40 research outputs found

    RainSD: Rain Style Diversification Module for Image Synthesis Enhancement using Feature-Level Style Distribution

    Full text link
    Autonomous driving technology nowadays targets to level 4 or beyond, but the researchers are faced with some limitations for developing reliable driving algorithms in diverse challenges. To promote the autonomous vehicles to spread widely, it is important to address safety issues on this technology. Among various safety concerns, the sensor blockage problem by severe weather conditions can be one of the most frequent threats for multi-task learning based perception algorithms during autonomous driving. To handle this problem, the importance of the generation of proper datasets is becoming more significant. In this paper, a synthetic road dataset with sensor blockage generated from real road dataset BDD100K is suggested in the format of BDD100K annotation. Rain streaks for each frame were made by an experimentally established equation and translated utilizing the image-to-image translation network based on style transfer. Using this dataset, the degradation of the diverse multi-task networks for autonomous driving, such as lane detection, driving area segmentation, and traffic object detection, has been thoroughly evaluated and analyzed. The tendency of the performance degradation of deep neural network-based perception systems for autonomous vehicle has been analyzed in depth. Finally, we discuss the limitation and the future directions of the deep neural network-based perception algorithms and autonomous driving dataset generation based on image-to-image translation.Comment: Under Revie

    Rapid suppression of quantum many-body magnetic exciton in doped van der Waals antiferromagnet (Ni,Cd)PS3

    Full text link
    The unique discovery of magnetic exciton in van der Waals antiferromagnet NiPS3 arises between two quantum many-body states of a Zhang-Rice singlet excited state and a Zhang-Rice triplet ground state. Simultaneously, the spectral width of photoluminescence originating from this exciton is exceedingly narrow as 0.4 meV. These extraordinary properties, including the extreme coherence of the magnetic exciton in NiPS3, beg many questions. We studied doping effects using Ni1-xCdxPS3 using two experimental techniques and theoretical studies. Our experimental results show that the magnetic exciton is drastically suppressed upon a few % Cd doping. All these happen while the width of the exciton only gradually increases, and the antiferromagnetic ground state is robust. These results highlight the lattice uniformity's hidden importance as a prerequisite for coherent magnetic exciton. Finally, an exciting scenario emerges: the broken charge transfer forbids the otherwise uniform formation of the coherent magnetic exciton in (Ni,Cd)PS3.Comment: 40 pages, 4 main figures, 13 supporting figures, accepted by Nano Letter

    Dynamic Skinning for Popping Dance

    No full text
    Abstract. This paper presents an efficient technique to enhance the realism of character animation by adding muscle dynamics. Focusing on the isometric contraction of muscles, the proposed algorithm takes normal mesh and clenched mesh, and uses the disparity between them to simulate the skin vibration. The skin simulation algorithm is integrated with an example-based skinning, and shows real-time performance. The proposed approach proves to be useful for animating popping dance

    Real-Time Approximation of a Normal Distribution Function for Normal-Mapped Surfaces

    No full text

    Unravelling the Influence of Buddhist Liberal Arts Education on College Studentsā€™ Self-Reflection

    No full text
    The purpose of this paper is to investigate the measurable impact of Buddhist liberal arts courses on college studentsā€™ ability to engage in self-reflection. This study uses the data gathered to establish, through statistical analysis, any correlations between two variablesā€”Buddhist liberal arts as courses as the independent variable and self-reflection intelligence as the continuous dependent variable. First, the following results of the study show that the mean of the four self-reflection sub-categories for the students who found that the courses were helpful was higher than that of the students who found that they were not helpful: self-awareness (4.10 Ā± 0.49 > 3.90 Ā± 0.87), self-design (3.84 Ā± 0.66 > 3.40 Ā± 0.97), self-regulation (4.01 Ā± 0.04 > 3.48 Ā± 0.18), and self-examination (4.21 Ā± 0.03 > 3.94 Ā± 0.15), respectively. Second, the mean of the four self-reflection sub-categories for students who experienced a positive change of their perception in the courses was higher than that of students who experienced a negative change, as follows: self-awareness (4.08 Ā± 0.50 > 3.75 Ā± 0.82), self-design (3.84 Ā± 0.68 > 3.51 Ā± 0.93), self-regulation (4.00 Ā± 0.59 > 3.56 Ā± 0.67), and self-examination (4.17 Ā± 0.49 > 4.04 Ā± 0.73), respectively. This study illuminates the role of Buddhist-related liberal arts courses in higher education, specifically in fostering studentsā€™ self-reflection skills. It offers valuable insights into educational practices aimed at enhancing self-reflection levels

    Effects of Anodizing Conditions on Thermal Properties of Al 20XX Alloys for Aircraft

    No full text
    Anodizing was applied to improve the heat dissipation performance of aluminum (Al) alloys, by forming an oxide layer, such that they could be employed in aerospace applications. The methods employed were hard sulfuric acid (high hardness), soft sulfuric acid (low hardness), boric-sulfuric mixed acid, tin-sulfuric mixed acid, and chromic acid solutions. Each process was completed under optimized conditions. The surface morphology was observed using field emission scanning electron microscopy (FE-SEM) and a digital camera. For the determination of thermal performance, Fourier transform infrared spectroscopy (FT-IR) was used to measure the emissivity at 50 Ā°C, and laser flash analysis (LFA) was utilized to analyze the thermal diffusivity at room temperature to 300 Ā°C. The radiative property of metals is often ignored because of their low emissivity, however, in this research, the emissivity of the metal oxides was found to be higher than that of bare metal series. This study improved the heat dissipation properties by oxidization of Al via the anodizing process

    Effects of Anodizing Conditions on Thermal Properties of Al 20XX Alloys for Aircraft

    No full text
    Anodizing was applied to improve the heat dissipation performance of aluminum (Al) alloys, by forming an oxide layer, such that they could be employed in aerospace applications. The methods employed were hard sulfuric acid (high hardness), soft sulfuric acid (low hardness), boric-sulfuric mixed acid, tin-sulfuric mixed acid, and chromic acid solutions. Each process was completed under optimized conditions. The surface morphology was observed using field emission scanning electron microscopy (FE-SEM) and a digital camera. For the determination of thermal performance, Fourier transform infrared spectroscopy (FT-IR) was used to measure the emissivity at 50 Ā°C, and laser flash analysis (LFA) was utilized to analyze the thermal diffusivity at room temperature to 300 Ā°C. The radiative property of metals is often ignored because of their low emissivity, however, in this research, the emissivity of the metal oxides was found to be higher than that of bare metal series. This study improved the heat dissipation properties by oxidization of Al via the anodizing process

    Development of flexible PLGA filament for FDM based 3D bio-printing

    No full text
    corecore