Digital Moving-Picture Exchange: File Format and Calibration

Snider, D.; Kennel, Glenn; Curry, Ken; McCrackan, Michael

doi:10.5594/j03750

Cited by 3 publications

(2 citation statements)

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“…The CINEON Digital Film System was introduced by Kodak in the early 90's and was quickly adopted by the industry for the digitization of film and subsequent interchange of film and digital images [11]. The system was built with the goal of encoding film printing density.…”

Section: Cineonmentioning

confidence: 99%

Bayesian Methods for Radiometric Calibration in Motion Picture Encoding Workflows

Figueroa¹,

Li²

2019

SMPTE Mot. Imag. J

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A method for estimating the Camera Response Function (CRF) of an electronic motion picture camera is presented in this work. The accurate estimation of the CRF allows for proper encoding of camera exposures into motion picture post-production workflows, like the Academy Color Encoding Specification (ACES), this being a necessary step to correctly combine images from different capture sources into one cohesive final production and minimize non-creative manual adjustments. Although there are well known standard CRFs implemented in typical video camera workflows, motion picture workflows and newer High Dynamic Range (HDR) imaging workflows have introduced new standard CRFs as well as custom and proprietary CRFs that need to be known for proper post-production encoding of the camera footage. Current methods to estimate this function rely on the use of measurement charts, using multiple static images taken under different exposures or lighting conditions, or assume a simplistic model of the function's shape. All these methods become problematic and tough to fit into motion picture production and post-production workflows where the use of test charts and varying camera or scene setups becomes impractical and Thank you to Dr. Pengcheng Shi for all his support, guidance and patience during these past years. Your knowledge, experience and wit helped me balance all aspects of my life to be able to complete this work. In addition, thank you to my dissertation committee for all their guidance and feedback, especially to Dr. Rui Li, for all the technical advice and the insightful conversations that led to finalizing the work presented in this dissertation. Last but not least, thank you to Dr. Jinwei Gu for providing the original inspiration and ideas that helped start up this work. v Dedicated to my family, Anabelle Lee, Ricardo José and Paola Beatriz.

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Section: Cineonmentioning

confidence: 99%

Bayesian Methods for Radiometric Calibration in Motion Picture Encoding Workflows

Figueroa¹,

Li²

2019

SMPTE Mot. Imag. J

View full text Add to dashboard Cite

show abstract

“…In the visual effects industry, footage for film and TV commercials is usually shot at a higher quantization, and scanned as well as delivered as a 10-bit DPX (log) [3] file format to visual effects companies in order to fit the visual effects pipeline. As a part of the film chain, footage is scanned from negative film to digital data and 10-bit logarithmic color space DPX (or Cineon) files represent printing density, which is at the minimum quantization needed to retain the original data information from negative film such as color component crosstalk and gamma value [4].…”

Section: Introductionmentioning

confidence: 99%