A control method, applied to an imaging device, wherein the imaging device comprises a pixel unit array composed of a plurality of photosensitive pixels, the control method comprises: controlling the photosensitive pixels of the pixel unit array to measure ambient brightness values (101; 201); being characterized in that, the control method further comprises: determining whether a current scene is a backlight scene according to the ambient brightness values measured by the pixel unit array (102; 202), comprising: generating a gray histogram based on gray values corresponding to the ambient brightness values measured by the photosensitive pixels of the pixel unit array, and determining whether the current scene is the backlight scene based on a ratio of the number of photosensitive pixels in each gray scale range of the gray histogram; when the current scene is backlight scene, determining an ambient brightness value of a region in the pixel unit array according to the ambient brightness values measured by respective photosensitive pixels in the pixel unit array, comprising: dividing the photosensitive pixels with similar ambient brightness values in the pixel unit array into a same region, the region comprising at least one photosensitive pixel (103; 203); and controlling the photosensitive pixels in the region to shoot in a shooting mode according to the ambient brightness value of the region and a stability of an imaging object in the region, comprising: obtaining a gain index value of the region according to the ambient brightness value of the region and a preset target brightness value; when the gain index value is less than a preset gain index value, determining whether the imaging object is stable; when the imaging object is unstable, controlling the photosensitive pixels in the region to shoot in a single-frame high dynamic range shooting mode; and when the imaging object is stable, controlling the photosensitive pixels in the region to shoot in a multi-frame high dynamic range shooting mode. controlling the photosensitive pixels of the pixel unit array to measure ambient brightness values (101; 201); being characterized in that, the control method further comprises: determining whether a current scene is a backlight scene according to the ambient brightness values measured by the pixel unit array (102; 202), comprising: generating a gray histogram based on gray values corresponding to the ambient brightness values measured by the photosensitive pixels of the pixel unit array, and determining whether the current scene is the backlight scene based on a ratio of the number of photosensitive pixels in each gray scale range of the gray histogram; when the current scene is backlight scene, determining an ambient brightness value of a region in the pixel unit array according to the ambient brightness values measured by respective photosensitive pixels in the pixel unit array, comprising: dividing the photosensitive pixels with similar ambient brightness values in the pixel unit array into a same region, the region comprising at least one photosensitive pixel (103; 203); and controlling the photosensitive pixels in the region to shoot in a shooting mode according to the ambient brightness value of the region and a stability of an imaging object in the region, comprising: obtaining a gain index value of the region according to the ambient brightness value of the region and a preset target brightness value; when the gain index value is less than a preset gain index value, determining whether the imaging object is stable; when the imaging object is unstable, controlling the photosensitive pixels in the region to shoot in a single-frame high dynamic range shooting mode; and when the imaging object is stable, controlling the photosensitive pixels in the region to shoot in a multi-frame high dynamic range shooting mode. determining whether a current scene is a backlight scene according to the ambient brightness values measured by the pixel unit array (102; 202), comprising: generating a gray histogram based on gray values corresponding to the ambient brightness values measured by the photosensitive pixels of the pixel unit array, and determining whether the current scene is the backlight scene based on a ratio of the number of photosensitive pixels in each gray scale range of the gray histogram; when the current scene is backlight scene, determining an ambient brightness value of a region in the pixel unit array according to the ambient brightness values measured by respective photosensitive pixels in the pixel unit array, comprising: dividing the photosensitive pixels with similar ambient brightness values in the pixel unit array into a same region, the region comprising at least one photosensitive pixel (103; 203); and controlling the photosensitive pixels in the region to shoot in a shooting mode according to the ambient brightness value of the region and a stability of an imaging object in the region, comprising: obtaining a gain index value of the region according to the ambient brightness value of the region and a preset target brightness value; when the gain index value is less than a preset gain index value, determining whether the imaging object is stable; when the imaging object is unstable, controlling the photosensitive pixels in the region to shoot in a single-frame high dynamic range shooting mode; and when the imaging object is stable, controlling the photosensitive pixels in the region to shoot in a multi-frame high dynamic range shooting mode.