอริทึมแอ็กทิฟคอนทัวร์ และ 2. เพื่อประเมินประสิทธิภาพและประสิทธิผลระบบควบคุมคุณภาพของสินค้าที่พัฒนาขึ้น งานวิจัยนี้เป็นการวิจัยและพัฒนา โดยใช้อัลกอริทึมแอ็กท ...
นนท์ปวิธ ทนทอง   +1 more
doaj   +1 more source

Wasserstein active contours [PDF]

open access: yes2012 19th IEEE International Conference on Image Processing, 2012
In this paper, we propose a novel and rigorous framework for region-based active contours that combines the Wasserstein distance between statistical distributions in arbitrary dimension and shape derivative tools. To speed-up the computation and be able to handle high-dimensional features and large-scale data, we introduce an approximation of the ...
Peyré, Gabriel   +2 more
openaire   +2 more sources

ADAPTIVE INITIAL CONTOUR AND PARTLY-NORMALIZATION ALGORITHM FOR IRIS SEGMENTATION OF BLURRY IRIS IMAGES

open access: yesJournal of ICT, 2022
Iris segmentation is a process to isolate the accurate iris region from the eye image for iris recognition. Iris segmentation on non-ideal and noisy iris images is accurate with active contour. Nevertheless, it is currently unclear on how active contour
Shahrizan Jamaludin   +3 more
doaj   +1 more source

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