US 12,244,923 B2
Control method, camera assembly, and mobile terminal with panchromatic pixels and minimum repeating units
Xin Yang, Guangdong (CN)
Assigned to GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Guangdong (CN)
Filed by GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Guangdong (CN)
Filed on Oct. 27, 2022, as Appl. No. 18/050,339.
Application 18/050,339 is a continuation of application No. PCT/CN2021/088401, filed on Apr. 20, 2021.
Claims priority of application No. 202010440684.2 (CN), filed on May 22, 2020.
Prior Publication US 2023/0086743 A1, Mar. 23, 2023
Int. Cl. H04N 23/67 (2023.01); H04N 9/01 (2023.01); H04N 23/71 (2023.01); H04N 25/133 (2023.01)
CPC H04N 23/672 (2023.01) [H04N 9/01 (2023.01); H04N 23/71 (2023.01); H04N 25/133 (2023.01)] 11 Claims
OG exemplary drawing
 
1. A control method, implemented by an image sensor, the image sensor comprising a two-dimensional pixel array and a lens array, the two-dimensional pixel array comprising a plurality of color pixels and a plurality of panchromatic pixels, the plurality of color pixels having narrower spectral responses than the plurality of panchromatic pixels; the two-dimensional pixel array comprising minimum repeating units, in which the plurality of panchromatic pixels are arranged in a first diagonal direction and the plurality of color pixels are arranged in a second diagonal direction being different from the first diagonal direction; each of the minimum repeating units comprising a plurality of sub-units, and each of the plurality of sub-units comprising at least two color pixels of the plurality of color pixels and at least two panchromatic pixels of the plurality of panchromatic pixels; and the lens array comprising a plurality of lenses, and each of the plurality of lenses covering a corresponding one sub-unit of the plurality of sub-units, the control method comprising:
obtaining phase information of different pixels of the corresponding one sub-unit covered by the lens; and
calculating a phase difference according to the phase information of the different pixels, to perform focusing;
wherein obtaining phase information of different pixels of the corresponding one sub-unit covered by the lens comprises:
obtaining the phase information of a plurality of pixel pairs arranged in a lengthwise direction of the two-dimensional pixel array in the corresponding one sub-unit covered by the lens, each of the plurality of pixel pairs comprising at least one color pixel and at least one panchromatic pixel arranged in a widthwise direction of the two-dimensional pixel array in the corresponding one sub-unit covered by the lens; and
wherein calculating the phase difference according to the phase information of the different pixels, to perform focusing comprises:
calculating the phase difference according to the phase information of the plurality of pixel pairs arranged in the lengthwise direction of the two-dimensional pixel array, to perform focusing;
or
wherein obtaining phase information of different pixels of the corresponding one sub-unit covered by the lens comprises:
obtaining the phase information of a plurality of pixel pairs arranged in a widthwise direction of the two-dimensional pixel array in the corresponding one sub-unit covered by the lens, each of the plurality of pixel pairs comprising at least one color pixel and at least one panchromatic pixel arranged in a lengthwise direction of the two-dimensional pixel array in the corresponding one sub-unit covered by the lens; and
wherein calculating the phase difference according to the phase information of the different pixels, to perform focusing comprises:
calculating the phase difference according to the phase information of the plurality of pixel pairs arranged in the widthwise direction of the two-dimensional pixel array, to perform focusing.