Собираю тут дрон в путешествие, примерил крепление для GoPro. На простых FPV-дронах присутствие GoPro — обычное явление. Курсовая камера обычно не слишком высокого качества, и для окончательного видео ведут запись отдельно. Но зачем это на DJI, у которого и так камера с хорошими характеристиками?
Всё дело в стабилизации. С одной стороны, у GoPro на борту алгоритм Hypersmooth, который неплох, но не превосходит бортовой же алгоритм, встроенный в DJI. По крайней мере, разница совершенно точно не стоит добавочных 200 грамм веса и добавочных денег на покупку GoPro.
Но всё меняется, когда речь заходит о постобработке. GoPro пишет данные с гироскопа, синхронизированные с видеорядом, то есть угол наклона и другие движения можно вычислять не с помощью анализа изображения, а просто знать действительные значения в момент съёмки. Это позволило им выпустить программу ReelSteady, которая стабилизирует, как боженька. Ничто даже близко не подобралось к ней. Результат стабилизации невероятно офигенный и на три головы превосходит абсолютно все другие решения на рынке. Из-за этого многие владельцы DJI FPV, как и я, прикручивают на свой дрон GoPro, жертвуя маневренностью и полетным временем (а в случае аварии ещё и дополнительными деньгами).
Очень странно, что компания DJI сама не сделала ничего подобного: гироскоп в системе есть, алгоритм стабилизации известен — да, существует опенсорсная альтернатива ReelSteady под названием GyroFlow, работает ничуть не хуже. Но факт остаётся фактом: стабилизация на основе гиро-данных на световые годы впереди всего остального. Она, конечно, требует изрядных вычислительных ресурсов и не может быть произведена прямо на борту дрона или экшен-камеры. Даже мощный компьютер справляется не в реальном времени. Тем не менее, для получения действительно качественного результата это всё оправдано.
Я пока ни разу не пробовал сам летать с GoPro. Если не убьюсь о первую же скалу в Карелии, вы сможете увидеть результат через пару недель.
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🪐 In the spiral galaxy NGC 4438, astronomers have detected a massive black hole mysteriously offset from the galaxy’s center—an unusual finding, since black holes normally anchor the middle of their galaxies. This strange displacement may be the result of a past collision with another galaxy, suggesting black holes can be knocked off-center by cosmic crashes and altering our picture of how galaxies and their hidden giants interact. ✨
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🪐 The galaxy NGC 4676, known as the "Mice Galaxies," features two spiral galaxies caught in the act of colliding, with long, bright tails of stars and gas stretching far into space. These tails, called tidal tails, form as the galaxies' mutual gravity pulls their outer stars apart, creating a striking and highly unusual shape rarely seen in the cosmos. ✨
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🪐 In the galaxy ARP 299, astronomers have witnessed a truly strange cosmic phenomenon: two galaxies colliding and triggering a burst of more than a hundred supernova explosions in a single region. This dramatic event releases vast amounts of energy and creates a glowing cloud of hot gas, showing how cosmic crashes can transform entire regions of space in a dazzling display of stellar death and rebirth. ✨
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🪐 The galaxy known as the Cartwheel Galaxy, located about 500 million light-years away in the constellation Sculptor, displays a striking ring-and-spoke structure unlike ordinary spirals or ovals. Its unusual shape was created when a smaller galaxy crashed through its center, sending waves of star formation racing outward and leaving behind bright, circular rings and faint, radial arms—an extraordinary cosmic ripple frozen in space. ✨
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🪐 The galaxy Arp 147 shows off one of the universe’s strangest shapes—a bright blue ring of young stars wrapped around a reddish core, formed after a dramatic collision with another galaxy. This kind of "ring galaxy" is extremely rare, created when one galaxy punches through another, sending waves through the gas and sparking new stars to ignite in a perfect circle, making Arp 147 a cosmic example of how galactic crashes can sculpt extraordinary structures. ✨
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🪐 The galaxy NGC 922, located about 157 million light-years away in the constellation Fornax, sports a dramatic ring-shaped structure that formed after it collided with a smaller galaxy. This "collisional ring galaxy" features a bright, blue ring of new stars encircling its core, revealing the powerful effects of galactic crashes and creating a cosmic shape rarely found in the universe. ✨
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🪐 In 2023, astronomers using gravitational wave observatories detected GW230307, a signal from the merger of two neutron stars in a distant galaxy. Neutron stars are the incredibly dense cores left behind after supernova explosions, and their collision sent ripples—gravitational waves—through space itself, allowing scientists to study the properties of matter squeezed far beyond anything found on Earth. ✨
#gravitationalwaves⚡#neutronstars⚡#collisions⚡#nasa⚡#galaxy⚡#stars⚡#astronomy⚡#universe⚡#cosmos⚡#space
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🪐 The galaxy ESO 510-G13, located about 150 million light-years away in the Hydra constellation, has a warped, twisted disk that gives it a bizarre, "bent" appearance. Scientists think this unusual shape was caused when ESO 510-G13 merged with a smaller galaxy, distorting its spiral arms and creating a dramatic ripple through its structure—making it one of the most visually striking examples of cosmic collisions turning galaxies into real oddities. ✨
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🪐 In the galaxy NGC 660, astronomers have discovered a rare and bizarre "polar ring"—a huge ring of gas and stars wrapping around the galaxy at a right angle to its main disk. These unusual rings may form after galactic collisions, twisting the cosmic structure into a shape unlike any other in the universe. ✨
#phenomenon⚡#galaxies⚡#collisions⚡#nasa⚡#galaxy⚡#stars⚡#astronomy⚡#universe⚡#cosmos⚡#space
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🪐 The galaxy UGC 4881, located about 500 million light-years away, has a remarkable "double-tailed" structure—two long streams of stars and gas extending in opposite directions. This unusual shape was formed when two spiral galaxies collided and merged, creating a cosmic bridge and tidal tails that make UGC 4881 stand out among the universe’s strangest-looking galaxies. ✨
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🪐 Far out in the Virgo Cluster, astronomers observed a rare cosmic event called an "ultra-compact dwarf galaxy collision," where two tiny, densely packed galaxies like M60-UCD1 have smashed together. The aftermath of such a collision can create ultrabright X-ray sources and disrupt the structure of both galaxies, showing that even small galaxies can undergo dramatic and strange transformations when they collide in deep space. ✨
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