Abstract: A multi-frame image fusion method and system, an electronic device, and a storage medium are provided including performing image alignment based on a frame with highest exposure sharpness among a plurality of frames of images, wherein the image alignment includes extracting feature points of each of the plurality of frames to make the plurality of frames have a common spatial layout; calculating a fusion region of each frame based on local light source diffusion weight information in a spatial domain; performing image fusion on the plurality of frames with different exposures based on the fusion region, wherein the image fusion includes fusing the plurality of frames with different exposures into a fused image; and compressing the fused image to a preset dynamic range section. During the image fusion process, the local information is introduced into images to make the fused image possess a higher dynamic range and a lower halo.

Abstract: The present invention discloses system and method for enhancing an image based on non-local features. The invention includes an end-to-end trainable and guided method including feature extraction block, non-local feature generator and non-local feature enhancement block, to deal with low-level image problem by using the non-local feature concept. The invention also deploys a non-local feature merge block to rectify translated features and improve non-local feature further to finally reconstruct the rectified features to form an enhanced image.

Abstract: A drying oven for 3D printing materials includes a base, an upper cover, a rotating shaft assembly and a drying assembly. The drying assembly includes a heating plate and a fan. An air outlet end of the fan faces upward, and the heating plate is arranged above the air outlet end of the fan. An accommodating cavity is provided at a middle of the base, and an air inlet communicating with outside is provided at a bottom of the accommodating cavity. The fan and the heating plate are arranged in the accommodating cavity. The rotating shaft assembly is arranged on a top surface of the base. An air outlet is arranged at an upper end of the upper cover, and the upper cover is configured to cover the base.