yadda za a cimma ingantaccen aikin autofocus? sinoseen high quality kyamarori

Daga karanta lambar barcode zuwa fuskar tashar sabis na kai da na'urorin robot na masana'antu masu inganci, kyamarorin autofocus sun zama kayan aiki masu mahimmanci a cikin fannoni da dama. Aikin autofocus yana ba da damar samun ingantaccen mai da hankali ta hanyar daidaita lenz don inganta amincin da ingancin daukar bayanan gani, kuma yadda za a inganta aikin kyamarorin autofocus ya zama abin da aka mai da hankali a kai a wannan lokacin.

Menene mayar da hankali ta atomatik?

Autofocus wani fasali ne na kyamara wanda ke sauri ya dace da canje-canje a nisan tsakanin kyamara da abin da aka dauka ta hanyar canza matsayi na lenz a hankali don samun hoton da ya fi kyau. Tsarin autofocus yana kunshe da birki na lenz, wanimai sarrafa siginar hoto (ISP), da aikin 3A, wanda kalma ce ta hadin gwiwa don autofocus, auto exposure, da auto white balance, wanda ke aiki tare don tabbatar da ingancin hoto mafi kyau. Mun ga bayanan game da autofocus a baya, muna sha'awarlabarin na gaba.

Kalubale na tsarin autofocus

Kyamar autofocus an tsara su tare da wani tsari na mai da hankali na asali na yawanci 10 cm zuwa har abada da matsakaicin daidaiton mai da hankali. Har yanzu yana da dan karen rashin isasshe a wasu takamaiman aikace-aikace, misali:

• A cikin yanayi inda girman abu ya yi karanci sosai fiye da yankin mai da hankali na asali (ROI), daidaiton mai da hankali na asali na iya zama ba isasshe ba.
• Wasu aikace-aikace da ke bukatar tazara aiki mai tsauri ba sa amfana daga fasalin mai da hankali na cikakken kewayon. Lokacin da abubuwa suka rufe mafi yawan ROI, ana bukatar mafi girman daidaiton AF da saurin lokacin daidaitawa.
• Saurin da tsarin autofocus ke kulle zuwa madaidaicin wurin mai da hankali yana da mahimmanci don bukatar saurin amsawa.

Ta yaya za a inganta daidaiton autofocus?

Mai sarrafa siginar hoto (ISP) yana taka muhimmiyar rawa a cikin tsarin AF. Kuma Sinoseen yana da wasu zaɓuɓɓuka don inganta daidaiton mai da hankali na kyamarorin AF, wanda ya haɗa da daidaita saitunan ISP.

1. Amfani da hanyar Two-Pass a cikin ISP

Hanyar gargajiya: Kyamarorin Sinoseen AF na gabaɗaya suna goyon bayan duba guda ɗaya don duk faɗin AF (10cm zuwa har abada) ta tsohuwa. Wannan algorithm na AF yana duba daga har abada zuwa matsayin macro, kuma ana iya keɓance shi tare da saitunan da aka nufa a cikin saitunan ISP. Algorithm na AF yana amfani da hawa tudu don nemo hoton da ya fi kyau ga kowanne fure yayin motsa birki na lenz. ISP yana lissafin matsakaicin gefen kowanne fure kuma yana samun ƙarin haske na kowanne matsayin lenz. Da zarar an cimma mafi girman mai da hankali, matsayin lenz yana daidaita kuma ISP yana komawa ga matsayin Nasarar AF. Wannan na iya rasa daidaito.

Hanyar Biyu-Pass: Amfani da hanyar biyu-pass yana ƙara yawan duba da ISP ke yi. Ana yin duba na farko don tantance matsayin mai da hankali mafi kyau sannan kuma ana yin duba na biyu mai cikakken bayani a kusa da wannan matsayin, wanda ke inganta daidaiton mai da hankali sosai.

2. Rage Faɗin Duba AF

A cikin yanayi inda nisan aiki ya kasance an tantance, kamar yadda ake yi da karanta lambobin barcode ko kuma kiosks na sayarwa, ana iya rage fadin AF don karanta wannan fadin kawai, wanda ke inganta daidaito. Misali, idan wani abu ya tsaya a cikin nisan 1m zuwa 1.5m, ta tsohuwa, kyamarar AF tana mai da hankali tsakanin 100-120. Duk da haka, yana yiwuwa a sake tsara wannan fadin zuwa matakai 255 maimakon matakan 0-255 na al'ada ta hanyar saitunan ISP. don inganta daidaiton AF.

Gabaɗaya, fadin karatu yana tantancewa ta hanyar nisan aiki, wanda ke da amfani ga ISP don karanta wannan yanki tare da ingantaccen daidaito.

3. Kara darajar slot na karatu

Yawan matakan da ke da nisan daidai (slots) a cikin fadin AF yana da alaƙa kai tsaye da daidaiton mai da hankali. Kara darajar slot yana ba da damar karanta fadin mai da hankali da karin bayani, wanda ke haifar da gyare-gyare masu kyau da ingantaccen daidaito. Wannan yana da tasiri musamman a cikin hanyar karatu ta biyu.

4. Inganta lokacin daidaiton AF ta hanyar kara saurin AF

Lokacin da ISP ke ɗauka don gano ingantaccen kaifi yayin motsa matsayin lens ana kiransa lokacin bincike. Canza saitunan ISP tare dakeɓaɓɓen SInoseen kamara modulena iya rage lokacin bincike yadda ya kamata.
Hanyoyin inganta lokacin bincike sun haɗa da:

• Canza Ƙimar Slot
• canza teburin saurin mai motsa jiki (LUT)

da kuma

Canza Ƙimar Slot

Ƙimar slot tana tantance yawan matakan da ake buƙata don lens ta daidaita mai da hankali kuma tana shafar sauri da ingancin autofocus kai tsaye. Ƙara ƙimar slot yana ba da damar lens ta yi ƙananan canje-canje masu yawa, wanda ke haifar da saurin samun mai da hankali, amma na iya rage inganci. A gefe guda, rage ƙimar slot yana jinkirta autofocus, amma na iya inganta inganci ta hanyar yin ƙananan canje-canje.

Canza Teburin Saurin Mai Motsa Jiki (LUT)

LUT yana aiki a matsayin gada tsakanin ISP da mai motsa lenz, yana fassara umarnin mai da hankali zuwa motsi na zahiri. Ta hanyar daidaita LUT, adadin matakai da ake bukata don motsa lenz zuwa wurin da ake so na mai da hankali na iya raguwa, wanda hakan ke rage lokacin daidaitawa. Duk da haka, ya kamata a yi la'akari da musayar daidai na autofocus.

5. Focusing bisa ROI don Kara Sauri

Mai da hankali kan takamaiman yankuna na hoton maimakon dukkanin fuskokin na iya sa tsarin autofocus ya kara sauri sosai. Ta hanyar fifita yankin da ake sha'awa, kyamarar na iya sauri daidaita don canje-canje a cikin wannan yanki, wanda hakan yana da amfani musamman a cikin aikace-aikace kamar gano fuska.

Ƙarshe

Daga abin da muka koya a cikin wannan labarin, yana da bayyana cewa hanyoyin da suka fi tasiri wajen inganta lokutan daidaiton autofocus yawanci suna haɗa da haɗin gwiwar dabaru, ciki har da gyaran slot, canjin LUT, da kuma mayar da hankali bisa ROI. Ci gaba da gwada da inganta waɗannan saitunan yana da mahimmanci don samun daidaito tsakanin sauri da inganci don wani aikace-aikace.

Tabbas, idan kuna da wasu tambayoyi game da yadda za a cimma ingantaccen aikin autofocus, don Allah ku ji daɗin tuntuɓar mu, kamartsinkayeyana da fiye da shekaru goma na ƙwarewa a cikin aikace-aikacen hangen nesa da aka haɗa kuma yana da tabbacin cewa za mu iya ba ku amsa mai gamsarwa.