CN108694365A - A kind of image acquiring method and terminal - Google Patents
A kind of image acquiring method and terminal Download PDFInfo
- Publication number
- CN108694365A CN108694365A CN201710237511.9A CN201710237511A CN108694365A CN 108694365 A CN108694365 A CN 108694365A CN 201710237511 A CN201710237511 A CN 201710237511A CN 108694365 A CN108694365 A CN 108694365A
- Authority
- CN
- China
- Prior art keywords
- ultrasonic echo
- echo signal
- ultrasonic
- target
- signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- G06V40/13—Sensors therefor
- G06V40/1306—Sensors therefor non-optical, e.g. ultrasonic or capacitive sensing
Abstract
The embodiment of the invention discloses a kind of acquisition methods of image, including:The ultrasonic echo signal array that the ultrasonic signal emitted to user's dermatoglyph is reflected back is received by array of ultrasonic sensors;The target ultrasonic echo signal being reflected back by the wrinkle ridge in user's dermatoglyph and the dermatoglyph between line paddy is determined in the ultrasonic echo signal array;Enhancing processing is carried out to the target ultrasonic echo signal, ultrasonic echo signal after being handled;User's skin texture images are obtained according to other ultrasonic echo signals in ultrasonic echo signal after the processing and the ultrasonic echo signal array in addition to the target ultrasonic echo signal.The embodiment of the invention also discloses a kind of terminals.Using the present invention, the clarity that terminal obtains image is improved.
Description
Technical field
The present invention relates to electronic technology field more particularly to a kind of image acquiring method and terminals.
Background technology
With the development of society, people are to the accuracy of authentication, safety and practicability, more stringent requirements are proposed.
It is well known that everyone dermatoglyph (including fingerprint) is different on pattern, breakpoint and crosspoint, that is, only
One, and it is constant throughout one's life, therefore, by this uniqueness and stability, create fingerprint identification technology.
Currently, terminal is in the fingerprint image for user need to acquire user when authentication with fingerprint identification technology.
And terminal can be acquired when acquiring the fingerprint image of user by ultrasonic sensor.But terminal is passing through ultrasound
When the ultrasonic echo signal that the fingerprint of wave sensor acquisition user is transmitted back to, due to being deposited between the fingerprint wrinkle ridge and line paddy of user
In air, this may cause the ultrasonic echo signal energy reflected at this extremely low, so that terminal is according to ultrasonic echo
The fingerprint image that signal acquisition arrives is smudgy clear, and the fingerprint of user is caused possibly can not to be accurately identified by terminal.
Invention content
Technical problem to be solved of the embodiment of the present invention is, provides a kind of acquisition methods and terminal of image.It can carry
High terminal obtains the clarity of image.
In order to solve the above-mentioned technical problem, an embodiment of the present invention provides a kind of acquisition methods of image, including:
The ultrasound that the ultrasonic signal emitted to user's dermatoglyph is reflected back is received by array of ultrasonic sensors
Wave echo-signal array;
It is determined by the wrinkle ridge in user's dermatoglyph and between line paddy in the ultrasonic echo signal array
The target ultrasonic echo signal that dermatoglyph is reflected back;
Enhancing processing is carried out to the target ultrasonic echo signal, ultrasonic echo signal after being handled;
It is ultrasonic according to the target is removed in ultrasonic echo signal after the processing and the ultrasonic echo signal array
Other ultrasonic echo signals except wave echo-signal obtain user's skin texture images.
Correspondingly, the embodiment of the present invention additionally provides a kind of terminal, including:
Receiving unit, for receiving the ultrasonic signal emitted to user's dermatoglyph by array of ultrasonic sensors
The ultrasonic echo signal array being reflected back;
Determination unit, for being determined by the wrinkle ridge in user's dermatoglyph in the ultrasonic echo signal array
The target ultrasonic echo signal that dermatoglyph between line paddy is reflected back;
Processing unit, for carrying out enhancing processing to the target ultrasonic echo signal, ultrasonic wave returns after being handled
Wave signal;
Acquiring unit, for being removed according in ultrasonic echo signal after the processing and the ultrasonic echo signal array
Other ultrasonic echo signals except the target ultrasonic echo signal obtain user's skin texture images.
In embodiments of the present invention, terminal is received by array of ultrasonic sensors to the super of user's dermatoglyph transmitting
The ultrasonic echo signal array that acoustic signals are reflected back determines in the ultrasonic echo signal array by user's skin
The target ultrasonic echo signal that dermatoglyph between wrinkle ridge in skin texture and line paddy is reflected back, to target ultrasound
Wave echo-signal carries out enhancing processing, ultrasonic echo signal after being handled, according to ultrasonic echo signal after the processing
It is obtained with other ultrasonic echo signals in the ultrasonic echo signal array in addition to the target ultrasonic echo signal
Family skin texture images are taken, to which the clarity that terminal obtains user's skin texture images can be improved.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of schematic flow diagram of the acquisition methods of image provided in an embodiment of the present invention;
Fig. 2 is a kind of ultrasonic probe schematic diagram provided in an embodiment of the present invention;
Fig. 3 is a kind of array of ultrasonic sensors installation position schematic diagram provided in an embodiment of the present invention;
Fig. 4 is a kind of array of ultrasonic sensors acquisition fingerprint schematic diagram provided in an embodiment of the present invention;
Fig. 5 is a kind of terminal structure schematic diagram provided in an embodiment of the present invention;
Fig. 6 is another terminal structure schematic diagram provided in an embodiment of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment shall fall within the protection scope of the present invention.
For convenience, using terminal as the executive agent in the embodiment of the present invention, described terminal may include:Hand
Machine, tablet computer, palm PC or mobile internet device (Mobile Internet Device, MID) etc., above-mentioned terminal
Only it is citing, and it is non exhaustive, including but not limited to above-mentioned terminal.
It is a kind of acquisition methods schematic flow diagram of image provided in an embodiment of the present invention referring to Fig. 1,1 institute as shown in the figure
Show, a kind of acquisition methods of image may include following steps:
S100 receives what the ultrasonic signal emitted to user's dermatoglyph was reflected back by array of ultrasonic sensors
Ultrasonic echo signal array.
In embodiments of the present invention, terminal can be carried out transmitting ultrasonic wave by ultrasonic probe and receive ultrasonic echo,
Wherein, ultrasonic probe can be an array of ultrasonic sensors, and array of ultrasonic sensors is by multiple ultrasonic sensor groups
At the array of ultrasonic sensors being such as made of the sensor of N rows M row.In a particular application, ultrasonic probe can specifically join
Ultrasonic probe as shown in Figure 2, as seen from the figure, the ultrasonic probe are an array of ultrasonic sensors.Of the invention real
It applies in example, ultrasonic probe can utilize the piezoelectric effect of ultrasonic sensor to realize electric energy harmony transformation of energy, and therefore, terminal can
Transmitting ultrasonic signal is carried out by ultrasonic probe, also can carry out received ultrasonic signal by ultrasonic probe.
In embodiments of the present invention, user's dermatoglyph can be specifically user fingerprints, the skins such as user's lines of the hand, user's toe line
Skin texture is specifically described by taking user fingerprints as an example in the examples below.Therefore, when terminal detects acquisition fingerprint image
When as instruction, finger can be positioned in front of array of ultrasonic sensors by user, and terminal can control array of ultrasonic sensors hair
Ultrasonic signal is penetrated, and after transmitting ultrasonic signal, is passed through by array of ultrasonic sensors received ultrasonic signal
The ultrasonic echo signal array that user fingerprints are reflected back, wherein each ultrasonic sensor in array of ultrasonic sensors
The ultrasonic echo signal composition ultrasonic echo signal array received.In a particular application, array of ultrasonic sensors can
It is set in the button 1 in terminal shown in Fig. 3, when finger is placed on button 1 by terminal, terminal can detect acquisition and refer to
Print image instructs, and then emits ultrasonic signal by the array of ultrasonic sensors in button 1 and pass through ultrasonic sensor
Array received ultrasonic echo signal array.
S101, determined in the ultrasonic echo signal array by wrinkle ridge and the line paddy in user's dermatoglyph it
Between the target ultrasonic echo signal that is reflected back of dermatoglyph.
In embodiments of the present invention, when terminal receives the ultrasonic echo signal array of user fingerprints reflection meeting, eventually
End can traverse each ultrasonic echo signal in ultrasonic echo signal array, the determining wrinkle ridge by user fingerprints and line paddy
Between at least one target ultrasonic echo signal for being reflected back of dermatoglyph.
In embodiments of the present invention, terminal determines in ultrasonic echo signal array by the wrinkle ridge and line in user fingerprints
The target ultrasonic echo signal that dermatoglyph between paddy is reflected back can be specifically:Terminal judges that ultrasonic echo is believed one by one
Whether the ultrasonic wave clawback signal in number array is located between the peaks and troughs in ultrasonic echo signal array, super when determining
When sound echo signal is located at the peaks and troughs in ultrasonic echo signal array, terminal determines that ultrasonic echo signal is mesh
Mark ultrasonic echo signal.
In embodiments of the present invention, terminal determines whether the ultrasonic wave clawback signal in ultrasonic echo signal array is located at
Can be specifically between peaks and troughs in ultrasonic echo signal array:Terminal is first in ultrasonic echo signal array
Determine the corresponding ultrasonic signal of wave crest and the corresponding ultrasonic signal of trough.Wherein, terminal can detect ultrasonic signal one by one
Intensity size whether be respectively less than or the intensity size of ultrasonic signal equal to surrounding, when determining that the intensity of ultrasonic signal is big
The intensity size of the small ultrasonic signal for being respectively less than surrounding, terminal can determine that intensity size is respectively less than the ultrasonic signal of surrounding
The ultrasonic signal of intensity size is the corresponding ultrasonic signal of trough;The intensity that terminal can also detect ultrasonic signal one by one is big
It is small whether to be all higher than or the intensity size of ultrasonic signal equal to surrounding, when determining that the intensity size of ultrasonic signal is all higher than
Or the intensity size of the ultrasonic signal equal to surrounding, terminal can determine that intensity size is all higher than or believes equal to the ultrasonic wave of surrounding
Number intensity size ultrasonic wave be the corresponding ultrasonic signal of wave crest.
Secondly, when terminal determines that the corresponding ultrasonic signal of wave crest in ultrasonic echo signal array and trough are corresponding
After ultrasonic signal, terminal can detect whether the ultrasonic echo signal in ultrasonic echo signal array is located at ultrasonic wave one by one
Between the position of the position ultrasonic signal corresponding with trough of the corresponding ultrasonic signal of wave crest in echo-signal array.Tool
Body, terminal can determine whether to judge whether the intensity size of ultrasonic echo signal is less than the corresponding ultrasonic echo letter of adjacent peaks
Number intensity size and big more than the intensity of the corresponding ultrasonic echo signal of adjacent trough, when determining ultrasonic echo signal
Intensity size is less than the intensity size of the corresponding ultrasonic echo signal of adjacent peaks and is more than the corresponding ultrasonic wave of adjacent trough
The intensity size of echo-signal, terminal can determine that the wave crest that ultrasonic echo signal is located in ultrasonic echo signal array corresponds to
Ultrasonic echo signal ultrasonic echo signal corresponding with trough between.
Specifically, reference can be made to array of ultrasonic sensors shown in Fig. 4 acquires fingerprint schematic diagram, wherein the fingerprint in Fig. 4
Cross section is the partial cross sectional in user fingerprints, and a line ultrasonic sensor in Fig. 4 can be array of ultrasonic sensors
In arbitrary a line ultrasonic sensor in position multiple ultrasonic wave sensors adjacent each other.From fig. 4, it can be seen that supersonic sensing
1 collected ultrasonic echo signal of device is the ultrasonic echo signal that the wrinkle ridge of user fingerprints is reflected back, due to wrinkle ridge and biography
The air gap between sensor is small, and impedance is small, therefore the intensity size of 1 collected ultrasonic echo signal of sensor is with respect to phase
The intensity size highest of the adjacent collected ultrasonic echo signal of ultrasonic sensor, therefore terminal can determine supersonic sensing
1 collected ultrasonic echo signal of device is the corresponding ultrasonic echo signal of wave crest.3 collected ultrasound of ultrasonic sensor
Wave echo-signal is the ultrasonic echo signal that the line paddy of user fingerprints is reflected back, due between the air between line paddy and sensor
Gap is big, and impedance is big, therefore the relatively adjacent ultrasonic wave of intensity size of 3 collected ultrasonic echo signal of ultrasonic sensor
The intensity size of the collected ultrasonic echo signal of sensor is minimum, therefore terminal can determine that ultrasonic sensor 3 collects
Ultrasonic echo signal be the corresponding ultrasonic echo signal of trough.2 collected ultrasonic echo of ultrasonic sensor is believed
Number it is the ultrasonic echo signal that the texture between the wrinkle ridge of user fingerprints and line paddy is reflected back, due to texture at this and sensor
Between the air gap be not maximum, nor minimum, therefore 2 collected ultrasonic echo signal of ultrasonic sensor
Intensity size is less than the intensity size of the corresponding ultrasonic echo signal of adjacent peaks and is more than the corresponding ultrasonic wave of adjacent trough
The intensity size of echo-signal, therefore terminal can determine that 2 collected ultrasonic echo signal of ultrasonic sensor is that user refers to
The target ultrasonic echo signal of texture reflection meeting between the wrinkle ridge and line paddy of line.
Terminal obtains the intensity size of each ultrasonic echo signal in ultrasonic echo signal array, judges ultrasonic wave
Whether the intensity size of echo-signal is less than preset first threshold and is more than preset second threshold, when determining ultrasonic echo
When the intensity size of signal is less than preset first threshold and is more than preset second threshold, determine that ultrasonic echo signal is located at
Between peaks and troughs in ultrasonic echo signal array.Wherein, first threshold is the adjacent peaks of ultrasonic echo signal
The intensity size of corresponding ultrasonic echo signal, second threshold are the corresponding ultrasonic wave of adjacent trough of ultrasonic echo signal
The intensity size of echo-signal.Terminal determines that the corresponding ultrasonic echo signal of the adjacent peaks of ultrasonic echo signal can be
Terminal reads the adjacent ultrasonic wave echo-signal of ultrasonic echo signal in ultrasonic echo signal array, obtains adjacent ultrasonic
The intensity size of wave echo-signal, and judge whether the intensity size of adjacent ultrasonic wave echo-signal is all higher than or equal to surrounding
The intensity size of ultrasonic echo signal, when determining that the intensity size of adjacent ultrasonic wave echo-signal is all higher than or equal to surrounding
When the intensity size of ultrasonic echo signal, it is determined that adjacent ultrasonic wave echo-signal is the corresponding ultrasonic echo of adjacent peaks
Signal;When determine the intensity size of adjacent ultrasonic wave echo-signal without both greater than or equal to surrounding ultrasonic echo signal
When intensity size, terminal can further obtain the adjacent super of the adjacent ultrasonic wave echo-signal in ultrasonic echo signal array
Sound echo signal, until the intensity size of signal that terminal is got be all higher than or equal to surrounding ultrasonic echo signal
Intensity size, and determine that the signal is the corresponding ultrasonic echo signal of jingle bell wave crest.
S102 carries out enhancing processing, ultrasonic echo signal after being handled to the target ultrasonic echo signal.
In embodiments of the present invention, terminal-pair target ultrasonic echo signal, which carries out enhancing processing, can be specifically:Terminal
Obtain the intensity size and target ultrasonic wave of the corresponding ultrasonic echo signal of adjacent peaks of target ultrasonic echo signal
The intensity size of the corresponding ultrasonic echo signal of adjacent peaks of wave echo-signal, to accessed target ultrasonic echo
The adjacent peaks of the intensity size and target ultrasonic wave wave echo-signal of the corresponding ultrasonic echo signal of adjacent peaks of signal
The intensity size of corresponding ultrasonic echo signal is summed and is averaged, and the intensity size after being averaged is as ultrasound after processing
The intensity size of wave echo-signal, to realize the purpose for carrying out enhancing processing to target ultrasonic signal.Specifically, referring to figure
4, when target ultrasonic echo signal is 2 collected ultrasonic echo signal of ultrasonic sensor, terminal can determine target
The corresponding ultrasonic echo signal of ultrasonic echo signal adjacent peaks is believed for 1 collected ultrasonic echo of ultrasonic sensor
Number and the corresponding ultrasonic echo signal of the adjacent trough of target ultrasonic echo signal be ultrasonic sensor 3 it is collected
Ultrasonic echo signal.To which the intensity size that terminal can obtain 1 collected ultrasonic echo signal of ultrasonic sensor is a
And the intensity size of 3 collected ultrasonic echo signal of ultrasonic sensor is b, therefore, terminal can obtain target ultrasound
The intensity size of wave echo-signal is c=(a+b)/2.
Further, in embodiments of the present invention, weights can be also arranged in terminal, according to the weights of setting to target ultrasonic wave
The intensity size of the corresponding ultrasonic echo signal of adjacent peaks of echo-signal, the adjacent trough of target ultrasonic echo signal
After the intensity size of corresponding ultrasonic echo signal and the intensity size of target ultrasonic echo signal carry out calculation processing
The intensity size of ultrasonic echo signal, to realize the purpose for carrying out enhancing processing to target ultrasonic echo signal.Specifically
, weights can be arranged as 0.5,0.7 and 0.8 equal numerical value in terminal, be not limited herein.Referring to Fig. 4, when target ultrasonic echo
When signal is 2 collected ultrasonic echo signal of ultrasonic sensor, terminal can determine the phase of target ultrasonic echo signal
The corresponding ultrasonic echo signal in adjacent wave peak is 1 collected ultrasonic echo signal of ultrasonic sensor and target ultrasound
The corresponding ultrasonic echo signal of the adjacent trough of wave echo-signal is 3 collected ultrasonic echo signal of ultrasonic sensor.
To which the intensity size that terminal can obtain target ultrasonic echo signal is d, 1 collected ultrasonic echo of ultrasonic sensor
The intensity size of signal is a, and the intensity size of 3 collected ultrasonic echo signal of ultrasonic sensor is b, when terminal is arranged
When weights are 0.5, intensity size c=(a+b)/2*0.5+d* of ultrasonic echo signal after terminal can be handled according to formula
0.5.Further, terminal can also be carried out according to other formula obtain ultrasonic echo signal intensity size, herein without
Limitation.
S103, according in ultrasonic echo signal after the processing and the ultrasonic echo signal array remove the target
Other ultrasonic echo signals except ultrasonic echo signal obtain user's skin texture images.
In embodiments of the present invention, terminal can obtain the intensity size and ultrasonic wave time of ultrasonic echo signal after processing
The intensity size of other ultrasonic echo signals in wave signal array in addition to target ultrasonic echo signal, and according to preset
Intensity size and gray value direct proportion correspondence, obtain the corresponding pixel value of each ultrasonic echo signal, and according to
Position and corresponding pixel value of each ultrasonic echo signal in ultrasonic echo signal array generate user's skin line
Manage image, wherein pixel value can be gray value or other pixel values, be not limited herein.Specifically, user's dermatoglyph
Image can be user fingerprint image.When terminal gets user fingerprint image, terminal can be according to the user fingerprints figure got
Processing as carrying out next step such as exports user fingerprint image, or carries out the operations such as fingerprint recognition according to user fingerprint image.
In embodiments of the present invention, terminal is received by array of ultrasonic sensors to the super of user's dermatoglyph transmitting
The ultrasonic echo signal array that acoustic signals are reflected back determines in the ultrasonic echo signal array by user's skin
The target ultrasonic echo signal that dermatoglyph between wrinkle ridge in skin texture and line paddy is reflected back, to target ultrasound
Wave echo-signal carries out enhancing processing, ultrasonic echo signal after being handled, according to ultrasonic echo signal after the processing
It is obtained with other ultrasonic echo signals in the ultrasonic echo signal array in addition to the target ultrasonic echo signal
Family skin texture images are taken, to which the clarity that terminal obtains user's skin texture images can be improved.
Fig. 5 is referred to, for a kind of first embodiment flow diagram of terminal of the present invention.As shown in figure 5, the present embodiment institute
A kind of terminal stated includes:
Receiving unit 100, for receiving the ultrasonic wave emitted to user's dermatoglyph by array of ultrasonic sensors
The ultrasonic echo signal array that signal reflex is returned.
Determination unit 200, for being determined by user's dermatoglyph in the ultrasonic echo signal array
The target ultrasonic echo signal that dermatoglyph between wrinkle ridge and line paddy is reflected back.
Processing unit 300, for carrying out enhancing processing to the target ultrasonic echo signal, ultrasonic wave after being handled
Echo-signal.
Acquiring unit 400, for according to ultrasonic echo signal after the processing and the ultrasonic echo signal array
In other ultrasonic echo signals in addition to the target ultrasonic echo signal obtain user's skin texture images.
It is understood that the function of each function module of the device of the present embodiment can be according in above method embodiment
Method implements, and specific implementation process is referred to the associated description of above method embodiment, is no longer repeated herein.
In embodiments of the present invention, terminal is received by array of ultrasonic sensors to the super of user's dermatoglyph transmitting
The ultrasonic echo signal array that acoustic signals are reflected back determines in the ultrasonic echo signal array by user's skin
The target ultrasonic echo signal that dermatoglyph between wrinkle ridge in skin texture and line paddy is reflected back, to target ultrasound
Wave echo-signal carries out enhancing processing, ultrasonic echo signal after being handled, according to ultrasonic echo signal after the processing
It is obtained with other ultrasonic echo signals in the ultrasonic echo signal array in addition to the target ultrasonic echo signal
Family skin texture images are taken, to which the clarity that terminal obtains user's skin texture images can be improved.
It is a kind of terminal schematic block diagram that another embodiment of the present invention provides referring to Fig. 6.The present embodiment as shown in FIG. 6
In terminal may include:One or more processors 601;One or more input equipments 602, one or more output equipments
603 and memory 604.Above-mentioned processor 601, input equipment 602, output equipment 603 and memory 604 are connected by bus 605
It connects.For storing instruction, processor 601 is used to execute the instruction of the storage of memory 604 to memory 604.Wherein, processor 601
For:
The ultrasound that the ultrasonic signal emitted to user's dermatoglyph is reflected back is received by array of ultrasonic sensors
Wave echo-signal array;
It is determined by the wrinkle ridge in user's dermatoglyph and between line paddy in the ultrasonic echo signal array
The target ultrasonic echo signal that dermatoglyph is reflected back;
Enhancing processing is carried out to the target ultrasonic echo signal, ultrasonic echo signal after being handled;
It is ultrasonic according to the target is removed in ultrasonic echo signal after the processing and the ultrasonic echo signal array
Other ultrasonic echo signals except wave echo-signal obtain user's skin texture images.
Wherein, the processor 601 determines in the ultrasonic echo signal array by user's dermatoglyph
Wrinkle ridge and line paddy between the target ultrasonic echo signal that is reflected back of dermatoglyph include:
Judge whether the ultrasonic echo signal in the ultrasonic echo signal array is located at the ultrasonic wave and returns one by one
Between the corresponding ultrasonic echo signal of wave crest ultrasonic echo signal corresponding with trough in wave signal array;
When the corresponding ultrasonic wave time of wave crest for determining that ultrasonic echo signal is located in the ultrasonic echo signal array
When between wave signal ultrasonic echo signal corresponding with trough, determine that the ultrasonic echo signal is target ultrasonic echo
Signal.
Wherein, the processor 601 judges that the ultrasonic echo signal in the ultrasonic echo signal array is one by one
The no corresponding ultrasonic echo signal of wave crest in ultrasonic echo signal array ultrasonic wave corresponding with trough returns
Include between wave signal:
Obtain the intensity size of the ultrasonic echo signal;
Judge whether the intensity size of the ultrasonic echo signal is less than the corresponding ultrasonic echo signal of adjacent peaks
Intensity size and more than the corresponding ultrasonic echo signal of adjacent trough intensity size;
When determining that the intensity size of the ultrasonic echo signal is less than adjacent peaks corresponding ultrasonic echo signals
Intensity size and the intensity size for being more than the corresponding ultrasonic echo signal of adjacent trough, determine the ultrasonic echo signal position
Between peaks and troughs in the ultrasonic echo signal array.
Wherein, the processor 601 carries out enhancing processing to the target ultrasonic echo signal, ultrasonic after being handled
Wave echo-signal includes:
In conjunction with the target ultrasonic echo signal the corresponding ultrasonic echo signal of adjacent peaks intensity size and
The intensity size of the corresponding ultrasonic echo signal of adjacent trough of the target ultrasonic echo signal is to target ultrasound
Wave echo-signal carries out enhancing processing, ultrasonic echo signal after being handled.
Wherein, the processor 601 is returned in conjunction with the corresponding ultrasonic wave of adjacent peaks of the target ultrasonic echo signal
The intensity of the corresponding ultrasonic echo signal of adjacent trough of the intensity size of wave signal and the target ultrasonic echo signal
Size carries out enhancing processing to the target ultrasonic echo signal, and ultrasonic echo signal includes after being handled:
Based on preset weights, in conjunction with the corresponding ultrasonic echo letter of adjacent peaks of the target ultrasonic echo signal
Number intensity size and the target ultrasonic echo signal the corresponding ultrasonic echo signal of adjacent trough intensity size
Enhancing processing is carried out to the target ultrasonic echo signal with the intensity size of the target ultrasonic echo signal, obtains institute
State ultrasonic echo signal after handling.
It is understood that the function of each function module of the device of the present embodiment can be according in above method embodiment
Method implements, and specific implementation process is referred to the associated description of above method embodiment, is no longer repeated herein.
In embodiments of the present invention, terminal is received by array of ultrasonic sensors to the super of user's dermatoglyph transmitting
The ultrasonic echo signal array that acoustic signals are reflected back determines in the ultrasonic echo signal array by user's skin
The target ultrasonic echo signal that dermatoglyph between wrinkle ridge in skin texture and line paddy is reflected back, to target ultrasound
Wave echo-signal carries out enhancing processing, ultrasonic echo signal after being handled, according to ultrasonic echo signal after the processing
It is obtained with other ultrasonic echo signals in the ultrasonic echo signal array in addition to the target ultrasonic echo signal
Family skin texture images are taken, to which the clarity that terminal obtains user's skin texture images can be improved.
One of ordinary skill in the art will appreciate that realizing all or part of flow in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the program can be stored in a computer read/write memory medium
In, the program is when being executed, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, the storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, RAM) etc..
The above disclosure is only the preferred embodiments of the present invention, cannot limit the right model of the present invention with this certainly
It encloses, therefore equivalent changes made in accordance with the claims of the present invention, is still within the scope of the present invention.
Claims (10)
1. a kind of acquisition methods of image, which is characterized in that the method includes:
The ultrasonic wave that the ultrasonic signal emitted to user's dermatoglyph is reflected back is received by array of ultrasonic sensors to return
Wave signal array;
It is determined by the wrinkle ridge in user's dermatoglyph and the skin between line paddy in the ultrasonic echo signal array
The target ultrasonic echo signal that texture is reflected back;
Enhancing processing is carried out to the target ultrasonic echo signal, ultrasonic echo signal after being handled;
It is returned according to the target ultrasonic wave is removed in ultrasonic echo signal after the processing and the ultrasonic echo signal array
Other ultrasonic echo signals except wave signal obtain user's skin texture images.
2. the method as described in claim 1, which is characterized in that described to be determined by institute in the ultrasonic echo signal array
Stating the target ultrasonic echo signal that the dermatoglyph between wrinkle ridge and the line paddy in user's dermatoglyph is reflected back includes:
Judge whether the ultrasonic echo signal in the ultrasonic echo signal array is located at the ultrasonic echo and believes one by one
Between the corresponding ultrasonic echo signal of wave crest ultrasonic echo signal corresponding with trough in number array;
When the corresponding ultrasonic echo letter of wave crest for determining that ultrasonic echo signal is located in the ultrasonic echo signal array
When between number ultrasonic echo signal corresponding with trough, determine that the ultrasonic echo signal is believed for target ultrasonic echo
Number.
3. method as claimed in claim 2, which is characterized in that described to judge one by one in the ultrasonic echo signal array
Whether ultrasonic echo signal is located at the corresponding ultrasonic echo signal of wave crest and wave in the ultrasonic echo signal array
Include between the corresponding ultrasonic echo signal of paddy:
Obtain the intensity size of the ultrasonic echo signal;
Judge whether the intensity size of the ultrasonic echo signal is less than the strong of the corresponding ultrasonic echo signal of adjacent peaks
Spend size and the intensity size more than the corresponding ultrasonic echo signal of adjacent trough;
When intensity of the intensity size less than the corresponding ultrasonic echo signal of adjacent peaks for determining the ultrasonic echo signal
Size and the intensity size for being more than the corresponding ultrasonic echo signal of adjacent trough, determine that the ultrasonic echo signal is located at institute
It states between the peaks and troughs in ultrasonic echo signal array.
4. method as claimed in claim 3, which is characterized in that described to be carried out at enhancing to the target ultrasonic echo signal
Reason, ultrasonic echo signal includes after being handled:
In conjunction with the intensity size of the corresponding ultrasonic echo signal of adjacent peaks of the target ultrasonic echo signal and described
The intensity size of the corresponding ultrasonic echo signal of adjacent trough of target ultrasonic echo signal returns the target ultrasonic wave
Wave signal carries out enhancing processing, ultrasonic echo signal after being handled.
5. method as claimed in claim 4, which is characterized in that the adjacent wave of target ultrasonic echo signal described in the combination
The corresponding ultrasound of adjacent trough of the intensity size of the corresponding ultrasonic echo signal in peak and the target ultrasonic echo signal
The intensity size of wave echo-signal carries out enhancing processing to the target ultrasonic echo signal, ultrasonic echo after being handled
Signal includes:
Based on preset weights, in conjunction with the corresponding ultrasonic echo signal of adjacent peaks of the target ultrasonic echo signal
The intensity size of the corresponding ultrasonic echo signal of adjacent trough of intensity size and the target ultrasonic echo signal and institute
The intensity size for stating target ultrasonic echo signal carries out enhancing processing to the target ultrasonic echo signal, obtains the place
Ultrasonic echo signal after reason.
6. a kind of terminal, which is characterized in that the terminal includes:
Receiving unit is reflected for receiving the ultrasonic signal emitted to user's dermatoglyph by array of ultrasonic sensors
The ultrasonic echo signal array returned;
Determination unit, for being determined by the wrinkle ridge and line in user's dermatoglyph in the ultrasonic echo signal array
The target ultrasonic echo signal that dermatoglyph between paddy is reflected back;
Processing unit, for carrying out enhancing processing to the target ultrasonic echo signal, ultrasonic echo is believed after being handled
Number;
Acquiring unit, for according to being removed in ultrasonic echo signal after the processing and the ultrasonic echo signal array
Other ultrasonic echo signals except target ultrasonic echo signal obtain user's skin texture images.
7. terminal as claimed in claim 6, which is characterized in that the determination unit includes:
First judgment sub-unit, for judge one by one the ultrasonic echo signal in the ultrasonic echo signal array whether position
The corresponding ultrasonic echo signal of wave crest ultrasonic echo letter corresponding with trough in the ultrasonic echo signal array
Between number;
First determination subelement determines that ultrasonic echo signal is located at ultrasonic echo letter for working as the judgment sub-unit
When between the corresponding ultrasonic echo signal of the wave crest ultrasonic echo signal corresponding with trough in number array, determine described super
Sound echo signal is target ultrasonic echo signal.
8. terminal as claimed in claim 7, which is characterized in that first judgment sub-unit includes:
Obtain subelement, the intensity size for obtaining the ultrasonic echo signal;
Second judgment sub-unit, for judging it is corresponding whether the intensity size of the ultrasonic echo signal is less than adjacent peaks
The intensity size of ultrasonic echo signal and the intensity size for being more than the corresponding ultrasonic echo signal of adjacent trough;
Second determination subelement, for determining that the intensity of the ultrasonic echo signal is slight greatly when second judgment sub-unit
In the corresponding ultrasonic echo signal of adjacent peaks intensity size and more than the corresponding ultrasonic echo signal of adjacent trough
Intensity size determines that the ultrasonic echo signal is located between the peaks and troughs in the ultrasonic echo signal array.
9. terminal as claimed in claim 8, which is characterized in that the processing unit includes:
First processing subelement, for the corresponding ultrasonic echo letter of adjacent peaks in conjunction with the target ultrasonic echo signal
Number intensity size and the target ultrasonic echo signal the corresponding ultrasonic echo signal of adjacent trough intensity size
Enhancing processing is carried out to the target ultrasonic echo signal, ultrasonic echo signal after being handled.
10. terminal as claimed in claim 9, which is characterized in that the first processing subelement is specifically additionally operable to:
Based on preset weights, in conjunction with the corresponding ultrasonic echo signal of adjacent peaks of the target ultrasonic echo signal
The intensity size of the corresponding ultrasonic echo signal of adjacent trough of intensity size and the target ultrasonic echo signal and institute
The intensity size for stating target ultrasonic echo signal carries out enhancing processing to the target ultrasonic echo signal, obtains the place
Ultrasonic echo signal after reason.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710237511.9A CN108694365B (en) | 2017-04-12 | 2017-04-12 | Image acquisition method and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710237511.9A CN108694365B (en) | 2017-04-12 | 2017-04-12 | Image acquisition method and terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108694365A true CN108694365A (en) | 2018-10-23 |
| CN108694365B CN108694365B (en) | 2022-11-15 |
Family
ID=63843675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710237511.9A Active CN108694365B (en) | 2017-04-12 | 2017-04-12 | Image acquisition method and terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108694365B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111357676A (en) * | 2019-11-19 | 2020-07-03 | 台湾立讯精密有限公司 | Animal physical ability tracking device and system thereof |
| WO2020232632A1 (en) * | 2019-05-21 | 2020-11-26 | Boe Technology Group Co., Ltd. | A sensor circuit for generating and detecting ultrasonic sensing signal, an ultrasonic sensing display apparatus |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005072240A2 (en) * | 2004-01-23 | 2005-08-11 | Ultra-Scan Corporation | Fingerprint scanner and method having an acoustic detector |
| JP2007206873A (en) * | 2006-01-31 | 2007-08-16 | Secom Co Ltd | Fingerprint image generation device |
| JP2007206875A (en) * | 2006-01-31 | 2007-08-16 | Secom Co Ltd | Fingerprint image generation device |
| CN104424420A (en) * | 2013-08-30 | 2015-03-18 | 业鑫科技顾问股份有限公司 | Electronic device |
| CN104809431A (en) * | 2015-04-03 | 2015-07-29 | 业成光电（深圳）有限公司 | Ultrasonic sensing device |
| CN105046243A (en) * | 2015-08-25 | 2015-11-11 | 业成光电（深圳）有限公司 | Display device |
| CN105389545A (en) * | 2015-10-23 | 2016-03-09 | 江苏久祥汽车电器集团有限公司 | Method for detecting fingerprints by utilizing ultrasonic waves, and novel biological identification robot system |
| CN105468945A (en) * | 2015-11-23 | 2016-04-06 | 努比亚技术有限公司 | User verification method and terminal |
| CN105868742A (en) * | 2016-05-26 | 2016-08-17 | 京东方科技集团股份有限公司 | Display unit and display device |
| CN105993020A (en) * | 2014-02-23 | 2016-10-05 | 高通股份有限公司 | Ultrasonic authenticating button |
| CN106066986A (en) * | 2015-04-21 | 2016-11-02 | 三星电子株式会社 | For the method and apparatus sensing fingerprint |
| CN106203295A (en) * | 2016-06-30 | 2016-12-07 | 联想(北京)有限公司 | A kind of fingerprint detection method and electronic equipment |
| US20160358006A1 (en) * | 2014-09-29 | 2016-12-08 | Shenzhen Huiding Technology Co., Ltd. | Fingerprint detection circuit, and capacitive fingerprint sensor and mobile terminal thereof |
| CN106227446A (en) * | 2016-07-21 | 2016-12-14 | 珠海市魅族科技有限公司 | The control method of electronic equipment and associated electronic device |
| CN106384088A (en) * | 2016-09-05 | 2017-02-08 | 南昌欧菲生物识别技术有限公司 | Ultrasonic wave fingerprint sensor |
| CN106446817A (en) * | 2016-09-18 | 2017-02-22 | 京东方科技集团股份有限公司 | Fingerprint identification device, touch display panel, and fingerprint identification device driving method |
| CN106537415A (en) * | 2016-10-20 | 2017-03-22 | 深圳市汇顶科技股份有限公司 | Fingerprint-based pressure detection method and apparatus |
| CN106548154A (en) * | 2016-10-28 | 2017-03-29 | 努比亚技术有限公司 | A kind of method and device for realizing fingerprint recognition |
-
2017
- 2017-04-12 CN CN201710237511.9A patent/CN108694365B/en active Active
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005072240A2 (en) * | 2004-01-23 | 2005-08-11 | Ultra-Scan Corporation | Fingerprint scanner and method having an acoustic detector |
| JP2007206873A (en) * | 2006-01-31 | 2007-08-16 | Secom Co Ltd | Fingerprint image generation device |
| JP2007206875A (en) * | 2006-01-31 | 2007-08-16 | Secom Co Ltd | Fingerprint image generation device |
| CN104424420A (en) * | 2013-08-30 | 2015-03-18 | 业鑫科技顾问股份有限公司 | Electronic device |
| CN105993020A (en) * | 2014-02-23 | 2016-10-05 | 高通股份有限公司 | Ultrasonic authenticating button |
| US20160358006A1 (en) * | 2014-09-29 | 2016-12-08 | Shenzhen Huiding Technology Co., Ltd. | Fingerprint detection circuit, and capacitive fingerprint sensor and mobile terminal thereof |
| CN104809431A (en) * | 2015-04-03 | 2015-07-29 | 业成光电（深圳）有限公司 | Ultrasonic sensing device |
| CN106066986A (en) * | 2015-04-21 | 2016-11-02 | 三星电子株式会社 | For the method and apparatus sensing fingerprint |
| CN105046243A (en) * | 2015-08-25 | 2015-11-11 | 业成光电（深圳）有限公司 | Display device |
| CN105389545A (en) * | 2015-10-23 | 2016-03-09 | 江苏久祥汽车电器集团有限公司 | Method for detecting fingerprints by utilizing ultrasonic waves, and novel biological identification robot system |
| CN105468945A (en) * | 2015-11-23 | 2016-04-06 | 努比亚技术有限公司 | User verification method and terminal |
| CN105868742A (en) * | 2016-05-26 | 2016-08-17 | 京东方科技集团股份有限公司 | Display unit and display device |
| CN106203295A (en) * | 2016-06-30 | 2016-12-07 | 联想(北京)有限公司 | A kind of fingerprint detection method and electronic equipment |
| CN106227446A (en) * | 2016-07-21 | 2016-12-14 | 珠海市魅族科技有限公司 | The control method of electronic equipment and associated electronic device |
| CN106384088A (en) * | 2016-09-05 | 2017-02-08 | 南昌欧菲生物识别技术有限公司 | Ultrasonic wave fingerprint sensor |
| CN106446817A (en) * | 2016-09-18 | 2017-02-22 | 京东方科技集团股份有限公司 | Fingerprint identification device, touch display panel, and fingerprint identification device driving method |
| CN106537415A (en) * | 2016-10-20 | 2017-03-22 | 深圳市汇顶科技股份有限公司 | Fingerprint-based pressure detection method and apparatus |
| CN106548154A (en) * | 2016-10-28 | 2017-03-29 | 努比亚技术有限公司 | A kind of method and device for realizing fingerprint recognition |
Non-Patent Citations (2)
| Title |
|---|
| MOEEN UD DIN: "Data Acquisition System For Fingerprint Ultrasonic Imaging Device", 《ELECTRONIC THESES AND DISSERTATIONS》 * |
| 张亮 等: "指纹图像传感器技术关键及发展趋势", 《传感器技术》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020232632A1 (en) * | 2019-05-21 | 2020-11-26 | Boe Technology Group Co., Ltd. | A sensor circuit for generating and detecting ultrasonic sensing signal, an ultrasonic sensing display apparatus |
| CN111357676A (en) * | 2019-11-19 | 2020-07-03 | 台湾立讯精密有限公司 | Animal physical ability tracking device and system thereof |
| TWI712391B (en) * | 2019-11-19 | 2020-12-11 | 台灣立訊精密有限公司 | Animal physical activity tracking device and system having the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108694365B (en) | 2022-11-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107942335A (en) | A kind of object identification method and equipment | |
| CN105027128A (en) | Handheld medical imaging apparatus with cursor pointer control | |
| CN101612048A (en) | A kind of ultrasound probe and ultrasonic scanning device | |
| CA2858409C (en) | Imaging apparatus | |
| CN105877779A (en) | Thermal Therapy Ablation Detection With Ultrasound | |
| WO2019060114A1 (en) | Access to high frame-rate radar data via a circular buffer | |
| CN108694365A (en) | A kind of image acquiring method and terminal | |
| CN109598264A (en) | Grasping body method and device | |
| JP2016512130A (en) | System and method for detecting and presenting interventional devices via ultrasound imaging | |
| DE102005028980A1 (en) | Adaptive ultrasound imaging system | |
| CN109164171A (en) | A kind of supersonic detection method, ultrasonic testing system and relevant apparatus | |
| JP2000023976A (en) | System for imaging ultrasonic scatterer and method therefor | |
| CN106170250A (en) | For obtaining the device triggering signal from ultrasonic system | |
| CN113749690B (en) | Blood vessel blood flow measuring method, device and storage medium | |
| CN110461242A (en) | For ocular tissue or the ultrasonic system of other sensitive organizations imaging and protection | |
| CN113040872A (en) | Method for determining puncture state, method for determining needle point position and ultrasonic imaging device | |
| CN112639517A (en) | Laser radar ranging method and device, computer equipment and storage medium | |
| CN102143710A (en) | Ultrasonographic device, ultrasonographic device data processing method | |
| US6438258B1 (en) | Ultrasound image processing employing non-linear tissue response backscatter signals | |
| JPH02197953A (en) | Information processor and information processing method | |
| CN109788941A (en) | The system and method for CPU and GPU processing parallelization for supersonic imaging apparatus | |
| US6048313A (en) | Method and apparatus for fractal-based enhancement of ultrasound imaging | |
| CN101004450B (en) | Monitoring device and method of ultrasonic locating read-write sitting posture | |
| CN203252666U (en) | Ultrasonic image diagnosis device and ultrasonic probe | |
| US20210038197A1 (en) | Ultrasound imaging method and ultrasound imaging device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 330096 Jiangxi Nanchang Nanchang hi tech Industrial Development Zone, east of six road, south of Tianxiang Avenue. Applicant after: OFilm Microelectronics Technology Co.,Ltd. Address before: 330029 No. 1189 Jingdong Avenue, Nanchang high tech Zone, Jiangxi Applicant before: NANCHANG OFILM BIO-IDENTIFICATION TECHNOLOGY Co.,Ltd. Address after: 330096 No.699 Tianxiang North Avenue, Nanchang hi tech Industrial Development Zone, Nanchang City, Jiangxi Province Applicant after: Jiangxi OMS Microelectronics Co.,Ltd. Address before: 330096 Jiangxi Nanchang Nanchang hi tech Industrial Development Zone, east of six road, south of Tianxiang Avenue. Applicant before: OFilm Microelectronics Technology Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |