CN212305430U - Image signal processing device, terminal - Google Patents
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- CN212305430U CN212305430U CN202021884528.7U CN202021884528U CN212305430U CN 212305430 U CN212305430 U CN 212305430U CN 202021884528 U CN202021884528 U CN 202021884528U CN 212305430 U CN212305430 U CN 212305430U
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Abstract
An image signal processing device and a terminal, wherein the image signal processing device comprises an input module, a receiving module, an image processing module and a sending module; the input module is used for receiving image signals of a plurality of image signal sources and selecting one path of image signal to be transmitted to the input end of the receiving module; the input end of the image processing module is connected with the output end of the receiving module, and the image processing module is used for processing the received image signal; the input end of the sending module is connected with the output end of the image processing module, and the output end of the sending module is used for outputting signals to the outside. The device can save the mainboard space of the multi-camera mobile equipment.
Description
Technical Field
The utility model relates to an image processing technology field specifically relates to an image signal processing device, terminal.
Background
With the rapid development of mobile devices such as mobile phones, the photographing function is more and more concerned by people, and in order to make the photographing effect of the mobile phone closer to that of a professional single lens reflex camera, it has become a trend to configure a plurality of cameras on one mobile device. The multi-camera means that a platform is required to support a plurality of Mobile Industry Processor Interface (MIPI) camera interfaces, such as D-PHY and C-PHY, and only a high-end data processing platform (hereinafter referred to as a platform) can support 4 to 5 camera interfaces, wherein the cameras can include 1 front camera and 3 to 4 rear cameras; and the middle-low end platform only has 2-3 camera interfaces and can support 1 front camera and 1 to 2 rear cameras.
The mobile device usually uses an additional Image processing chip (ISP) for preprocessing to improve the effect of the camera, but one ISP chip usually can only connect to one camera to independently preprocess the Image data, and if the ISP chip is used to improve the effect of multiple cameras, one ISP chip needs to be added between each camera and the platform. However, as the integration level of the mobile device is higher and the battery capacity is larger and larger, the space of the motherboard is compressed to be smaller and smaller, and the ISP chips occupy the space of the motherboard additionally.
Therefore, an image signal processing device and a terminal are needed to save the space of the main board of the multi-camera mobile device.
Disclosure of Invention
The utility model provides a technical problem how to provide an image signal processing device, terminal to effectively save many cameras mobile device mainboard space.
In order to solve the above technical problem, an embodiment of the present invention provides an image signal processing device, including an input module, a receiving module, an image processing module, and a sending module; the input module is used for receiving image signals of a plurality of image signal sources and selecting one path of image signal to be transmitted to the input end of the receiving module; the input end of the image processing module is connected with the output end of the receiving module, and the image processing module is used for processing the received image signal; the input end of the sending module is connected with the output end of the image processing module, and the output end of the sending module is used for outputting signals to the outside.
Optionally, the input module includes a multi-way selector switch; the multi-path selection switch comprises a plurality of input ends and at least one output end, each input end of the multi-path selection switch is used for being connected with a corresponding image signal source, and the output end of the multi-path selection switch is connected with the input end of the receiving module; under the control of the control signal, one input end of the multi-way selection switch is conducted with the output end of the multi-way selection switch, and the image signal of the image signal source corresponding to the conducted input end is transmitted to the input end of the receiving module.
Optionally, the image processing device further comprises a control module, and the control module is configured to generate the control signal.
Optionally, the multi-way selection switch is an MIPI switch.
Optionally, the image signal processing device has a plurality of input ports, and a plurality of input terminals of the multi-way selector switch are connected to the plurality of input ports in a one-to-one correspondence.
Optionally, the number of the input ports is 2 or 3.
Optionally, the image signal source is an image sensor.
Alternatively, the image signal processing device is integrated in a single semiconductor chip.
The embodiment of the utility model provides a still provide a terminal, the terminal includes a plurality of image signal sources and the aforesaid is arbitrary the image signal processing device, image signal source is used for exporting image signal.
Optionally, the terminal further includes: and the application platform device is coupled with the output port of the image signal processing device.
Compared with the prior art, the utility model discloses technical scheme has following beneficial effect:
the image signal processing device provided in this embodiment may be connected to multiple cameras, and perform signal processing on image signals acquired by the multiple cameras in a time-sharing manner. When the mainboard of the equipment is laid out, a plurality of ISP chips or MIPI switches are not needed to be arranged in extra space, and the mainboard space of the multi-camera mobile equipment can be effectively saved.
Furthermore, a plurality of input ports are arranged on the image signal processing device for a plurality of image signal sources to access, so that the plurality of image signal sources are connected with a plurality of input ends of the multi-way selection switch in a one-to-one correspondence manner.
Further, in order to ensure the signal processing performance of the image signal processing device, the number of the input ports may be 2 or 3 to connect 2 or 3 image signal sources. When the number of the image signal sources is too large, the image signal processing device can not process the image signals sent by the plurality of image signal sources in time, and the processing efficiency is prevented from being influenced.
Furthermore, a plurality of ISP chips can be combined into one chip, so that the design space of the mainboard is greatly saved, the problem of signal quality reduction caused by multiple times of MIPI (million instructions per second) switching wiring can be solved, and meanwhile, the cost problem caused by the plurality of chips can be reduced.
Drawings
Fig. 1 is a schematic structural diagram of an image signal processing device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another image signal processing device according to an embodiment of the present invention.
Detailed Description
As mentioned in the background, currently, for a multi-camera mobile device, an ISP chip is usually configured for each camera, which may occupy additional space of the motherboard.
In addition, if the platform does not have enough data interfaces to connect corresponding multiple cameras, the camera interfaces need to be extended through a MIPI switch (switch), generally, the MIPI switch can link output terminals (transmit, TX for short) of two different cameras and connect data to an input terminal (RX) of the platform, and the MIPI switch is controlled to select data of one of the cameras to realize switching of the two cameras during operation. Or the ISP chip can be added between the MIPI switch and the platform, so that the two cameras can share one ISP chip through the control of the MIPI switch.
However, the inventor finds that a plurality of ISP chips support a plurality of cameras, or a combination of ISP chips and MIPI switch additionally occupies a space of a motherboard, and MIPI signals pass through a plurality of chips, which increases the wiring difficulty and reduces the signal quality.
Therefore, it is desirable to provide an image signal processing device and a terminal to save the main board space of a multi-camera mobile device.
In order to solve the above problem, an embodiment of the present invention provides an image signal processing device, which includes an input module, a receiving module, an image processing module, and a sending module; the input module is used for receiving image signals of a plurality of image signal sources and selecting one path of image signal to be transmitted to the input end of the receiving module; the input end of the image processing module is connected with the output end of the receiving module, and the image processing module is used for processing the received image signal; the input end of the sending module is connected with the output end of the image processing module, and the output end of the sending module is used for outputting signals to the outside.
By the method, the same image signal processing device (namely an ISP chip) can be connected with a plurality of cameras, a plurality of ISP chips or MIPI switches do not need to be arranged in extra space, and the space of a main board of the multi-camera mobile equipment can be effectively saved.
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an image signal processing device 10 according to an embodiment of the present invention, where the image signal processing device 10 may include an input module 101, a receiving module 102, an image processing module 103, and a sending module 104;
the input module 101 is configured to receive image signals of a plurality of image signal sources, where each image signal source may be represented as an image signal source 111, an image signal source 112,. and an image signal source 11n shown in fig. 1, respectively, and select one of the image signals to transmit to an input end a1 of the receiving module 102;
the input end B1 of the image processing module 103 is connected to the output end A2 of the receiving module 102, and the image processing module 103 is used for processing the received image signal;
the input end C1 of the sending module 104 is connected to the output end B2 of the image processing module 103, and the output end C2 of the sending module 104 is used for outputting signals to the outside.
The input module 101 acquires multiple paths of image signals from multiple signal sources outside the image signal processing device 10, selects one path of image signal, inputs the selected path of image signal to the input end a1 of the receiving module 102, and then processes the image signal through a serial path formed by the receiving module 102, the image processing module 103, and the transmitting module 104.
Optionally, the image processing module is an ISP, the receiving module is an input terminal RX of the ISP chip, and the transmitting module is an output terminal TX of the ISP chip.
Optionally, the image signal source is an image sensor.
Alternatively, the output signal is sent to a data processing platform external to the image signal processing device 10.
The plurality of image signal sources may correspond to image sensors of the plurality of cameras, that is, the plurality of cameras may be connected to the same image signal processing device, and the image signal processing device may be an ISP chip.
The image signal processing device 10 provided in this embodiment may be connected to a plurality of cameras, and perform signal processing on image signals acquired by the plurality of cameras in a time-sharing manner. When the mainboard of the equipment is laid out, a plurality of ISP chips or MIPI switches are not required to be arranged in extra space, and the space of the mainboard of the multi-camera mobile equipment can be effectively saved.
In one embodiment, referring to fig. 2, fig. 2 provides a schematic structural diagram of another image signal processing device 20. Wherein, the input module comprises a multi-way selection switch 201; the multi-way selection switch 201 comprises a plurality of input terminals (201 a, 201b, … 201n shown in fig. 2) and at least one output terminal 201m, each input terminal of the multi-way selection switch 201 is used for connecting with a corresponding image signal source (111, 112.., 11n shown in fig. 2), and the output terminal 201m of the multi-way selection switch 201 is connected with the input terminal a1 of the receiving module 102; under the control of the control signal, one of the input terminals of the multi-way selection switch 201 is conducted with the output terminal 201m of the multi-way selection switch 201, and the image signal of the image signal source corresponding to the conducted input terminal is transmitted to the input terminal a1 of the receiving module 102.
The input module 101 of the image processing device 10 in fig. 1 can be implemented by the multi-way switch 201 shown in fig. 2, and the multi-way switch 201 can select one of the input terminals (for example, the input terminal 201a in fig. 2) to be conducted with the output terminal 201m, and the image signal of the connected image signal source (i.e., the image signal source 111 in fig. 2) of the conducting input terminal is transmitted to the input terminal a1 of the receiving module 102 through the multi-way switch 201.
With continued reference to fig. 2, the image processing device 20 may further include a control module 202, and the control module 202 is configured to generate the control signal.
The control signal is used to select an input terminal of the multiplexer 201 that is turned on with the input terminal 201m to control the image signal processed by the image processing device 20 at that time.
Optionally, the multi-way selection switch is an MIPI switch.
The MIPI switch (switch) is used as a switch capable of switching data, extremely small power consumption is needed only during switching, and power consumption is basically avoided after switching, so that the MIPI switch is integrated in an ISP chip, and power consumption during data transmission can be effectively reduced.
Optionally, the image signal processing device has a plurality of input ports, and a plurality of input terminals of the multi-way selector switch are connected to the plurality of input ports in a one-to-one correspondence.
The image signal processing device is provided with a plurality of input ports for a plurality of image signal sources to access, so that the plurality of image signal sources are correspondingly connected with a plurality of input ends of the multi-way selection switch one by one.
Optionally, the number of the input ports is 2 or 3.
In order to ensure the signal processing performance of the image signal processing device, the number of the input ports may be 2 or 3 to connect 2 or 3 image signal sources. When the number of the image signal sources is too large, the image signal processing device can not process the image signals sent by the plurality of image signal sources in time, and the processing efficiency is prevented from being influenced.
In one embodiment, the image signal processing device is integrated in a single semiconductor chip.
The image signal processing device is a semiconductor chip, such as an ISP chip, and an input module is added to the ISP chip to select one of a plurality of paths of image signals acquired from the outside to flow through the ISP chip, so as to process the image signal.
Therefore, a plurality of ISP chips can be combined into one chip, the design space of the mainboard is greatly saved, the problem of signal quality reduction caused by multiple times of MIPI switching wiring can be solved, and meanwhile, the cost problem caused by a plurality of chips can be reduced.
The embodiment of the utility model provides a still provide a terminal, the terminal include a plurality of image signal sources and the above-mentioned embodiment shown in figure 1 or figure 2 image signal processing device, image signal sources is used for exporting image signal.
The terminal may include a memory having stored thereon computer instructions executable on the processor, and a processor controlling the image signal processing device when executing the computer instructions. The terminal includes, but is not limited to, a mobile phone, a computer, a tablet computer, and the like.
Optionally, the terminal further includes: and the application platform device is coupled with the output port of the image signal processing device.
The application platform device, namely the data processing platform, is used for further processing, sending, storing and the like the output signal of the image signal processing device. For example, the application platform device may be a processor in the terminal, or may also be a coprocessor for processing image and/or video signals in the terminal.
It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" in this document indicates that the former and latter related objects are in an "or" relationship.
The "plurality" appearing in the embodiments of the present application means two or more.
The descriptions of the first, second, etc. appearing in the embodiments of the present application are only for illustrating and differentiating the objects, and do not represent the order or the particular limitation of the number of the devices in the embodiments of the present application, and do not constitute any limitation to the embodiments of the present application.
The term "connect" in the embodiments of the present application refers to various connection manners, such as direct connection or indirect connection, to implement communication between devices, which is not limited in this embodiment of the present application.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.
Claims (10)
1. An image signal processing device is characterized by comprising an input module, a receiving module, an image processing module and a sending module; wherein,
the input module is used for receiving image signals of a plurality of image signal sources and selecting one path of image signal to transmit to the input end of the receiving module;
the input end of the image processing module is connected with the output end of the receiving module, and the image processing module is used for processing the received image signal;
the input end of the sending module is connected with the output end of the image processing module, and the output end of the sending module is used for outputting signals to the outside.
2. The image signal processing device according to claim 1, wherein the input module includes a multiplex switch;
the multi-path selection switch comprises a plurality of input ends and at least one output end, each input end of the multi-path selection switch is used for being connected with a corresponding image signal source, and the output end of the multi-path selection switch is connected with the input end of the receiving module;
under the control of the control signal, one input end of the multi-way selection switch is conducted with the output end of the multi-way selection switch, and the image signal of the image signal source corresponding to the conducted input end is transmitted to the input end of the receiving module.
3. The image signal processing device according to claim 2, further comprising a control module for generating the control signal.
4. The image signal processing device according to claim 2, wherein the multiplexing switch is a MIPI switch.
5. The image signal processing device according to claim 2, wherein the image signal processing device has a plurality of input ports, and a plurality of input terminals of the multiplexer are connected in one-to-one correspondence with the plurality of input ports.
6. The image signal processing device according to claim 5, wherein the number of the input ports is 2 or 3.
7. The image signal processing device according to claim 1, wherein the image signal source is an image sensor.
8. The image signal processing device according to claim 1, wherein the image signal processing device is integrated in a single semiconductor chip.
9. A terminal characterized by comprising a plurality of image signal sources for outputting the image signals and the image signal processing device according to any one of claims 1 to 8.
10. The terminal of claim 9, further comprising: and the application platform device is coupled with the output port of the image signal processing device.
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| CN202021884528.7U CN212305430U (en) | 2020-09-01 | 2020-09-01 | Image signal processing device, terminal |
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| CN114125180A (en) * | 2020-09-01 | 2022-03-01 | 格科微电子（上海）有限公司 | Image signal processing device, terminal |
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| CN114125180A (en) * | 2020-09-01 | 2022-03-01 | 格科微电子（上海）有限公司 | Image signal processing device, terminal |
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