Projection coding method for surface texture enhancement of aviation luggage in 3D modeling

A surface texture and three-dimensional modeling technology, applied in the field of civil aviation, can solve the problems of increased uncertainty, unsuitable for large-scale promotion and application, high cost of precision optical instruments, etc., and achieve the effect of improving reliability

Active Publication Date: 2018-11-27
CIVIL AVIATION UNIV OF CHINA
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Problems solved by technology

However, due to its randomness, it will cause a certain probability of mismatching, which increases the uncertainty of reconstruction; the projection gray code method performs three-dimensional reconstruction on the surface of a static object, and its reconstruction accuracy is high; the projection is based on the M-array template The spatial do

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  • Projection coding method for surface texture enhancement of aviation luggage in 3D modeling
  • Projection coding method for surface texture enhancement of aviation luggage in 3D modeling
  • Projection coding method for surface texture enhancement of aviation luggage in 3D modeling

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[0061] The projection coding method for enhancing the surface texture of air baggage in 3D modeling provided by the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0062] The projection encoding method for enhancing the surface texture of air luggage in three-dimensional modeling provided by the present invention includes the following steps in order:

[0063] 1) Set the encoding rules that constrain the random encoding of image pixels, and use the projection image pixel encoding rules to encode the pixels of the projection image under the uniqueness constraints of the local feature constraints, and generate high-resolution images for projection onto the air luggage surface. constrained random encoding of images with intensity texture distributions;

[0064] In the stereo matching algorithm, the energy function of pixel p is not only related to itself, but also related to its surrounding 8 neighbor p...

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Abstract

A projection coding method for surface texture enhancement of aviation luggage in 3D modeling is disclosed. The method comprises: setting a coding rule of pixels of a restraint random encoded image, encoding the pixels of a projected image by using the projected image pixel coding rule under a condition of satisfying uniqueness constraint of local feature constraint, to generate a restraint randomencoded image of high-intensity texture distribution projected onto an aviation luggage surface; and using an improved particle swarm optimization algorithm of dynamic speed-dynamic population to optimize and solve a threshold value of gray difference among pixels of the restraint random encoded image, to obtain an optimized restraint random encoded image; projecting the optimized restraint random encoded image to a weak texture aviation luggage surface, and obtaining 3D point cloud information of aviation baggage shapes after 3D reconstruction. The method can improve reliability of stereo matching of aviation luggage and accuracy of 3D reconstruction.

Description

[0001] technology neighborhood [0002] The invention belongs to the technical field of civil aviation, and in particular relates to a projection encoding method for enhancing the surface texture of air luggage in three-dimensional modeling. Background technique [0003] Civil aviation self-service check-in machines have been widely used in major airports, and self-service baggage drop-off systems are rapidly being popularized. This system needs to automatically detect the luggage dropped by passengers and judge whether its size and shape meet the requirements for check-in. It is a reliable solution to perform size detection and shape recognition based on the three-dimensional information of luggage. In the luggage 3D information collection solution, the 3D laser scanner is expensive and the line laser scanning speed is slow. The traditional stereo vision method is not reliable for 3D modeling of weakly textured luggage, and cannot meet the technical or price requirements of t...

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Application Information

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IPC IPC(8): G06T7/593G06T7/80
CPCG06T2207/10028G06T7/593G06T7/85
Inventor 高庆吉彭传波方榕罗其俊
Owner CIVIL AVIATION UNIV OF CHINA
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