An image acquisition method, performed by a camera assembly comprising an image sensor and a processor, wherein the image sensor comprises a pixel array including a plurality of sub-units (UA, UB, UC), each of the plurality of sub-units (UA, UB, UC) comprises at least one transparent photosensitive pixel and at least one color photosensitive pixel (A, B, C), and the color photosensitive pixel (A, B, C) has a narrower spectral response range than the transparent photosensitive pixel; wherein the image acquisition method comprises: acquiring a first color original image and a second color original image by exposing the pixel array, wherein the first color original image is composed of a plurality pieces of first color original image data, each of the plurality pieces of first color original image data is generated by the at least one color photosensitive pixel (A, B, C) of the sub-unit (UA, UB, UC), the second color original image is composed of a plurality pieces of second color original image data; characterized in that, each of the plurality pieces of second color original image data is generated by the at least one transparent photosensitive pixel and the at least one color photosensitive pixel (A, B, C) of the sub-unit (UA, UB, UC); and that the method further comprises: performing, for each of a plurality of color channels, interpolation on the first color original image to acquire a first interpolated image of the color channel, and performing, for at least one of the plurality of color channels, interpolation on the second color original image to acquire a second interpolated image of the at least one color channel, the plurality of color channels comprising a first color channel, a second color channel and a third color channel; fusing the second interpolated image of the at least one color channel with the first interpolated images of the plurality of color channels to obtain fused images of the plurality of color channels; and acquiring a target image based on the fused images of the plurality of color channels. acquiring a first color original image and a second color original image by exposing the pixel array, wherein the first color original image is composed of a plurality pieces of first color original image data, each of the plurality pieces of first color original image data is generated by the at least one color photosensitive pixel (A, B, C) of the sub-unit (UA, UB, UC), the second color original image is composed of a plurality pieces of second color original image data; characterized in that, each of the plurality pieces of second color original image data is generated by the at least one transparent photosensitive pixel and the at least one color photosensitive pixel (A, B, C) of the sub-unit (UA, UB, UC); and that the method further comprises: performing, for each of a plurality of color channels, interpolation on the first color original image to acquire a first interpolated image of the color channel, and performing, for at least one of the plurality of color channels, interpolation on the second color original image to acquire a second interpolated image of the at least one color channel, the plurality of color channels comprising a first color channel, a second color channel and a third color channel; fusing the second interpolated image of the at least one color channel with the first interpolated images of the plurality of color channels to obtain fused images of the plurality of color channels; and acquiring a target image based on the fused images of the plurality of color channels. performing, for each of a plurality of color channels, interpolation on the first color original image to acquire a first interpolated image of the color channel, and performing, for at least one of the plurality of color channels, interpolation on the second color original image to acquire a second interpolated image of the at least one color channel, the plurality of color channels comprising a first color channel, a second color channel and a third color channel; fusing the second interpolated image of the at least one color channel with the first interpolated images of the plurality of color channels to obtain fused images of the plurality of color channels; and acquiring a target image based on the fused images of the plurality of color channels.