Image sensor, mobile terminal, and image capturing method

A mobile terminal, comprising an imaging system and an infrared transmit module, wherein the imaging system comprises:

• an image sensor;
• a lens module;
• a driver module configured to drive the lens module to move;
• a filtering module disposed between the lens module and the image sensor;
• an image data processing module connected to the image sensor;
• and
• a display module connected to the image data processing module, wherein
• the infrared transmit module is disposed on a periphery of the lens module;
• wherein the image sensor comprises:
• a pixel array, wherein the pixel array comprises a preset quantity of pixel units arranged in a predetermined manner, the pixel unit comprises a first pixel and a second pixel adjacent to the first pixel, the first pixel comprises a red subpixel, a green subpixel, and a blue subpixel, the second pixel comprises the green subpixel, an infrared subpixel, and at least one of the red subpixel or the blue subpixel, both the first pixel and the second pixel are dual pixel focusing pixels, and each subpixel in the first pixel and the second pixel is arranged in a four-in-one manner, wherein
• a position of the infrared subpixel in the second pixel is the same as a position of the red subpixel, the green subpixel, the blue subpixel, a first combination of subpixels, or a second combination of subpixels in the first pixel, the first combination of subpixels is a combination of half a red subpixel and half a green subpixel that are adjacent to each other, and the second combination of subpixels is a combination of half a green subpixel and half a blue subpixel that are adjacent to each other;
• or
• a position of half the infrared subpixel in the second pixel is the same as a position of half the red subpixel, half the green subpixel, or half the blue subpixel in the first pixel, and half an infrared subpixel in each of two adjacent second pixels is combined to form the entire infrared subpixel.

An image capturing method, applied to a mobile terminal comprising an infrared transmit module and an image sensor,

• wherein the image sensor comprises:
• a pixel array, wherein the pixel array comprises a preset quantity of pixel units arranged in a predetermined manner, the pixel unit comprises a first pixel and a second pixel adjacent to the first pixel, the first pixel comprises a red subpixel, a green subpixel, and a blue subpixel, the second pixel comprises the green subpixel, an infrared subpixel, and at least one of the red subpixel or the blue subpixel, both the first pixel and the second pixel are dual pixel focusing pixels, and each subpixel in the first pixel and the second pixel is arranged in a four-in-one manner, wherein
• a position of the infrared subpixel in the second pixel is the same as a position of the red subpixel, the green subpixel, the blue subpixel, a first combination of subpixels, or a second combination of subpixels in the first pixel, the first combination of subpixels is a combination of half a red subpixel and half a green subpixel that are adjacent to each other, and the second combination of subpixels is a combination of half a green subpixel and half a blue subpixel that are adjacent to each other;
• or
• a position of half the infrared subpixel in the second pixel is the same as a position of half the red subpixel, half the green subpixel, or half the blue subpixel in the first pixel, and half an infrared subpixel in each of two adjacent second pixels is combined to form the entire infrared subpixel;
• wherein the method comprises:
• transmitting infrared light by using the infrared transmit module;
• obtaining a distance between each infrared light reflection point on a to-be-captured object and the mobile terminal based on infrared light reflected by the to-be-captured object;
• and
• obtaining three-dimensional information of the to-be-captured object based on the distance between each infrared light reflection point on the to-be-captured object and the mobile terminal.