A Sea and Air Background Surveillance Video Image Stitching Method Based on Optical Flow Method
A monitoring video and image stitching technology, which is applied to the details of image stitching, image enhancement, image analysis, etc., can solve the problems of image stitching influence, low image quality, and large number of image frames, etc., and achieve fast stitching speed and image quality. Good quality and quick results
Active Publication Date: 2020-07-10
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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The current sea-air background monitoring video images have the following difficulties in image stitching: (1) The resolution of the monitoring video images is low, the image quality is not high, the pixel values are mainly gray values, the colors are not rich enough, and the image features are not good enough. Obvious; (2) There are relatively obvious watermark subtitles loaded on the video image, which has a great impact on image stitching; (3) The sea wave texture and sky texture in the sea and sky background are highly similar and repetitive, making the image features It is not obvious, and the image registration is more difficult; (4) the number of image frames per second of the video is relatively large, and the speed of the image stitching algorithm is high; although there are many patents on video image stitching, but for the above four difficulties Surveillance video of sea and air background, there is no good solution yet
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[0038] In order to facilitate those skilled in the art to understand the technical content of the present invention, the content of the present invention will be further explained below in conjunction with the accompanying drawings.
[0039] The current sea and air background monitoring video image mosaic has the following problems:
[0040] (1) The resolution is low, the image quality is not high, the pixel values are mainly gray values, the colors are not rich enough, and the image features are not obvious;
[0041] (2) There are relatively obvious watermark subtitles loaded on the video image, which has a great impact on image splicing;
[0042] (3) The sea surface wave texture and sky texture in the sea and air background are highly similar and repetitive, which makes image features not obvious and image registration is difficult;
[0043] (4) The number of image frames per second of the video is relatively large, and the speed of the image stitching algorithm is high; ...
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The invention discloses a sea-air background monitoring video image stitching method based on the optical flow method. Aiming at the difficulties existing in the sea-air background monitoring video image stitching technology, the present invention applies the optical flow method to the sea-air background monitoring video image stitching, Utilize the optical flow method to calculate the optical flow field, then use the histogram to count the optical flow values in the x and y directions, and finally calculate the transformation matrix, thereby completing the splicing of the sea and air background monitoring video images; the inventive method has fast splicing speed, The image quality obtained by splicing is good and so on.
Description
technical field [0001] The invention belongs to the field of image splicing, and in particular relates to a sea-air background monitoring video image splicing technology. Background technique [0002] The monitoring system is an important means of security. The monitoring system can provide decision makers with real-time, intuitive, accurate and rich on-site information. The panoramic image stitching of the monitoring video can solve the limitation of the small viewing angle of a single camera, and can be used for observation Provide all-round, seamless real-time monitoring. The current sea-air background monitoring video images have the following difficulties in image stitching: (1) The resolution of the monitoring video images is low, the image quality is not high, the pixel values are mainly gray values, the colors are not rich enough, and the image features are not good enough. Obvious; (2) There are relatively obvious watermark subtitles loaded on the video image, ...
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IPC IPC(8): G06T3/40G06T5/00G06T1/00G06T5/20G06T5/40G06T5/50
CPCG06T1/0021G06T3/4038G06T5/005G06T5/20G06T5/40G06T5/50G06T2200/32G06T2207/10016G06T2207/20032G06T2207/20221
Inventor 何艳敏黄建平甘涛彭真明
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA