Recent Content

Transforms: Part 5 - OFDM June 3rd 2022 - 09:00 AM

Thus far we have looked at transforms from a somewhat abstract viewpoint. In contrast, here we look at an application where transforms take center stage.

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HDR: Part 2 - Brightness Encoding May 27th 2022 - 01:00 PM

Dealing with brightness in camera systems sounds simple. Increase the light going into the lens; increase the signal level coming out of the camera, and in turn increase the amount of light coming out of the display. In reality, it’s always been more complicated than that. Camera, display and postproduction technologies have been chasing each other for most of the last century, especially since a period in the late 1990s or early 2000s, when electronic cameras started to become good enough for serious single-camera drama work.

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Electricity: Part 3 - AC Systems May 27th 2022 - 09:00 AM

Here we look at alternating current (AC) systems and how generating AC often requires an intermediate step of converting to DC to improve the efficiencies of AC generators.

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Camera Lenses: Through The Looking Glass, Part I May 26th 2022 - 10:00 AM

That lump of glass on the front of the camera is often taken for granted, but John Watkinson argues that choosing and using lenses wisely can make a big difference in captured image quality.

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Creating Virtual Sets With LED Walls And Unreal Engine With Andy Jarosz May 25th 2022 - 09:00 AM

Virtual production based around LED walls involves a disparate collection of technologies, and the people best placed to get the best out of the technology are often multi-disciplinarians with experience across several fields.

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Information: Part 2 - Gaussian Distribution May 23rd 2022 - 09:00 AM

Information can never be separated from its nemesis, which is uncertainty. The former is only possible by limiting the latter.

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The FCC has declined to preserve a vacant channel in the television bands for use by white space devices and wireless microphones.

FCC Can’t Find Spectrum For Wireless Microphones And Other Devices May 19th 2022 - 10:40 AM

Despite significant lobbying efforts on the part of wireless microphone manufacturers and others to establish secure RF spectrum in which to operate, the FCC has issued a new order declining the industry’s request to preserve a vacant channel in the television bands for use by white space devices and wireless microphones.

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HDR: Part 1 - The State of HDR May 18th 2022 - 12:50 PM

Over the century or so we’ve been making moving images, a lot of improvements have been dreamed up. Some of them, like stereo 3D and high frame rate, have repeatedly suffered a lukewarm reception. Other things, like HD, and even sound and color, enjoyed more or less universal acclaim.

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