TWI549067B - Portable electronic device and image capturing method - Google Patents

Description

Portable electronic device and image capturing method

The present invention relates to an image capturing method, and more particularly to a portable electronic device and an image capturing method that can determine whether a target scene is a text-like scene and determine a resolution of the captured image according to the determination result.

With the advancement of technology, portable electronic devices, such as smart phones, tablets, and the like, have become more and more popular. Users often use the built-in image capture device of the portable electronic device to take photos. When the image capture device is enabled, the photo is taken at a preset resolution. In general, the user will preset a higher resolution to obtain a clearer image. Regardless of the target scene, shooting is performed at a preset high resolution. However, high-resolution images use a large storage space in the memory device. In addition, in the case of a scene such as a document, in general, it is only necessary to be able to distinguish the characters therein, and therefore it is not necessary to take a picture with high resolution. If the file is still shot at high resolution, the storage space is wasted. If you want to shoot different target scenes (such as people, landscapes, files, etc.) with different resolutions, the user must manually adjust the resolution separately before shooting, thereby saving storage space, but this individual manual adjustment pair It is quite inconvenient for the user.

Therefore, the present invention provides a shadow for a portable electronic device Like the capture method, it can automatically determine whether the target scene is a text-like scene and determine the resolution of the captured image according to the judgment result, thereby saving storage space.

The invention provides an image capturing method for an electronic device. The method includes the following steps: when the electronic device is in a specific mode, the image capturing device of the electronic device is activated to obtain a preview image of a target scene; and the preview image is used to determine whether the target scene is a text-like scene; When the target scene is not a text-like scene, the image capturing device is configured to have a first resolution; and the image capturing device performs an image capturing operation on the target scene by using the first resolution to obtain a first image; When it is determined that the target scene is a text-like scene, the image capturing device is configured to have a second resolution, wherein the second resolution is lower than the first resolution; and the image is captured by the image capturing device with the second resolution The scene performs an image capturing operation to obtain a second image.

The invention further provides a portable electronic device, which comprises an image capturing device and a processor. When the portable electronic device is in a specific mode, the image capturing device is activated to obtain a preview image of a target scene. The processor performs the following steps in the specific mode: determining whether the target scene is a text-like scene according to the preview image; and determining that the target scene is not a text-like scene, setting the image capturing device to have a first resolution; The capturing device performs an image capturing operation on the target scene with a first resolution to obtain a first image; and when determining that the target scene is a text-like scene, setting the image capturing device to have a second resolution, wherein The second resolution is lower than the first resolution. And performing an image capturing operation on the target scene by using the image capturing device to obtain a second image.

100‧‧‧Portable electronic devices

110‧‧‧ processor

112‧‧‧ memory controller

115‧‧‧ peripheral interface

116‧‧‧Integrated circuit

120‧‧‧ memory unit

121‧‧‧Image data

122‧‧‧Operating system

124‧‧‧Communication Module

125‧‧‧ display module

126‧‧‧Contact Action Module

128‧‧‧Graphics module

130‧‧‧Application

131‧‧‧ keyboard module

140‧‧‧ touch screen

150‧‧‧Wireless transmission circuit

155‧‧‧Antenna

160‧‧‧Image capture device

170‧‧‧ storage unit

200, 400, 500, 600‧‧‧ image acquisition methods

300, 310‧‧‧ storage space

S201-S213‧‧‧Steps

S401-S406‧‧‧Steps

S501-S504‧‧‧Steps

S601-S604‧‧‧Steps

1 is a functional block diagram of a portable electronic device in accordance with an embodiment of the present invention.

FIG. 2 shows an image capturing method according to an embodiment of the present invention.

FIG. 3 is a schematic diagram showing the connection between the portable electronic device and the external storage space according to an embodiment of the invention.

4A-4B illustrate an image capture method in accordance with another embodiment of the present invention.

5A-5B are diagrams showing an image capturing method according to still another embodiment of the present invention.

6A-6B illustrate an image capture method in accordance with an embodiment of the present invention.

The above described objects, features and advantages of the present invention will become more apparent from the description of the appended claims.

1 is a functional block diagram of a portable electronic device 100 in accordance with an embodiment of the present invention. The portable electronic device 100 mainly includes a processor 110, a memory unit 120, a touch screen 140, a wireless transmission circuit 150, an image capturing device 160, and a storage unit 171. In an embodiment, the portable electronic device 100 can be a mobile phone, a smart phone, or a tablet computer. Processor 110 can be one or more processors, image processors, and/or central processing units that can be used to execute one or more types of computer readable media stored in memory unit 120. The processor 110 is coupled to the touch screen 140, the wireless transmission circuit 150, and the image capturing device 160 via a peripheral interface 115, as shown in FIG.

The wireless transmission circuit 150 can be a radio frequency coupled to one or more antennas 155 and can be used to connect the portable electronic device 100 to one or more additional devices, computers, And / or the server to communicate. The portable electronic device 100 can support various communication protocols, such as CDMA, GSM, EDGE, HSDPA, Wifi (such as IEEE 802.11a/b/g/n), Bluetooth, Wi-MAX, email protocol, instant messaging (instant messaging). And/or a short message service (SMS), but the invention is not limited thereto. In another embodiment, the wireless transmission circuit 150 can be an infrared transmission circuit, and in this embodiment, the antenna 155 need not be configured.

The image capture device 160 captures at least one image of the external scene of the portable electronic device 100, and transmits the sensing signal obtained after the captured image is transmitted to the memory unit 120 through the peripheral interface 115 for temporary storage (ie, image). Information 121). When the processor 110 needs to process the captured image, the processor 110 reads the sensing signal from the memory 120 through the memory controller 112. The peripheral interface 115 can be connected to the image capturing device 160 in a wired or wireless manner. In the embodiment of FIG. 1 , the image capturing device 160 is a camera device built in the portable electronic device 100 , including a lens, a sensing component, a sensing signal generator, and the like. In another embodiment, the image capturing device 160 can be a camera device that is independent of the portable electronic device 100 and that connects the portable electronic device 100 in a wired or wireless manner. In still another embodiment, the image capturing device 160 is a camera device implemented on another electronic device and connected to the portable electronic device 100 in a wired or wireless manner.

The touch screen 140 can detect any contact or any movement or stop action by any currently known or later developed touch detection technology, including but not limited to capacitive, Resistive Resistive, infrared, surface acoustic wave technology, and other proximity sensor arrays or other components that can be used to determine a plurality of contact points by touch screen 140. However, the touch screen 140 can display the video output from the portable electronic device 100. For example, the instant scene preview image obtained by the image capturing device 160 can be viewed through the touch screen 140, or the image captured by the image capturing device 160 can be viewed through the touch screen 140. In some embodiments, the portable electronic device 100 can include one of the circuits supporting the position determining function, such as a Global Positioning System.

The memory controller 112 is coupled to the memory unit 120, wherein the memory unit 120 includes one or more types of computer-storable media. The memory unit 120 can include high speed random access memory (eg, SRAM or DRAM), and/or non-volatile memory, such as one or more disk storage devices, one or more optical storage devices, and/or fast Flash memory. The memory unit 120 stores an operating system 122, such as LINUX, UNIX, OS X, Windows, or an embedded operating system, such as VxWorks. Operating system 122 includes a plurality of programs for processing basic system services and performing hardware dependent tasks. The memory unit 120 can further store the communication program in a communication module 124. The communication program is for communicating with one or more additional devices, one or more computers, and/or one or more servers. The memory unit 120 further includes a display module 125, a contact action module 126, and a graphics module 128. The contact action module 126 is used to determine one or more contact points and/or their movement actions. The graphics module 128 supports an interface tool set (widget), which means a module or application with embedded graphics. The interface toolset is available in JavaScipt, HTML, Adobe Flash or other suitable computer programming language or technology to achieve. In some embodiments, the processor 110, the memory controller 112, and/or the peripheral interface 115 may be individual components, or may be integrated into an integrated circuit 116. When the image capturing device 160 performs an image capturing operation, the image generated after capturing the image is temporarily stored in the memory unit 120. When the processor 110 issues an instruction to store the image, the image temporarily stored in the memory unit 120 is transmitted to the storage unit 170 through the memory controller 112 and the peripheral interface 115 for storage. The storage unit 170 can be part of the portable electronic device 100 or an external device of the portable electronic device 100. The storage unit 170 can connect the peripheral interface 115 in a wired or wireless manner. The storage unit 170 may be a storage device such as a hard disk or a memory card.

The memory component 120 can further include one or more applications 130. For example, the application stored in the memory unit 120 may include a phone application, an email application, a text message or instant messaging application, a notebook application, an address book or a contact list, a calendar, and an image file. Access to image management applications, music playback and music management applications. The application 130 can include a web browser (not shown in FIG. 1) for depicting pages written in HTML, WML, or other language that can be composed into web pages or other online languages. The memory unit 120 further includes a keyboard module (or an instruction set) 131 for operating one or more software keyboards.

It should be noted that each of the above modules and each application system is associated with an instruction set for operating one or more functions as in the foregoing embodiments. These modules (ie, instruction sets) do not have to be implemented in different software programs, programs, or modules. Different modules or sub-modules can be rearranged and/or merged. Portable electronic device The various functions in 100 may be implemented in hardware and/or software, which may include one or more signal processing and/or application specific integrated circuits (ASICs).

2 is a diagram showing an image capturing method according to an embodiment of the present invention. The image capturing method 200 will be described below in conjunction with FIGS. 1 and 2. When the processor 110 loads the image capturing application 130 from the memory component 120 (step S201), the processor 110 determines whether the current remaining storage space of the storage unit 170 is smaller than a predetermined space (step S202). If the processor 110 determines that the current storage space of the storage unit 170 is not less than the predetermined space, the portable electronic device 100 enters a preset mode to perform an image capturing operation, that is, performing image capturing on the target scene (step S203). . When the image capturing operation is performed by the portable electronic device 100 in the preset mode, the processor 110 activates the image capturing device 160. At this time, the image capturing device 160 performs image scanning on the target scene with a preset resolution. The operation is taken (step S204). In this embodiment, the preset resolution is the resolution set by the portable electronic device 100 at the time of shipment, or the resolution set recently. In other words, in the preset mode, the resolution will not be adjusted or changed. When the image capturing device 160 performs an image capturing operation, the captured image is temporarily stored in the memory unit 120 (ie, the image data 121). In some cases, for example, when the storage command is received, the processor 110 transmits the image temporarily stored in the memory unit 120 to the storage unit 170 through the memory controller 112 and the peripheral interface 115 for storage.

If the processor 110 determines that the current remaining storage space of the image storage unit 121 is smaller than the predetermined space, the portable electronic device 100 enters a specific mode to perform an image capturing operation (step S205). In a specific mode, processing The device 110 activates the image capturing device 160 to obtain a preview image of the target scene (step S206). This preview screen can be displayed on the touch screen 140. After obtaining the preview picture, the processor 110 determines whether the target scene is a character-like scene based on the preview screen (step S207). The text-type scenes described in this specification refer to scenes mainly composed of words, such as scenes including text notes, scenes including book texts, and the like. A non-textual scene refers to a scene mainly composed of a person or a landscape, such as a scene including at least one character, a scene including a mountain, a river, and/or a plant, and the like.

When the processor 110 determines that the target scene is not a character-like scene, the processor 110 sets the resolution of the image capturing device 160 to perform an image capturing operation through the peripheral interface 115, and sets the resolution to have a first value. (Step S208). Thereafter, the image capturing device 160 performs an image capturing operation with a resolution having a first value to obtain an image of the target scene (step S209). The obtained image is temporarily stored in the memory unit 120 (ie, the image data 121). In some cases, for example, when the storage instruction is received, the processor 110 transmits the image stored in the memory unit 120 to the storage unit 170 through the memory controller 112 and the peripheral interface 115 for storage, or through the peripheral device 115, wireless. The transmission circuit 150 and the antenna 155 transmit the image stored in the memory unit 120 to a storage space 300/310 (see FIG. 3) outside the portable electronic device 100, for example, a cloud storage space (step S210). In some embodiments, the processor 110 can simultaneously transfer images stored in the memory unit 120 to the storage unit 170 and the storage space 300/310 for storage.

When the processor 110 determines that the target scene is a text-like scene, the processor 110 sets the image capturing device 160 to execute the image through the peripheral interface 115. The resolution at the time of the operation is extracted, and it is set to have the resolution of the second numerical value (step S211). Thereafter, the image capturing device 160 performs an image capturing operation with a resolution having a second value to obtain an image of the target scene (step S212). In this embodiment, S207, the second value is less than the first value. In other words, the resolution with the second value is lower than the resolution with the first value. The obtained image is temporarily stored in the memory unit 120 (ie, the image data 121). In some cases, for example, when the storage instruction is received, the processor 110 transmits the image stored in the memory unit 120 to the storage unit 170 through the memory controller 112 and the peripheral interface 115 for storage, or through the peripheral device 115, wireless. The transmission circuit 150 and the antenna 155 transmit the image stored in the memory unit 120 to a storage space 300/310 (see FIG. 3) outside the portable electronic device 100, for example, a cloud storage space (step S213). In some embodiments, the processor 110 can simultaneously transfer images stored in the memory unit 120 to the storage unit 170 and the storage space 300/310 for storage. In this embodiment, the storage spaces 300 and 310 belong to different cloud storages, or belong to different spaces in the same cloud storage.

According to the above, when the remaining storage space of the storage unit 170 is insufficient, the portable electronic device 100 enters a specific mode, and the resolution of the image capturing device 160 is selectively set by determining whether the target scene is a character-like scene. . In this way, the image capturing device 160 can capture the image of the text-like scene with a lower resolution, and capture the image of the non-text-like scene with a higher resolution, thereby remaining the storage unit 170. Space can be used effectively. Therefore, the specific mode is a saving mode that can effectively utilize the storage space. Furthermore, in the preset mode, the image obtained by performing the image capturing operation can be transmitted to the external storage. The storage space 300/310 is stored, thereby avoiding the use of the remaining space in the image storage unit 121 that is insufficient.

4A-4B is a diagram showing an image capturing method according to another embodiment of the present invention. The image capturing method 400 of FIG. 4A-4B is substantially the same as the image capturing method 200 of FIG. 2, except that the step after the target scene is determined to be a character-like scene is determined. In the following, the same steps in the 2nd and 4A-4B drawings will not be described again. Referring to FIGS. 4A-4B, when the processor 110 determines that the target scene is a text-like scene, the processor 110 then determines whether at least one of the characters in the preview screen is greater than a predetermined size (step S401). When the processor 110 determines that the at least one character is not larger than a predetermined size, this means that a smaller text is presented in the preview screen. At this time, the processor 110 sets the resolution when the image capturing device 160 performs the image capturing operation through the peripheral interface 115, and sets the resolution to have the third numerical value (step S402). Thereafter, the image capturing device 160 performs an image capturing operation with a resolution having a third value to obtain an image of the target scene (step S403). The obtained image is temporarily stored in the memory unit 120 (ie, the image data 121). In some cases, for example, when the storage instruction is received, the processor 110 transmits the image stored in the memory unit 120 to the storage unit 170 through the memory controller 112 and the peripheral interface 115 for storage, or through the peripheral device 115, wireless. The transmission circuit 150 and the antenna 155 transfer the image stored in the memory unit 120 to the storage space 300/310 (see FIG. 3) outside the portable electronic device 100, for example, a cloud storage space (step S404). In some embodiments, the processor 110 can simultaneously transfer images stored in the memory unit 120 to the storage unit 170 and the storage space 300/310 for storage.

When the processor 110 determines that the at least one character is greater than the predetermined size Inch, this means that larger text is presented in the preview. At this time, the processor 110 sets the resolution when the image capturing device 160 performs the image capturing operation through the peripheral interface 115, and sets the resolution to have the fourth numerical value (step S405). Thereafter, the image capturing device 160 performs an image capturing operation with a resolution having a fourth value to obtain an image of the target scene (step S406). In this embodiment, the fourth value is less than the third value and the third value is less than the first value. In other words, the resolution having the fourth value is lower than the resolution having the third value, and the resolution having the third value is lower than the resolution having the first value. Thereafter, the image capturing method 400 performs step S404 of image storage to store the image obtained in step S406 in the storage unit 170 and/or the cloud space 300/310.

According to the above, in the embodiment of FIG. 4A-4B, when the remaining storage space of the image storage unit 121 is insufficient, the resolution of the image capturing device 160 is selectively set according to whether the target scene is a text-like scene. In the case where the target scene is a character-like scene, the resolution of the image capturing device 160 is further selectively set according to the size of the text in the target scene.

5A-5B illustrate an image capture method 500 in accordance with yet another embodiment of the present invention. The image capturing method 500 of FIGS. 5A-5B is substantially the same as the image capturing method 200 of FIG. 2, except that the image capturing method 500 further describes the details of step S207 in FIG. In the following, the same steps in FIG. 2 and FIG. 5A-5B will not be described again. Referring to FIGS. 5A-5B, after the processor 110 activates the image capturing device 160 to obtain a preview screen of the target scene (step S206), the processor 110 checks whether there is at least one character in the preview screen (step S501). When the processor 110 checks that the preview picture does not have at least one text The word processor determines that the target scene is not a character-like scene (step S502). Thereafter, the image capturing method 500 proceeds from step S502 to step S208.

When the processor 110 detects that the preview image has at least one character, the processor 110 determines whether a occupied space of the at least one text in the preview image is greater than a preset screen space (step S503). When the processor 110 determines that the occupied space of the at least one character is not greater than the preset picture space, the processor 110 determines that the target scene is not a text-like scene (step S502). Thereafter, the image capturing method 500 proceeds from step S502 to step S208. When the processor 110 determines that the occupied space of the at least one character is greater than the preset picture space, the processor 110 determines that the target scene is a text-like scene (step S504). Thereafter, the image capturing method 500 proceeds from step S504 to step S211.

6A-6B are diagrams showing an image capture method 600 in accordance with another embodiment of the present invention. The image capturing method 600 of FIGS. 6A-6B is substantially the same as the image capturing method 400 of FIG. 4A-4B, except that the image capturing method 600 further describes the details of step S207 in FIG. 4A-4B. content. Hereinafter, the same steps in FIGS. 4A-4B and 6A-6B will not be described again. Referring to FIGS. 6A-6B, after the processor 110 starts the image capturing device 160 to obtain a preview screen of the target scene (step S206), the processor 110 checks whether there is at least one character in the preview screen (step S601). When the processor 110 checks that the preview picture does not have at least one character, the processor 110 determines that the target scene is not a character-like scene (step S602). Thereafter, the image capturing method 600 proceeds from step S502 to step S208.

When the processor 110 checks that the preview image has at least one character, the processor 110 determines that the at least one text is occupied in the preview image. Whether it is greater than a predetermined screen space (step S603). When the processor 110 determines that the occupied space of the at least one character is not greater than the preset screen space, the processor 110 determines that the target scene is not a text-like scene (step S602). Thereafter, the image capturing method 600 proceeds from step S602 to step S208. When the processor 110 determines that the occupied space of the at least one character is greater than the preset picture space, the processor 110 determines that the target scene is a text-like scene (step S604). Thereafter, the image capturing method 600 proceeds from step S604 to step S401.

According to the above, in step S601, it is checked whether or not the at least one character in the preview screen is a rough determination as to whether or not the target scene is a character-like scene. In step S603, when there is at least one character in the preview screen, it can be accurately determined whether the target scene is a text-like scene by determining whether the at least one character occupies a large space in the preview image. In this way, even if a character in a target scene wears clothes with text or has a background of the character, the target scene is not misjudged as a text scene.

The present invention has been disclosed in the above preferred embodiments, and is not intended to limit the scope of the present invention. Any one of ordinary skill in the art can make a few changes without departing from the spirit and scope of the invention. The scope of protection of the present invention is therefore defined by the scope of the appended claims.

200‧‧‧Image acquisition method

S201-S2013‧‧‧Steps

Claims (14)

An image capturing method for an electronic device, the method comprising: when the electronic device is in a specific mode, starting an image capturing device of the electronic device to obtain a preview image of a target scene; according to the preview The image is used to determine whether the target scene is a text-like scene. When it is determined that the target scene is not the text-like scene, the image capturing device is set to have a first resolution; and the first image is captured by the image capturing device. And performing an image capturing operation on the target scene to obtain a first image; and when determining that the target scene is the text type scene, setting the image capturing device to have a second resolution, wherein The second resolution is lower than the first resolution; and the image capturing device performs the image capturing operation on the target scene by using the second resolution to obtain a second image. The image capturing method of claim 1, wherein when the target scene is determined to be the character-type scene, the step of setting the image capturing device to have the second resolution comprises: when determining When the target scene is the text-based scene, determining whether at least one character in the preview image is greater than a predetermined size; and determining that the at least one character in the preview image is not greater than the predetermined size, setting the second resolution to have a a first value; and when it is determined that the at least one character in the preview facet is larger than the predetermined size, the second resolution is set to have a second value, wherein the second resolution having the first value is higher than the The second resolution of the second value. The image capturing method of claim 1, wherein the step of determining whether the target scene is the text-type scene according to the preview screen comprises: checking whether the preview image has at least one character; The preview screen does not have the at least one character, and determines that the target scene is not the text type scene; when it is checked that the preview screen has the at least one text, it is determined whether a occupied space of the at least one text in the preview screen is greater than a preset screen. a space; determining that the occupied space of the at least one character is not greater than the preset picture space, determining that the target scene is not the text type scene; and determining that the occupied space of the at least one text is greater than the preset picture space, determining the The target scene is the text type scene. The image capturing method of claim 3, wherein when the target scene is determined to be the text-type scene, the step of setting the image capturing device to have the second resolution comprises: when determining When the target scene is the text type scene, determining whether the at least one character is greater than a predetermined size; and determining that the at least one character is not greater than the predetermined size, setting the second resolution to have a first value; and when determining the at least A text is greater than the predetermined size, and the second resolution is set to have a second value, wherein the second resolution having the first value is higher than the second resolution having the second value. The image capturing method of claim 1, further comprising: when determining that the target scene is not the text type scene, the first image The second image is stored in a second storage space when it is determined that the target scene is the text type scene. The image capturing method of claim 1, further comprising: determining whether a remaining storage space of a storage unit connected to the electronic device is smaller than a predetermined space; and determining the remaining storage space of the storage unit Less than the predetermined space, the electronic device enters the specific mode. The image capturing method of claim 6, further comprising: when determining that the remaining storage space of the storage unit is not less than the predetermined space, causing the electronic device to enter a preset mode; and when the electronic device In the preset mode, the image capturing device is activated, and the image capturing operation is performed on the target scene with a preset resolution to obtain a third image. A portable electronic device includes: an image capturing device, wherein when the portable electronic device is in a specific mode, the image capturing device is activated to obtain a preview image of a target scene; and a processor For performing the following steps in the specific mode: determining whether the target scene is a text type scene according to the preview image; and determining that the target scene is not the text type scene, setting the image capturing device to have a first a resolution; the image capturing device performs an image capturing operation on the target scene by using the first resolution to obtain a first image; When it is determined that the target scene is the text type scene, the image capturing device is configured to have a second resolution, wherein the second resolution is lower than the first resolution; and the image capturing device is configured to The second resolution is to perform the image capturing operation on the target scene to obtain a second image. The portable electronic device of claim 8, wherein when the processor determines that the target scene is the text-type scene, the processor further performs the step of: determining at least the preview image Whether a text is greater than a predetermined size; when it is determined that the at least one character in the preview image is not greater than the predetermined size, setting the second resolution to have a first value; and determining that the at least one text in the preview facet is greater than For the predetermined size, the second resolution is set to have a second value, wherein the second resolution having the first value is higher than the second resolution having the second value. The portable electronic device of claim 8, wherein the processor further performs the following steps: checking whether the preview picture has at least one character; and determining that the preview picture does not have the at least one character, determining The target scene is not the text type scene; and when it is checked that the preview screen has the at least one text, it is determined whether a occupied space of the at least one text in the preview image is greater than a preset screen space; when the at least one text is determined The occupied space is not greater than the preset picture space, and the target scene is determined not to be the text type scene; and when the occupied space of the at least one text is determined to be greater than the preset picture space In the meantime, it is determined that the target scene is the text type scene. The portable electronic device of claim 10, wherein when the processor determines that the target scene is the text-type scene, the processor further performs the step of: determining whether the at least one text is greater than a predetermined Dimensions; when it is determined that the at least one character is not greater than the predetermined size, setting the second resolution to have a first value; and when determining that the at least one character is greater than the predetermined size, setting the second resolution to have a second value, The second resolution having the first value is higher than the second resolution having the second value. The portable electronic device of claim 8, further comprising: a transmission circuit coupled to the processor; wherein, when the processor determines that the target scene is not the text type scene, the processor And storing, by the transmission circuit, the first image to a first external storage space; and wherein, when the processor determines that the target scene is the text-type scene, the processor stores the second image through the transmission circuit To a second external storage space. The portable electronic device of claim 8, wherein the processor determines whether a remaining storage space of a storage unit connected to the portable electronic device is smaller than a predetermined space; and wherein, when the processing The device determines that the remaining storage space of the storage unit is smaller than the predetermined space, and the processor causes the electronic device to enter the specific mode. The portable electronic device of claim 13, further comprising: wherein, when the processor determines that the remaining storage space of the storage unit is not less than the predetermined space, the processor causes the electronic device to enter a a preset mode; and wherein, in the preset mode, the processor performs the following steps: starting the image capturing device, and performing the image capturing operation on the target scene with a preset resolution to obtain a The third image.