System and method for multi-frame temporal de-noising using image alignment

摘要

Methods, devices, and computer program products for multi-frame termporal de-noising using image alignment are describe. In one aspect, a method of capturing an image using a multi-frame temporal de-noising is described. The method includes capturing a plurality of frames and aligning the captured plurality of frames with each other. The method further includes determining a subset of frames of the captured plurality of frames, the subset determined based upon a focus quality of each frame of the plurality of frames. Finally, the method includes combining the subset of frames into a single image using a motion filter to reduce blurriness and ghosting.

主权项

1. An electronic device for capturing an image, the device comprising:
a memory component configured to store frames of image data, each frame having a plurality of pixels; an electronic image sensor coupled to the memory component, the image sensor configured to capture frames of image data comprising a plurality of pixels; a processor in data communication with the memory component, the processor configured to:
capture a plurality of frames of image data using the image sensor and store the plurality of frames in the memory component;align the plurality of frames with each other by adding a first frame of the stored plurality of frames to a stack and calculating a fit between a first center frame at a center position of the stack and a frame adjacent to the first center frame;determine a focus quality of each frame of the plurality of frames during the aligning the plurality of frames;determine a subset of frames of the plurality of frames, the subset of frames determined based upon the determined focus quality of each frame of the plurality of frames; andcombine the subset of frames into a single image using a motion filter to reduce blurriness and ghosting.