Image sensor, application processor and image sensing device

An application processor, configured to:

• receive a first phase detection signal generated from a first phase detection pixel where a first color filter is disposed, and first image data generated from a first normal pixel where the first color filter is disposed together, via a first channel from an image sensor;
• receive a second phase detection signal generated from a second phase detection pixel where a second color filter is disposed, and second image data generated from a second normal pixel where the second color filter is disposed together, via the first channel from the image sensor;
• and
• calculate an overall disparity between the first phase detection signal and the second phase detection signal based on the first phase detection signal, the first image data, the second phase detection signal and the second image data.

An image sensing device, comprising:

• a pixel array including a plurality of normal pixels configured to generate first image data and second image data and a plurality of phase detection groups, wherein each phase detection group includes a first phase detection pixel configured to generate first phase detection data and a second phase detection pixel configured to generate second phase detection data, wherein the first phase detection pixel is disposed adjacent to the second phase detection pixel;
• an image sensor including a color filter array including a plurality of unit groups, wherein each unit group includes a plurality of color filters of a same color arranged in an M×N matrix on the pixel array, where M and N are natural numbers;
• and
• an application processor configured to receive the first image data via a first channel and receive the second image data, the first phase detection data and the second phase detection data via a second channel, and calculate an overall disparity between the first phase detection data and the second phase detection data based on the second image data, the first phase detection data and the second phase detection data.