tag:blogger.com,1999:blog-19092890.post7829583328270504659..comments2024-03-28T17:41:43.970+02:00Comments on Image Sensors World: Sony Announces High Sensitivity Sensor for Automotive ApplicationsVladimir Koifmanhttp://www.blogger.com/profile/01800020176563544699noreply@blogger.comBlogger4125tag:blogger.com,1999:blog-19092890.post-32736902614085873692015-10-13T19:00:28.375+03:002015-10-13T19:00:28.375+03:00Sorry, I'm just beginning in this world : what...Sorry, I'm just beginning in this world : what is the relation between ISO and gain or e sensibility / noise ? gILLeShttps://www.blogger.com/profile/18174656024523919793noreply@blogger.comtag:blogger.com,1999:blog-19092890.post-61739757411041273612015-03-08T02:34:18.978+02:002015-03-08T02:34:18.978+02:0072db gain = aprox. iso 400,00072db gain = aprox. iso 400,000Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-19092890.post-15426582520513929402014-10-17T15:25:22.989+03:002014-10-17T15:25:22.989+03:00Is someone else than me out there that asks for th...Is someone else than me out there that asks for the opposite - lower overall "gain"? <br /><br />In our machine vision environment we would rather need attenuation than gain (ok - we could use grey filters but - just to post a question...)<br />we have both enough light (the desired light has to be bright compared to environment light) and the demand for a exposure time of at least a few (5-10) ms (e.g. to "filter" mechanical vibrations).<br />so our image sensors usualy are configured at the lower limit of the possible gain range - using no "amplification" by ADC but trying to use as much as possible of the linear range of the pixel.<br /><br />if I compare the values in the datasheet of one of the sensors we use (CMV4000), I'd say that for the kind of machine vision applications we use the ideal would be <1-2V/lux.s - so less than 1/4 of what it is now... (ideal would be about 4000x4000 3µm global shutter pixels - but thats another story ;-)<br /><br />Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-19092890.post-30731005706471397402014-10-17T10:33:03.176+03:002014-10-17T10:33:03.176+03:0072dB gain = 4000. It's crzay. But with such ga...72dB gain = 4000. It's crzay. But with such gain, the sensor will saturate rapidly, since 0.25mV will become 1V which is almost the full ADC range. Anonymousnoreply@blogger.com