Showing papers on "Dark-frame subtraction published in 2020"
Patent•
07 Jul 2020
TL;DR: In this article, an image processing method and device, electronic equipment and a storage medium, which are used for improving the signal-to-noise ratio in a wide dynamic scene, are presented.
Abstract: The embodiment of the invention provides an image processing method and device, electronic equipment and a storage medium, which are used for improving the signal-to-noise ratio in a wide dynamic scene. The method comprises the steps of acquiring a first image and a second image, the first image is a visible light image, and the second image is an infrared light image; respectively acquiring a dark frame image and a bright frame image in the first image; fusing the second image and the bright frame image to obtain a third image; and fusing the third image and the dark frame image to obtain a fourth image.
Patent•
16 Jan 2020TL;DR: In this paper, a method for extracting foreground image and electronic apparatus thereof is provided and implements infrared (IR) technology to perform the foreground image extraction to reduce ambient light effect and background noise.
Abstract: A method for extracting foreground image and electronic apparatus thereof is provided and implements infrared (IR) technology to perform the foreground image extraction to reduce ambient light effect and background noise. Furthermore, the method and electronic apparatus extract an IR light frame image indicating a light state, an IR dark frame image indicating a dark state, and a color image (e.g., RGB image, YUV image, or etc.) at different IR intensities. Then, the method and electronic apparatus calculate the relationship between the IR light frame image and the IR dark frame image to extract a better background image (including the user's face portion, body portion and hair portion) by a simple algorithm.