Temporal patterns (how vehicles behave in our observed past) underline our reasoning of how people drive on the road, and can explain why we make certain predictions about interactions among road agents. In this paper...
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ISBN:
(纸本)9781728196817
Temporal patterns (how vehicles behave in our observed past) underline our reasoning of how people drive on the road, and can explain why we make certain predictions about interactions among road agents. In this paper we propose the ConceptNet trajectory predictor - a novel prediction framework that is able to incorporate agent interactions as explicit edges in a temporal knowledge graph. We demonstrate the sample efficiency and the overall accuracy of the proposed approach, and show that using the graphical structure to explicitly model interactions enables better detection of agent interactions and improved trajectory predictions on a large real-world driving dataset.
In response to the issue of poor real-time performance caused by the large computational load of feature-based methods, this paper proposed an RGB-D visual SLAM algorithm which integrates optical flow and feature-base...
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In this paper, we propose a novel direct visual odometry algorithm to take the advantage of a 360-degree camera for robust localization and mapping. Our system extends direct sparse odometry by using a spherical camer...
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ISBN:
(纸本)9781728196817
In this paper, we propose a novel direct visual odometry algorithm to take the advantage of a 360-degree camera for robust localization and mapping. Our system extends direct sparse odometry by using a spherical camera model to process equirectangular images without rectification to attain omnidirectional perception. After adapting mapping and optimization algorithms to the new model, camera parameters, including intrinsic and extrinsic parameters, and 3D mapping can be jointly optimized within the local sliding window. In addition, we evaluate the proposed algorithm using both real world and large-scale simulated scenes for qualitative and quantitative validations. The extensive experiments indicate that our system achieves start of the art results.
This paper studies a class of hybrid susceptible-infective-susceptible (SIS) epidemic models in the constant total population in the form of switched systems with multiple equilibria. First, this paper formulated a sw...
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This paper presents filtering methods for improvement of biosignal measurement accuracy - an ECG signal under the influence of electromagnetic interference, which has a significant impact on the operation of the IoB s...
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In this paper, for the e-commerce logistics network of cargo volume prediction, site closure, network adjustment and comprehensive evaluation and other issues, the establishment of the corresponding mathematical model...
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ISBN:
(纸本)9798350370058;9798350370164
In this paper, for the e-commerce logistics network of cargo volume prediction, site closure, network adjustment and comprehensive evaluation and other issues, the establishment of the corresponding mathematical model, based on the prediction results and the handling capacity of each logistics site and the transport capacity of the line to design the logistics network adjustment program, for the e-commerce logistics network for emergency mobilization and structural optimization of the problem to provide a solution. Firstly, the cargo volume of three important routes was predicted using ARIMA and LSTM models, and the weighted combination method was used to obtain the final results. Secondly, the network after site closure was optimized using simulated annealing algorithm to obtain a new line allocation scheme, and the load factor of each line was calculated. Then, the dynamically adjustable network was planned using a multi-objective dynamic decision model. Finally, the importance of each site and line was evaluated using the entropy weighting method TOPSIS model, and the change of the load rate of each line was observed under different random days and disturbance ratios, which was found to have little effect and the model was robust.
This paper presents Contact Mode Guided Manipulation Planning (CMGMP) for 3D quasistatic and quasidynamic rigid body motion planning in dexterous manipulation. The CMGMP algorithm generates hybrid motion plans includi...
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ISBN:
(纸本)9781728196817
This paper presents Contact Mode Guided Manipulation Planning (CMGMP) for 3D quasistatic and quasidynamic rigid body motion planning in dexterous manipulation. The CMGMP algorithm generates hybrid motion plans including both continuous state transitions and discrete contact mode switches, without the need for pre-specified contact sequences or pre-designed motion primitives. The key idea is to use automatically enumerated contact modes of environment-object contacts to guide the tree expansions during the search. Contact modes automatically synthesize manipulation primitives, while the sampling-based planning framework sequences those primitives into a coherent plan. We test our algorithm on fourteen 3D manipulation tasks, and validate our models by executing some plans open-loop on a real robot-manipulator system(1).
In modern container cloud computing environments, achieving efficient elastic scaling is crucial to optimizing resource utilization and improving system performance. This paper proposes a new prediction model based on...
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Owing to the restrictions of live experimentation, musculoskeletal simulation models play a key role in biological motor control studies and investigations. Successful results of which are then tried on live subjects ...
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ISBN:
(纸本)9781728196817
Owing to the restrictions of live experimentation, musculoskeletal simulation models play a key role in biological motor control studies and investigations. Successful results of which are then tried on live subjects to develop treatments as well as robot aided rehabilitation procedures for addressing neuromusculoskeletal anomalies ranging from limb loss, to tendinitis, from sarcopenia to brain and spinal injuries. Despite its significance, current musculoskeletal models are computationally expensive, and provide limited support for contact-rich interactions which are essential for studying motor behaviors in activities of daily living, during rehabilitation treatments, or in assistive robotic devices. To bridge this gap, this work proposes an automatic pipeline to generate physiologically accurate musculoskeletal, as well as hybrid musculoskeletal-exoskeletal models. Leveraging this pipeline we present MyoSim - a set of computationally efficient (over 2 orders of magnitude faster than state of the art) musculoskeletal models that support fully interactive contact rich simulation. We further extend MyoSim to support additional features that help simulate various reallife changes/diseases, such as muscle fatigue, and sarcopenia. To demonstrate the potential applications, several use cases, including interactive rehabilitation movements, tendon-reaffirmation, and the co-simulation with an exoskeleton, were developed and investigated for physiological correctness. Webpage: https://***/view/myosuite
This paper addresses the generation mechanism and avoidance method of negative stiffness during in-Hand manipulation with underactuated compliant hands. Firstly, a planar hand with two three-jointed fingers manipulati...
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ISBN:
(纸本)9781728196817
This paper addresses the generation mechanism and avoidance method of negative stiffness during in-Hand manipulation with underactuated compliant hands. Firstly, a planar hand with two three-jointed fingers manipulating a rectangular is set, and a quasi-static underactuated operation model is established. Secondly, based on this simulation model, we investigated the stiffness evolution during in-hand manipulation, and analyze the influence factors of system stiffness. Finally, a stiffness regulation method is developed to avoid negative stiffness during in-hand manipulation. The method is validated by simulation. The research results are beneficial to improve the performance of underactuated in-hand manipulation.
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