CN106408560B - Method and device for rapidly acquiring effective image - Google Patents
Method and device for rapidly acquiring effective image Download PDFInfo
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- CN106408560B CN106408560B CN201610804565.4A CN201610804565A CN106408560B CN 106408560 B CN106408560 B CN 106408560B CN 201610804565 A CN201610804565 A CN 201610804565A CN 106408560 B CN106408560 B CN 106408560B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/017—Gesture based interaction, e.g. based on a set of recognized hand gestures
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0481—Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
- G06F3/04812—Interaction techniques based on cursor appearance or behaviour, e.g. being affected by the presence of displayed objects
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10048—Infrared image
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Abstract
The invention provides a method for quickly acquiring an effective image, which comprises the following steps: receiving a preset starting instruction, and starting the camera and the infrared sensor; determining the position of effective content according to the position of the finger of the user, which is acquired by the infrared sensor, in the original image shot by the camera; and intercepting the original image according to the position of the effective content to obtain an effective image. According to the invention, the effective image can be effectively obtained by the way that the finger of the user touches the actual position, the operation is more convenient, and the image capturing efficiency is high.
Description
Technical Field
The invention belongs to the field of image processing, and particularly relates to a method and a device for quickly acquiring an effective image.
Background
With the development of science and technology, cameras are arranged on more and more electronic devices. The image acquired by the camera can facilitate the user to rapidly and effectively acquire the field data. For example, an image including topic information is shot by a camera of the learning machine, and text information in the image can be acquired by combining a text recognition tool. And matching is carried out according to the acquired text information, so that the title search can be effectively carried out.
In the image collected by the camera, the image required by the user may be a part of the area. For example, when recognizing characters in an image, the user only needs to recognize the content information including a part of the title. Therefore, the user typically intercepts the image. At present, the image capture mode is usually that a user adjusts the size of a selection box area to enable the selection box area to cover the subject to be captured by the user, and after the adjustment is completed, a confirmation key is clicked to complete the screenshot.
Because the size of the selection frame needs to be adjusted in the prior art for image interception, clicking confirmation is performed after the adjustment is completed, the interception process is troublesome, and the interception efficiency is not improved.
Disclosure of Invention
The invention aims to provide a method for quickly acquiring an effective image, which aims to solve the problems that in the prior art, the size of a selection frame needs to be adjusted when the image is intercepted, clicking confirmation is carried out after the adjustment is finished, the intercepting process is troublesome, and the intercepting efficiency is not improved.
In a first aspect, an embodiment of the present invention provides a method for quickly acquiring an effective image, where the method includes:
receiving a preset starting instruction, and starting the camera and the infrared sensor;
determining the position of effective content according to the position of the finger of the user, which is acquired by the infrared sensor, in the original image shot by the camera;
and intercepting the original image according to the position of the effective content to obtain an effective image.
With reference to the first aspect, in a first possible implementation manner of the first aspect,
the step of determining the position of the effective content from the position of the finger of the user collected by the infrared sensor in the original image shot by the camera comprises the following steps:
when the equipment is detected to be in a stable state, shooting an original image comprising an effective image through a camera;
detecting a first infrared signal through an infrared sensor, and taking the fingertip end position of the first infrared signal as the initial position of the effective image;
and detecting a second infrared signal through an infrared sensor, and taking the fingertip end position of the second infrared signal as the end position of the effective image.
With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the detecting a first infrared signal by an infrared sensor, and the step of using an end position of the first infrared signal as a start position of the effective image further includes: displaying a first cursor in the original image, wherein the position of the first cursor corresponds to the starting position;
the step of detecting a second infrared signal by an infrared sensor and taking the end position of the second infrared signal as the end position of the effective image further includes: and displaying a second cursor in the original image, wherein the position of the second cursor corresponds to the end position.
With reference to the first aspect, in a third possible implementation manner of the first aspect, the determining, in the original image captured by the camera, the position of the finger of the user, which is acquired by the infrared sensor, the position of the effective content specifically includes:
when the equipment is detected to be in a stable state, shooting an original image comprising an effective image through a camera;
and detecting a third infrared signal through an infrared sensor, wherein the tail end positions of two fingertips included according to the third infrared signal are respectively used as the starting position and the ending position of the effective image.
With reference to the first aspect, in a fourth possible implementation manner of the first aspect, the preset starting instruction includes one or more of a preset hardware switch starting instruction, an unlocking pattern starting instruction, and a fingerprint unlocking starting instruction.
In a second aspect, an embodiment of the present invention provides an apparatus for quickly acquiring an effective image, where the apparatus includes:
the starting unit is used for receiving a preset starting instruction and starting the camera and the infrared sensor;
the position determining unit is used for determining the position of effective content according to the position of the finger of the user, which is acquired by the infrared sensor, in the original image shot by the camera;
and the effective image intercepting unit is used for intercepting the original image according to the position of the effective content to obtain an effective image.
With reference to the second aspect, in a first possible implementation manner of the second aspect, the position determining unit includes:
the first shooting subunit is used for shooting an original image including an effective image through a camera when the device is detected to be in a stable state;
the initial position determining subunit is used for detecting a first infrared signal through an infrared sensor, and taking the fingertip end position of the first infrared signal as the initial position of the effective image;
and the end position determining subunit is used for detecting a second infrared signal through an infrared sensor, and taking the end position of the fingertip of the second infrared signal as the end position of the effective image.
With reference to the first possible implementation manner of the second aspect, in a second possible implementation manner of the second aspect, the starting position determining subunit is further configured to: displaying a first cursor in the original image, wherein the position of the first cursor corresponds to the starting position;
the end position determining subunit is further configured to: and displaying a second cursor in the original image, wherein the position of the second cursor corresponds to the end position.
With reference to the second aspect, in a third possible implementation manner of the second aspect, the position determining unit includes:
the second shooting subunit is used for shooting an original image including an effective image through the camera when the device is detected to be in a stable state;
and the position simultaneous determination subunit is used for detecting a third infrared signal through an infrared sensor, and taking the end positions of two fingertips included by the third infrared signal as the starting position and the end position of the effective image respectively.
With reference to the second aspect, in a fourth possible implementation manner of the second aspect, the preset starting instruction includes one or more of a preset hardware switch starting instruction, an unlocking pattern starting instruction, and a fingerprint unlocking starting instruction.
In the invention, the camera and the infrared sensor are started, the camera shoots an original image, the infrared sensor detects an infrared signal corresponding to a user finger in the original image, the position of effective content is determined according to the detected infrared signal, and the effective image can be obtained by intercepting the original image according to the position. According to the invention, the effective image can be effectively obtained by the way that the finger of the user touches the actual position, the operation is more convenient, and the image capturing efficiency is high.
Drawings
Fig. 1 is a flowchart of an implementation of a method for rapidly acquiring an effective image according to a first embodiment of the present invention;
FIG. 2 is a flowchart illustrating an implementation of a method for rapidly acquiring a valid image according to a second embodiment of the present invention;
FIG. 3 is a flowchart illustrating an implementation of a method for rapidly acquiring a valid image according to a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of an apparatus for rapidly acquiring an effective image according to a fourth embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The embodiment of the invention aims to provide a method for quickly acquiring an effective image, so as to solve the problem that in the prior art, a user needs to select a frame on a shot image in the process of acquiring an image of a target area, and clicks a confirmation key after the frame selection is finished to generate a required image. The image acquisition mode needs a plurality of operation steps of the user, and the operation is troublesome, so that the efficiency of acquiring the target area image is low. The invention will be further described with reference to the accompanying drawings.
The first embodiment is as follows:
fig. 1 shows a flow of implementing the method for rapidly acquiring an effective image according to the first embodiment of the present invention, which is detailed as follows:
in step S101, a preset activation instruction is received, and the camera and the infrared sensor are activated.
Specifically, the starting instruction in the embodiment of the present invention may be a starting instruction of a hardware switch, or may also be a starting instruction corresponding to an unlocking path in an unlocking image, or may also be preset feature information of a fingerprint, compare fingerprint features received when the fingerprint is unlocked, and directly generate the starting instruction when a matching requirement is met.
The hardware switch according to the embodiment of the present invention may be a preset special switch for starting the image capturing application. Of course, the switch may be a new switch added to the terminal, may be defined by a certain switch based on the switch of the existing terminal, or may be a combination of two or two switches of the existing terminal.
The starting instruction can be triggered when the terminal is in a standby state or a shutdown state, and can also be triggered when the terminal is in an activation state of other application programs. And when the terminal is in the power-off state, triggering the terminal to be powered on, and then processing a starting instruction of the image capturing application program in the power-on state.
The infrared sensor may be used to detect infrared objects, which may be, for example, human body parts or the like. When the hand of the user is placed in the detection area, characteristic information such as the appearance of the hand in the detection area can be obtained through the infrared sensor.
In step S102, in the original image captured by the camera, the position of the effective content is determined by the position of the finger of the user, which is captured by the infrared sensor.
Specifically, the original image in the embodiment of the present invention may be an image corresponding to the image when the device is in a stable state, that is, when the content of the picture acquired by the camera in the device does not change.
In addition, in order to facilitate the user to obtain the effective image, when it is detected that the device is currently in a stable state, prompt information of a position where the effective image is performed may be sent, for example, a text prompt, an image prompt, a voice prompt, and the like may be sent.
After the original image is taken, the apparatus continues to be kept in a stable state, thereby determining the position of the effective image. The positions of the effective images may include a start position and an end position, and of course, the corresponding effective image may be searched for by one position.
For example, for the determination method of the start position and the end position, the user may point a finger at the start positions corresponding to all effective images, and after the device detects the finger of the user through the infrared sensor, according to the position of the finger, the corresponding position is searched on the original image as the start position of the effective image. After the initial position is found, a determination instruction is sent, and the determination instruction can be represented as a change of the state of a cursor displayed on a screen of the device, such as a change of a flashing state to a static state.
Similarly, after the initial position is determined, the stable state of the device is continuously maintained, the user can point the finger to the end positions corresponding to all the effective images, and after the device detects the finger of the user through the infrared sensor, the corresponding position is searched on the original image as the end position of the effective image according to the position of the finger. After the initial position is found, a determination instruction is sent, and the determination instruction can be represented as a change of the state of a cursor displayed on a screen of the device, such as a change of a flashing state to a static state.
In step S103, an effective image is obtained by capturing the original image according to the position of the effective content.
According to the position of the effective content, such as the starting position and the ending position, the area of the effective image can be directly generated, and the effective image can be obtained by intercepting the area. Subsequent searching or processing is carried out according to the effective image, so that subsequent operation is more targeted, and the precision is higher.
Example two:
fig. 2 shows a flow of implementing the method for rapidly acquiring an effective image according to the second embodiment of the present invention, which is detailed as follows:
in step S201, a preset activation instruction is received, and the camera and the infrared sensor are activated.
In step S202, when it is detected that the apparatus is in a steady state, an original image including a valid image is captured by the camera.
The stable state in the embodiment of the invention indicates that the equipment does not shake, rotate or move back and forth currently, and the content of the image acquired by the camera of the equipment is not changed.
The original image obtained by the camera comprises the content of the effective image which is expected to be obtained by the user. The original image is automatically acquired without the need of a user to click a shooting key and other operations. Therefore, by judging the stable state, the automatically acquired original image is beneficial to reducing the operation steps of the user and improving the use convenience of the user.
In step S203, a first infrared signal is detected by an infrared sensor, and a fingertip end position according to the first infrared signal is used as a start position of the effective image.
When the device continues to maintain a stable state, the user may be prompted to input the first infrared signal, i.e., the user may click on the starting position corresponding to the image to be intercepted with a finger. The infrared sensor detects the hand position of a user, and when the fingers stop moving, the position pointed by the fingers is identified according to the characteristic information of the fingers, so that the initial position of an effective image in an original image can be effectively determined.
As an optimizable embodiment, after the start position of the effective image is determined, a first cursor may be displayed in the original image, where a position of the first cursor corresponds to the start position. Or the first cursor may be displayed during the detection process, and after the initial position is determined, the state of the first cursor is changed, for example, the first cursor is switched from a blinking state to a static state.
In step S204, a second infrared signal is detected by the infrared sensor, and a fingertip end position according to the second infrared signal is used as an end position of the effective image.
Similarly, when the device continues to maintain a stable state, the user may be prompted to input a second infrared signal, that is, the user may click on the end position corresponding to the image to be captured with a finger. The infrared sensor detects the hand position of a user, and when the fingers stop moving, the position pointed by the fingers is identified according to the characteristic information of the fingers, so that the end position of an effective image in an original image can be effectively determined.
As an optimizable embodiment, after the end position of the effective image is determined, a second cursor may be displayed in the original image, the position of the second cursor corresponding to the end position. Or the second cursor may be displayed during the detection process, and after the ending position is determined, the state of the second cursor is changed, for example, the state is switched from a blinking state to a static state.
In step S205, an effective image is obtained by capturing the original image according to the position of the effective content.
After the position of the second cursor is determined, the effective image can be automatically intercepted, so that the convenience of image interception is further improved.
On the basis of the first embodiment, the invention specifically introduces the method for determining the position of the effective image through two times of finger pointing, thereby improving the convenience of operation and being beneficial to the precision of effective image interception.
Example three:
fig. 3 shows a flow of implementing the method for rapidly acquiring an effective image according to the third embodiment of the present invention, which is detailed as follows:
in step S301, a preset activation instruction is received, and the camera and the infrared sensor are activated.
In step S302, when it is detected that the apparatus is in a steady state, an original image including a valid image is captured by the camera.
In step S303, a third infrared signal is detected by an infrared sensor, and two fingertip end positions included according to the third infrared signal are respectively used as a start position and an end position of the effective image.
In order to further improve the efficiency of capturing the effective image, the embodiment of the present invention may further include determining the number of detectable fingertips in the third infrared signal, and when the number of fingertips is two, determining the start position and the end position of the effective image at the same time.
When the number of the fingertips detected at the same time exceeds two, it indicates that the user may be an input error, or the position of the uppermost finger is directly used as the start position of the effective image, and the position of the lowermost finger is used as the end position of the effective image.
The embodiment of the invention further judges the number of the fingertips in the image identified by the infrared sensor on the basis of the second embodiment, and can directly determine the starting position and the ending position of the effective image when the number of the fingertips is two, thereby further improving the convenience of identification.
Example four:
fig. 4 is a schematic structural diagram of an apparatus for rapidly acquiring an effective image according to an embodiment of the present invention, which is detailed as follows:
the device for rapidly acquiring the effective image comprises:
the starting unit 401 is configured to receive a preset starting instruction, and start the camera and the infrared sensor;
a position determining unit 402, configured to determine, in an original image captured by the camera, a position of an effective content from a position of a finger of a user, which is acquired by the infrared sensor;
an effective image capturing unit 403, capturing an effective image from the original image according to the position of the effective content.
Preferably, the position determination unit includes:
the first shooting subunit is used for shooting an original image including an effective image through a camera when the device is detected to be in a stable state;
the initial position determining subunit is used for detecting a first infrared signal through an infrared sensor, and taking the fingertip end position of the first infrared signal as the initial position of the effective image;
and the end position determining subunit is used for detecting a second infrared signal through an infrared sensor, and taking the end position of the fingertip of the second infrared signal as the end position of the effective image.
Preferably, the starting position determining subunit is further configured to: displaying a first cursor in the original image, wherein the position of the first cursor corresponds to the starting position;
the end position determining subunit is further configured to: and displaying a second cursor in the original image, wherein the position of the second cursor corresponds to the end position.
Preferably, the position determination unit includes:
the second shooting subunit is used for shooting an original image including an effective image through the camera when the device is detected to be in a stable state;
and the position simultaneous determination subunit is used for detecting a third infrared signal through an infrared sensor, and taking the end positions of two fingertips included by the third infrared signal as the starting position and the end position of the effective image respectively.
Preferably, the preset starting instruction includes one or more of a preset hardware switch starting instruction, an unlocking pattern starting instruction, and a fingerprint unlocking starting instruction.
The apparatus for rapidly acquiring an effective image according to the embodiment of the present invention corresponds to the method for rapidly acquiring an effective image according to the first to third embodiments, and will not be repeated herein.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. A method for rapidly acquiring a valid image, the method comprising:
when the terminal is in a standby state, receiving a preset starting instruction, and starting the camera and the infrared sensor;
determining the position of effective content according to the position of the finger of the user, which is acquired by the infrared sensor, in an original image shot by the camera, wherein the original image is a corresponding image when the picture content acquired by the camera does not change;
intercepting the original image according to the position of the effective content to obtain an effective image, and searching according to the effective image;
the step of determining the position of the effective content from the position of the finger of the user collected by the infrared sensor in the original image shot by the camera comprises the following steps:
when the equipment is detected to be in a stable state, shooting an original image comprising an effective image through a camera;
detecting a first infrared signal through an infrared sensor, and taking the fingertip end position of the first infrared signal as the initial position of the effective image;
detecting a second infrared signal through an infrared sensor, and taking the fingertip end position of the second infrared signal as an end position of the effective image;
the step of detecting a first infrared signal by an infrared sensor and taking the end position of the first infrared signal as the start position of the effective image further includes: displaying a first cursor in the original image, wherein the position of the first cursor corresponds to the starting position;
the step of detecting a second infrared signal by an infrared sensor and taking the end position of the second infrared signal as the end position of the effective image further includes: and displaying a second cursor in the original image, wherein the position of the second cursor corresponds to the end position.
2. The method according to claim 1, wherein the step of determining the position of the effective content from the position of the finger of the user captured by the infrared sensor in the original image captured by the camera specifically comprises:
when the equipment is detected to be in a stable state, shooting an original image comprising an effective image through a camera;
and detecting a third infrared signal through an infrared sensor, wherein the tail end positions of two fingertips included according to the third infrared signal are respectively used as the starting position and the ending position of the effective image.
3. The method according to claim 1, wherein the preset starting instruction comprises one or more of a preset hardware switch starting instruction, an unlocking pattern starting instruction and a fingerprint unlocking starting instruction.
4. An apparatus for rapidly acquiring a valid image, the apparatus comprising:
the starting unit is used for receiving a preset starting instruction and starting the camera and the infrared sensor when the terminal is in a standby state;
the position determining unit is used for determining the position of effective content according to the position of the finger of the user, which is acquired by the infrared sensor, in an original image shot by the camera, wherein the original image is a corresponding image when the picture content acquired by the camera does not change;
the effective image intercepting unit is used for intercepting the original image to obtain an effective image according to the position of the effective content and searching according to the effective image;
the position determination unit includes:
the first shooting subunit is used for shooting an original image including an effective image through a camera when the device is detected to be in a stable state;
the initial position determining subunit is used for detecting a first infrared signal through an infrared sensor, and taking the fingertip end position of the first infrared signal as the initial position of the effective image;
an end position determining subunit, configured to detect a second infrared signal by an infrared sensor, and use a fingertip end position of the second infrared signal as an end position of the effective image;
the starting position determining subunit is further configured to: displaying a first cursor in the original image, wherein the position of the first cursor corresponds to the starting position;
the end position determining subunit is further configured to: and displaying a second cursor in the original image, wherein the position of the second cursor corresponds to the end position.
5. The apparatus of claim 4, wherein the position determining unit comprises:
the second shooting subunit is used for shooting an original image including an effective image through the camera when the device is detected to be in a stable state;
and the position simultaneous determination subunit is used for detecting a third infrared signal through an infrared sensor, and taking the end positions of two fingertips included by the third infrared signal as the starting position and the end position of the effective image respectively.
6. The device according to claim 4, wherein the preset starting instructions comprise one or more of preset hardware switch starting instructions, unlocking pattern starting instructions and fingerprint unlocking starting instructions.
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| CN110633027A (en) * | 2019-09-16 | 2019-12-31 | 广东小天才科技有限公司 | Point reading implementation method, system, computer equipment and storage medium |
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