A non-ghosting high dynamic range imaging method and device for dual-lens cameras
A high dynamic range, dual-lens technology, used in image communication, color TV components, TV system components, etc., can solve the problem of high dynamic range image ghosting, etc. Effect
Active Publication Date: 2022-03-22
BEIJING UNIV OF POSTS & TELECOMM
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[0005] The purpose of the embodiments of the present invention is to provide a double-lens camera-oriented non-ghosting high dynamic range imaging method and device to solve the problem of ghosting in high dynamic range images of dual-lens cameras
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[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0029] A double-lens camera-oriented non-ghosting high dynamic range imaging method provided by an embodiment of the present invention can be applied to a dual-lens camera or an electronic device that uses a dual-lens to collect images, such as a dual-lens mobile terminal, a wearable device, etc. .
[0030] Such as figure 1 As shown, an embodiment of the present invention provides a process flow of a double-lens camera-oriented non-ghosting high dynamic range...
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Embodiments of the present invention provide a non-ghosting high dynamic range imaging method and device for a dual-lens camera, which acquires a long-exposure image and a short-exposure image collected at the same time by the dual-lens camera; The image and the short-exposure image are input into a main image enhancement model of non-ghosting high dynamic range imaging, so that the main image enhancement model performs the following operations to obtain a high dynamic range image: based on the short-exposure image, the long performing alignment adjustment on the exposure image to obtain an alignment image; based on the alignment image, performing exposure adjustment and noise reduction processing on the short exposure image to obtain a noise reduction image; fusing the short exposure image and the noise reduction image, The high dynamic range image is obtained. Through the solution, a ghost-free high dynamic range image for a dual-lens camera can be obtained, and the imaging quality of the dual-lens camera can be improved.
Description
technical field [0001] The invention relates to the technical field of digital image processing, in particular to a double-lens camera-oriented non-ghosting high dynamic range imaging method and device. Background technique [0002] With the development of technology, dual-lens cameras are increasingly used in mobile terminals. Since mobile terminals are generally consumer-level electronic devices, the dual-lens cameras used for mobile terminals are limited by hardware, and usually can only capture low dynamic range images with a small exposure range, far from high dynamic range images. the quality of. In this regard, in order to improve the imaging quality of the dual-lens camera, two low dynamic range images with different exposures taken at the same time can be used to synthesize a high dynamic range image. [0003] In related technologies, two low dynamic range images can be aligned and adjusted to obtain an aligned image, and the aligned image and the pixel values o...
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IPC IPC(8): H04N5/235H04N5/357
Inventor 董譞许康胡晓妍李伟欣王小捷王蕴红
Owner BEIJING UNIV OF POSTS & TELECOMM