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Mike Izquierdo

Mike Izquierdo's Public Library

  • up to 12-bit per component
  • including the perceptually optimized image quality and the low-latency Intra and Intra-Refresh encoding modes.

  • it’s more difficult to find content mastered for Dolby Vision.
  • In the UK more specifically, only LG’s OLED 4K HDR televisions support Dolby Vision, with no cheaper sets yet to be released. At present, there aren’t any Dolby Vision capable Blu-ray players on sale.
  • All Dolby Vision branded TVs will support the 12-bit colour depth required.

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  • 600nit is still more than enough to see what a difference HDR will make to your viewing habits

  • Ultra HD Blu-ray is a separate media format from traditional Blu-ray. They're technically very similar, but are completely distinct in execution. They're both optical discs that use 405nm "blue" lasers for reading and writing data. However, regular Blu-rays range from 25GB to 50GB and can only contain up to 1080p video. Ultra HD Blu-rays start at 33GB and can go up to 100GB. They also have proportionally higher data transfer rates, ranging from 82 to 128 megabits per second compared with standard Blu-ray discs' 54Mbps.

  • As an alternative to the full-fledged port, the SuperMHL protocol could also be slapped on the versatile USB Type-C cable. But the data transfer rate will be much lower, which could affect the frames per second and color depth.

  • One measurement system uses a special test signal that synchronizes a video "flash" and audio tone burst.

  • In 1998, ITU-R published BT.1359, recommending the relative timing of sound and vision for broadcasting. Studies by the ITU and the others have suggested that thresholds of timing for viewer detection are about +45ms to -125ms, and the thresholds of acceptability are about +90ms to -185ms. In addition, the ATSC Implementation Subcommittee IS-191 has found that under all operational situations, the sound program should never lead the video program by more than 15ms and should never lag the video program by more than 45ms ±15ms.

  • We note that the signal is first convoluted with the filter bank and then subsampled. In other words, only half the samples are kept, with the other half of the filtered samples thrown away. Clearly this is not efficient, and it would be better to do the subsampling before the filtering operation. This leads to an alternative implementation of the wavelet transform termed lifting approach. It turns out that all FIR wavelet filters can be factored into lifting step.
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