CN114500772A - Imaging device and imaging system - Google Patents
Imaging device and imaging system Download PDFInfo
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- CN114500772A CN114500772A CN202210200104.1A CN202210200104A CN114500772A CN 114500772 A CN114500772 A CN 114500772A CN 202210200104 A CN202210200104 A CN 202210200104A CN 114500772 A CN114500772 A CN 114500772A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/60—Noise processing, e.g. detecting, correcting, reducing or removing noise
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/80—Camera processing pipelines; Components thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/50—Control of the SSIS exposure
- H04N25/53—Control of the integration time
- H04N25/533—Control of the integration time by using differing integration times for different sensor regions
- H04N25/534—Control of the integration time by using differing integration times for different sensor regions depending on the spectral component
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/50—Control of the SSIS exposure
- H04N25/57—Control of the dynamic range
- H04N25/58—Control of the dynamic range involving two or more exposures
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Abstract
The embodiment of the invention relates to the technical field of imaging equipment, and discloses an imaging device and an imaging system, the imaging device comprises an image sensor, a first controller and a second controller, wherein the first controller and the second controller are both connected with the image sensor, the first controller is used for configuring and controlling parameters of the image sensor, and receiving half of the data of the image sensor, the second controller for receiving the other half of the data of the image sensor, when the first controller configures parameters of the image sensor differently, the image sensor can realize image acquisition with different frame rates and resolutions, through the structure, the imaging device can change the resolution and the frame rate of image acquisition according to the requirements so as to meet various scene requirements with high requirements on the frame rate and the resolution.
Description
Technical Field
The present invention relates to the field of imaging devices, and in particular, to an imaging device and an imaging system.
Background
An imaging device is an apparatus for forming an image using an optical imaging principle, and is an optical instrument for photographing. In modern life there are many devices that record images, all of which feature imaging devices, such as medical imaging devices, astronomical observation devices, etc.
In the course of carrying out the embodiments of the present invention, the inventors found that: at present, due to the limitation of hardware and software, the traditional imaging device cannot perform high-frame-rate shooting on a scene with a high motion speed, and the shooting requirements of users are difficult to meet.
Disclosure of Invention
The technical problem mainly solved by the embodiments of the present invention is to provide an imaging device, which can change the resolution and frame rate of image acquisition according to the requirements, so as to meet various scene requirements with high requirements on frame rate and resolution.
In order to solve the technical problem, one technical scheme adopted by the embodiment of the invention is as follows: an imaging device is provided, which includes an image sensor, a first controller and a second controller, wherein the image sensor is used for image acquisition and completing photoelectric conversion of light energy, the first controller is connected with the image sensor, the first controller is used for configuring and controlling parameters of the image sensor and receiving half data of the image sensor, the second controller is connected with the image sensor, the second controller is used for receiving the other half data of the image sensor, and when the parameters of the image sensor are configured differently by the first controller, the image sensor can realize image acquisition with different frame rates and resolutions.
Optionally, a high-speed transceiver channel is further included for connecting the first controller and the second controller.
Optionally, the system further comprises a first memory and a second memory, the first memory is connected to the first controller, the first memory is used for storing data processed by the first controller, the second memory is connected to the second controller, and the second memory is used for storing data processed by the second controller.
Optionally, the controller further comprises a low-speed synchronization signal channel, and the low-speed synchronization signal channel is used for connecting the first controller and the second controller.
Optionally, the system further comprises a first solid state disk and a second solid state disk, the first solid state disk is connected with the first controller, the second solid state disk is connected with the second controller, and the first solid state disk and the second solid state disk are both used for storing video data.
The imaging device further comprises a connection port set and a connecting piece, wherein the connecting piece connects the connection port set with the first controller so as to enable the imaging device to realize network connection and signal connection.
Optionally, the connection port set includes an ethernet interface, the ethernet interface is connected to the connection element, and the ethernet interface is used for being connected to an external network cable, so that the imaging device realizes network connection.
Optionally, the device further comprises a coaxial line, the coaxial line is connected with the first controller, and the coaxial line is used for realizing 3G-SDI signal connection; the isolation circuit is connected with the first controller and is used for realizing IO connection of input and output signals.
Optionally, the first controller and the second controller are both FPGA chips.
In order to solve the above technical problem, another technical solution adopted in the embodiments of the present invention is: there is provided an imaging system comprising an imaging apparatus as described above.
The embodiment of the invention has the beneficial effects that: different from the prior art, the imaging device in the embodiment of the present invention includes an image sensor, a first controller and a second controller, where the first controller and the second controller are both connected to the image sensor, the first controller is configured to configure and control parameters of the image sensor and receive half of data of the image sensor, the second controller is configured to receive the other half of data of the image sensor, two controllers are used to reduce the pressure of a single controller on processing data and increase the speed of the controller on processing image data, and at the same time, the first controller and the second controller are configured explicitly to improve the capability of the imaging device on processing image data, and when the first controller configures parameters of the image sensor differently, the image sensor can achieve image acquisition with different frame rates and resolutions, through the structure, the imaging device can change the resolution and the frame rate of image acquisition according to the requirements so as to meet various scene requirements with high requirements on the frame rate and the resolution.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a schematic view showing the connection of elements in an image forming apparatus according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a connection port set in an imaging device according to an embodiment of the invention.
Detailed Description
In order to facilitate an understanding of the invention, reference will now be made in detail to the present embodiments of the invention, examples of which are illustrated in the accompanying drawings. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. As used in this specification, the terms "upper," "lower," "inner," "outer," "vertical," "horizontal," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and simplicity in description, and do not indicate or imply that the referenced devices or elements must be in a particular orientation, constructed and operated in a particular orientation, and are not to be considered limiting of the invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
Referring to fig. 1, the imaging device 100 includes an image sensor 11, a first controller 12, a second controller 13, a high-speed transceiving channel 14, a first memory 15, a second memory 16, a low-speed synchronization signal channel 17, a first solid-state hard disk 18, a second solid-state hard disk 19, a connection port set 20, a connection component 21, a coaxial cable 22, and an isolation circuit 23.
In this embodiment, the connection element 21 may be a high-speed connector, a jumper, or another element having a connection function, and it is only necessary that the connection element 21 has a function of connecting the connection port set 20 to the first controller 12 through a network.
In this embodiment, the first controller 12 and the second controller 13 are both FPGA chips (Field programmable gate arrays); the image sensor 11 is a CMOS (Complementary Metal Oxide Semiconductor) sensor or a CCD (Charge-coupled Device) sensor.
The first controller 12 is connected to the image sensor 11 through a plurality of LVDS (Low-Voltage Differential Signaling) channels, the first controller 12 receives half of data of the image sensor 11 through the LVDS channels, the first controller 12 is integrated with image sensor firmware, and the first controller 12 configures and controls parameters of the image sensor 11 through the image sensor firmware, wherein the parameters of the image sensor 11 include, but are not limited to, exposure time, sensitivity, pixel combination, and the like.
The second controller 13 and the image sensor 11 are also connected through a plurality of LVDS channels, and the second controller 13 receives the other half of the data of the image sensor 11 through the LVDS channels, where the number of the LVDS channels between the first controller 12 and the image sensor 11 is multiple, and the number of the LVDS channels between the second controller 13 and the image sensor 11 is also multiple, so as to ensure that the image data collected by the image sensor 11 can realize high-bandwidth transmission. When the first controller 12 configures parameters of the image sensor 11 differently, the image sensor 11 can acquire images at different frame rates and different resolutions.
The high-speed transceiver channel 14 is used to connect the first controller 12 and the second controller 13, and in this embodiment, the high-speed transceiver channel may be high-speed transceivers of different speed classes. The high-speed transceivers with different speed grades have different bandwidths, and different high-speed transceivers can be selected to be adapted to different FPGA chips according to requirements. It is understood that in some embodiments, the number of the high-speed transceiver channels 14 is not limited, and may be one, two or more, as long as the total bandwidth of the high-speed transceiver channels can meet the requirement of transmitting video data.
The first memory 15 is connected to the first controller 12, the first memory 15 is used for storing data processed by the first controller 12, the second memory 16 is connected to the second controller 13, and the second memory 16 is used for storing data processed by the second controller 13, wherein the data processed by the first controller 12 and the data processed by the second controller 13 include, but are not limited to, picture data, video data, control data, register data, and the like. The first Memory 15 and the second Memory 16 are both DDR SDRAM memories (Double Data rate Synchronous Random Access Memory), in this embodiment, DDR4 SDRAM memories are fourth generation Double Data rate Synchronous Dynamic Random Access memories, where the DDR4 SDRAM memories may be in the form of Memory chip particles or Memory banks.
The low-speed synchronous signal path 17 is used for connecting the first controller 12 and the second controller 13 to enable partial functions between the first controller 12 and the second controller 13 to be synchronous, wherein the low-speed synchronous signal includes, but is not limited to, an LVDS signal, an RS232 (asynchronous transfer standard interface) signal, a pulse or a high-low level signal sent by a General Purpose Input/Output (GPIO), and the like.
The first solid state disk 18 is connected with the first controller 12, the second solid state disk 19 is connected with the second controller 13, and both the first solid state disk 18 and the second solid state disk 19 are used for storing picture data and video data. Lossless compression of picture data and video data is achieved through coding inside the first controller 12 and the second controller 13, then pictures and videos can be stored in the first solid state disk 18 and the second solid state disk 19 through solid state disk control firmware, and upper computer software can access the pictures and videos stored in the first solid state disk 18 and the second solid state disk 19 through 10G ethernet.
In this embodiment, the first controller 12 further integrates a first video driver firmware, the second controller 13 integrates a second video driver firmware, the second video driver firmware is configured to pack the picture data and the video data in the second controller 13 and send the packed picture data and the video data to the first controller 12 through the high-speed transceiver channel, and the first controller 12 sends the picture data and the video data sent by the second controller 13 and the picture data and the video data processed by the first controller 12 to an upper computer through the first video driver firmware, so as to output the packed picture data and the video data.
Specifically, the picture data and the video data collected by the image sensor 11 are respectively sent to the first controller 12 and the second controller 13 through the LVDS channel, the second video driving firmware of the second controller 13 packages the picture data and the video data received by the second controller 13 and sends the picture data and the video data to the first controller 12, and the first video driving firmware of the first controller 12 packages the picture data and the video data received by the first controller 12 and the packaged picture data and video data sent by the second controller 13 and sends the picture data and the video data to an upper computer for a user to view; when the user selects to save the picture or save the video, the picture data and the video data collected by the image sensor 11 include the following transmission paths in addition to the transmission path described above: the image data and the video data acquired by the image sensor 11 are respectively sent to the first controller 12 and the second controller 13 through the LVDS channels, the lossless compression of the image data and the video data is realized by the coding inside the first controller 12 and the second controller 13, and then the image and the video can be stored in the first solid state disk 18 and the second solid state disk 19 through the solid state disk control firmware.
The coaxial line 22 is respectively connected with the connection port set 20 and the first controller 12, the coaxial line 22 is used for realizing the 3G-SDI signal connection of the imaging device 100, the isolation circuit 23 is respectively connected with the connection port set 20 and the first controller 12, and the isolation circuit 23 is used for realizing the IO connection of input and output signals.
Referring to fig. 2, for the connection port set 20, the connection port set 20 is disposed on a rear panel of the imaging apparatus 100, and the connection component 21 connects the connection port set 20 with the first controller 12, so that the imaging apparatus 100 can implement network connection and signal connection, wherein the signal includes, but is not limited to, a control signal, a synchronization signal, and a trigger signal.
The connection port set 20 includes an ethernet interface 201, the ethernet interface 201 is connected to the connection component 21, and the ethernet interface 201 is used for connecting to an external network cable, so that the imaging device 100 realizes network connection.
In this embodiment, the ethernet interface 201 is an RJ-45 interface 2011. It is understood that in some other embodiments, the ethernet interface 201 may be the fiber interface 2012, or in some other embodiments, the imaging apparatus 100 is provided with both the RJ-45 interface 2011 and the fiber interface 2012, and the design of the RJ-45 interface 2011 and the fiber interface 2012 can enhance the network applicability of the imaging apparatus 100, and can be used in more situations.
In this embodiment, the connection port set 20 further includes an RS232/RS485 interface, a Trigger In (Trigger input) signal interface, a Trigger Out (Trigger output) signal interface, a synchronous input interface, a synchronous output interface, a 3G-SDI video interface, a power interface, and the like, and the connection port set 20 is used to connect with an external device or a cable, so as to control the imaging apparatus 100 and meet the requirement of the imaging apparatus 100 for image acquisition.
In this embodiment, the imaging apparatus 100 can achieve a photographing rate of 3600 frames per second for an 8-bit color depth image at a resolution of 2560 × 2048, or a photographing rate of 25000 frames per second for an 8-bit color depth image at a resolution of 2560 × 32, or a photographing rate of 8000 frames per second for an 8-bit color depth image at a resolution of 1280 × 800.
In this embodiment, the imaging apparatus 100 also has very high flexibility, the minimum resolution is 256x32, the maximum resolution is 2560x2048, and the step size 64 can be adjusted in the horizontal direction and the step size 32 can be adjusted in the vertical direction to achieve any intermediate combined resolution, such as 320x32, 256x64, 384x32, 384x64, 384x96, and so on. And simultaneously supports the resolutions commonly used in the video field, such as 640x480, 800x600, 1024x768, 1280x720, 1366x768, 1360x768, 1280x1024, 1440x900, 1680x1050, 1920x1080, 2560x1440, 2560x1600 and the like.
In this embodiment, the imaging device 100 may implement 8-bit, 10-bit, and 12-bit color depths, and the color depths may be configured by host computer software configured with the imaging device 100.
In this embodiment, the imaging device 100 has a plurality of trigger modes including, but not limited to, a start trigger, a center trigger, an end trigger, a manual trigger, a random trigger, an image feature trigger, etc., wherein the random trigger may set the number of frames recorded after each trigger. The trigger source of the imaging apparatus 100 may be a control software trigger source (manual trigger), an IO trigger source, an encoder trigger source, an image brightness trigger source, a face recognition trigger or other object recognition trigger, and the like.
The imaging device 100 of the embodiment of the present application includes an image sensor 11, a first controller 12 and a second controller 13, the first controller 12 and the second controller 13 are both connected to the image sensor 11, the first controller 12 is used for configuring and controlling parameters of the image sensor 11 and receiving half of data of the image sensor 11, the second controller 13 is used for receiving the other half of data of the image sensor 11, the two controllers are adopted to reduce the pressure of a single controller on processing data and increase the speed of the controller on processing image data, meanwhile, the first controller 12 and the second controller 13 are configured explicitly to improve the capability of the imaging device 100 on processing image data, when the first controller 12 configures parameters of the image sensor 11 differently, the image sensor 11 can realize image acquisition with different frame rates and resolutions, with the above structure, the imaging device 100 can change the resolution and the frame rate of image acquisition according to the requirements, so as to meet various scene requirements with high requirements on the frame rate and the resolution.
The present application further provides an embodiment of an imaging system, where the imaging system includes the imaging apparatus 100 described above, and for specific structures and functions of the imaging apparatus 100, reference may be made to the above embodiment, and details are not repeated here.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. An image forming apparatus, comprising:
the image sensor is used for image acquisition;
a first controller connected with the image sensor, the first controller being used for configuring and controlling parameters of the image sensor and receiving half data of the image sensor;
the second controller is connected with the image sensor and used for receiving the other half of data of the image sensor, and when the first controller performs different configurations on parameters of the image sensor, the image sensor can achieve image acquisition with different frame rates and resolutions.
2. The imaging apparatus according to claim 1,
also included is a high-speed transceiver lane for connecting the first controller and the second controller.
3. The imaging apparatus of claim 2,
the device comprises a first controller, a second controller and a storage, wherein the first controller is used for processing data, the second controller is used for processing data, the first storage is connected with the second controller, and the second controller is used for processing data.
4. The imaging apparatus according to claim 3,
the controller also comprises a low-speed synchronous signal channel which is used for connecting the first controller and the second controller.
5. The imaging apparatus according to claim 4,
the video data storage system is characterized by further comprising a first solid state disk and a second solid state disk, wherein the first solid state disk is connected with the first controller, the second solid state disk is connected with the second controller, and the first solid state disk and the second solid state disk are used for storing video data.
6. The imaging apparatus according to claim 5,
the imaging device further comprises a connection port set and a connecting piece, wherein the connecting piece connects the connection port set with the first controller so as to enable the imaging device to realize network connection and signal connection.
7. The imaging apparatus according to claim 6,
the connection port set comprises an Ethernet interface, the Ethernet interface is connected with the connecting piece, and the Ethernet interface is used for being connected with an external network cable so that the imaging device can realize network connection.
8. The imaging apparatus according to claim 6,
the coaxial line is connected with the first controller and used for realizing 3G-SDI signal connection;
the isolation circuit is connected with the first controller and used for realizing IO connection of input and output signals.
9. The imaging apparatus according to any one of claims 1 to 8,
the first controller and the second controller are both FPGA chips.
10. An imaging system comprising an imaging apparatus according to any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210200104.1A CN114500772A (en) | 2022-03-02 | 2022-03-02 | Imaging device and imaging system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210200104.1A CN114500772A (en) | 2022-03-02 | 2022-03-02 | Imaging device and imaging system |
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| CN114500772A true CN114500772A (en) | 2022-05-13 |
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| CN202210200104.1A Pending CN114500772A (en) | 2022-03-02 | 2022-03-02 | Imaging device and imaging system |
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