Method for generating a super-resolution image and related device

An image resolution enhancement system, comprising:

• a processing circuit and a memory unit, wherein the memory unit is configured to store one or more instructions that, when executed by the processing circuit, causes the processing circuit to:
• receive a first low-resolution image and a second low-resolution image of the same scene, wherein the first low-resolution image and the second low-resolution image have a first spatial resolution and are captured simultaneously by a pair of pixel arrays of a common image sensor, wherein the pair of pixel arrays of the image sensor are located as to be diagonally shifted from each other by a sub-pixel increment;
• adaptively enhance the first low-resolution and the second low-resolution image to generate an enhanced first low-resolution image and an enhanced second low-resolution image, respectively;
• extract edge information from the first low-resolution image and the second low-resolution image, respectively;
• map pixels of each of the enhanced first and second low-resolution images to a super-resolution grid having a spatial resolution greater than the first spatial resolution to generate a first intermediate super-resolution image and a second intermediate super-resolution image, respectively;
• combine the first intermediate super-resolution image and the second intermediate super-resolution image to generate a composite super-resolution image;
• map edge information of the first and second low-resolution images to a super-resolution grid having a spatial resolution greater than the first spatial resolution to generate an enhanced super-resolution edge information;
• and
• enhance a contrast of the composite super-resolution image with the enhanced super-resolution edge information to generate a contrast restored super-resolution image.