US 11,755,271 B2
Stitching display system and image processing method of the same
Dongbo Cao, Beijing (CN); Feng Feng, Beijing (CN); Hua Huang, Beijing (CN); and Xingqun Jiang, Beijing (CN)
Assigned to BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Filed by BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Filed on Jul. 15, 2021, as Appl. No. 17/376,667.
Claims priority of application No. 202010688186.X (CN), filed on Jul. 16, 2020.
Prior Publication US 2022/0019398 A1, Jan. 20, 2022
Int. Cl. G06F 3/14 (2006.01); G06T 7/11 (2017.01); H04N 19/44 (2014.01)
CPC G06F 3/1446 (2013.01) [G06T 7/11 (2017.01); H04N 19/44 (2014.11); G06T 2207/20021 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An image processing method of a stitching display system, the stitching display system including a control device and Q displays, and Q being a positive integer greater than or equal to 2; and the image processing method comprising:
obtaining, by the control device, at least one frame of initial image;
splitting, by the control device, each initial image into Q first sub-images according to a resolution of each initial image and an arrangement of the Q displays;
outputting, by the control device, the Q first sub-images obtained by splitting each initial image to the Q displays; and
displaying, by each display, a first sub-image obtained by the each display according to a physical resolution of the each display;
wherein the displaying, by each display, the first sub-image obtained by the each display according to the physical resolution of the each display includes:
directly displaying, by any of the Q displays, a first sub-image obtained by the any of the Q displays in a case where a resolution of the obtained first sub-image is same as a physical resolution of the any of the Q displays; or
performing, by the any of the Q displays, resolution conversion on the obtained first sub-image according to the physical resolution of the any of the Q displays to obtain a second sub-image in a case where the resolution of the obtained first sub-image is different from the physical resolution of the any of the displays, wherein a resolution of the second sub-image is same as the physical resolution of the any of the Q displays; and
displaying, by the any of the Q displays, the second sub-image;
wherein the resolution of the obtained first sub-image is M× N, and the physical resolution of the any of the Q displays is M0×N0; and
the performing, by the any of the Q displays, the resolution conversion on the obtained first sub-image according to the physical resolution of the any of the Q displays includes:
if M is greater than or equal to M0 (M≥M0) and N is greater than or equal to N0 (N≥N0), calculating R1 and R2, and rounding R1 and R2 to obtain R1′ and R2′; and R1 being equal to

OG Complex Work Unit Math
and R2 being equal to

OG Complex Work Unit Math
dividing pixels in the obtained first sub-image based on R1′ and R2′, so as to obtain M0×N0 pixel groups;
obtaining M0×N0 pieces of second pixel data according to the M0×N0 pixel groups of first pixel data, so as to obtain the second sub-image;
wherein, one pixel group of first pixel data corresponds to one piece of second pixel data; and at least one of the pixel groups includes R1′×R2′ adjacent pixels.