A Digital Grayscale Generation Equipment for Image Display Standardization
Source abstract
Abstract
The standardization of grayscale display is essentially significant for image signal communication, transmission, and terminal reading. The key step of this standardization is establishing a traceable equipment of grayscale. As a relative value, grayscale is transferred to two different absolute values to satisfy different traceability methods, including optical density for hardcopy image and luminance for softcopy. For luminance, a generation equipment is designed to build the relationship between luminance and grayscale. In this work, novel equipment is established using digital light processing (DLP) by time-frequency modulation, and the corresponding uncertainty is analyzed. The experiment result shows that this digital equipment builds the relationship between grayscale and luminance in the range of 0.16-4000 cd/m2. It enables traceable measurement of grayscale to luminance on this equipment with high accuracy and can provide a standardized reference for the display of grayscale images in the fields of medicine, remote sensing, non-destructive testing, etc.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Color Science and Applications · Infrared Target Detection Methodologies · Surface Roughness and Optical Measurements
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Div. of Optics, National Institute of Metrology, Beijing 100029, China
Photonics and Sensors Group, Department of Engineering, University of Cambridge, Cambridge CB3 0FA, UK
Key Laboratory of Photoelectronic Imaging Technology and System (Ministry of Education of China), School of Optoelectronics, Beijing Institute of Technology, Beijing 100081, China
School of Printing and Packaging Engineering, Beijing Institute of Graphic Communication, Beijing 102600, China
Funding
National Natural Science Foundation of China · National Key Research and Development Program of China
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