Exposure adjustment method and device for panoramic image
A panorama image and adjustment method technology, applied in the field of cameras, can solve the problems of uneven brightness of panoramic images, low exposure dynamic range, low image clarity, etc. the effect of clarity
Active Publication Date: 2022-07-08
ZHEJIANG DAHUA TECH CO LTD
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[0005] Embodiments of the present invention provide a panoramic image exposure adjustment method and device, which are used to solve the problems of uneven screen brightness, low exposure dynamic range, and low image definition of the panoramic image after exposure adjustment.
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[0080] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the present invention. Some embodiments of the technical solution, but not all embodiments. Based on the embodiments recorded in the present document, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the technical solutions of the present invention.
[0081] In order to solve the problems of uneven picture brightness of the panoramic image after exposure adjustment, low exposure dynamic range and low image definition of the panoramic image, an embodiment of the present invention provides an exposure adjustment method for a panoramic image. The method spec...
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The present invention relates to the technical field of cameras, and provides a method and device for adjusting the exposure of a panoramic image, which are used to solve the problems of uneven picture brightness, low dynamic range of exposure and poor image clarity of a panoramic image after exposure adjustment, wherein the method includes: : Obtain the images to be spliced captured by cameras with different shooting angles, and adjust the exposure of each image to be spliced according to the preset initial reference brightness; determine the current reference brightness based on the brightness of each image to be spliced after exposure adjustment, and use the Brightness, perform secondary exposure on part or all of the images to be stitched; finally, stitch each image to be stitched after the secondary exposure adjustment to obtain a panoramic image. Adjust the brightness of each image to be stitched to an acceptable range, and then stitch each exposed image to be stitched to obtain a panoramic image, which avoids the situation that the dark area is too dark and the bright area is overexposed in the panoramic image, and improves the dynamic range of exposure and Image clarity.
Description
technical field [0001] The invention relates to the technical field of cameras, and provides a method and device for adjusting the exposure of panoramic images. Background technique [0002] With the development of camera technology, people put forward higher requirements for the field of view of vehicle cameras, but the maximum field of view of optical lens cameras is less than 180°, and the maximum field of view of non-wide-angle lens cameras is not more than 100°. In order to To meet people's needs for a wider field of view, panoramic vehicle cameras can be used for shooting. The panoramic vehicle-mounted camera is a camera installed with multiple cameras, each of which has a different shooting angle, and a corresponding panoramic image is obtained by stitching together stitched images captured by each camera. [0003] Due to the different shooting angles of each camera on the panoramic vehicle camera, each camera shoots different pictures in the same scene, and obtains ...
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IPC IPC(8): H04N5/235H04N5/232H04N5/217
CPCH04N23/81H04N23/698H04N23/70H04N23/741
Inventor 姜芳芳
Owner ZHEJIANG DAHUA TECH CO LTD