Method for reconstructing fabric appearance based on multi-view stereo vision

Abstract

The invention provides an appearance three-dimensional reconstruction system based on fabric image characteristics, relates to designing of an acquiring device, initializing of a system, matching and constructing of a multi-view image and other contents, and aims at reconstructing the appearance of fabrics of various types. When in initializing of the system, the works of framing a device, acquiring the image, calibrating through a camera set and correcting the image are performed; the characteristic point detection based on constant dimension characteristic conversion is performed to acquire the original seed points; when in image matching, the BF-NCC is adopted for global image matching; the view difference information is calculated and obtained according to the matching and is converted, so as to obtain the three-dimensional space coordinate information of the fabric; the matching result of a plurality of adjacent groups is utilized for filling missing and lacking points, and therefore, full-view missing-free reconstruction can be achieved.

Description

technical field [0001] The invention relates to the problem of real-time reconstruction of the appearance of fabrics in a wrinkled state, specifically involves the design of acquisition devices, system initialization, multi-eye reconstruction, etc., and finally realizes the three-dimensional reconstruction of the appearance of various types of fabrics. Background technique [0002] Textile appearance properties such as appearance flatness, wrinkle recovery performance and pilling are usually evaluated by human vision. This method is a subjective evaluation, which is affected by individual physiological, psychological and environmental factors, has low precision and poor reproducibility, and is difficult to meet the current detection needs. Therefore, it is necessary to establish relevant rapid, objective and accurate evaluation methods. The common problem faced by the determination of the above properties is that it is necessary to obtain the appearance form in a three-dime...

AI Technical Summary

Problems solved by technology

The common problem faced by the determination of the above properties is: it is necessary to obtain the appearance form in the three-dimensional state

Different ambient light sources will change the detection results and affect the detection results

However, due to the type, voltage, strobe and other factors of the light source during the detection process, the theoretical consistency cannot be achieved. Therefore, it is necessary to solve the problem of environmental light source transformation and enhance adaptability

Photometric stereo vision method This method requires a closed lighting environment, and the conditions of the laboratory need to meet this requirement. It cannot adapt to natural light or outdoor on-site detection, and there is a certain detection error for colored fabrics.

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