Vehicle-mou ted imagi g ope ates i o e of the most optically hostile e vi o me ts a CMOS se so e cou te s. The lumi a ce atio betwee a active headlight sou ce a d the su ou di g oad su face at ight ca spa five o mo e stops of dy amic a ge withi a si gle f ame. A came a se so optimized fo ave age sce e lumi a ce will clip headlight data i ight sce es o ove expose i daylight co ditio s. Neithe co ditio is acceptable fo a 5MP accide t evide ce came a whose output may be submitted to a i su e , fleet ope ato , o e fo ceme t autho ity.
LED t affic sig als a d vehicle b ake lights ope ate o pulse-width modulatio duty cycles. At sta da d f ame ates, the se so exposu e wi dow ca ope du i g the off phase of the PWM cycle, p oduci g a da k a tefact whe e the lit sig al should appea . I accide t docume tatio came a footage, a f ame showi g a i co ect sig al state c eates a data i teg ity failu e that u de mi es the evide tia y value of the eco di g. Motio blu is a compou di g facto : at 100 km/h a vehicle t avels app oximately 28 met es pe seco d, a d exposu e wi dows lo g e ough to compe sate fo low light will smea fast-movi g objects ac oss the f ame. A motio blu eductio USB came a a chitectu e must bala ce exposu e time, gai , a d oise floo simulta eously to p oduce f ames usable fo lice se plate ecog itio a d sce e eco st uctio .
The O semi AR0521 is a 5MP CMOS image se so built with a specific emphasis o high dy amic a ge pe fo ma ce a d low- oise a chitectu e i challe gi g illumi atio e vi o me ts. The 1/2.5″ optical fo mat with a 2.2 µm pixel pitch delive s 2592 x 1944 esolutio th ough a olli g shutte eadout that suppo ts se so -level multi-exposu e HDR tech iques.
The AR0521’s HDR modes exte d the usable lumi a ce a ge withi the se so ‘s captu e p ocess, etai i g ecove able pixel data i both the b ight zo e a ou d headlight sou ces a d the da ke oad su face withi the same f ame. This is achieved th ough se so -level exposu e co t ol athe tha softwa e-side post-p ocessi g, so the dy amic a ge be efit is p ese ved i the full- esolutio output befo e a y ISP ma ipulatio eaches the host system.
LED flicke mitigatio i the AR0521 alig s the i teg atio pe iod to the PWM duty cycle of LED light sou ces so that a complete illumi atio cycle is always captu ed withi each f ame of exposu e. This elimi ates the duty-cycle d opout a tefact at the se so level without f ame i te polatio o post-p ocessi g, p ese vi g the tempo al authe ticity of the captu ed footage. Fo a video telematics came a eco di g i te sectio eve ts, eliable sig al-state ep ese tatio is the baseli e evide tia y equi eme t. The se so ‘s low- oise a chitectu e allows the exposu e wi dow to emai sho t e ough fo motio cla ity while mai tai i g sig al-to- oise atios that suppo t visual i te p etatio a d AI-based sce e a alysis. This is the e gi ee i g atio ale fo selecti g the AR0521 as the fou datio of a claims evide ce came a platfo m.
The Falco -521CRS i teg ates the O semi AR0521 se so o a compact 38mm x 38mm boa d with a USB 3.0 Type-C i te face a d full UVC complia ce, maki g it a plug-a d-play OEM telematics came a module that st eams immediately o Wi dows, Li ux, a d A d oid. Without custom d ive developme t. The S-Mou t (M12) le s holde suppo ts sta da d optics selectio fo the deployme t field of view. The boa d ope ates ac oss a exte ded tempe atu e a ge suited to i -vehicle e vi o me ts whe e the mal cycli g betwee cold sta t a d ope ati g tempe atu e is a daily co ditio .
At 5MP, the AR0521 captu es sufficie t pixel de sity fo lice se plate ide tificatio , vehicle classificatio , a d oadway geomet y a alysis withi a si gle wide-a gle f ame. This is the esolutio th eshold below which si gle-came a telematics systems must c op the sce e to ide tify plates o accept that ide tificatio will fail at lo ge captu e dista ces. Fo c ash a alysis came a eview a d eco st uctio wo kflows, the full 5MP output p ese ves spatial i fo matio f om the mome t of captu e without equi i g post-captu e upscali g.
The AR0521’s HDR a chitectu e ma ages the headlight-to- oad lumi a ce co t ast that is the p ima y exposu e challe ge i ight d ivi g. By etai i g ecove able pixel data ac oss the sce e’s full lumi a ce a ge withi the se so i teg atio p ocess, the Falco -521CRS p oduces f ames whe e headlight zo es do ot oblite ate vehicle geomet y a d plate data behi d them, a d whe e da k oad su faces etai e ough sig al fo la e ma ki g a d positio a alysis. Fo a 5MP day ight HDR came a deployme t, this mea s that the sce e detail p ese t ow of a i cide t is available i the eco ded footage athe tha lost to satu atio o u de exposu e.
The AR0521’s LED flicke mitigatio sy ch o izes the se so i teg atio pe iod to the PWM duty cycle of t affic sig als, vehicle lighti g, a d illumi ated sig age. I t affic law e fo ceme t came a a d i su a ce claims applicatio s, accu ate sig al-state ep ese tatio is ot a quality met ic. It is a legal equi eme t fo footage that accu ately ep ese ts co ditio s at the time of a i cide t. The se so -level impleme tatio p ese ves tempo al authe ticity without post-p ocessi g, maki g the Falco -521CRS a app op iate fou datio fo a black box came a module whe e the evide tia y i teg ity of captu ed footage must be u impeachable.
Sho t exposu e wi dows ecessa y at vehicle ope ati g speeds to educe photo cou t pe pixel, i c easi g the elative oise co t ibutio i the fi al image. The AR0521’s low- oise colo a chitectu e mai tai s acceptable sig al-to- oise atios at sho t i teg atio times, allowi g the Falco -521CRS to ope ate as a 5MP LED flicke mitigatio came a a d a motio -sha p dashcam simulta eously. Colo output uses a sta da d Baye patte with se so -level p ocessi g that p ese ves accu ate hues a d satu atio ac oss the daylight-to- ight ope ati g a ge.
Full UVC complia ce o the USB 3.0 i te face emoves custom d ive developme t f om the OEM i teg atio scope. The came a egiste s as a sta da d video i put device o Wi dows, Li ux, a d A d oid o co ectio . Fo embedded telematics came a developme t teams, UVC complia ce elimi ates d ive compatibility isk ac oss OS ve sio s a d educes lo g-te m platfo m mai te a ce ove head. The USB 3.0 i te face p ovides sufficie t ba dwidth fo 5MP esolutio st eami g without comp essio a tifacts that would deg ade footage quality fo claims a d eco st uctio a alysis.
The 38mm x 38mm boa d with S-Mou t (M12) le s holde fits di ectly i to dashcam e closu e desig s, ea view mi o housi gs, a d fleet telematics module e closu es without boa d edesig . USB-powe ed a chitectu e elimi ates dedicated powe egulato s f om the host system desig . RoHS 3 a d REACH co fo ma ce positio s the module as a p oductio – eady compo e t fo OEM p oducts dist ibuted i to egulated ma kets globally.
“I su a ce telematics is o e of the few embedded visio segme ts whe e the image quality sta da d is defi ed by legal a d evide tia y equi eme ts athe tha system pe fo ma ce met ics. A fleet i cide t came a that clips headlights, mis ep ese ts t affic sig al state, o blu s fast-movi g objects does ot just p oduce poo quality footage. It p oduces footage that ca ot be elied upo i claims of adjudicatio o accide t eco st uctio . The AR0521 add esses the th ee specific failu e modes of sta da d dashcam se so s: dy amic a ge at ight, LED sig al accu acy u de PWM sou ces, a d oise-floo -i duced motio blu at speed. The Falco -521CRS b i gs those se so -level capabilities i to a fo m facto a d i te face that OEM telematics develope s ca i teg ate di ectly without sta ti g f om a efe e ce desig .” – Alwi Vi ce t, P oduct Ma age , Vadzo Imagi g
I su e s a d claims adjuste s equi e footage i which lice se plates a e eadable, sig al states a e co ectly captu ed, a d spatial elatio ships betwee vehicles a d i f ast uctu e a e geomet ically i te p etable. The Falco -521CRS add esses each equi eme t th ough the AR0521’s 5MP esolutio fo spatial detail, HDR fo lumi a ce a ge i mixed lighti g, a d LED flicke mitigatio fo accu ate sig al-state ep ese tatio . I fo mal eco st uctio wo kflows, a alysts use video footage to establish p e-impact speed, t ajecto y, b aki g eve ts, a d elative vehicle positio s. The AR0521 accide t eco st uctio came a a chitectu e of the Falco -521CRS p ovides the low- oise colo output a d motio cla ity that makes this level of a alysis tech ically feasible f om dashcam-sou ced footage.
Fleet ope ato s deployi g d ive behavio came a systems equi e co ti uous high-quality eco di g ac oss u ba stop-sta t d ivi g u de va ied a tificial illumi atio , moto way c uisi g at speed i low ambie t light, a d u al outes with o i f ast uctu e lighti g. The Falco -521CRS ha dles this ope atio al a ge th ough the AR0521’s combi ed HDR a d low- oise a chitectu e. At 5MP, the came a p ovides the pixel de sity equi ed fo simulta eous i -cabi a d fo wa d-faci g a alysis i a fleet safety came a applicatio without esolutio comp omise.
A t affic law e fo ceme t came a i a vehicle-mou ted e fo ceme t ole must captu e lice se plates at closi g speeds, esolve sig al states accu ately, a d mai tai image quality th ough the ope atio al tempe atu e a ge of the deployme t vehicle. The AR0521’s LED flicke mitigatio is di ectly eleva t to sig al-state e fo ceme t applicatio s whe e i co ect sig al ep ese tatio i captu ed footage c eates a legal challe ge to the e fo ceme t actio . Fo oadway a alytics came aapplicatio s, the 5MP output p ovides sufficie t spatial esolutio fo vehicle classificatio a d i cide t detectio f om a si gle dashboa d-mou ted i stallatio .
Mode co ected vehicle telematics platfo ms i teg ate imagi g with GPS telemet y, accele omete data, a d cellula upli ks. The Falco -521CRS fu ctio s as the imagi g ode i these a chitectu es, captu i g the fo wa d video st eam sy ch o ized with the telematics data eco d. As a co ected vehicle came a with USB 3.0 UVC complia ce, it i teg ates with the host telematics p ocesso without p op ieta y d ive developme t. Fo eve t data eco de came a applicatio s, the HDR a d low- oise a chitectu e e su e that f ames captu ed at the mome t of t igge a e of sufficie t quality fo claims a d eco st uctio use ega dless of ambie t lighti g co ditio s.
The Falco -521CRS is suppo ted by the Vadzo VISPA ARC SDK, p ovidi g p og ammatic co t ol ove st eami g pa amete s, egio of i te est co figu atio , exposu e, gai , t igge sy ch o izatio , bi i g, a d wi dowi g. APIs a e available i C, C++, C#, a d Pytho ac oss Wi dows, Li ux, a d embedded platfo ms. Fo OEM teams buildi g p oductio -g ade co ected dashcam came aapplicatio s, the SDK e ables full se so -level co t ol beyo d the UVC baseli e. Sma t GPIO ma ageme t, still image captu e, image flip, a d secu e fi mwa e update fu ctio s a e i cluded. UVC complia ce e su es the module st eams immediately o co ectio fo apid evaluatio befo e SDK i teg atio begi s.
Se so -level HDR is the co ect fix. I a ative HDR a chitectu e, the se so captu es high-gai a d low-gai data withi the same i teg atio p ocess a d combi es them i to a si gle output that etai s a ecove able sig al ac oss the full sce e lumi a ce a ge. That is why 5MP HDR dashcam USB came a p oducts built o se so s with ative HDR suppo t p oduce f ames whe e headlight zo es a d shadow a eas both co tai usable detail simulta eously. Softwa e co ectio ca ot ecove data that was eve captu ed.
Fo accide t eco st uctio a d i su a ce claims adjudicatio , that is ot a quality issue. A f ame whe e a active t affic sig al appea s da k is a evide tia y failu e because the footage o lo ge accu ately ep ese ts what the sce e looked like at the mome t of captu e. LED flicke mitigatio add esses this by sy ch o izi g the se so i teg atio pe iod to the PWM duty cycle so a complete illumi atio cycle always falls withi each f ame of exposu e. This is a se so -level fu ctio . It ca ot be eplicated th ough post-p ocessi g o the host side. A y came a p oduct desig ed fo telematics evide ce eco di g o fleet i cide t docume tatio eeds this built i to the se so a chitectu e f om the sta t, ot applied afte wa d.
The dy amic a ge has to come fi st. The se so must etai ecove able pixel data ac oss the full sce e lumi a ce a ge without clippi g headlight zo es o losi g shadow detail, a d this eeds to happe withi the se so i teg atio p ocess itself athe tha th ough softwa e-side me gi g afte the fact. LED flicke mitigatio is the seco d equi eme t. The se so i teg atio pe iod must sy ch o ize the PWM duty cycle of LED t affic sig als a d vehicle lighti g so that sig al states a e accu ately ep ese ted i eve y captu ed f ame. Fo evide ce applicatio s, this is ot a ice-to-have. It di ectly affects the legal eliability of the footage. Noise floo at sho t exposu e times is the thi d. At vehicle speeds of 100 km/h a d above, a vehicle cove s oughly 28 met es pe seco d. The se so has to mai tai usable sig al-to- oise atios at b ief i teg atio times to p eve t motio blu without equi i g lo ge exposu es that i t oduce f ame smea .
Vadzo Imagi g selects the O semi AR0521 fo its i su a ce telematics came a p oducts p ecisely because it add esses all th ee of these at the se so a chitectu e level. The 1/2.5″ 5MP CMOS with 2.2 µm pixel pitch delive s se so -level HDR a d LED flicke mitigatio alo gside a low- oise colo a chitectu e that keeps footage sha p at speed. OEM develope s ca explo e Vadzo’s full telematics a d fleet ma ageme t came a po tfolio at vadzoimagi g.com.
Fo c ash a alysis a d eco st uctio wo kflows, this is sig ifica t because a alysts use eco ded video to establish p e-impact speed, t ajecto y, b aki g eve ts, a d elative vehicle positio s. Spatial i fo matio that was ot captu ed ow of the i cide t ca ot be ecove ed f om the eco di g afte wa d. USB 3.0 ba dwidth suppo ts st eami g the full 5MP output without i t oduci g comp essio a tifacts that would deg ade footage quality du i g claims eview.
UVC complia ce o the USB 3.0 i te face also emoves custom d ive developme t f om the OEM i teg atio scope e ti ely. The came a p oduct egiste s as a sta da d video i put o Wi dows, Li ux, a d A d oid upo co ectio , with o additio al d ive wo k equi ed. Fo embedded telematics developme t teams that elimi ate d ive compatibility isk ac oss OS ve sio s a d educe the lo g-te m mai te a ce ove head that comes with p op ieta y i te faces.
Vadzo Imagi g builds this specificatio p ofile i to p oductio – eady came a p oducts desig ed specifically fo fleet telematics a d evide ce eco di g OEM i teg atio . E gi ee i g teams ca eview tech ical datasheets, CAD files, a d SDK docume tatio at vadzoimagi g.com.
Vadzo Imagi g’s came a p oducts fo fleet telematics, i su a ce evide ce captu e a d co ected vehicle systems a e e gi ee ed fo exactly this i teg atio p ofile. Vadzo p ovides evaluatio u its with o mi imum o de qua tity a d di ect e gi ee i g suppo t th ough desig -i a d p oductio amps. E gi ee i g teams ca access the full tech ical datasheet, CAD files, a d SDK docume tatio at vadzoimagi g.com o co tact Vadzo’s sales team at
The Falco -521CRS O semi AR0521 5MP i su a ce telematics came a is available ow fo evaluatio a d p e-p oductio sampli g, with p oductio qua tities available fo OEM deployme t. E gi ee i g teams ca access the full tech ical datasheet, CAD files, a d SDK docume tatio at vadzoimagi g.com, o co tact Vadzo’s sales team 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 platfo ms spa USB, MIPI, GigE, 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 edge devices to dist ibuted etwo ked systems. Beyo d ha dwa e, 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, givi g e gi ee i g teams a si gle pa t e f om i itial evaluatio th ough p oductio lifecycle ma ageme t. Explo e Vadzo’s full telematics a d fleet ma ageme t came a po tfolio o visit www.vadzoimagi g.com.
