CN102914932A - Photographic device and method for focusing by eyes of photographic device user - Google Patents
Photographic device and method for focusing by eyes of photographic device user Download PDFInfo
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- CN102914932A CN102914932A CN2011102210176A CN201110221017A CN102914932A CN 102914932 A CN102914932 A CN 102914932A CN 2011102210176 A CN2011102210176 A CN 2011102210176A CN 201110221017 A CN201110221017 A CN 201110221017A CN 102914932 A CN102914932 A CN 102914932A
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Abstract
An embodiment of the invention provides a photographic device and a method for focusing by eyes of a photographic device user. The method includes: acquiring a focusing position of a main camera of the photographic device in a shooting image; acquiring motion trail direction of eyeballs of the user, track-shot by a user-facing auxiliary camera of the photographic device; and moving the focusing position of the main camera in the shooting image towards the motion trail direction of the eyeballs of the user according to the motion trail direction of the eyes of the user. The photographic device comprises a position acquisition unit, a trail acquisition unit and a focus adjusting unit, wherein the position acquisition unit is used for acquiring the focusing position of the main camera of the photographic device in the shooting image, the trail acquisition unit is used for acquiring the motion trail direction of the eyeballs of the user, track-shot by the user-facing auxiliary camera of the photographic device, and the focus adjusting unit is used for moving the focusing position of the main camera in the shooting image towards the motion trail direction of the eyeballs of the user according to the motion trail direction of the eyeballs of the user. Focusing cost of the photographic device is lowered, and focusing time is shortened.
Description
Technical field
The present invention relates to the camera technique field, relate in particular to method and picture pick-up device that a kind of eyes that utilize the picture pick-up device user are focused.
Background technology
Traditional camera, take a kind of mode of similar range estimation range finding to realize automatic focusing, camera is launched a kind of infrared ray (or other ray), determines the distance of subject according to the reflection of subject, then adjust the camera lens combination according to the result who records, realize automatically focusing.This automatic focusing mode---directly, speed is fast, realize easily, cost is low, (when being arranged between camera and the subject, other thing such as glass just can't realize automatic focusing but sometimes can make mistakes, perhaps in the situation of insufficient light), precision is also poor, and nowadays high-grade camera has not generally used this kind mode.Because be initiatively divergent-ray of camera, so symmetrical active, because of its actual just range finding, the actual imaging by camera lens does not judge whether correct coking, so be called again non-TTL (Through The Lens passes through camera lens) formula again.
This focusing mode had developed afterwards passive type and had automatically focused with respect to active automatic focusing, and namely the actual imaging according to camera lens judges whether correct coking, and the foundation of judgement generally is that contrast detects formula, concrete principle very complex.Because this mode realizes by lens imaging, automatically focuses so be called TTL.Also realize based on lens imaging just because of this automatic focusing mode, the precision height of therefore focusing, the ratio that goes wrong is low, but technical sophistication, speed slow (except the senior autofocus lens of employing ultrasonic motor), cost is also higher.
Manual focus, thereby it is to regulate camera lens by the hand-turning focusing ring to make clearly a kind of focusing mode of shooting photo out, and this mode relies on human eye to differentiation and photographer's skill level even photographer's the eyesight of the image on the focusing screen largely.Early stage single-mirror reflecting camera and paraxonic camera are substantially all finished the focusing operation with manual focus.Present accurate specialty and special digital camera also have single anti-digital camera all to be provided with the function of manual focus, to cooperate different shooting needs.
In realizing process of the present invention, the inventor finds that there are the following problems at least in the prior art: fixed area focusing existing problems are underactions in the prior art, cost is also higher, and the method for manual focus to be the user need time and operation are adjusted, and the focusing time is longer.
Summary of the invention
Method and picture pick-up device that the embodiment of the invention provides a kind of eyes that utilize the picture pick-up device user to focus to reduce cost, shorten the focusing time.
On the one hand, the method that the embodiment of the invention provides a kind of eyes that utilize the picture pick-up device user to focus, the method that the described eyes that utilize the picture pick-up device user are focused comprises: obtain the main camera of picture pick-up device at the focal position of camera picture; Obtain the described user's of the user oriented secondary camera track up of described picture pick-up device the movement locus direction of eyeball; Utilize the movement locus direction of described user's eyeball, with described main camera in the corresponding movement of movement locus direction to described user's eyeball of the focal position of camera picture.
On the other hand, the picture pick-up device that the embodiment of the invention provides a kind of user's of utilization eyes to focus, the picture pick-up device that the described user's of utilization eyes are focused comprises:
The position acquisition unit is used for obtaining the main camera of picture pick-up device at the focal position of camera picture;
The track acquiring unit is used for obtaining the described user's of the user oriented secondary camera track up of described picture pick-up device the movement locus direction of eyeball;
Focus adjustment unit is used for utilizing the movement locus direction of described user's eyeball, with described main camera in the corresponding movement of movement locus direction to described user's eyeball of the focal position of camera picture.
Again on the one hand, the embodiment of the invention provides a kind of portable terminal, includes the picture pick-up device that the above-mentioned user's of utilization eyes are focused.
Technique scheme has following beneficial effect: obtain the main camera of picture pick-up device at the focal position of camera picture because adopt; Obtain the described user's of the user oriented secondary camera track up of described picture pick-up device the movement locus direction of eyeball; Utilize the movement locus direction of described user's eyeball, with described main camera in the focal position of the camera picture technological means to the corresponding movement of movement locus direction of described user's eyeball, reduce the required cost of focusing so reached, and shortened the technique effect of focusing required time, in addition, owing to utilize eyeball to focus, focusing more flexibly, conveniently, and both hands have been liberated, especially concerning being more practical, convenient the handicapped personage of adversary.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the method flow diagram that a kind of eyes that utilize the picture pick-up device user of the embodiment of the invention are focused;
Fig. 2 is the picture pick-up device structural representation that a kind of user's of utilization of the embodiment of the invention eyes are focused;
Fig. 3 is the picture pick-up device structural representation that embodiment of the invention another kind utilizes user's eyes to focus;
Fig. 4 is embodiment of the invention focus adjustment unit structural representation.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
As shown in Figure 1, the method flow diagram that utilizes picture pick-up device user's eyes to focus for the embodiment of the invention is a kind of, the method that the described eyes that utilize the picture pick-up device user are focused comprises:
101, obtain the main camera of picture pick-up device at the focal position of camera picture;
102, obtain the described user's of the user oriented secondary camera track up of described picture pick-up device the movement locus direction of eyeball;
103, utilize the movement locus direction of described user's eyeball, with described main camera in the corresponding movement of movement locus direction to described user's eyeball of the focal position of camera picture.
Need to prove herein, so-called main camera in the embodiment of the invention, secondary camera are with regard to making a video recording, if picture pick-up device is mobile communication terminal and carry out the 3G visual telephone, also just it doesn't matter major-minor minute, herein so-called main camera, secondary camera are comparatively speaking, and be not as a limitation of the invention.
Optionally, the method that the described eyes that utilize the picture pick-up device user are focused can also comprise: when described user utilized described picture pick-up device to take, the user oriented secondary camera of the main camera of described picture pick-up device and described picture pick-up device was worked simultaneously.
Optionally, the described main camera of picture pick-up device that obtains is at the focal position of camera picture, can comprise: when described user utilized described picture pick-up device to take, in the focusing starting stage, the main camera of described picture pick-up device was positioned at the central authorities of described camera picture at the focal position of camera picture.
Optionally, the movement locus direction of the described described user's who obtains the user oriented secondary camera track up of described picture pick-up device eyeball, can comprise: also according to the action of user's head, obtain the described user's of the user oriented secondary camera track up of described picture pick-up device the movement locus direction of eyeball.Toward left/right, then the user oriented secondary camera of described picture pick-up device is followed the tracks of left/is moved right such as, user's head, and user's head is toward up/down, then the user oriented secondary camera of described picture pick-up device follow the tracks of upwards/lower mobile.
Optionally, the described movement locus direction of utilizing described user's eyeball, with described main camera in the corresponding movement of movement locus direction to described user's eyeball of the focal position of camera picture, can comprise: when the movement locus direction of described user's eyeball for left the time, then described that described main camera is mobile to the left or to the right at the focal position of camera picture; When the movement locus direction of described user's eyeball for to the right the time, then described with described main camera at the focal position of camera picture to the right or be moved to the left; When the movement locus direction of described user's eyeball for upwards the time, then described described main camera is moved up or down at the focal position of camera picture; When the movement locus direction of described user's eyeball when being downward, then described that described main camera is mobile downward or upward at the focal position of camera picture.
Said method embodiment technical scheme of the present invention has following beneficial effect: because the eyes of the user oriented camera track user of terminal, this existing proven technique, the embodiment of the invention is in the focusing starting stage, user's eyes can be noted the display screen of terminal usually, at this time focusing is arranged on the central authorities of picture, when user's sight line is left terminal display screen, the movement locus of user oriented camera track up user eyeball, eyeball is to left/right, then focus frame left/move right; Eyeball is to up/down, and then focus frame makes progress/lower the movement.The embodiment of the invention has reached and has reduced the required cost of focusing, and has shortened the technique effect of focusing required time, in addition, owing to utilize eyeball to focus, focusing more flexibly, convenient, and liberated both hands, especially concerning being more practical, convenient the handicapped personage of adversary.
As shown in Figure 2, be the picture pick-up device structural representation that a kind of user's of utilization of the embodiment of the invention eyes are focused, the picture pick-up device that the described user's of utilization eyes are focused comprises:
Track acquiring unit 22 is used for obtaining the described user's of the user oriented secondary camera track up of described picture pick-up device the movement locus direction of eyeball;
As shown in Figure 3; the picture pick-up device structural representation that utilizes user's eyes to focus for embodiment of the invention another kind; this picture pick-up device that utilizes user's eyes to focus not only comprises position acquisition unit 21, track acquiring unit 22 and the focus adjustment unit 23 among above-mentioned Fig. 2; can also comprise: processing unit 20; be used for when described user utilizes described picture pick-up device to take, the user oriented secondary camera of the main camera of described picture pick-up device and described picture pick-up device is worked simultaneously.
Optionally, described focus adjustment unit 23 can also be used in the focusing starting stage, the main camera of described picture pick-up device being positioned at the central authorities of described camera picture at the focal position of camera picture when described user utilizes described picture pick-up device to take.
Optionally, described track acquiring unit 22 can also be used for the action according to user's head, obtains the described user's of the user oriented secondary camera track up of described picture pick-up device the movement locus direction of eyeball.Toward left/right, then the user oriented secondary camera of described picture pick-up device is followed the tracks of left/is moved right such as, user's head, and user's head is toward up/down, then the user oriented secondary camera of described picture pick-up device follow the tracks of upwards/lower mobile.
Optionally, as shown in Figure 4, be embodiment of the invention focus adjustment unit structural representation, described focus adjustment unit 23 can comprise:
First focuses on adjusting module 231, be used for when the movement locus direction of described user's eyeball for left the time, then the focal position of described main camera at camera picture moved to the left or to the right;
Second focuses on adjusting module 232, be used for when the movement locus direction of described user's eyeball for to the right the time, then with described main camera at the focal position of camera picture to the right or be moved to the left;
The 3rd focuses on adjusting module 233, be used for when the movement locus direction of described user's eyeball when making progress, then described main camera is moved up or down at the focal position of camera picture;
The 4th focuses on adjusting module 234, is used for then the focal position of described main camera at camera picture being moved downward or upward when the movement locus direction of described user's eyeball when being downward.
The embodiment of the invention also provides a kind of portable terminal, includes the picture pick-up device that the above-mentioned user's of utilization eyes are focused.
Said apparatus embodiment technical scheme of the present invention has following beneficial effect: because adopt the position acquisition unit to obtain the main camera of picture pick-up device at the focal position of camera picture; The track acquiring unit obtains the described user's of the user oriented secondary camera track up of described picture pick-up device the movement locus direction of eyeball; Focus adjustment unit is utilized the movement locus direction of described user's eyeball, with described main camera in the focal position of the camera picture technological means to the corresponding movement of movement locus direction of described user's eyeball, reduce the required cost of focusing so reached, and shortened the technique effect of focusing required time, in addition, owing to utilize eyeball to focus, focusing more flexibly, conveniently, and both hands have been liberated, especially concerning being more practical, convenient the handicapped personage of adversary.
Those skilled in the art can also recognize the various illustrative components, blocks (illustrative logical block) that the embodiment of the invention is listed, the unit, and step can pass through electronic hardware, computer software, or both combinations realize.Be the clear replaceability (interchangeability) of showing hardware and software, above-mentioned various illustrative components (illustrative components), unit and step have been described their function generally.Such function is to realize depending on the designing requirement of specific application and whole system by hardware or software.Those skilled in the art can be for every kind of specific application, and can make ins all sorts of ways realizes described function, but this realization should not be understood to exceed the scope of embodiment of the invention protection.
Various illustrative logical block described in the embodiment of the invention, or the unit can pass through general processor, digital signal processor, special IC (ASIC), field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or the design of above-mentioned any combination realizes or operates described function.General processor can be microprocessor, and alternatively, this general processor also can be any traditional processor, controller, microcontroller or state machine.Processor also can realize by the combination of calculation element, for example digital signal processor and microprocessor, multi-microprocessor, Digital Signal Processor Core of one or more microprocessors associatings, or any other similarly configuration realize.
Method described in the embodiment of the invention or the step of algorithm can directly embed hardware, the software module of processor execution or the two combination.Software module can be stored in the storage medium of other arbitrary form in RAM storer, flash memory, ROM storer, eprom memory, eeprom memory, register, hard disk, moveable magnetic disc, CD-ROM or this area.Exemplarily, storage medium can be connected with processor so that processor can be from storage medium reading information, and can deposit write information to storage medium.Alternatively, storage medium can also be integrated in the processor.Processor and storage medium can be arranged among the ASIC, and ASIC can be arranged in the user terminal.Alternatively, processor and storage medium also can be arranged in the different parts in the user terminal.
In one or more exemplary designs, the described above-mentioned functions of the embodiment of the invention can realize in hardware, software, firmware or this three's combination in any.If realize in software, these functions can be stored on the medium with computer-readable, or are transmitted on the medium of computer-readable with one or more instructions or code form.The computer-readable medium comprises the computer storage medium and is convenient to so that allow computer program transfer to other local telecommunication media from a place.Storage medium can be the useable medium that any general or special computer can access.For example, such computer readable media can include but not limited to RAM, ROM, EEPROM, CD-ROM or other optical disc storage, disk storage or other magnetic storage device, or other anyly can be used for carrying or storage can be read by general or special computer or general or special processor the program code of form with instruction or data structure and other medium.In addition, any connection can suitably be defined as the computer-readable medium, for example, if software is by a concentric cable, optical fiber computer, twisted-pair feeder, Digital Subscriber Line (DSL) or also being comprised in the defined computer-readable medium with wireless way for transmittings such as infrared, wireless and microwave from a web-site, server or other remote resource.Described video disc (disk) and disk (disc) comprise Zip disk, radium-shine dish, CD, DVD, floppy disk and Blu-ray Disc, and disk is usually with the magnetic duplication data, and video disc carries out the optical reproduction data with laser usually.Above-mentioned combination also can be included in the computer-readable medium.
Above-described embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is the specific embodiment of the present invention; the protection domain that is not intended to limit the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. the method that the eyes that utilize the picture pick-up device user are focused is characterized in that, the method that the described eyes that utilize the picture pick-up device user are focused comprises:
Obtain the main camera of picture pick-up device at the focal position of camera picture;
Obtain the described user's of the user oriented secondary camera track up of described picture pick-up device the movement locus direction of eyeball;
Utilize the movement locus direction of described user's eyeball, with described main camera in the corresponding movement of movement locus direction to described user's eyeball of the focal position of camera picture.
2. the method for utilizing as claimed in claim 1 picture pick-up device user's eyes to focus is characterized in that, the method that the described eyes that utilize the picture pick-up device user are focused also comprises:
When described user utilized described picture pick-up device to take, the user oriented secondary camera of the main camera of described picture pick-up device and described picture pick-up device was worked simultaneously.
3. the method for utilizing as claimed in claim 1 picture pick-up device user's eyes to focus is characterized in that the described main camera of picture pick-up device that obtains comprises at the focal position of camera picture:
When described user utilized described picture pick-up device to take, in the focusing starting stage, the main camera of described picture pick-up device was positioned at the central authorities of described camera picture at the focal position of camera picture.
4. the method for utilizing as claimed in claim 1 picture pick-up device user's eyes to focus is characterized in that, the movement locus direction of the described described user's who obtains the user oriented secondary camera track up of described picture pick-up device eyeball comprises:
Also according to the action of user's head, obtain the described user's of the user oriented secondary camera track up of described picture pick-up device the movement locus direction of eyeball.
5. the method for utilizing as claimed in claim 1 picture pick-up device user's eyes to focus, it is characterized in that, the described movement locus direction of utilizing described user's eyeball in the corresponding movement of movement locus direction to described user's eyeball of the focal position of camera picture, comprises described main camera:
When the movement locus direction of described user's eyeball for left the time, then described that described main camera is mobile to the left or to the right at the focal position of camera picture;
When the movement locus direction of described user's eyeball for to the right the time, then described with described main camera at the focal position of camera picture to the right or be moved to the left;
When the movement locus direction of described user's eyeball for upwards the time, then described described main camera is moved up or down at the focal position of camera picture;
When the movement locus direction of described user's eyeball when being downward, then described that described main camera is mobile downward or upward at the focal position of camera picture.
6. picture pick-up device that the eyes that utilize the user are focused is characterized in that the picture pick-up device that the described user's of utilization eyes are focused comprises:
The position acquisition unit is used for obtaining the main camera of picture pick-up device at the focal position of camera picture;
The track acquiring unit is used for obtaining the described user's of the user oriented secondary camera track up of described picture pick-up device the movement locus direction of eyeball;
Focus adjustment unit is used for utilizing the movement locus direction of described user's eyeball, with described main camera in the corresponding movement of movement locus direction to described user's eyeball of the focal position of camera picture.
7. the picture pick-up device that utilizes as claimed in claim 6 user's eyes to focus is characterized in that the picture pick-up device that the described user's of utilization eyes are focused also comprises:
Processing unit is used for when described user utilizes described picture pick-up device to take, and the user oriented secondary camera of the main camera of described picture pick-up device and described picture pick-up device is worked simultaneously.
8. the picture pick-up device that utilizes as claimed in claim 6 user's eyes to focus is characterized in that,
Described focus adjustment unit also is used in the focusing starting stage, the main camera of described picture pick-up device being positioned at the central authorities of described camera picture at the focal position of camera picture when described user utilizes described picture pick-up device to take.
9. the picture pick-up device that utilizes as claimed in claim 6 user's eyes to focus; it is characterized in that; described track acquiring unit also is used for the action according to user's head, obtains the described user's of the user oriented secondary camera track up of described picture pick-up device the movement locus direction of eyeball.
10. the picture pick-up device that utilizes as claimed in claim 6 user's eyes to focus is characterized in that described focus adjustment unit comprises:
First focuses on adjusting module, be used for when the movement locus direction of described user's eyeball for left the time, then the focal position of described main camera at camera picture moved to the left or to the right;
Second focuses on adjusting module, be used for when the movement locus direction of described user's eyeball for to the right the time, then with described main camera at the focal position of camera picture to the right or be moved to the left;
The 3rd focuses on adjusting module, be used for when the movement locus direction of described user's eyeball when making progress, then described main camera is moved up or down at the focal position of camera picture;
The 4th focuses on adjusting module, is used for then the focal position of described main camera at camera picture being moved downward or upward when the movement locus direction of described user's eyeball when being downward.
11. a portable terminal includes the picture pick-up device that utilizes as described in each eyes of user to focus such as claim 6-10.
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Application publication date: 20130206 |