System and method for generating multi-exposure frames from single input
A technology for generating images, image frames, applied in the field of image capture systems, which can solve problems such as poor performance and increasing the risk of blurred images
Pending Publication Date: 2021-06-18
SAMSUNG ELECTRONICS CO LTD
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Problems solved by technology
However, generating hybrid images from a collection of image frames with different exposures is a challenging process, especially for dynamic scenes
As another example, cameras on mobile electronic devices often perform poorly in low light conditions
Although it is possible to increase the amount of light collected at the image sensor by increasing the exposure time, this also increases the risk of blurry images due to object and camera motion
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[0031] The following discussion is described with reference to the accompanying drawings Figure 1 to Figure 13 and various embodiments of the present disclosure. However, it should be understood that the present disclosure is not limited to these embodiments, and all changes and / or equivalents or substitutions thereto also belong to the scope of the present disclosure. Throughout the specification and drawings, the same or similar reference numerals may be used to refer to the same or similar elements.
[0032] As noted above, many mobile electronic devices, such as smartphones and tablets, include cameras that can be used to capture still and video images, but these cameras suffer from a number of disadvantages. For example, such as when capturing images of natural scenes, these cameras often capture images with underexposed or overexposed areas. As another example, these cameras often perform poorly in low light conditions, and increasing the exposure time also increases ...
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A method includes obtaining, using at least one image sensor of an electronic device, a first image frame of a scene. The method also includes using a convolutional neural network to generate, from the first image frame, multiple second image frames simulated to have different exposures. One or more objects in the scene in each second image frame are aligned with one or more corresponding objects in the scene in at least one other second image frame and are aligned with one or more corresponding objects in the scene in the first image frame. The method further includes blending the multiple second image frames to generate a final image of the scene.
Description
technical field [0001] The present disclosure generally relates to image capture systems. More specifically, the present disclosure relates to a system and method for generating multi-exposure frames from a single input. Background technique [0002] Many mobile electronic devices, such as smartphones and tablets, include cameras that can be used to capture still and video images. Despite their convenience, cameras on mobile electronic devices generally suffer from a number of disadvantages. For example, cameras on mobile electronic devices often capture images with underexposed or overexposed areas, such as when capturing images of natural scenes. This is usually due to the limited dynamic range of the image sensor in the camera. It is possible to capture multiple image frames of a scene and then combine the "best" parts of the image frames to produce a blended image. However, generating hybrid images from a collection of image frames with different exposures is a chall...
Claims
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IPC IPC(8): H04N5/355H04N5/353H04N5/235H04N5/232
CPCH04N23/951H04N23/73H04N23/741H04N25/58H04N23/80G06N3/08G06T5/50G06T2207/10144G06T2207/20084H04N23/70H04N25/57G06N3/045G06T5/94G06T5/60G06T11/60G06T7/11G06N3/02G06T2207/20221G06T2207/20201G06T5/90H04N23/743H04N23/683H04N25/62
Inventor 黎玉龙哈米德·R·谢克约翰·W·格洛茨巴赫泽珊·纳迪尔
Owner SAMSUNG ELECTRONICS CO LTD