CN108270976A - With the image-sensing method and imaging sensor for rolling time for exposure compensation - Google Patents
With the image-sensing method and imaging sensor for rolling time for exposure compensation Download PDFInfo
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7235—Details of waveform analysis
- A61B5/725—Details of waveform analysis using specific filters therefor, e.g. Kalman or adaptive filters
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- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/1347—Preprocessing; Feature extraction
- G06V40/1359—Extracting features related to ridge properties; Determining the fingerprint type, e.g. whorl or loop
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/1365—Matching; Classification
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- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/1382—Detecting the live character of the finger, i.e. distinguishing from a fake or cadaver finger
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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
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/73—Circuitry for compensating brightness variation in the scene by influencing the exposure time
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
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Abstract
The present invention proposes a kind of image-sensing method and imaging sensor for having and rolling time for exposure compensation.It is included with the image-sensing method for rolling time for exposure compensation：Emit light to an object to be sensed to generate an image；One sensing element is provided, there are multiple sensing units, be arranged as multiple rows and multiple row；The sensing element is made to receive the image with roller Exposure mode；Control a rolling shutter so that when the sensing element receives the image with roller Exposure mode, adaptability determines the time for exposure of at least one exposure row according to an image brightness signal.
Description
Technical field
The present invention relates to it is a kind of have roll the time for exposure compensation image-sensing method and imaging sensor, particularly
Refer to it is a kind of according to image brightness signal and adaptability determine at least one exposure row time for exposure have roll the time for exposure mend
The image-sensing method and imaging sensor repaid.
Background technology
The prior art can be divided into the image-sensing method and imaging sensor of roller Exposure mode and be utilized machinery
Formula rolling shutter and electronic type rolling shutter two ways.No matter mechanical rolling shutter or electronic type rolling shutter, example are used
Such as in the application range of identification of fingerprint, there is the mode because of light source arrangement so that in different lines or do not going together in its exposure
The image photograph for sensing image afterwards and generating has the situation of brightness irregularities so that fingerprint is difficult to recognize.
In view of this, i.e. in view of the above shortcomings of the prior art, proposition is a kind of to fit the present invention according to image brightness signal
Answering property determines the image-sensing method and image sensing with the compensation of rolling time for exposure of the time for exposure of at least one exposure row
Device.
Invention content
It is an object of the invention to overcome the deficiencies in the prior art and defect, propose a kind of with rolling time for exposure benefit
The image-sensing method and imaging sensor repaid, can according to image brightness signal and adaptability determine at least one exposure row
Time for exposure so that image photograph brightness uniformity, it is readily discernible.
In order to achieve the above-mentioned object of the invention, one of viewpoint is sayed, when there is rolling exposure the present invention provides one kind
Between the image-sensing method that compensates, comprising：Emit light to an object to be sensed to generate an image；One sensing element is provided, is had
There are multiple sensing units, be arranged as multiple rows (column) and multiple row (row)；The sensing is made with roller Exposure mode
Element receives the image；Control a rolling shutter so that when the sensing element receives the image with roller Exposure mode, root
According to an image brightness signal, adaptability determines the time for exposure of at least one exposure row.
In wherein a kind of preferred embodiment, one rolling shutter of control so that the sensing element is exposed with roller
When mode receives the image, according to an image brightness signal the step of time for exposure of at least one exposure row of adaptability decision,
Including：Controlling the rolling shutter so that the sensing element is during steady, when receiving the image with roller Exposure mode,
One time for exposure first time of exposure row is a default time for exposure, and completes steady image scanning, and generate according to this
The image brightness signal；And during the preparation during a compensation later, according to the image brightness signal, and in the compensation
Period determines second of time for exposure of at least one exposure row；Wherein, when which includes to expose for second
Between.
In the foregoing embodiments, this is according to the image brightness signal, and during being decided by the compensation, this at least one is exposed
It the step of one second of time for exposure of light row, preferably also includes：According to a default target value, and during the compensation, certainly
Second of time for exposure of the fixed at least one exposure row.
In the foregoing embodiments, image brightness signal, preferably according to an original image luminance signal via flat
Cunningization treated result.
In wherein a kind of preferred embodiment, light source neighbour is placed in a first row in multiple row and/or one last
The outside of one row.
Another viewpoint is sayed, the present invention provides a kind of image-sensing method for having and rolling time for exposure compensation, packets
Contain：Emit light to an object to be sensed to generate an image；One sensing element is provided, there are multiple sensing units, be arranged as more
A row (column) and multiple row (row)；The sensing element is made to receive the image with roller Exposure mode；One rolling of control
Dynamic shutter so that the sensing element is during steady, and when receiving the image with roller Exposure mode, setting at least one exposes
One time for exposure first time of light row is a default time for exposure, and completes steady image scanning, and generate an image according to this
Luminance signal；And during the preparation during a compensation later, according to the image brightness signal, determine that an at least unit exposes
Between light time, and the scanning of an at least cell picture is completed, and is scanned according to the preparation image scanning and an at least cell picture,
Generate a combined image information.
It, should be during the preparation during a compensation later, according to the brightness of image in wherein a kind of preferred embodiment
Signal, determine an at least unit time for exposure, and complete an at least cell picture scanning, and according to the preparation image scanning with
A step of at least cell picture scans, one combined image information of generation includes：According to the image brightness signal and a brightness
Threshold value, and a luminance contour line is generated, and then during the compensation, according to the luminance contour line, determine an at least unit
Time for exposure, and complete at least cell picture scanning.
In the foregoing embodiments, should during the preparation after during a compensation, according to the image brightness signal, certainly
Fixed at least unit time for exposure, and complete the scanning of an at least cell picture, and according to the preparation image scanning and this at least one
The step of cell picture scans, one combined image information of generation includes：A single-row image in the image brightness signal is bright
Signal is spent, determines an at least unit time for exposure, and completes at least cell picture scanning.
In the foregoing embodiments, light source neighbour is placed in the outer of a first row in multiple row and/or a last column
Side.
In wherein a kind of preferred embodiment, which includes a finger, and the image includes a fingerprint image
Picture, source emissioning light line to the finger, to generate the fingerprint image.
With regard to another viewpoint say, the present invention provides it is a kind of have roll the time for exposure compensation imaging sensor, to
An image is sensed, it includes：One sensing element has multiple sensing units, is arranged as multiple rows (column) and multiple row
(row), which receives the image with roller Exposure mode；One light source, to emit light to an object to be sensed
To generate the image；And a time for exposure compensation circuit, it couples with the sensing element, to control a rolling shutter, makes
Sensing element when receiving the image with roller Exposure mode, according to an image brightness signal, adaptability determines at least
The time for exposure of one exposure row.
In wherein a kind of preferred embodiment, which controls the rolling shutter so that the sensing
Element is during steady, and when receiving the image with roller Exposure mode, time for exposure first time of exposure row is one
The default time for exposure, and steady image scanning is completed, and generate the image brightness signal according to this；And during the preparation it
During latter compensation, which determines this at least according to the image brightness signal, and during the compensation
One second of time for exposure of one exposure row；Wherein, which includes second of time for exposure.
In the foregoing embodiments, the time for exposure compensation circuit is also according to a default target value, and in the compensation phase
Between, determine second of time for exposure that at least one exposure arranges.
In the foregoing embodiments, during the preparation in the image brightness signal, be according to an original image brightness believe
Number via the result after smoothing techniques.
In wherein a kind of preferred embodiment, light source neighbour is placed in a first row in multiple row and/or one last
The outside of one row.
With regard to another viewpoint say, the present invention provides it is a kind of have roll the time for exposure compensation imaging sensor, to
An image is sensed, it includes：One sensing element has multiple sensing units, is arranged as multiple rows (column) and multiple row
(row), which receives the image with roller Exposure mode；One light source, to emit light to an object to be sensed
To generate the image；And a time for exposure compensation circuit, it couples with the sensing element, to control a rolling shutter, makes
The sensing element during steady, when receiving the image with roller Exposure mode, the one the of at least one exposure row of setting
The single exposure time is a default time for exposure, and completes steady image scanning, and generate an image brightness signal according to this,
And during the preparation, according to the image brightness signal, an at least unit time for exposure is determined during a compensation later, and it is complete
It scans into an at least cell picture, and is scanned according to the preparation image scanning and an at least cell picture, generate a constitutional diagram
As information.
In wherein a kind of preferred embodiment, the time for exposure compensation circuit is bright according to the image brightness signal and one
Threshold value is spent, and generates a luminance contour line, and then during the compensation, according to the luminance contour line, determine an at least unit
Time for exposure, and complete at least cell picture scanning.
In the foregoing embodiments, a single-row image of the time for exposure compensation circuit in the image brightness signal
Luminance signal determines an at least unit time for exposure, and completes at least cell picture scanning.
In the foregoing embodiments, light source neighbour is placed in the outer of a first row in multiple row and/or a last column
Side.
In wherein a kind of preferred embodiment, which includes a finger, and the image includes a fingerprint image
Picture, source emissioning light line to the finger, to generate the fingerprint image.
Below by way of specific embodiment elaborate, the purpose of the present invention, technology contents, feature should be easier to understand
And its effect of realized.
Description of the drawings
Fig. 1 shows the flow chart of the image-sensing method according to the present invention for having and rolling time for exposure compensation；
Fig. 2A -2G are shown according to first embodiment of the invention；
Fig. 3 A-3E show second embodiment according to the present invention；
Fig. 4 shows third embodiment according to the present invention.
Symbol description in figure
Reg_perline_target default target values
S1~S4 steps
T, Tint, Tint (i) time
Specific embodiment
Attached drawing in the present invention belongs to signal, the coupling relationship and each signal waveform for being mostly intended to represent between each circuit
Between relationship, as circuit, signal waveform and frequency then and not according to ratio draw.
With reference to Fig. 1, wherein showing according to a viewpoint, the present invention provides a kind of figures for having and rolling time for exposure compensation
As method for sensing, wherein including：Emit light to an object to be sensed to generate an image (S1)；One sensing element is provided, is had
Multiple sensing units are arranged as multiple rows (column) and multiple row (row) (S2)；The sense is made with roller Exposure mode
It surveys element and receives the image (S3)；And one rolling shutter of control so that the sensing element is received with roller Exposure mode
During the image, according to an image brightness signal, adaptability determines the time for exposure (S4) of at least one exposure row.
Roller Exposure mode is the side for making sensing element exposure using electronic type rolling shutter or mechanical rolling shutter
Formula.Electronic type rolling shutter is widely used in complementary metal oxide semiconductor (complementary metal oxide
Semiconductor, CMOS) imaging sensor is a kind of electronic signal scan mode, but it is such as mechanical rolling shutter
Running as, from top to bottom (or opposite) scans by column, this is well known to those skilled in the art, and it will not be described here.
According to the present invention it is possible to provide a light source, transmitting light generates image to object to be sensed.For example, it treats
Sensing object is finger, and light source is such as, but not limited to light emitting diode (light emitting diode, LED).When LED emits
Light to finger interior, light scatters in finger, reflects, reflect after the image that generates be fingerprint image, this mode is one kind
The mode of " light finger " (light finger).Sensing element is such as, but not limited to cmos image sensor, has multiple
Cmos image sensing unit is arranged as multiple rows (column) and multiple row (row).
Sensing element is made to receive the image for example using rolling shutter with roller Exposure mode, pass cmos image
Cmos image sensing unit in sensor exposes by column, to receive fingerprint image.It is so-called to expose by column, a unlimited only row
Cmos image sensing unit exposes simultaneously, can also index series expose simultaneously.Fingerprint image is received to be also not necessarily limited to only scan one
It is secondary, repeating scrolling formula Exposure mode can be utilized and scanned repeatedly, to receive fingerprint image.
Control rolling shutter so that bright according to the image when sensing element receives the image with roller Exposure mode
Spend the time for exposure of signal and at least one exposure row of adaptability decision.That is, the time for exposure of different lines, it can basis
Image brightness signal and it is different.Wherein image brightness signal will be in rear detailed description.
The one of feature of the present invention unlike the prior art, is according to the present invention, the time for exposure of different lines,
It can be adaptively adjusted according to image brightness signal and different so that the image photograph according to caused by the present invention, it is whole
The brightness of body is relatively uniform, and image is made to become apparent from presenting.
Fig. 2A -2G are shown according to first embodiment of the invention.As shown in Figure 2 A, sensing element has multiple sensings
Unit is arranged as multiple rows (column) and multiple row (row), and the sensing unit of wherein same row is arranged along horizontal direction,
Sensing unit with a line is arranged along vertical direction.In the present embodiment, light source neighbour is placed in first row in multiple row and most
The outside of latter row, certainly, light source can also be only located at first row and last row outside of one of them.
As shown in Figure 2 B, time for exposure compensation circuit is coupled with sensing element, to control a rolling shutter (in such as figure
Anticipate shown in translucent block) so that when sensing element receives image with roller Exposure mode, according to image brightness signal
Adaptability determines the time for exposure of at least one exposure row.It should be noted that exposure row refer in roller Exposure mode, just
The row of image are received in exposure, can be single row, or multiple row as depicted.
As shown in Figure 2 C, for example, light source neighbour is placed in the outside of the first row and last row in multiple row.As before
Described, light source for example emits light to finger interior, light scatters in finger, reflects, reflect after the image that generates be fingerprint
The mode of image, i.e. " light finger " (light finger).Sensing element is sensing the fingerprint image.It should be noted that
In practical embodiment, finger for example can be close to sensing element directly or across transmission substance, in detail in this figure, for convenience of solving
It says, finger is not drawn on and is close to sensing element.Certainly, finger can not also be close to sensing element.
In the present embodiment, time for exposure compensation circuit for example controls rolling shutter so that sensing element is in the steady phase
Between, when receiving the image with roller Exposure mode, time for exposure first time of the sensing element of exposure row is a default exposure
Between light time, and steady image scanning is completed, and generate the image brightness signal according to this；And it one is mended later during the preparation
During repaying, which determines at least one exposure according to the image brightness signal, and during the compensation
Second of time for exposure of row.
Fig. 2 D are shown in the present embodiment, during the preparation, time for exposure compensation circuit control rolling shutter so that
Sensing element receives the image with roller Exposure mode, and time for exposure first time of each exposure row of sensing element is
The default time for exposure, and then the preparation image scanning is completed, and generate the image brightness signal according to this.Wherein, exposure is preset
During time is such as, but not limited to fixed one, that is, make time for exposure first time of each exposure row identical.It connects
It, such as reads the original image luminance signal that all sensing units are sensed, and by its smoothing techniques, as a result
To the image brightness signal.As shown in Figure 2 D, in the present embodiment, image brightness signal the first row by close to sources with most
Latter row are relatively high, and then relatively low in the close middle column far from light source.The image brightness signal the high then brighter, figure
The image brightness signal the low then darker.
Fig. 2 E show image brightness signal ADC and the relationship of time for exposure, and display of illustrating determines at least one exposure row
Second of time for exposure method.The time for exposure Tint and image brightness signal ADC for exposing row are generally directly proportional.Cause
This, during consideration i-th is listed in preparation, time for exposure first time is time T, and its image brightness signal adc (i)；So,
Such as using extrapolation, by the default target value reg_perline_target of image brightness signal divided by during preparation
Image brightness signal adc (i) multiplied by with time T, can obtain i-th be listed in compensation during, determine that its second of time for exposure is
Time Tint (i)=(reg_perline_target/ adc (i)) * T.
After Fig. 2 F and Fig. 2 G show the compensation image scanning during preparation image scanning and compensation during preparing respectively,
The preparation image photograph of generation and compensation image photograph.It can compare and learn, according to the present invention, through the adaptation during overcompensation
Property determine exposure row second of time for exposure after obtained compensation image photograph, clear fingerprint image can be obtained.Not
Through rolling the prior art of time for exposure compensation, after the preparation image scanning during the preparation of similar the present embodiment, generation
Prepare image photograph, since lightness is relatively uneven, can not completely obtain clear fingerprint image.This is better than for the present invention
One of feature of the prior art.
Fig. 3 A-3E show second embodiment according to the present invention.As shown in Figure 3A, this implementation and one embodiment
Difference, in this present embodiment, light source neighbour is placed in the outside of last column in multiple rows, and certainly, light source can also position
In the outside of the first row and last column or it is only located at the outside of the first row.
As shown in Figure 3B, in the present embodiment, time for exposure compensation circuit for example controls rolling shutter so that sensing
Part is during preparation, when receiving the image with roller Exposure mode, set at least one exposure row time for exposure first time as
The default time for exposure, and complete to prepare image scanning, and generate image brightness signal according to this.
Fig. 3 C are shown in the present embodiment, during the preparation, time for exposure compensation circuit control rolling shutter so that
Sensing element receives the image with roller Exposure mode, and time for exposure first time of each exposure row of sensing element is
The default time for exposure, and then the preparation image scanning is completed, and generate the image brightness signal according to this.Wherein, exposure is preset
During time is such as, but not limited to fixed one, that is, make time for exposure first time of each exposure row identical.It connects
It, such as reads the original image luminance signal that all sensing units are sensed, and by its smoothing techniques, as a result
To the image brightness signal.As shown in Figure 3 C, in the present embodiment, image brightness signal is in last column by close to sources
Brightness is relatively high, and then relatively low in the brightness close to the first ranks far from light source.The brightness of image brightness signal is got over
High then brighter, the brightness of image brightness signal the low then darker.
After preparation image scanning during Fig. 3 D display preparations, the preparation image photograph of generation.In the present embodiment, it exposes
Light time compensation circuit during the preparation after compensation during, the image brightness signal shown in C according to fig. 3 determines at least
One unit time for exposure, and the scanning of an at least cell picture is completed, and according to the preparation image scanning and an at least unit figure
As scanning, a combined image information is generated.
Specifically, since in the present embodiment, light source neighbour is placed in the outside of last column in multiple rows, due to rolling
The action of shutter so that according to the scanning direction (and vertical direction) of (or multiple row) by column, the distribution (edge with brightness height
Horizontal direction increases) it is different, therefore with the compensation way of one embodiment, that is, (or multiple row) adaptability tune by column
The time for exposure of whole exposure row, the phenomenon that still having horizontal direction brightness irregularities.Therefore, in the present embodiment, according to figure
Image brightness signal, such as, but not limited to movement images luminance signal and a luminance threshold, for example, along the every of each row
The luminance signal of one sensing unit compares the luminance threshold, by the last one no more than (or first be not less than or big
In) sensing unit of the luminance threshold, the point of a luminance contour line is selected as, the set of these points forms luminance contour
Line.
Then, such as by the highest point of the brightness of image brightness signal in the present embodiment (in the present embodiment for example but not
It is limited to the brightness of the sensing unit of last column near close to sources) as desired value, such as with aforementioned extrapolation, calculate
The different lines where point in luminance contour line, required different exposure time, as the different unit time for exposure, and
During compensation, with the different unit time for exposure, roll the cell picture scanning of time for exposure compensation.Next weight
The step of performing above-mentioned luminance contour line again, it can be deduced that an at least cell picture scans, such as repeats above-mentioned brightness wheel
The step of profile, until the brightness of all sensing units, until all reaching above-mentioned desired value；Finally such as, but not limited to utilize
The mode of high dynamic range imaging (high dynamic range imaging, HDR), will prepare image scanning with this at least one
Cell picture scans, and generates a combined image information.Wherein, the mode of HDR is well known to those skilled in the art, herein not
It gives and repeating.
As shown in FIGURE 3 E, in the present embodiment, four photos on the left of the arrow for for example representing HDR, signal is each time
Cell picture scanning after the cell picture photo that generates.Via the mode of HDR, the head that combined image information is illustrated is generated
The photo on right side.Compared to the original photo without rolling time for exposure compensation, clear fingerprint can be obtained according to the present invention
Image.
And during the preparation after compensation during, the time for exposure compensation circuit according to the image brightness signal, and
During the compensation, an at least unit time for exposure is determined, and complete the scanning of an at least cell picture, and according to the preparation figure
As scanning and at least cell picture scanning, a combined image information is generated.
Fig. 4 shows third embodiment according to the present invention.As shown in figure 4, this implementation it is different from second embodiment it
Place, in this present embodiment, a single-row image brightness signal of the time for exposure compensation circuit in image brightness signal, and
It determines an at least unit time for exposure, and completes at least cell picture scanning.When in this embodiment, to save operation
Between only choose in image brightness signal, wherein the single-row image brightness signal of a row (such as, but not limited to middle column), without
It is as in second embodiment, by all image brightness signals all compared with luminance threshold, and obtained luminance contour line.
In the present embodiment, because light source position is in the outside of last column, therefore brightness is generally to increase line by line.Therefore, it chooses
The luminance signal of each sensing unit of wherein one row (rather than each row such as second embodiment), compares the luminance threshold
By the last one sensing unit no more than (or first the be not less than or more than) luminance threshold, it is bright to be selected as one for value
Spend the point on boundary.
Then, such as by the highest point of the brightness of image brightness signal in the present embodiment (in the present embodiment for example but not
It is limited to the brightness of the sensing unit of last column near close to sources) as desired value, such as with aforementioned extrapolation, calculate
, as the unit time for exposure, and during compensation, when being exposed with the unit
Between, roll the cell picture scanning of time for exposure compensation.Next point of the above-mentioned calculating on brightness boundary is repeated
The step of, it can be deduced that an at least cell picture scans, such as repeats above-mentioned calculating the point on brightness boundary the step of,
Until the brightness of all sensing units, until all reaching above-mentioned desired value；It, will finally such as, but not limited to using the mode of HDR
Prepare image scanning to scan with an at least cell picture, generate a combined image information.
Illustrate the present invention, but described above for preferred embodiment above, be only easy to those skilled in the art
Understand present disclosure, be not used for limiting the interest field of the present invention.Under the same spirit of the present invention, this field skill
Art personnel are contemplated that various equivalence changes.For example, icon is directly connected in each embodiment two circuits or interelement, can insert
Putting does not influence other circuits or element of major function, therefore " couples " and should be regarded as including directly or indirectly connecting.For another example, institute
There is the variation in embodiment, use etc. can be interacted.In every case it is such, it according to the present invention can all teach and analogize and obtain, because
This, the scope of the present invention should cover above-mentioned and other all equivalence changes.
Claims (20)
1. a kind of have the image-sensing method for rolling time for exposure compensation, which is characterized in that includes：
Emit light to an object to be sensed to generate an image；
One sensing element is provided, there are multiple sensing units, be arranged as multiple rows and multiple row；
The sensing element is made to receive the image with roller Exposure mode；
Control a rolling shutter so that when the sensing element receives the image with roller Exposure mode, according to a brightness of image
The time for exposure of signal and at least one exposure row of adaptability decision.
2. according to claim 1 have the image-sensing method for rolling time for exposure compensation, wherein, which rolls
Shutter so that when the sensing element receives the image with roller Exposure mode, adaptability is determined according to an image brightness signal
The step of time for exposure of fixed at least one exposure row, including：
Control the rolling shutter so that the sensing element is during steady, should when receiving the image with roller Exposure mode
One time for exposure first time of exposure row is a default time for exposure, and completes steady image scanning, and generate the figure according to this
Image brightness signal；And
During the preparation after one compensation during, according to the image brightness signal, and during the compensation, determine this at least one
Expose second of time for exposure of row；
Wherein, which includes second of time for exposure.
3. according to claim 2 have the image-sensing method for rolling time for exposure compensation, wherein, this is according to the image
It the step of luminance signal, and during being decided by the compensation, second of time for exposure of at least one exposure row, also includes：Root
According to a default target value, and during the compensation, second of time for exposure of at least one exposure row is determined.
4. according to claim 3 have the image-sensing method for rolling time for exposure compensation, wherein, brightness of image letter
Number, it is via the result after smoothing techniques according to an original image luminance signal.
5. according to claim 1 have the image-sensing method for rolling time for exposure compensation, wherein, light source neighbour is placed in
The outside of a first row and/or last row in multiple row.
6. a kind of have the image-sensing method for rolling time for exposure compensation, which is characterized in that includes：
Emit light to an object to be sensed to generate an image；
One sensing element is provided, there are multiple sensing units, be arranged as multiple rows and multiple row；
The sensing element is made to receive the image with roller Exposure mode；
Controlling a rolling shutter so that the sensing element is during steady, when receiving the image with roller Exposure mode, if
One time for exposure first time of fixed at least one exposure row is a default time for exposure, and completes steady image scanning, and according to this
Generate an image brightness signal；And
After during the preparation during a compensation, according to the image brightness signal, an at least unit time for exposure is determined, and it is complete
It scans into an at least cell picture, and is scanned according to the preparation image scanning and an at least cell picture, generate a constitutional diagram
As information.
7. according to claim 6 have the image-sensing method for rolling time for exposure compensation, wherein, it should be in the preparatory stage
Between latter compensation during, according to the image brightness signal, determine an at least unit time for exposure, and complete an at least unit figure
The step of picture scans, and is scanned according to the preparation image scanning and an at least cell picture, one combined image information of generation is wrapped
It includes：According to the image brightness signal and a luminance threshold, and a luminance contour line is generated, and then during the compensation, according to this
Luminance contour line determines an at least unit time for exposure, and completes at least cell picture scanning.
8. according to claim 6 have the image-sensing method for rolling time for exposure compensation, wherein, it should be in the preparatory stage
Between latter compensation during, according to the image brightness signal, determine an at least unit time for exposure, and complete an at least unit figure
The step of picture scans, and is scanned according to the preparation image scanning and an at least cell picture, one combined image information of generation is wrapped
It includes：A single-row image brightness signal in the image brightness signal determines an at least unit time for exposure, and completes to be somebody's turn to do
An at least cell picture scans.
9. according to claim 6 have the image-sensing method for rolling time for exposure compensation, wherein, light source neighbour is placed in
The outside of a first row and/or a last column in multiple row.
10. there is the image-sensing method for rolling time for exposure compensation according to claim 1 or 6, wherein, this is to be sensed
Object includes a finger, and the image includes a fingerprint image, source emissioning light line to the finger, to generate the fingerprint image.
11. a kind of have the imaging sensor for rolling time for exposure compensation, to sense an image, which is characterized in that include：
One sensing element has multiple sensing units, is arranged as multiple rows and multiple row, the sensing element is with roller exposure side
Formula and receive the image；
One light source, to emit light to an object to be sensed to generate the image；And
One time for exposure compensation circuit is coupled with the sensing element, to control a rolling shutter so that the sensing element is to roll
When dynamic formula Exposure mode receives the image, when according to an image brightness signal, adaptability determines the exposure of at least one exposure row
Between.
12. according to claim 11 have the imaging sensor for rolling time for exposure compensation, wherein, which mends
It repays circuit and controls the rolling shutter so that the sensing element is during steady, when receiving the image with roller Exposure mode,
One time for exposure first time of exposure row is a default time for exposure, and completes steady image scanning, and generate be somebody's turn to do according to this
Image brightness signal；And during the preparation during a compensation later, which believes according to the brightness of image
Number, and during the compensation, determine second of time for exposure of at least one exposure row；Wherein, which includes being somebody's turn to do
Second of time for exposure.
13. according to claim 12 have the imaging sensor for rolling time for exposure compensation, wherein, which mends
Circuit is repaid also according to a default target value, and during the compensation, determine second of time for exposure of at least one exposure row.
14. it is according to claim 13 have roll the time for exposure compensation imaging sensor, wherein, during the preparation in
The image brightness signal, be via the result after smoothing techniques according to an original image luminance signal.
15. according to claim 11 have the imaging sensor for rolling time for exposure compensation, wherein, light source neighbour is placed in
The outside of a first row and/or last row in multiple row.
16. a kind of have the imaging sensor for rolling time for exposure compensation, to sense an image, it includes：
One sensing element has multiple sensing units, is arranged as multiple rows and multiple row, the sensing element is with roller exposure side
Formula and receive the image；
One light source, to emit light to an object to be sensed to generate the image；And
One time for exposure compensation circuit is coupled with the sensing element, to control a rolling shutter so that the sensing element is in one
During preparation, when receiving the image with roller Exposure mode, time for exposure first time of at least one exposure row is set as one
Default time for exposure, and complete steady image scanning, and generate an image brightness signal according to this, and during the preparation after
During one compensation, according to the image brightness signal, an at least unit time for exposure is determined, and complete an at least cell picture and sweep
It retouches, and is scanned according to the preparation image scanning and an at least cell picture, generate a combined image information.
17. according to claim 16 have the imaging sensor for rolling time for exposure compensation, wherein, which mends
Circuit is repaid according to the image brightness signal and a luminance threshold, and generates a luminance contour line, and then during the compensation, according to
The luminance contour line determines an at least unit time for exposure, and completes at least cell picture scanning.
18. according to claim 16 have the imaging sensor for rolling time for exposure compensation, wherein, which mends
A single-row image brightness signal of the circuit in the image brightness signal is repaid, determines an at least unit time for exposure, and it is complete
It is scanned into an at least cell picture.
19. according to claim 16 have the imaging sensor for rolling time for exposure compensation, wherein, light source neighbour is placed in
The outside of a first row and/or a last column in multiple row.
20. there is the imaging sensor for rolling time for exposure compensation according to claim 11 or 16, wherein, this is to be sensed
Object includes a finger, and the image includes a fingerprint image, source emissioning light line to the finger, to generate the fingerprint image.
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| US201662440746P | 2016-12-30 | 2016-12-30 | |
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| CN201710660643.2A Active CN108268830B (en) | 2016-12-30 | 2017-08-04 | Optical recognition method |
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| CN201710806082.2A Active CN108269239B (en) | 2016-12-30 | 2017-09-08 | Method for correcting brightness nonuniformity of image and related image brightness correcting device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110876055A (en) * | 2018-08-30 | 2020-03-10 | 菱光科技股份有限公司 | External triggering linear camera detection system and image uniformity processing method thereof |
| US20220027596A1 (en) * | 2020-07-23 | 2022-01-27 | Egis Technology Inc. | Image sensing apparatus and exposure time adjustment method thereof |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110443204A (en) * | 2018-10-11 | 2019-11-12 | 神盾股份有限公司 | Luminous signal intensity control method and electronic device |
| US10755065B2 (en) * | 2018-12-03 | 2020-08-25 | Novatek Microelectronics Corp. | Sensor device and flicker noise mitigating method |
| CN109637505B (en) * | 2018-12-21 | 2020-11-17 | 苏州依唯森电器有限公司 | Four-string violin |
| CN109901754B (en) * | 2019-02-20 | 2021-04-13 | Oppo广东移动通信有限公司 | Data self-calibration method and related device |
| CN110672621B (en) * | 2019-10-10 | 2021-03-05 | 清华大学 | Illumination brightness adjustment-based automobile coating surface defect image quality optimization method |
| TWI739431B (en) * | 2019-12-09 | 2021-09-11 | 大陸商廣州印芯半導體技術有限公司 | Data transmission system and data transmission method thereof |
| CN112272293A (en) * | 2020-10-28 | 2021-01-26 | 业成科技（成都）有限公司 | Image processing method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030025815A1 (en) * | 2001-07-12 | 2003-02-06 | Seiji Hashimoto | Image processing apparatus |
| CN102740005A (en) * | 2011-04-06 | 2012-10-17 | 索尼公司 | Solid-state imaging device and driving method thereof, and electronic apparatus using the same |
| CN102857712A (en) * | 2011-06-09 | 2013-01-02 | 苹果公司 | Image sensor having HDR capture capability |
| CN104270582A (en) * | 2011-03-03 | 2015-01-07 | 原相科技股份有限公司 | Image sensor |
Family Cites Families (44)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7505604B2 (en) * | 2002-05-20 | 2009-03-17 | Simmonds Precision Prodcuts, Inc. | Method for detection and recognition of fog presence within an aircraft compartment using video images |
| KR100973855B1 (en) * | 2002-06-12 | 2010-08-03 | 에스오 델라웨어 코포레이션 (에이/케이/에이 실리콘 옵틱스, 인크.) | System and method for electronic correction of optical anomalies |
| FI116246B (en) * | 2003-06-30 | 2005-10-14 | Nokia Corp | Method and system for adjusting the exposure in digital imaging and the like |
| EP2151191B1 (en) * | 2003-07-04 | 2017-02-22 | Panasonic Intellectual Property Corporation of America | Living eye judging method and device |
| CN1529277A (en) * | 2003-10-16 | 2004-09-15 | 王立丰 | Optical fingerprint collecting instrument for automatic inducing living-finger |
| CN1317671C (en) * | 2003-11-26 | 2007-05-23 | 佳能株式会社 | Signal processor and controlling method |
| JP2006230603A (en) * | 2005-02-23 | 2006-09-07 | Canon Inc | Imaging apparatus, biometric identification system, and image acquisition method |
| CN1664847A (en) * | 2005-03-17 | 2005-09-07 | 上海交通大学 | Embedded system fingerprint identification and matching method |
| JP4247691B2 (en) * | 2006-05-17 | 2009-04-02 | ソニー株式会社 | Registration device, verification device, registration method, verification method, and program |
| EP2047622B1 (en) * | 2006-07-31 | 2019-05-22 | HID Global Corporation | Spatial-spectral fingerprint spoof detection |
| WO2008075136A1 (en) * | 2006-12-20 | 2008-06-26 | Nokia Corporation | Exposure control based on image sensor cost function |
| CN100446036C (en) * | 2006-12-27 | 2008-12-24 | 浙江大学 | Non-linear brightness correcting method based on accumulative histogram |
| US8055070B2 (en) * | 2007-01-05 | 2011-11-08 | Geo Semiconductor Inc. | Color and geometry distortion correction system and method |
| US8031925B2 (en) * | 2007-01-09 | 2011-10-04 | The Board Of Regents Of The University Of Texas System | Method and computer-program product for detecting and quantifying protein spots |
| US7953256B2 (en) * | 2007-09-21 | 2011-05-31 | International Business Machines Corporation | Method and system for detecting fingerprint spoofing |
| CN101399924B (en) * | 2007-09-25 | 2010-05-19 | 展讯通信（上海）有限公司 | Automatic exposure method and device based on brightness histogram |
| CN101494739B (en) * | 2009-02-09 | 2011-09-28 | 胡燕翔 | Method for determining exposure number and distributing exposure time in multi-exposure combination |
| CN101989156B (en) * | 2010-10-08 | 2012-08-15 | 苏州佳世达电通有限公司 | Method for calibrating sensing brightness of image sensor |
| US20120157791A1 (en) * | 2010-12-16 | 2012-06-21 | General Electric Company | Adaptive time domain filtering for improved blood pressure estimation |
| CN102156868B (en) * | 2011-03-31 | 2013-03-13 | 汉王科技股份有限公司 | Image binaryzation method and device |
| CN102222225B (en) * | 2011-06-24 | 2012-12-05 | 洛阳师范学院 | Finger vein image anti-counterfeiting acquiring method |
| EP3222210A1 (en) * | 2011-08-02 | 2017-09-27 | Valencell, Inc. | Systems and methods for variable filter adjustment by heart rate metric feedback |
| CN103083005B (en) * | 2011-11-01 | 2015-05-13 | 北京瓦力网络科技有限公司 | Method for testing heart rate of user |
| TWI476641B (en) * | 2011-11-22 | 2015-03-11 | Pixart Imaging Inc | Remote controller and display system |
| KR101640118B1 (en) * | 2012-03-01 | 2016-07-15 | 가부시키가이샤 니혼 마이크로닉스 | Display unevenness detection method and device for display device |
| US9191635B2 (en) * | 2012-03-19 | 2015-11-17 | Semiconductor Components Industries, Llc | Imaging systems with clear filter pixels |
| US9743057B2 (en) * | 2012-05-31 | 2017-08-22 | Apple Inc. | Systems and methods for lens shading correction |
| US20130332195A1 (en) * | 2012-06-08 | 2013-12-12 | Sony Network Entertainment International Llc | System and methods for epidemiological data collection, management and display |
| TWI489865B (en) * | 2012-11-13 | 2015-06-21 | Pixart Imaging Inc | Exposure adjusting apparatus, image normalizing apparatus and image normalizing method |
| CN103077377B (en) * | 2012-12-31 | 2015-07-29 | 清华大学 | Based on the fingerprint correction method of field of direction distribution |
| BR112015016525B8 (en) * | 2013-01-15 | 2023-02-28 | Avigilon Corp | METHOD FOR AUTOMATIC EXPOSURE TARGET ADJUSTMENT, METHOD TO GENERATE SATURATED PIXEL MASK AND IMAGING DEVICE |
| ITMI20130104A1 (en) * | 2013-01-24 | 2014-07-25 | Empatica Srl | DEVICE, SYSTEM AND METHOD FOR THE DETECTION AND TREATMENT OF HEART SIGNALS |
| US9111125B2 (en) * | 2013-02-08 | 2015-08-18 | Apple Inc. | Fingerprint imaging and quality characterization |
| CN103258156B (en) * | 2013-04-11 | 2016-01-20 | 杭州电子科技大学 | A kind of method generating key based on fingerprint characteristic |
| CN103530848A (en) * | 2013-09-27 | 2014-01-22 | 中国人民解放军空军工程大学 | Double exposure implementation method for inhomogeneous illumination image |
| CN104331683B (en) * | 2014-10-17 | 2017-07-07 | 南京工程学院 | A kind of facial expression recognizing method with noise robustness |
| TWI512270B (en) * | 2015-01-13 | 2015-12-11 | Pixart Imaging Inc | Optical distance measurement system with dynamicexposure time |
| US9880634B2 (en) * | 2015-03-20 | 2018-01-30 | Optim Corporation | Gesture input apparatus, gesture input method, and program for wearable terminal |
| TWI537875B (en) * | 2015-04-08 | 2016-06-11 | 大同大學 | Image fusion method and image processing apparatus |
| CN105635359B (en) * | 2015-12-31 | 2018-10-26 | 宇龙计算机通信科技(深圳)有限公司 | Method for measuring heart rate and device, terminal |
| CN105877730B (en) * | 2016-03-21 | 2019-07-26 | 联想(北京)有限公司 | A kind of heart rate detection method, device and electronic equipment |
| CN105847708B (en) * | 2016-05-26 | 2018-09-21 | 武汉大学 | Line-scan digital camera automatic exposure method of adjustment based on image histogram analysis and system |
| CN106060658B (en) * | 2016-05-27 | 2019-06-14 | 青岛海信电器股份有限公司 | A kind of image processing method and device |
| CN106127134B (en) * | 2016-06-20 | 2019-07-26 | 联想(北京)有限公司 | Optical devices, electronic equipment and its control method |
-
2017
- 2017-07-20 TW TW106124209A patent/TW201822709A/en unknown
- 2017-07-31 TW TW106125696A patent/TW201826164A/en unknown
- 2017-07-31 TW TW106125735A patent/TWI629645B/en active
- 2017-08-04 CN CN201710661554.XA patent/CN108261195B/en active Active
- 2017-08-04 CN CN201710659669.5A patent/CN108268829B/en active Active
- 2017-08-04 CN CN201710660643.2A patent/CN108268830B/en active Active
- 2017-08-30 TW TW106129510A patent/TW201841493A/en unknown
- 2017-08-30 TW TW106129519A patent/TWI629643B/en active
- 2017-08-30 TW TW106129438A patent/TWI629904B/en active
- 2017-09-08 CN CN201710806124.2A patent/CN108270976A/en active Pending
- 2017-09-08 CN CN201710804079.7A patent/CN108270975B/en active Active
- 2017-09-08 CN CN201710806082.2A patent/CN108269239B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030025815A1 (en) * | 2001-07-12 | 2003-02-06 | Seiji Hashimoto | Image processing apparatus |
| CN104270582A (en) * | 2011-03-03 | 2015-01-07 | 原相科技股份有限公司 | Image sensor |
| CN102740005A (en) * | 2011-04-06 | 2012-10-17 | 索尼公司 | Solid-state imaging device and driving method thereof, and electronic apparatus using the same |
| CN102857712A (en) * | 2011-06-09 | 2013-01-02 | 苹果公司 | Image sensor having HDR capture capability |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110876055A (en) * | 2018-08-30 | 2020-03-10 | 菱光科技股份有限公司 | External triggering linear camera detection system and image uniformity processing method thereof |
| CN110876055B (en) * | 2018-08-30 | 2021-04-09 | 菱光科技股份有限公司 | External triggering linear camera detection system and image uniformity processing method thereof |
| US20220027596A1 (en) * | 2020-07-23 | 2022-01-27 | Egis Technology Inc. | Image sensing apparatus and exposure time adjustment method thereof |
Also Published As
| Publication number | Publication date |
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| CN108270975B (en) | 2020-09-15 |
| TW201824857A (en) | 2018-07-01 |
| TW201841493A (en) | 2018-11-16 |
| CN108268829B (en) | 2021-03-30 |
| TW201826164A (en) | 2018-07-16 |
| TWI629904B (en) | 2018-07-11 |
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| CN108269239B (en) | 2021-03-30 |
| CN108268829A (en) | 2018-07-10 |
| CN108261195B (en) | 2020-12-11 |
| CN108269239A (en) | 2018-07-10 |
| CN108268830B (en) | 2021-03-30 |
| TWI629645B (en) | 2018-07-11 |
| TW201824081A (en) | 2018-07-01 |
| TWI629643B (en) | 2018-07-11 |
| CN108261195A (en) | 2018-07-10 |
| CN108270975A (en) | 2018-07-10 |
| CN108268830A (en) | 2018-07-10 |
| TW201822709A (en) | 2018-07-01 |
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Application publication date: 20180710 |
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