Method for aperture synthesis imaging through multi-view shooting

A technology of aperture synthesis and imaging method, applied in the field of image processing, which can solve the problems of loss of high-frequency detail information of the target image, reduction of synthetic aperture image clarity, etc., to improve image clarity, improve contrast and clarity, and correct installation errors Effect
CN102968784AActive Publication Date: 2013-03-13BEIHANG UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
BEIHANG UNIV
Publication Date
2013-03-13

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Abstract

The invention discloses a method for aperture synthesis imaging through multi-view shooting and belongs to the technical field of imaging processing. The method includes the following steps: step 1, performing coordinate transformation on an original image sequence by adopting plane projective transformation, and performing re-sampling synthesis to focus on an image sequence of an uninterested plane; step 2, recognizing image points focused on the uninterested plane according to a variance threshold value method, and removing image points on an uninterested aim plane pi from the original image sequence; step 3, according to plane projective transformation, performing coordinate transformation on the original image sequence with the uninterested target removed; and step 4, synthesizing all transformed image coordinates, and re-synthesizing an interested target plane through re-sampling to obtain the target image. By means of the method for repeated plane projective transformation, perspective imaging is performed on the interested target plane accurately, installation errors of a plane camera array are revised, and contrast ratio and definition of the interested target are improved.
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Description

technical field

[0001] The invention relates to a method for synthesizing images with accurate apertures by shooting from multiple perspectives, and belongs to the technical field of image processing. Background technique

[0002] In traditional imaging systems, the camera's depth of field increases with increasing focus distance and decreases with increasing aperture. In order to achieve some special shooting effects, such as highlighting an object of interest, a smaller depth-of-field imaging system is required. However, the distance between the camera and the target object often cannot be changed, that is, the focus distance is fixed. In this case, a camera with a large aperture (aperture) can be used to obtain the imaging effect of a small depth of field. The larger the aperture of the camera, the more light it can record from different directions. However, the aperture of the camera should not be too large, otherwise the aberration and distortion of the lens will incr...

Claims

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