US 12,248,722 B2
Image correction system and method therefor
Shan-Le Shih, New Taipei (TW)
Appl. No. 18/267,440
Filed by Shan-Le Shih, New Taipei (TW)
PCT Filed Aug. 6, 2021, PCT No. PCT/CN2021/111249
§ 371(c)(1), (2) Date Jun. 14, 2023,
PCT Pub. No. WO2023/010546, PCT Pub. Date Feb. 9, 2023.
Prior Publication US 2024/0118850 A1, Apr. 11, 2024
Int. Cl. G06T 3/40 (2024.01); G06F 3/14 (2006.01); H04N 23/695 (2023.01)
CPC G06F 3/14 (2013.01) [G06T 3/40 (2013.01); H04N 23/695 (2023.01)] 9 Claims
OG exemplary drawing
 
9. An image correction method comprising:
(a) an image regression application unit retrieving an original image captured image and a tilt angle information (θ) from one or more image information carriers, and scaning each frame of image signals of the original image captured image to obtain a total number of pixels in an original horizontal direction (w), a total number of pixels in an original vertical direction (h), a horizontal coordinate of any original pixel (x), and a vertical coordinate of any original pixel (y);
(b) the image regression application unit outputting a total number of pixels in a first horizontal direction (w′) and a total number of pixels in a first vertical direction (h′) around the original image captured image based on the total number of pixels in the original horizontal direction (w) and the total number of pixels in the original vertical direction (h) and generating a surrounding frame, wherein the surrounding frame is in contact with four vertices of an image boundary of the original image captured image;
(c) the image regression application unit outputting a first pixel horizontal coordinate (x′) and a first pixel vertical coordinate (y′) in a not tilted state based on the tilt angle information (θ), so that the original image captured image can generate a new pixel position based on the first pixel horizontal coordinate (x′) and the first pixel vertical coordinate (y′) to generate a new pixel position, so as to correct the original image captured image back to a horizontal state without tilt based on the new pixel position; and
(d) the image regression application unit obtaining a total number of pixels in a second horizontal direction (w″) and a total number of pixels in a second vertical direction (h″) based on an original image equal aspect ratio (h/w), and outputting a second pixel horizontal coordinate (x″) based on the total number of pixels in the second horizontal direction (w″), the total number of pixels in the first horizontal direction (w′) and the first pixel horizontal coordinate (x′), and then outputting a second pixel vertical coordinate (y″) based on the first pixel vertical coordinate (y′) for correcting an image output to the display screen to be consistent with an image aspect ratio of the original image captured image.