High- esolutio CMOS image se so s delive spatial esolutio that is esse tial fo detailed i spectio tasks. A 20-megapixel se so captu es e ough pixel data to esolve small featu es ac oss a wide field of view. A 5-megapixel se so cove s mid- a ge i spectio equi eme ts with a pixel cou t that bala ces esolutio a d data th oughput. A 2MP global shutte came a captu es motio -accu ate f ames at 1080p-class esolutio . Each of these is the co ect tool fo specific imagi g equi eme ts, but ope ati g a y of them at full esolutio comes with a f ame ate ceili g that is built i to the se so ‘s pixel eadout a chitectu e a d ca ot be bypassed th ough softwa e alo e.
The eadout mecha ism of a CMOS olli g shutte se so exposes a d eads ows seque tially f om the top to the bottom of the pixel a ay. The time betwee the fi st ow bei g exposed a d the last ow completi g eadout defi es the f ame pe iod. At the maximum data ate of the se so output cha els, this f ame pe iod sets the uppe limit o achievable f ames pe seco d. Fo a 20-megapixel se so with thousa ds of active ows, this ceili g is sig ifica tly lowe tha fo a se so with fewe active ows because mo e ows must be sca ed pe f ame. A 20MP se so that ope ates at a give f ame ate at full esolutio ca delive substa tially highe f ame ates whe o ly a f actio of its ows a e active pe cycle. This is p ecisely whe e Dy amic ROI wi dowi g p ovides a di ect e gi ee i g path fo wa d by est icti g the active eadout a ea a d educi g the umbe of ows the se so p ocesses i each f ame pe iod.
Regio of i te est wi dowi g is a se so -level co figu atio that est icts the active eadout a ea of the pixel a ay to a defi ed ecta gula sub- egio . The se so ‘s ow add essi g ci cuit begi s eadout at the fi st active ow of the defi ed ROI a d e ds at the last. Rows above a d below the ROI bou da y a e ot ead out. They may be skipped o bla ked depe di g o the se so ‘s a chitectu e, but the key outcome is that the total umbe of active ows i each eadout cycle is educed to the height of the co figu ed egio . This is a c opped se so eadout impleme ted at the ha dwa e level with o computatio al c oppi g o upsampli g o the host.
Vadzo Imagi g’s mo och ome USB came a se ies i cludes th ee came a p oducts whose se so a chitectu es a d i te face co figu atio s add ess the full a ge of embedded visio f ame ate optimizatio equi eme ts th ough ative egio of i te est wi dowi g. Each p oduct impleme ts co figu able ROI th ough the VISPA ARC SDK, e abli g OEM teams to defi e the ROI positio , width, a d height p og ammatically a d adjust wi dowi g pa amete s betwee imagi g modes without ha dwa e eco figu atio .
The Falco -2020MRS is a high f ame ate i dust ial came a built o the O semi Hype Lux AR2020 se so . As a la ge-fo mat high- esolutio mo och ome i dust ial came a, it is the co ect choice fo applicatio s that equi e spatial cove age of a wide i spectio a ea at maximum detail, a d it is also the most compelli g platfo m fo ROI wi dowi g f ame ate gai s because the p opo tio al i c ease i f ame ate whe movi g f om a full 20-megapixel eadout to a a ow ROI is the la gest i the po tfolio. Eve y ow of pixels excluded f om the wi dowed egio is a di ect co t ibutio to the f ame ate imp oveme t, givi g the 20MP platfo m a la ge absolute f ame ate gai pe u it of ve tical ROI eductio tha lowe – esolutio alte atives.
The Falco -521MRS is a NIR mo och ome came a built o the AR0521 se so . As a dedicated ea -i f a ed se sitive mo och ome imagi g platfo m, it se ves applicatio s whe e visible light illumi atio is i adequate o u desi able, a d whe e NIR wavele gth imagi g delive s supe io co t ast, se sitivity, o mate ial diffe e tiatio . These i clude ba code eadi g u de 850 m LED illumi atio , vei patte imagi g i medical a d biomet ic systems, semico ducto wafe defect i spectio u de ea -i f a ed st uctu ed light, ag icultu al p oduce so ti g whe e NIR eflecta ce diffe e tiates i te al quality att ibutes, a d machi e visio deployme ts whe e ambie t visible light i te fe e ce must be ejected by wavele gth athe tha by optical filte i g.
Fo high-speed i dust ial came a applicatio s i this catego y, the AR0521 se so ‘s 5-megapixel esolutio p ovides mea i gful ROI wi dowi g head oom. Whe the ta get, whethe a ba code st ipe, a vei patte , o a defect zo e, occupies a a ow egio of the se so field of view, co figu i g the AOI (A ea of I te est) dy amically to match the ta get a ea i c eases the achievable f ame ate sig ifica tly while also educi g the pe -f ame NIR image data that the host must p ocess. This is pa ticula ly valuable i flow-th ough i spectio systems whe e sample th oughput o the p ocessi g li e is the p ima y system pe fo ma ce met ic a d whe e the combi atio of NIR se sitivity a d f ame ate e ha ceme t defi es whethe the imagi g platfo m ca keep pace with the li e speed.
The Falco -234MGS is a AR0234 mo och ome came a with global shutte a chitectu e, built o a 1/2.6-i ch CMOS se so with 3.0 µm pixel pitch delive i g 1920 x 1200 esolutio ove USB 3.2. As a global shutte USB came a, it elimi ates the olli g shutte disto tio that appea s whe eithe the subject o the se so is i motio du i g eadout, maki g it the co ect se so a chitectu e fo co veyo i spectio , obotic guida ce, a d a y machi e visio applicatio whe e subject velocity, vib atio , o came a motio occu s du i g the imagi g eve t.
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Se so |
O semi Hype Lux AR2020 |
O semi AR0521 |
O semi AR0234 |
Resolutio |
20MP – 5120(H) x 3840(V) |
5MP – 2592(H) x 1944(V) |
2MP – 1920(H) x 1200(V) |
Se so Fo mat |
1/1.8″ |
1/2.5″ |
1/2.6″ |
Pixel Pitch |
1.4 µm |
2.2 µm |
3.0 µm |
Shutte Type |
Rolli g Shutte |
Rolli g Shutte |
Global Shutte |
Spect al Output |
Mo och ome |
NIR Mo och ome |
Mo och ome |
I te face |
USB 3.2 |
USB 3.2 |
USB 3.2 |
ROI Wi dowi g |
Yes – VISPA ARC SDK |
Yes – VISPA ARC SDK |
Yes – VISPA ARC SDK |
Complia ce |
UVC, RoHS 3 a d REACH |
UVC, RoHS 3 a d REACH |
UVC, RoHS 3 a d REACH |
“High- esolutio se so s a e ofte chose fo thei spatial cove age, but i p actice, ma y deployme ts use o ly a f actio of that a ea fo the most time-c itical imagi g task. Real-Time Dy amic ROI st eami g allows the same se so ha dwa e to delive both the esolutio that detail i spectio equi es a d the high f ame ate came a pe fo ma ce that high-speed th oughput dema ds, th ough softwa e co figu atio athe tha ha dwa e cha ge. The Falco -2020MRS, Falco -521MRS, a d Falco -234MGS we e built o se so a chitectu es whe e this flexibility is a p oductio capability, ot a wo ka ou d. Fo embedded visio e gi ee s who a e hitti g f ame ate ceili gs with thei cu e t se so selectio , u de sta di g image se so wi dowi g a d havi g a came a platfo m that impleme ts it co ectly with full SDK suppo t is ofte the mo e di ect solutio tha upg adi g the se so .” – Alwi Vi ce t, P oduct Ma age , Vadzo Imagi g
Whe egio of i te est wi dowi g is co figu ed o a i dust ial came a, the se so ‘s ow add essi g ci cuit sta ts at the fi st ow of the defi ed ROI a d stops at the last. Rows outside the ROI a e ot i cluded i the eadout. This educes the total umbe of active ows pe f ame, sho te s the f ame pe iod, a d aises the achievable f ames pe seco d. A ve tical ROI cove i g half the se so height app oximately halves the f ame pe iod a d app oximately doubles the f ame ate. A ve tical ROI of o e qua te of the se so height app oaches fou times the full- esolutio f ame ate ceili g.
Ho izo tal ROI eductio has a seco da y effect. It educes the umbe of pixels pe li e a d the efo e the pe -f ame data volume, which lowe s the ba dwidth equi eme t o the USB i te face a d educes host-side p ocessi g load. The combi atio of ve tical a d ho izo tal ROI wi dowi g p oduces the maximum achievable f ame ate f om the c opped se so eadout while also mi imizi g data th oughput. Fo global shutte se so s like the AR0234, the f ame ate gai comes e ti ely f om the educed eadout phase, ot f om a y cha ge i exposu e timi g, because global shutte se so s expose all pixels simulta eously ega dless of ROI co figu atio . The global shutte exposu e accu acy is fully p ese ved withi the wi dowed egio .
Fo ea -i f a ed se sitive i spectio at 5MP, Vadzo’s Falco -521MRS is built o the AR0521 NIR mo och ome se so . As a dedicated NIR mo och ome came a with ROI wi dowi g suppo t th ough the VISPA ARC SDK, it is the app op iate choice fo ba code eadi g u de 850 m illumi atio , NIR-based defect i spectio i semico ducto ma ufactu i g, a d biological sample imagi g i labo ato y automatio systems whe e visible light ejectio a d high th oughput f ame ates a e both equi ed.
Fo motio -accu ate high-speed i spectio o co veyo s a d obotic systems whe e olli g shutte disto tio is u acceptable, Vadzo’s Falco -234MGS is a 2MP global shutte came a built o the AR0234 se so . It delive s global shutte motio accu acy at the esolutio a d f ame ates that machi e visio guida ce a d i spectio o movi g platfo ms equi e.
ROI wi dowi g limits the active eadout a ea of the se so to a defi ed ecta gula egio . Pixels outside the ROI a e ot ead at all. The pixels i side the ROI a e ead at full esolutio with o cha ge to i dividual pixel quality o spatial accu acy. The f ame ate i c eases because fewe ows a e ead pe f ame. The output image ep ese ts a sub- egio of the se so at full pixel pitch a d full spatial esolutio withi the wi dow.
Pixel bi i g combi es the cha ge o digital values of adjace t pixels i to a si gle output value befo e o du i g eadout. This educes the output esolutio by the bi i g facto i each dime sio a d p oduces a output image that cove s the same field of view as the full se so but at educed esolutio . Bi i g ca also i c ease f ame ate because the eadout ci cuit ha dles fewe output values pe li e. Howeve , bi i g educes spatial esolutio ac oss the full field of view, which is a t ade-off that ot all applicatio s ca accept.
The p actical choice depe ds o the applicatio . If the applicatio eeds the full se so field of view at lowe esolutio a d highe speed, bi i g is the app op iate tool. If the applicatio o ly ca es about a defi ed sub- egio of the field of view a d eeds full spatial esolutio withi that egio at a highe speed, se so wi dowi g is the co ect choice.
Vadzo Imagi g’s Falco -234MGS is a global shutte USB came a built o the O semi AR0234 se so , a 1/2.6-i ch CMOS global shutte device with 3.0 µm pixel pitch a d 1920 x 1200 esolutio . Its global shutte a chitectu e exposes all pixels simulta eously i a si gle u ified exposu e eve t, elimi ati g the olli g shutte geomet ic disto tio that appea s o co veyo li es, obotic a ms, a d a y platfo m subject to motio du i g eadout. ROI wi dowi g o the AR0234 se so educes the active eadout a ea to the i spectio zo e, aisi g the achievable f ame ate above the full 1920 x 1200 ceili g while etai i g full global shutte motio accu acy withi the wi dowed egio because the exposu e timi g is u cha ged.
The Falco -234MGS co ects ove USB 3.2 with full UVC complia ce fo plug-a d-play i teg atio o Wi dows, Li ux, a d A d oid without custom d ive developme t. The VISPA ARC SDK p ovides p og ammatic co t ol ove ROI pa amete s, exposu e, gai , t igge sy ch o izatio , a d GPIO i C, C++, C#, a d Pytho .
The Falco -2020MRS, Falco -521MRS, a d Falco -234MGS a e all fully UVC-complia t a d ope ate as plug-a d-play video i put devices o Wi dows, Li ux, a d A d oid. Sta da d st eami g at the device’s default esolutio begi s immediately without a y d ive i stallatio . Fo ROI wi dowi g, f ame ate co t ol, exposu e a d gai adjustme t, t igge sy ch o izatio , bi i g, a d GPIO ma ageme t, the VISPA ARC SDK exte ds the ative UVC i te face with additio al came a co t ol APIs.
Fo OEM teams i teg ati g a y of these high f ame ate came a p oducts i to a p oductio system, the SDK delive s the co figu atio depth equi ed fo ROI wi dowi g deployme t without bu de i g the i teg atio p oject with low-level d ive developme t. ROI epositio i g a d esize ope atio s ca be executed at u time without esta ti g the came a p oduct o ei itializi g the captu e pipeli e, allowi g the imagi g pa amete s to adapt dy amically to diffe e t p oductio stages o i spectio modes withi the same system.
The Falco -2020MRS 20MP O semi Hype Lux AR2020 Mo och ome USB Came a, the Falco -521MRS 5MP NIR Mo och ome USB Came a, a d the Falco -234MGS 2MP Mo och ome Global Shutte USB Came a a e available ow fo evaluatio a d p oductio o de s f om Vadzo Imagi g. Co tact Vadzo Imagi g at
Vadzo Imagi g develops embedded a d machi e visio came a p oducts fo OEMs a d system i teg ato s buildi g p oductio – eady visio systems ac oss i dust ial automatio , obotics, healthca e, a d sma t i f ast uctu e. The compa y’s imagi g po tfolio spa s USB, MIPI, Gigabit Ethe et, Wi-Fi, a d Se Des i te faces, cove i g the full a ge of embedded deployme t a chitectu es. F om compact mo och ome global shutte USB came a modules to full-spect um NIR embedded came a p oducts, Vadzo p ovides e d-to-e d imagi g suppo t, i cludi g se so i teg atio , ISP tu i g, fi mwa e developme t, a d SDK f amewo ks to accele ate system deployme t. Lea mo e at www.vadzoimagi g.com.