{"title":"多模动态视觉传感器的单斜率PWM成像方法","authors":"Qijuan Wu, Mingyu Wang, Jingjing Liu, Wenhong Li","doi":"10.1109/ASICON52560.2021.9620421","DOIUrl":null,"url":null,"abstract":"To break through the limitation of dynamic vision sensor (DVS) in object recognition and classification, a pulse width modulation (PWM) imaging method in a multi-mode DVS which integrates temporal contrast detection with brightness measurement is proposed. The improved logarithmic photoreceptor with pulse coding strategy ensures a theoretical intra-scene dynamic range of 130 dB. The 128×128 vision sensor has been implemented in a 0.18 µm 2P4M CMOS technology. The pixel pitch is 16.5 µm and the chip occupies a silicon area of 3.9×3.5 mm2. The log sensitivity of our pixel has been verified to be164 mV/Dec in chip testing.","PeriodicalId":233584,"journal":{"name":"2021 IEEE 14th International Conference on ASIC (ASICON)","volume":"91 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2021-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A Single-Slope PWM Imaging Method for Multi-Mode Dynamic Vision Sensor\",\"authors\":\"Qijuan Wu, Mingyu Wang, Jingjing Liu, Wenhong Li\",\"doi\":\"10.1109/ASICON52560.2021.9620421\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"To break through the limitation of dynamic vision sensor (DVS) in object recognition and classification, a pulse width modulation (PWM) imaging method in a multi-mode DVS which integrates temporal contrast detection with brightness measurement is proposed. The improved logarithmic photoreceptor with pulse coding strategy ensures a theoretical intra-scene dynamic range of 130 dB. The 128×128 vision sensor has been implemented in a 0.18 µm 2P4M CMOS technology. The pixel pitch is 16.5 µm and the chip occupies a silicon area of 3.9×3.5 mm2. The log sensitivity of our pixel has been verified to be164 mV/Dec in chip testing.\",\"PeriodicalId\":233584,\"journal\":{\"name\":\"2021 IEEE 14th International Conference on ASIC (ASICON)\",\"volume\":\"91 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2021-10-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2021 IEEE 14th International Conference on ASIC (ASICON)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ASICON52560.2021.9620421\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2021 IEEE 14th International Conference on ASIC (ASICON)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ASICON52560.2021.9620421","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A Single-Slope PWM Imaging Method for Multi-Mode Dynamic Vision Sensor
To break through the limitation of dynamic vision sensor (DVS) in object recognition and classification, a pulse width modulation (PWM) imaging method in a multi-mode DVS which integrates temporal contrast detection with brightness measurement is proposed. The improved logarithmic photoreceptor with pulse coding strategy ensures a theoretical intra-scene dynamic range of 130 dB. The 128×128 vision sensor has been implemented in a 0.18 µm 2P4M CMOS technology. The pixel pitch is 16.5 µm and the chip occupies a silicon area of 3.9×3.5 mm2. The log sensitivity of our pixel has been verified to be164 mV/Dec in chip testing.
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