25/08/21Munyika yekufungidzira kwedhijitari, mashoma tekinoroji zvinhu zvinopesvedzera kunaka kwemufananidzo zvakanyanya serudzi rwevhavha yemagetsi mune sensor yako. Kunyangwe iwe uri kupfura maindasitiri ekumhanya-mhanya, kutora mafirimu anoteedzana, kana kutora zvisingaite zvemuchadenga, tekinoroji yekuvhara mukati meCMOS kamera yako inoita basa rakakosha mukuti mufananidzo wako wekupedzisira unobuda sei.
Mhando mbiri dzakakura dzeCMOS dzemagetsi zvivhariso, zvivharo zvepasi rose uye zvivhariso zvinotenderedza, zvinotora nzira dzakasiyana dzekufumura uye kuverenga kunze kwechiedza kubva kune sensor. Kunzwisisa misiyano yavo, masimba, uye kutengeserana kwakakosha kana iwe uchida kuenzanisa yako yekufungidzira system kune yako application.
Ichi chinyorwa chinotsanangura kuti zvivhariso zvemagetsi zveCMOS chii, mashandiro epasi rose uye anotenderedza mavhavha anoshanda, maitiro aanoita mumamiriro ezvinhu epasirese, uye kuti ungasarudza sei zvakakunakira.
Chii chinonzi CMOS Electronic Shutters?
A CMOS sensor ndiyo moyo weakawanda azvino makamera. Inoita basa rekushandura mwenje unouya kuita masaini emagetsi anogona kugadziriswa kuita mufananidzo. The "shutter" munaCMOS kameraharisi keteni remuchina-magadzirirwo mazhinji echizvino-zvino anotsamira pachivharo chemagetsi chinodzora kuti mapixel anotora chiedza sei uye riini.
Kusiyana nechivharo chemagetsi chinovharira chiedza, chivharo chemagetsi chinoshanda nekutanga uye kumisa kuyerera kwechaji mukati mepixel yega yega. Mukufungidzira kweCMOS, kune maviri ekutanga emagetsi shutter architecture: yepasirose shutter uye rolling shutter.
Nei musiyano uchikosha? Nekuti nzira yekuratidzira uye kuverenga inobata zvakananga:
● Kududzira zvinofambisa uye kukanganisa
● Mufananidzo unopinza
● Kunzwa kwakaderera-chiedza
● Frame rate uye latency
● Kukodzera kwese kwemhando dzakasiyana dzemafoto, mavhidhiyo, nemifananidzo yesainzi
Kunzwisisa Global Shutter
Kunobva: GMAX3405 Global Shutter Sensor
Iyo Global Shutter Inoshanda sei
CMOS Global shutter makamera anotanga uye kupedzisa kuratidzwa kwavo panguva imwe chete kune yese sensor. Izvi zvinowanikwa uchishandisa 5 kana kupfuura transistors papixel, uye 'storagenode' inobata machaji ephotoelectron panguva yekuverenga. Kutevedzana kweexposure ndiko kunotevera:
1. Tanga kuratidzwa panguva imwe chete mupixel yega yega nekubvisa machaji akawanikwa pasi.
2. Mirira nguva yakasarudzwa yekuratidzira.
3. Pakupera kwekuratidzwa, fambisa wawana machaji kunzvimbo yekuchengetedza mune yega pixel, uchipedza kuratidzwa kweiyo furemu.
4. Mutsara nemutsara, fambisa maerekitironi mupixel's readout capacitor, uye wodzorera voltage yaunganidzirwa kuchivakwa chekuverenga, zvichiguma neanalogue-to-digital converters (ADCs). Kuratidzwa kunotevera kunogona kazhinji kuitwa panguva imwe chete nedanho iri.
Zvakanakira zveGlobal Shutter
● No Motion Distortion - Zvidzidzo zvinofamba zvinochengetedza chimiro chavo uye geometry pasina skew kana kuzununguka kunogona kuitika nekutevedzana kuverenga.
● High-Speed Capture - Yakanakira kufamba kwechando muzviitiko zvinokurumidza kufamba, zvakadai semitambo, marobhoti, kana kugadzirisa kwehutano hwekugadzira.
● Low Latency - Yese data yemifananidzo inowanikwa kamwechete, ichigonesa kunyatsoenderana nezviitiko zvekunze, senge laser pulses kana strobe lights.
Kugumira kweGlobal Shutter
● Lower Light Sensitivity - Mamwe mapikisiki epasi rose anovhara dhizaini anozvipira kuunganidza chiedza kuti agone kutenderedza dunhu rinodiwa pakuratidzwa panguva imwe chete.
● Higher Cost & Complexity - Kugadzirwa kunonyanya kuoma, kazhinji kunoguma nemitengo yakakwirira kana ichienzaniswa neyakavharwa shutter.
● Inogona Kuwedzera Ruzha - Zvichienderana nekugadzirwa kwe sensor, mamwe emagetsi papixel anogona kutungamirira kune ruzha rushoma rwekuverenga.
Kunzwisisa Rolling Shutter
Iyo Rolling Shutter Inoshanda sei
Uchishandisa 4 chete transistors uye pasina nzvimbo yekuchengetera, iyi iri nyore fomu yeCMOS pixel dhizaini inotungamira kune yakaoma yemagetsi shutter oparesheni. Rolling shutter pixels inotanga uye kumisa kuratidzwa kwe sensor mutsara mumwe panguva, 'kukungurutsa' pasi sensor. Iyo inoteedzana yakatarisana (inoratidzwawo mumufananidzo) inoteverwa kune yega yega kuratidzwa:
Mufananidzo: Rolling shutter process ye 6x6 pixel kamera sensor
Iyo yekutanga furemu inotanga kubuda (yero) kumusoro kwe sensor, ichitsvaira ichidzika pasi pamwero wemutsara mumwechete panguva yemutsara. Kana kuratidzwa kwapera kumutsara wepamusoro, iyo kuverenga kunze (yepepuru) inoteverwa nekutanga kwekuratidzwa kunotevera (bhuruu) kutsvaira pasi sensor.
1. Tanga kuratidzwa kumutsara wepamusoro we sensor nekubvisa mari dzakawanikwa pasi.
2. Mushure mokunge 'nguva yemutsara' yapera, famba kumutsara wechipiri we sensor uye tanga kuonekwa, uchidzokorora pasi sensor.
3. Kana nguva yekuratidzira yakumbirwa yapera pamutsetse wepamusoro, gumisa kufumurwa nekutumira mari yawawana kuburikidza nekuverenga kwekuvaka. Nguva inotorwa kuita izvi ndiyo 'nguva yemutsara'.
4. Kana kuverenga kwapera kwemutsara, inenge yagadzirira kutanga kuratidzwa zvakare kubva paChikamu chekutanga, kunyangwe zvichireva kupindirana nemimwe mitsetse ichiita zvapfuura.
Zvakanakira Rolling Shutter
●Zvirinani Low-Light Performance- Iyo pixel dhizaini inogona kukoshesa kuunganidzwa kwemwenje, kuvandudza chiratidzo-kune-ruzha reshiyo mumamiriro erima.
●Higher Dynamic Range-Sequential readout dhizaini inogona kubata zvinopenya zvinopenya uye mimvuri yakasviba zvine hunyoro.
●More Affordable- Rolling shutter CMOS sensors akajairika uye anodhura-inoshanda kugadzira.
Kuganhurirwa kweRolling Shutter
●Motion Artifacts- Zvidzidzo zvinomhanya-mhanya zvinogona kuita kunge zvakatsveyama kana kubhenda, inozivikanwa se "rolling shutter effect."
●Jello Effect muVhidhiyo-Handheld footage ine vibration kana kukurumidza kupenya inogona kukonzera kuzunguzika mumufananidzo.
●Matambudziko Okuyananisa-Isina kunaka kune maapplication anoda chaiyo nguva nezviitiko zvekunze.
Global vs. Rolling Shutter: Side-by-Side Comparison
Heano maonero epamusoro-soro ekuti kutenderera uye zvivharo zvepasi rose zvinofananidzwa:
| Feature | Rolling Shutter | Global Shutter |
| Pixel Dhizaini | 4-transistor (4T), hapana nzvimbo yekuchengetedza | 5+ transistors, inosanganisira kuchengetedza node |
| Light Sensitivity | Yepamusoro yekuzadza chinhu, yakagadziridzwa nyore kuseri-yakavhenekerwa fomati → yepamusoro QE | Yakaderera yekuzadza chinhu, BSI yakanyanya kuoma |
| Noise Performance | Kazhinji dzika verenga ruzha | Inogona kuva neruzha rwakakwira zvishoma nekuda kwekuwedzera dunhu |
| Motion Distortion | Zvinogoneka (skew, wobble, jello effect) | Hapana - pixels dzese dzakafumurwa panguva imwe chete |
| Speed Potential | Inogona kupindirana kuratidzwa uye kuverenga mitsara yakawanda; kazhinji nekukurumidza mune mamwe magadzirirwo | Yakaganhurirwa ne-furemu yakazara kuverenga, kunyangwe kupatsanurwa kuverenga kunogona kubatsira |
| Mutengo | Mari yekugadzira yakaderera | Mutengo wekugadzira wakakwira |
| Best Use Cases | Low-light imaging, cinematography, general mafoto | High-speed inofamba kubata, ongororo yeindasitiri, chaiyo metrology |
Core Performance Misiyano
Rolling shutter pixels anowanzo shandisa 4-transistor (4T) dhizaini isina nzvimbo yekuchengetera, nepo zvivharo zvepasi rose zvinoda 5 kana kupfuura transistors papixel pamwe nekuwedzera dunhu kuchengetedza maphotoelectrons asati averenga.
●Zadza Factor & Sensitivity-Iyo yakapfava 4T dhizaini inobvumira yakakwira pixel kuzadza chinhu, zvichireva kuti yakawanda yepixel imwe neimwe nzvimbo yakatsaurirwa kuunganidzwa kwechiedza. Iyi dhizaini, yakasanganiswa neyekuti rolling shutter sensors inogona kuchinjika zviri nyore kune yakavhenekerwa kumashure fomati, kazhinji inoguma nepamusoro quantum kunyatsoshanda.
●Noise Performance-Mashoma ma transistors uye mashoma akaoma kutenderera kazhinji anoreva kutenderedza zvivhariso zvinoratidza ruzha rwekuverenga runyoro, zvichiita kuti dzikwane zvirinani kune yakaderera-mwenje maapplication.
●Speed Potential-Kuvhara zvivhariso zvinogona kukurumidza mune mamwe magadzirirwo nekuti anotendera kupindirana kuratidzwa uye kuverenga, kunyangwe izvi zvichinyanya kutsamira pane sensor dhizaini uye kuverenga zvemagetsi.
Mutengo & Kugadzira -Kureruka kwekutenderedza shutter pixels kunowanzo shandura kudzikisa mitengo yekugadzira kana ichienzaniswa nemavhavha epasi rose.
Mafungiro Epamusoro uye Maitiro
Pseudo-Global Shutter
Mumamiriro ezvinhu apo iwe unokwanisa kunyatso kudzora kana mwenje wasvika sensor-sekushandisa LED kana laser mwenje sosi inokonzereswa nehardware-unogona kuwana "sepasi-se" mhedzisiro neinotenderedza shutter. Iyi pseudo-global shutter nzira inowiriranisa kuvhenekerwa nehwindo rekuratidzwa, kudzikisa mafambiro ekugadzira pasina kuda yechokwadi yepasi rose shutter dhizaini.
Mufananidzo Kupindirana
Rolling shutter sensors inogona kutanga kufumura furemu inotevera isati yazvino kuverenga kuverenga kwapera. Izvi zvinopindirana zvinovandudza basa uye zvinobatsira kune-high-speed application apo kutora huwandu hwehuwandu hwemafuremu pasekondi kwakakosha, asi zvinogona kukanganisa kuedza kusingatarisire nguva.
Multiple Row Readout
Mazhinji makamera anomhanya-mhanya eCMOS anogona kuverenga anopfuura mutsara mumwe wemapikiseli panguva. Mune mamwe mamodhi, mitsetse inoverengwa iri miviri; mumagadzirirwo epamberi, anosvika mitsara mina inogona kuverengwa panguva imwe chete, zvinobudirira kuderedza yakazara furemu yekuverenga nguva.
Split Sensor Architecture
Ese ari maviri anotenderedza uye epasi rose mavhavha anogona kushandisa kupatsanurwa sensor marongero, uko iyo sensor yemufananidzo inokamurwa vertically kuita hafu mbiri, imwe neimwe iine mutsara wayo weADCs.
● Muchivharo chezvivharo zvinopatsanura, kuverenga kunowanzotanga kubva pakati uye kubuda kunze kune zvese kumusoro nepasi, zvichiwedzera kuderedza kunonoka.
● Mukugadzira zvivharo zvepasi rose, kupatsanurwa kuverenga kunogona kuvandudza mitengo yefuremu pasina kushandura kuratidzwa panguva imwe chete.
Maitiro eKusarudza Yechikumbiro Chako: Rolling kana Global Shutter?
Iyo shutter yepasi rose inogona kubatsira maapplication
● Inoda nguva yakanyatsojeka yezviitiko
● Inoda nguva pfupi zvikuru yekuratidzwa
● Inoda kunonoka kwesub-millisecond isati yatanga kutora kuti iwirirane nechiitiko.
● Bata chikero chikuru chekufamba kana simba pane imwe nguva yakafanana kana kukurumidza kune chivharo chinomonereka
● Inoda kuwanikwa panguva imwe chete pa sensor, asi haikwanise kudzora magetsi kuti ishandise pseudo-global shutter munzvimbo yakakura.
Iyo rolling shutter inogona kubatsira maapplication
● Inonetsa yakaderera-mwenje maapplication: Iyo yekuwedzera quantum kunyatsoshanda uye yakaderera ruzha rwekutenderedza shutter kamera kazhinji inotungamira kune yakavandudzwa SNR.
● High-speed applications apo chaiyo simtaneti mhiri kwesenso haina kukosha, kana kunonoka kudiki kana zvichienzaniswa nekuyedza nguva.
● Mamwe maapplication akajairika apo kugadzira kuve nyore uye mutengo wakaderera wekurokota shutter kamera zvinobatsira
Mafungiro Akajairika
1. "Rolling shutter inogara yakaipa."
Hazvisi chokwadi-mavhavha anotenderedza akanakira akawanda makesi ekushandisa uye anowanzo kupfuura epasi rose zvivharo muchiedza chakaderera uye chine simba renji.
2. "Global shutter inogara iri nani."
Nepo kukanganisa-kusina kubatwa kuri mukana, kutengeserana mumutengo, ruzha, uye kunzwa kunogona kudarika mabhenefiti ekufungidzira kunononoka.
3. "Iwe haugone kupfura vhidhiyo ine rolling shutter."
Makamera akawanda epamusoro-soro emufirimu anoshandisa zvivharo zvinoputika zvakanaka; nzira dzekupfura dzakangwarira dzinogona kuderedza zvigadzirwa.
4. "Zvivharo zvepasi rose zvinobvisa blur yese."
Ivo vanodzivirira kukanganiswa kwejometri, asi kufamba kwakasviba kubva kunguva refu yekuratidzwa kunogona kuitika.
Mhedziso
Sarudzo pakati pepasirese uye inotenderedza shutter tekinoroji muCMOS kamera inodzika kusvika pachiyero pakati pemafambiro ekubata, mwenje senitivity, mutengo, uye zvaunoda chaizvo zvekushandisa.
● Kana iwe uchida kukanganisa-isina kubatwa kwezviitiko zvinokurumidza kufamba, shutter yepasi rose ndiyo sarudzo yakajeka.
● Kana iwe ukakoshesa kushanda kwechiedza chakaderera, dynamic range, uye bhajeti, rolling shutter inowanzopa migumisiro yakanakisisa.
Kunzwisisa misiyano iyi kunoita kuti ugone kusarudza chishandiso chakakodzera — chingave chekufungidzira kwesainzi, kuongorora maindasitiri, kana kugadzira kugadzira.
FAQs
Ndeipi mhando yevhavha iri nani yekutora mifananidzo yemuchadenga kana mepu yedrone?
Pamepu, kuongorora, uye kuongorora uko kurongeka kwejometri kwakakosha, chivharo chepasi rose chinosarudzwa kudzivirira kukanganisa. Nekudaro, kune yekugadzira dhidhiyo yemuchadenga, inotenderedza shutter inogona kuramba ichiunza yakanakisa mibairo kana mafambiro akadzorwa.
Kusarudzwa kwevhavha kunokanganisa sei mifananidzo yakaderera?
Rolling shutters kazhinji ane mukana mukuita kwakaderera-mwenje nekuti magadzirirwo awo epixel anogona kukoshesa kuunganidza kwechiedza. Zvivhariso zvepasi rose zvinogona kuda kutenderera kwakaomarara izvo zvinogona kuderedza kushomeka, kunyangwe zvigadziriso zvemazuva ano zviri kuvhara gap iri.
Inobata sei shutter type akamera yesainzi?
Mukufungidzira kwesainzi kwechimbichimbi—kwakadai sokuronda twunhu, kushanduka kwemasero, kana kuti ballistics—chivharo chepasi rose chinowanzokosha kudzivirira kukanganiswa kwekufamba. Asi kune yakaderera-mwenje fluorescence microscopy, ansCMOS kameraine rolling shutter inogona kusarudzwa kuti iwedzere kunzwisiswa uye dynamic range.
Ndeipi iri nani yekuongorora maindasitiri?
Mumabasa mazhinji ekuongorora maindasitiri — kunyanya ayo anosanganisira kufambisa mabhandi ekutakurisa, marobhoti, kana kuona muchina — chivharo chepasi rose ndiyo sarudzo yakachengeteka yekuona kuyerwa chaiko pasina kufambisa-induced geometric kukanganisa.
Tucsen Photonics Co., Ltd. Kodzero dzese dzakachengetwa. Paunenge uchitaura, ndapota bvuma kwakabva:www.tucsen.com
