Results 11 to 20 of about 350,925 (266)

Intelligent Control System to Irrigate Orchids Based on Visual Recognition and 3D Positioning

open access: yesApplied Sciences, 2021
This work develops a novel automatic irrigation system to implement the customized and accurate watering for an individual seedling. The system integrates the modules of visual recognition of the stem-leaf junction, identification of the stem-root ...
Ting-Wei Chang   +2 more
doaj   +1 more source

Multiple Cylinder Extraction from Organized Point Clouds

open access: yesSensors, 2021
Most man-made objects are composed of a few basic geometric primitives (GPs) such as spheres, cylinders, planes, ellipsoids, or cones. Thus, the object recognition problem can be considered as one of geometric primitives extraction.
Saed Moradi   +2 more
doaj   +1 more source

Coupling RetinaFace and Depth Information to Filter False Positives

open access: yesApplied Sciences, 2023
Face detection is an important problem in computer vision because it enables a wide range of applications, such as facial recognition and an analysis of human behavior.
Loris Nanni   +3 more
doaj   +1 more source

Local Property of Depth Information in 3D Images and Its Application in Feature Matching

open access: yesMathematics, 2023
In image registration or image matching, the feature extracted by using the traditional methods does not include the depth information which may lead to a mismatch of keypoints.
Erbing Yang   +4 more
doaj   +1 more source

Consolidation of multiple depth maps [PDF]

open access: yes2011 IEEE International Conference on Computer Vision Workshops (ICCV Workshops), 2011
Consolidation of point clouds, including denoising, outlier removal and normal estimation, is an important pre-processing step for surface reconstruction techniques. We present a consolidation framework specialized on point clouds created by multiple frames of a depth camera.
Irene Reisner-Kollmann   +1 more
openaire   +1 more source

Noise-Resilient Depth Estimation for Light Field Images Using Focal Stack and FFT Analysis

open access: yesSensors, 2022
Depth estimation for light field images is essential for applications such as light field image compression, reconstructing perspective views and 3D reconstruction.
Rishabh Sharma, Stuart Perry, Eva Cheng
doaj   +1 more source

Directional Ring Difference Filter for Robust Shape-from-Focus

open access: yesMathematics, 2023
In the shape-from-focus (SFF) method, the quality of the 3D shape generated relies heavily on the focus measure operator (FM) used. Unfortunately, most FMs are sensitive to noise and provide inaccurate depth maps.
Khurram Ashfaq, Muhammad Tariq Mahmood
doaj   +1 more source

Depth Map Decomposition for Monocular Depth Estimation

open access: yes, 2022
We propose a novel algorithm for monocular depth estimation that decomposes a metric depth map into a normalized depth map and scale features. The proposed network is composed of a shared encoder and three decoders, called G-Net, N-Net, and M-Net, which estimate gradient maps, a normalized depth map, and a metric depth map, respectively.
Jinyoung Jun   +3 more
openaire   +2 more sources

No-Reference Depth Map Quality Evaluation Model Based on Depth Map Edge Confidence Measurement in Immersive Video Applications

open access: yesFuture Internet, 2019
When it comes to evaluating perceptual quality of digital media for overall quality of experience assessment in immersive video applications, typically two main approaches stand out: Subjective and objective quality evaluation.
Safak Dogan   +3 more
doaj   +1 more source

The stereoscopic analysis and depth map creation

open access: yesEuropean Journal of Business Science and Technology, 2016
This contribution is focused on the use of the stereoscopic image for the purpose of depth map creation. Further, methods for calibration of the camera(s) are discussed. A stereoscopic head was constructed for the purpose of creating a stereoscopic image.
Ondřej Švehla
doaj   +1 more source

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