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HDTV.ru > Новости индустрии > 3D придет и на российские телеканалы
3D придет и на российские телеканалы20.06.2011 |
![]() Когда начнет работать реально пока неизвестно, но вариант российского телевещания в 3D формате разрабатывается. Для организации стереоскопического цифрового телевещания планируется использовать систему, совместимую с обычным ТВ. Работа над такой технологией 3D/2D вещания ведется уже с 2009 года Московским институтом телевидения (МНИТИ) совместно с ЗАО «Элекард Девайсез» и ООО «Триксес Вижн». Одна из проблем, над которой сейчас ломают головы разработчики во всем мире – втиснуть в полосу частот стандартного телеканала два отдельных сигнала (для левого и правого глаза). Однако наши инженеры смотрят дальше. Они собираются еще сделать 3D телеканалы совместимыми с обычными 2D телевизорами. Т.е. чтобы 3D программы можно было смотреть на обычном телевизоре в прекрасном 2D качестве, без всяких двоений картинки. Задумка состоит в следующем. 3D видеосигнал будет представлен в виде двух составляющих: сигнала изображения 2D и дополнительного сигнала глубины. Другими словами к стандартному телевизионному сигналу будет добавлен сигнал глубины для каждого пикселя картинки на экране. Совместимая система 2D/3D телевидения обеспечит передачу 3D сигналов по сетям цифрового телевизионного вещания DVB-T. По Федеральной программе сеть цифрового наземного вещания DVB-T с использованием алгоритма компрессии изображения MPEG-4 AVC/H.264 должна быть развернута в России к 2015 году. В прошлом месяце на международной выставке «Связь-Экспокомм 2011» Московский институт телевидения демонстрировал оборудование для второго поколения DVB-T2. В нем скорость потока цифровых данных увеличена с 30 Мбит/c до 50 Мбит/c. Поэтому в одном канале DVB-T2 можно передавать до четырех HD программ (при сжатии MPEG-4), тогда как в DVB-T не более одной-двух. Вернуться назад |