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View field expanding system and method based on two-aperture rotary biprisms

A double-prism and aperture technology, applied in the parts of TV systems, TVs, color TVs, etc., can solve the problem that imaging distortion correction does not meet real-time and high-quality at the same time, and achieve the effect of increased speed

Active Publication Date: 2021-03-09
FUZHOU UNIV
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Problems solved by technology

[0005] In view of this, the object of the present invention is to provide a system and method for expanding the field of view based on a two-aperture rotating double prism, which solves the problem that the imaging distortion correction of the large vertex angle rotating double prism system does not meet the requirements of real-time, high-quality, and splicing at the same time. Ghosting and real-time issues

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  • View field expanding system and method based on two-aperture rotary biprisms
  • View field expanding system and method based on two-aperture rotary biprisms
  • View field expanding system and method based on two-aperture rotary biprisms

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Embodiment Construction

[0055] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0056] Please refer to figure 1 , the present invention provides a field of view expansion system based on two-aperture rotating double prisms, including two identical rotating double prism imaging systems; using an optical platform to ensure that the two rotating double prism systems are on a horizontal line and separated by a certain distance . The structure of each rotating double prism imaging system mainly includes an imaging sensor and a rotating double prism. The rotating double prism is composed of two wedge-shaped prisms of the same model that can rotate coaxially and independently. The apex angle of each prism is 14.85°. The resolution of the imaging sensor is 640×480pixel. The rotating double prism is precisely installed in front of the imaging sensor . Rotating double prism can do relative rotation and overall rotation. For the convenien...

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Abstract

The invention relates to a view field expanding method based on a two-aperture rotary biprism. The method comprises the following steps: S1, establishing a view field expanding system based on the two-aperture rotary biprism; S2, performing multiple times of camera pre-calibration on a single rotary biprism imaging system, and establishing a calibration database; S3, acquiring two paths of video streams in real time through a two-aperture rotary biprism imaging system; S4, distortion correction being carried out on the collected video images; and S5, splicing the video images after distortioncorrection into a video image stream. According to the invention, high-quality distortion correction and splicing of imaging of the rotary biprism system are ensured, the correction and splicing speedis improved, the real-time performance is achieved, and the purpose of large-view-field real-time imaging is achieved.

Description

technical field [0001] The invention relates to the technical field of imaging and image processing, in particular to a field of view expansion system and method based on a two-aperture rotating double prism. Background technique [0002] Large field of view images / videos can bring visual enjoyment to people, and can also provide better spatial information for subsequent target recognition and target tracking. With the continuous advancement of science and technology, the technology of expanding the field of view is gradually becoming mature, and it is increasingly used in security monitoring, remote sensing mapping, unmanned driving and other fields. [0003] The traditional method of obtaining a large field of view is to use an ordinary wide-angle lens or a fisheye lens. In this method, the larger the angle of view of the lens, the more obvious the effect of expanding the field of view, but the distortion caused by the lens is also more serious, and the image quality canno...

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Application Information

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IPC IPC(8): G06T3/40G06T5/00G06T5/50G06T7/80H04N5/232
CPCG06T3/4038G06T5/50G06T7/80G06T2207/10016G06T2207/20221H04N23/69G06T5/80
Inventor 吴衔誉漆勇黄峰吴靖沈英
Owner FUZHOU UNIV
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