CN117880629A

CN117880629A - Focal length adjusting method, intelligent terminal and storage medium

Info

Publication number: CN117880629A
Application number: CN202410051581.5A
Authority: CN
Inventors: 杨静静; 胡猛猛
Original assignee: Shenzhen Taihengnuo Technology Co ltd
Current assignee: Shenzhen Taihengnuo Technology Co ltd
Priority date: 2024-01-12
Filing date: 2024-01-12
Publication date: 2024-04-12

Abstract

The application provides a focal length adjusting method, an intelligent terminal and a storage medium, wherein the focal length adjusting method comprises the following steps: detecting whether a preset image exists in the acquired image data; if yes, the focal length of the image acquisition device is adjusted according to a preset image. Through the technical scheme, the user can remotely adjust through the gesture focusing distance, and the shooting experience of the user is improved.

Description

Focal length adjusting method, intelligent terminal and storage medium

Technical Field

The application relates to the field of intelligent terminals, in particular to a focal length adjusting method, an intelligent terminal and a storage medium.

Background

In reality, when a user uses an intelligent terminal to take a photograph, the user performs a click sliding operation on a specific control displayed on the output of a photographing interface, so as to correspondingly adjust the photographing focal length.

In the process of designing and implementing the present application, the inventors found that at least the following problems exist: if the user uses the stabilising arrangement such as selfie stick, tripod to fix intelligent terminal to when shooting the operation under the circumstances of keeping away from this intelligent terminal, because can't click the control on the interface of shooing, thus can't adjust the focus of intelligent terminal shooting image by a long distance.

The foregoing description is provided for general background information and does not necessarily constitute prior art.

Disclosure of Invention

Aiming at the technical problems, the application provides a focal length adjusting method, an intelligent terminal and a storage medium, so that a user can adjust the shooting focal length of the intelligent terminal under the condition of far away from the intelligent terminal for image shooting.

The application provides a focal length adjustment method, which can be applied to an intelligent terminal provided with an image acquisition device, and comprises the following steps:

s10: detecting whether a preset image exists in the acquired image data;

s20: if yes, the focal length of the image acquisition device is adjusted according to a preset image.

Alternatively, the preset graphic may be a gesture image, or a user's head or eyes or face or leg moving image.

Optionally, step S10 includes:

and detecting whether a preset image exists in the acquired image data or not when the image acquisition device is operated to acquire the image data.

Optionally, step S20 includes the steps of:

s201: if the fact that the preset image exists in the image data is detected, determining a motion trail according to the preset image;

s202: and adjusting the focal length of the image acquisition device according to the motion trail.

Optionally, step S202 includes:

determining the direction of the motion trail;

acquiring a focus increasing direction and a focus decreasing direction of the image acquisition device in a preset photographing function interface;

if the direction of the motion track is consistent with the focal length increasing direction of the image acquisition device, increasing the focal length of the image acquisition device;

and if the direction of the motion track is consistent with the focal length reduction direction of the image acquisition device, reducing the focal length of the image acquisition device.

Optionally, step S202 further includes:

determining a first spatial distance of a motion trail;

determining a second spatial distance between a subject in the image data and the image acquisition device;

and adjusting the focal length of the image acquisition device according to the first spatial distance of the motion track and/or the second spatial distance between the shot object in the image data and the image acquisition device and/or the focal length adjustment range of the image acquisition device.

Optionally, step S20 includes the steps of:

s30: if the preset image exists in the image data, determining whether the preset image accords with a preset focal length adjustment triggering condition;

s40: and if the preset image accords with the focal length adjustment triggering condition, adjusting the focal length of the image acquisition device according to the preset image.

Optionally, step S30 includes:

determining a motion trail according to a preset image;

detecting whether the motion trail is consistent with a preset motion trail;

and if the motion trail is consistent with the preset motion trail, determining that the preset image meets the focus adjustment triggering condition.

Optionally, step S40 includes:

and if the preset image accords with the focal length adjustment triggering condition, starting a focal length adjustment function of the image acquisition device and adjusting the focal length of the image acquisition device according to the preset image.

The application also provides a focal length adjustment method which can be applied to an intelligent terminal provided with an image acquisition device and comprises the following steps:

s10: detecting whether a preset image exists in the acquired image data;

Optionally, step S10 includes: and detecting whether a preset image exists in the acquired image data or not when the image acquisition device is operated to acquire the image data.

Optionally, step S20 includes the steps of:

Optionally, step S202 includes at least one of:

if the direction of the motion track is consistent with the focal length reduction direction of the image acquisition device, reducing the focal length of the image acquisition device;

and adjusting the focal length of the image acquisition device according to at least one of the first spatial distance of the motion trail, the second spatial distance between the shot object in the image data and the image acquisition device and the focal length adjustment range of the image acquisition device.

Optionally, the method further comprises at least one of:

determining the movement direction of the gesture movement track;

determining a first spatial distance of a motion trail;

a second spatial distance between a subject in the image data and the image acquisition device is determined.

Optionally, the adjusting the focal length of the image capturing device according to a preset image includes:

And if the preset image accords with the focal length adjustment triggering condition, adjusting the focal length of the image acquisition device according to the preset image.

Optionally, the preset image meets a focal length adjustment triggering condition, including:

the motion trail determined according to the preset image is consistent with the preset motion trail.

and starting a focal length adjusting function of the image acquisition device and adjusting the focal length of the image acquisition device according to a preset image.

The application also provides an intelligent terminal, including: the device comprises a memory and a processor, wherein the memory stores a focus adjustment program, and the focus adjustment program realizes the steps of any focus adjustment method when being executed by the processor.

The present application also provides a storage medium storing a computer program which, when executed by a processor, implements the steps of the focus adjustment method as described in any one of the above.

As described above, the focal length adjustment method of the present application may be applied to an intelligent terminal configured with an image acquisition device, and includes the steps of: s10: detecting whether a preset image exists in the acquired image data; s20: if yes, the focal length of the image acquisition device is adjusted according to a preset image. Through the technical scheme of this application, can realize that the user is keeping away from under the condition that intelligent terminal carried out image shooting, can adjust intelligent terminal's shooting focus through easy and simple to handle's gesture before intelligent terminal's image acquisition device.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application. In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic hardware structure diagram of an intelligent terminal implementing various embodiments of the present application;

fig. 2 is a schematic diagram of a communication network system according to an embodiment of the present application;

fig. 3 is a flow chart illustrating a focus adjustment method according to the first embodiment;

fig. 4 is a user graphical interface diagram of a focus adjustment method according to the first embodiment;

fig. 5 is a flowchart illustrating a focus adjustment method according to a third embodiment;

fig. 6 is a flowchart showing a specific application of the focus adjustment method according to the third embodiment;

fig. 7 is a user graphical interface diagram of a focus adjustment method according to a third embodiment.

The realization, functional characteristics and advantages of the present application will be further described with reference to the embodiments, referring to the attached drawings. Specific embodiments thereof have been shown by way of example in the drawings and will herein be described in more detail. These drawings and the written description are not intended to limit the scope of the inventive concepts in any way, but to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as detailed in the accompanying claims.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the element defined by the phrase "comprising one … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element, and furthermore, elements having the same name in different embodiments of the present application may have the same meaning or may have different meanings, a particular meaning of which is to be determined by its interpretation in this particular embodiment or by further combining the context of this particular embodiment.

It should be understood that although the terms first, second, third, etc. may be used herein to describe various information, these information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope herein. The word "if" as used herein may be interpreted as "at … …" or "at … …" or "responsive to a determination", depending on the context. Furthermore, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes," and/or "including" specify the presence of stated features, steps, operations, elements, components, items, categories, and/or groups, but do not preclude the presence, presence or addition of one or more other features, steps, operations, elements, components, items, categories, and/or groups. The terms "or," "and/or," "including at least one of," and the like, as used herein, may be construed as inclusive, or meaning any one or any combination. For example, "including at least one of: A. b, C "means" any one of the following: a, A is as follows; b, a step of preparing a composite material; c, performing operation; a and B; a and C; b and C; a and B and C ", again as examples," A, B or C "or" A, B and/or C "means" any of the following: a, A is as follows; b, a step of preparing a composite material; c, performing operation; a and B; a and C; b and C; a and B and C). An exception to this definition will occur only when a combination of elements, functions, steps or operations are in some way inherently mutually exclusive.

It should be understood that, although the steps in the flowcharts in the embodiments of the present application are shown in order as indicated by the arrows, these steps are not necessarily performed in order as indicated by the arrows. The steps are not strictly limited in order and may be performed in other orders, unless explicitly stated herein. Moreover, at least some of the steps in the figures may include multiple sub-steps or stages that are not necessarily performed at the same time, but may be performed at different times, the order of their execution not necessarily occurring in sequence, but may be performed alternately or alternately with other steps or at least a portion of the other steps or stages.

The words "if", as used herein, may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrase "if determined" or "if detected (stated condition or event)" may be interpreted as "when determined" or "in response to determination" or "when detected (stated condition or event)" or "in response to detection (stated condition or event), depending on the context.

It should be noted that, in this document, step numbers such as S10 and S20 are adopted, and the purpose of the present invention is to more clearly and briefly describe the corresponding content, and not to constitute a substantial limitation on the sequence, and those skilled in the art may execute S20 first and then execute S10 when implementing the present invention, which is within the scope of protection of the present application.

It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

In the following description, suffixes such as "module", "component", or "unit" for representing elements are used only for facilitating the description of the present application, and are not of specific significance per se. Thus, "module," "component," or "unit" may be used in combination.

The intelligent terminal may be implemented in various forms. For example, the smart terminals configured with the image capturing devices described in the present application may include smart terminals such as mobile phones, tablet computers, notebook computers, palm computers, personal digital assistants (Personal Digital Assistant, PDA), portable media players (Portable Media Player, PMP), navigation devices, wearable devices, smart bracelets, pedometers, and fixed terminals such as digital TVs, desktop computers, and the like.

In the following description, an intelligent terminal will be described as an example, and those skilled in the art will understand that the configuration according to the embodiment of the present application can be applied to a fixed type terminal in addition to elements particularly used for a mobile purpose.

Referring to fig. 1, which is a schematic hardware structure of an intelligent terminal for implementing various embodiments of the present application, the intelligent terminal 100 may include: an RF (Radio Frequency) unit 101, a WiFi module 102, an audio output unit 103, an a/V (audio/video) input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109, a processor 110, and a power supply 111. It will be appreciated by those skilled in the art that the configuration of the intelligent terminal shown in fig. 1 is not limiting of the intelligent terminal, and the intelligent terminal may include more or less components than those illustrated, or may combine certain components, or may have a different arrangement of components.

The following describes the components of the intelligent terminal in detail with reference to fig. 1:

the radio frequency unit 101 may be used for receiving and transmitting signals during the information receiving or communication process, specifically, after receiving downlink information of the base station, processing the downlink information by the processor 110; and, the uplink data is transmitted to the base station. Typically, the radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 101 may also communicate with networks and other devices via wireless communications. The wireless communication may use any communication standard or protocol including, but not limited to, GSM (Global System of Mobile communication, global system for mobile communications), GPRS (General Packet Radio Service ), CDMA2000 (Code Division Multiple Access, 2000, CDMA 2000), WCDMA (Wideband Code Division Multiple Access ), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access, time Division synchronous code Division multiple access), FDD-LTE (Frequency Division Duplexing-Long Term Evolution, frequency Division duplex long term evolution), TDD-LTE (Time Division Duplexing-Long Term Evolution, time Division duplex long term evolution) 5G and 6G, and the like.

WiFi belongs to a short-distance wireless transmission technology, and the intelligent terminal can help a user to send and receive emails, browse webpages, access streaming media and the like through the WiFi module 102, so that wireless broadband Internet access is provided for the user. Although fig. 1 shows a WiFi module 102, it is understood that it does not belong to the essential constitution of the intelligent terminal, and can be omitted entirely as required within the scope of not changing the essence of the invention.

The audio output unit 103 may convert audio data received by the radio frequency unit 101 or the WiFi module 102 or stored in the memory 109 into an audio signal and output as sound when the intelligent terminal 100 is in a call signal reception mode, a talk mode, a recording mode, a voice recognition mode, a broadcast reception mode, or the like. Also, the audio output unit 103 may also provide audio output (e.g., a call signal reception sound, a message reception sound, etc.) related to a specific function performed by the smart terminal 100. The audio output unit 103 may include a speaker, a buzzer, and the like.

The a/V input unit 104 is used to receive an audio or video signal. The a/V input unit 104 may include a graphics processor (Graphics Processing Unit, GPU) 1041 and a microphone 1042, the graphics processor 1041 processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 106. The image frames processed by the graphics processor 1041 may be stored in the memory 109 (or other storage medium) or transmitted via the radio frequency unit 101 or the WiFi module 102. The microphone 1042 can receive sound (audio data) via the microphone 1042 in a phone call mode, a recording mode, a voice recognition mode, and the like, and can process such sound into audio data. The processed audio (voice) data may be converted into a format output that can be transmitted to the mobile communication base station via the radio frequency unit 101 in the case of a telephone call mode. The microphone 1042 may implement various types of noise cancellation (or suppression) algorithms to cancel (or suppress) noise or interference generated in the course of receiving and transmitting the audio signal.

The intelligent terminal 100 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Optionally, the light sensor includes an ambient light sensor and a proximity sensor, optionally, the ambient light sensor may adjust the brightness of the display panel 1061 according to the brightness of ambient light, and the proximity sensor may turn off the display panel 1061 and/or the backlight when the smart terminal 100 moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the acceleration in all directions (generally three axes), and can detect the gravity and direction when stationary, and can be used for applications of recognizing the gesture of a mobile phone (such as horizontal and vertical screen switching, related games, magnetometer gesture calibration), vibration recognition related functions (such as pedometer and knocking), and the like; as for other sensors such as fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc. that may also be configured in the mobile phone, the detailed description thereof will be omitted.

The display unit 106 is used to display information input by a user or information provided to the user. The display unit 106 may include a display panel 1061, and the display panel 1061 may be configured in the form of a liquid crystal display (Liquid Crystal Display, LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 107 may be used to receive input numeric or character information and to generate key signal inputs related to user settings and function control of the intelligent terminal. Alternatively, the user input unit 107 may include a touch panel 1071 and other input devices 1072. The touch panel 1071, also referred to as a touch screen, may collect touch operations thereon or thereabout by a user (e.g., operations of the user on the touch panel 1071 or thereabout by using any suitable object or accessory such as a finger, a stylus, etc.) and drive the corresponding connection device according to a predetermined program. The touch panel 1071 may include two parts of a touch detection device and a touch controller. Optionally, the touch detection device detects the touch azimuth of the user, detects a signal brought by touch operation, and transmits the signal to the touch controller; the touch controller receives touch information from the touch detection device, converts it into touch point coordinates, and sends the touch point coordinates to the processor 110, and can receive and execute commands sent from the processor 110. Further, the touch panel 1071 may be implemented in various types such as resistive, capacitive, infrared, and surface acoustic wave. The user input unit 107 may include other input devices 1072 in addition to the touch panel 1071. Alternatively, other input devices 1072 may include, but are not limited to, one or more of a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, mouse, joystick, etc., as specifically not limited herein.

Alternatively, the touch panel 1071 may overlay the display panel 1061, and when the touch panel 1071 detects a touch operation thereon or thereabout, the touch panel 1071 is transferred to the processor 110 to determine the type of touch event, and the processor 110 then provides a corresponding visual output on the display panel 1061 according to the type of touch event. Although in fig. 1, the touch panel 1071 and the display panel 1061 are two independent components for implementing the input and output functions of the smart terminal, in some embodiments, the touch panel 1071 may be integrated with the display panel 1061 to implement the input and output functions of the smart terminal, which is not limited herein.

The interface unit 108 serves as an interface through which at least one external device can be connected with the intelligent terminal 100. For example, the external devices may include a wired or wireless headset port, an external power (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the smart terminal 100 or may be used to transmit data between the smart terminal 100 and an external device.

Memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a storage program area and a storage data area, and alternatively, the storage program area may store an operating system, an application program required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, phonebook, etc.) created according to the use of the handset, etc. In addition, memory 109 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device.

The processor 110 is a control center of the intelligent terminal, connects various parts of the entire intelligent terminal using various interfaces and lines, and performs various functions of the intelligent terminal and processes data by running or executing software programs and/or modules stored in the memory 109 and calling data stored in the memory 109, thereby performing overall monitoring of the intelligent terminal. Processor 110 may include one or more processing units; preferably, the processor 110 may integrate an application processor and a modem processor, the application processor optionally handling mainly an operating system, a user interface, an application program, etc., the modem processor handling mainly wireless communication. It will be appreciated that the modem processor described above may not be integrated into the processor 110.

The intelligent terminal 100 may further include a power source 111 (such as a battery) for supplying power to the respective components, and preferably, the power source 111 may be logically connected to the processor 110 through a power management system, so as to implement functions of managing charging, discharging, power consumption management, etc. through the power management system.

Although not shown in fig. 1, the intelligent terminal 100 may further include a bluetooth module or the like, which is not described herein.

In order to facilitate understanding of the embodiments of the present application, a communication network system on which the intelligent terminal of the present application is based will be described below.

Referring to fig. 2, fig. 2 is a schematic diagram of a communication network system provided in the embodiment of the present application, where the communication network system is an LTE system of a general mobile communication technology, and the LTE system includes a UE (User Equipment) 201, an e-UTRAN (Evolved UMTS Terrestrial Radio Access Network ) 202, an epc (Evolved Packet Core, evolved packet core) 203, and an IP service 204 of an operator that are sequentially connected in communication.

Alternatively, the UE201 may be the terminal 100 described above, which is not described here again.

The E-UTRAN202 includes eNodeB2021 and other eNodeB2022, etc. Alternatively, the eNodeB2021 may connect with other enodebs 2022 over a backhaul (e.g., X2 interface), the eNodeB2021 is connected to the EPC203, and the eNodeB2021 may provide access for the UE201 to the EPC 203.

EPC203 may include MME (Mobility Management Entity ) 2031, hss (Home Subscriber Server, home subscriber server) 2032, other MMEs 2033, SGW (Serving Gate Way) 2034, pgw (PDN Gate Way) 2035 and PCRF (Policy and Charging Rules Function, policy and tariff function entity) 2036, and so on. Optionally, MME2031 is a control node that handles signaling between UE201 and EPC203, providing bearer and connection management. HSS2032 is used to provide registers to manage functions such as home location registers (not shown) and to hold user specific information about service characteristics, data rates, etc. All user data may be sent through SGW2034 and PGW2035 may provide IP address allocation and other functions for UE201, PCRF2036 is a policy and charging control policy decision point for traffic data flows and IP bearer resources, which selects and provides available policy and charging control decisions for a policy and charging enforcement function (not shown).

IP services 204 may include the internet, intranets, IMS (IP Multimedia Subsystem ), or other IP services, etc.

Although the LTE system is described above as an example, it should be understood by those skilled in the art that the present application is not limited to LTE systems, but may be applied to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA, 5G, and future new network systems (e.g., 6G), etc.

Based on the intelligent terminal hardware structure and the communication network system, various embodiments of the application are provided.

First embodiment

In the first embodiment, the focus adjustment method is applicable to an intelligent terminal configured with an image pickup device. As shown in fig. 3, the focal length adjustment method includes the steps of:

s10: detecting whether a preset image exists in the acquired image data;

Alternatively, the preset graphic may be a gesture image, or a user's head or eyes or face or leg moving image. The embodiment is exemplified by taking a preset image as a gesture image.

Optionally, in the process of detecting that the user triggers the photographing function to start image photographing through the image collecting device configured by the intelligent terminal, continuously detecting whether a gesture image exists in the image data collected by the image collecting device, so that once the intelligent terminal detects that the gesture image exists in the image data, the intelligent terminal immediately determines that the user needs to perform focal length adjustment on the image collecting device of the intelligent terminal through gesture operation at present, and therefore the intelligent terminal adjusts the focal length of the image collecting device according to the gesture image.

Optionally, in this embodiment, the gesture image in the image data detected by the intelligent terminal is gesture image data acquired by the image acquisition device when the user performs a gesture operation in front of the image acquisition device of the intelligent terminal. For example, after the photographing function of the intelligent terminal is started, if the intelligent terminal is far away from the user, and it is difficult for the user to perform the focal length adjustment by performing the touch operation on the photographing function interface as shown in fig. 4 output by the intelligent terminal through the finger, the user can perform the gesture operation that the whole hand slides up and down relative to the image acquisition device by drawing the five fingers together and straightening the palm bottom to face the image acquisition device (mobile phone camera) of the intelligent terminal, so that the intelligent terminal can determine the focal length of the image acquisition device that the user needs to remotely adjust currently after the gesture image is acquired by the image acquisition device when the user performs the gesture operation, and then the intelligent terminal starts to start the focal length switching function to perform the focal length adjustment according to the gesture corresponding performed by the user.

Optionally, step S10 includes:

Optionally, after detecting that the user triggers the photographing function to operate the image capturing device to start image capturing, the intelligent terminal immediately detects whether a gesture image exists in the image data captured by the image capturing device when the image capturing device is operated to capture image data for an environmental image of the environment in which the intelligent terminal is located by calling a preselected image recognition algorithm, and the gesture image is executed by the user to perform remote focus adjustment.

Optionally, based on different design requirements of practical application, among different feasible modes, the intelligent terminal can select and configure different image recognition algorithms in advance to detect the image data, and the focal length adjustment method is not limited to a specific type of the image recognition algorithm. In addition, in other possible embodiments, when the user performs gesture operation to perform remote focal length adjustment before the image capturing device of the intelligent terminal, the user may not need to draw the fingers together and/or place the bottom of the palm on the image capturing device, except that the fingers can be drawn together and then face the image capturing device with the bottom of the palm and slide up and down relative to the image capturing device. That is, the user only needs to slide up and down or slide left and right relative to the image acquisition device of the intelligent terminal through the hand, even other body parts and special objects held by the hand of the user, and the intelligent terminal can determine that the gesture image which is intended by the user to remotely adjust the focal length exists in the acquired image data of the image acquisition device through the image identification algorithm.

Optionally, step S20 includes the steps of:

Optionally, after detecting that the gesture image of which the user intends to remotely adjust the focal length exists in the image data acquired by the image acquisition device, the intelligent terminal can determine or generate, through an image processing technology, a motion track of the gesture image identifier when the user performs gesture operation. And then, the intelligent terminal can specifically increase or decrease the focal length of the image acquisition device which is currently performing image acquisition according to the motion trail.

Optionally, step S202 includes:

determining the direction of the motion trail;

if the direction of the motion track is consistent with the focal length increasing direction of the image acquisition device, increasing the focal length of the image acquisition device; and/or the number of the groups of groups,

Optionally, after determining or generating a motion track when the user performs the gesture operation in the image data acquired by the image acquisition device by invoking the image processing technology, the intelligent terminal may further determine a movement direction of the hand of the user relative to the image acquisition device when the user identified by the motion track performs the gesture operation, for example, when the user performs the gesture operation of sliding the hand upwards after gathering five fingers and facing the image acquisition device with the bottom of the palm, the intelligent terminal may determine, by using the image processing or image recognition technology, a motion track corresponding to the gesture operation performed by the user in the image data acquired by the image acquisition device, and the movement direction of the hand relative to the image acquisition device is upward.

Then, the intelligent terminal acquires the focal length increasing direction and the focal length decreasing direction of the image acquisition device currently shown on the photographing function interface as shown in fig. 4. Therefore, the intelligent terminal can detect the direction of the motion track of the gesture executed by the user, particularly, the direction of the gesture is consistent with the direction of the focal length increase and the direction of the focal length decrease of the image acquisition device, so that when the moving direction is consistent with the direction of the focal length increase, the intelligent terminal particularly adjusts the focal length of the image acquisition device to enable the image acquisition device to acquire the image data after the image acquisition device is amplified, or when the moving direction is consistent with the direction of the focal length decrease, the intelligent terminal particularly adjusts the focal length of the image acquisition device to enable the image acquisition device to acquire the image data after the image acquisition device is reduced.

Optionally, in some possible embodiments, the intelligent terminal may correspondingly increase or decrease the focal length of the image capturing device except when the movement track pointing direction of the gesture performed by the user is required to be consistent with the focal length increasing direction or the focal length decreasing direction of the image capturing device, and the intelligent terminal may of course correspondingly increase or decrease the focal length of the image capturing device when one of the direction components in the moving direction keeps consistent with the focal length increasing direction or the focal length decreasing direction.

In this embodiment, in the focal length adjustment method, in the process of detecting that a user triggers a photographing function to start image photographing through an image acquisition device configured by the intelligent terminal, whether a preset image exists in image data acquired through the image acquisition device is continuously detected. Therefore, once the intelligent terminal detects that the gesture image exists in the image data, the intelligent terminal immediately determines that a user needs to adjust the focal length of the image acquisition device of the intelligent terminal through gesture operation, and accordingly, the intelligent terminal adjusts the focal length of the image acquisition device according to the gesture image.

Therefore, the method and the device can enable the user to adjust the shooting focal length of the intelligent terminal through the gesture which is easy and convenient to operate before the image acquisition device of the intelligent terminal under the condition that the user is far away from the intelligent terminal to shoot images.

Second embodiment

Based on the first embodiment, a second embodiment is proposed, in this embodiment, step S202 includes the steps of:

determining a first spatial distance of a motion trail;

Optionally, in the process of specifically adjusting the focal length of the image acquisition device according to the motion track, the intelligent terminal determines or generates the first spatial distance of the motion track when the gesture operation is performed by the user through an image processing technology, for example, the intelligent terminal can calculate the first spatial distance of the motion track by combining the distance length of the motion track in the image data and the distance between the hand of the user and the image acquisition device. And then, the intelligent terminal further determines a second space distance between the shot object in the image data acquired by the image acquisition device and the image acquisition device.

In this way, after the second spatial distance exceeds the preset first distance threshold, the terminal device correspondingly increases or decreases the focal length according to the focal length adjustment range corresponding to the image acquisition device after amplifying the first spatial distance by a first multiple. Or after the second spatial distance exceeds a preset second distance threshold value which is larger than the preset first distance threshold value, the focal length adjusting range corresponding to the image acquisition device is enlarged by a second multiple (larger than the first multiple) according to the first spatial distance so as to correspondingly increase or decrease the focal length.

Optionally, in this embodiment, the preset first distance threshold and the preset second distance threshold are spatial distances between the object specifically set by the intelligent terminal based on actual use needs and the image acquisition device. In addition, the object in the image data collected by the image collecting device can be any environmental things, such as buildings, flowers and plants, mountains, rivers and the like, or can be a user or other people.

Optionally, assuming that the intelligent terminal presets a preset first distance threshold of 10 meters and a preset second distance threshold of 15 meters, the focal length of the image acquisition device of the intelligent terminal is adjusted to be-1 to 50 times. The intelligent terminal detects that the first space distance of the motion track is 10 cm when the user performs gesture operation, and in the image data currently being acquired by the image acquisition device, the second space distance between the intelligent terminal and the image acquisition device is between 10 and 15 meters, and the intelligent terminal adjusts the mapping relation of 1-time focal length of the image acquisition device by 1 cm correspondingly after amplifying the first space distance of 10 cm by 0.1 time, so as to adjust the current focal length of the image acquisition device by 1-time for the object to be shot. Or when the intelligent terminal detects that the first space distance of the motion track is 10 cm during gesture operation of a user, but in the image data currently acquired by the image acquisition device, the second space distance between the intelligent terminal and the image acquisition device exceeds 15 meters, the intelligent terminal correspondingly adjusts the mapping relation of the 1-time focal length of the image acquisition device by 1 cm after amplifying 1-time aiming at the first space distance of 10 cm, so as to adjust the current focal length of the image acquisition device aiming at the object to be shot, namely the person by 10 times.

In this embodiment, in the focal length adjustment method of the present application, in a process of specifically adjusting the focal length of the image acquisition device or adjusting the focal length of the image acquisition device according to a motion track of a gesture performed by a user, the spatial distance between a shot object in image data acquired by the image acquisition device and the image acquisition device is also considered at the same time, so that when the user adjusts the focal length of the image acquisition device in a long distance, if the spatial distance between the shot object and the image acquisition device is far, the user can adjust the focal length of the image acquisition device in a large range through a small-amplitude gesture operation.

Third embodiment

A third embodiment is proposed based on the first or second embodiment, as shown in fig. 5, in this embodiment, step S20 includes the steps of:

Optionally, after detecting that the gesture image of the user intention for remote focal length adjustment exists in the image data acquired by the image acquisition device, the intelligent terminal further determines whether the gesture image meets a preset focal length adjustment triggering condition; therefore, the intelligent terminal starts to remotely adjust the focal length of the image acquisition device according to the motion track of the gesture image only when detecting that the gesture image meets the focal length adjustment triggering condition.

Optionally, the preset focal length adjustment triggering condition of the intelligent terminal may be that when the user performs gesture operation, five fingers of the hand are gathered and the bottom of the palm slides up and down or left and right after facing the image acquisition device. Therefore, when the gesture image of the image acquisition device in the acquired image data when a user executes gesture operation is that the five fingers of the hands are gathered and the bottom of the palm faces the image acquisition device, and the whole hand slides up and down or left and right, the intelligent terminal can determine that the gesture image meets the focal length adjustment triggering condition.

Optionally, the step of determining whether the preset image meets the preset focus adjustment triggering condition may include:

determining a motion trail according to a preset image;

detecting whether the motion trail is consistent with a preset motion trail;

Optionally, when the gesture image existing in the image data acquired by the image acquisition device meets the above focal length adjustment condition, the intelligent terminal determines or generates, by an image processing technology, a motion track of a user identified by the gesture image when the user performs gesture operation. Then, the intelligent terminal detects whether the motion track is consistent with a preset motion track, the standard gesture track is that the hand is folded by five fingers, and the hand is slid up and down or left and right after the bottom of the palm faces the image acquisition device, so if the intelligent terminal detects that the motion track is consistent with the standard gesture track, the intelligent terminal can determine that the gesture image acquired by the image acquisition device meets the focal length adjustment condition when the user currently executes gesture operation in front of the image acquisition device, namely, the gesture image represents the intention of the user to remotely adjust the focal length of the image acquisition device based on gestures.

Optionally, step S40 includes:

Optionally, when the intelligent terminal detects that the gesture operation is performed before the image acquisition device by the user, the intelligent terminal may immediately start the focal length adjustment function of the image acquisition device after the gesture image acquired by the image acquisition device meets the focal length adjustment condition, and then correspondingly adjust the focal length of the image acquisition device by adjusting the focal length of the image acquisition device according to the motion trail as described in the first embodiment and the second embodiment.

For example, as shown in fig. 6, after the photographing function of the intelligent terminal is started, if the user performs a gesture operation of sliding the entire hand up and down with respect to the image acquisition device by drawing the five fingers straight and making the palm bottom face the image acquisition device of the intelligent terminal, after the intelligent terminal acquires the gesture image when the user performs the gesture operation through the image acquisition device, the focal length of the image acquisition device that the user needs to remotely adjust at present can be determined, and then, the intelligent terminal starts to start the function of switching focal lengths and outputs a function interface for performing focal length adjustment based on the gesture of the user on the photographing function interface as shown in fig. 7, and then, the intelligent terminal can correspondingly adjust or reduce the focal length of the image acquisition device according to the moving direction of the gesture performed by the user and/or the spatial distance between the object to be photographed and the image acquisition device in the image data.

In this embodiment, after detecting that the gesture image of the user intention to remotely adjust the focal length exists in the image data acquired by the image acquisition device, the intelligent terminal further determines whether the gesture image meets a preset focal length adjustment triggering condition; therefore, the intelligent terminal starts to remotely adjust the focal length of the image acquisition device according to the motion track of the gesture image only when detecting that the gesture image meets the focal length adjustment triggering condition. Therefore, the technical scheme can realize that the shooting focal length of the intelligent terminal can be adjusted by the gesture which is easy and convenient to operate before the image acquisition device of the intelligent terminal under the condition that the user is far away from the intelligent terminal for image shooting. The use experience of the intelligent terminal for image shooting by the user is effectively improved.

Fourth embodiment

The embodiment provides a focal length adjustment method, which can be applied to an intelligent terminal provided with an image acquisition device, and comprises the following steps:

s10: detecting whether a preset image exists in the acquired image data;

Optionally, step S20 includes the steps of:

Optionally, step S202 includes at least one of:

Optionally, the method further comprises at least one of:

determining the movement direction of the gesture movement track;

determining a first spatial distance of a motion trail;

The technical solution of the present embodiment and the corresponding implementation principles or steps may refer to the above embodiment, and will not be repeated here.

Through the technical scheme of the embodiment, the user can remotely adjust through the gesture focusing distance, and the shooting experience of the user is improved.

The application also provides an intelligent terminal, which comprises a memory and a processor, wherein the memory stores a focus adjustment program, and the focus adjustment program is executed by the processor to realize the steps of the focus adjustment method in any embodiment.

The present application further provides a storage medium, on which a focus adjustment program is stored, which when executed by a processor implements the steps of the focus adjustment method in any of the above embodiments.

The embodiments of the intelligent terminal and the storage medium provided in the present application may include all the technical features of any one of the embodiments of the focal length adjustment method, and the expansion and explanation contents of the description are substantially the same as those of each embodiment of the method, which are not repeated herein.

The present embodiments also provide a computer program product comprising computer program code which, when run on a computer, causes the computer to perform the method in the various possible implementations as above.

The embodiments also provide a chip including a memory for storing a computer program and a processor for calling and running the computer program from the memory, so that a device on which the chip is mounted performs the method in the above possible embodiments.

It can be understood that the above scenario is merely an example, and does not constitute a limitation on the application scenario of the technical solution provided in the embodiments of the present application, and the technical solution of the present application may also be applied to other scenarios. For example, as one of ordinary skill in the art can know, with the evolution of the system architecture and the appearance of new service scenarios, the technical solutions provided in the embodiments of the present application are equally applicable to similar technical problems.

The foregoing embodiment numbers of the present application are merely for describing, and do not represent advantages or disadvantages of the embodiments.

The steps in the method of the embodiment of the application can be sequentially adjusted, combined and deleted according to actual needs.

The units in the device of the embodiment of the application can be combined, divided and pruned according to actual needs.

In this application, the same or similar term concept, technical solution, and/or application scenario description will generally be described in detail only when first appearing, and when repeated later, for brevity, will not generally be repeated, and when understanding the content of the technical solution of the present application, etc., reference may be made to the previous related detailed description thereof for the same or similar term concept, technical solution, and/or application scenario description, etc., which are not described in detail later.

In this application, the descriptions of the embodiments are focused on, and the details or descriptions of one embodiment may be found in the related descriptions of other embodiments.

The technical features of the technical solutions of the present application may be arbitrarily combined, and for brevity of description, all possible combinations of the technical features in the above embodiments are not described, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the present application.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) as above, including several instructions for causing a terminal device (which may be a mobile phone, a computer, a server, a controlled terminal, or a network device, etc.) to perform the method of each embodiment of the present application.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions in accordance with embodiments of the present application are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable devices. The computer instructions may be stored in a storage medium or transmitted from one storage medium to another storage medium, for example, from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line), or wireless (e.g., infrared, wireless, microwave, etc.) means. The storage media may be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that contains an integration of one or more available media. Usable media may be magnetic media (e.g., floppy disks, storage disks, magnetic tape), optical media (e.g., DVD), or semiconductor media (e.g., solid State Disk (SSD)), among others.

The foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the scope of the claims, and all equivalent structures or equivalent processes using the descriptions and drawings of the present application, or direct or indirect application in other related technical fields are included in the scope of the claims of the present application.

Claims

1. The focal length adjusting method is characterized by being applied to an intelligent terminal provided with an image acquisition device and comprising the following steps of:

s10: detecting whether a preset image exists in the acquired image data;

2. The method of claim 1, wherein step S10 comprises:

3. The method of claim 2, wherein step S20 comprises the steps of:

4. A method according to claim 3, characterized in that step S202 comprises at least one of the following:

5. The method of claim 4, further comprising at least one of:

determining the movement direction of the gesture movement track;

determining a first spatial distance of a motion trail;

6. The method according to any one of claims 1 to 5, wherein said adjusting the focal length of the image capturing device according to a preset image comprises:

7. The method of claim 6, wherein the preset image meets a focus adjustment trigger condition, comprising:

8. The method of claim 6, wherein adjusting the focal length of the image capture device based on the preset image comprises:

9. An intelligent terminal, characterized by comprising: memory, a processor, wherein the memory has stored thereon a focus adjustment program which, when executed by the processor, implements the steps of the focus adjustment method according to any one of claims 1 to 8.

10. A storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the focus adjustment method according to any one of claims 1 to 8.