CN105516546A - High-definition image intensifier - Google Patents
High-definition image intensifier Download PDFInfo
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- CN105516546A CN105516546A CN201510923063.9A CN201510923063A CN105516546A CN 105516546 A CN105516546 A CN 105516546A CN 201510923063 A CN201510923063 A CN 201510923063A CN 105516546 A CN105516546 A CN 105516546A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/20—Circuitry for controlling amplitude response
- H04N5/205—Circuitry for controlling amplitude response for correcting amplitude versus frequency characteristic
- H04N5/208—Circuitry for controlling amplitude response for correcting amplitude versus frequency characteristic for compensating for attenuation of high frequency components, e.g. crispening, aperture distortion correction
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
- Studio Devices (AREA)
- Closed-Circuit Television Systems (AREA)
Abstract
The invention provides a high-definition image intensifier for reducing the cost on the premise of ensuring vehicle-mounted image acquisition quality. The high-definition image intensifier comprises an image acquisition unit, a filter unit and a plurality of pixel amplification units applied to row and column pixels. According to the high-definition image intensifier, the definition of a vehicle-mounted image is improved and can reach 720p.
Description
Technical field
The present invention relates to technical field of image processing, more specifically, relate to a kind of high-definition image multiplier (-icator).
Background technology
What is called promotes clearness and can be described as sharpening, and object makes fuzzy image become more clear.Why fuzzy video image is, and exactly because have lost high fdrequency component in signals transmission, from frequency spectrum angle analysis, image blurring essence is that its high fdrequency component is attenuated, and thus can carry out picture rich in detail by high-pass filtering.The basic thought promoted clearness is exactly the radio-frequency component reasonably improving image.
Conventional enhancing definition algorithm generally has two kinds, the differential method and high-pass filtering method, is the Processing Algorithm of spatial domain and frequency domain respectively.Spatial domain Measures compare is representational to be had, Laplacian algorithm, SOBEL algorithm, the methods such as unsharp masking, and frequency domain is representational small wave converting method.These methods can both improve the definition of image effectively, but have a common feature, be also exaggerated noise, sometimes also occur obvious white edge while enhancing.
Application number be 03110774.5 Chinese patent provide a kind of method and apparatus strengthening image definition, one group of image is copied into two groups by it, one group is carried out ladder/edge and strengthens, one group is carried out structure enhancing, then two groups are combined into the image of definition raising by certain way, the method needs the video image of more than extraction two width, then detects dynamic and non-dynamic region, obtain multiple series of images combination, computing is got up more complicated; Application number be 01800628.0 Chinese patent propose a kind of circuit and the method that are applied to the enhancing image of television equipment, which improve the shortcoming that executory cost in prior art is higher, cost is reduced when not reducing quality of output signals, eliminate low pass filter, and provide at least one adjustment unit to adjust high frequency enhancement degree.
But, for the pictorial information that vehicle-mounted pick-up or camera acquires arrive, still there is no low cost and efficiently image gain device in order to the raising of assistant images resolution.
Summary of the invention
In order to overcome the above-mentioned deficiency of prior art, the invention provides a kind of high-definition image multiplier (-icator), comprising the image acquisition units, filter unit and the multiple pixel amplifying unit being applied to row and column pixel that connect successively.
Further, described image acquisition units is imageing sensor.
Further, described image acquisition units is digital camera.
Further, described filter unit comprises low pass filter and high pass filter.
Further, described pixel amplifying unit comprises: transistor M1-M22, wherein M17 and M18 is two transistors be connected in parallel to each other, and the emitter common ground of M17 and M18, collector electrode connects the collector electrode of M13 and M14 respectively, and the base stage of M17 and M18 connects respective collector electrode respectively, and the base stage of M13 with M14 is connected the output signal of filter unit respectively, the collector electrode of M13 with M14 is connected with each other and is all connected the collector electrode of M15, M15, M11, the emitter of M7 and M8 respectively with M16, M12, the collector electrode of M9 with M10 is connected, and M16, M12, the grounded emitter of M9 and M10, M15, M16, M11, M12, M7, M9, the base stage of M8 with M10 is connected bias voltage respectively, and the emitter of M1 with M2 is connected, and the base stage of M1 with M2 is just being connected power supply respectively, negative pole, the collector electrode of M1 with M2 is connected M5 respectively, the collector electrode of M6, M5, the emitter common ground of M6, and M5, the base stage of M6 is all connected with M17, the collector electrode of M5 connects the emitter of M3, the collector electrode of M3 connects the emitter of M7, the collector electrode of M6 connects the emitter of M4, the collector electrode of M4 connects the emitter of M8, the base stage of M3 and M4 all connects bias voltage, the base stage of M19 with M20 is connected bias voltage respectively, the emitter of M19 and the emitter common ground of M20, and the collector electrode of M19 connects the emitter of M21, the current collection machine of M20 connects the emitter of M22, the collector electrode ground connection respectively of M21 and M22, and the collector electrode of collector electrode and M4 that the base stage of M21 with M22 is connected M3 is respectively as gain output signal.
Beneficial effect of the present invention is: the definition that improve vehicle-mounted image, can reach the high definition degree of 720p.If utilize device of the present invention to carry out cascade, carry out the pixel gain of row and column respectively, then can realize the high-definition image information of 1080p.
Accompanying drawing explanation
Fig. 1 shows the composition frame chart according to a kind of high-definition image multiplier (-icator) of the present invention.
Fig. 2 shows the row pixel gain circuit connection diagram according to high-definition image multiplier (-icator) of the present invention.
Embodiment
According to Fig. 1-2, high-definition image multiplier (-icator) of the present invention comprises the image acquisition units, filter unit and the multiple pixel amplifying unit being applied to row and column pixel that connect successively.Wherein Fig. 1 schematically illustrates two-stage amplifying unit.Wherein pixel amplifying unit comprises: transistor M1-M22, wherein M17 and M18 is two transistors be connected in parallel to each other, and the emitter common ground of M17 and M18, collector electrode connects the collector electrode of M13 and M14 respectively, the base stage of M17 and M18 connects respective collector electrode respectively, the base stage of M13 with M14 is connected the output signal of filter unit respectively, and the collector electrode of M13 with M14 is connected with each other and is all connected the collector electrode of M15, M15, M11, the emitter of M7 and M8 respectively with M16, M12, the collector electrode of M9 with M10 is connected, and M16, M12, the grounded emitter of M9 and M10, M15, M16, M11, M12, M7, M9, the base stage of M8 with M10 is connected bias voltage respectively, and the emitter of M1 with M2 is connected, and the base stage of M1 with M2 is just being connected power supply respectively, negative pole, the collector electrode of M1 with M2 is connected M5 respectively, the collector electrode of M6, M5, the emitter common ground of M6, and M5, the base stage of M6 is all connected with M17, the collector electrode of M5 connects the emitter of M3, the collector electrode of M3 connects the emitter of M7, the collector electrode of M6 connects the emitter of M4, the collector electrode of M4 connects the emitter of M8, the base stage of M3 and M4 all connects bias voltage, the base stage of M19 with M20 is connected bias voltage respectively, the emitter of M19 and the emitter common ground of M20, and the collector electrode of M19 connects the emitter of M21, the current collection machine of M20 connects the emitter of M22, the collector electrode ground connection respectively of M21 and M22, and the collector electrode of collector electrode and M4 that the base stage of M21 with M22 is connected M3 is respectively as gain output signal.
Preferably, described image acquisition units is imageing sensor.
Preferably, described image acquisition units is digital camera.
Preferably, described filter unit comprises low pass filter and high pass filter.
Although be described in detail the exemplary embodiment of device of the present invention herein, the those of skill in the art of the art also can carry out various substituting and amendment and do not deviate from the scope and spirit of attached claim to this device by recognizing.
Claims (5)
1. a high-definition image multiplier (-icator), comprises the image acquisition units, filter unit and the multiple pixel amplifying unit being applied to row and column pixel that connect successively.
2. high-definition image multiplier (-icator) according to claim 1, is characterized in that, described image acquisition units is imageing sensor.
3. high-definition image multiplier (-icator) according to claim 1, is characterized in that, described image acquisition units is digital camera.
4. high-definition image multiplier (-icator) according to claim 1, is characterized in that, described filter unit comprises low pass filter and high pass filter.
5. high-definition image multiplier (-icator) according to claim 1, it is characterized in that, described pixel amplifying unit comprises: transistor M1-M22, wherein M17 and M18 is two transistors be connected in parallel to each other, and the emitter common ground of M17 and M18, collector electrode connects the collector electrode of M13 and M14 respectively, the base stage of M17 and M18 connects respective collector electrode respectively, the base stage of M13 with M14 is connected the output signal of filter unit respectively, and the collector electrode of M13 with M14 is connected with each other and is all connected the collector electrode of M15, M15, M11, the emitter of M7 and M8 respectively with M16, M12, the collector electrode of M9 with M10 is connected, and M16, M12, the grounded emitter of M9 and M10, M15, M16, M11, M12, M7, M9, the base stage of M8 with M10 is connected bias voltage respectively, and the emitter of M1 with M2 is connected, and the base stage of M1 with M2 is just being connected power supply respectively, negative pole, the collector electrode of M1 with M2 is connected M5 respectively, the collector electrode of M6, M5, the emitter common ground of M6, and M5, the base stage of M6 is all connected with M17, the collector electrode of M5 connects the emitter of M3, the collector electrode of M3 connects the emitter of M7, the collector electrode of M6 connects the emitter of M4, the collector electrode of M4 connects the emitter of M8, the base stage of M3 and M4 all connects bias voltage, the base stage of M19 with M20 is connected bias voltage respectively, the emitter of M19 and the emitter common ground of M20, and the collector electrode of M19 connects the emitter of M21, the current collection machine of M20 connects the emitter of M22, the collector electrode ground connection respectively of M21 and M22, and the collector electrode of collector electrode and M4 that the base stage of M21 with M22 is connected M3 is respectively as gain output signal.
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| CN201510923063.9A CN105516546B (en) | 2015-12-11 | 2015-12-11 | A kind of high-definition image multiplier (-icator) |
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| CN201510923063.9A CN105516546B (en) | 2015-12-11 | 2015-12-11 | A kind of high-definition image multiplier (-icator) |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204316606U (en) * | 2014-12-30 | 2015-05-06 | 上海华力创通半导体有限公司 | The squelch circuit of digital camera |
| CN104639915A (en) * | 2015-03-02 | 2015-05-20 | 成都中远信电子科技有限公司 | Automatic gain adjustment system of high-definition image intensifier |
| CN104660868A (en) * | 2015-02-25 | 2015-05-27 | 成都中远信电子科技有限公司 | High-definition image intensifier control system |
| CN104994349A (en) * | 2015-07-02 | 2015-10-21 | 宁波摩米创新工场电子科技有限公司 | Smart high-definition multi-screen image processing system |
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2015
- 2015-12-11 CN CN201510923063.9A patent/CN105516546B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204316606U (en) * | 2014-12-30 | 2015-05-06 | 上海华力创通半导体有限公司 | The squelch circuit of digital camera |
| CN104660868A (en) * | 2015-02-25 | 2015-05-27 | 成都中远信电子科技有限公司 | High-definition image intensifier control system |
| CN104639915A (en) * | 2015-03-02 | 2015-05-20 | 成都中远信电子科技有限公司 | Automatic gain adjustment system of high-definition image intensifier |
| CN104994349A (en) * | 2015-07-02 | 2015-10-21 | 宁波摩米创新工场电子科技有限公司 | Smart high-definition multi-screen image processing system |
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Inventor after: Cheng Guozhi Inventor before: Liu Ying |
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Effective date of registration: 20180427 Address after: 264000 Yantai science and technology building, Zhujianglu Road Development Zone, Yantai, Shandong, 32 Applicant after: SHANDONG CHENGHAI ELECTRONIC TECHNOLOGY CO., LTD. Address before: 610000 No. 13, 2 13, Jilai Road, Chengdu High-tech Zone, Sichuan, China, 2 Applicant before: Chengdu Hui Zhi distant view Science and Technology Ltd. |
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