CN101895600B - Camera head and shooting method thereof - Google Patents
Camera head and shooting method thereof Download PDFInfo
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- CN101895600B CN101895600B CN200910051497.9A CN200910051497A CN101895600B CN 101895600 B CN101895600 B CN 101895600B CN 200910051497 A CN200910051497 A CN 200910051497A CN 101895600 B CN101895600 B CN 101895600B
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 87
- 238000013480 data collection Methods 0.000 claims description 4
- 238000012546 transfer Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000000977 initiatory effect Effects 0.000 claims description 3
- 230000015654 memory Effects 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
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Abstract
The invention discloses a camera head used for electronic equipment, which at least comprises a camera module, a liquid crystal display (LCD) and a processor, wherein the data lines of the camera module, the LCD and the processor are connected in a tristate mode; a vertical synchronizing signal of the camera module is connected with the interrupt signal of the processor; the work feedback clock signal of the camera module is connected with the writing signal of the LCD and the writing signal of the processor in the tristate mode; the horizontal-synchronizing signal of the camera module is connected with a second interrupt signal of the processor; and the horizontal-synchronizing signal of the camera module is connected with the chip selection signal of the LCD and the chip selection signal of the processor in the trisate mode. The invention also provides a shooting method corresponding to the camera head. The camera head does not additionally adopt ISP, realizes the receiving process of the data acquired by the camera module only by changing the circuit connection and repairing the existing software; and the camera head and the shooting method are simple and effectively reduce the production cost.
Description
Technical field
The present invention relates to a kind of camera head for electronic equipment and image capture method thereof.
Background technology
The module of taking pictures of existing mobile phone generally includes display, camera module, ISP(Camera InterfaceSubsystem Processer, Camera interface subsystem processing unit), general processor.When camera module is found a view preview, understand real-time data collection and send to ISP.ISP is converted to data the needed data format of display and passes to processor, processor by this transfer of data to display.In the time taking pictures, the data of camera module collection are passed to processor by ISP, and processor is jpeg format storage by this data encoding.Visible, the data of camera module collection just can be transferred to processor after all needing to process by ISP, and processor is encoded or refresh display as required.
The volume of mobile phone gets up less, and price is also more and more lower.How to reduce costs be the topic that present mobile phone vendor commercial city is being inquired into keeping utilizing under the constant prerequisite of function.
The present invention provides a kind of new mode in order to improve above-mentioned problem.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of new camera head and image capture method, effectively to reduce costs.
The present invention solves above-mentioned technical problem by such technical scheme:
A kind of camera head is provided, and for electronic equipment, this camera head at least comprises camera module, liquid crystal display and processor; Wherein, the data wire tri-state of the data wire of camera module, the data wire of liquid crystal display and processor connects, the data wire that is processor is connected with the data wire of camera module and the data wire of liquid crystal display respectively, the data wire of camera module and the interconnection of the data wire of liquid crystal display;
The write signal tri-state of the work feedback clock signal of camera module and the write signal of liquid crystal display and processor is connected, the write signal that is processor is connected with the work feedback clock signal of described camera module and the write signal of liquid crystal display respectively, the work feedback clock signal of described camera module and the interconnection of the write signal of liquid crystal display;
The horizontal-drive signal of camera module connects the second interrupt signal of processor, the vertical synchronizing signal of camera module connects the first interrupt signal of processor, the chip selection signal tri-state of the horizontal-drive signal of camera module and the chip selection signal of liquid crystal display and processor is connected, the chip selection signal that is processor is connected with the horizontal-drive signal of camera module and the chip selection signal of liquid crystal display respectively, the horizontal-drive signal of camera module and the interconnection of the chip selection signal of liquid crystal display.
As a modification of the present invention, the order data of liquid crystal display selects the universal input/output interface of signal processing device to be connected.
The present invention also provides a kind of image capture method corresponding with camera head, and the method at least comprises the steps:
The initiation parameter of the first step, configuration camera module;
Second step, frame by frame the data of camera module collection are write in the buffer of processor;
The 3rd step, processor are the discernible form of electronic equipment by there is the data encoding in its buffer.
As a modification of the present invention, the described first step also comprises the steps:
A, configuration camera module, make camera start to enter mode of operation;
B, liquid crystal display control are transferred to the random read-write region of processor, processor configuration liquid crystal display inside and configure the control signal of liquid crystal display ready; Described control signal comprises write signal, chip selection signal and order data selection signal.
As a modification of the present invention, described second step also comprises the steps:
A, first liquid crystal display control is handed to camera module, and camera module writes the data the first row of collection in the random read-write region of liquid crystal display inside;
B, then liquid crystal display control is transferred to processor, the data readback that processor stores up the random read-write region memory of liquid crystal display is in the buffer of processor inside, then reconfigure the random read-write region of liquid crystal display, and it is ready to configure data line of liquid crystal display;
C, repeating step a: liquid crystal display control is handed to camera module again, camera module writes the second row of image data in the random read-write region of liquid crystal display inside, repeating step b again, the like, thereby whole frame data stored into buffer in processor.
As a modification of the present invention, the method also comprises the step of preview, realizes preview and comprises the steps:
The first step, initialization camera module first;
Second step, camera module real-time data collection, and transfer data to liquid crystal display, when after a frame end of transmission, the control of liquid crystal display is transferred to processor, processor rewrites the random read-write region of liquid crystal display inside, the control signal of liquid crystal display is ready, and described control signal comprises write signal, chip selection signal and order data selection signal; Liquid crystal display control is transferred to camera module, and camera module repeats this step, continues to transmit next frame.
Compared with prior art, the present invention has the following advantages: the inner not extra ISP that adopts of camera head, only by changing circuit connection and revising existing software, just realize the reception & disposal that camera module collects data, this device and image capture method are not only simple, and effectively reduce the production cost of camera head.
Brief description of the drawings
Fig. 1 is the configuration diagram of camera head of the present invention.
Fig. 2 is the circuit connection diagram of camera head of the present invention.
Embodiment
Describe the specific embodiment of the present invention in detail below in conjunction with accompanying drawing.
Refer to Fig. 1, the invention provides a kind of camera head for electronic equipment, this device comprises camera module 1, liquid crystal display (LCD) 3 and processor 5.The data wire tri-state of the data wire of camera module 1, the data wire of liquid crystal display 3 and processor 5 connects, and can configure at any time to camera module 1 or processor 5 with the data wire control that ensures liquid crystal display 3.
Wherein, the data wire figure place of liquid crystal display 3 is identical with camera module 1 data bits, and camera module 1 will be supported the data format that liquid crystal display 3 shows, for example RGB565.
Referring to Fig. 2, is the circuit connection diagram of camera head of the present invention.Wherein, the vertical synchronizing signal (VSYNC) of camera module 1 connects the interrupt signal (INT1) of processor 5, and (RW) signal tri-state of writing of writing (RW) signal and processor 5 of the work feedback clock signal (PCLK) of camera module 1 and liquid crystal display 3 is connected.Chip selection signal (CS) tri-state of the horizontal-drive signal (HSYNC) of camera module 1 and the chip selection signal (CS) of liquid crystal display 3 and processor 5 is connected.Horizontal-drive signal (HSYNC) and processor interrupt signal (INT2).The data command of liquid crystal display 3 selects signal (RS) to be connected with the universal input/output interface (GPIO) of processor 5, so that the switching of the timely control command of processor 5 and data.Other pin pin are conventional connect (in conventional connection layout, omitting).
The workflow that camera module of the present invention is realized while finding a view preview comprises the steps:
The first step, initialization camera module first, initialization comprises the steps:
The horizontal-drive signal (HSYNC) of A, configuration camera module 1 and chip selection signal (CS) significant level of liquid crystal display 3 are consistent, the parameter of initialization camera module 1, make the camera module 1 output data format consistent with liquid crystal display 3, camera module 1 is started working.
The interrupt signal of B, configuration processor 5 and camera module 1 vertical synchronizing signal (VSYNC) are consistent, and camera module 1 judges whether to receive vertical synchronizing signal (VSYNC), if judgement is to enter step C; If the judgment is No, preview failure, finishes preview.
C, first liquid crystal display 3 controls are transferred to processor 5, processor 5 configures the random read-write region (GRAM) of liquid crystal display 3 and the control signal (RW, CS, RS) of configuration liquid crystal display 3 is ready.
D, liquid crystal display 3 controls are transferred to camera module 1, and camera module 1 enters mode of operation.
Second step, camera module 1 real-time data collection, and transfer data to liquid crystal display 3, when after this end of transmission of a frame, the control of liquid crystal display 3 is transferred to processor 5, processor 5 rewrites the random read-write region of liquid crystal display 3, and the control signal of liquid crystal display 3 is ready, and the control of liquid crystal display 3 is transferred to camera module 1, camera module 1 repeats this step 2, continues to transmit next frame.
The workflow that camera module of the present invention is realized shooting comprises the steps:
The initiation parameter of the first step, configuration camera module, first the significant level of the chip selection signal (CS) of configuration level synchronizing signal (HSYNC) and liquid crystal display 3 and the interrupt signal (INT2) of processor 5 is consistent, initialization camera module 1, size and the form of selection adjusting camera module 1 image data according to user to pickup quality;
The control of liquid crystal display 3 is transferred to processor 5, processor 5 and configures the random read-write region of liquid crystal display 3 inside and configure the control signal (RW, CS, RS) of liquid crystal display 3 ready;
Second step, data that camera module 1 is gathered write in the buffer in processor 5 frame by frame, and this process comprises the steps:
A, judge vertical synchronizing signal (VSYNC) interrupt whether effective, if unavailability End shooting flow process; If effectively, whether determined level synchronizing signal (HSYNC) interruption is effective, if invalid, finishes the flow process of making a video recording; If effectively, first the control of liquid crystal display 3 is handed to camera module 1, camera module 1 writes the data the first row of collection in the random read-write region of liquid crystal display 3 inside;
B, then liquid crystal display 3 controls are transferred to processor 5, the data readback that processor 5 stores up liquid crystal display 3 random read-write region memories is in the buffer (Buffer) of processor 5 inside, then reinitialize the random read-write region of putting liquid crystal display 3, and it is ready to configure liquid crystal display 3 data wires;
Whether c, continuation determined level synchronizing signal (HSYNC) interrupt effective, if effectively, liquid crystal display 3 controls are handed to camera module 1 again, camera module 1 writes the second row of image data in the random read-write region of liquid crystal display 3 inside, repeat above step a and b, thereby store whole frame data into buffer in processor 5.
The 3rd step, processor 5 are JPEG or the discernible data format of other electronic equipments by there is the data encoding in its buffer.
Camera head of the present invention can be arranged in existing mobile terminal or non-moving terminal, for photographs or video recording short-movie, and shows by liquid crystal display.The inner not extra ISP that adopts of camera head of the present invention, only by changing circuit connection and revising existing software, just realized the reception & disposal that camera module collects data, this device and image capture method are not only simple, and effectively reduce the cost of camera head.
The foregoing is only preferred embodiments of the present invention; protection scope of the present invention is not limited with above-mentioned execution mode; in every case the equivalence that those of ordinary skill in the art do according to disclosed content is modified or is changed, and all should include in the protection range of recording in claims.
Claims (5)
1. a camera head, for electronic equipment, this camera head at least comprises camera module, liquid crystal display and processor; It is characterized in that: the data wire tri-state of the data wire of camera module, the data wire of liquid crystal display and processor connects, the data wire that is processor is connected with the data wire of camera module and the data wire of liquid crystal display respectively, the data wire of camera module and the interconnection of the data wire of liquid crystal display;
The write signal tri-state of the work feedback clock signal of described camera module and the write signal of liquid crystal display and processor is connected, the write signal that is processor is connected with the work feedback clock signal of described camera module and the write signal of liquid crystal display respectively, the work feedback clock signal of described camera module and the interconnection of the write signal of liquid crystal display;
The horizontal-drive signal of described camera module connects the second interrupt signal of processor, the vertical synchronizing signal of camera module connects the first interrupt signal of processor, the chip selection signal tri-state of the horizontal-drive signal of camera module and the chip selection signal of liquid crystal display and processor is connected, the chip selection signal that is processor is connected with the horizontal-drive signal of camera module and the chip selection signal of liquid crystal display respectively, the horizontal-drive signal of camera module and the interconnection of the chip selection signal of liquid crystal display.
2. camera head according to claim 1, is characterized in that: the order data of liquid crystal display selects the universal input/output interface of signal processing device to be connected.
3. an image capture method corresponding with camera head claimed in claim 1, is characterized in that: the method at least comprises the steps:
The initiation parameter of the first step, configuration camera module;
Second step, frame by frame the data of camera module collection are write in the buffer of processor;
The 3rd step, processor are the discernible form of electronic equipment by there is the data encoding in its buffer;
Wherein, described second step comprises the steps:
A, first liquid crystal display control is handed to camera module, and camera module writes the data the first row of collection in the random read-write region of liquid crystal display inside;
B, then liquid crystal display control is transferred to processor, the data readback that processor stores up the random read-write region memory of liquid crystal display is in the buffer of processor inside, then reconfigure the random read-write region of liquid crystal display, and it is ready to configure data line of liquid crystal display;
C, repeating step a: liquid crystal display control is handed to camera module again, camera module writes the second row of image data in the random read-write region of liquid crystal display inside, repeating step b again, the like, thereby whole frame data stored into buffer in processor.
4. utilize the image capture method described in claim 3, it is characterized in that: the described first step also comprises the steps:
A, configuration camera module, make camera start to enter mode of operation;
B, liquid crystal display control are transferred to the random read-write region of processor, processor configuration liquid crystal display inside and configure the control signal of liquid crystal display ready; Described control signal comprises write signal, chip selection signal and order data selection signal.
5. utilize the image capture method described in claim 3, it is characterized in that: the method also comprises the step of preview, realize preview and comprise the steps:
The first step, initialization camera module first;
Second step, camera module real-time data collection, and transfer data to liquid crystal display, when after a frame end of transmission, the control of liquid crystal display is transferred to processor, processor rewrites the random read-write region of liquid crystal display inside, the control signal of liquid crystal display is ready, and described control signal comprises write signal, chip selection signal and order data selection signal; Liquid crystal display control is transferred to camera module, and camera module repeats this step, continues to transmit next frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910051497.9A CN101895600B (en) | 2009-05-19 | 2009-05-19 | Camera head and shooting method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910051497.9A CN101895600B (en) | 2009-05-19 | 2009-05-19 | Camera head and shooting method thereof |
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| Publication Number | Publication Date |
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| CN101895600A CN101895600A (en) | 2010-11-24 |
| CN101895600B true CN101895600B (en) | 2014-10-08 |
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| CN200910051497.9A Expired - Fee Related CN101895600B (en) | 2009-05-19 | 2009-05-19 | Camera head and shooting method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105701026A (en) * | 2016-01-04 | 2016-06-22 | 上海斐讯数据通信技术有限公司 | Data collector and method for collecting data by utilizing system redundant resources |
| WO2021159338A1 (en) * | 2020-02-12 | 2021-08-19 | 深圳元戎启行科技有限公司 | Image acquisition method and apparatus, control apparatus, computer device, readable storage medium, image acquisition device, and remote driving system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101310323A (en) * | 2005-10-14 | 2008-11-19 | 松下电器产业株式会社 | Display control device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101310323A (en) * | 2005-10-14 | 2008-11-19 | 松下电器产业株式会社 | Display control device |
Non-Patent Citations (1)
| Title |
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| US 6,721,016 B1,2004.04.13, |
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Owner name: ZHEJIANG DEJING ELECTRONIC TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: SHANGHAI DECHEN COMMUNICATION TECHNOLOGY CO., LTD. Effective date: 20120104 |
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Effective date of registration: 20120104 Address after: 314050 Zhejiang province 314050 Nanhu District Ling Gong Tang Road No. 3341 (Jiaxing city) building room 228 Applicant after: Zhejiang Dejing Electronics Technology Co.,ltd. Address before: 200233, room 602, C District, science capital, 666, Huangpu District, Shanghai, Beijing East Road Applicant before: Shanghai Dechen Telecomm. Technology Co., Ltd. |
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Effective date of registration: 20171011 Address after: 201203 Chinese (Shanghai) free trade zone 351 GuoShouJing Road No. 2 building A690-17 room Patentee after: Shanghai Hong Kong Communication Technology Co., Ltd. Address before: 314050 Zhejiang province 314050 Nanhu District Ling Gong Tang Road No. 3341 (Jiaxing city) building room 228 Patentee before: Zhejiang Dejing Electronics Technology Co.,ltd. |
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Granted publication date: 20141008 Termination date: 20190519 |