Dual sensor imaging system and privacy protection imaging method thereof

A privacy protection imaging method of a dual sensor imaging system, wherein the dual sensor imaging system comprises at least one color sensor, at least one IR sensor, and a processor, the privacy protection imaging method comprising:

• controlling the at least one color sensor and the at least one IR sensor to respectively capture a plurality of color images and a plurality of IR images by adopting a plurality of exposure conditions adapted for an imaging scene;
• adaptively selecting a combination of the color image and the IR image that can reveal details of the imaging scene;
• detecting a feature area with at least one feature of a target of interest in the selected color image according to the at least one feature;
• and
• fusing the selected color image and IR image to generate a fusion image with the details of the imaging scene, and cropping an image of the feature area in the fusion image to be replaced with an image not belonging to the IR image, so as to generate a scene image;
• wherein the step of adaptively selecting the combination of the color image and the IR image that can reveal the details of the imaging scene comprises:
• selecting one of the color images as a reference image according to color details of the color image;
• identifying at least one defect area lacking texture details in the reference image;
• and
• selecting one of the IR images as the IR image for fusion with the reference image according to texture details of an image corresponding to the at least one defect area in each of the IR images.