CN103404125B - Imageing sensor and include the filming apparatus of this imageing sensor - Google Patents
Imageing sensor and include the filming apparatus of this imageing sensor Download PDFInfo
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- CN103404125B CN103404125B CN201280008836.5A CN201280008836A CN103404125B CN 103404125 B CN103404125 B CN 103404125B CN 201280008836 A CN201280008836 A CN 201280008836A CN 103404125 B CN103404125 B CN 103404125B
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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
- H04N23/56—Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means
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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
- H04N23/65—Control of camera operation in relation to power supply
- H04N23/651—Control of camera operation in relation to power supply for reducing power consumption by affecting camera operations, e.g. sleep mode, hibernation mode or power off of selective parts of the camera
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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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/74—Circuitry for compensating brightness variation in the scene by influencing the scene brightness using illuminating means
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- Signal Processing (AREA)
- Studio Devices (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
Abstract
The present invention relates to a kind of imageing sensor and include the filming apparatus of imageing sensor, imageing sensor includes: analog-digital converter, and its illumination intensity signal to applying from illuminance transducer carries out signal processing；Control unit, it receives the digital signal and picture signal applied from analog-digital converter and carries out signal processing；Motion detector, it detects motion out-put supply cut-off signal and LED control signal from the output image of control unit；Digital analog converter, whether the output image of control unit is converted to analogue signal, and is activated to according to power supply cut-off signal optionally export the analogue signal changed by picture output signal by it；And luminous controling unit, what it optionally controlled illuminating part according to LED control signal opens or closes operation.
Description
Technical field
The present invention relates to a kind of imageing sensor and include the filming apparatus of this imageing sensor, more particularly, it relates to one will
Outside optical image signal is converted to the technology of the imageing sensor of electrical picture signal.
Background technology
Typically, imageing sensor is the device that outside optical image signal is converted to electrical picture signal.Particularly,
Cmos image sensor is to utilize CMOS technology of preparing and the imageing sensor produced.Cmos image sensor
In each pixel (Pixel) use utilize photodiode by subject corresponding part replicate optical signal conversion
Store for electronic signal, by by with the electron number ratio of accumulation in the way of the quantity of electric charge that shows be converted to voltage signal after defeated
The mode gone out.
Imageing sensor is broadly divided into cmos image sensor and the use of use complementary type-pattern (CMOS) technology
Charge coupled cell (CCD；Charge Coupled Device) ccd image sensor of technology, above-mentioned two portion
Part all utilizes semiconductor technology to prepare.
Cmos image sensor as above is to be widely used in multiple electronic product, such as, and mobile phone (Mobile
Phone), personal computer (PC, Personal Computer) with camera (Camera), video capture machine and
The device (Device) of digital filming machine etc..
Cmos image sensor is relative in the past as the CCD of imageing sensor, and type of drive is simpler, it is possible to will
Signal processing circuit (Signal Processing Circuit) is accumulated on a single die such that it is able to realize SOC(system on a chip)
(SoC, System On Chip), therefore, it is possible to realize the miniaturization of module.Further, owing to can compatibly use
Organized the CMOS technology of (Set-up) in the past, thus, there is the advantage reducing unit price, need more to come then at it
The state more increased.
Typically, such as digital camera, field camera and the Portable device realizing camera function, including image sensing
The image that the filming apparatus of device utilizes imageing sensor shooting to be entered by camera lens obtains picture signal.Further, by it
Picture signal is converted to digital image data and opens display at aqueous picture to preview (preview) picture.Previewing image
Under the state of display, if making employment trip key (shutter key), view data is then by compression of images, thus stores
For photo data.
Fig. 1 is the structure chart about the filming apparatus including conventional imageing sensor.
Existing filming apparatus includes sensor 10 and videocorder 20.Here, sensor 10 include imageing sensor 11,
Light-emitting component 12, imageing sensor driver 13, pyroelectric infrared sensor 14(Pyroelectric Infrared Sensor；
It is hereinafter referred to as ' pir sensor ') and pir sensor driver 15.Further, videocorder 20 is by including hard disk 21
Digital video recorder constitute.
Imageing sensor 11 claps subject according to the control of imageing sensor driver 13, simulation or number is regarded
Frequently the output signal of image is output in videocorder 20.
Further, light-emitting component 12 is by light emitting diode (LED；Light Emitting Diode) or infrared ray (IR；
Infrared) light emitting diode (LED) is constituted, and infrared light sources is output in outside.
Imageing sensor driver 13 controls the driving of imageing sensor 11, and conversion is obtained by imageing sensor 11
Image after, export picture output signal to videocorder 20.
Pir sensor 14, according to the control of pir sensor driver 15, detects the presence or absence of human body, thus to record
Camera 20 exports pir sensor detection signal.
Pir sensor driver 15 controls the driving of pir sensor 14, and conversion is obtained by pir sensor 14
Image to videocorder 20 export pir sensor detection signal.
Videocorder 20 includes hard disk 21 in inside, stores picture output signal and PIR from sensor 10 input and passes
Sensor detection signal.
Recently, have listed conversion (conversions) product much combining pir sensor 14 and imageing sensor 11,
Existing filming apparatus detects the presence or absence of human body by the detection of pir sensor 14 as above.
Such as, when pir sensor 14 is applied to guard system, if detecting human body from pir sensor 14
Or the presence or absence of animal, then image is stored in hard disk 21, if it is confirmed that go out human body or animal by imageing sensor 11
Existence, then outside generate warning tones.
Existing filming apparatus as above in order to the presence or absence detecting human body or animal also include imageing sensor 11 with
Outer other pir sensor 14.Thus, should be provided with and export for the image between sensor 10 and videocorder 20
The circuit of the detection of signal and for detecting the circuit of pir sensor detection signal, and two circuits.
The expense that realizes that accordingly, there exist the camera system including imageing sensor increases, and increases with various lines, thus
Can not the problem of simple realization camera system.
On the other hand, hot-wire transducer device is to utilize infrared ray to judge to monitor the people in region to the change detecting its value
Device with presence or absence of body.
Hot line sensing device as above, according to its operating principle, is divided into active and type hand.Active hot line senses
Device device is in determined location, is respectively provided with optical receiver and light projector, at light-receiving with the fixing place of prescribed direction
Device receives when the infrared ray that light projector radiates, if inserting object, optical receiver between optical receiver and light projector
Infrared detection then disappear, and the device of detector.
Further, type hand hot-wire transducer device is the pyroelectric infrared sensor only arranging and having wide visual field angle, if people
Body is close to this angle of visual field, and sensor then detects that corresponding infrared ray is to generate the device of alarm.
As the pir sensor 14 of motion detection sensor as the device of the infrared detection mode utilizing type hand,
Utilize the sensor also known as infrared ray sensor.
The variations in temperature of surrounding is made the reaction of sensitivity by infrared ray sensor as above, thus, misoperation is the most.
And, it is impossible to it is arranged on occurring near the high incandescent lamp bulb of heat or the light fixture of daylight lamp of the inside as being formed at illumination housing
And use.
On the other hand, the camera system being used as monitoring use etc. is extensively utilized to be provided with motion recently in terminal market
(Motion) detection function, according to the presence or absence of motion, cuts off the power supply (Power) etc. of video output terminals for power consumption
Function.That is, it is provided with in camera system as in the case of nonmotile, it is possible to disconnect the power supply of video output terminals
The several functions of the application motion detection of function.
Existing monitoring camera system, utilizes IR-LED(Infrared Light Emitting in low-light (level)
Diode, infrared light-emitting diode) identify object.But, owing to being always on the shape of IR-LED in low-light (level)
Differentiate the motion of object under state, thus be restricted in terms of reducing power consumption phenomenon.
Particularly, in order to carry out motion detection, the illumination of image to be maintained certain level, in order at low-light (level) shape
Maintain the illumination of image under state definitely, the illumination of IR-LED will be transferred to level definitely, thus, reducing power consumption
Phenomenon aspect is restricted.
Summary of the invention
Technical problem
The present invention proposes to solve existing issue as above, and its purpose is as follows.
First, IR-LED(Infrared Light Emitting Diode is set inside imageing sensor simultaneously, infrared
Line light emitting diode) control function and motion (Motion) detection function, only to beat when the work of motion detection function
Open IR-LED such that it is able to reduce unnecessary power consumption phenomenon.
Second, it is not provided with single pir sensor, and by imageing sensor detection motion (Motion), it is thus possible to
Enough whether detect the motion of human body (or animal) merely with an imageing sensor.
3rd, whether detect the movement of human body, animal or object by imageing sensor, and whether detect according to motion
Determine the presence or absence of the output of picture signal.
4th, in the case of applying picture output signal from imageing sensor, picture signal is stored in storage device,
In the case of not applying picture output signal, be converted to energy-saving mode such that it is able to reduce power consumption.
5th, do not include single pir sensor also be able to from imageing sensor perform motion detection can, it is thus possible to
Enough make system simplify, and the unit price of system can be reduced.
6th, utilize illuminance transducer to judge illumination in low-light (level), output infrared light sources detects motion, thus
Can solve the problem that the weakness in low-light (level).
The means of solution problem
Imageing sensor according to an embodiment of the invention, it is characterised in that including: analog-digital converter, its to from
The illumination intensity signal that illuminance transducer applies carries out signal processing；Control unit, it receives from analog-digital converter applying
Digital signal and picture signal also carry out signal processing；Motion detector, it detects fortune from the output image of control unit
Dynamic also out-put supply cut-off signal and LED control signal；Digital analog converter, the output image of control unit is turned by it
It is changed to analogue signal, and whether is activated to optionally to export the figure being converted into analogue signal according to power supply cut-off signal
As output signal；And luminous controling unit, its optionally control according to LED control signal the opening of illuminating part/
Closing motion.
Further, the filming apparatus of imageing sensor is included according to an embodiment of the invention, it is characterised in that including: shine
Degree sensor, it detects illuminance information, illuminating part, its grade action accordingly with illuminance information, and according to action
Control signal carries out opening/closing motion, and imageing sensor, and it detects fortune from the picture signal applied by camera lens
Dynamic, according to whether check motion optionally export picture output signal, and optionally output action control signal；
Imageing sensor includes: analog-digital converter, and its illuminance information to applying from illuminance transducer carries out signal processing；
Control unit, it receives the digital signal from analog-digital converter input and picture signal and carries out signal processing；Motion
Detector, it detects motion out-put supply cut-off signal and LED control signal from the output image of control unit；Number
Word analog converter, the output image of control unit is converted to analogue signal by it, and according to power supply cut-off signal whether by
Activate and optionally export the picture output signal being converted into analogue signal；And luminous controling unit, it is according to sending out
What optical control signal optionally controlled illuminating part opens/closing motion.
The effect of invention
The present invention provides following effect.
First, IR-LED(Infrared Light Emitting Diode it is simultaneously provided with in the inside of imageing sensor, red
Outside line light emitting diode) control function and motion (Motion) detection function, come only perform motion detection function time
Open IR-LED such that it is able to reduce unnecessary power consumption.
Second, it is not provided with single pir sensor, by imageing sensor detection motion (Motion), thus only profit
With imageing sensor also be able to detect human body (or animal) action with or without.
3rd, by imageing sensor detection human body, animal or object movement whether, according to whether detection determines figure
The output of image signal with or without such that it is able to reduce according to picture signal output drive power consumption flow.
4th, according to the output of the picture signal of imageing sensor whether determine store device picture signal storage with
No such that it is able to reduce the power consumption flow according to storage, and the memory space of storage device can be used at leisure.
5th, do not include that single pir sensor performs motion detection function from imageing sensor, thus, have
Make system simplify and reduce the effect of unit price.
6th, it is not provided with single pir sensor, thus, it is possible to reduce the distribution about pir sensor, thus
The setting of camera system product can be easily performed.
7th, utilize illuminance transducer to judge illumination, under low-light (level), open infrared light-emitting diode such that it is able to
The effect of the weakness of the motion detection solved under low-light (level) is provided.
Further, the preferred embodiments of the present invention propose for the purpose of example, as long as the technical field of the invention
Those of ordinary skill just can by the technological thought of appending claims and scope carry out multiple revision, change,
Replace and additional, and, it is understood that become revision, change as above etc. to belong to the scope of claims.
Accompanying drawing explanation
Fig. 1 is the structure chart of the filming apparatus about including existing imageing sensor.
Fig. 2 is the structure chart of the relevant filming apparatus including imageing sensor according to embodiments of the present invention.
Fig. 3 is the detailed structure view of the imageing sensor about Fig. 2.
Fig. 4 is the figure of the imageing sensor control method for explanatory diagram 3.
Detailed description of the invention
Below, referring to the drawings embodiments of the invention are described in detail.
Fig. 2 is the structure chart of the relevant filming apparatus including imageing sensor according to embodiments of the present invention.
Embodiments of the invention include filming apparatus 100 and storage device 200.Filming apparatus 100 includes illuminance transducer
110, camera lens 120, light-emitting component 130 and imageing sensor 140.Further, storage device 200 includes synchronizing indicator
210 and memorizer 220.
Here, storage device 200 is preferably made up of the digital video recorder etc. of storage digital image.Further, memorizer 220
Preferably include the storage medium of hard disk etc..
First, illuminance transducer 110 detection illuminance information around, the illumination detected in illuminance transducer 110 is believed
Breath is output in imageing sensor 140.
Further, imageing sensor 140 in the image input signal applied from camera lens 120 detection according to motion whether,
Optionally control light-emitting component 130 open/closing motion.
Recently, in order to improve in terminal market for monitoring the camera of use or door-phone (Door phone) etc.
(Camera) raising of low-light (level) light sensitivitys, with LED(Light Emitting Diode, light emitting diode) or
IR-LED(Infrared Light Emitting Diode, infrared light-emitting diode) it is that fundamental uses.That is,
Control light-emitting component 130 for the illumination according to surrounding, use illuminance transducer 110.
Imageing sensor 140 in order to receive illuminance transducer 110 as above testing result after perform at signal
Reason, and it is provided with analog-digital converter.
Further, imageing sensor 140 shoots subject by camera lens 120, defeated by simulation or digital video image
Go out signal and be output in storage device 200.
That is, optical imagery (that is, the optical subject that imageing sensor 140 will be inputted by outside camera lens 120
Signal) be converted to output after the signal of telecommunication.Here, the signal of telecommunication that every frame (Frame) exports is referred to as two field picture.
Imageing sensor 140 output has the two field picture of the frame frequency of certain frame frequency (Frame rate) or change.Here,
Imageing sensor 140 is CCD(Charge Coupled Device) type or complementary metal oxide silicon (CMOS,
Complementary Metal-Oxide-Silicon) type.
Further, light-emitting component 130 is by light emitting diode) (LED；Light Emitting Diode) or infrared ray (IR；
Infrared) light emitting diode (LED) is constituted such that it is able to infrared light sources is output in outside.
Imageing sensor 140 is changed the image obtained by camera lens 120 and picture output signal is output in storage device
200。
Further, in embodiments of the invention, imageing sensor 140 detects the action of human body, animal or object by image
Output signal is output in storage device 200.
Such as, when imageing sensor 140 is applied in security system, if detected in imageing sensor 140
Human body or the presence or absence of animal, then be stored in image storage device 200, if it is confirmed that human body or the existence of animal, then exist
Outside generation warning tones.
Synchronizing indicator 210 is detecting synchronizing signal from the analog picture signal that imageing sensor 140 applies.Simulation drawing
Image signal all includes synchronizing signal in every frame.If be detected that synchronizing signal as above, then it represents that input image
Signal.
Therefore, synchronizing indicator 210 is detecting the feelings of synchronizing signal from the picture signal that imageing sensor 140 applies
Under condition, it is identified as detecting motion, picture signal is stored in memorizer 220.
Memorizer 220 can be presented as hard disk etc., the picture signal that storage is applied by synchronizing indicator 210.
Fig. 3 is the detailed structure view of the imageing sensor about Fig. 2.
Imageing sensor 140 includes analog-digital converter 141, control unit 142, motion detector 143, numeral mould
Intend transducer 144(DAC；Digital Analog Converter) and luminous controling unit 145.
Here, be located at the analog-digital converter 141(ADC of the inside of imageing sensor 140；Analog-Digital
Converte) analog information of illuminance information correspondence applied from illuminance transducer 110 is converted to digital signal, comes defeated
For control unit 142.
Further, the digital signal applied from analog-digital converter 141 is output in luminous controling unit by control unit 142
145, and the image letter of the subject shot from the camera lens 120 of imageing sensor 140 is controlled according to internal control signal
Number, thus it is output in motion detector 143.
Further, embodiments of the invention are not provided with single pir sensor, and can wrap in imageing sensor 140
Include motion detector 143 to detect the action of human body or animal.Further, can be detected by imageing sensor 140
Pir sensor is the movement of the object that can not detect whether.
That is, motion detector 143 is detecting the generation of motion with or without inciting somebody to action from the picture signal that control unit 142 applies
Power supply cut-off signal P_OFF is output in digital analog converter 144, and is exported by LED control signal LED_CON
In luminous controling unit 145.
Further, digital analog converter 144, will be from control unit 142 according to the control of power supply cut-off signal P_OFF
The digital image signal applied is converted to analogue signal, thus picture output signal is optionally output in storage device
200。
Further, luminous controling unit 145 is according to the illuminance information applied from control unit 142 and from motion detector 143
The LED control signal LED_CON applied, controls the operating state of illuminating part 130, and according to level of illumination and fortune
Whether dynamic detection to be, optionally control to be located at illuminating part 130 light-emitting component open/closing motion.
Here, illuminating part 130 preferably includes light emitting diode (LED；Light Emitting Diode) or infrared ray (IR；
Infrared) light-emitting component of light emitting diode (LED) etc..
Further, luminous controling unit 145 storage is for controlling the action message of the opening of illuminating part 130/closing motion.
Thus, luminous controling unit 145, according to the action message led from motion detector 143, will be used for controlling to send out
The action control signal of the action in light portion 130 is output in illuminating part 130.
Illustrate that the course of action with the imageing sensor 140 of configuration as described above is as follows with reference to Fig. 4.
(such as, motion detector 143, when detecting motion from the picture signal that control unit 142 applies, does not activates
The grade of logic low) power supply cut-off signal P_OFF is output in digital analog converter 144, activates (such as, logic
High grade) LED control signal LED_CON is output in luminous controling unit 145.
In embodiments of the invention, according to the power supply cut-off signal exported from motion detector 143 whether by P_OFF's
Activate and whether determine the output of digital analog converter 144.
That is, in the case of detecting motion from picture signal, digital analog converter 144 becomes operating state to come as former state
Output image signal, luminous controling unit 145 becomes operating state to export the control signal for opening illuminating part 130.
Now, digital analog converter 144 is only at the power supply cut-off signal applying not activate from motion detector 143
In the case of P_OFF, picture output signal is output in storage device 200.
On the contrary, motion detector 143 be not detected by from the picture signal that control unit 142 applies motion in the case of,
Activate (such as, the grade of logic high) power supply cut-off signal P_OFF and be output in digital analog converter 144, do not swash
(such as, the grade of logic low) alive is output in luminous controling unit 145.
That is, in the case of not detecting motion from picture signal, it is supplied in numeral according to power supply cut-off signal P_OFF
The power supply of analog converter 144 is disconnected, thus not output image signal, luminous controling unit 145 output is used for disconnecting
The control signal of illuminating part 130.
Further, the synchronizing indicator 210 of storage device 200 is at the analog image letter applied from digital analog converter 144
Synchronizing signal is detected in number.
That is, in the case of applying analog picture signal from digital analog converter 144, represent in motion detector 143
The situation of motion detected.Therefore, synchronizing indicator 210 detects synchronizing signal and analog picture signal is stored in storage
Device 220.
On the contrary, in the case of not applying analog picture signal from digital analog converter 144, represent at motion detector
143 situations being not detected by motion, thus, store device 200 action with the power-saving mode.Due to synchronizing indicator 210
In synchronizing signal can not be detected, thus analog picture signal is not stored in memorizer 220 in energy-saving mode.
Hereafter, in the case of digital analog converter 144 to synchronizing indicator 210 applies picture signal at this, storage
Device 200 terminates energy-saving mode, and picture signal is stored in memorizer 220.
Further, according to the LED control signal LED_CON's from motion detector 143 output in embodiments of the invention
Whether activate, whether determine the output of luminous controling unit 145.
With reference to Fig. 4, motion detector 143 is detecting vertical synchronizing signal from the picture signal that control unit 142 applies.
Here, motion detector 143 is not corresponding every frame (Frame) performs motion detection action, corresponding every frame performs
Motion detection action only once.Such as, motion detector 143 judges the detection of motion according to the T3 region of Fig. 4
Whether.Now, the operating distance of motion detector 143 detection motion sets according to the information of the image inputted.
Further, in the general action pattern of T1 as detecting the operating space of motion in motion detector 143, energy
Illuminating part 130 is enough made to be always in low-light (level).To this end, motion detector 143 is by LED control signal LED_CON
Activating is the high-grade luminous controling unit 145 that is output in, and is not activated by power supply cut-off signal P_OF and comes defeated into inferior grade
For digital analog converter 144.
That is, detect under the general action pattern of state of motion, motion control unit 145 activates light emitting control letter
Exporting after number LED_CON, illuminating part 130 control is formed in low-light (level) one-tenth open mode by luminous controling unit 145.
Further, motion detector 143 is in the case of frame (Frame) period is not detected by motion, in order to reduce power consumption
Amount, as T2 region is converted to power-down mode (Power down mode).
Such as, in the case of motion detector 143 is not detected by motion during the T4 region of Fig. 4, as T2 enters into
Power-down mode.Now, motion detector 143 enter power-down mode T4 frame period can according to make employment intention and
Set..
Further, in the power-down mode region of T2, LED control signal LED_CON is not activated and exports for inferior grade
In luminous controling unit 145, power supply cut-off signal P_OFF is activated after high-grade, be output in digital analog converter
144。
Now, in the power-down mode region of T2, LED control signal LED_CON is not the most not activate as low etc.
Level state, but when motion detection action, in order to improve illumination, with frame for interval, switching (Toggling) becomes height
Grade and inferior grade.
That is, in power-down mode, if A, B are in order to maintain suitable illumination in the frame that motion detection action starts, motion
Detector 143 only motion detection action executing before 1 frame and motion detection action executing frame in by light emitting control believe
Number LED_CON controls into state of activation.
That is, in the case of in power-down mode, LED control signal LED_CON applies with state of activation, in order in motion
Detector 143 performs motion detection action, there is shown image illumination should reach the situation of certain level.Thus, luminous
Control unit 145 opens illuminating part 130.
On the contrary, in the case of in power-down mode, LED control signal LED_CON applies with not state of activation, in motion
Detector 143 does not perform motion detection action, represents that the illumination of image can also be not up to the situation of certain level.
Thus, luminous controling unit 145 closes illuminating part 130.
Hereafter, in the case of motion detector 143 detects motion, terminal node power mode also opens illuminating part at this
130。
On the other hand, the mode moved from motion detector 143 detection as above can have several.
Such as, through following process: receive the process of two field picture from control unit 142；Generate the frame figure of the existing frame received
The process of the differential image between the two field picture of picture and before frame；Differential image projection is obtained projection data at reference axis
Process；Process from projection data characteristic information extraction；Analyze the process of the track of characteristic information；And, utilize
The track ribbon analyzed obtains the process of the movable information of subject.
Describe its course of action in detail as follows.
First, received from camera lens 120 (or, non-sequential) two field picture successively by control unit 142.Received
Two field picture be probably coloured image or black white image.In coloured image, can former state application coloured image or be converted to
Black white image.In black white image, have during the motion of detection subject and can reduce motion detector 143
The effect of integral operation amount.
The two field picture being input into motion detector 143 is stored in image storage.The frame received is assumed to be n-th frame
Time, the two field picture of the frame ((n-1)th frame) before storage is equivalent in image storage.
Utilize and be input into the existing two field picture (n-th frame image) of motion detector 143 and read from image storage
Two field picture ((n-1)th frame) before generates differential image.For any pixel position, by two two field pictures it
The pixel value that the difference of front pixel value is set as in differential image.
When generating differential image, can add according to motion detection amplitude and perform cropping (Cropping) or covering of two field picture
The work of lid (Masking) etc..Here, motion detection amplitude represents motion detector according to an embodiment of the invention
The direction of motion of 143 detectable subjects, motion size etc..
Motion detector 143 to differential image projection (Projection) as above at reference axis.Differential image is thrown
Reflect on reference axis, thus obtain the data for projection of corresponding reference axis.
Further, the data of projection are according to method set in advance in groups, the difference next life of each group by having distinguished
Become characteristic information.The characteristic information generated is stored in characteristic information memorizer, is applied to obtain the movable information of track etc.
Aspect.
Namely be based on characteristic information and judge whether the track of the characteristic information according to time process has form set in advance
(such as, sinusoidal (sine) waveform), thus determine the motion of subject with or without.There is form set in advance
In the case of, if its size is more than the marginal value of regulation, then it is judged as entering centered by detection reference and to specific direction
Row motion.
Further, motion can be detected as follows from motion detector 143.
With electricity after subject detection light in be provided with the array of pixels of imageing sensor 140 of pixel with ranks form
Signal exports.The signal of telecommunication of array of pixels is chosen as ten units by motion detector 143.
Further, the signal of telecommunication that will be selected to be ten units is relatively output as the digital data of 1 bit compared with reference voltage.
Hereafter, the interim digital data storing 1 bit, and frame and the present frame before of relatively more interim storage.Its comparative result,
Calculate and be included in " 1 " or the number of " 0 " of data, and this is judged action to comparing with reference value set in advance
With or without.
Further, motion detector 143 can be according to following manner detection motion.
First, image graph picture to be inputted is converted to digital data by analog-digital converter 141, and is output as now
Frame data.Row pixel value is stored as reference frame data after ten Conversion of measurement unit orders by motion detector 143.And
And, the existing frame data of movement images and the reference frame data with storage calculate correlated count and store its result.
Hereafter, the maximum of retrieval correlated count, and export its machine motion vector corresponding.Further, the machine is utilized to transport
Dynamic vector seeks the motion vector of whole image.
Picture signal, only in the case of the detection that there is picture signal, is stored in by embodiments of the invention as above
Memorizer 220, thus, it is possible to prevent load to be stuck in the phenomenon of memorizer 220, it is possible to uses memorizer 220 at leisure
Memory space, and can aid in the life-span of product extending storage device 200.Further, it is possible to minimizing picture signal
According to input/output, the power consumption flow that drives and store.
Further, embodiments of the invention detect illumination by illuminance transducer 110, in the environment of the dark of low-light (level),
Light-emitting component is opened by illuminating part 130.Therefore, receive the image about motion from imageing sensor 140, and pass through
Motion detector 143 detection motion.
Further, embodiments of the invention are under low photograph, and LED control signal LED_CON only opens when activating
Illuminating part 130 such that it is able to reduce power consumption and the caloric value of the system that illuminating part 130 causes.
Particularly, embodiments of the invention are by the motion detection function according to motion detector 143 with according to light emitting control list
The control function of the illuminating part 145 of unit 145 is located at imageing sensor 140 simultaneously, comes only in the case of detecting motion
Open illuminating part 130 such that it is able to reduce unnecessary power consumption phenomenon.
That is, embodiments of the invention close illuminating part 130 in not performing the frame of motion detection function (Frame), and
Only in the frame performing motion detection function, open illuminating part 130 such that it is able to reduce power consumption based on illuminating part 130
And caloric value.
Embodiments of the invention as above can be applicable to closed-circuit television (CCTV；Closed Circuit Television),
Digital video recorder (DVR, Digital Video Recoder), the machine of taking the photograph (Door camera) of door, digital filming
Machine (digital camera), field camera (camcorder) or be attached to the camera etc. of portable communication
Image device.
Claims (12)
1. an imageing sensor, it is characterised in that
Including:
Analog-digital converter, its illumination intensity signal to applying from illuminance transducer carries out signal processing；
Control unit, it receives the digital signal and picture signal applied from above-mentioned analog-digital converter and carries out at signal
Reason；
Motion detector, it detects motion out-put supply cut-off signal and luminescence from the output image of above-mentioned control unit
Control signal；
Digital analog converter, the output image of above-mentioned control unit is converted to analogue signal by it, and according to above-mentioned power supply
Whether cut-off signal is activated to optionally export the picture output signal being converted into above-mentioned analogue signal；And
Luminous controling unit, it opens/closing motion according to what above-mentioned LED control signal optionally controlled illuminating part,
Wherein, in the case of above-mentioned motion being detected, do not activate above-mentioned power supply cut-off signal to export the output of above-mentioned image
Signal, activates above-mentioned LED control signal and exports the control signal for opening above-mentioned illuminating part,
In the case of being not detected by above-mentioned motion, activate above-mentioned power supply cut-off signal to block above-mentioned picture output signal
Output, does not activate above-mentioned LED control signal and exports the control signal for closing above-mentioned illuminating part.
Imageing sensor the most according to claim 1, it is characterised in that above-mentioned motion detector is believed from above-mentioned image
Detect synchronizing signal in number, and the frame of corresponding every given amount is from the most above-mentioned motion of above-mentioned synchronization signal detection.
Imageing sensor the most according to claim 1, it is characterised in that above-mentioned motion detector is believed from above-mentioned image
Detect synchronizing signal in number, change in the case of motion not detected during the frame of given amount from above-mentioned synchronizing signal
For power-down mode.
Imageing sensor the most according to claim 3, it is characterised in that when above-mentioned power-down mode, above-mentioned motion
Detector only optionally activates luminescence in 1 frame performed before motion detection action and the frame performing motion detection action
Control signal also exports.
5. the filming apparatus including imageing sensor, it is characterised in that
Including:
Illuminance transducer, it detects illuminance information,
Illuminating part, its grade action accordingly with above-mentioned illuminance information, and according to action control signal carry out opening/
Closing motion, and
Imageing sensor, it detects motion from the picture signal applied by camera lens, selects according to whether check motion
Property ground output picture output signal, and optionally export above-mentioned action control signal；
Above-mentioned imageing sensor includes:
Analog-digital converter, it carries out signal processing to the above-mentioned illuminance information applied from above-mentioned illuminance transducer；
Control unit, it receives the digital signal and picture signal inputted from above-mentioned analog-digital converter and carries out at signal
Reason；
Motion detector, it detects motion out-put supply cut-off signal and luminescence from the output image of above-mentioned control unit
Control signal；
Digital analog converter, the output image of above-mentioned control unit is converted to analogue signal by it, and according to above-mentioned power supply
Whether cut-off signal is activated to optionally export the above-mentioned picture output signal being converted into above-mentioned analogue signal；And
Luminous controling unit, it opens/closing motion according to what above-mentioned LED control signal optionally controlled illuminating part,
Wherein, in the case of above-mentioned motion being detected, do not activate above-mentioned power supply cut-off signal to export the output of above-mentioned image
Signal, activates above-mentioned LED control signal to make above-mentioned illuminating part become open mode,
In the case of being not detected by above-mentioned motion, activate above-mentioned power supply cut-off signal to block above-mentioned picture output signal
Output, does not activate above-mentioned LED control signal to make above-mentioned illuminating part become closed mode.
The filming apparatus including imageing sensor the most according to claim 5, it is characterised in that above-mentioned motion detects
Device detects synchronizing signal from above-mentioned picture signal, and the frame of corresponding every given amount once from above-mentioned synchronization signal detection
State motion.
The filming apparatus including imageing sensor the most according to claim 5, it is characterised in that above-mentioned motion detects
Device detects synchronizing signal from above-mentioned picture signal, fortune do not detected from above-mentioned synchronizing signal during the frame of given amount
Power-down mode is converted in the case of Dong.
The filming apparatus including imageing sensor the most according to claim 7, it is characterised in that at above-mentioned power down mould
During formula, above-mentioned motion detector only selects in 1 frame performed before motion detection action and the frame performing motion detection action
Activate to selecting property LED control signal and export.
The filming apparatus including imageing sensor the most according to claim 5, it is characterised in that also include for depositing
The storage device of the above-mentioned picture output signal that storage applies from above-mentioned imageing sensor.
The filming apparatus including imageing sensor the most according to claim 9, it is characterised in that above-mentioned storage fills
Put from the above-mentioned picture output signal applied by above-mentioned imageing sensor detection synchronizing signal, and only detect above-mentioned with
Above-mentioned picture signal is stored in the case of step signal.
11. filming apparatus including imageing sensor according to claim 5, it is characterised in that above-mentioned illuminating part
Including infrared light-emitting diode.
12. filming apparatus including imageing sensor according to claim 5, it is characterised in that above-mentioned illuminating part
Including light emitting diode.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2011-0015149 | 2011-02-21 | ||
| KR1020110015149A KR101262745B1 (en) | 2011-02-21 | 2011-02-21 | Image sensor and photographing apparatus having the same |
| PCT/KR2012/001255 WO2012115408A2 (en) | 2011-02-21 | 2012-02-20 | Image sensor and photographing apparatus including same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103404125A CN103404125A (en) | 2013-11-20 |
| CN103404125B true CN103404125B (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280008836.5A Active CN103404125B (en) | 2011-02-21 | 2012-02-20 | Imageing sensor and include the filming apparatus of this imageing sensor |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR101262745B1 (en) |
| CN (1) | CN103404125B (en) |
| WO (1) | WO2012115408A2 (en) |
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| KR102116090B1 (en) * | 2013-09-27 | 2020-05-27 | 한화테크윈 주식회사 | Camera compressing data of moving image |
| KR102074385B1 (en) * | 2013-09-30 | 2020-02-06 | 한국전자통신연구원 | Control apparatus and method for providing control signal thereof |
| KR102290287B1 (en) | 2014-10-24 | 2021-08-17 | 삼성전자주식회사 | IMAGE SENSOR GENERATING IMAGE SIGNAL AND PROXIMITY SIGNAL simultaneously |
| CN105025228A (en) * | 2015-07-22 | 2015-11-04 | 深圳市万姓宗祠网络科技股份有限公司 | Method for recording video and images continuously based on picture states |
| US20170193782A1 (en) * | 2015-12-30 | 2017-07-06 | Google Inc. | Passive infrared systems and methods that use pattern recognition to distinguish between human occupants and pets |
| KR20180104970A (en) * | 2017-03-14 | 2018-09-27 | 엘지전자 주식회사 | Terminal and method of controlling the same |
| CN108718393B (en) * | 2018-08-03 | 2024-04-05 | 思特威(上海)电子科技股份有限公司 | CMOS image sensor and monitoring method thereof |
| CN109287052A (en) * | 2018-11-07 | 2019-01-29 | 泉州思力科电子科技有限公司 | A kind of control method of lamp switch chip and the lamp switch chip |
| KR102284187B1 (en) * | 2019-04-02 | 2021-08-02 | 엘지이노텍 주식회사 | Apparatus for stereo matching |
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| CN1180414A (en) * | 1995-08-04 | 1998-04-29 | 约瑟夫·黎 | Motion detection imaging device and method |
| KR20010097017A (en) * | 2000-04-19 | 2001-11-08 | 박성철, 주한용 | Setting method for detecting motion in the security system |
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|---|---|---|---|---|
| JP2004200989A (en) * | 2002-12-18 | 2004-07-15 | Fuji Photo Film Co Ltd | Imaging apparatus and supervisory system |
| KR20040074470A (en) * | 2003-02-19 | 2004-08-25 | 삼성전자주식회사 | Method for operating observation system |
| JP2009077349A (en) * | 2007-09-25 | 2009-04-09 | Funai Electric Co Ltd | Video display apparatus |
-
2011
- 2011-02-21 KR KR1020110015149A patent/KR101262745B1/en active IP Right Grant
-
2012
- 2012-02-20 WO PCT/KR2012/001255 patent/WO2012115408A2/en active Application Filing
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1180414A (en) * | 1995-08-04 | 1998-04-29 | 约瑟夫·黎 | Motion detection imaging device and method |
| KR20010097017A (en) * | 2000-04-19 | 2001-11-08 | 박성철, 주한용 | Setting method for detecting motion in the security system |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20120095681A (en) | 2012-08-29 |
| WO2012115408A3 (en) | 2012-11-29 |
| KR101262745B1 (en) | 2013-05-10 |
| CN103404125A (en) | 2013-11-20 |
| WO2012115408A2 (en) | 2012-08-30 |
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