A Satellite Image Reconstruction Method Based on Bayer Template
A satellite image and image technology, applied in the field of satellite image reconstruction, can solve the problems affecting image radiation quality, poor smoothness and continuity, interference with bayer gradient direction judgment and interpolation measurement, etc., to achieve the effect of improving accuracy and correcting errors
Active Publication Date: 2020-07-10
珠海欧比特卫星大数据有限公司
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] Due to the step nature of the image in the Bayer image, the longitudinal stripes also have a step nature, and the smoothness and continuity are not good. It is difficult to eliminate the influence of the longitudinal stripes by using an overall set of statistical parameters.
In addition, vertical stripes will seriously interfere with the gradient direction judgment and interpolation measurement during Bayer interpolation, affecting the final image radiation quality
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0088] The idea, specific structure and technical effects of the present invention will be clearly and completely described below in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, scheme and effect of the present invention.
[0089] It should be noted that, unless otherwise specified, descriptions such as up, down, left, and right used in the present disclosure are only relative to the mutual positional relationship of the components of the present disclosure in the drawings. As used in this disclosure, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. Also, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terms used in the specification herein are for describing specific embodiments only, and are not intended to limit the present ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The technical solution of the present invention includes a satellite image reconstruction method based on the bayer template, which is used to: decompose the original image into sub-blocks according to the bayer template and split it into three sub-block images of R, G and B; for the three sub-block images Establish statistical models respectively and solve for statistical parameters; obtain the updated bayer image based on the statistical parameters and the three sub-blocks R, G, and B; use the statistical parameters to obtain the combined gradient image and direction image; based on the updated bayer image, according to The gradient image and the direction image are combined to complete the reconstruction of the satellite image. The beneficial effects of the present invention are: by splitting sub-block images for separate statistical training, the error of image reconstruction caused by longitudinal stripes can be effectively corrected; by combining statistical parameters and combined gradients, the directional gradient of each pixel position can be accurately judged, which is conducive to improvement Guided interpolation accuracy; through overall modeling and filter design during the processing process, processing efficiency can be effectively improved.
Description
technical field [0001] The invention relates to a satellite image reconstruction method based on a bayer template, belonging to the image technical field. Background technique [0002] In order to alleviate on-satellite storage, reduce data transmission pressure, reduce satellite cost and process difficulty, etc., only one CMOS area array sensor is used in the effective camera payload of the video satellite, and a color filter array——bayer template is placed at the same time. In push-broom imaging, two consecutive rows of the bayer template are selected as line array detectors, and the bayer strip push-broom imaging is realized in combination with satellite flight. The bayer template only gets the gray value of one color at each pixel position, and the other two colors are filtered out. This method can reduce the amount of data by two-thirds, effectively save on-star storage resources, and reduce the pressure on star-ground transmission. However, because the bayer image lo...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G06T5/00
CPCG06T2207/10004G06T2207/20024G06T5/77
Inventor 颜军吴佳奇张强孟进军蒋晓华潘申林范海生
Owner 珠海欧比特卫星大数据有限公司