Vatsvagiri kubva kuNational University yeSingapore neYonsei University (Korea) vakagadzira nzira yekuona makamera akavanzika mukati memba vachishandisa yakajairika smartphone ine ToF (Nguva yekubhururuka) sensor. Zvinocherechedzwa kuti parizvino kamera yakavanzika inogona kutengwa nemari inopfuura dhora uye makamera akadaro ane 1-2 millimita muhukuru, izvo zvinoita kuti zvive zvakanyanya kuoma kuwana mukati. MuSouth Korea, zviitiko zvinopfuura 6800 XNUMX zvinosanganisira kuiswa kwekamera dzakavanzwa mumakamuri emahotera kana kuti dzimba dzokugezera dzakarekodhwa mukati megore.
Iyo LAPD (Laser-Assisted Photography Detection) nzira yakakurudzirwa nevatsvaguri inoita kuti zvikwanise kuona makamera akavanzika achishandisa mafoni emazuva ano ane sensor yakadzika (ToF), anoshandiswa kufungidzira chinhambwe chezvinhu kana uchitarisa kamera uye mune yakawedzera chokwadi maapplication. Mienzaniso yemafoni anoshandisa ma sensors akadai anosanganisira iyo Samsung S20 uye Huawei P30 Pro. Iyo sensor inovaka mepu yakadzika nekutarisa nzvimbo yakatenderedza nelaser uye kuverenga chinhambwe zvichienderana nekunonoka kusvika kwedanda rinoratidzwa.
Iyo nzira yekuona yakavanzika makamera yakavakirwa pakuziva anomalies mukuvhenekerwa kwelaser kwemalenzi nemalenzi, ayo anogadzira chaiwo mapeji pamepu yakadzika inoguma. Anomalies anowonekwa pachishandiswa muchina kudzidza algorithm iyo inogona kusiyanisa kamera-chaiwo kupenya. Vanyori vechidzidzo ichi vane chinangwa chekuburitsa akagadzirira-akagadzirwa maapplication eiyo Android chikuva mushure mekugadzirisa mamwe matambudziko ane API mipimo.
Nguva yose inodiwa kuongorora kamuri inofungidzirwa kuva 30-60 seconds. Mukuedza kwakaitwa nevazvipiri mazana matatu nenomwe, makamera akavanzwa achishandisa nzira yeLAPD akaonekwa mu379% yezviitiko. Kana tichienzanisa, 88.9% chete yevatori vechikamu vakaedza kuwana makamera neziso, uye kugona kwekushandisa iyo nyanzvi yeK46 chiratidzo che detector yaive 18% uye 62.3%, zvichienderana neyakasarudzwa scanning mode. Nzira yeLAPD yakaratidzawo chiyero chepasi chenhema - 57.7% maringe ne16.67%/26.9% yeK35.2 uye 18% yekutsvaga maziso.
Iko kurongeka kwekuonekwa kweLAPD kunoenderana nekamera yakavanzika inopinda iyo 20-degree yekutarisa angle ye sensor uye iri padanho rakakwana kubva kune sensor (kana iri padhuze zvakanyanya, kupenya kwekamera kwakadzima, uye kana iri kure. kure, inonyangarika). Kuti uvandudze huroyi, zvinokurudzirwa kushandisa masensa ane resolution yepamusoro (mune ma smartphones anowanikwa kune vaongorori, resolution yeToF sensor ndeye 320 Γ 240, i.e. saizi yeanomaly mumufananidzo ingori 1-2 pixels) uye kudzika. tsanangudzo (ikozvino kune 8 chete kune yega pixel kudzika mazinga).
Dzimwe nzira dzekuongorora kuvepo kwekamera yakavanzika dzinosanganisira mawireless traffic analyzer, ayo anoona kuvepo kwevhidhiyo kutenderera pane isina waya network, pamwe nemagetsi emagetsi scanner.
Source: opennet.ru