Results 31 to 40 of about 4,496,548 (308)

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

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

Photon counting compressive depth mapping

open access: yesOptics Express, 2013
We demonstrate a compressed sensing, photon counting lidar system based on the single-pixel camera. Our technique recovers both depth and intensity maps from a single under-sampled set of incoherent, linear projections of a scene of interest at ultra-low light levels around 0.5 picowatts.
Howland, Gregory A.   +3 more
openaire   +4 more sources

Cascaded Multi-Task Learning of Head Segmentation and Density Regression for RGBD Crowd Counting

open access: yesIEEE Access, 2020
In this paper we propose a novel regression based RGBD crowd counting method. Compared with previous RGBD crowd counting methods which mainly exploit depth cue to facilitate person/head detection, our approach adopts density map regression and is more ...
Desen Zhou, Qian He
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

FACE RECOGNITION TECHNIQUES

open access: yesInformatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2020
The problem of face recognition is discussed. The main methods of recognition are considered. The calibrated stereo pair for the face and calculating the depth map by the correlation algorithm are used.
Olexandr N. Romanyuk   +5 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

Depth map upsampling using depth local features

open access: yesElectronics Letters, 2014
A depth map upsampling method using depth local features is proposed. Depth discontinuity and depth variance are extracted from a low‐resolution depth map and a colour image as the depth local features. They are incorporated into an energy function for the Markov random field (MRF)‐based depth upsampling.
Y.S. Kang, S.B. Lee, Y.S. Ho
openaire   +1 more source

Fast 3D-HEVC Depth Map Encoding Using Machine Learning

open access: yesIEEE transactions on circuits and systems for video technology (Print), 2020
This paper presents a fast depth map encoding for 3D-High Efficiency Video Coding (3D-HEVC) based on static decision trees. We used data mining and machine learning to correlate the encoder context attributes, building the static decision trees.
Mário Saldanha   +3 more
semanticscholar   +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

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