Eastman Kodak patented a digital printing system with in-track position corrections. The system includes printing subsystems, data processing system, and digital memory storing a non-linear correction function for printing digital images with anti-aliasing pixels. The correction function specifies position corrections based on cross-track position. GlobalData’s report on Eastman Kodak gives a 360-degree view of the company including its patenting strategy. Buy the report here.
According to GlobalData’s company profile on Eastman Kodak, was a key innovation area identified from patents. Eastman Kodak's grant share as of February 2024 was 83%. Grant share is based on the ratio of number of grants to total number of patents.
Digital printing system with in-track position corrections
A recently granted patent (Publication Number: US11914319B1) discloses a digital printing system that incorporates in-track position corrections to enhance the quality of printed digital images. The system includes one or more printing subsystems, each equipped with a linear printhead containing an array of light sources for exposing a photosensitive medium. A data processing system and digital memory store a representation of an in-track position correction function, which specifies corrections to be applied based on cross-track position. The system processes digital image data, corrects image lines using the stored correction function, and adds anti-aliasing pixels at specific positions to improve image quality.
The patent further details the modification of corrected image lines by adjusting pixel values, providing anti-aliasing pixels only along edges with significant contrast, and determining inside corner pixels based on specific criteria. The system also includes a method for determining the in-track position correction function through a series of steps involving printing a test target, capturing an image, and analyzing alignment marks. Additionally, the patent describes the use of LED light sources in the linear printhead, the inclusion of a resize factor in image resampling, and the integration of a digital image capture system within the printing system for image analysis purposes. Overall, the digital printing system aims to optimize image quality through precise in-track position corrections and anti-aliasing techniques.
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