Quad color filter array camera sensor configurations

1. A device, comprising:

a camera configured to capture image data, the camera comprising:

a camera sensor including a plurality of tiles of four pixels by four pixels, wherein each tile includes a first sub-tile, a second sub-tile, a third sub-tile, and a fourth sub-tile of two pixels by two pixels; and

a quad color filter array (QCFA) coupled to the camera sensor, the QCFA including a plurality of red color filters, a plurality of green color filters, and a plurality of blue color filters;

wherein a first sub-tile of a first tile includes:

a first phase detection (PD) pixel coupled to a first microlens shared with at least one other pixel of the first tile, wherein the first microlens includes a first orientation with respect to the camera sensor and is shared by the first PD pixel and a second PD pixel of the first sub-tile, and wherein the first PD pixel is coupled to a first green color filter and the second PD pixel is coupled to a second green color filter; and

a first imaging pixel coupled to a second microlens different from the first microlens, wherein the first imaging pixel is coupled to a third green color filter of the QCFA;

wherein the second sub-tile includes:

a third PD pixel coupled to a fourth green color filter and a third microlens, wherein the third microlens includes a second orientation 90 degrees with respect to the first orientation;

a fourth PD pixel coupled to a fifth green color filter and the third microlens shared with the third PD pixel; and

a second imaging pixel coupled to a sixth green color filter of the QCFA; and

a processor implemented in circuitry and coupled to the camera, wherein the processor is configured to:

control one or more first exposure settings of the first PD pixel; and

control one or more second exposure settings of the first imaging pixel independent from the one or more first exposure settings.

2. The device of claim 1 , wherein the processor is further configured to:

receive image data captured using the first PD pixel and a second PD pixel of the first sub-tile sharing the first microlens;

receive image data captured using the first imaging pixel;

detect one or more phases based on the captured image data from the first PD pixel and the second PD pixel; and

generate an image based on the captured image data from the first imaging pixel.

3. The device of claim 2 , wherein the processor is further configured to:

receive image data captured using the third PD pixel of the second sub-tile;

receive image data captured using a fourth PD pixel coupled to the third microlens shared with the third PD pixel;

receive image data captured using the second imaging pixel coupled to a sixth green color filter of the QCFA;

detect one or more phases based on the captured image data from the third PD pixel and the fourth PD pixel; and

generate the image further based on the captured image data from the second imaging pixel.

4. A computer-implemented method, comprising:

controlling, by a processor, one or more first exposure settings of a first phase detection (PD) pixel of a camera sensor of a camera;

controlling, by the processor, one or more second exposure settings of a first imaging pixel of the camera sensor independently from controlling the one or more first exposure settings;

receiving, by the processor, captured image data from the camera coupled to the processor, wherein the camera includes:

the camera sensor including a plurality of tiles of four pixels by four pixels, wherein each tile includes a first sub-tile, a second sub-tile, a third sub-tile, and a fourth sub-tile of two pixels by two pixels; and

a quad color filter array (QCFA) coupled to the camera sensor, the QCFA including a plurality of red color filters, a plurality of green color filters, and a plurality of blue color filters;

wherein a first sub-tile of a first tile includes:

the first PD pixel coupled to a first microlens shared with at least one other pixel of the first tile, wherein the first microlens includes a first orientation with respect to the camera sensor and is shared by the first PD pixel and a second PD pixel of the first sub-tile, and wherein the first PD pixel is coupled to a first green color filter and the second PD pixel is coupled to a second green color filter; and

the first imaging pixel coupled to a second microlens different from the first microlens, wherein the first imaging pixel is coupled to a third green color filter of the QCFA;

wherein the second sub-tile includes:

a third PD pixel coupled to a fourth green color filter and a third microlens, wherein the third microlens includes a second orientation 90 degrees with respect to the first orientation;

a fourth PD pixel coupled to a fifth green color filter and the third microlens shared with the third PD pixel; and

a second imaging pixel coupled to a sixth green color filter of the QCFA.

5. The method of claim 4 , further comprising:

capturing image data by the first PD pixel and a second PD pixel of the first sub-tile sharing the first microlens;

capturing image data by the first imaging pixel;

detecting, by the processor, one or more phases based on the captured image data from the first PD pixel and the second PD pixel; and

generating an image based on the captured image data from the first imaging pixel.

6. The method of claim 5 , further comprising:

capturing image data by the third PD pixel of the second sub-tile;

capturing image data by a fourth PD pixel coupled to the third microlens shared with the third PD pixel;

capturing image data by the second imaging pixel coupled to a sixth green color filter of the QCFA; and

detecting, by the processor, one or more phases based on the captured image data from the third PD pixel and the fourth PD pixel;

wherein generating the image is further based on the captured image data from the second imaging pixel.

7. A non-transitory computer-readable medium storing instructions that, when executed by a processor of a device, cause the device to:

control one or more first exposure settings of a first phase detection (PD) pixel of a camera sensor of a camera;

control one or more second exposure settings of a first imaging pixel of the camera sensor independently from controlling the one or more first exposure settings;

receive, by a processor of the device, captured image data from the camera coupled to the processor, wherein the camera includes:

the camera sensor including a plurality of tiles of four pixels by four pixels, wherein each tile includes a first sub-tile, a second sub-tile, a third sub-tile, and a fourth sub-tile of two pixels by two pixels; and

a quad color filter array (QCFA) coupled to the camera sensor, the QCFA including a plurality of red color filters, a plurality of green color filters, and a plurality of blue color filters;

wherein a first sub-tile of a first tile includes:

the first PD pixel coupled to a first microlens shared with at least one other pixel of the first tile, wherein the first microlens includes a first orientation with respect to the camera sensor and is shared by the first PD pixel and a second PD pixel of the first sub-tile, and wherein the first PD pixel is coupled to a first green color filter and the second PD pixel is coupled to a second green color filter; and

the first imaging pixel coupled to a second microlens different from the first microlens, wherein the first imaging pixel is coupled to a third green color filter of the QCFA;

wherein the second sub-tile includes:

a third PD pixel coupled to a fourth green color filter and a third microlens, wherein the third microlens includes a second orientation 90 degrees with respect to the first orientation;

a fourth PD pixel coupled to a fifth green color filter and the third microlens shared with the third PD pixel; and

a second imaging pixel coupled to a sixth green color filter of the QCFA.

8. The computer-readable medium of claim 7 , wherein execution of the instructions further causes the device to:

capture image data by the first PD pixel and a second PD pixel of the first sub-tile sharing the first microlens;

capture image data by the first imaging pixel;

detect one or more phases based on the captured image data from the first PD pixel and the second PD pixel; and

generate an image based on the captured image data from the first imaging pixel.

9. The computer-readable medium of claim 8 , wherein execution of the instructions further causes the device to:

capture image data by a third PD pixel of the second sub tile;

capture image data by a fourth PD pixel coupled to the third microlens shared with the third PD pixel;

capture image data by the second imaging pixel coupled to a sixth green color filter of the QCFA; and

detect, by the processor, one or more phases based on the captured image data from the third PD pixel and the fourth PD pixel;

wherein generating the image is further based on the captured image data from the second imaging pixel.

10. A device, comprising:

means for controlling one or more first exposure settings of a first phase detection (PD) pixel of a camera sensor of a camera;

means for controlling one or more second exposure settings of a first imaging pixel of the camera sensor independently from controlling the one or more first exposure settings;

means for receiving captured image data from the camera, wherein the camera includes:

the camera sensor including a plurality of tiles of four pixels by four pixels, wherein each tile includes a first sub-tile, a second sub-tile, a third sub-tile, and a fourth sub-tile of two pixels by two pixels; and

a quad color filter array (QCFA) coupled to the camera sensor, the QCFA including a plurality of red color filters, a plurality of green color filters, and a plurality of blue color filters;

wherein a first sub-tile of a first tile includes:

the first PD pixel coupled to a first microlens shared with at least one other pixel of the first tile, wherein the first microlens includes a first orientation with respect to the camera sensor and is shared by the first PD pixel and a second PD pixel of the first sub-tile, and wherein the first PD pixel is coupled to a first green color filter and the second PD pixel is coupled to a second green color filter; and

the first imaging pixel coupled to a second microlens different from the first microlens, wherein the first imaging pixel is coupled to a third green color filter of the QCFA;

wherein the second sub-tile includes:

a third PD pixel coupled to a fourth green color filter and a third microlens, wherein the third microlens includes a second orientation 90 degrees with respect to the first orientation;

a fourth PD pixel coupled to a fifth green color filter and the third microlens shared with the third PD pixel; and

a second imaging pixel coupled to a sixth green color filter of the QCFA.

11. The device of claim 10 , further comprising:

means for receiving image data captured using the first PD pixel and a second PD pixel of the first sub-tile sharing the first microlens;

means for receiving image data captured using the first imaging pixel;

means for detecting one or more phases based on the captured image data from the first PD pixel and the second PD pixel; and

means for generating an image based on the captured image data from the first imaging pixel.

12. The device of claim 11 , further comprising:

means for receiving image data captured using the third PD pixel of the second sub-tile;

means for receiving image data captured using a fourth PD pixel coupled to the third microlens shared with the third PD pixel;

means for receiving image data captured using the second imaging pixel coupled to a sixth green color filter of the QCFA; and

means for detecting one or more phases based on the captured image data from the third PD pixel and the fourth PD pixel;

wherein the means for generating is configured to generate the image further based on the captured image data from the second imaging pixel.