A southwest traditional costume cultural relic multi-spectral multi-dimensional semantic scanning diagnosis device and method

Abstract

This invention relates to the field of non-destructive intelligent inspection technology for cultural relics, specifically a multispectral, multidimensional semantic scanning diagnostic device and method for traditional Southwest Chinese costume artifacts. Addressing the problems of existing equipment easily damaging fragile fabrics, interference from metallic reflections in imaging, and fragmented environmental control, this invention achieves adaptive zero-stress loading through a shape-memory flexible sealing strip and a pressure sensor array; it utilizes three-dimensional structured light feedback to dynamically adjust light source parameters, eliminating specular reflections and exciting deep fluorescence; and it combines microenvironmental inert gas protection with a database of ethnic crafts for four-dimensional data fusion analysis. This invention can accurately distinguish the causes of damage and craftsmanship characteristics, generating repair suggestions. It is suitable for the safe and efficient diagnosis of complex-material traditional Southwest Chinese costume artifacts, effectively avoiding secondary damage caused by improper traditional washing and other operations, providing reliable data support for subsequent scientific restoration, and has significant value for widespread application.

Description

Technical Field

[0001] This invention relates to the field of non-destructive intelligent detection technology for cultural relics, specifically a multispectral and multidimensional semantic scanning diagnostic device and method for traditional costumes from Southwest China. Background Technology

[0002] Traditional costumes of ethnic minorities in Southwest China are an important carrier of traditional Chinese culture. Their fabrics are mostly dyed with natural plant or mineral dyes and are complemented by unique weaving techniques (such as cross-stitch, batik, and embroidery) and metal decorations. Due to their age, these artifacts face serious natural aging problems, such as dye fading, fiber embrittlement, mildew, and breakage caused by mechanical stress. In order to conduct non-contact and non-destructive scientific diagnosis and protection of these precious artifacts, multispectral imaging technology has been widely used in the field of artifact testing.

[0003] However, existing multispectral scanning diagnostic equipment for cultural relics has significant technical limitations in practical applications, and the existing technology mainly lacks an adaptive coupling mechanism for the complex surface morphology and microenvironment sensitivity of costume artifacts from ethnic minorities in Southwest China.

[0004] On the one hand, existing equipment is mostly rigid structure or fixed optical path design, which cannot dynamically adjust the sealing state and illumination angle according to the irregular contours of the surface of cultural relics (such as folds and three-dimensional patterns). This makes it easy to damage fragile fabrics due to excessive physical contact pressure during the scanning process, or to produce strong specular reflection due to improper illumination angle (especially for metal decoration areas on clothing), thereby obscuring the underlying chemical degradation information.

[0005] On the other hand, existing systems typically separate optical acquisition from environmental control, making it impossible to adjust the microenvironment (such as an inert gas atmosphere) and light source parameters in real time based on the contact pressure distribution data on the surface of the artifact. This makes it difficult to obtain high-quality multidimensional semantic data while ensuring the absolute safety of the artifact when scanning highly sensitive artifacts. Consequently, subsequent analysis of the causes of damage based on specific process parameter libraries lacks a reliable data foundation and cannot effectively distinguish between natural aging traces and abnormal damage.

[0006] Therefore, developing a device and method that can adaptively adjust sealing and lighting according to the surface morphology of cultural relics, and can link microenvironment control in real time to ensure the safety of cultural relics, and can deeply integrate with a specific process parameter library for accurate diagnosis, is a key technical problem that urgently needs to be solved in this field. Summary of the Invention

[0007] (a) Technical problems to be solved

[0008] To address the shortcomings of existing technologies, this invention provides a multispectral, multidimensional semantic scanning diagnostic device and method for traditional costume artifacts from Southwest China. It possesses advantages such as an adaptive deformation mechanism based on a pressure sensing array and a shape-memory flexible sealing strip to eliminate mechanical stress damage, and dynamic adjustment of light source parameters using three-dimensional structured light feedback to accurately acquire deep feature information of metal and dyed areas. This solves the problems in existing technologies where rigid equipment easily damages fragile fabrics, strong reflections interfere with chemical information acquisition, and the separation of optical detection and environmental safety control prevents high-precision non-destructive diagnosis while ensuring the absolute safety of the artifacts.

[0009] (II) Technical Solution

[0010] To achieve the above objectives, the present invention provides the following technical solution: a multispectral and multidimensional semantic scanning diagnostic device for traditional costume artifacts from Southwest China, comprising an adaptive cabin module, a dynamic spectral control module, a multidimensional sensing and acquisition module, and a microenvironment semantic processing module, wherein each module is electrically connected and works collaboratively; wherein,

[0011] The adaptive cabin module includes a portable cabin, a flexible sealing unit, and a safety monitoring unit. The portable cabin defines a detection chamber. The flexible sealing unit is a multi-segment flexible sealing strip arranged circumferentially along the inner wall of the detection chamber. The flexible sealing strip is made of shape memory elastic material. The safety monitoring unit is a pressure sensor array uniformly arranged inside the flexible sealing strip. The pressure sensor array is used to collect contact pressure distribution data on the surface of the artifact in real time.

[0012] The dynamic spectral control module is fixedly installed on the top of the detection chamber and includes a tunable light source unit and a filter adjustment unit; the tunable light source unit is a tunable light source array, and the filter adjustment unit is a variable focus filter wheel, wherein the optical axis of the tunable light source array and the optical axis of the variable focus filter wheel are collinear;

[0013] A multidimensional sensing and acquisition module is coaxially integrated below the dynamic spectral control module, and includes a three-dimensional topography acquisition unit and a multispectral acquisition unit; the three-dimensional topography acquisition unit is a three-dimensional structured light camera, and the multispectral acquisition unit is a pushbroom multispectral camera, wherein the projection optical path of the three-dimensional structured light camera and the imaging optical path of the pushbroom multispectral camera coincide.

[0014] The microenvironment semantic processing module is electrically connected to the adaptive cabin module, the dynamic spectrum control module, and the multi-dimensional sensing acquisition module, respectively. The microenvironment semantic processing module is configured to receive contact pressure distribution data collected by the pressure sensing array, control the deformation state of the flexible sealing strip to conform to the outline of the cultural relic, and determine whether to trigger a shutdown command based on the contact pressure distribution data.

[0015] Preferably, the control logic of the dynamic spectral modulation module is as follows:

[0016] The tunable light source array emits spectral signals covering the ultraviolet to short-wave infrared band, and the variable focus filter wheel switches the center wavelength of the filter in real time according to the reflectance distribution map of the surface area of ​​the cultural relic fed back by the three-dimensional structured light camera.

[0017] When the reflectivity of the metal decorative area is detected to be higher than a preset threshold, the variable focus filter wheel switches to the short-wave ultraviolet band, and the tunable light source array simultaneously turns on the polarization emission mode.

[0018] When the reflectance of the plant staining area is found to be lower than a preset threshold, the variable focus filter wheel locks to the characteristic absorption band corresponding to that area and extends the exposure integration time of the tunable light source array.

[0019] Preferably, the multidimensional sensing acquisition module has a high-precision spatial registration mechanism, and the structured light pattern projected by the three-dimensional structured light camera is synchronized with the pixel row scanning frequency of the pushbroom multispectral camera;

[0020] The pushbroom multispectral camera's detection units correspond sequentially to the ultraviolet band, visible light band, near-infrared band, and short-wave infrared band. Furthermore, the pixel size of the pushbroom multispectral camera is smaller than the reconstruction accuracy of the 3D structured light camera, ensuring that the generated 3D mesh model can be mapped to every pixel of the multispectral data.

[0021] Preferably, the adaptive cabin module further includes a microenvironment control unit and an alarm unit;

[0022] The inner wall of the portable cabin is coated with a wave-absorbing coating, and the pressure sensor array is distributed on the inner side of the flexible sealing strip.

[0023] The alarm unit is an audible and visual alarm component installed on the outer wall of the portable cabin. The audible and visual alarm component includes a buzzer and a warning light, and the buzzer and warning light are electrically connected to the micro-environment semantic processing module.

[0024] The microenvironment control unit includes an inert gas supply pipeline, a temperature and humidity sensor, and an oxygen concentration sensor. The inert gas supply pipeline is connected to the bottom of the detection chamber, and the temperature and humidity sensor and the oxygen concentration sensor are both located on the inner wall of the detection chamber. The temperature and humidity sensor, the oxygen concentration sensor, and the inert gas supply pipeline are all electrically connected to the microenvironment semantic processing module.

[0025] When the oxygen concentration sensor detects that the oxygen content in the chamber exceeds a preset safety threshold, the microenvironment semantic processing module controls the inert gas supply pipeline to inject inert gas into the bottom of the detection chamber.

[0026] Preferably, the microenvironment semantic processing module includes a central processing unit and a storage unit, wherein the storage unit is electrically connected to the central processing unit;

[0027] The storage unit contains a database of weaving process parameters unique to the costumes of ethnic minorities in Southwest China, a database of chemical degradation characteristics of natural dyes, and a database of historical transmission records.

[0028] The central processing unit is electrically connected to the multidimensional sensing acquisition module and the storage unit, respectively. It is used to receive multispectral data from the multidimensional sensing acquisition module and call the natural dye chemical degradation characteristic library and weaving process parameter library stored in the storage unit to process the multispectral data to generate diagnostic results.

[0029] A multispectral, multidimensional semantic scanning diagnostic method for traditional costume artifacts from Southwest China includes the following steps:

[0030] Step S1: Place the Southwest traditional costume artifact in the detection chamber of the adaptive cabin module, start the inert gas supply pipeline of the microenvironment control unit; use the pressure sensor array of the safety monitoring unit to monitor the contact pressure between the artifact and the flexible sealing strip, and control the flexible sealing strip to undergo elastic deformation until the artifact is subjected to uniform force and does not exceed the preset safety threshold.

[0031] Step S2: Drive the 3D structured light camera of the multi-dimensional sensing acquisition module to project the coded grating, acquire the depth information of the artifact surface and construct a micron-level 3D mesh model; automatically divide the artifact surface into metal inlay area, plant dyeing area and fabric fold area based on curvature change;

[0032] Step S3: Based on the region type segmented in Step S2, dynamically adjust the parameters of the dynamic spectral control module: For the metal mosaic region, calculate the Fresnel reflectance coefficient of the surface of the region, adjust the incident angle of the tunable light source array and the receiving angle of the pushbroom multispectral camera to counteract specular reflection, and switch to the short-wave ultraviolet band to excite the fluorescence of the underlying fibers; For the plant staining region, lock the specific characteristic absorption band and extend the integration time; Simultaneously acquire multispectral image sequences and three-dimensional morphology data;

[0033] Step S4: Perform pixel-level spatial registration on the acquired multispectral image sequence and three-dimensional topography data, and bind the spatial coordinates (x, y, z) of each pixel to its corresponding spectral feature (λ) to generate a four-dimensional diagnostic voxel dataset.

[0034] Step S5: Input the four-dimensional diagnostic voxel dataset into the microenvironment semantic processing module, use the plant dye spectral fingerprint library in the storage unit to identify the degree of dye oxidation, combine the stress concentration area in the three-dimensional model to analyze the coupling relationship between mechanical damage and chemical degradation, distinguish between natural aging traces and abnormal diseases, and generate a diagnostic report containing disease level, cause analysis and repair suggestions.

[0035] Preferably, the processing of the metal inlay area in step 3 specifically includes:

[0036] Step 31: ;

[0037] Step 32: ;

[0038] Step 33: Switch the tunable light source array to the 380nm-450nm band to excite the fabric fibers located under the metal decorative layer to generate characteristic fluorescence signals and use these fluorescence signals as diagnostic criteria.

[0039] Preferably, the semantic association diagnosis in step 5 specifically includes:

[0040] Step 51: Extract the characteristic absorption peak positions and half-width at half-maximum (WHM) of the plant dye region from the four-dimensional diagnostic voxel data, and perform convolution matching with the standard spectral curves in the natural dye chemical degradation feature library.

[0041] Step 52: Read the stress tensor value deep in the fabric folds in the 3D model. If the stress tensor value exceeds the preset critical value and is accompanied by an enhancement of the spectral characteristics of cellulose hydrolysis products, it is determined to be chemical degradation induced by mechanical stress.

[0042] Step 53: If abnormal absorption in a specific band is detected but it conforms to the process staining characteristic parameters of a specific branch of ethnic minorities in Southwest China, it is marked as normal process color difference and is not included in the disease statistics.

[0043] Preferably, in step 1, when the pressure sensing array detects a pressure value exceeding 0.1 N / cm² at any point, the microenvironment semantic processing module immediately controls the inert gas supply pipeline to stop operating and controls the flexible sealing strip to retract. At the same time, it controls the buzzer in the audible and visual alarm component on the adaptive cabin module to emit an audible warning signal and controls the warning light to flash.

[0044] (III) Beneficial Effects

[0045] Compared with existing technologies, this invention provides a multispectral, multidimensional semantic scanning diagnostic device and method for traditional costume artifacts from Southwest China, which has the following beneficial effects:

[0046] 1. This invention introduces a dynamic spectral control strategy based on three-dimensional structured light feedback, which can automatically identify the region type: In the metallic region, by calculating the Fresnel reflection coefficient and adjusting the incident angle to the Brewster angle condition, combined with the polarization emission mode, the specular noise is effectively suppressed, while the fluorescence of the blocked underlying fibers is excited using the short-wave ultraviolet band; In the plant dyeing region, the characteristic absorption band is automatically locked and the integration time is extended; This strategy successfully solves the signal crosstalk under the coexistence of multi-level materials and realizes the accurate extraction of chemical degradation traces inside the fabric.

[0047] 2. This invention constructs an active protection mechanism by setting up a flexible sealing strip made of shape memory elastic material and a pressure sensing array in real time. The system can dynamically adjust the deformation of the sealing strip according to the contour of the cultural relic to evenly distribute the contact force. Once the local pressure is detected to exceed the safety threshold (such as 0.1N / cm²), the system will immediately trigger a shutdown and retract the sealing strip, ensuring that the physical contact is always within an absolutely safe range when scanning cultural relics with complex curved surfaces.

[0048] 3. This invention deeply integrates inert gas microenvironment control, high-precision spatial registration, and a database of specific ethnic crafts. On the one hand, it monitors oxygen concentration in real time and automatically injects inert gas to prevent secondary oxidation damage during the scanning process. On the other hand, it incorporates a library of weaving process parameters and dye degradation characteristics unique to the clothing of ethnic minorities in Southwest China, enabling convolution matching of four-dimensional diagnostic data with the dyeing characteristics of specific lineages. This effectively distinguishes between natural aging marks and normal process color differences, and can also combine stress concentration area analysis to accurately determine the coupling causes of mechanical damage and chemical degradation, generating a high-quality diagnostic report containing repair suggestions. Attached Figure Description

[0049] Figure 1 This is a schematic diagram of the multispectral and multidimensional semantic scanning diagnostic device for traditional costumes and cultural relics in Southwest China according to the present invention.

[0050] Figure 2 This is a flowchart of the multispectral and multidimensional semantic scanning diagnostic method for traditional costume artifacts in Southwest China, as described in this invention. Detailed Implementation

[0051] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0052] Example 1

[0053] like Figure 1 As shown, a multispectral and multidimensional semantic scanning diagnostic device for traditional costume artifacts from Southwest China is presented. This device aims to solve technical problems such as the rigid structure of existing artifact testing equipment being prone to damaging fragile fabrics, optical signal crosstalk caused by complex materials (such as the coexistence of metal and dyed areas), and the disconnect between environmental control and optical acquisition. The device mainly consists of four core parts: an adaptive cabin module, a dynamic spectral control module, a multidimensional sensing acquisition module, and a microenvironment semantic processing module. The modules are electrically connected through a high-speed bus or wireless communication link to realize real-time data transmission and coordinated execution of control commands.

[0054] In this embodiment, the adaptive cabin module includes a portable cabin, a flexible sealing unit, and a safety monitoring unit. The portable cabin is made of a lightweight, high-strength aerospace aluminum alloy frame wrapped with high-density absorbing material, which defines a sealed detection chamber inside. The inner wall of the detection chamber is coated with a special microwave / infrared absorbing coating to eliminate external stray light interference and cabin reflection noise, ensuring a clean imaging background.

[0055] The flexible sealing unit consists of a multi-segment flexible sealing strip arranged around the circumference of the inner wall of the detection chamber. The flexible sealing strip is made of shape memory elastic material (such as shape memory polymer SMP or high elastic silicone-based composite material), which has excellent flexibility and resilience. In its natural state, the flexible sealing strip is in a contracted state. When subjected to thermal excitation or electrical signal drive, it can undergo controllable deformation to adapt to the contours of cultural relics of different shapes.

[0056] The safety monitoring unit includes a high-density pressure sensor array (e.g., a flexible thin-film sensor based on the piezoresistive effect) uniformly embedded on the inner surface of the flexible sealing strip. This pressure sensor array can collect pressure distribution data at the contact point between the artifact surface and the flexible sealing strip with millimeter-level accuracy in real time, forming a two-dimensional pressure thermogram.

[0057] The detection chamber also integrates a microenvironment control unit and an alarm unit. The microenvironment control unit includes an inert gas supply pipeline (connected to the bottom of the chamber), a temperature and humidity sensor, and an oxygen concentration sensor. When the oxygen concentration sensor detects that the oxygen content in the chamber exceeds a preset safety threshold (e.g., >5%), the central processing unit automatically controls the solenoid valve to open and inject nitrogen or argon into the bottom of the detection chamber to create an inert protective atmosphere. The alarm unit is an audible and visual alarm component located on the outer wall of the portable chamber, including a buzzer and a warning light. Once an abnormality is detected (e.g., excessive pressure or excessive oxygen), an audible and visual alarm is immediately triggered.

[0058] In this embodiment, the dynamic spectral control module is fixedly installed at the top center of the detection chamber and is the core component for acquiring high-quality spectral data. It includes a tunable light source unit and a filter adjustment unit, wherein:

[0059] The tunable light source unit includes a broadband tunable light source array whose emission spectrum covers the ultraviolet (UV), visible (VIS), near-infrared (NIR) to short-wave infrared (SWIR) bands (wavelength range of approximately 250nm-2500nm); the light source has polarization modulation function and can output linearly polarized light or circularly polarized light to cope with the reflection characteristics of different materials.

[0060] The filter adjustment unit is located at the end of the light source optical axis and is a high-speed rotating variable focus filter wheel. Multiple narrowband filters are integrated on the filter wheel, and the center wavelength covers key characteristic bands (such as the characteristic absorption peaks of plant dyes and the fluorescence excitation bands of metal oxide layers).

[0061] Furthermore, the optical axis of the tunable light source array is strictly collinear with the optical axis of the variable focal length filter wheel, ensuring that the emitted light energy is concentrated and the spectrum is pure.

[0062] In this embodiment, the multidimensional sensing acquisition module is coaxially integrated directly below the dynamic spectral control module, responsible for synchronously acquiring the three-dimensional morphology and multispectral information of the artifact, including a three-dimensional morphology acquisition unit and a multispectral acquisition unit, wherein:

[0063] The three-dimensional topography acquisition unit uses a high-precision structured light camera to project encoded sinusoidal stripes or Gray code patterns. The high-precision structured light camera has sub-micron level depth reconstruction capabilities, which can quickly construct a micron-level three-dimensional mesh model of the artifact surface.

[0064] The multispectral acquisition unit uses a pushbroom multispectral camera, whose detection units correspond to the ultraviolet, visible, near-infrared and short-wave infrared bands in sequence.

[0065] Furthermore, the projection optical path of the 3D structured light camera and the imaging optical path of the pushbroom multispectral camera are physically overlapped. Through precise mechanical structure design, the pixel row scanning frequency of the two is strictly synchronized.

[0066] In particular, the pixel size of the pushbroom multispectral camera is designed to be smaller than that of the 3D structured light camera, thereby ensuring that the generated 3D mesh model can be losslessly mapped to every pixel of the multispectral data, achieving true pixel-level spatial registration.

[0067] In this embodiment, the micro-environment semantic processing module is the "brain" of the entire system, responsible for data fusion, logical judgment, and decision control; it includes a central processing unit (CPU) and a storage unit, wherein:

[0068] The central processing unit (CPU) uses a high-performance embedded processor or a multi-core ARM architecture chip, which has powerful parallel computing capabilities for real-time processing of massive point cloud data and spectral images.

[0069] The storage unit has built-in high-capacity non-volatile memory and comes pre-loaded with three core databases, including the following:

[0070] The Southwest Ethnic Minorities Costume Weaving Technique Parameter Database includes the texture characteristics, warp and weft density, and color blending rules of specific techniques such as batik, cross-stitch, embroidery, and tie-dye.

[0071] Natural Dyes Chemical Degradation Feature Library: Includes spectral fingerprints and chemical degradation product characteristics of common plant dyes such as indigo, madder, and gardenia at different aging stages.

[0072] Historical Records Database: Information on the excavation, restoration history, and known damage cases of related cultural relics.

[0073] Furthermore, the microenvironment semantic processing module is configured to receive contact pressure distribution data collected by the pressure sensor array, control the deformation state of the flexible sealing strip to conform to the outline of the artifact, and determine whether to trigger a stop command based on the contact pressure distribution data. At the same time, it receives multispectral data from the multidimensional sensor acquisition module, calls the feature library in the storage unit to perform in-depth processing on the data to generate diagnostic results.

[0074] Example 2

[0075] like Figure 2 As shown, this embodiment provides a multispectral, multidimensional semantic scanning diagnostic method for traditional costume artifacts from Southwest China. First, the state of the artifact is perceived through flexible contact. Then, the illumination strategy is dynamically adjusted based on material characteristics. Finally, intelligent judgment is performed using a process knowledge base. This operational mode, shifting from passive acquisition to active adaptation, not only completely avoids physical damage during the scanning process but also ensures the accuracy and depth of the detection results. The specific steps are as follows:

[0076] Step S1: Carefully place the Southwest traditional costume artifact in the center of the detection chamber of the adaptive cabin module; activate the inert gas supply pipeline to inject inert gas into the chamber for initial replacement; then, activate the pressure sensor array of the safety monitoring unit to monitor the contact pressure between the artifact and the flexible sealing strip in real time; the micro-environment semantic processing module controls the flexible sealing strip to undergo elastic deformation using shape memory characteristics based on the collected pressure distribution data, gradually conforming to the contour of the artifact; the system continues to monitor until the artifact is subjected to uniform force, and the pressure value at any point does not exceed the preset safety threshold (e.g., 0.1 N / cm²); if local pressure exceeds the standard, immediately trigger a shutdown command and control the flexible sealing strip to retract, while simultaneously activating the audible and visual alarm components.

[0077] Step S2: Drive the 3D structured light camera in the multi-dimensional sensing acquisition module to project the coded grating, quickly scan the surface of the cultural relic, obtain high-precision depth information and construct a micron-level 3D mesh model; the algorithm automatically divides the surface of the cultural relic into three typical regions based on the curvature change characteristics of the model surface: metal inlay area (high curvature, high reflection), plant dyeing area (low curvature, obvious feature absorption) and fabric fold area (complex curved surface, stress concentration).

[0078] Step S3: Based on the region type segmented in Step S2, the microenvironment semantic processing module dynamically adjusts the parameters of the dynamic spectral control module:

[0079] For the metal inlay area: if the reflectivity of the area is higher than the preset threshold, control the variable focus filter wheel to switch to the short-wave ultraviolet band (380nm-450nm), and at the same time, the tunable light source array is turned on to activate the polarization emission mode; use polarized light to suppress specular reflection and excite the fabric fibers located under the metal decorative layer to generate characteristic fluorescence signals.

[0080] For plant staining areas: identify areas where reflectance is below a preset threshold, lock specific characteristic absorption bands (such as the absorption peak of indigo near 660nm), and lock the filter wheel to this band; at the same time, extend the exposure integration time of the tunable light source array to enhance the signal-to-noise ratio of weak signals.

[0081] Synchronous acquisition: After adjusting the above parameters, multispectral image sequences and three-dimensional topographic data are acquired simultaneously.

[0082] Step S4: Perform pixel-level spatial registration between the acquired multispectral image sequence and the 3D topography data. Using the synchronization signal provided by the high-precision spatial registration mechanism, bind the 3D spatial coordinates (x, y, z) of each pixel to its corresponding continuous spectral feature (λ) to generate a four-dimensional diagnostic voxel dataset containing geometric and spectral information.

[0083] Step S5: Input the four-dimensional diagnostic voxel dataset into the microenvironment semantic processing module and perform deep semantic analysis:

[0084] Dye oxidation degree identification: The characteristic absorption peak positions and half-widths of the plant dye regions are extracted and convolved with the "natural dye chemical degradation feature library" in the storage unit to identify the aging degree of the dye.

[0085] Coupling analysis: Read the stress tensor value deep in the fabric folds in the 3D model; if the stress tensor value exceeds the preset critical value and is accompanied by an enhancement of the spectral characteristics of cellulose hydrolysis products, it is determined to be "mechanical stress-induced chemical degradation".

[0086] Process identification: If abnormal absorption in a specific band is detected, but it conforms to the process dyeing characteristic parameters of a specific branch in the "Southwest Ethnic Minority Clothing Weaving Process Parameter Database" (such as the anti-dyeing boundary characteristics of batik), it is marked as normal process color difference and is not included in the defect statistics to avoid misjudgment.

[0087] Finally, the system automatically generates a comprehensive diagnostic report that includes the severity of the disease, causal analysis, and specific repair recommendations.

[0088] Example 3

[0089] To further clarify the specific application value of this invention in actual cultural relic protection work, this embodiment selects a Qing Dynasty Miao ethnic minority "Hundred Birds Robe" with typical characteristics of Southwest China's ethnic minority clothing as the test object. The fabric of this cultural relic is natural linen, dyed using traditional plant indigo dyeing techniques, and the collar and cuffs are inlaid with a large number of silver bubbles and silver pieces. Preliminary investigation revealed that the cultural relic has severe fading, localized mold erosion, and due to long-term folding and storage, the fibers show obvious risks of brittleness and breakage. For this type of cultural relic with "a combination of soft and hard materials (fabric + metal)," "coexistence of multiple materials," and "complex damage," this embodiment describes in detail the entire process of testing and diagnosis using the above-mentioned device.

[0090] First, the operator carefully lays the Hundred Birds Garment flat in the center of the detection chamber of the adaptive cabin module. After the system is started, the microenvironment semantic processing module first controls the inert gas supply pipeline to inject nitrogen into the chamber, reducing the oxygen concentration below the safe threshold and creating an inert protective atmosphere. Then, the flexible sealing unit starts to work: the built-in pressure sensor array monitors the contact pressure in real time. When uneven force is detected at the edge of the garment or the protrusion of the silver ornament, the shape memory elastic material sealing strip undergoes microscopic deformation under the drive of electrical signals, gently wrapping the irregular contour of the cultural relic. This process completely replaces the traditional rigid clamp fixing method, effectively avoiding the deformation of the silver ornament or secondary damage to the fragile linen caused by mechanical compression, and realizing the "zero stress" loading of the cultural relic.

[0091] After confirming that the artifact is in stable condition, the multi-dimensional sensing acquisition module initiates the intelligent scanning program, and the dynamic spectral control module adjusts its working mode based on real-time feedback.

[0092] For the metal decorative area: When the 3D structured light camera detects that the silver bubble area of ​​the collar and cuff has extremely high reflectivity, the system automatically triggers the dynamic spectral strategy, switches the tunable light source to a specific angle (simulating Brewster angle incidence), and turns on the polarization emission mode; this operation successfully suppresses the specular reflection interference of the metal surface, making the blue dye residue traces located under the silver ornament, which were originally covered by strong reflection, clearly visible.

[0093] For the disease analysis area: When scanning the collar mold spot area, the system automatically locks the ultraviolet (UV) band based on the pre-set natural dye chemical degradation feature library; under this band, the mold spot is excited by a unique fluorescence reaction, and the push-broom multispectral camera captures the deep penetration signal that is invisible to the naked eye. The system then compares the absorption spectrum of the area with historical data to confirm that the mold hyphae have penetrated into the fiber interior, rather than just staying on the surface.

[0094] After data acquisition, the microenvironment semantic processing module enters the deep analysis stage. The system performs pixel-level registration of the three-dimensional morphology data and multispectral data to construct a four-dimensional dataset containing geometric information and chemical composition. The algorithm overlays a stress distribution heatmap on the three-dimensional model and finds that the high incidence of mildew spots on the collar corresponds precisely to the stress concentration area at the fabric folds. At the same time, spectral analysis shows that the hydrolysis products of starch slurry in this area are significant. Based on this, the system calls the "weaving process parameter library" to eliminate interference from normal process color difference and finally determines that the cause of the disease is not simply chemical aging, but "mildew erosion under accelerated mechanical stress".

[0095] Based on the above accurate diagnosis, the system automatically generated a detailed diagnostic report. The report clearly pointed out the underlying causes of the disease and provided targeted repair suggestions: it recommended to adopt a solution of "local inert gas fumigation to remove mold" combined with "flexible support and flattening" instead of the traditional full washing. This solution not only removes the threat of mold, but also avoids the irreversible damage that washing may cause to fragile linen and silver jewelry.

[0096] Through the application verification of this embodiment, the device and method proposed in this invention have successfully solved three major problems of traditional scanning equipment when dealing with cultural relics made of complex materials: first, it overcomes the interference of metal reflection on imaging; second, it realizes non-destructive contact fixation of fragile cultural relics; and third, it accurately distinguishes the causes of damage through multi-dimensional data fusion. This not only greatly improves the accuracy and efficiency of cultural relic detection, but also provides reliable data support for subsequent scientific restoration, and has significant value for promotion and application.

[0097] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0098] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multispectral, multidimensional semantic scanning diagnostic device for traditional costume artifacts from Southwest China, characterized in that: It includes an adaptive cabin module, a dynamic spectral control module, a multi-dimensional sensing and acquisition module, and a microenvironment semantic processing module. These modules are electrically connected and work collaboratively. The adaptive cabin module includes a portable cabin, a flexible sealing unit, and a safety monitoring unit. The portable cabin defines a detection chamber. The flexible sealing unit is a multi-segment flexible sealing strip arranged circumferentially along the inner wall of the detection chamber. The flexible sealing strip is made of shape memory elastic material. The safety monitoring unit is a pressure sensor array uniformly arranged inside the flexible sealing strip. The pressure sensor array is used to collect contact pressure distribution data on the surface of the artifact in real time. The dynamic spectral control module is fixedly installed on the top of the detection chamber and includes a tunable light source unit and a filter adjustment unit; the tunable light source unit is a tunable light source array, and the filter adjustment unit is a variable focus filter wheel, wherein the optical axis of the tunable light source array and the optical axis of the variable focus filter wheel are collinear; A multidimensional sensing and acquisition module is coaxially integrated below the dynamic spectral control module, and includes a three-dimensional topography acquisition unit and a multispectral acquisition unit; the three-dimensional topography acquisition unit is a three-dimensional structured light camera, and the multispectral acquisition unit is a pushbroom multispectral camera, wherein the projection optical path of the three-dimensional structured light camera and the imaging optical path of the pushbroom multispectral camera coincide. The microenvironment semantic processing module is electrically connected to the adaptive cabin module, the dynamic spectrum control module, and the multi-dimensional sensing acquisition module, respectively. The microenvironment semantic processing module is configured to receive contact pressure distribution data collected by the pressure sensing array, control the deformation state of the flexible sealing strip to conform to the outline of the cultural relic, and determine whether to trigger a shutdown command based on the contact pressure distribution data.

2. The multispectral, multidimensional semantic scanning diagnostic device for traditional costume artifacts from Southwest China according to claim 1, characterized in that: The control logic of the dynamic spectral modulation module is as follows: The tunable light source array emits spectral signals covering the ultraviolet to short-wave infrared band, and the variable focus filter wheel switches the center wavelength of the filter in real time according to the reflectance distribution map of the surface area of ​​the cultural relic fed back by the three-dimensional structured light camera. When the reflectivity of the metal decorative area is detected to be higher than a preset threshold, the variable focus filter wheel switches to the short-wave ultraviolet band, and the tunable light source array simultaneously turns on the polarization emission mode. When the reflectance of the plant staining area is found to be lower than a preset threshold, the variable focus filter wheel locks to the characteristic absorption band corresponding to that area and extends the exposure integration time of the tunable light source array.

3. The multispectral, multidimensional semantic scanning diagnostic device for traditional costume artifacts from Southwest China according to claim 1, characterized in that: The multidimensional sensing acquisition module has a high-precision spatial registration mechanism, and the structured light pattern projected by the three-dimensional structured light camera is synchronized with the pixel row scanning frequency of the pushbroom multispectral camera. The pushbroom multispectral camera's detection units correspond sequentially to the ultraviolet band, visible light band, near-infrared band, and short-wave infrared band. Furthermore, the pixel size of the pushbroom multispectral camera is smaller than the reconstruction accuracy of the 3D structured light camera, ensuring that the generated 3D mesh model can be mapped to every pixel of the multispectral data.

4. The multispectral, multidimensional semantic scanning diagnostic device for traditional Southwest costume artifacts according to claim 1, characterized in that: The adaptive cabin module also includes a microenvironment control unit and an alarm unit; The inner wall of the portable cabin is coated with a wave-absorbing coating, and the pressure sensor array is distributed on the inner side of the flexible sealing strip. The alarm unit is an audible and visual alarm component installed on the outer wall of the portable cabin. The audible and visual alarm component includes a buzzer and a warning light, and the buzzer and warning light are electrically connected to the micro-environment semantic processing module. The microenvironment control unit includes an inert gas supply pipeline, a temperature and humidity sensor, and an oxygen concentration sensor. The inert gas supply pipeline is connected to the bottom of the detection chamber, and the temperature and humidity sensor and the oxygen concentration sensor are both located on the inner wall of the detection chamber. The temperature and humidity sensor, the oxygen concentration sensor, and the inert gas supply pipeline are all electrically connected to the microenvironment semantic processing module. When the oxygen concentration sensor detects that the oxygen content in the chamber exceeds a preset safety threshold, the microenvironment semantic processing module controls the inert gas supply pipeline to inject inert gas into the bottom of the detection chamber.

5. The multispectral, multidimensional semantic scanning diagnostic device for traditional costume artifacts from Southwest China according to claim 1, characterized in that: The microenvironment semantic processing module includes a central processing unit and a storage unit, wherein the storage unit is electrically connected to the central processing unit; The storage unit contains a database of weaving process parameters unique to the costumes of ethnic minorities in Southwest China, a database of chemical degradation characteristics of natural dyes, and a database of historical transmission records. The central processing unit is electrically connected to the multidimensional sensing acquisition module and the storage unit, respectively. It is used to receive multispectral data from the multidimensional sensing acquisition module and call the natural dye chemical degradation characteristic library and weaving process parameter library stored in the storage unit to process the multispectral data to generate diagnostic results.

6. A multispectral, multidimensional semantic scanning diagnostic method for traditional costume artifacts from Southwest China, based on the multispectral, multidimensional semantic scanning diagnostic device for traditional costume artifacts from Southwest China as described in any one of claims 1-5, characterized in that: Includes the following steps: Step S1: Place the Southwest traditional costume artifacts into the detection chamber of the adaptive cabin module and start the inert gas supply pipeline of the microenvironment control unit. The pressure sensor array of the safety monitoring unit monitors the contact pressure between the cultural relic and the flexible sealing strip, and controls the elastic deformation of the flexible sealing strip until the cultural relic is subjected to uniform force and does not exceed the preset safety threshold. Step S2: Drive the 3D structured light camera of the multi-dimensional sensing acquisition module to project the coded grating, acquire the depth information of the artifact surface and construct a micron-level 3D mesh model; automatically divide the artifact surface into metal inlay area, plant dyeing area and fabric fold area based on curvature change; Step S3: Based on the region type segmented in Step S2, dynamically adjust the parameters of the dynamic spectral control module: For the metal mosaic region, calculate the Fresnel reflectance coefficient of the surface of the region, adjust the incident angle of the tunable light source array and the receiving angle of the pushbroom multispectral camera to counteract specular reflection, and switch to the short-wave ultraviolet band to excite the fluorescence of the underlying fibers; For the plant staining region, lock the specific characteristic absorption band and extend the integration time. Simultaneous acquisition of multispectral image sequences and three-dimensional topographic data; Step S4: Perform pixel-level spatial registration on the acquired multispectral image sequence and three-dimensional topography data, and bind the spatial coordinates (x, y, z) of each pixel to its corresponding spectral feature (λ) to generate a four-dimensional diagnostic voxel dataset. Step S5: Input the four-dimensional diagnostic voxel dataset into the microenvironment semantic processing module, use the plant dye spectral fingerprint library in the storage unit to identify the degree of dye oxidation, combine the stress concentration area in the three-dimensional model to analyze the coupling relationship between mechanical damage and chemical degradation, distinguish between natural aging traces and abnormal diseases, and generate a diagnostic report containing disease level, cause analysis and repair suggestions.

7. The multispectral and multidimensional semantic scanning diagnostic method for traditional costume artifacts from Southwest China according to claim 6, characterized in that: Step 3, the processing of the metal inlay area specifically includes: ； ； Step 33: Switch the tunable light source array to the 380nm-450nm band to excite the fabric fibers located under the metal decorative layer to generate characteristic fluorescence signals and use these fluorescence signals as diagnostic criteria.

8. The multispectral and multidimensional semantic scanning diagnostic method for traditional costume artifacts from Southwest China according to claim 6, characterized in that: The semantic association diagnosis in step 5 specifically includes: Step 51: Extract the characteristic absorption peak positions and half-width at half-maximum (WHM) of the plant dye region from the four-dimensional diagnostic voxel data, and perform convolution matching with the standard spectral curves in the natural dye chemical degradation feature library. Step 52: Read the stress tensor value deep in the fabric folds in the 3D model. If the stress tensor value exceeds the preset critical value and is accompanied by an enhancement of the spectral characteristics of cellulose hydrolysis products, it is determined to be chemical degradation induced by mechanical stress. Step 53: If abnormal absorption in a specific band is detected but it conforms to the process staining characteristic parameters of a specific branch of ethnic minorities in Southwest China, it is marked as normal process color difference and is not included in the disease statistics.

9. The multispectral and multidimensional semantic scanning diagnostic method for traditional costume artifacts from Southwest China according to claim 6, characterized in that: In step 1, when the pressure sensing array detects that the pressure value at any point exceeds 0.1 N / cm², the microenvironment semantic processing module immediately controls the inert gas supply pipeline to stop operating and controls the flexible sealing strip to retract. At the same time, it controls the buzzer in the audible and visual alarm component on the adaptive cabin module to emit an audible warning signal and controls the warning light to flash.

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