Imported hazardous article document watermark eliminating device

Abstract

The utility model relates to the technical field of watermark elimination of imported dangerous goods documents, and discloses an imported dangerous goods document watermark elimination device which comprises a multi-image acquisition mechanism, the multi-image acquisition mechanism comprises a shell assembly, a lampshade, a lighting assembly, an adjusting assembly, a placing assembly, a camera and a light supplementing lamp, the lampshade is installed on the inner side of the shell assembly, and the lighting assembly is installed on the inner side of the shell assembly. By means of the adjusting assembly, the placing assembly and the lighting assembly, a form is placed on a glass plate, when the form follows the glass plate, the light bar conducts illumination, the camera conducts shooting, and then images of the form and the position of the light bar under the condition of different illumination distances are shot. And the light bars are adjusted according to the size condition of the form, so that the form can conveniently collect handwritings under different light transmission conditions, the subsequent watermark removal operation can be conveniently carried out according to an algorithm, more image sources can be conveniently collected and provided, and the effect stability of watermark elimination is improved.

Description

Technical Field

[0001] This utility model relates to the field of watermark removal technology for imported dangerous goods documents, specifically a watermark removal device for imported dangerous goods documents. Background Technology

[0002] In the supervision and handling of imported dangerous goods, customs and other relevant departments need to review and analyze a large number of documents. However, to ensure the security and copyright of these documents, many imported dangerous goods documents bear watermarks, which seriously interfere with the identification and extraction of document information. Watermarks come in a variety of styles, including text watermarks and graphic watermarks, and their positions and transparency also vary.

[0003] Traditional manual watermark removal methods are extremely inefficient and prone to damaging document content due to improper operation. When processing dangerous goods documents, they cannot effectively deal with complex watermark situations on the documents. When capturing images of dangerous goods document forms, they are too simplistic and difficult to capture form images under multiple light transmission conditions, which is inconvenient for subsequent watermark removal operations.

[0004] To address the aforementioned issues, this application proposes a device for removing watermarks from import dangerous goods documents. Utility Model Content

[0005] The purpose of this invention is to provide a watermark removal device for imported dangerous goods documents, so as to solve the problem mentioned in the background art of the difficulty in collecting form images under multiple light transmission conditions.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A device for removing watermarks on imported dangerous goods documents includes a multi-image acquisition mechanism. The multi-image acquisition mechanism includes a housing assembly, a lampshade, an illumination assembly, an adjustment assembly, a placement assembly, a camera, and a supplementary light. The lampshade is installed inside the housing assembly, the illumination assembly is installed below the lampshade, the adjustment assembly is installed on the housing assembly, the placement assembly is installed on the adjustment assembly, the camera is installed on the housing assembly, and the supplementary light is located around the periphery of the camera.

[0008] Furthermore, the housing assembly includes a box body, a base, a side box, a light shield, and a box cover. The base is fixedly connected to the bottom end of the box body, the side box is fixedly connected to the right end of the box body, the light shield is fixedly connected to the left end of the box body, and the box cover is rotatably connected to the left end of the light shield via a rotating shaft.

[0009] Furthermore, the lighting assembly includes a carriage, mounting blocks, light strips, springs, pull ropes, rollers, an electric telescopic rod, a push rod, and a push wheel. The carriage is fixedly connected to the inside of the housing, and six mounting blocks are slidably connected to the outside of the carriage. The light strips are fixedly connected to the rear end faces of the mounting blocks. The springs are fixedly connected between adjacent mounting blocks. The pull rope is fixedly connected between the bottom ends of the mounting blocks located on the left and right. A mounting groove is provided at the bottom of the housing, and two rollers are rotatably connected to the inside of the mounting groove via a rotating shaft. The pull rope is slidably connected to the rollers on the outside. The electric telescopic rod is fixedly connected to the bottom of the housing, and the push rod is fixedly connected to the output end of the electric telescopic rod. The push wheel is rotatably connected to the outside of the push rod, and the pull wheel is slidably connected to the pull rope on the outside.

[0010] Furthermore, the adjustment assembly includes a motor, a reciprocating lead screw, a slider, a locking block, and a connecting block. The motor is fixedly connected to the inner side of the bottom end of the side box, the reciprocating lead screw is fixedly connected to the output end of the motor, the top end of the reciprocating lead screw is rotatably connected to the reciprocating lead screw via a rotating shaft, the slider is slidably connected to the outer side of the reciprocating lead screw, the locking block is fixedly connected to the inner side of the slider, and the connecting block is fixedly connected to the left end of the slider.

[0011] Furthermore, the placement assembly includes a glass plate, a bracket, a pressure frame, a torsion spring, a pressure block, and a limiting block. The glass plate is fixedly connected to the left end of the connecting block, the bracket is fixedly connected to the top end of the glass plate, the pressure frame is rotatably connected to the front end of the bracket via a rotating shaft, the torsion spring is fixedly connected between the pressure frame and the bracket, the pressure block is fixedly connected to the bottom end of the pressure frame, the limiting block is fixedly connected to the left end of the glass plate, a connecting groove A is provided at the right end of the housing, the connecting block is slidably connected to the inner side of the connecting groove A, and a connecting groove B is provided at the left end of the housing, the limiting block is slidably connected to the inner side of the connecting groove B.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention utilizes an adjustment component, a placement component, and a lighting component to place a form on a glass plate. As the form follows the glass plate, light strips illuminate it, and a camera captures images of the form under varying lighting conditions. Subsequent algorithms process these images, adjusting the position of the light strips to either converge or disperse them, tailored to the size of the form. This facilitates the capture of text under different lighting conditions, enabling subsequent watermark removal based on the algorithm. Supplemental lighting is provided as needed to enhance image capture and provide more image sources, thereby improving the stability and effectiveness of watermark removal. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the watermark removal device for imported dangerous goods documents according to this utility model;

[0015] Figure 2 This is a schematic diagram of the installation structure of the housing assembly of the watermark removal device for imported dangerous goods documents according to this utility model;

[0016] Figure 3 This is a schematic diagram of the installation structure of the lighting component of the watermark removal device for imported dangerous goods documents according to this utility model;

[0017] Figure 4 This is a schematic diagram of the installation structure of the adjustment component of the watermark removal device for imported dangerous goods documents according to this utility model;

[0018] Figure 5 This is a schematic diagram of the installation structure of the placement component of the watermark removal device for imported dangerous goods documents according to this utility model;

[0019] Figure 6 This is a schematic diagram of the installation structure of the pressure frame of the watermark removal device for imported dangerous goods documents according to this utility model;

[0020] In the picture:

[0021] 1. Multiple image acquisition mechanism; 11. Housing assembly; 111. Box body; 112. Base; 113. Side box; 114. Light shield; 115. Box cover; 12. Lampshade; 13. Lighting assembly; 131. Carriage; 132. Mounting block; 133. Light strip; 134. Spring; 135. Pull rope; 136. Roller; 137. Electric telescopic rod; 138. Push rod; 139. Push wheel; 14. Adjustment assembly; 141. Motor; 142. Reciprocating screw; 143. Slider; 144. Locking block; 145. Connecting block; 15. Placement assembly; 151. Glass plate; 152. Bracket; 153. Pressure frame; 154. Torsion spring; 155. Pressure block; 156. Limiting block; 16. Camera; 17. Fill light. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] All standard parts used in this application can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, welding, and bonding that are mature in the prior art. The components used for circuit connection are all conventional models in the prior art.

[0024] Meanwhile, in order to clearly express the connection relationship and working principle between the components and highlight the key points, the accompanying drawings in the instruction manual are organized and drawn in the form of simplified diagrams. One simplified diagram can correspond to multiple materials and actual external structural shapes.

[0025] Please see Figures 1-6 This utility model provides a technical solution: a watermark removal device for imported dangerous goods documents, including a multi-image acquisition mechanism 1. The multi-image acquisition mechanism 1 includes a housing assembly 11, a lampshade 12, an illumination assembly 13, an adjustment assembly 14, a placement assembly 15, a camera 16, and a supplementary light 17. The lampshade 12 is installed inside the housing assembly 11, and the illumination assembly 13 is installed below the lampshade 12. The adjustment assembly 14 is installed on the housing assembly 11, and the placement assembly 15 is installed on the adjustment assembly 14. The camera 16 is installed on the housing assembly 11, and the camera 16 is circumferentially... A supplementary light 17 is provided. Open the box cover 115, rotate the pressure frame 153, place the form on the glass plate 151, release the pressure frame 153, and then the torsion spring 154 on the bracket 152 will cause the pressure frame 153 to reset, causing the pressure block 155 to press and fix the form onto the glass plate 151. Then, the motor 141 inside the side box 113 will run, driving the reciprocating screw 142 to rotate. The connecting slot A limits the connection block 145, causing the locking block 144 to drive the slider 143 to slide back and forth on the reciprocating screw 142. The operation is simple. Close the box cover 115 to block the light. To prevent light sources from entering, plate 114 moves glass plate 151 up and down. As the form follows glass plate 151, light strip 133 illuminates it, and camera 16 captures images of the form under different lighting conditions. These images are then processed using algorithms. Meanwhile, electric telescopic rod 137 extends push rod 138, which in turn drives pull rope 135 downwards via push wheel 139. Pull rope 135 pulls mounting block 132 downwards, causing it to slide on carriage 131. The light strips 133 are brought closer together, and then the mounting block 132 drives the light strips 133 to move closer together, thereby adjusting the position of the light strips 133 and making them converge. The electric telescopic rod 137 is reset, and the elastic force of the spring 134 drives the mounting block 132 to be reset, thereby adjusting the dispersion of the light strips 133 according to the size of the form. This facilitates the collection of text with different light transmission conditions, which in turn facilitates subsequent watermark removal operations based on algorithms. The supplementary light 17 provides supplementary lighting as needed, which facilitates the collection and provides more image sources, improving the stability of watermark removal.

[0026] It should be noted that the acquired images first enter the grayscale processing unit to convert the color images into grayscale images, reducing the amount of data for subsequent processing. Then, image filtering algorithms, such as Gaussian filtering and median filtering, are used to remove noise from the image, making it smoother. Simultaneously, image enhancement algorithms, such as histogram equalization, are used to improve image contrast and highlight the text and pattern information on the document, preparing for subsequent watermark location and removal. A combination of removal algorithms is employed. For text watermarks, a content-based filling algorithm is used, based on the image content surrounding the watermark, to fill the watermark area using image inpainting techniques, making it blend seamlessly with the surrounding image. Natural fusion, this algorithm is based on the idea of ​​partial differential equations. Through iterative calculation, it gradually recovers the image information of the watermark area. For pattern watermarks, it adopts deep learning-based image generative adversarial network technology to build generator and discriminator networks. The generator is responsible for generating the watermark-removed image, and the discriminator is used to judge whether the generated image is real. Through continuous adversarial training, the generator can generate high-quality watermark-removed images that are consistent with the style and content of the original document image. After removal, multiple evaluation indicators, such as peak signal-to-noise ratio and structural similarity index, are used to comprehensively evaluate the image's clarity, detail preservation, and similarity to the original image.

[0027] The housing assembly 11 includes a housing 111, a base 112, a side box 113, a light shield 114, and a lid 115. The base 112 is fixedly connected to the bottom of the housing 111, the side box 113 is fixedly connected to the right end of the housing 111, and the light shield 114 is fixedly connected to the left end of the housing 111. The lid 115 is rotatably connected to the left end of the light shield 114 via a pivot. When the lid 115 is opened, the pressure frame 153 is rotated to place the form on the glass plate 151. The lid 115 is then closed. The light shield 114 is used to prevent the entry of light sources from other places.

[0028] The lighting assembly 13 includes a carriage 131, mounting blocks 132, light strips 133, springs 134, pull ropes 135, rollers 136, an electric telescopic rod 137, a push rod 138, and a push wheel 139. The carriage 131 is fixedly connected to the inside of the housing 111. Six mounting blocks 132 are slidably connected to the outside of the carriage 131. Light strips 133 are fixedly connected to the rear end faces of the mounting blocks 132. Springs 134 are fixedly connected between adjacent mounting blocks 132. A pull rope 135 is fixedly connected between the bottom ends of the mounting blocks 132 on the left and right. A mounting groove is provided at the bottom of the housing 111. Two rollers 136 are rotatably connected to the inside of this mounting groove via a pivot. The pull rope 135 is slidably connected to the rollers 136 on the outside. An electric telescopic rod 137 is fixedly connected to the bottom of the housing 111. A push rod 138 is fixedly connected to the output end of the electric telescopic rod 137. A push wheel 139 is connected to the side rotation. The outer side of the push wheel 139 is slidably connected to the pull rope 135. The operation of the electric telescopic rod 137 drives the push rod 138 to extend. The push rod 138 drives the pull rope 135 to move downward through the push wheel 139. The pull rope 135 pulls the mounting block 132 downward, causing the mounting block 132 to slide on the slide 131 and move closer to each other. Then, the mounting block 132 drives the light strips 133 to move closer to each other, thereby adjusting the position of the light strips 133 and making the light strips 133 gather. The electric telescopic rod 137 returns to its original position, and the elastic force of the spring 134 drives the mounting block 132 to return to its original position. This allows the light strips 133 to be dispersed and adjusted according to the size of the form, making it convenient for the form to collect text with different light transmission conditions. This facilitates subsequent watermark removal operations based on the algorithm. The supplementary light 17 provides supplementary lighting as needed, facilitating the collection and providing more image sources, and improving the stability of the watermark removal effect.

[0029] The adjustment assembly 14 includes a motor 141, a reciprocating lead screw 142, a slider 143, a locking block 144, and a connecting block 145. The motor 141 is fixedly connected to the inner side of the bottom of the side box 113. The output end of the motor 141 is fixedly connected to the reciprocating lead screw 142. The top end of the reciprocating lead screw 142 is rotatably connected to the reciprocating lead screw 142 via a rotating shaft. The slider 143 is slidably connected to the outer side of the reciprocating lead screw 142. The locking block 144 is fixedly connected to the inner side of the slider 143. The connecting block 145 is fixedly connected to the left end of the slider 143. The pressure block 155 presses the form tightly and fixes it on the glass plate 151. Then, the motor 141 in the side box 113 runs and drives the reciprocating lead screw 142 to rotate. The connecting slot A limits the connection block 145, so that the locking block 144 drives the slider 143 to slide back and forth on the reciprocating lead screw 142. The operation is simple, thereby moving the form closer to or away from the light strip 133, so that the camera 16 can capture the form image under different light transmission conditions.

[0030] The placement component 15 includes a glass plate 151, a bracket 152, a pressure frame 153, a torsion spring 154, a pressure block 155, and a limiting block 156. The glass plate 151 is fixedly connected to the left end of the connecting block 145. The bracket 152 is fixedly connected to the top end of the glass plate 151. The pressure frame 153 is rotatably connected to the front end of the bracket 152 via a pivot. A torsion spring 154 is fixedly connected between the pressure frame 153 and the bracket 152. The pressure block 155 is fixedly connected to the bottom end of the pressure frame 153. The glass plate 151 is fixedly connected to the left end of the connecting block 145. The box body 111 has a connecting groove A on the right side, and a connecting block 145 is slidably connected to the inside of the connecting groove A. The box body 111 has a connecting groove B on the left side, and the connecting groove B is slidably connected to the limiting block 156. Open the box cover 115, rotate the pressure frame 153, place the form on the glass plate 151, release the pressure frame 153, and then the torsion spring 154 on the bracket 152 drives the pressure frame 153 to reset so that the pressure block 155 presses and fixes the form on the glass plate 151, which is convenient for fixing the form.

[0031] Working principle:

[0032] The device is powered by an external power source. Open the box cover 115, rotate the pressure frame 153, place the form on the glass plate 151, release the pressure frame 153, and then the torsion spring 154 on the bracket 152 drives the pressure frame 153 to reset, causing the pressure block 155 to press and fix the form onto the glass plate 151. Then, the motor 141 inside the side box 113 drives the reciprocating screw 142 to rotate. The connecting slot A limits the connection block 145, causing the locking block 144 to drive the slider 143 to slide back and forth on the reciprocating screw 142. The operation is simple. Close the box cover 115, and the light shield 114 prevents other light sources from entering, then moves the glass plate 151 up and down. As the form follows the glass plate 151, the light strip 133 illuminates it, and the camera 16 captures images of the form under different lighting conditions. The captured images are then processed using subsequent algorithms.

[0033] The operation of the electric telescopic rod 137 drives the push rod 138 to extend. The push rod 138 drives the pull rope 135 to move downward through the push wheel 139. The pull rope 135 pulls the mounting block 132 downward, causing the mounting block 132 to slide on the slide 131 and move closer to each other. Then, the mounting block 132 drives the light strips 133 to move closer to each other, thereby adjusting the position of the light strips 133 and making the light strips 133 gather. The electric telescopic rod 137 returns to its original position, and the elastic force of the spring 134 drives the mounting block 132 to return to its original position. This allows the light strips 133 to be dispersed according to the size of the form, making it easier to collect text with different light transmission conditions. This facilitates subsequent watermark removal operations based on algorithms. The supplementary light 17 provides supplementary lighting as needed, facilitating the collection and providing more image sources, and improving the stability of the watermark removal effect.

Claims

1. An import dangerous goods single certificate watermark eliminating apparatus, characterized by: The utility model provides a multiple imaging mechanism (1), the multiple imaging mechanism (1) includes casing assembly (11), lampshade (12), lighting assembly (13), adjustment assembly (14), placing assembly (15), camera (16) and fill light (17), the lampshade (12) is installed in the inside casing assembly (11), the lighting assembly (13) is installed below the lampshade (12), the adjustment assembly (14) is installed on the casing assembly (11), the placing assembly (15) is installed on the adjustment assembly (14), the camera (16) is installed on the casing assembly (11), and the fill light (17) is arranged in the circumferential position of camera (16).

2. The apparatus for eliminating the watermarks of the import dangerous goods documents according to claim 1, characterized in that: The casing assembly (11) includes a box body (111), a foot (112), a side box (113), a light shield (114) and a box cover (115), the foot (112) is fixedly connected to the bottom end of the box body (111), the side box (113) is fixedly connected to the right end of the box body (111), the light shield (114) is fixedly connected to the left end of the box body (111), and the box cover (115) is rotatably connected to the left end of the light shield (114) through a rotating shaft.

3. The apparatus for removing the watermarks from the import dangerous goods documents according to claim 2, characterized in that: The lighting assembly (13) includes a slide (131), a mounting block (132), a light bar (133), a spring (134), a pull rope (135), a roller (136), an electric telescopic rod (137), a push rod (138) and a push wheel (139), the slide (131) is fixedly connected to the inner side of the box body (111), six mounting blocks (132) are slidingly connected to the outer side of the slide (131), the light bar (133) is fixedly connected to the rear end face of the mounting block (132), the spring (134) is fixedly connected between adjacent two mounting blocks (132), the pull rope (135) is fixedly connected between the bottom end of the mounting block (132) located at the left end and the mounting block (132) located at the right end, an installation groove is formed in the bottom end of the box body (111), two rollers (136) are rotatably connected to the inner side of the installation groove through rotating shafts, the pull rope (135) is slidingly connected to the outer side of the roller (136), the electric telescopic rod (137) is fixedly connected to the bottom end of the box body (111), the push rod (138) is fixedly connected to the output end of the electric telescopic rod (137), the push wheel (139) is rotatably connected to the outer side of the push rod (138), and the push wheel (139) is slidingly connected to the outer side of the pull rope (135).

4. The apparatus for removing the watermarks from the import dangerous goods documents according to claim 2, wherein: Said adjusting assembly (14) includes motor (141), reciprocating screw rod (142), sliding block (143), clamping block (144) and connecting block (145), the inside bottom of side tank (113) is fixedly connected with motor (141), the output end of motor (141) is fixedly connected with reciprocating screw rod (142), the top of reciprocating screw rod (142) is rotatably connected with reciprocating screw rod (142) through the shaft, the outer side of reciprocating screw rod (142) is slidably connected with sliding block (143), the inner side of sliding block (143) is fixedly connected with clamping block (144), the left end of sliding block (143) is fixedly connected with connecting block (145).

5. The apparatus for removing the watermarks from the import dangerous goods documents according to claim 4, characterized in that: Said placing assembly (15) includes glass plate (151), support (152), pressing frame (153), torsion spring (154), pressing block (155) and limiting block (156), the left end of connecting block (145) is fixedly connected with glass plate (151), the top of glass plate (151) is fixedly connected with support (152), the front end surface of support (152) is rotatably connected with pressing frame (153) through the shaft, the torsion spring (154) is fixedly connected between pressing frame (153) and support (152), the bottom of pressing frame (153) is fixedly connected with pressing block (155), the left end of glass plate (151) is fixedly connected with limiting block (156), the right end of box body (111) is provided with connecting groove A, the inner side of connecting groove A is slidably connected with connecting block (145), the left end of box body (111) is provided with connecting groove B, the inner side of connecting groove B is slidably connected with limiting block (156).

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