CN113191384B - Hyperspectral image sparse unmixing system based on compressed sensing and installation equipment - Google Patents

Abstract

The invention provides a hyperspectral image sparse unmixing system based on compressed sensing, which comprises a receiving module, a pseudorandom sequence generation module, a filtering module, a conversion module, a transmission module, an acquisition module, a quantization module, a storage module, a display module and a processing module, wherein the pseudo-random sequence generation module is used for generating a pseudo-random sequence; the halogen lamp, the transmission module and the acquisition module are installed in a first box body, the receiving module, the pseudorandom sequence generation module, the filtering module, the quantization module, the conversion module and the storage module are installed in a second box body, and the first box body, the second box body and the computer are installed on a base. The data is sub-sampled through an acquisition module and finally processed through a processing module; the hyperspectral image sparse unmixing system based on compressed sensing avoids influencing accuracy in the use process by installing the first box body, the second box body and the computer on the base.

Description

A hyperspectral image sparse unmixing system and installation equipment based on compressed sensing

technical field

The invention relates to the technical field of image data processing, in particular to a hyperspectral image sparse unmixing system and installation equipment based on compressed sensing.

Background technique

With the rapid development of digital signal processing technology, computer technology and communication technology, hyperspectral remote sensing image processing technology is playing an increasingly important role in military and civilian fields. The resolution of hyperspectral images is generally low, resulting in mixed Pixels exist widely, and processing mixed pixels is more difficult and more important than processing pure pixels. As the main technology of mixed pixel processing, spectral unmixing is to find the proportion of each mixed component in the mixed pixel. A more precise classification technique.

Hyperspectral image sparse unmixing is to decompose mixed pixels into different basic constituent units, or "end members", and obtain the proportion of these constituent units. Hyperspectral image sparse unmixing equipment is in the process of unmixing It needs to be installed first, and how to install it in different usage scenarios will also affect the accuracy of the equipment.

Contents of the invention

The problem to be solved by the present invention is to provide a compressive sensing-based hyperspectral image sparse unmixing system and installation equipment that have unmixing capabilities and can be used in the installation system for the above-mentioned shortcomings in the prior art.

In order to achieve the above object, the present invention adopts the following technical solution: a hyperspectral image sparse unmixing system based on compressed sensing, including a receiving module, a pseudo-random sequence generation module, a filtering module, a conversion module, a transmission module, an acquisition module, Quantization module, storage module, display module and processing module, the acquisition module, transmission module, receiving module, pseudo-random sequence generation module, filtering module, quantization module, conversion module, display module, storage module and processing module are connected in sequence, the The acquisition module sub-samples the data to obtain a hyperspectral data cube, and the processing module uses a non-negative matrix factorization algorithm to perform sparse unmixing of hyperspectral images.

At the same time, a device for installing a compressed sensing hyperspectral image sparse unmixing system is proposed, including a first box, a second box, a computer and a halogen lamp, and the halogen lamp, transmission module and acquisition module are installed on the first box. In a box, the receiving module, pseudo-random sequence generation module, filter module, quantization module, conversion module, and storage module are installed in the second box, and the display module and processing module are installed on the computer. The first box body, the second box body and the computer are installed on the base.

Further, the base is equipped with a plurality of leveling components capable of leveling the base.

Further, a first cooling plate is installed on the first box, a second cooling plate is installed on the second box and the computer, and the first cooling plate and the second cooling plate are communicated through a second pipeline , the first cooling plate and the second cooling plate communicate with the first pipeline and the third pipeline respectively, a water cavity is installed in the base, a water pump is installed in the water cavity, and the third pipeline communicates with the water pump, The first pipe communicates with the water chamber.

Further, a bar-type level is arranged on the top of the center of the second box on the side adjacent to the computer.

Further, the bottoms on both sides of the first box body are respectively hinged to the bottom of the opposite side of the movable plate, the two ends of the top center of the movable plate are respectively fixedly connected to the bottom of the U-shaped bar, and one side of the U-shaped bar is locked with the locking bar. Then, one side of the bottom of the locking rod is fixedly connected to one end of the movable rod, and the movable rod runs through the center of both ends of the locking block. The inside of the locking block is hollow, and the hollow part is a cavity, and the center of the cavity is a The top and the bottom of the side are respectively fixedly connected with the two ends of the stop ring, one side of the stop ring is attached to one end of the spring, the spring is wound around the center of the movable rod, and the other end of the spring is attached to one side of the fixed ring, The fixing ring is sleeved and fixed on one end of the center of the movable rod, and the bottom of the locking rod is respectively fixedly connected with the four corners of the top of the first box body.

Further, the first box body has two-way openings, the two-way openings respectively correspond to the two movable plates, and the first box body is provided with a loading platform.

Compared with the prior art, the present invention has the following beneficial effects: a hyperspectral image sparse unmixing system based on compressed sensing in the present invention subsamples the data through the acquisition module to obtain a hyperspectral data cube, and then converts the hyperspectral data cube It is transmitted to the area array camera, and then the hyperspectral image matrix is obtained, and then the hyperspectral image matrix is passed out through the transmission module, and then passed to the receiving module, and then processed by the pseudo-random sequence generation module, and then passed to the filtering module for filtering. The information is subjected to noise reduction processing. After the processing is completed, it is transmitted to the quantization module for quantization. After completion, it is transmitted to the conversion module to convert it into image information, and then transmitted to the display module for display, and then transmitted to the storage module for storage, and then processed by the processing module on the computer. Analyze and calculate, establish the objective function, apply the non-negative matrix decomposition algorithm to perform hyperspectral image sparse unmixing; the present invention provides a device for installing a compressed sensing hyperspectral image sparse unmixing system through the receiving module and pseudo-random sequence generation modules, filter modules, quantization modules, conversion modules, and storage modules are installed in the second box, installed on the computer through the display module and processing module, through the first box, the second box The body and the computer are installed on the base so that the accuracy of the hyperspectral image sparse unmixing system based on compressive sensing can be avoided during use.

Other advantages, objectives and features of the present invention will partly be embodied through the following descriptions, and partly will be understood by those skilled in the art through the study and practice of the present invention.

Description of drawings

Fig. 1 is a three-dimensional schematic diagram of the overall structure of the present invention.

Fig. 2 is an enlarged schematic diagram of area A in Fig. 1 of the present invention.

Fig. 3 is a front view of the overall structure of the present invention.

FIG. 4 is an enlarged schematic diagram of area B in FIG. 3 of the present invention.

Fig. 5 is a side sectional view of the overall structure of the present invention.

FIG. 6 is an enlarged schematic diagram of area C in FIG. 5 of the present invention.

Fig. 7 is a front sectional view of the overall structure of the present invention.

Fig. 8 is a system flowchart of the present invention;

Detailed ways

In order to make the technical means, creative features, goals and functions achieved by the present invention clearer and easier to understand, the present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments:

The present invention proposes a hyperspectral image sparse unmixing system based on compressed sensing, including a receiving module 22, a pseudo-random sequence generation module 23, a filtering module 24, a conversion module 25, a transmission module 26, an acquisition module 27, a quantization module 28, Storage module 29, display module 30 and processing module 31, acquisition module 27, transmission module 26, receiving module 22, pseudo-random sequence generation module 23, filtering module 24, quantization module 28, conversion module 25, display module 30, storage module 29 Connect with the processing module 31 in turn, the acquisition module 27 carries out sub-sampling to the data, the acquisition module 27 is a single-pixel camera, an area array camera and a spectrometer, and obtains a hyperspectral data cube, and utilizes the single-pixel camera and the spectrometer to utilize the principle of compressed sensing to process the data Sub-sampling to obtain a hyperspectral data cube, then transmit the hyperspectral data cube to an area array camera, then obtain a hyperspectral image matrix, then pass the hyperspectral image matrix through the transmission module 26, then pass it to the receiving module 22, and then pass it through The processing of the pseudo-random sequence generating module 23 is then passed to the filter module 24 for filtering, and the information is subjected to noise reduction processing. After the processing is completed, it is passed to the quantization module 28 for quantization. After completion, it is passed to the conversion module 25 and converted into image information, and then passed Displayed by the display module 30, then transmitted to the storage module 29 for storage, and then analyzed and calculated by the processing module 31 on the computer 11, the objective function is established, and the non-negative matrix decomposition algorithm is used to perform sparse unmixing of the hyperspectral image. The processing module 31 applies Non-negative matrix factorization algorithm for hyperspectral image sparse unmixing.

The present invention also proposes a device for installing a compressive sensing hyperspectral image sparse unmixing system, including a first box 4, a second box 7, a computer 11 and a halogen lamp 10, a halogen lamp 10, a transmission module 26 and an acquisition Module 27 is installed in the first casing 4, receiving module 22, pseudo-random sequence generation module 23, filtering module 24, quantization module 28, conversion module 25, storage module 29 are installed in the second casing 7, display module 30 and The processing module 31 is installed on the computer 11, the display module 30 is installed on the top of the center of one side of the computer 11, and the processing module 31 is installed on the bottom of the center of the side of the computer 11, the first box body 4, the second box body 7 and the computer 11 are installed on On the base 13, an acquisition module 27 is installed at the center of the inner top surface of the first box body 4. The acquisition module 27 is a single-pixel camera, an area array camera and a spectrometer, and a transmission module 26 is installed at one side of the inner top surface center of the first box body 4.

As a specific embodiment, the base 13 is equipped with a plurality of leveling assemblies 1 capable of leveling the base 13 .

As a specific embodiment, the first cooling plate 5 is installed on the first box 4, the second cooling plate 8 is installed on the second box 7 and the computer 11, and the first cooling plate 5 and the second cooling plate 8 pass through the second The pipeline 6 communicates, the first cooling plate 5 and the second cooling plate 8 communicate with the first pipeline 3 and the third pipeline 9 respectively, a water cavity is installed in the base 13, a water pump 12 is installed in the water cavity, the third pipeline 9 communicates with the water pump 12, and the third pipeline 9 communicates with the water pump 12. A pipeline 3 communicates with the water cavity; the bottoms on both sides of the first box body 4 are respectively hinged with the bottom of the opposite side of the movable plate 2, and the two ends of the top center of the movable plate 2 are respectively fixedly connected with the bottom of the U-shaped bar 15, and one side of the U-shaped bar 15 is connected to the bottom of the U-shaped bar 15. The locking rod 14 is clamped, and one side of the bottom of the locking rod 14 is fixedly connected with one end of the movable rod 17. The movable rod 17 runs through the center of both ends of the locking block 16. The inner part of the locking block 16 is hollow, and the hollow part is a cavity 18. The top and the bottom of one side of the center of the cavity 18 are fixedly connected with the two ends of the retaining ring 21 respectively. One side fits, the fixed ring 19 is sleeved and fixed on one end of the center of the movable rod 17, the bottom of the locking rod 14 is fixedly connected with the four corners of the top of the first box body 4 respectively; the top side of the base 13 is fixedly connected with the bottom of the computer 11, and the computer 11 One side is fixedly connected with one side of the second box body 7, and the bottom of the second box body 7 is fixedly connected with the center of the top of the base 13. The second box body 7 is located at the top of the center of the adjacent side of the computer 11. A bar-type level is arranged on the top, which is conducive to Judging whether the equipment is level according to the bar-type level meter, the computer 11 and the top of the second box body 7 are attached to the bottom of the second cooling plate 8 respectively, and the center of one side of the second cooling plate 8 is fixedly connected with one end of the third pipeline 9, and the third pipeline 9 The other end runs through one side of the center of the top of the base 13, and the other end of the third pipe 9 is fixedly connected to the output end of the water pump 12, the bottom of the water pump 12 is fixedly connected to one side of the center of the inner bottom surface, and the center of the other side of the second cooling plate 8 is connected to the second pipe. 6 one end is fixedly connected, the other end of the second pipeline 6 is fixedly connected to the center of one side of the first cooling plate 5, the bottom of the first cooling plate 5 is attached to the top of the first box body 4, the other end of the first cooling plate 5 is connected to the first pipeline 3, one end is welded, the other end of the first pipe 3 runs through the other side of the top center of the base 13, the base 13 is hollow inside, and cooling water is stored in the hollow part, the first cooling plate 5 and the second cooling plate 8 are hollow inside, and the first cooling plate 5. The hollow part communicates with the second pipeline 6 and the third pipeline 9 respectively. The hollow part of the second cooling plate 8 communicates with the first pipeline 3 and the second pipeline 6 respectively, which is beneficial to realize the circulation of cooling water. The first box 4 The bottom is fixedly connected to the other side of the top of the base 13, the center of the ground inside the first box 4 is fixedly connected to the bottom of the stage, and the other side of the center of the top surface inside the first box 4 is fixedly connected to the top of the halogen lamp 10, which is beneficial to To carry the sample, the bottoms on both sides of the first box body 4 are respectively hinged to the bottom of the opposite side of the movable plate 2, and a sealing ring is arranged between the movable plate 2 and the first box body 4, which is beneficial to ensure that the inside of the first box body 4 is sealed and impermeable light, the two ends of the center of the top of the movable plate 2 are fixedly connected with the bottom of the U-shaped bar 15 respectively, and the U-shaped bar 1 5 One side is clamped with the locking rod 14, one side of the bottom of the locking rod 14 is fixedly connected with one end of the movable rod 17, the movable rod 17 runs through the center of both ends of the locking block 16, the inner part of the locking block 16 is hollow, and the hollow part is hollow Cavity 18, the top and bottom of one side of the center of the cavity 18 are fixedly connected with the two ends of the stop ring 21 respectively, one side of the stop ring 21 is attached to one end of the spring 20, the spring 20 is wound around the center of the movable rod 17, and the other end of the spring 20 Laminate with fixed ring 19 one side, computer 11 is connected with power supply by wire, the joint of movable plate 2 and first casing 4 and the joint of fixed ring 19 and locking block 16 are all coated with lubricating oil, are conducive to For the normal operation of the computer 11 and the movable plate 2, the fixed ring 19 is sleeved and fixed on one end of the movable rod 17 center, the bottom of the locking rod 14 is fixedly connected with the four corners of the top of the first box body 4 respectively, and the four corners of the bottom of the base 13 are respectively connected with the leveling The top of component 1 is fixedly connected.

As a specific embodiment, the first box body 4 has two-way openings, and the two-way openings respectively correspond to two movable plates 2 , and the first box body 4 is provided with a loading platform.

As a specific embodiment, the leveling assembly 1 consists of a stud 101, a first fixing block 102, a mounting plate 103, a second fixing block 104, a locking nut 105, a fixing plate 106, a bottom plate 107, a locking bolt 108 and an adjusting nut 109 The bottom four corners of the base 13 are respectively welded to the top of the first fixed block 102, the center of the bottom of the first fixed block 102 is welded to the top of the stud 101, the middle and upper part of the stud 101 runs through the center of the mounting plate 103, and the mounting plate 103 is connected to the mounting plate 103 through the adjusting nut 109. The studs 101 are fixedly connected, and the opposite sides of the adjusting nuts 109 are attached to the center of the top and bottom of the mounting plate 103 respectively, and the two sides of the mounting plate 103 are fixedly connected to the top of the opposite side of the second fixing block 104 respectively, and the second fixing block 104 The center of the bottom of the opposite side is attached to the center of the top of the side away from the fixed plate 106, and the center of the bottom of the second fixed block 104 on the opposite side is fixed to the center of the top of the side away from the fixed plate 106 by locking bolts 108 and locking nuts 105 Connection, the bottom of the fixed plate 106 is fixedly connected with both sides of the center of the top of the bottom plate 107 respectively.

As a specific embodiment, first place the device on the installation plane, observe whether the level on the second box body 7 is level, if it is not level, it needs to be leveled, loosen the adjustment nut 109, and move the installation plate 103 up and down along the stud 101, Thereby drive the second fixed block 104 to move up and down along the stud 101, then drive the fixed plate 106 to move up and down along the stud 101, then drive the base plate 107 to move up and down along the stud 101, when adjusted to a suitable position, tighten the adjusting nut 109, thereby realizing It improves the leveling of the equipment, which is beneficial to ensure the level of the equipment after installation, avoids the experimental error caused by the equipment installation tilt, and improves the accuracy of the equipment. Halogen lamp 10 irradiates the sample. At this time, turn the movable plate 2 upwards so that one side of the movable plate 2 fits with the side of the first box body 4. At this time, turn the movable rod 17 to drive the locking rod 14 to rotate until it is locked. The rod 14 is parallel to the top of the first box body 4. At this time, the movable rod 17 is pressed in the direction of the U-shaped rod 15, thereby driving the fixed ring 19 to move in the direction of the U-shaped rod 15, and then the spring 20 is compressed to make the locking rod 14 pass through the U-shaped rod 15. Type bar 15, this moment reversely rotates active bar 17, thereby drives locking bar 14 to rotate in the opposite direction, until locking bar 14 is perpendicular to the top surface of first casing 4, unclamps active bar 17 this moment, under the spring 20 Under the action of elastic force, the fixing ring 19 is driven to move in the opposite direction to the U-shaped bar 15, and then the locking rod 14 is driven to move in the opposite direction to the U-shaped bar 15, so that the locking bar 14 is engaged with the U-shaped bar 15, otherwise, the side is released , to realize the rapid retraction and release of the movable board 2, which improves the work efficiency. When the device is working or idle, the movable board 2 is put away, which helps to avoid the interference of the external light source on the acquisition module 27, and avoids dust at the same time At this time, the acquisition module 27 is turned on, and the single-pixel camera and spectrometer are used to sub-sample the data using the principle of compressed sensing to obtain a hyperspectral data cube, and then transmit the hyperspectral data cube to the area array camera, and then obtain a hyperspectral image Matrix, then the hyperspectral image matrix is passed out through the transmission module 26, then passed to the receiving module 22, then passed to the processing of the pseudo-random sequence generation module 23, and then passed to the filtering module 24 for filtering, and the information is subjected to noise reduction processing, processing After completion, it is passed to the quantization module 28 for quantification, and after completion, it is passed to the conversion module 25 to be converted into image information, and then passed to the display module 30 for display, then passed to the storage module 29 for storage, and then analyzed by the processing module 31 on the computer 11 Calculate, establish the objective function, and apply the non-negative matrix factorization algorithm to sparsely unmix the hyperspectral image. When the device is working, a large amount of heat will be generated. At this time, the water pump 12 is turned on, and the water pump 12 passes the cooling water in the base 13 through the third pipe 9 Pumped to the inside of the second cooling plate 8, then transported to the first cooling plate 5 through the second pipeline 6, and then returned to the inside of the base 13 through the first pipeline 3, forming a circulation of cooling water, avoiding the occurrence of overheating of the equipment, Improve work efficiency, cooling water replaces fans to dissipate heat, avoiding air convection and unmixing Impact.

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present invention without limitation. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be carried out Modifications or equivalent replacements without departing from the spirit and scope of the technical solution of the present invention shall be covered by the claims of the present invention.

Claims (5)

1. An apparatus for installing a hyperspectral image sparse unmixing system based on compressed sensing is characterized in that: the hyperspectral image sparse unmixing system based on compressed sensing comprises a receiving module (22), a pseudorandom sequence generation module (23), a filtering module (24), a conversion module (25), a transmission module (26), an acquisition module (27), a quantization module (28), a storage module (29), a display module (30) and a processing module (31), wherein the acquisition module (27), the transmission module (26), the receiving module (22), the pseudorandom sequence generation module (23), the filtering module (24), the quantization module (28), the conversion module (25), the display module (30), the storage module (29) and the processing module (31) are sequentially connected, the acquisition module (27) performs sub-sampling on data to obtain a hyperspectral data cube, and the processing module (31) performs hyperspectral image sparse unmixing by applying a non-negative matrix decomposition algorithm;

the equipment comprises a first box body (4), a second box body (7), a computer (11) and a halogen lamp (10), wherein the halogen lamp (10), a transmission module (26) and a collection module (27) are installed in the first box body (4), a receiving module (22), a pseudorandom sequence generation module (23), a filtering module (24), a quantization module (28), a conversion module (25) and a storage module (29) are installed in the second box body (7), a display module (30) and a processing module (31) are installed on the computer (11), and the first box body (4), the second box body (7) and the computer (11) are installed on a base (13);

first box (4) both sides bottom is articulated with fly leaf (2) one side bottom in opposite directions respectively, fly leaf (2) top center both ends respectively with U type pole (15) bottom fixed connection, U type pole (15) one side and check lock lever (14) joint, check lock lever (14) bottom one side and movable rod (17) one end fixed connection, movable rod (17) run through check lock (16) both ends center, the inside cavity of check lock (16), and well kenozooecium divide into cavity (18), cavity (18) center one side top and bottom leave both ends fixed connection with fender ring (21) respectively, fender ring (21) one side and spring (20) one end laminating, spring (20) wraparound is in movable rod (17) center, the spring (20) other end and solid fixed ring (19) one side laminating, gu fixed ring (19) cup joint and fix in movable rod (17) center one end, check lock lever (14) bottom respectively with first box (4) top four corners position fixed connection.

2. The device for installing the hyperspectral image sparse unmixing system based on compressed sensing according to claim 1, wherein the hyperspectral image sparse unmixing system comprises: the base (13) is provided with a plurality of leveling components (1) which can level the base (13).

3. The device for installing the hyperspectral image sparse unmixing system based on compressed sensing according to claim 1, wherein the hyperspectral image sparse unmixing system comprises: install first cooling plate (5) on first box (4), install second cooling plate (8) on second box (7) and computer (11), first cooling plate (5) with communicate through second pipeline (6) between second cooling plate (8), first cooling plate (5) with second cooling plate (8) communicate first pipeline (3) and third pipeline (9) respectively, install the water cavity in base (13), install water pump (12) in the water cavity, third pipeline (9) intercommunication water pump (12), first pipeline (3) intercommunication the water cavity.

4. The device for installing the hyperspectral image sparse unmixing system based on compressed sensing according to claim 1, wherein the hyperspectral image sparse unmixing system comprises: the second box body 7 is provided with a bar type level gauge at the top of the center of one side adjacent to the computer 11.

5. The device for installing the hyperspectral image sparse unmixing system based on compressed sensing according to claim 1, wherein the device comprises: the first box body (4) is provided with two-way openings which respectively correspond to the two movable plates (2), and an objective table is arranged in the first box body (4).

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