国际光学工程学会
期刊
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图书
作者:Yang Liu , Congqing Wang
来源:[J].Optical Engineering(IF 0.88), 2018, Vol.57 (7), pp.073104-073104SPIE
摘要:A visual localization approach for unmanned aerial vehicles (UAVs) based on the hybrid real-time stereo visual odometry (VO) is presented. The hybrid VO initializes the semidirect visual odometry (SVO) with depth obtained from the stereo camera, which runs with the monocular sche...
作者:... Hsing-Yu Chen , Chien-Hung Yeh , Yang Liu
来源:[J].Optical Engineering(IF 0.88), 2017, Vol.56 (1), pp.016115-016115SPIE
摘要:White-light phosphor-based light-emitting diode (LED) can be used to provide lighting and visible light communication (VLC) simultaneously. However, the long relaxation time of phosphor can reduce the modulation bandwidth and limit the VLC data rate. Recent VLC works focus on imp...
作者:... Paul Tu , Yang Liu , Jian-xiong Chen
来源:[J].Journal of Micro/Nanolithography, MEMS, and MOEMS(IF 1.148), 2017, Vol.16 (2), pp.025003-025003SPIE
摘要:When using a femtosecond laser to machine a single-crystal silicon wafer, it is accompanied with a diffraction spot of plasma. The existing literature reports that the brightness of the image of plasma can be used as an indicator to online measure the depth of the machined g...
作者:Yang Liu , Zhitao Xiao ...
来源:[J].Journal of Electronic Imaging(IF 1.061), 2017, Vol.26 (3), pp.033020-033020SPIE
摘要:The majority of pedestrian detection approaches use multiscale detection and the sliding window search scheme with high computing complexity. We present a fast pedestrian detection method using the deformable part model and pyramid layer location (PLL). First, the object proposal...
作者:Yang Liu , Guojun Liu
来源:[J].Journal of Electronic Imaging(IF 1.061), 2018, Vol.27 (1), pp.013018-013018SPIE
摘要:We propose a method to generate figure-ground segmentation by incorporating shape priors into the graph-cuts algorithm. Given an image, we first obtain a linear representation of an image and then apply directional chamfer matching to generate class-independent, nonparametric sha...
作者:Yang Liu , Guojun Liu ...
来源:[J].Journal of Electronic Imaging(IF 1.061), 2018, Vol.27 (3), pp.033009-033009SPIE
摘要:As a representative deep learning model, convolutional neural networks (CNNs) have accomplished great achievements in image classification and object detection. However, CNNs require the resizing of the input images to a fixed size, which may affect the representations of objects...
作者:... Shaojuan Zhang , Yang Liu , Mingfeng Bai
来源:[J].Journal of Biomedical Optics(IF 2.881), 2018, Vol.23 (10), pp.108001-108001SPIE
摘要:Cannabinoids are emerging as promising antitumor drugs. However, complete tumor eradication solely by cannabinoid therapy remains challenging. In this study, we developed a far-red light activatable cannabinoid prodrug, which allows for tumor-specific and combinatory cannabinoid ...
作者:Yang Liu , Guojun Liu ...
来源:[J].Journal of Electronic Imaging(IF 1.061), 2018, Vol.27 (5), pp.053025-053025SPIE
摘要:Latent Dirichlet allocation is the prevalent topic model and performs well for image classification. However, it ignores visual word spatial information, which affects topic assignment accuracy. This paper proposes an effective topic model framework based on spatial pyramids incl...
作者:Yang Liu , Hung-Yu Chen ...
来源:[J].Optical Engineering(IF 0.88), 2016, Vol.55 (1), pp.010501-010501SPIE
摘要:Traditional visible light communication (VLC) uses positive-intrinsic-negative photodiode (PD) or avalanche PD as the optical receivers (Rx). We demonstrate using a solar cell as the VLC Rx. The solar cell is flexible and low cost and converts the optical signal into an elec...
作者:Yang Liu
来源:[J].Optical Engineering(IF 0.88), 2016, Vol.55 (1), pp.016103-016103SPIE
摘要:Optical wireless communication (OWC) using visible lights, also known as visible light communication (VLC), has attracted significant attention recently. As the traditional OWC and VLC receivers (Rxs) are based on PIN photo-diode or avalanche photo-diode, deploying the complement...

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