{"title":"具有精确控制的对数响应的宽动态范围积分像素","authors":"Hsiu-Yu Cheng, Steve Collins","doi":"10.1109/ICSENST.2008.4757075","DOIUrl":null,"url":null,"abstract":"A CMOS image sensor pixel is described that combines the sensitivity and speed of response at low light levels of a linear integrating pixel with the wide dynamic range of a logarithmic response. This is achieved by supplying an externally generated reference voltage to each pixel so that the effective integration time becomes a function of the photocurrent. In this paper the mathematical model of the pixel is extended to include non-ideal aspects of the pixels response so that the reference voltage can accommodate for these non-ideal aspects of the pixel so that the responsivity of the pixel can be accurately controlled.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"251 1","pages":"68-71"},"PeriodicalIF":0.0000,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":"{\"title\":\"A wide dynamic range integrating pixel with an accurately controlled logarithmic response\",\"authors\":\"Hsiu-Yu Cheng, Steve Collins\",\"doi\":\"10.1109/ICSENST.2008.4757075\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A CMOS image sensor pixel is described that combines the sensitivity and speed of response at low light levels of a linear integrating pixel with the wide dynamic range of a logarithmic response. This is achieved by supplying an externally generated reference voltage to each pixel so that the effective integration time becomes a function of the photocurrent. In this paper the mathematical model of the pixel is extended to include non-ideal aspects of the pixels response so that the reference voltage can accommodate for these non-ideal aspects of the pixel so that the responsivity of the pixel can be accurately controlled.\",\"PeriodicalId\":6299,\"journal\":{\"name\":\"2008 3rd International Conference on Sensing Technology\",\"volume\":\"251 1\",\"pages\":\"68-71\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2008-11-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"5\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2008 3rd International Conference on Sensing Technology\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICSENST.2008.4757075\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2008 3rd International Conference on Sensing Technology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICSENST.2008.4757075","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A wide dynamic range integrating pixel with an accurately controlled logarithmic response
A CMOS image sensor pixel is described that combines the sensitivity and speed of response at low light levels of a linear integrating pixel with the wide dynamic range of a logarithmic response. This is achieved by supplying an externally generated reference voltage to each pixel so that the effective integration time becomes a function of the photocurrent. In this paper the mathematical model of the pixel is extended to include non-ideal aspects of the pixels response so that the reference voltage can accommodate for these non-ideal aspects of the pixel so that the responsivity of the pixel can be accurately controlled.
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