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Каква е резолюцията на човешкото око? Колко мегапиксела?
На първо място, искам да започна от Stat, че човешкото око е аналогова структура и не е напълно възможно да се измери с цифров план пиксел размер. Визията център в мозъка не може да пере на светлината информация от очите като филм завеса. Създава изображение, като коментира светлината информация от мозъка. Това изображение е постоянно освежени, в зависимост от скоростта на неврони, които отиват в мозъка, т. е. nerand клетки.
Например, ако ние считаме, че стойността на FPS (кадър в секунда), на 30 FPS във видео филм е достатъчно за нашите очи, за да видите изображението напълно гладко. Но това не означава, че човешкото око е 30 FPS. Човешкото око има определен праг стойност, и когато се вгледате в един преминаващ обект, който е по-бързо от тази стойност, тя не може да улови движенията му и да го видите като нищо не е изтекъл. Използване на камери с висока скорост на затвора, използвани в днешно време, движението на куршум може да бъде лесно examained в милисекунди.
Можем да направим прост тест за скоростта на човешкото око. Първо, приведете вертикалната честота на сканиране на монитора на компютъра към CRT (катодна тръба) до 60 Hz. За да направите това, щракнете с десния бутон върху работния плот и изберете свойства, след което следвайте разделите на монитора, за да получите достъп до настройките на Hz. След като го на 60 Hz, погледнете на екрана на разстояние от 30 см, се фокусира върху един обект от страна на монитора, но вижте монитора с върха на окото. Youll ' бележка как определителен член параван опреснявам този ти обикновено dont ' чувствувам кога youre ' гледам прав е разлагане от връх към дъно. Ако забележите 60 Hz, докато го гледате нормално, опитайте в 75 Hz. Аз мога ръчка то себе си към 75 Hz, но аз арго ' виждам кой да е повече паж преход до 85 Hz и горе. Скоростта на окото може да варира от човек на индивида. Хората, които следват постоянно подробни и се движат нещата с очите си и да работят много внимателно с високи рефлекси се виждат по-бързо.
Ретината със светлинните сензори на очите ни е мембрана, състояща се от невронна структура. Светлинните сензори в ретината са размерите на цифровите фотоапарати, както и сензорите. В действителност, в ямата част на ретината (фовеята), номерата на тези сензори са повече от други региони и светлината, попадащи на ретината е компресиран в мозъка. Ето защо ние гледаме на нас понякога и ние виждаме начина, по който са. Броят на светлината сензорни клетки в нашето око (или казват пиксел) не е простено от качеството на зрението, стига да е над определена критична стойност. Защото мозъкът допълва образа. Дори ако ние dont ' имам един око, наш образ решителност е не deccreased, прав a малък късче на дълбочина чувство изчезвам. Ние не виждаме част от изображението липсва, дори и в случаите, когато по-голямата част от светлинните клетки в окото са ruained, наречени ретината "чета". Можем да го погледнем така: Вие сте затваряне половината от обектива на вашия фотоапарат, но все още виждате изображението пълен; Тъй като Процесорът на камерата завършва липсващата част.
За да се изрази визията на капацитета на очите като megapiels, е необходимо да се тестват очите на рецепторите в пиксели, мисля за това какво ниво на детайлност на мозъка може да създаде. Човешкото око е малък орган и го прави всички неща, с малко количество светлина, идващи върху него. Но лещи на високо-мегапикселова камери са доста големи, и в зависимост от него, те виждат много по-просветените райони в тъмна сцена от човешкото око. Възможно е да се каже ясно, че ако вземете най-високата мегапикселова ставка с око-размер леща и след това дръпнете снимката и да го сравни с един и същи пейзаж, аз съм сигурен, че човешкото око може да бъде повече подробности и. Снимката, взета от цифровата машина ще се разбира, че тя може да улови много по-малко подробности, ако тя се снима и разглежда по същия начин, че хората се виждат без мащабиране.
Ето защо, човешкото око е орган, който е твърде добра, за да се сравни с образа на изкуствени лещи. Но цифровите данни могат да бъдат изразени като megapiels. Ако посочените по-горе условия са предвидени, изчисляването може да се извърши чрез поставяне на стойност приблизително. Но ние не трябва да бъде в състояние да мисля, че терминът megapiels е нищо друго освен една концепция, която показва колко пиксела са действително показани в една сцена. Разбира се, толкова повече пиксели ще изглежда, толкова по-подробно е, но за да го сравни с дела на човешкото око, е необходимо да се вътрешна тема като основен обект изследвания и investiggate и експериментални в лабораторни условия.
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