An Image Registration Method for Amplitude-Divided Real-time Polarization Imaging System
A polarization imaging and image registration technology, which is applied in image analysis, image data processing, and measuring the polarization of light, etc., can solve problems such as difficult to extract image features, large differences in gray levels of split optical path images, and inability to complete image registration. Achieving the effect of good image registration work
Active Publication Date: 2020-07-14
DALIAN UNIV OF TECH
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[0006] According to the problems existing in the prior art, the present invention discloses an image registration method for a real-time polarization imaging system with sub-amplitude, which overcomes the difficulty in extracting the features in the image due to the large difference in grayscale between the images of each sub-light path, and thus the inability to Problems with Completing Image Registration
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[0022] In order to make the technical solutions and advantages of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the drawings in the embodiments of the present invention:
[0023] Such as Figure 1-Figure 3 An example of an image registration method for a real-time polarization imaging system with sub-amplitude shown is as follows:
[0024] First, before the amplitude division polarization imaging system 102, a polarizer 101 with a fixed polarization azimuth angle is set. For the convenience of the following description process, the setting parameters in a certain embodiment are selected here to describe the specific implementation process of the present invention. In this embodiment, a polarizing plate with a polarization azimuth angle of 30° is selected, and the natural incident light becomes linearly polarized light of 30° after passing through the 30° pola...
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The present invention discloses an image registration method for a division-of-amplitude real-time polarization imaging system. With the method adopted, the problem that feature information in images cannot be used for registration under certain special conditions can be solved, for example, in a low light condition, when the overall brightness of the images is low, some difficulties will be brought to feature extraction, and at this moment, the feature information in the images cannot be used for the registration of the images; when shot targets are monotonous, and the features of the shot targets are not obvious, and feature extraction will also be difficult, and as a result, sufficient feature information is not available, and the feature information in the images cannot be used for registration; and there are a lot of special working environments which result in the incapability of using feature information in images to complete image registration. The image registration method provided by the invention can well complete image registration under all the above conditions.
Description
technical field [0001] The invention relates to the technical field of image registration, in particular to an image registration method for a real-time polarization imaging system with divided amplitudes. Background technique [0002] With the development of digital image technology, image registration technology has been applied to many fields, especially in the fields of remote sensing images and medical images. In recent years, as the polarization characteristics of light have become an important content of optical research, various polarization detection systems have emerged as the times require. Among them, the amplitude-splitting polarization detection system requires multiple optical paths to collect the same target at the same time. image, and then use multiple images to calculate its polarization information. During the calculation process, it is necessary to perform image registration work on multiple images. [0003] At present, the most widely used image regis...
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IPC IPC(8): G06T7/33G01J4/00
CPCG01J4/00G06T7/33
Inventor 褚金奎林威张然陈永台关乐
Owner DALIAN UNIV OF TECH