CN102281399A - A kind of digital photography equipment with touch screen and its zooming method - Google Patents

Abstract

A zooming method of a digital photographing apparatus with a touch screen is characterized in that: and inputting a zooming gesture by using a touch screen provided by the digital photographing equipment, and controlling the digital photographing equipment to execute zooming operation in real time according to the change of the zooming gesture. The zooming method of the digital photographic equipment with the touch screen can control the digital photographic equipment to execute zooming operation in real time according to the change of the zooming gesture, can check the zooming effect in real time in the process of inputting the zooming gesture, and is convenient and visual. In addition, the zooming gesture is input by adopting the touch screen, so that physical keys do not need to be added on the digital photographic equipment, and the equipment space is saved.

Description

A kind of digital photography equipment with touch screen and its zooming method

Technical field:

The invention relates to a digital photographing device with a touch screen and a zooming method thereof.

Background technique:

Existing digital photography equipment generally provides an optical zoom function or a digital zoom function. Optical zoom refers to changing the physical focal length of the zoom lens, thereby changing the size of the shooting angle and the magnification of the subject. Although it can capture high-quality images, the size of the optical zoom lens is generally large, so it cannot be applied to some Digital photographic equipment with limited size, such as a mobile phone equipped with a camera; and the digital zoom, which is different from the optical zoom, essentially uses a specific image processing algorithm through the central processing unit (CPU) to process the camera optics and imaging The original image generated by the sensor is cropped and then interpolated and enlarged to the resolution of the original image. Because there is no need for a zoom lens, it is widely used in electronic devices with limited size.

There are many ways of optical zooming or digital zooming in the above-mentioned digital photography equipment. One is manual zooming. The user manually rotates the zoom ring of the lens to make the lens extend forward or retract backward to change the physical focal length of the lens. Digital photography equipment with optical zoom; the other is that users control digital photography equipment through physical buttons such as buttons and zoom levers, and then drive the lens to perform optical zoom, or use image processing algorithms to perform digital zoom on the original image. However, the above-mentioned digital photography equipment has the following defects: 1. There is usually not enough space to add more physical buttons on the digital photography equipment with limited size, so it is difficult to use physical buttons to control zooming. 2. The zooming method is single and not intuitive enough.

Invention content:

The object of the present invention is to provide a convenient and intuitive zooming method for a digital photography device with a touch screen that can check the zooming effect in real time.

A zooming method for a digital photography device with a touch screen, characterized in that: the touch screen provided by the digital photography device is used to input a zoom gesture, and the digital photography device is controlled in real time to perform a zoom operation according to the change of the zoom gesture.

The zooming method of the digital photographic device with a touch screen of the present invention can control the digital photographic device to perform the zooming operation in real time according to the change of the zooming gesture, and can check the zooming effect in real time during the process of inputting the zooming gesture, which is convenient and intuitive. In addition, the use of the touch screen to input zoom gestures eliminates the need to add physical buttons on the digital photography equipment, saving equipment space.

The zoom gesture is two touch points in contact with the touch screen. The digital photography device first records the initial distance between the two touch points, and then records the current distance between the two touch points in the process of sliding on the touch screen in real time. Finally, the zoom ratio is calculated according to the initial distance and the current distance, and the digital photography equipment is controlled to perform the zoom operation. The zoom method is simple, convenient and intuitive to operate.

When the current distance is greater than the initial distance, the digital photography equipment drives the lens through the lens driving device to optically zoom to the telephoto end, and/or uses an image processing algorithm to perform a digital zooming operation on the framing image, the framing image is composed of If the original image produced by the lens and imaging sensor of the photographic equipment exceeds the limit of the maximum zoom factor, the zoom factor will no longer increase. The image gradually zooms in and out as the distance of the zoom gesture increases, and the operation is intuitive and convenient.

When the current distance is smaller than the initial distance, the digital photography equipment drives the lens through the lens driving device to optically zoom to the wide-angle end, and/or uses an image processing algorithm to perform digital zooming operations on the viewfinder image. If the minimum zoom factor limit is exceeded, Then the zoom factor will no longer decrease. The image gradually zooms in and out as the distance of the zoom gesture decreases, and the operation is intuitive and convenient.

The zoom gesture is a contact with a zoom slider displayed on the touch screen, and the digital photography device performs an optical zoom operation and/or a digital zoom operation according to the movement of the contact along a predetermined path on the touch screen. The operation is intuitive and convenient.

The zoom gesture is a contact with a zoom control key displayed on the touch screen, and the digital photography device performs an optical zoom operation and/or a digital zoom operation according to the contact. The operation is intuitive and convenient.

The zoom gesture is a double-tap contact with the viewfinder image on the touch screen, and the digital photography device performs an optical zoom operation or a digital zoom operation according to the double-tap contact. The operation is intuitive and convenient.

The zooming gesture is a combination of any one of the above and one or more other zooming gestures, and the zooming modes are diverse.

It also includes using the physical zoom button or zoom lever on the digital photography equipment to control the lens driving device to drive the lens to perform optical zoom and/or to use image processing algorithms to enlarge or reduce the digital zoom of the viewfinder image.

Another object of the present invention is to provide a digital photography device with a touch screen which is convenient and intuitive, and can check the zoom effect in real time.

A digital photographing device with a touch screen, characterized in that it includes a processing unit, a storage unit electrically connected to the processing unit, a touch screen composed of a display screen and a touch panel located above the display screen, a screen controller, an input controller, A lens and an image sensor, the image sensor receives an optical signal through the lens, converts the received optical signal into a digital signal and sends it to the processing unit, the processing unit processes and analyzes the digital signal to generate an image signal and sends it to the screen controller, The screen controller controls the display screen to display images, and the storage unit is used to store the data generated during the execution of the code by the processing unit, including the captured images. The touch panel can send the input zoom gesture to the input controller, and the input controller After the zoom gesture is processed, a corresponding input control signal is generated and sent to the processing unit, and the processing unit uses an image processing algorithm to perform a digital zoom operation of zooming in or out on the viewfinder image according to the input control signal.

A digital photographic device with a touch screen of the present invention can control the digital photographic device to perform zooming operation in real time according to the change of the zooming gesture, and can check the zooming effect in real time during the process of inputting the zooming gesture, which is convenient and intuitive. In addition, the use of the touch screen to input zoom gestures eliminates the need to add physical buttons on the digital photography equipment, saving equipment space.

It also includes a lens driving device, and the processing unit can also control the lens driving device to drive the lens to move back and forth for optical zooming according to the input control signal, forming two sets of zooming systems, which can greatly increase the zoom factor.

The zoom gesture is two touch points in contact with the touch screen. The processing unit of the digital photography device first records the initial distance between the two touch points, and then records in real time the distance between the two touch points during the sliding process on the touch screen. The current distance, and then calculate the zoom ratio according to the initial distance and the current distance, and control the lens driving device to drive the lens to move forward and backward according to the calculated zoom ratio to perform optical zoom, and/or use an image processing algorithm to zoom in on the viewfinder image according to the calculated zoom ratio. Reduced digital zoom operation. The zoom method is simple, convenient and intuitive to operate.

When the current distance is greater than the initial distance, the processing unit of the digital photography device controls the lens driving device to drive the lens to optically zoom to the telephoto end, and/or the processing unit of the digital photography device uses an image processing algorithm to enlarge the viewfinder image. The image gradually zooms in and out as the distance of the zoom gesture increases, and the operation is intuitive and convenient.

When the current distance is smaller than the initial distance, the processing unit of the digital photography device controls the lens driving device to drive the lens to optically zoom to the wide-angle end, and/or the processing unit of the digital photography device uses an image processing algorithm to zoom out the viewfinder image. The image gradually zooms in and out as the distance of the zoom gesture decreases, and the operation is intuitive and convenient.

A zoom slider and a predetermined path are displayed on the touch screen, the zoom gesture is a contact with the zoom slider displayed on the touch screen, and the processing unit of the digital photography device performs an optical zoom operation according to the movement of the contact along the predetermined path on the touch screen and/or digital zoom operation, the operation is intuitive and convenient.

A zoom control key is displayed on the touch screen, and the zoom gesture is a contact with the zoom control key displayed on the touch screen, and the processing unit of the digital photography device performs an optical zoom operation and/or a digital zoom operation according to the contact. The operation is intuitive and convenient.

The zoom gesture is a double-tap contact with the framing image on the touch screen, and the processing unit of the digital photography device performs an optical zoom operation and/or a digital zoom operation according to the double-tap contact. The operation is intuitive and convenient.

The zoom gesture is any one or a combination of several zoom gestures mentioned above. There are various ways to zoom.

It also includes a physical zoom button or zoom lever electrically connected to the input controller. The physical zoom button or zoom lever can send the zoom signal to the input controller, and the input controller generates a corresponding input control signal after processing the zoom signal and sends it to A processing unit, the processing unit controls the lens driving device to drive the lens to move back and forth according to the input control signal to perform optical zoom and/or digital zoom operations. Description of drawings:

FIG. 1 is a schematic diagram of the operation when the input zoom gesture of the present invention is two touch points in contact with the touch screen.

FIG. 2 is a schematic diagram of the combined use of the zoom gesture in FIG. 1 of the present invention and the zoom gesture in which the slider moves along a predetermined path.

FIG. 3 is a schematic diagram of the combined use of a zoom gesture in FIG. 1 and another zoom gesture in contact with a zoom control key in the present invention.

Fig. 4 is a flow chart of a zooming method of a digital photography device with a touch screen according to the present invention.

Fig. 5 is a structural block diagram of a digital photography device with a touch screen in the present invention.

Detailed ways:

Embodiment 1: as shown in Figure 1, a kind of zooming method of the digital photography equipment with touch screen, especially a kind of zooming method of the touch screen mobile phone with photography function, comprises: use the touch screen 101 that touch screen mobile phone provides to input zooming gesture , the zoom gesture is two touch points 103 and 105 in contact with the touch screen 101; the touch screen mobile phone first records the initial distance between the two touch points 103 and 105, and then records the two touch points 103 and 105 in real time. 105 the current distance during the sliding process on the touch screen 101; when the zoom gesture 102 is input to make the current distance greater than the initial distance, the touch-screen mobile phone drives the lens through the lens drive device to optically zoom to the telephoto end, and/or uses an image processing algorithm to The magnification operation of the digital zoom is carried out on the framing image, and the framing image is the original image produced by the lens and imaging sensor of the touch-screen mobile phone. If it exceeds the maximum zoom factor limit, the zoom factor will no longer increase; when the input zoom gesture 104 makes the current When the spacing is smaller than the initial spacing, the touch-screen mobile phone drives the lens through the lens driving device to perform optical zooming to the wide-angle end, and/or uses image processing algorithms to perform digital zooming operations on the viewfinder image. If the minimum zoom factor limit is exceeded, the zoom factor will not Reduce again.

As shown in Fig. 5, a kind of digital photography equipment with touch screen, especially a kind of touch screen mobile phone with photography function, comprises processing unit 304, storage unit 305 and 306 that are electrically connected with processing unit, by display screen 308 and located at The touch screen formed by the touch panel 309 above the display screen, the screen controller 307, the input controller 310, the lens 301, the lens driving device 303 and the image sensor 302, the image sensor 302 receives the light signal through the lens 301, and the received The optical signal is converted into a digital signal and then sent to the processing unit 304. The processing unit 304 processes and analyzes the digital signal to generate an image signal and sends it to the screen controller 307. The screen controller 307 controls the display screen 308 to display the image. Among the storage unit 305 Codes executable by the CPU are stored, such as operating systems, application programs, drivers, etc., and the storage unit 306 is used to store data generated during the execution of the codes by the CPU, including captured images. The touch panel 309 can input The zoom gesture is sent to the input controller 310, and the input controller 310 generates a corresponding input control signal after processing the zoom gesture and sends it to the processing unit 304. The processing unit 304 controls the lens driving device 303 to drive the lens 301 to move back and forth according to the input control signal. The optical zoom and/or the processing unit 304 uses an image processing algorithm to perform a digital zoom operation of zooming in or zooming out the viewfinder image according to the input control signal. The zoom gesture is two touch points 103 and 105 in contact with the touch screen 101. The processing unit 304 of the touch screen mobile phone first records the initial distance between the two touch points 103 and 105, and then records the two touch points in real time. Point the current distance in the sliding process on the touch screen 101, and then calculate the zoom ratio according to the initial distance and the current distance; when the zoom gesture 102 is input to make the current distance greater than the initial distance, the processing unit 304 of the touch-screen mobile phone controls the lens driving device 303 to drive the lens 301 performs optical zooming to the telephoto end, and/or the processing unit 304 of the touch-screen mobile phone uses an image processing algorithm to enlarge the viewfinder image; when the input zoom gesture 104 makes the current distance smaller than the initial distance, the processing unit 304 of the touch-screen mobile phone controls The lens driving device 303 drives the lens 301 to optically zoom to the wide-angle end, and/or the processing unit 304 of the touch-screen mobile phone uses an image processing algorithm to reduce the viewfinder image.

Embodiment 2, as shown in FIG. 2 , differs from the zoom method in Embodiment 1 in that the zoom gesture also includes contact with the zoom slider 106 displayed on the touch screen 101, and the touch screen mobile phone moves along the touch screen 101 according to the contact. The movement of the upper linear predetermined path 107 performs an optical zoom operation and/or a digital zoom operation, and the predetermined path 107 may also be curved, parabolic, or a path that rotates clockwise or counterclockwise at a certain angle.

The difference from the digital photographing device with a touch screen in Embodiment 1, especially a touch screen mobile phone with a photographic function, is that a zoom slider 106 and a linear predetermined path 107 are also displayed on the touch screen, and the zoom The gesture also includes contact with the zoom slider 106 displayed on the touch screen 101, and the processing unit 304 of the touch screen mobile phone performs an optical zoom operation and/or a digital zoom operation according to the movement of the contact along a predetermined path 107 on the touch screen. It can also be curved, parabolic, or a path that rotates clockwise or counterclockwise at a certain angle.

Embodiment 3, as shown in FIG. 3 , differs from the zoom method in Embodiment 1 in that: the zoom gesture also includes contact with the zoom control keys 201 and 202 displayed on the touch screen 101, and the touch screen mobile phone executes optical zooming according to the contact. zoom operation and/or digital zoom operation.

The difference from the digital photography device with a touch screen in Embodiment 1, especially a touch-screen mobile phone with a photography function, is that zoom control keys 201 and 202 are also displayed on the touch screen 101, and the zoom gesture also includes According to the contact with the zoom control keys 201 and 202 displayed on the touch screen 101, the touch screen mobile phone performs an optical zoom operation and/or a digital zoom operation according to the contact.

Embodiment 4 differs from the zoom method in Embodiment 1 in that the zoom gesture further includes a double-tap contact with the viewfinder image on the touch screen 101, and the touch-screen mobile phone performs an optical zoom operation or a digital zoom operation according to the double-tap contact. As shown in Figure 4, its zoom process 404 mainly includes the following steps: in operation 501, it is judged whether the zoom gesture input by the user is a multi-touch gesture in which two fingers are in contact with the touch screen; if so, proceed to operation 502, record The initial distance between the two fingers; then proceed to operation 503 to determine whether the finger leaves the touch screen, and if the finger leaves the touch screen, the input ends; otherwise, perform operation 504 to record the current distance between the two fingers; then perform operation 505, according to the initial distance between the two fingers and the current distance Calculate the zoom factor; perform operation 506, and the touchscreen mobile phone performs a zoom operation according to the calculated zoom factor, and then returns to operation 503 again to start a new round of detection.

When the judgment result in the above-mentioned operation 501 is negative, proceed to operation 507, and judge whether the input zoom gesture is a double-tap gesture; if it is a double-tap gesture, perform operation 508, and perform an optical zoom operation and/or digital zoom at a zoom factor of 1. operation, otherwise the input ends.

The difference from the digital photography device with a touch screen in Embodiment 1, especially a touch-screen mobile phone with a photography function, is that the zoom gesture also includes a double-tap contact with the viewfinder image on the touch screen 101, and the touch-screen mobile phone according to The double-tap contact performs an optical zoom operation and/or a digital zoom operation.

The above descriptions are only preferred embodiments of the present invention, and are not used to limit the scope of the present invention. Of course, the zoom gesture can also be any combination of zoom gestures in each embodiment. Provide a physical zoom button or zoom lever electrically connected to the input controller 310, the physical zoom button or zoom lever can send a zoom signal to the input controller 310, and the input controller 310 processes the zoom signal to generate a corresponding input control signal and The processing unit 304 controls the lens driving device 303 to drive the lens 301 to move back and forth to perform optical zooming and/or use image processing algorithms to zoom in or zoom out the viewfinder image digitally according to the input control signal. All equivalent changes and modifications made according to the patent scope of the present invention fall within the scope covered by the patent of the present invention.

Claims (19)

1. a kind of zooming method of the digital photography equipment with touch screen, it is characterized in that: use the touch screen input zoom gesture that digital photography equipment provides, control digital photography equipment to carry out zoom operation in real time according to the change of zoom gesture. 2. The zooming method of a digital photography device with a touch screen according to claim 1, wherein the zoom gesture is two touch points in contact with the touch screen, and the digital photography device first records the two touch points. The initial distance between the points, and then record the current distance between the two touch points in the process of sliding on the touch screen in real time, and finally calculate the zoom ratio according to the initial distance and the current distance, and control the digital photography equipment to perform the zoom operation. 3. The zooming method of a digital photography device with a touch screen according to claim 2, characterized in that: when the current distance is greater than the initial distance, the digital photography device drives the lens through the lens drive device to optically zoom to a telephoto end, and/or use an image processing algorithm to digitally zoom the framing image, which is the original image generated by the lens and imaging sensor of the photographic device. 4. The zooming method of a digital photography device with a touch screen according to claim 3, characterized in that: when the current distance is less than the initial distance, the digital photography device drives the lens through the lens driving device to optically zoom to the wide-angle end , and/or use an image processing algorithm to perform a digital zoom reduction operation on the viewfinder image. 5. The zooming method of a digital photography device with a touch screen according to claim 1, wherein the zoom gesture is a contact with a zoom slider displayed on the touch screen, and the digital photography device moves along the touch screen according to the contact. The movement of the predetermined path performs an optical zoom operation and/or a digital zoom operation. 6. The zooming method of a digital photography device with a touch screen according to claim 1, wherein the zoom gesture is a contact with a zoom control key displayed on the touch screen, and the digital photography device performs optical zooming according to the contact operation and/or digital zoom operation. 7. The zooming method of a digital photography device with a touch screen according to claim 1, wherein the zoom gesture is a double-click contact with the viewfinder image on the touch screen, and the digital photography device performs optical zooming according to the double-click contact operation or digital zoom operation. 8. The zooming method of a digital photography device with a touch screen according to claim 1, wherein the zooming gesture is any one of claims 2, 3 or 4 and claims 5, 6, 7 or A combination of several zoom gestures. 9. the zooming method of a kind of digital photographing equipment with touch screen according to claim 8, is characterized in that: also comprise utilizing the physical zoom button or zoom bar on the digital photographing equipment to control the lens driving device to drive its camera lens to carry out optical zooming and /or use image processing algorithm to enlarge or reduce the digital zoom of the viewfinder image. 10. A digital photography device with a touch screen, characterized in that: it comprises a processing unit, a storage unit electrically connected to the processing unit, a touch screen composed of a display screen and a touch panel positioned above the display screen, a screen controller, an input control device, lens and image sensor, the image sensor receives the optical signal through the lens, converts the received optical signal into a digital signal and sends it to the processing unit, and the processing unit processes and analyzes the digital signal to generate an image signal and sends it to the screen control The screen controller controls the display screen to display an image, and the storage unit is used to store the data generated during the execution of the code by the processing unit, including the captured image. The touch panel can send the input zoom gesture to the input controller, input After processing the zoom gesture, the controller generates a corresponding input control signal and sends it to the processing unit, and the processing unit uses an image processing algorithm to perform a digital zoom operation of zooming in or out on the viewfinder image according to the input control signal. 11. A digital photography device with a touch screen according to claim 10, further comprising a lens driving device, and the processing unit can also control the lens driving device to drive the lens to move back and forth for optical zooming according to the input control signal. 12. A digital photography device with a touch screen according to claim 10 or 11, characterized in that: the zoom gesture is two touch points in contact with the touch screen, and the processing unit of the digital photography device first records two The initial distance between the touch points, and then record the current distance between the two touch points in the process of sliding on the touch screen in real time, then calculate the zoom ratio according to the initial distance and the current distance, and control the lens driving device to drive the lens according to the calculated zoom ratio Moving back and forth to perform optical zooming, and/or using an image processing algorithm to zoom in or out a digital zooming operation on the viewfinder image according to the calculated zoom ratio. 13. A digital photography device with a touch screen according to claim 12, characterized in that: when the current distance is greater than the initial distance, the processing unit of the digital photography device controls the lens driving device to drive the lens to optically zoom to telephoto The terminal, and/or the processing unit of the digital photographic device uses an image processing algorithm to enlarge the viewfinder image. 14. A digital photography device with a touch screen according to claim 13, characterized in that: when the current distance is smaller than the initial distance, the processing unit of the digital photography device controls the lens driving device to drive the lens to optically zoom to the wide-angle end , and/or the processing unit of the digital photography equipment uses an image processing algorithm to reduce the viewfinder image. 15. A digital photography device with a touch screen according to claim 10 or 11, characterized in that: a zoom slider and a predetermined path are displayed on the touch screen, and the zoom gesture is the same as the zoom slider displayed on the touch screen The processing unit of the digital photography device performs an optical zoom operation and/or a digital zoom operation according to the movement of the contact along a predetermined path on the touch screen. 16. A digital photographing device with a touch screen according to claim 10 or 11, wherein a zoom control key is displayed on the touch screen, and the zoom gesture is a contact with the zoom control key displayed on the touch screen, A processing unit of the digital photography device performs an optical zoom operation and/or a digital zoom operation according to the contact. 17. A digital photography device with a touch screen according to claim 10 or 11, characterized in that: the zoom gesture is a double-tap contact with the viewfinder image on the touch screen, and the processing unit of the digital photography device executes according to the double-tap contact. Optical zoom operation and/or digital zoom operation. 18. A digital photography device with a touch screen according to claim 10 or 11, wherein the zoom gesture is any one or more of claims 12, 13 or 14 and 15, 16, 17 A combination of zoom gestures. 19. A digital photography device with a touch screen according to claim 18, characterized in that: it also includes a physical zoom button or a zoom lever electrically connected to the input controller, and the physical zoom button or zoom lever can send a zoom signal to The input controller processes the zoom signal to generate a corresponding input control signal and sends it to the processing unit, and the processing unit controls the lens driving device to drive the lens to move back and forth according to the input control signal to perform optical zoom and/or digital zoom operations.

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