US 11,758,277 B2
Method for determining semi-synchronous exposure parameters and electronic device
Kun Tan, Shenzhen (CN); and Yibin Guo, Shenzhen (CN)
Assigned to ARASHI VISION INC., Shenzhen (CN)
Appl. No. 17/615,530
Filed by ARASHI VISION INC., Shenzhen (CN)
PCT Filed May 29, 2020, PCT No. PCT/CN2020/093293
§ 371(c)(1), (2) Date Nov. 30, 2021,
PCT Pub. No. WO2020/239079, PCT Pub. Date Dec. 3, 2020.
Claims priority of application No. 201910471724.7 (CN), filed on May 31, 2019.
Prior Publication US 2022/0321758 A1, Oct. 6, 2022
Int. Cl. H04N 23/73 (2023.01); H04N 23/71 (2023.01)
CPC H04N 23/73 (2023.01) [H04N 23/71 (2023.01)] 19 Claims
OG exemplary drawing
 
1. A method for determining semi-synchronous exposure parameters, comprising steps of:
acquiring first exposure parameters corresponding to each lens;
if it is determined that a preset EV (Exposure Value) limit value is not satisfied according to the first exposure parameters of each lens and adjacent lenses, respectively calculating exposure control parameters of each lens;
calculating second exposure parameters corresponding to each lens according to the exposure control parameters of each lens and the first exposure parameters corresponding to each lens; and
if it is determined that the preset EV limit value is satisfied according to the second exposure parameters of each lens and adjacent lenses, determining the second exposure parameters corresponding to each lens to be semi-synchronized exposure parameters of each lens;
wherein the step of respectively calculating exposure control parameters of each lens, comprises:
obtaining the exposure control parameter of a first lens according to a pre-acquired control coefficient, a first ratio and a second ratio, and a preset first control threshold and second control threshold, wherein the first ratio is a ratio of a target exposure parameter corresponding to the first lens to a maximum exposure parameter of the adjacent lens, and the second ratio is a ratio of the target exposure parameter corresponding to the first lens to a minimum exposure parameter of the adjacent lens.