An ultra dynamic range camera and method thereof and a color sorter

Abstract

The application discloses a kind of ultra large dynamic range camera and its method and color sorter, in the present application: spectrometer prism is installed in the middle of fixed seat;Fixed seat bottom is equipped with light inlet;Transmission camera assembly and reflection camera assembly are fixed on fixed seat by adjusting stud assembly;Transmission camera assembly is installed on the top of fixed seat, and reflection camera assembly is installed on the side of fixed seat;Spectrometer prism is divided into 2 light paths by incident light source and is respectively irradiated to transmission camera assembly and reflection camera assembly;Transmission camera assembly and reflection camera assembly transmit data to signal board;Signal board transmits data to controller.The application is irradiated to reflection camera and transmission camera by setting spectrometer prism and carrying out light splitting processing to incident light source, and the image data transmitted by controller is compared with the threshold value preset after splicing, can simultaneously shoot clear dark material and bright material;Image processing speed is faster than traditional HDR camera.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of cameras, and particularly relates to a super large dynamic range camera and a method thereof and a color sorter. BACKGROUND

[0002] In the case that the light source brightness and the exposure time are fixed, the information of the object that can be captured by the traditional camera is limited: if the dark object can be captured clearly, the bright object will be saturated; on the contrary, if the bright object can be captured clearly, the dark object will be indistinguishable from the background.

[0003] The existing market fixes the light source brightness, adopts two exposure times to obtain two images by using one sensor, and then integrates the two images to make the bright object and the dark object clearly present in the same image. This method corresponds to the general HDR camera. SUMMARY

[0004] The application aims to provide a super large dynamic range camera and a method thereof and a color sorter, which can capture the dark object and the bright object clearly by setting a light splitting prism to split the incident light source and then irradiating the light to a reflection camera and a transmission camera, and splicing the image data transmitted by the reflection camera and the transmission camera after comparing the image data with a preset threshold value by a controller.

[0005] To solve the above technical problems, the application is implemented by the following technical scheme:

[0006] The application is a super large dynamic range camera, which comprises a fixing seat, a transmission camera assembly, a reflection camera assembly and a light splitting prism; the light splitting prism is installed in the middle of the fixing seat; the bottom of the fixing seat is provided with a light inlet; the transmission camera assembly and the reflection camera assembly are fixed on the fixing seat through an adjusting stud assembly; the transmission camera assembly is installed on the top of the fixing seat, and the reflection camera assembly is installed on the side of the fixing seat; the light splitting prism is inclined at an angle of 45 degrees with the light inlet; the light splitting prism splits the incident light source into two paths of light to irradiate the light to the transmission camera assembly and the reflection camera assembly; the transmission camera assembly and the reflection camera assembly transmit the received data to a signal board; and the signal board transmits the received data to a controller.

[0007] Further, the fixing seat is a unique rectangular frame structure, the fixing seat is fixed on a bottom plate; one side of the fixing seat is provided with a first mounting groove for mounting the reflection camera assembly; the upper surface of the fixing seat is provided with a second mounting groove for mounting the transmission camera assembly; and one side of the fixing seat is provided with a prism fixing seat for fixing the light splitting prism.

[0008] Further, both sides of the first mounting groove and the second mounting groove are provided with mounting holes for mounting studs.

[0009] Further, the transmission camera assembly comprises a first fixing frame and a transmission camera; the transmission camera is mounted in the middle of the first fixing frame; both sides of the first fixing frame are respectively provided with a first fixing plate; the upper surface of the first fixing plate is provided with a first fixing hole for cooperating with the adjusting stud assembly.

[0010] Further, the reflection camera assembly comprises a second fixing frame and a reflection camera; the reflection camera is mounted in the middle of the second fixing frame; both sides of the second fixing frame are respectively provided with a second fixing plate; the upper surface of the second fixing plate is provided with a second fixing hole for cooperating with the adjusting stud assembly.

[0011] Further, the top of the transmission camera is mounted with a heat dissipation assembly; the heat dissipation assembly comprises a heat conduction sheet, a refrigeration sheet and a heat dissipation fan; the heat dissipation fan is mounted on a fan fixing plate; both ends of the fan fixing plate are fixed on the fixing seat through a support plate;

[0012] The refrigeration sheet is mounted on the lower surface of the fan fixing plate; the lower end of the refrigeration sheet is connected with the heat conduction sheet, and the lower end of the heat conduction sheet is connected with the transmission camera.

[0013] Further, the adjusting stud assembly comprises a stud, a mounting nut, an adjusting nut and a fixing nut; the stud is fixed on the mounting hole through the mounting nut; the adjusting nut and the fixing nut cooperate to fix the first fixing frame or the second fixing frame.

[0014] Further, both sides of the light splitting prism are respectively provided with light splitting prism fixing seats, and the light splitting prism mounting seat is fixed on the prism fixing seat through a screw; the middle of the light splitting prism is provided with a lens mounting groove for mounting a lens.

[0015] An ultra-large dynamic range camera and a method thereof, and a control method of a color sorter, comprising the following steps:

[0016] Stp1, the light splitting prism splits the light source entering from the light inlet into a / b two paths to sequentially irradiate the reflection camera and the transmission camera; wherein the brightness of the a path light source is higher than that of the b path light source;

[0017] Stp2, the transmission camera and the reflection camera transmit data to the controller after receiving the light source;

[0018] Stp3, the controller compares and integrates the image data after receiving the image data transmitted by the transmission camera and the reflection camera;

[0019] comprising the following sub-steps:

[0020] SS01, the staff inputs the threshold value C into the controller according to the need of screening materials; the pixel value corresponding to each pixel point (x, y) in the image transmitted by the reflection camera is marked as V (x, y, 1), and the pixel value corresponding to each pixel point (x, y) in the image transmitted by the transmission camera is marked as V (x, y, 2);

[0021] SS02, the pixel value V (x, y, 1) transmitted by the reflection camera is compared with the threshold value C respectively; if the pixel value V (x, y, 1) is not higher than the threshold value C, the pixel value V (x, y, out) of the pixel point (x, y) in the integrated image output by the controller takes the pixel value V (x, y, 1); if the pixel value V (x, y, 1) is higher than the threshold value C, the pixel value V (x, y, out) of the pixel point (x, y) in the integrated image output by the controller takes the pixel value V (x, y, 2).

[0022] A color sorter, the color sorter is applied to a super large dynamic range camera and a method thereof and the color sorter.

[0023] The present application has the following beneficial effects:

[0024] The present application has the following beneficial effects:

[0025] Of course, implementing any product of the present application does not necessarily need to achieve all the advantages described above at the same time. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0027] Figure 1 It is a structural schematic diagram of a super large dynamic range camera;

[0028] Figure 2 It is a structural schematic diagram of a rear view angle of a super large dynamic range camera;

[0029] Figure 3 It is a side view of a super large dynamic range camera;

[0030] Figure 4 It is a structural schematic diagram of a fixing seat;

[0031] Figure 5 A structural schematic diagram of a transmission camera assembly;

[0032] Figure 6 A front view of a transmission camera assembly;

[0033] Figure 7 A structural schematic diagram of a reflection camera assembly;

[0034] Figure 8 A structural schematic diagram of a light splitting prism. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0036] Embodiment one:

[0037] Please refer to Figures 1-8 The present application is an ultra-large dynamic range camera, which comprises a fixing seat 1, a transmission camera assembly 2, a reflection camera assembly 3 and a light splitting prism 7. The light splitting prism 7 is installed in the middle of the fixing seat 1. The bottom of the fixing seat 1 is provided with a light inlet 102.

[0038] The transmission camera assembly 2 and the reflection camera assembly 3 are fixed on the fixing seat 1 through an adjusting stud assembly 6. The transmission camera assembly 2 is installed on the top of the fixing seat 1, and the reflection camera assembly 3 is installed on the side of the fixing seat 1. A power board 5 is installed on one side of the fixing seat 1, which supplies power for the transmission camera 201, the reflection camera 301, a cooling fan 206 and a signal board 4.

[0039] The adjusting stud assembly 6 comprises a stud 604, a mounting nut 601, an adjusting nut 602 and a fixing nut 603. The stud 604 is fixed on the mounting hole 106 through the mounting nut 601. The adjusting nut 602 and the fixing nut 603 cooperate to fix the first fixing frame 201 or the second fixing frame 301. The position of the first fixing frame 201 and the second fixing frame 301 can be adjusted by adjusting the height of the adjusting nut 602. This is convenient for adjusting according to different use environments and expands the use range of the device.

[0040] The light splitting prism 7 is inclined at an angle of 45° with the light inlet 102. The light splitting prism 7 splits the incident light source into two paths of light, which respectively irradiate to the transmission camera assembly 2 and the reflection camera assembly 3. The transmission camera assembly 2 and the reflection camera assembly 3 transmit the received data to the signal board 4. The signal board 4 transmits the received data to the controller.

[0041] As shown in Figure 4 The fixed seat 1 is a unique rectangular frame structure, and the fixed seat 1 is fixed on the bottom plate 101; one side of the fixed seat 1 is provided with a first mounting groove 103 for mounting the reflective camera assembly 3; the upper surface of the fixed seat 1 is provided with a second mounting groove 104 for mounting the transmissive camera assembly 2; one side of the fixed seat 1 is provided with a prism fixing seat 105 for fixing the light splitting prism 7, and both sides of the first mounting groove 103 and the second mounting groove 104 are provided with mounting holes 106 for mounting studs.

[0042] As shown in Figures 5-6 The transmissive camera assembly 2 includes a first fixing frame 201 and a transmissive camera 202; the transmissive camera 202 is mounted in the middle of the first fixing frame 201; both sides of the first fixing frame 201 are respectively provided with a first fixing plate 2011; the upper surface of the first fixing plate 2011 is provided with a first fixing hole 2012 for cooperating with the adjusting stud assembly 6.

[0043] The top of the transmissive camera 202 is mounted with a heat dissipation assembly; the heat dissipation assembly includes a heat conduction sheet 203, a refrigeration sheet 204 and a heat dissipation fan 206; the heat dissipation fan 206 is mounted on a fan fixing plate 205; both ends of the fan fixing plate 205 are fixed on the fixed seat 1 through a support plate 207; the refrigeration sheet 204 is mounted on the lower surface of the fan fixing plate 205; the lower end of the refrigeration sheet 204 is connected with the heat conduction sheet 203, and the lower end of the heat conduction sheet 203 is connected with the transmissive camera 202.

[0044] As shown in Figure 7 The reflective camera assembly 3 includes a second fixing frame 301 and a reflective camera 302; the reflective camera 302 is mounted in the middle of the second fixing frame 301, and both sides of the second fixing frame 302 are respectively provided with a second fixing plate 3011; the upper surface of the second fixing plate 3011 is provided with a second fixing hole 3012 for cooperating with the adjusting stud assembly 6.

[0045] As shown in Figure 8 Both sides of the light splitting prism 7 are respectively provided with a light splitting prism fixing seat 701, and the light splitting prism fixing seat 701 is fixed on the prism fixing seat 105 through screws; the middle of the light splitting prism 7 is provided with a lens mounting groove 702 for mounting a lens.

[0046] Example two:

[0047] The control method of the super large dynamic range camera includes the following steps:

[0048] Stp1, the light splitting prism 7 splits the light source entering from the light entrance 102 into two paths a / b, which are sequentially irradiated to the reflection camera 302 and the transmission camera 202; wherein the brightness of the a path light source is higher than that of the b path light source; a+b=1, 1 represents 100% light source; the reflection camera 302 corresponding to the a path is mainly used to clearly shoot dark materials, and the transmission camera 202 corresponding to the b path is mainly used to clearly shoot bright materials;

[0049] Stp2, the transmission camera 202 and the reflection camera 302 transmit the data to the controller after receiving the light source;

[0050] Stp3, the controller compares and integrates the image after receiving the image data transmitted by the transmission camera 202 and the reflection camera 302;

[0051] including the following sub-steps:

[0052] SS01, the staff inputs the threshold value C into the controller according to the material to be screened; marks the pixel value corresponding to each pixel point (x, y) in the image transmitted by the reflection camera 302 as V(x, y, 1), and marks the pixel value corresponding to each pixel point (x, y) in the image transmitted by the transmission camera 202 as V(x, y, 2);

[0053] SS02, compare the pixel value V(x, y, 1) transmitted by the reflection camera 302 with the threshold value C respectively;

[0054] If the pixel value V(x, y, 1) is not higher than the threshold value C, the pixel value V(x, y, out) of the pixel point (x, y) in the integrated image output by the controller takes the pixel value V(x, y, 1);

[0055] If the pixel value V(x, y, 1) is higher than the threshold value C, the pixel value V(x, y, out) of the pixel point (x, y) in the integrated image output by the controller takes the pixel value V(x, y, 2); the formula is as follows:

[0056]

[0057] Example three:

[0058] A color sorter, the color sorter is provided with an ultra-large dynamic range camera according to the application, and the camera is used to shoot the materials of the color sorter.

[0059] In the description of the specification, reference to "one embodiment", "an example", "a specific example" or the like means that a particular feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. The appearances of the phrases "in one embodiment", "an example", "a specific example" or the like in various places in the specification are not necessarily referring to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0060] The preferred embodiments of the application disclosed above are only to help explain the application. The preferred embodiments do not describe all the details of the application and limit the application to the specific embodiments described. Obviously, many modifications and variations can be made in light of the contents of the specification. The specification selects and specifically describes these embodiments in order to better explain the principles and practical application of the application, so that those skilled in the art can well understand and utilize the application. The application is limited only by the claims and their full scope and equivalents.

Claims

1. A control method for an ultra-large dynamic range camera, characterized in that: The ultra-high dynamic range camera includes a mounting base (1), a transmission camera assembly (2), a reflection camera assembly (3), and a beam splitter (7). The beam splitter (7) is installed in the middle of the mounting base (1). The bottom of the mounting base (1) has a light inlet (102). The transmission camera assembly (2) and the reflection camera assembly (3) are fixed to the mounting base (1) by adjusting stud assemblies (6). The transmission camera assembly (2) is installed on the top of the mounting base (1), and the reflection camera assembly (3) is installed on the side of the mounting base (1). The beam splitter (7) is tilted at 45° to the light inlet (102). The beam splitter (7) splits the incident light source into two paths, which are respectively irradiated to the transmission camera assembly (2) and the reflection camera assembly (3). The transmission camera assembly (2) and the reflection camera assembly (3) transmit the received data to a signal board (4). The signal board (4) transmits the received data to a controller. The control method includes the following steps: Stp1 and the beam splitter (7) divide the light source entering from the light inlet (102) into two paths, a and b, which are then directed to the reflection camera (302) and the transmission camera (202) respectively; the brightness of the light source in path a is higher than that of the light source in path b. Stp2, the transmission camera (202) and the reflection camera (302) receive the light source and transmit the data to the controller; Stp3, after receiving the image data transmitted by the transmission camera (202) and the reflection camera (302), the controller compares and integrates the images; Includes the following sub-steps: SS01, The staff inputs the threshold C into the controller according to the materials to be screened; the pixel value corresponding to each pixel (x,y) in the image transmitted by the reflection camera (302) is marked as V(x,y,1), and the pixel value corresponding to each pixel (x,y) in the image transmitted by the transmission camera (202) is marked as V(x,y,2). SS02. Compare the pixel values ​​V(x,y,1) transmitted by the reflective camera (302) with the threshold C respectively; If the pixel value V(x,y,1) is not higher than the threshold C, then the pixel value V(x,y,out) of the pixel point (x,y) in the integrated image output by the controller is taken as the pixel value V(x,y,1). If the pixel value V(x,y,1) is higher than the threshold C, then the pixel value V(x,y,out) of the pixel point (x,y) in the integrated image output by the controller is taken as the pixel value V(x,y,2).

2. The control method for an ultra-large dynamic range camera according to claim 1, characterized in that, The fixing seat (1) has a unique rectangular frame structure and is fixed on the base plate (101); The mounting base (1) has a first mounting groove (103) on one side for mounting the reflection camera assembly (3); the upper surface of the mounting base (1) has a second mounting groove (104) for mounting the transmission camera assembly (2); and the mounting base (1) has a prism mounting base (105) on one side for fixing the beam splitter prism (7).

3. The control method for an ultra-large dynamic range camera according to claim 2, characterized in that, Both sides of the first mounting groove (103) and the second mounting groove (104) are provided with mounting holes (106) for mounting studs.

4. The control method for an ultra-large dynamic range camera according to claim 3, characterized in that, The transmission camera assembly (2) includes a first fixing frame (201) and a transmission camera (202); the transmission camera (202) is installed in the middle of the first fixing frame (201); a first fixing plate (2011) is provided on each side of the first fixing frame (201); the upper surface of the first fixing plate (2011) is provided with a first fixing hole (2012) for cooperating with the adjusting stud assembly (6).

5. The control method for an ultra-large dynamic range camera according to claim 4, characterized in that, The reflective camera assembly (3) includes a second mounting bracket (301) and a reflective camera (302); the reflective camera (302) is installed in the middle of the second mounting bracket (301), and a second mounting plate (3011) is provided on each side of the second mounting bracket (302); the upper surface of the second mounting plate (3011) is provided with a second mounting hole (3012) for cooperating with the adjusting stud assembly (6).

6. The control method for an ultra-large dynamic range camera according to claim 4, characterized in that, A heat dissipation assembly is installed on the top of the transmission camera (202); the heat dissipation assembly includes a heat-conducting plate (203), a cooling plate (204) and a cooling fan (206); the cooling fan (206) is installed on a fan mounting plate (205); the two ends of the fan mounting plate (205) are fixed to the mounting base (1) by a support plate (207); The cooling chip (204) is mounted on the lower surface of the fan mounting plate (205); the lower end of the cooling chip (204) is connected to the heat-conducting plate (203), and the lower end of the heat-conducting plate (203) is connected to the transmission camera (202).

7. The control method for an ultra-large dynamic range camera according to claim 5, characterized in that, The adjusting stud assembly (6) includes a stud (604), a mounting nut (601), an adjusting nut (602), and a fixing nut (603); the stud (604) is fixed to the mounting hole (106) by the mounting nut (601); The adjusting nut (602) and the fixing nut (603) cooperate to fix the first fixing bracket (201) or the second fixing bracket (301).

8. The control method for an ultra-large dynamic range camera according to claim 1, characterized in that, The beam splitter (7) has beam splitter mounting bases (701) on both sides, and the beam splitter mounting bases (701) are fixed to the beam splitter mounting bases (105) by screws; the beam splitter (7) has a lens mounting groove (702) in the middle for mounting lenses.

9. A color sorter, characterized in that, The color sorter uses an ultra-high dynamic range camera as described in any one of claims 1-8.

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