Contrast Sensitivity Experiment to Determine the Bit Depth for Digital Cinema

Cowan, Matthew D.; Kennel, Glenn; Maier, Thomas O.; Walker, Brad

doi:10.5594/j11549

Cited by 29 publications

(15 citation statements)

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“…In Cowan et al ., the required bit depth was determined, using Barten's perceptual model, and experimentally verified for digital cinema viewing conditions. It was shown that, with a gamma of 2.6, many observers could still see a modulation of one‐code value change on a square wave luminance pattern with 10‐bit encoding, but only a few observers were able to see a one‐code value change with 12‐bit encoding.…”

Section: Dynamic Rangementioning

confidence: 99%

Projection displays: New technologies, challenges, and applications

Maximus

2015

J Soc Info Display

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-The achievable color gamut and light output of projection displays based on light-emitting diodes (LEDs), phosphor conversion, and lasers are discussed. The color appearance phenomena, colorfulness, and the Helmholtz-Kohlrausch effect are discussed in the context of LED and laser illumination of projection displays, as well as some pitfalls concerning the interpretation of the HelmholtzKohlrausch effect. Also the laser speckle phenomenon and the characterization of it are addressed. The importance of both the American National Standards Institute (ANSI) contrast and the sequential contrast of projectors, as well as the discrepancy between measured and perceived contrasts, are explained. Visibility criteria for contouring artifacts are explained and compared with new emerging electro-optical transfer functions that are more adapted to this issue. Stereoscopic solutions and early prototypes of autostereoscopic multi-view, super multi-view projection displays, and electroholographic displays are discussed as well as the limiting factors of these systems in the context of display resolution, and LED and laser light sources.

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Section: Dynamic Rangementioning

confidence: 99%

Projection displays: New technologies, challenges, and applications

Maximus

2015

J Soc Info Display

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“…The 2.6‐power is imposed to invert perceptually uniform encoding. Compared to the 2.4‐power EOCF of studio video, the 2.6‐power offers improved visual performance in the low luminance and dark surround situation of the cinema …”

Section: Modern Practice In Digital Cinemamentioning

confidence: 99%

“…Compared to the 2.4-power EOCF of studio video, the 2.6power offers improved visual performance in the low luminance and dark surround situation of the cinema. 47 Digital cinema standards are completely display referred. There are no SMPTE/DCI standards for digital cinema acquisition; many techniques are in use.…”

Section: Modern Practice In Digital Cinemamentioning

confidence: 99%

Perceptual uniformity in digital image representation and display

Poynton

Funt

2013

Color Research & Application

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Digital image representation is perceptually uniform if a small perturbation of a component value—such as the digital code value used to represent red, green, blue, or luminance—produces a change in light output at a display that is approximately equally perceptible across the range of that value. Most digital image coding systems—including sRGB (used in desktop graphics), BT.709 (used in high‐definition television, HD), Adobe RGB (1998) (used in graphics arts), and DCI P3 RGB (used in digital cinema)—represent colour component (pixel) values in a perceptually uniform manner. However, this behavior is not well documented and is often shrouded in confusion. This article surveys perceptual uniformity in digital imaging and attempts to clarify some widely misunderstood aspects of image coding. © 2013 Wiley Periodicals, Inc. Col Res Appl, 39, 6–15, 2014

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“…So, there is no mesopic bit-depth analysis at this time. In another fact, it is generally known that 11 bits-depth is visible for mesopic vision [3]. Based on this fact, the previous bit-depth analysis may speculate the 2 bits shift from 9 bits to 11 bits.…”

Section: Introductionmentioning

confidence: 96%

“…We proposed "bit-depth analysis" [1] to quantitatively understand bit-depth or PSNR of HVS (human vision system). In this analysis, contrast sensitivity function CSF is converted into bit-depth 2 or PSNR 3 . Dithering or compression technology asks how much degree degradation is admissible.…”

Section: Introductionmentioning

confidence: 99%