TW201338518A - Method for capturing image and image capture apparatus thereof - Google Patents

Abstract

A method for capturing image and an image capture apparatus using the same are provided. In the method, location information of the image capture apparatus is positioned and a sample image corresponding to the location information is obtained from an image database. And a plurality of parameters of the sample image are applied to the image capture apparatus for capturing an image according to the parameters. Accordingly, professional photos could be taken.

Description

Capture image method and image capture device

The invention relates to an image capturing mechanism, and in particular to a method for capturing images by an expert shooting and an image capturing device.

With the development of technology, various image capturing devices such as cameras and cameras have played an indispensable role in life. Whether in daily life or in the working environment, the image capturing device plays a role in its function. Since the market is full of various image capturing devices, the function of the image capturing device has become one of the considerations of the user at the time of purchase.

General photography uses the Auto Exposure (AE) function to perform exposure calculations to achieve the desired brightness of the overall image. In general, the primary flash intensity of a digital camera is estimated based on the pre-flash image. In order to make the estimation of the main flash intensity more closely in close-up, the conventional method is as follows: when the user switches the close-up mode, the digital camera reduces the pre-flash intensity to make the main flash estimation accurate, or the digital camera is based on The information of Auto Focus (AF) is used to determine whether it is close-range shooting, so as to switch the aperture to reduce the amount of incoming light, and then estimate the accurate main flash intensity.

However, when taking pictures with the camera, the user may not be able to take the desired picture without the skill of taking pictures. For example, if the user does not switch to the close-up mode and shoots a close-up image, the main flash estimation is often inaccurate and the over-exposed image is obtained. In addition, when the autofocus estimation is inaccurate, it will cause an error in switching the aperture time. If it is a distant object, it will also cause the main flash estimation to be inaccurate, which may cause a vignetting problem.

The invention provides a method for capturing an image and an image capturing device, which can make a captured image have a shooting effect like the photo sample according to a photo sample.

The invention provides a method for capturing images, which is suitable for an image capturing device. In the method, the location information of the image capturing device is located, and the image reference sample conforming to the location information is obtained from the image database. Moreover, multiple parameters of the image reference sample are applied to the image capturing device to capture images according to the parameters.

In an embodiment of the present invention, the step of obtaining an image reference sample conforming to the location information from the image database may be connected to the image database through the Internet.

In an embodiment of the invention, the image database is built in the image capturing device.

In an embodiment of the present invention, in the step of obtaining the image reference sample corresponding to the location information in the self-image database, multiple photos matching the location information may be obtained from the image database to filter out the matching in the photo. A photo of the model of the image capture device. And, one of the selected photos is selected as an image reference sample.

In an embodiment of the invention, the parameters include at least one of a pixel, a sensitivity, an exposure time, an aperture, and a focal length, or a combination thereof.

In an embodiment of the present invention, after the step of obtaining an image reference sample conforming to the location information from the image database, the composition information of the image reference sample may be prompted in the display unit. The composition information is, for example, the orientation information or the contour information of the subject in the image reference sample, or the transparent image sample obtained by the transparent image reference sample.

In an embodiment of the present invention, after the step of capturing an image according to the above parameters, the captured image may be stored in the image database.

The invention provides an image capturing device, which comprises an image sensing unit, a positioning unit and a processing unit. The positioning unit is used to locate the location information of the image capturing device. The processing unit is coupled to the positioning unit and the image sensing unit for acquiring the image reference sample corresponding to the position information from the image database, and applying the plurality of parameters of the image reference sample to the image sensing unit, so that the image sensing unit Capture images based on the above parameters.

In an embodiment of the invention, the image capturing device further includes a connection unit for connecting to the image database through an internet connection.

In an embodiment of the invention, the image capturing device further includes a storage unit for storing the image database.

In an embodiment of the present invention, the processing unit may further obtain a plurality of photos conforming to the location information from the image database, and select photos corresponding to the model of the image capturing device in the photos, and the self-screened photos Select one of them as the image reference sample.

In an embodiment of the invention, the image capturing device further includes a display unit for prompting the composition information of the image reference sample. The composition information is the orientation information or contour information of the subject in the image reference sample, or the transparent image sample obtained by the transparent image reference sample.

In an embodiment of the invention, the processing unit may further store the captured image into the image database.

Based on the above, by the location information of the image capturing device, the image capturing device can obtain an image reference sample that matches the location information from the image database according to the location information. The image capturing device can then apply multiple parameters of the image reference sample and capture images according to multiple parameters of the image reference sample. In this way, the user does not need to adjust the parameters of the image capturing device by himself, but can capture the shooting effect in the image reference sample, and then take a professional photo.

The above described features and advantages of the present invention will be more apparent from the following description.

FIG. 1 is a block diagram of an image capture device according to an embodiment of the invention. Referring to FIG. 1 , the image capturing device 100 of the present embodiment is, for example, a digital camera, a digital monocular camera, or a mobile phone with an image capturing function, a smart phone, a notebook computer, a tablet computer, etc., and is not limited to the above. The image capturing device 100 includes an image sensing unit 110, a positioning unit 120, and a processing unit 130. In addition, the image capturing device 100 further includes a connecting unit 140, a storage unit 150, and a display unit 160. The processing unit 130 is coupled to the image sensing unit 110, the positioning unit 120, the connection unit 140, the storage unit 150, and the display unit 160, respectively.

The image sensing unit 110 is configured to capture an image. For example, the image sensing unit 110 may include a lens, a photosensitive element, an aperture, and the like, but is not limited thereto. The lens is, for example, a standard lens, a wide-angle lens, a zoom lens, or the like. The photosensitive element is, for example, a Charge Coupled Device (CCD), a Complementary Metal-Oxide Semiconductor (CMOS) element, or other elements. The aperture refers to a group of blades that can be moved in the lens. By controlling the size of the blade opening and closing, it is possible to control the amount of light entering the image sensing unit 110 within a certain period of time. This is for illustrative purposes only and is not intended to be limiting.

The positioning unit 120 is used to locate the location information of the image capturing device 100. The location information indicates the current location of the image capturing device 100, such as the latitude and longitude of the location of the image capturing device 100. The positioning unit 120 may be a Global Positioning System (GPS) chip to process satellite positioning signals. The positioning unit 120 can continuously receive the satellite positioning signal transmitted by the satellite and convert it into positioning data, thereby marking the geographical location represented by the positioning data on the map. In this way, the positioning unit 120 can automatically locate the current location of the image capturing device 100 as the current location information.

The processing unit 130 is, for example, a central processing unit (CPU), or other programmable microprocessor (Microprocessor), a digital signal processor (DSP), a programmable controller, and a special application. Application Specific Integrated Circuits (ASICs), Programmable Logic Devices (PLDs), or the like. Specifically, the processing unit 130 can obtain the image reference sample corresponding to the location information from an image database, and apply the plurality of parameters of the image reference sample to the image sensing unit 110, so that the image sensing unit 110 can be configured according to the parameter. Take the image. Further, the processing unit 130 may take out a plurality of photos that match the location information from the image database, and select one of the photos as the image reference sample. In addition, the processing unit 130 may also store the image captured by the image capturing device 100 to the image database to increase the number of photos as a basis for selecting subsequent image reference samples.

Here, the image database also records the parameters of each photo. The above parameters are, for example, at least one of a pixel, a sensitivity, an exposure time, an aperture, and a focal length, or a combination thereof. These parameters are stored, for example, in the Exchangeable Image File Format (EXIF) of each photo. In addition, the image database can be built on the remote device and/or built into the image capture device 100.

The connection unit 140 is, for example, a network card or a WiFi (Wireless Fidelity) protocol chip, but is not limited thereto. The processing unit 130 can be connected to the image database in the remote device (not shown) through the Internet through the connection unit 140. Here, the remote device is, for example, a cloud service platform.

It is worth mentioning that when the image data inventory is placed on the cloud service platform, the photos in it can be from different image capturing devices, and the image database can be updated regularly. In other words, images captured by the same or different image capturing devices can be stored in the image database as image reference samples. In this way, the processing unit 130 can obtain multiple photos from the image database by using the connection unit 140, and select one of the photos as the image reference sample and its parameters, and can also save the captured image. Go to the image database.

The storage unit 150 can be a built-in memory or a pluggable memory card. The built-in memory is, for example, a random access memory (RAM), a read-only memory (ROM), a flash memory, a hard disk, or the like, but is not limited thereto. The pluggable memory card is, for example, a Compact Flash (CF) memory card, a Secure Digital (SD) memory card, a Memory Stick (MS) memory card, or other types of memory cards, but Not limited to this. In this embodiment, the storage unit 150 can also be used to store an image database. For example, the image database is built in the image capturing device 100. Therefore, the processing unit 130 can obtain the image reference samples in the image database through the storage unit 150, and can also store the captured images into the image database for use as a subsequent photo reference.

The display unit 160 is, for example, a liquid crystal display (TFT-LCD), an organic electroluminescent display (OLED), or other display device that can be used for images. Therefore, the image capturing device 100 can display the captured image captured by the image sensing unit 110 and the photo or image reference sample obtained by the processing unit 130 through the display unit 160.

The steps of the method for capturing images are described below with the image capturing device 100 described above. 2 is a flow chart of a method for capturing an image according to an embodiment of the invention. Referring to FIG. 1 and FIG. 2 simultaneously, in step S201, the image capturing device 100 can obtain the current location information from the positioning unit 120. That is, when the user uses the image capturing device 100 to perform shooting, the image capturing device 100 can obtain the geographic location (for example, the latitude and longitude coordinates) where the user is currently located through the positioning unit 120.

Next, in step S203, based on the location information obtained in step S201, the processing unit 130 may obtain an image reference sample that matches the location information from the image database. For example, in the case of the image database of the cloud service platform, the processing unit 130 can be connected to the image database stored by the cloud service platform through the Internet through the connection unit 140, and transmit the location information to the cloud service platform. In the cloud service platform, the photos in the image database are searched for the location information corresponding to the location information of the image capturing device 100, and the photos are transmitted to the image capturing device 100 to display the photos through the display unit 160.

In addition, due to the different models of the image capture device, the parameters that can be applied will also vary. For example, if the image capturing device 100 is a general consumer digital camera, and the obtained image reference sample is taken by a higher-order digital single-lens reflex camera (DSLR), the parameter is applied. There will be incompatibility issues on it. Therefore, after obtaining the photos, the processing unit 130 may further filter the photos according to the model of the image capturing device 100 for screening by the user. Thereafter, the processing unit 130 uses the photo selected by the user as an image reference sample according to the user's selection.

In other embodiments, the processing unit 130 may simultaneously filter the photos of the image database according to other screening conditions, such as a specific range in which the location information is located, dynamic or static, time, and context mode, and display In the display unit 160, the user selects one of the photos as an image reference sample.

For example, the processing unit 130 may filter the photos in a specific range corresponding to the current location information from the image database according to the location information. In addition, the processing unit 130 may also filter photos having static or dynamic images in the image database according to the static/dynamic of the object. Alternatively, the time-stamped photos can be filtered from the image database according to time settings, such as dusk and nighttime. In addition, photos of a specific context pattern can be filtered from the image database according to context patterns in different environments, such as weather, place atmosphere, and color tone. However, the processing unit 130 of the present invention is not limited to the above screening conditions when screening photos of the database. In this way, before the image capturing device 100 captures the image, the processing unit 130 may filter the photos in the image database according to different settings, and further select one of them as the image reference sample.

In addition, after the processing unit 130 obtains the image reference sample in the image database, the composition information of the image reference sample may be prompted in the display unit 160. The composition information is, for example, the orientation information or the contour information of the subject in the image reference sample, or the transparent image sample obtained by the transparent image reference sample.

FIG. 3A and FIG. 3B are schematic diagrams showing composition information of a cue image reference sample according to an embodiment of the invention. As shown in FIG. 3A, the display unit 160 can display the image reference sample 300 obtained by the processing unit 130, wherein the subject 310 captured by the image reference sample 300 is a building. In this embodiment, the display unit 160 can display the orientation information of the body 310, such as shown in block 311, to indicate the location of the subject 310 in the image reference sample. In FIG. 3A, the composition information of the main body 310 may also be the outline information of the main body 310. As shown in FIG. 3B, display unit 160 can display outline 312 of body 310.

In addition, the display unit 160 can adjust the brightness or contrast of the image reference sample to make the image reference sample transparent. In this way, the display unit 160 can display the shooting angle of the main body or the scene of the image in the image reference sample, so that the user can use as a reference when performing shooting.

Returning to FIG. 2, after acquiring the image reference sample, in step S205, the processing unit 130 may apply a plurality of parameters of the image reference sample to the image capturing device 100. Further, the image sensing unit 110 may apply a plurality of parameters of at least one of a pixel, a sensitivity, an exposure time, an aperture, and a focal length of the image reference sample, or a combination thereof, but is not limited thereto. Specifically, since the user is in different shooting situations, it may only need to obtain some parameters in the image reference sample. For example, for shooting in the night mode, the user only needs to use the same sensitivity or exposure time as the image reference sample, so the image sensing unit 110 can only apply the sensitivity or exposure time of the image reference sample. That is to say, the image sensing unit 110 can apply one or a combination of a plurality of parameters of the image reference sample, such as applying preset parameters, or applying parameters set by the user. In this way, the user does not need to adjust/control the parameter setting of the image sensing unit 110 during shooting when shooting the image, and can directly apply all or part of the parameters in the image reference sample, so that the captured photo is like an image. Refer to the rendering effect in the sample.

On the other hand, when the processing unit 130 fails to conform to the image capturing device 100 according to the parameters of the image reference sample selected by the user, the processing unit 130 may also adjust the parameters of the image reference sample according to the ratio. Thereby, the image capturing device 100 can still use the image reference sample as the parameter setting at the time of shooting.

Then, in step S207, the image sensing unit 110 captures the image according to the parameters in the image reference sample. In addition, after the image sensing unit 110 captures the image, the processing unit 130 may store the captured image into the image database. For example, the processing unit 130 stores images on the cloud service platform through the Internet. As a result, different users will have more choices in the image database in the cloud service platform to select one of the photos as the image reference sample. In addition, the processing unit 130 can also store the image in the image database in the storage unit 150, and the processing unit 130 can obtain the image reference sample from the storage unit 150 of the image capturing device 100. Therefore, the user can directly select an image reference sample from the image capturing device 100 to perform shooting.

In summary, in the above embodiment, by positioning the location information of the image capturing device, obtaining an image reference sample that matches the location information from the image database, and then applying the parameters of the image reference sample, image. Moreover, when the user uses the image capturing device to take a picture, the user can further select the favorite photo as the image reference sample. Thereby, the user can control the image capturing sample in the image reference sample without using the parameters of the image capturing device.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.

100. . . Image capture device

110. . . Image sensing unit

120. . . Positioning unit

130. . . Processing unit

140. . . Connection unit

150. . . Storage unit

160. . . Display unit

300. . . Image reference sample

310. . . main body

311. . . Box

312. . . profile

S201~S207. . . Method of capturing images

FIG. 1 is a block diagram of an image capture device according to an embodiment of the invention.

2 is a flow chart of a method for capturing an image according to an embodiment of the invention.

FIG. 3A and FIG. 3B are schematic diagrams showing composition information of a cue image reference sample according to an embodiment of the invention.

S201~S207. . . Method of capturing images

Claims (14)

A method for capturing an image, which is applicable to an image capturing device, the method comprising: locating a location information of the image capturing device; and obtaining an image reference sample corresponding to the location information from an image database; A plurality of parameters of the image reference sample are applied to the image capturing device; and an image is captured according to the parameters. The method for capturing an image as described in claim 1, wherein before the step of obtaining the image reference sample corresponding to the location information from the image database, the method further comprises: connecting to the network through an internet connection Image database. The method for capturing images according to claim 1, wherein the image database is built in the image capturing device. The method for capturing an image as described in claim 1, wherein the step of obtaining the image reference sample from the image database that matches the location information comprises: obtaining a plurality of information corresponding to the location information from the image database Photographs of the photos of the image capture device are selected from the photos; and one of the selected photos is selected as the image reference sample. The method for capturing images as described in claim 1, wherein the parameters include at least one of a pixel, a sensitivity, an exposure time, an aperture, and a focal length, or a combination thereof. The method for capturing an image according to the first aspect of the patent application, wherein after the step of obtaining the image reference sample corresponding to the location information from the image database, the method further comprises: prompting the image reference in a display unit A composition information of the sample, wherein the composition information is orientation information or contour information of a subject in the image reference sample, or a transparent image sample obtained by transparentizing the image reference sample. The method for capturing an image according to the first aspect of the patent application, after the step of capturing the image according to the parameters, further comprises: storing the captured image into the image database. An image capturing device includes: an image sensing unit; a positioning unit for positioning a position information of the image capturing device; and a processing unit coupled to the positioning unit and the image sensing unit An image reference sample corresponding to the location information is obtained in the image database, and a plurality of parameters of the image reference sample are applied to the image sensing unit, so that the image sensing unit captures an image according to the parameters. The image capturing device of claim 8, further comprising: a connecting unit, connecting to the image database through the Internet. The image capturing device of claim 8, further comprising: a storage unit for storing the image database. The image capturing device of claim 8, wherein the processing unit further comprises: obtaining, from the image database, a plurality of photos that match the location information, and screening the images to match the image capturing device One of the photos of the model and one of the selected photos are selected as the image reference sample. The image capturing device of claim 8, wherein the parameters include at least one of a pixel, a sensitivity, an exposure time, an aperture, and a focal length, or a combination thereof. The image capturing device of claim 8, further comprising: a display unit for prompting a composition information of the image reference sample, wherein the composition information is a position information or a contour of a body in the image reference sample Information, or a transparent image sample obtained by transparentizing the image reference sample. The image capturing device of claim 8, wherein the processing unit further comprises storing the captured image into the image database.