Thanks to All Who Visited isovideo at SMPTE Dolby Ballroom
Exhibition Booth #110
Hollywood, CA. October 24-26, 2017
Vivid Dynamic HDR to SDR+ Tone Mapping Services
Our latest proprietary visually-optimized Viarte
dynamic HDR to SDR tone-mapping services provide a solution for content creators and service distributors to
tone-map unsaturated HDR (such as PQ at up to 10000 nits)
down to any lower nit value, such as PQ at 1000 nits or vivid Rec709, truly SDR+.
SDR+ takes full advantage of the eye's logarithmic response, so
even though absolute highlight levels are reduced from HDR, a substantially enhanced viewing impact
is nevertheless achievable on most content.
It allows HDR production to be used with current video distribution infrastructure for a genuinely improved
SDR+ viewing experience on any existing SDR display device, from TVs to cell phones, including current
cinema projection systems.
Advantages of Viarte HDR to SDR+ Tone Mapping:
Sharpness and local contrast is maintained as much as possible at all light levels, with minimal saturation in bright areas, and
therefore minimal loss of HDR detail.
Creative intent is optimally preserved by keeping maximum possible details/highlights (including dark details), accurate color balance,
color volume perception and brightness impression.
Depending on the input HDR range, up to 300,000:1 (vs regular 300:1) contrast ratio can be effectively perceived within Rec709 SDR+.
These capabilities were previously associated only with either manual HDR to SDR tone mapping, or all-HDR systems.
Consequently, Viarte tone mapped results are much more vivid than other backward-compatible SDR,
which uses simple tone-mapping curves that squash local contrast and color differences, and thus appear dull, with washed-out
color by comparison.
SDR+ supports viewing at a higher ambient lighting level.
A vivid viewing experience of looking out of a window from within a dark room can now look natural in SDR+.
Allows fast tone mapping from ST2084 (PQ at up to 10000 nits) down to, for example, 1000 nits in ST2084, HLG (ARIB STD-B67), or rec709.
Other transfer function supported include Sony S-log2 and S-log3.
Color conversion (between ACES, BT2020, DCI-P3-D65, rec601, rec709, S-gamut3, etc.) is also performed as necessary.
Constant and non-constant luminance color matrixing is supported.
No input dynamic metadata is required.
Correctly sets SEI metadata for HEVC/AVC, and HEVC master-display chromaticity and white-point settings.
Tone mapping, in conjunction with viarte MC noise reduction, achieves a combination of amazing picture quality
and significant bandwidth savings beyond HEVC/AVC. Please check out our latest publication
"HEVC Results from MC Noise Reduction of HDR Content",
OTT service providers can now offer flexibility in HDR delivery options, depending on the target display capabilities, such
as current Gamma SDR displays, the newer HDR10-capable TVs, or the ultimate HDR Dolby Vision displays.
Since over 99.9% of current viewing devices are SDR,
it therefore makes practical and economic sense to take advantage of the future-proof benefits of HDR acquisition and production workflows, with
SDR+ distribution for broadcast and cable, and SDR+/HDR dual distribution for OTT, IPTV etc (at least for the foreseeable future).
Viarte tone mapping solution allows world-wide HDR production
and distribution to go main-stream, and enable wide-reaching vivid SDR+ viewing impact without compromises,
while HDR content is future-proof and ready for the newer generations of HDR displays to take hold.
Demonstrations of the latest isovideo HDR to SDR+ tone mapping have been given at SMPTE 2017
Dolby Ballroom Exhibition booth #110, Loews Hollywood Hotel, Hollywood, California.
if you need more information, request a private demo or a
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