Existing person re-identification methods have achieved remarkable advances in appearance-based identity association across homogeneous cameras, such as ground-ground matching. However, as a more practical scenario, a...
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ISBN:
(数字)9798350353006
ISBN:
(纸本)9798350353013
Existing person re-identification methods have achieved remarkable advances in appearance-based identity association across homogeneous cameras, such as ground-ground matching. However, as a more practical scenario, aerial-ground person re-identification (AGPReID) among heterogeneous cameras has received minimal attention. To alleviate the disruption of discriminative identity representation by dramatic view discrepancy as the most significant challenge in AGPReID, the view-decoupled transformer (VDT) is proposed as a simple yet effective framework. Two major components are designed in VDT to decouple view-related and view-unrelated features, namely hierarchical subtractive separation and orthogonal loss, where the former separates these two features inside the VDT, and the latter constrains these two to be independent. In addition, we contribute a large-scale AGPReID dataset called CARGO, consisting of five/eight aerial/ground cameras, 5,000 identities, and 108,563 images. Experiments on two datasets show that VDT is a feasible and effective solution for AGPReID, surpassing the previous method on mAP/Rank1 by up to 5.0%/2.7% on CARGO and 3.7%/5.2% on AG-ReID, keeping the same magnitude of computational complexity. Our project is available at https://***/LinlyAC/VDT-AGPReID.
The rapid development of Large Language Models (LLMs) creates new opportunities for recommender systems, especially by exploiting the side information (e.g., descriptions and analyses of items) generated by these mode...
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In this paper, a beam steering patch antenna with two parasitic array elements loaded with shorting vias for sub-6 GHz 5G applications is proposed. Two parasitic elements placed at the upper left and below right of th...
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ISBN:
(数字)9798350314755
ISBN:
(纸本)9798350314762
In this paper, a beam steering patch antenna with two parasitic array elements loaded with shorting vias for sub-6 GHz 5G applications is proposed. Two parasitic elements placed at the upper left and below right of the circular driven patch. The mutual coupling effect between both driven and parasitic has managed to steer the beam. The parasitic elements electrically shorten the ground plane through shorting vias. In simulation, shorting vias is like an artificial switch that connects parasitic element to ground plane to change its effective electrical length hence forming a reflector and director. Based on the condition of the shorting vias either ON/OFF, the proposed antenna is able to steer the main beam in three different directions to ±23° and 0° at the resonant frequency of 3.5 GHz with maximum gain of 7.54 dBi.
The terrestrial ecosystem in China mitigates 21%-45%of the national contemporary fossil fuel CO_(2) emissions every *** and strengthening the land carbon sink is essential for reaching China’s target of carbon ***,th...
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The terrestrial ecosystem in China mitigates 21%-45%of the national contemporary fossil fuel CO_(2) emissions every *** and strengthening the land carbon sink is essential for reaching China’s target of carbon ***,this sink is subject to large uncertainties due to the joint impacts of climate change,air pollution,and human ***,we explore the potential of strengthening land carbon sink in China through anthropogenic interventions,including forestation,ozone reduction,and litter removal,taking advantage of a well-validated dynamic vegetation model and meteorological forcings from 16 climate *** anthropogenic interventions,considering Shared Socioeconomic Pathways(SSP)scenarios,the land sink is projected to be 0.26-0.56 Pg C a^(-1) at 2060,to which climate change contributes 0.06-0.13 Pg C a^(-1) and CO_(2) fertilization contributes 0.08-0.44 Pg C a^(-1) with the stronger effects for higher emission *** anthropogenic interventions,under a close-to-neutral emission scenario(SSP1-2.6),the land sink becomes 0.47-0.57 Pg C a^(-1) at 2060,including the contributions of 0.12 Pg C a^(-1) by conservative forestation,0.07 Pg C a^(-1) by ozone pollution control,and 0.06-0.16 Pg C a^(-1) by 20%litter removal over planted *** sink can mitigate 90%-110% of the residue anthropogenic carbon emissions in 2060,providing a solid foundation for the carbon neutrality in China.
Human-robot interaction (HRI) is considered as one of the key techniques of space intelligence robots. Few typical features of complicated human actions need to be captured and understood accurately by intelligent rob...
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This paper proposes the partially parallel low-complexity Chase (PPLCC) decoding for Reed-Solomon (RS) codes. With the formulated test-vectors, the Kötter’s interpolation based Chase decoding events are processe...
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ISBN:
(纸本)9781665459761
This paper proposes the partially parallel low-complexity Chase (PPLCC) decoding for Reed-Solomon (RS) codes. With the formulated test-vectors, the Kötter’s interpolation based Chase decoding events are processed in a partially parallel manner, maintaining both low decoding complexity and latency. The decoding will be terminated once a codeword candidate that satisfies the maximum-likelihood (ML) criterion is found. Furthermore, a skipping rule is introduced to reduce the decoding complexity by assessing the Hamming distance between an estimated codeword and the test-vector. Simulation results show that the proposed PPLCC decoding achieves an improved tradeoff between decoding complexity and latency over several benchmark decoding schemes.
Infrared and visible image fusion (IVIF) aims at integrate the advantages of difference modal image. Most existing deep learning-based methods often focus on single IVIF task and ignore the effect of frequency informa...
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Sustainable power supply is a challenge for portable and wearable electronic devices such as cell phones and headsets. To address this, researchers proposed capturing biomechanical energy from human motion to generate...
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ISBN:
(数字)9798350355369
ISBN:
(纸本)9798350355376
Sustainable power supply is a challenge for portable and wearable electronic devices such as cell phones and headsets. To address this, researchers proposed capturing biomechanical energy from human motion to generate electricity. This paper proposed and developed a lightweight wearable device to capture the biomechanical energy from the human knee motion. To reduce the effect of inertial force on human gait, we developed a lightweight and compact transmission chain to convert the bidirectional rotation of the knee to a unidirectional rotation of the generator. Two input bevel gears with opposite one-way bearings on the same shaft are engaged with a single output bevel gear of the generator thereby only one input bevel gear is engaged for each input direction, achieving unidirectional output. In addition, to reduce velocity fluctuation and further minimize the effect of inertial force, a flywheel was fixed to the motor shaft via a gearbox. A prototype of the wearable device was developed and tested on a subject walking on a treadmill. Experimental results shows the flywheel enabled the harvester to achieve a continuous output while halving voltage fluctuations compared to a conventional harvester. The harvesters average power output can reach 0.11 W with minimal effects on the subject’s walking gait.
The quantum noise based terahertz signal encryption scheme is proposed, a 16 Gbits-1 secure terahertz communication system at 300 GHz with the optical communication realms is demonstrated, taking a significant step to...
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Vehicular edge computing (VEC) is an emerging technology with significant potential in the field of internet of vehicles (IoV), enabling vehicles to perform intensive computational tasks locally or offload them to nea...
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