Results 11 to 20 of about 35,013 (237)

Improved African Vulture Optimization Algorithm Based on Quasi-Oppositional Differential Evolution Operator

open access: yesIEEE Access, 2022
In this study, an improved African vulture optimization algorithm (IAVOA) that combines the African vulture optimization algorithm (AVOA) with both quasi-oppositional learning and differential evolution is proposed to address specific drawbacks of the ...
Renju Liu   +5 more
doaj   +1 more source

Monocular Depth Estimation Based on Multi-Scale Depth Map Fusion

open access: yesIEEE Access, 2021
Monocular depth estimation is a basic task in machine vision. In recent years, the performance of monocular depth estimation has been greatly improved. However, most depth estimation networks are based on a very deep network to extract features that lead
Xin Yang   +4 more
doaj   +1 more source

Improved U-Net3+ with stage residual for brain tumor segmentation

open access: yesBMC Medical Imaging, 2022
Background For the encoding part of U-Net3+,the ability of brain tumor feature extraction is insufficient, as a result, the features can not be fused well during up-sampling, and the accuracy of segmentation will reduce.
Chuanbo Qin   +5 more
doaj   +1 more source

HCVNet: Binocular Stereo Matching via Hybrid Cost Volume Computation Module With Attention

open access: yesIEEE Access, 2022
Binocular stereo matching, a computer vision task typically using cost volume constructed from the left and right feature maps to estimate disparity and depth, is widely applied in 3D reconstruction, autonomous driving and robotics navigation.
Chenglin Dai   +4 more
doaj   +1 more source

MEA-Net: multilayer edge attention network for medical image segmentation

open access: yesScientific Reports, 2022
Medical image segmentation is a fundamental step in medical analysis and diagnosis. In recent years, deep learning networks have been used for precise segmentation.
Huilin Liu   +8 more
doaj   +1 more source

A Novel UAV Visual Positioning Algorithm Based on A-YOLOX

open access: yesDrones, 2022
The application of UAVs is becoming increasingly extensive. However, high-precision autonomous landing is still a major industry difficulty. The current algorithm is not well-adapted to light changes, scale transformations, complex backgrounds, etc.
Ying Xu   +5 more
doaj   +1 more source

Robot-assisted conformal additive manufacturing for continuous fibre-reinforced grid-stiffened shell structures

open access: yesVirtual and Physical Prototyping, 2023
The advents in continuous fibre-reinforced polymer additive manufacturing (CFRP-AM) present unprecedented opportunities for the rapid development of next-generation high-performance composites with selectively and spatially distributed reinforcement ...
Guoquan Zhang   +5 more
doaj   +1 more source

An Approach of One-vs-Rest Filter Bank Common Spatial Pattern and Spiking Neural Networks for Multiple Motor Imagery Decoding

open access: yesIEEE Access, 2020
Motor imagery (MI) is a typical BCI paradigm and has been widely applied into many aspects (e.g. brain-driven wheelchair and motor function rehabilitation training). Although significant achievements have been achieved, multiple motor imagery decoding is
Hongtao Wang   +8 more
doaj   +1 more source

Analysis of the static and dynamic characteristics of the electro-hydraulic pressure servo valve of robot

open access: yesScientific Reports, 2023
In this study, we comprehensively investigate the structure and operational principles of the Rotary Direct Drive Electro-Hydraulic Pressure Servo Valve (RDDPV).
Jianrui Zhang   +4 more
doaj   +1 more source

Hadamard Single-Pixel Imaging Based on Positive Patterns

open access: yesPhotonics, 2023
Hadamard single-pixel imaging (SPI) employs the differential measurement strategy to eliminate the effect of negative value of Hadamard basis patterns but leads to doubling the number of measurements.
Rui Sun   +4 more
doaj   +1 more source

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