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					<a href="http://www.hdtv.ru/">HDTV.ru</a> > Новости индустрии > <a href="http://www.hdtv.ru/news/industry/13469-kompaktnaya-8k-telekamera-nhk.html">Компактная 8K телекамера NHK</a>
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					<h1>Компактная 8K телекамера NHK</h1>
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					<small>03.06.2013</small>
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<div align="center"><!--TBegin--><a href="http://www.hdtv.ru/uploads/posts/2013-06/1370233274_nhk.jpg" onclick="return hs.expand(this)" ><img src="http://www.hdtv.ru/uploads/posts/2013-06/thumbs/1370233274_nhk.jpg" alt='Компактная 8K телекамера NHK' title='Компактная 8K телекамера NHK'  /></a><p class="thumb_enlarge"><img src="/engine/skins/images/enlarge.png" width="16" height="16" border="0">Кликните на картинку для ее увеличения</p><!--TEnd--></div><br /><br />Японская NHK разработала новую, более компактную камеру для ведения телевизионных трансляций с разрешением 8К. Размер 33-мегапиксельного сенсора изображения составляет лишь около 25 мм по диагонали. Плата электроники для управления занимает всего 10 кв. см, а общий вес профессиональной 8К камеры около 2 кг.<br /><br /><div align="center"><!--TBegin--><a href="http://www.hdtv.ru/uploads/posts/2013-06/1370233309_nhk2.jpg" onclick="return hs.expand(this)" ><img src="http://www.hdtv.ru/uploads/posts/2013-06/thumbs/1370233309_nhk2.jpg" alt='Компактная 8K телекамера NHK' title='Компактная 8K телекамера NHK'  /></a><p class="thumb_enlarge"><img src="/engine/skins/images/enlarge.png" width="16" height="16" border="0">Кликните на картинку для ее увеличения</p><!--TEnd--></div><br /><br />Разработанная совместно с Astro Design оптическая головка камеры стала гораздо легче и компактнее. Монитор камеры имеет разрешение 4K, но обработка сигнала ведется с поддержкой 8K. Датчик изображения поддерживает частоту кадров 120 Гц, но система обработки таких видеосигналов еще не готова. Так что используется пока 60 Гц.<br /><br /><div align="center"><!--TBegin--><a href="http://www.hdtv.ru/uploads/posts/2013-06/1370233257_nhk3.jpg" onclick="return hs.expand(this)" ><img src="http://www.hdtv.ru/uploads/posts/2013-06/thumbs/1370233257_nhk3.jpg" alt='Компактная 8K телекамера NHK' title='Компактная 8K телекамера NHK'  /></a><p class="thumb_enlarge"><img src="/engine/skins/images/enlarge.png" width="16" height="16" border="0">Кликните на картинку для ее увеличения</p><!--TEnd--></div><br /><br />NHK в сотрудничестве с Mitsubishi Electric также разработала первый в мире HEVC/H.265 кодер для 8K Ultra HD, работающий  в режиме реального времени. В настоящее время кодирование осуществляется с частотой 60 Гц, а NHK планирует работать на 120 Гц, как того требует спецификация Ultra Hi-Vision. Видеосигнал разбивается на 17 отдельно передаваемых полос и кодируется при скорости битрейта 85 Мбит/c. Учитывая входной сигнал от датчика в 30 Гбит/c, коэффициент сжатия получается 1/350.
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