TWI401527B - Personalized safety shutter value setting method and recording medium - Google Patents

Description

Personalized safety shutter value setting method and recording medium

The present invention relates to a method of setting an imaging parameter of an imaging apparatus, and more particularly to a method of setting a personalized security shutter value.

When using a conventional camera for image capture, in order to capture images with better image quality, the user needs to adjust the aperture parameters such as the aperture and shutter of the conventional camera in accordance with the shooting environment. However, the average user does not necessarily have the knowledge and ability to do so, and thus cannot adjust the imaging parameters suitable for the shooting environment, causing the user to frequently take images of poor quality.

Then, a digital camera device that automatically adjusts the imaging parameters according to the shooting environment is developed. For image capture, the digital camera detects the shooting environment to automatically select the camera parameters that are more suitable for the shooting environment for the user to take the image. Therefore, since the introduction of digital camera devices, it has been widely used in the current market, and has gradually replaced traditional cameras.

Generally speaking, when the digital camera device is shipped from the factory, the designer has first set the adjustable range of the camera parameters required for various shooting environments according to various shooting environments, for example, various shooting situations/modes. Therefore, when performing image capturing, the user only needs to select the shooting situation/mode according to the current shooting environment, and does not need to manually set the imaging parameters as when using a conventional camera, and the digital camera can adjust/select the appropriate one at the time of shooting. Camera parameters for users to take images.

In order to prevent a general user from taking a digital camera, the image is blurred due to hand shaking, and a blurred image is captured. Therefore, a safe shutter value is set in the digital camera, which is a constant value. Among them, the generalized safety shutter value is the reciprocal of the focal length in seconds (sec).

In general, the safe shutter value set in a digital camera is just a preset for most users. Since the stability of each user's handheld digital camera is different, and each user's taking habits are different, the same safe shutter value does not necessarily apply to each user, and thus is still easy in special shooting situations. Shoot images of poor quality.

The present invention provides a method for setting a personalized security shutter value, thereby solving the problem that a fixed safety shutter value cannot be applied to each user.

The method of setting the personalized security shutter value according to the present invention can be applied to an image pickup apparatus.

First, a plurality of images captured at different exposure times are acquired by the imaging device, and a Blur detection program is performed on each image while acquiring each image to determine the image quality of each image. Next, the longest exposure time in which the image quality is determined to be clear is set as the safe shutter value of the imaging device.

Wherein, the image capturing device performs capturing at different exposure times to continuously acquire images. In addition, the plurality of images captured may also be a plurality of images obtained with different exposure times in the stored images.

The method of the present invention can be built in a storage unit of a camera device through a software or firmware program, or stored in a pluggable recording medium, and then read and executed by a processing module of the camera device to execute a storage unit or a recording medium. The program stored in the program (ie, the code) causes the camera to perform the above-described method of setting the personalized security shutter value.

In addition, the camera device can also read and execute a program (ie, a code) stored in the recording medium by the electronic device through the external electronic device, so that the camera device performs the above-described method for setting the personalized security shutter value.

The method for setting the personalized security shutter value according to the present invention can be applied to an image pickup device, so that the image pickup device uses the blur detection program to determine the image quality of the captured image, and selects an appropriate exposure according to the determination result of the image quality. Time comes as a safe shutter value for the camera to provide a user-friendly, secure shutter value.

The features and implementations of the present invention are described in detail below with reference to the preferred embodiments.

Fig. 1 is a flowchart showing a method of setting a personalized security shutter value according to the present invention; and Fig. 2 is a schematic diagram of an image pickup apparatus to which a personalized security shutter value setting method of the present invention is applied.

Referring to "1st drawing" and "2nd drawing", the method of setting the personalized security shutter value according to the present invention can be applied to the image pickup apparatus 100. The camera device 100 can include a processing module 120, a storage unit 130, and a camera module 140.

In this embodiment, first, a plurality of images captured at different exposure times are acquired by the imaging device 100, and each image is acquired while performing Blur detection on each image to determine each image. Image quality (step 21). Finally, the longest exposure time among the images whose image quality is determined to be clear is set as the safe shutter value of the image pickup apparatus 100 (step 23).

Wherein, the camera device 100 can preset an initial safety shutter value, and the longest exposure time replaces the initial safety shutter value to set a safe shutter value.

Here, the step of setting the longest exposure time of the image quality determined to be clear to the safe shutter value of the image pickup apparatus 100 may include replacing the initial safety shutter value with the longest exposure time.

For example, when the imaging apparatus 100 is performing the setting of the personalized security shutter value, the imaging apparatus 100 first acquires two or more images having different exposure times (step 21).

Then, the image quality of each image is determined by the blur detection program built in the image pickup apparatus 100. The fuzzy detection program can be a programmable software program and is built in the storage unit 130 of the camera device. After the step of acquiring the images of the plurality of different exposure times, the processing module 120 of the camera device 100 reads and executes the corresponding program of the blur detection program stored in the storage unit 130 to determine the images of the different exposure times. The image quality is clear or blurred.

Finally, the processing module 120 of the camera device 100 determines the image having the longest exposure time from the image determined by the blur detection program to determine the image quality, and sets the longest exposure time (ie, the longest exposure time). It is a safe shutter value of the image pickup apparatus 100 (step 23).

The image with different exposure time may be obtained when the personalized security shutter value is set, and the user is directly required to continuously capture images of different exposure times by using the camera module 140. Moreover, the processing module 120 performs a blur detection process on the image while capturing the image.

Furthermore, the images with different exposure times may be obtained by directly selecting images of different exposure times from the images stored in the storage unit 130. In other words, after capturing the image through the camera module 140 , the image capturing device 100 stores the captured image in the storage unit 130 . When the personalized security shutter value is to be set, the image capturing apparatus 100 reads the stored image from the storage unit 130 and performs a blur detection process on the read image.

Taking the image of five different exposure times as an example, assuming that the focal length of the image capturing apparatus 100 is 35 mm (mm), the initial safe shutter value preset by the image capturing apparatus 100 is 1/35 second (sec). ).

When setting the personalized security shutter value, the image pickup apparatus 100 acquires images of five different exposure times by directly capturing or reading the stored image. For convenience of explanation, the following are referred to as a first image (exposure time 1/100 second), a second image (exposure time 1/50 second), a third image (exposure time 1/20 second), and a fourth image (exposure) Time 1/10 second) and the fifth image (exposure time 1/15 second).

Then, the image quality of the first image, the second image, the third image, the fourth image, and the fifth image is determined by the blur detection program built in the image capturing device 100. Here, it is assumed that the image quality of the first image, the second image, the third image, the fourth image, and the fifth image are determined as follows: the image quality of the first image is clear, and the image quality of the second image is clear. The image quality of the third image is clear, the image quality of the fourth image is blurred, and the image quality of the fifth image is clear.

Then, the processing module 120 of the image capturing apparatus 100 selects an image having the longest exposure time parameter from the image with clear image quality (ie, the first image, the second image, the third image, and the fifth image) (ie, The fifth image), in turn, replaces the initial safety shutter value with the exposure time (ie, 1/15 second) of the image having the longest exposure time parameter (ie, 1/15 second), as the camera device 100 is used for subsequent shooting. The safety shutter value.

The storage unit 130 (such as a hard disk, a flash drive, a memory, or a read-only memory) built into the camera device 100 through a software or a firmware program can also be stored in a pluggable recording medium. 150 (please refer to "Figure 3") (such as: memory card or CD, etc.). Then, the processing module 120 of the imaging apparatus 100 reads and executes the program (ie, the code) stored in the storage unit 130 or the recording medium 150, so that the imaging apparatus 100 executes the above-described method of setting the personalized security shutter value.

In addition, the camera device 100 can also communicate with an electronic device (such as a computer, a notebook computer, or a palmtop computer) to read and execute a program (ie, a code) stored in the recording medium by the electronic device. The image pickup apparatus 100 executes the above-described method of setting a personalized security shutter value.

Furthermore, the image pickup apparatus applying the method of setting the personalized security shutter value according to the present invention can automatically execute the program corresponding to the setting method of the personalized security shutter value according to the present invention at a specific time or a fixed time interval. The safety shutter value recorded in it is updated to provide the user's personalized full shutter value.

In addition, the image pickup device applying the method for setting the personalized security shutter value according to the present invention can also cause the user to manually select this option by providing an option for setting a personalized security shutter value, thereby causing the camera device to perform a personalized security shutter. The setting of the value implements a method of setting the personalized security shutter value according to the present invention.

The method for setting the personalized security shutter value according to the present invention can be applied to an image pickup device, so that the image pickup device determines the image quality of the captured image through the blur detection program, and selects an appropriate exposure time according to the determination result of the image quality. As a safe shutter value of the camera, it provides a user-friendly, secure shutter value. Among them, for users with poor stability (that is, the camera is in an unstable state during shooting), the personalized safety shutter value can prevent the user from taking blurred images. For users with good stability, a personalized safety shutter value reduces the safety shutter value while still avoiding blurry images and shooting in dim environments. Moreover, for users with good stability, the personalized safety shutter value can also make the background brighter when the user takes photos with the flash, so the relative use of the flash can be relatively reduced or the energy of the used flash can be relatively reduced. The effect of power saving.

While the present invention has been described above in terms of the preferred embodiments thereof, it is not intended to limit the invention, and the invention may be modified and modified without departing from the spirit and scope of the invention. The patent protection scope of the invention is subject to the definition of the scope of the patent application attached to the specification.

100. . . Camera

120. . . Processing module

130. . . Storage unit

140. . . Camera module

150. . . Recording media

1 is a flow chart showing a method for setting a personalized security shutter value of the present invention;

2 is a schematic diagram of an image pickup apparatus to which a method of setting a personalized security shutter value of the present invention is applied;

Fig. 3 is a schematic view showing another embodiment of an image pickup apparatus to which the method of setting the personalized security shutter value of the present invention is applied.

Claims (10)

A method for setting a personalized security shutter value is applied to an image capturing device, comprising: capturing, by the image capturing device, a plurality of images captured at different exposure times, and performing blurring on each of the images while acquiring each of the images The detection program is configured to determine the image quality of each of the images; and the longest exposure time of the at least one image in which the image quality is determined to be clear is a safe shutter value of the camera. The method for setting a personalized security shutter value according to claim 1, wherein the camera device captures the images with different exposure times to obtain the images continuously. The method for setting a personalized security shutter value according to claim 2, wherein the images comprise at least two images stored in the image capturing device. The method for setting a personalized security shutter value according to claim 1, wherein the camera device presets an initial safety shutter value, which is replaced by the initial safety shutter value to set the safe shutter value. A method of setting a personalized security shutter value as claimed in claim 1, wherein the camera device is in an unstable state. A recording medium storing a program code for causing a camera to perform the setting method of the personalized security shutter value of the request item 1. A method for setting a personalized security shutter value is applied to an image capturing device, comprising: capturing, by the camera device, a plurality of images captured at different exposure times; performing a blur detection process on the acquired images to Determining the image quality of each of the images; and setting the longest exposure time of at least one of the images in which the image quality is determined to be a safe shutter value of the camera. The method for setting a personalized security shutter value according to claim 7 includes: storing the acquired images; wherein the capturing the images respectively performs a blur detecting procedure, including: reading and storing The images; and performing the blur detection process on the images read. The method for setting a personalized security shutter value according to claim 7, wherein the camera device presets an initial safety shutter value, which is replaced by the initial safety shutter value to set the safe shutter value. A method of setting a personalized security shutter value as set forth in claim 7, wherein the camera device is in an unstable state.