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Flexible Event Camera Calibration With Blinking Binary Stripes 利用闪烁的二进制条纹灵活校准事件相机
IF 2.3 3区 工程技术
IEEE Photonics Technology Letters Pub Date : 2024-10-10 DOI: 10.1109/LPT.2024.3477614
Ami Zi;Siyuan Tan;Qiujie Wu;Xiangcheng Chen;Bolin Cai
{"title":"Flexible Event Camera Calibration With Blinking Binary Stripes","authors":"Ami Zi;Siyuan Tan;Qiujie Wu;Xiangcheng Chen;Bolin Cai","doi":"10.1109/LPT.2024.3477614","DOIUrl":"https://doi.org/10.1109/LPT.2024.3477614","url":null,"abstract":"Event cameras report per-pixel brightness changes as a stream of asynchronous events, making them insensitive to the spatial distribution of feature points. Thus, traditional calibration methods, such as checkerboard and circle patterns, are inadequate for precise event camera calibration. Here, we propose an accurate calibration method based on blinking binary stripes to address this limitation. Two binary stripes, which are orthogonal, are displayed on a screen and blink at a specific frequency. The triggered data streams are converted into frames, which are analyzed using the Fourier technique. Thus, the feature points are located from the phase domain, which differs from conventional methods. The superior performance of the proposed method is verified in calibration experiments.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142451006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
IEEE Photonics Technology Letters publication information IEEE Photonics Technology Letters 出版信息
IF 2.3 3区 工程技术
IEEE Photonics Technology Letters Pub Date : 2024-10-09 DOI: 10.1109/LPT.2024.3461929
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引用次数: 0
IEEE Photonics Technology Letters Information for Authors IEEE Photonics Technology Letters 为作者提供的信息
IF 2.3 3区 工程技术
IEEE Photonics Technology Letters Pub Date : 2024-10-09 DOI: 10.1109/LPT.2024.3430631
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引用次数: 0
IEEE Photonics Technology Letters Information for Authors IEEE Photonics Technology Letters 为作者提供的信息
IF 2.3 3区 工程技术
IEEE Photonics Technology Letters Pub Date : 2024-10-09 DOI: 10.1109/LPT.2024.3461931
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引用次数: 0
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IF 2.3 3区 工程技术
IEEE Photonics Technology Letters Pub Date : 2024-10-09 DOI: 10.1109/LPT.2024.3461935
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引用次数: 0
IEEE Photonics Technology Letters publication information IEEE Photonics Technology Letters 出版信息
IF 2.3 3区 工程技术
IEEE Photonics Technology Letters Pub Date : 2024-10-09 DOI: 10.1109/LPT.2024.3440701
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引用次数: 0
100G Self-Coherent PON Based on Pre-Amplified Stokes Vector Direct Detection 基于预放大斯托克斯矢量直接检测的 100G 自相干 PON
IF 2.3 3区 工程技术
IEEE Photonics Technology Letters Pub Date : 2024-10-09 DOI: 10.1109/LPT.2024.3470590
Yuhao Fang;Haojie Zhu;Puzhen Yuan;Honglin Ji;William Shieh
{"title":"100G Self-Coherent PON Based on Pre-Amplified Stokes Vector Direct Detection","authors":"Yuhao Fang;Haojie Zhu;Puzhen Yuan;Honglin Ji;William Shieh","doi":"10.1109/LPT.2024.3470590","DOIUrl":"https://doi.org/10.1109/LPT.2024.3470590","url":null,"abstract":"In this letter, for the first time, a novel 100G pre-amplified self-coherent passive optical network (SC-PON) architecture is proposed and experimentally verified. To mitigate the reduction in receiver sensitivity resulting from co-transmitted carriers in self-coherent systems, a semiconductor optical amplifier (SOA) was deployed for pre-amplification with a noise figure of 7.5dB and a small-signal gain of 30dB. As a proof-of-concept, a system experiment of pre-amplified 25-GBaud 16-QAM SC-PON is demonstrated in the downstream, achieving a data rate of 100 Gb/s/\u0000<inline-formula> <tex-math>$lambda $ </tex-math></inline-formula>\u0000 over 20-km single-mode fiber (SMF) with a receiver sensitivity of -22dBm. We achieve a power budget beyond 33.6 dB under the 15% SD-FEC threshold of \u0000<inline-formula> <tex-math>$2times 10 ^{-2}$ </tex-math></inline-formula>\u0000, surpassing the power budget specified by ITU-T class N1 and IEEE class PR(X). The results indicate that the proposed SC-PON has the potential applicability for next-generation beyond 100G access systems.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142434558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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IF 2.3 3区 工程技术
IEEE Photonics Technology Letters Pub Date : 2024-10-09 DOI: 10.1109/LPT.2024.3455215
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引用次数: 0
Demonstration of Reservoir Computing Using Optoelectronic Oscillators With Direct Laser Modulation 使用直接激光调制光电振荡器的水库计算演示
IF 2.3 3区 工程技术
IEEE Photonics Technology Letters Pub Date : 2024-10-09 DOI: 10.1109/LPT.2024.3477352
Benjamin H. Klimko;Yanne K. Chembo
{"title":"Demonstration of Reservoir Computing Using Optoelectronic Oscillators With Direct Laser Modulation","authors":"Benjamin H. Klimko;Yanne K. Chembo","doi":"10.1109/LPT.2024.3477352","DOIUrl":"https://doi.org/10.1109/LPT.2024.3477352","url":null,"abstract":"We demonstrate the first experimental investigation on the performance of simplified optoelectronic oscillator (OEO) reservoir computers (RCs) operating on the standard Santa Fe task, comparing our results against numerical simulations. “Simplifying” the OEO by removing the Mach-Zehnder modulator (MZM) and directly modulating the laser diode with the injected signal is an important step towards operationalizing OEO-based reservoir computing (OEO-RC), as this helps pave the way to chip-scale optical reservoir computers where all the components of the reservoir layer can be included in a single fabricated photonic circuit. Our results show that a simplified OEO-RC can meet or exceed the performance of more computationally complex OEO-RC and similar delayed all-photonic RC on benchmark tests, likely indicating suitability for the architecture to process real-world, complex data.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142450894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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IF 2.3 3区 工程技术
IEEE Photonics Technology Letters Pub Date : 2024-10-09 DOI: 10.1109/LPT.2024.3440695
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引用次数: 0
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