CN104253939A - Focusing position adjusting method and electronic device - Google Patents

Focusing position adjusting method and electronic device Download PDF

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Publication number
CN104253939A
CN104253939A CN 201310263412 CN201310263412A CN104253939A CN 104253939 A CN104253939 A CN 104253939A CN 201310263412 CN201310263412 CN 201310263412 CN 201310263412 A CN201310263412 A CN 201310263412A CN 104253939 A CN104253939 A CN 104253939A
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depth
image
lens
focus
value
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CN 201310263412
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Chinese (zh)
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庄哲纶
李运锦
曾家俊
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聚晶半导体股份有限公司
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Priority to CN 201310263412 priority Critical patent/CN104253939A/en
Publication of CN104253939A publication Critical patent/CN104253939A/en

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Abstract

The invention provides a focusing position adjusting method and an electronic device. The focusing position adjusting method includes based on a first image and a second image acquired through a first lens and a second lens respectively, acquiring a depth map; comparing a plurality of depth values contained by the depth map with depth of field scale to acquire a plurality of focusing distances; generating a full depth of field image based on a plurality of focusing images acquired by the first lens with the focusing distances; fuzzing a plurality of pixels outside the focusing position in the full depth of field image so as to acquire an adjusted image.

Description

调整对焦位置的方法及电子装置 And a method for adjusting the focus position of the electronic device

技术领域 FIELD

[0001] 本发明是有关于一种图像处理方法及装置,且特别是有关于一种调整对焦位置的方法及电子装置。 [0001] The present invention relates to an image processing method and apparatus, and more particularly relates to a method and an electronic device to adjust the focus position.

背景技术 Background technique

[0002] 随着光学技术的进步,可调整光圈、快门甚至可更换镜头的相机逐渐普及,相机的功能也趋于多样化。 [0002] With advances in optical technology, adjustable aperture, and even interchangeable lens shutter cameras increasing popularity of camera more diversified functions. 其中,在使用相机拍摄图像时,为了突显所拍摄图像图像中的主题,一般会采用所谓浅景深(shallow depth of field)的拍摄技巧,将相机透镜的焦距聚集到图像中的特定距离范围,使得此距离范围内的目标可以清楚成像,同时也使得此距离范围外的目标逐渐模糊。 Wherein, when a camera image, in order to highlight the subject image in the image captured, usually a so-called shallow depth of field (shallow depth of field) imaging technique, the focal length of the camera lens is gathered in a certain distance range in the image, such that targets in this distance can be clearly imaged, and also so that the target outside this range distance blurring. 所谓景深(D印th of field,D0F)是用来描述在空间中可以清楚成像的距离范围。 The so-called depth of field (D printing th of field, D0F) is used to describe the spatial distance can be clearly imaged.

[0003] 然而,一般相机镜头所能制造出的浅景深效果相当有限,若要获致较佳的浅景深效果,则需倚赖大孔径的镜头来加强远距离目标的模糊化,而让清楚成像的主题得以从背景中突显出来。 [0003] However, the general camera lens can be manufactured relatively shallow depth of field is limited to the preferred attainable shallow depth of field, you need to rely on large-aperture lenses to enhance the blurring of distant objects, and so clearly imaged theme to stand out from the background. 然而,大孔径镜头的体积庞大且价格昂价,并非一般消费型相机所能配备。 However, the volume of large aperture lenses huge and the price expensive price, not the average consumer can be equipped with a camera. 因此,如何利用较低阶的消费型相机来产生具有浅景深的图像,实为本领域技术所要解决的一大课题。 Therefore, how to take advantage of lower-order consumer camera to produce images with a shallow depth of field, real skilled to be solved a major issue.

发明内容 SUMMARY

[0004] 本发明提供一种调整对焦位置的方法及电子装置,利用图像后处理方式来重新调整对焦位置。 [0004] The present invention provides a method and electronic device for adjusting the focus position, the image processing mode to readjust the focus position.

[0005] 本发明的调整对焦位置的方法,用于电子装置。 The method of adjusting the focus position [0005] of the present invention, an electronic apparatus. 上述方法包括:依据第一镜头与第二镜头所分别获取的第一图像与第二图像,获得深度图;将深度图所涵盖的多个深度值与景深表进行比对,以获得多个对焦距离;依据由第一镜头以上述对焦距离所获取的多张对焦图像,产生全景深图像;以及于全景深图像中,针对对焦选取位置以外的多个像素进行模糊化处理,藉以获得调整图像。 Said method comprising: based on a first image and the second image of the first lens and the second lens are respectively obtained, to obtain a depth map; a plurality of depth table the depth value of the depth map covered for comparison, to obtain a plurality of focus distance; focus image based on a plurality of the first lens to the focusing distance acquired deep generate a panoramic image; and deep in the panoramic image, blurring processing for a plurality of selected locations of pixels other than the focus, thereby obtaining the image adjustment.

[0006] 在本发明的一实施例中,上述在产生全景深图像之后,可显示上述全景深图像,以接收使用者在全景深图像中进行选取的对焦选取位置。 [0006] In an embodiment of the present invention, after the above-described depth image generating panoramic, panoramic displays the depth image may be, for receiving user selected focus position selected depth in the panoramic image.

[0007] 在本发明的一实施例中,上述于全景深图像中,针对对焦选取位置以外的像素进行模糊化处理,藉以获得整图像的步骤中,可自深度图取得上述对焦选取位置对应的指定深度值,并且将各像素对应的深度值分别与指定深度值进行比对,藉以对各像素进行模糊化处理。 [0007] In an embodiment of the present invention, the above-described panoramic depth image, the blurring processing for the pixels other than the focus selected locations, thereby obtaining step of the entire image, available from the depth map to obtain the focusing select positions corresponding to value specified depth, and the depth values ​​corresponding to each pixel, respectively, for comparison with the value specified depth, thereby blurring processing for each pixel.

[0008] 在本发明的一实施例中,在将上述像素对应的深度值分别与指定深度值进行比对的步骤中,可依据各深度值与指定深度值的差异值,调整像素对应的模糊程度,并且依据模糊程度,对像素执行模糊化处理。 [0008] In an embodiment of the present invention, in the step of the pixel corresponding to the depth values ​​for comparison with the specified depth value may be based on the difference value of each depth value specified depth value, adjustment of the pixel corresponding to the Fuzzy degree, and performs blurring processing on the pixel basis blur.

[0009] 在本发明的一实施例中,在基于上述对焦图像产生全景深图像之后,可接收一模糊强度,并依据此模糊强度决定模糊程度的范围。 [0009] In an embodiment of the present invention, after generating a panoramic image based on the depth of focus image, a blur strength may be received, and based on this fuzzy blur intensity determination range.

[0010] 在本发明的一实施例中,上述依据第一镜头与第二镜头所分别获取的第一图像与第二图像,获得深度图的步骤中,通过第一镜头与第二镜头同时以一基准焦距分别获取第一图像与第二图像;计算第一图像与第二图像的水平位移值;以及以第一图像为基准,依据第一镜头与第二镜头之间的镜头距离、基准焦距与水平位移值而获得深度图。 Step [0010] In an embodiment of the present invention, the above-described first and second images according to the first lens and the second lens respectively acquired depth map obtained by the first lens and the second lens while acquiring a reference focal lengths of the first and second images; horizontal displacement value calculating a first image and the second image; and the first image as a reference, based on the lens distance between the first lens and the second lens, focal length and horizontal displacement values ​​obtained by the depth map.

[0011] 在本发明的一实施例中,上述景深表内建于电子装置中。 [0011] In an embodiment of the present invention, the above-described depth table built in the electronic device.

[0012] 本发明的电子装置,包括图像获取单元、存储单元以及处理单元。 [0012] The electronic device according to the present invention, includes an image acquisition unit, a storage unit and a processing unit. 图像获取单元包括第一镜头与第二镜头。 The image acquisition unit includes a first lens and a second lens. 存储单元存储图像获取单元所获取的图像。 The storage unit stores the image acquisition by the acquisition unit. 处理单元耦接至图像获取单元与存储单元,且执行一图像处理模块。 The processing unit is coupled to the image acquisition unit and a storage unit, and performs an image processing module. 图像处理模块包括:深度图获取模块,依据第一镜头与第二镜头所分别获取的第一图像与第二图像,获得深度图;比对模块,将深度图所涵盖的多个深度值与景深表进行比对,以获得多个对焦距离;全景深图像产生模块,依据由第一镜头以上述对焦距离所获取的多张对焦图像,产生全景深图像;以及对焦调整模块, 于全景深图像中,针对对焦选取位置以外的多个像素执行模糊化处理,藉以获得调整图像。 The image processing module comprises: a depth map obtaining module, according to the first and second images of the first lens and the second lens are respectively obtained, to obtain a depth map; matching module, covered depth map depth values ​​of depth comparison table to obtain a plurality of focus distances; panoramic depth image generating module, a plurality of in-focus image according to the first lens to the focusing distance acquired deep generate a panoramic image; and a focus adjustment module, the depth image in the panoramic , for the plurality of pixels other than the selected focus blur processing position, thereby obtaining image adjustment.

[0013] 在本发明的一实施例中,上述电子装置还包括:显示模块,显示全景深图像;以及输入模块,接收使用者在全景深图像中进行选取的对焦选取位置。 [0013] In an embodiment of the present invention, the electronic device further comprising: a display module displaying the panoramic depth image; and an input module that receives the user selected focus position selected depth in the panoramic image.

[0014] 在本发明的一实施例中,上述输入模块接收一模糊强度,使得对焦调整模块依据模糊强度决定模糊程度的范围。 [0014] In an embodiment of the present invention, the input module receives a fuzzy intensity, so that the focus adjusting module according to fuzzy blur intensity determination range.

[0015] 在本发明的一实施例中,上述对焦调整模块自深度图取得对焦选取位置对应的指定深度值,并且将各像素对应的深度值分别与指定深度值进行比对,以获得各深度值与指定深度值的差异值,以及基于差异值调整各像素对应的模糊程度,而依据模糊程度,对各像素执行模糊化处理。 [0015] In an embodiment of the present invention, the focusing adjustment module to obtain a specified depth value focus selected positions corresponding from the depth map, and the corresponding to each pixel depth values ​​for comparison with the specified depth value to obtain each depth difference value as the value of the specified depth, and adjusting the degree of blurring based on a difference value corresponding to each pixel, and based on the degree of blur, blur processing for each pixel.

[0016] 在本发明的一实施例中,上述第一镜头与第二镜头同时以一基准焦距分别获取第一图像与第二图像。 [0016] In an embodiment of the present invention, the first lens and the second lens while obtaining a focal length of the first and second images, respectively. 其中,上述深度图获取模块计算第一图像与第二图像的水平位移值,并且,以第一图像为基准,依据第一镜头与第二镜头之间的镜头距离、基准焦距与水平位移值而获得深度图。 Wherein the first depth map acquisition module calculates the horizontal displacement value image and the second image, and the first image as a reference, based on distance from the lens, focal length and the horizontal displacement value between the first lens and the second lens obtaining depth maps.

[0017] 基于上述,本发明利用图像后处理的方式来获得全景深图像,并于此全景深图像中重新调整对焦位置,使得所拍摄的图像得以具有浅景深的效果。 [0017] is obtained based on the above, the embodiment of the present invention is a panoramic image processing using depth image, the depth image and a panoramic thereto readjusted in-focus position, so that the image is captured with the effect of shallow depth of field. 据此,即便是不具有大光圈(large aperture)等高规格配备的电子装置,亦可利用本发明的方法来获得具有浅景深效果的图像。 Accordingly, even without having a large aperture (large aperture) with the contour of the electronic device specifications, can utilize the present invention a method to obtain an image having a shallow depth of field.

[0018] 为让本发明的上述特征和优点能更明显易懂,下文特举实施例,并配合附图作详细说明如下。 [0018] In order to make the above features and advantages of the invention more comprehensible, several embodiments accompanied with figures are described in detail below.

附图说明 BRIEF DESCRIPTION

[0019] 图1是依照本发明一实施例的电子装置的方块图; [0019] FIG. 1 is a block diagram of the electronic device according to an embodiment of the present invention, in accordance with;

[0020] 图2是依照本发明一实施例的调整对焦位置的方法流程图; [0020] FIG 2 is a flowchart of a method according to embodiments of the present invention to adjust the focus position;

[0021] 图3是依照本发明一实施例的计算深度值的示意图; [0021] FIG. 3 is a schematic diagram calculate depth values ​​according to an embodiment of the present invention, in accordance with;

[0022] 图4是依照本发明另一实施例的电子装置的方块图; [0022] FIG. 4 is a block diagram of an electronic device according to another embodiment of the present invention;

[0023] 图5是依照本发明一实施例的显示全景深图像的示意图; [0023] FIG. 5 is a schematic diagram displaying a dark image panorama embodiment of the present invention;

[0024] 图6是依照本发明一实施例所绘示的调整图像的示意图。 [0024] FIG. 6 is a schematic view of an image adjustment embodiment depicted in accordance with an embodiment of the present invention.

[0025] 附图标记说明: [0025] REFERENCE NUMERALS:

[0026] 10 :电子装置; [0026] 10: an electronic device;

[0027] 110:图像获取单元; [0027] 110: image acquisition means;

[0028] 111 :第一镜头; [0028] 111: a first lens;

[0029] 112:第二镜头; [0029] 112: a second lens;

[0030] 120 :处理单元; [0030] 120: processing unit;

[0031] 130 :存储单元; [0031] 130: storage unit;

[0032] 140:图像处理模块; [0032] 140: image processing module;

[0033] 141 :深度图获取模块; [0033] 141: depth map acquisition module;

[0034] 142 :比对模块; [0034] 142: comparison module;

[0035] 143 :全景深图像产生模块; [0035] 143: panoramic depth image generating module;

[0036] 144 :对焦调整模块; [0036] 144: Focus adjustment module;

[0037] 31 :物体; [0037] 31: an object;

[0038] 301 :基准线; [0038] 301: reference line;

[0039] 401 :景深表; [0039] 401: depth table;

[0040] 402:图像数据库; [0040] 402: image database;

[0041] 411:显示模块; [0041] 411: a display module;

[0042] 412 :输入模块; [0042] 412: an input module;

[0043] 50 :触控屏幕; [0043] 50: touch screen;

[0044] 501 :对焦选取位置; [0044] 501: Select focus position;

[0045] 510 :全景深图像; [0045] 510: panoramic depth image;

[0046] 520 :强度控制功能列; [0046] 520: control column strength;

[0047] 530 :手指; [0047] 530: finger;

[0048] 600 :调整图像; [0048] 600: Adjust the image;

[0049] b :镜头距离; [0049] b: distance from the lens;

[0050] d :水平位移值; [0050] d: horizontal displacement value;

[0051] f:基准焦距; [0051] f: focal length;

[0052] Z :深度值; [0052] Z: depth value;

[0053] S205〜S220 :调整对焦位置的方法各步骤。 [0053] S205~S220: method for adjusting the focus position of each step.

具体实施方式 Detailed ways

[0054] 本发明提出一种调整对焦位置的方法及电子装置,在拍摄图像后,利用影像图像后处理方式重新依据一对焦选取位置来产生一张重新对焦的调整影像图像。 [0054] The present invention provides a method and an electronic device for adjusting the focus position, in the captured image, the image processing using the image mode selection again based on a focus position to generate an adjusted image re-focus image. 为了使本发明之内容更为明了,以下特举实施例作为本发明确实能够据以实施的范例。 In order to make the present invention more apparent, the following examples of embodiment cited Patent indeed present invention accordingly embodiment of FIG.

[0055] 图1是依照本发明一实施例的电子装置的方块图。 [0055] FIG. 1 is a block diagram of an electronic device according to an embodiment of the present invention in accordance with the embodiment. 请参照图1,本实施例的电子装置10例如是手机、智能手机、个人数字助理(Personal Digital Assistant, PDA)、PDA手机、笔记本型电脑或平板电脑等,其包图像获取单元110、处理单元120以及存储单元130。 Referring to FIG 1, the present embodiment of the electronic device 10, for example, a mobile phone, a smart phone, a personal digital assistant (Personal Digital Assistant, PDA), PDA phone, a laptop computer or a tablet computer, which packets image acquisition unit 110, the processing unit 120 and a storage unit 130.

[0056] 图像获取单元110包括第一镜头111与第二镜头112,其用以获取图像。 [0056] The image acquisition unit 110 comprises a first lens 111 and the second lens 112 to acquire an image. 上述第一镜头111与第二镜头112例如是标准镜头、广角镜头、变焦镜头等。 The first lens 111 and the second lens 112, for example, a standard lens, wide angle lenses, zoom lenses and the like. 第一镜头111及第二镜头112其中之一为左镜头(用以拍摄左眼图像),其中另一为右镜头(用以拍摄右眼图像)。 One of the first lens 111 and second lens 112 which is the left lens (for capturing left eye image), wherein the other of the right lens (for capturing a right eye image). 另外,图像获取单元110还可包括感光元件以及光圈等,但不限于此。 Further, the image acquisition unit 110 may further include a photosensitive member and a diaphragm and the like, but is not limited thereto. 感光元件例如是电荷稱合元件(Charge Coupled Device, CO))、互补性氧化金属半导体(Complementary Metal-Oxide Semiconductor,CMOS)元件或其他元件。 Charge said photosensitive member, for example, engagement elements (Charge Coupled Device, CO)), complementary metal oxide semiconductor (Complementary Metal-Oxide Semiconductor, CMOS) element or other elements. 在此仅为举例说明,并不以此为限。 In this example only illustrative and not limited thereto.

[0057] 存储单元130例如是任意形式的固定式或可移动式随机存取存储器(Random Access Memory,RAM)、只读存储器(Read-Only Memory,ROM)、闪存(Flash memory)、硬盘或其他类似装置或这些装置的组合。 [0057] The storage unit 130 may be any form of fixed or removable random access memory (Random Access Memory, RAM), read-only memory (Read-Only Memory, ROM), flash memory (Flash memory), hard disk or other It means a combination of these devices or the like. 在本实施例中,存储单元130记录了可由处理单元120 执行的图像处理模块140。 In the present embodiment, the storage unit 130 records the image processing module 140 executed by the processing unit 120.

[0058] 处理单兀120例如是中央处理单兀(Central Processing Unit,CPU),或是其他可编程的一般用途或特殊用途的微处理器(Microprocessor)、数字信号处理器(Digital Signal Processor,DSP)、可编程控制器、专用集成电路(Application Specific Integrated Circuits,ASIC)、可编程逻辑装置(Programmable Logic Device,PLD)或其他类似装置或这些装置的组合。 [0058] The processing unit 120 Wu Wu, for example, a central processing unit (Central Processing Unit, CPU), or other programmable general purpose or special purpose microprocessor (Microprocessor), a digital signal processor (Digital Signal Processor, DSP ), programmable controllers, application specific integrated circuits (Application Specific Integrated Circuits, ASIC), programmable logic devices (programmable logic device, PLD), or other similar devices or combinations of these devices. 处理单元120耦接至图像获取单元110及存储单元130,而可存取并执行记录在存储单元130中的图像处理模块140,以执行调整对焦位置的功能。 Processing unit 120 is coupled to the image acquisition unit 110 and a storage unit 130, and execute access to and recorded in the storage unit 130 of image processing module 140 to perform the functions to adjust the focus position.

[0059] 图像处理模块140例如是由电脑程序语言所编写的程序片段,上述程序片段存储于存储单元130中并且包括多个指令,通过处理单元120来执行上述程序片段。 [0059] The image processing module 140 is a program fragment consisting of, for example, a computer program written in the language, the program sequences stored in the storage unit 130 and including a plurality of instructions, a program to execute the above-described fragments by the processing unit 120. 另外,在其他实施例中,上述图像处理模块140中亦可以是由一或多个电路所组成的硬件组件,其耦接至处理单元120,并且由处理单元120来驱动,在此并不限制。 Further, in other embodiments, the image processing module 140 may also be a hardware component or a circuit consisting of a plurality of which is coupled to the processing unit 120, and is driven by the processing unit 120, which is not limited . 在此,图像处理模块140包括深度图获取模块141、比对模块142、全景深图像产生模块143以及对焦调整模块144。 Here, the image processing module 140 includes a depth map acquisition module 141, module 143 generates 142 than the panoramic depth image and a focus adjustment module 144 module. 以下即举实施例说明电子装置10执行调整对焦位置的详细步骤。 For detailed i.e., the electronic device 10 illustrate steps performed to adjust the focus position of the embodiment.

[0060] 图2是依照本发明一实施例的调整对焦位置的方法流程图。 [0060] FIG 2 is a flowchart of a method for adjusting the focus position according to an embodiment of the present invention. 本实施例的方法适用于图1的电子装置10,以下即搭配电子装置10中的各项元件说明本发明的调整对焦位置方法的详细步骤。 The method of the present embodiment is applied to the electronic device 10 of Figure 1, i.e. with the electronic device 10 is described in detail the elements to adjust the focus position of the step of the method of the present invention.

[0061] 首先,在步骤S205中,深度图(cbpth map)获取模块141依据第一镜头111与第二镜头112所分别获取的第一图像与第二图像,获得深度图。 [0061] First, in step S205, the depth map (cbpth map) acquisition module 141 according to the first lens 111 and the first and second images of the second lens 112 are acquired to obtain the depth map. 上述深度图是用以记录自第一镜头111与第二镜头112的基准线(base line)至所观测的物体之间的深度值。 FIG aforementioned depth is a depth value between the first lens reference line (base line) 111 and the second lens 112 to the object for recording from the observations. 在此, 以第一图像为基准,计算第一图像中各像素的深度值。 Here, the first image is calculated based on a depth value of each pixel in the first image.

[0062] 具体而言,通过第一镜头111与第二镜头112同时以相同的参数分别获取第一图像与第二图像。 [0062] Specifically, the first lens 111 and the second lens 112 while obtaining the same parameters of the first and second images, respectively. 上述参数包括基准焦距、光圈、快门、白平衡等,本实施例并不设限。 These parameters include focal length, aperture, shutter speed, white balance, etc., the present embodiment is not set limits. 接着,深度图获取模块141计算第一图像与第二图像的水平位移值。 Next, the depth map acquisition module 141 calculates a first horizontal displacement value image and the second image. 其中,越靠近第一镜头111及第二镜头112的物体,其在第一图像与第二图像中的水平位移值会越大,而越远第一镜头111 及第二镜头112的物体,其在第一图像与第二图像中的水平位移值会越小。 Wherein the first lens closer to the object lens 111 and the second 112, the horizontal displacement value of the first image and the second image will be larger, the farther the first object lens 111 and the second lens 112, which horizontal displacement value of the first image and the second image will be smaller. 然后,深度图获取模块141以第一图像为基准,依据第一镜头111与第二镜头112之间的镜头距离、基准焦距与水平位移值而获得深度图。 Then, the depth map module 141 to obtain a first image as a reference, based on the distance 112 between the lens 111, the focal length of the first lens and the horizontal displacement value to obtain a second lens depth FIG.

[0063] 举例来说,图3是依照本发明一实施例的计算深度值的示意图。 [0063] For example, FIG. 3 is a schematic view of the depth values ​​calculated according to an embodiment of the present invention. FIG. 于图3中,连接第一镜头111与第二镜头112的直线一般称之为基准线301。 In Figure 3, a straight line connecting a first lens 111 and the second lens 112 is generally called a reference line 301. 由于第一镜头111与第二镜头112是水平方向的位移,因此物体31在第一图像和第二图像会在水平方向上具有一水平位移值d,也就是像差(disparity)。 Since the first lens 111 and the second lens 112 is displaced in the horizontal direction, so the object 31 may have a horizontal displacement value d in the horizontal direction of the first image and the second image, that is, the aberration (disparity). 在本实施例中,假设第一镜头111与第二镜头112的基准焦距为f,且第一镜头111与第二镜头112之间的镜头距离为b,利用公式Z= (b X f)/d即可计算出深度值Z,进而获得深度图。 In the present embodiment, it assumed that the first lens 111 and the second reference focal length of lens 112 is f, and the first lens 111 and the lens distance between the second lens 112 is b, using the formula Z = (b X f) / d can be calculated depth value Z, and further obtain the depth map.

[0064] 接着,在步骤S210中,比对模块142将深度图所涵盖的多个深度值与景深表进行比对,以获得多个对焦距离。 [0064] Next, in step S210, the comparison module 142 and a plurality of depth table the depth value of the depth map covered for comparison, to obtain a plurality of focus distance. 在此,景深表中记录了多个对焦距离,以及各对焦距离对应的景深范围。 Here, the depth of field of the plurality of records in the table focusing distance and depth of field corresponding to each focus distance. 由深度图以及景深表可以得知所拍摄的场景需要几张图像才能包含此场景所有的景深,同时也能决定这几张图像的对焦距离。 By the depth map and the depth of field table can be learned captured several images of the scene need to include this scene all the depth of field, while also focusing distance of this decision a few images. 景深表例如表1所示,一个对焦距离具有对应的景深范围。 Table shown in Table 1, for example, the depth of field, depth of field having a focusing distance corresponds. 而表1的景深表仅为举例说明,实际应用并不以此为限。 Table 1 and Table depth way of example only, practical application is not limited thereto.

[0065] [0065]

[0066] 表1 [0066] TABLE 1

Figure CN104253939AD00081

[0067] 之后,在步骤S215中,全景深图像产生模块143依据由第一镜头111 (因深度图是以第一图像为基准而计算出)以上述对焦距离所获取的多张对焦图像,产生全景深(All-in-Focus)图像。 After [0067] In step S215, the panorama image generation module 143 according to depth (due to a first depth map is calculated as a reference image) a plurality of in-focus image to the focusing distance acquired, generated by the first lens 111 panoramic deep (All-in-Focus) image. 上述全景深图像为一张从前景到后景都清晰的照片。 The above image is a panorama of deep from the foreground to the background are clear photos. 例如,在步骤S210获得N个对焦距离F_1〜F_N,S卩,对焦距离F_1〜F_N的景深范围包括深度表全部所记录的深度值。 For example, the N obtained at step S210 focus distance F_1~F_N, S Jie, depth of field focusing distance comprises a depth value of the depth F_1~F_N table of all recorded. 接着,利用第一镜头111以对焦距离Fj来获取对焦图像1_1、以对焦距离F_2来获取对焦图像1_2···、以对焦距离F_N来获取对焦图像I_N。 Next, the first focusing lens 111 to acquire focus image distance Fj 1_1 to acquire focus distance F_2 1_2 ··· focus image to acquire focus distance F_N focus image I_N. 然后,全景深图像产生模块143经由全景深算法而由对焦图像1_1〜I_N来产生一张包含此场景所有景深的全景深图像。 Then, a panoramic image generation module 143 and depth to generate a panoramic image of a deep depth of field that contains all the scene of a deep focus image 1_1~I_N via panorama algorithms.

[0068] 然后,在步骤S220中,对焦调整模块144于全景深图像中,针对一对焦选取位置以外的多个像素执行模糊化处理,藉以获得调整图像。 [0068] Then, in step S220, the focus adjustment module 144 in the panoramic image is dark, except for a plurality of pixels selected focus blur processing position, thereby obtaining image adjustment. 也就是说,对全景深图像重新进行对焦处理,以改变对焦位置。 That is, the panoramic image deep re-focusing process to change the focus position. 例如,在产生全景深图像之后,电子装置10显示全景深图像,以接收使用者在全景深图像中进行选取的对焦选取位置,之后将对焦选取位置以外的像素执行模糊化处理。 For example, after the generation of the panoramic depth image, the electronic device 10 to display the panorama image depth, to receive the user selected focus position selected depth in the panoramic image after the blur processing of the pixels other than the selected focus position. 底下再举一实施例来说明。 As another embodiment, a below described.

[0069] 图4是依照本发明另一实施例的电子装置的方块图。 [0069] FIG. 4 is a block diagram of the electronic device according to another embodiment of the present invention. 本实施例进一步说明电子装置10中的其他构件。 The present embodiment further illustrated in the other member of the electronic device 10. 请参照图4,存储单元130还包括景深表401与图像数据库402。 Referring to FIG. 4, storage unit 130 further comprises a depth of the table 401 and the image database 402. 艮口, 景深表401内建于电子装置10。 Gen mouth, the depth of field table 401 built in the electronic device 10. 图像数据库402用以存储图像获取单元110所获取的图像。 The image database 402 to store the image acquisition unit 110 acquired. 另外,电子装置10还包括显示模块411与输入模块412。 Further, the electronic device 10 further includes a display module 411 and the input module 412. 显示模块411例如为显示器, 其用以显示全景深图像。 The display module 411, for example, a display for displaying depth image panorama. 输入模块412例如为按键、触控面板或传声器等,其用以接收使用者在全景深图像中进行选取的对焦选取位置。 The input module 412, for example, like a key, a touch panel or a microphone to receive a user selection of the position of the selected focus depth in the panoramic image.

[0070] 另外,显示模块411与输入模块412亦可整合而成为一个触控屏幕,于触控屏幕中显示全景深图像,并由使用者在触控屏幕中选取欲进行对焦的对焦选取位置。 [0070] Further, the input module 411 and display module 412 may be integrated into a touch screen, displaying the panoramic image in the deep touch screen by the user to select the focus position to be selected in the focus of the touch screen. 底下举一实施例来说明。 For an embodiment below will be described.

[0071] 图5是依照本发明一实施例的显示全景深图像的示意图。 [0071] FIG. 5 is a schematic diagram displaying a dark image panorama embodiment of the present invention. 请参照图5,在触控屏幕50中显示全景深图像510,而全景深图像510的获得可参照步骤S205〜S215的说明。 Referring to FIG. 5, displaying the panoramic image 510 in the depth of the touch screen 50, to obtain the depth image 510 may be a panoramic described with reference to steps S205~S215. 据此,使用者便能够在触控屏幕50上选取想要对焦的位置。 Accordingly, the user will be able to choose where you want to focus on the touch screen 50. 另外,在本实施例中,在触控屏幕50显示全景深图像510的同时,显示一强度控制功能列520,以方便使用者同时选择背景的模糊强度,而依据所选择的模糊强度来决定背景的模糊程度的范围。 Further, in the present embodiment, the touch screen display 50 while the depth of the panoramic image 510, a display control function of the intensity of the column 520 to facilitate the user to select a background blur strength simultaneously, and the selected intensity is determined based on the fuzzy background the scope of blur. 此强度控制功能列520 例如是用以模拟光圈大小变化的效果。 This intensity control function, for example, column 520 is used to simulate the effect of changes in the size of the aperture.

[0072] 如图5所示,使用者选择对焦在最前方的轮胎,而以手指530点选对焦选取位置501。 As shown in [0072] FIG 5, the user selects the focus at the forefront of the tire, and to select the focus position of the finger 530 Tap 501. 输入模块412在接收到对焦选取位置501之后,由对焦调整模块144自深度图取得对焦选取位置501对应的深度值,即指定深度接着,将各像素对应的深度值分别与指定深度值D_pr eserve进行比对,以获得各深度值与指定深度值的差异值,并且基于差异值来调整各像素对应的模糊程度。 The input module 412, after receiving focus selected locations 501, 144 from the depth map acquired depth value of the focus selection position 501 corresponding to the focus adjustment module, i.e., specified depth Next, each pixel corresponding to a depth values ​​with a specified depth value D_pr eserve comparison, to obtain the difference value of each depth value specified depth value, and adjusting the degree of blurring corresponding to each pixel based on the difference value. 进而,对焦调整模块144依据模糊程度对各像素执行模糊化处理。 Further, focus adjustment module 144 according to the degree of blurring of each pixel blur processing pair. 上述模糊化处理可以是高斯滤波器模糊(Gaussian filter blur)算法或等向滤波器模糊(Bilateral filter blur)算法等。 The blurring processing may be fuzzy Gaussian filter (Gaussian filter blur) algorithm or the like to blur filter (Bilateral filter blur) algorithm.

[0073] 例如,深度值与指定深度值D_preserve相同的像素不进行模糊化处理,而深度值与指定深度值D_preserve不同的像素则会依据其深度值与指定深度值D_preserve之间的差异值来决定。 [0073] For example, the same pixel depth value with the specified value D_preserve depth blurring process is not performed, and the depth value of the specified pixel depth value D_preserve different values ​​will be based on the difference between the depth value and the depth value specified to determine D_preserve . 例如,依据各深度值与指定深度值的差异值,调整各像素对应的模糊程度, 并依据模糊程度,对各像素执行模糊化处理。 For example, according to the difference value of each depth value specified depth value, adjusting the degree of blurring corresponding to each pixel, and based on the degree of blurring is performed on each pixel blurring processing. 差异值越大代表离对焦平面越远,因此模糊程度越大;相反的,差异值越小代表离对焦平面越近,因此模糊程度越小。 The larger the difference between the representative value of the focal plane farther, and therefore the greater the degree of blur; the contrary, the smaller the difference value representative of the closer to the focal plane, so the smaller the degree of blur.

[0074] 在根据对焦选取位置501与强度控制功能列520所选择的模糊强度,即可获得如图6所示的调整图像600。 [0074] In the focus blur strength selected locations 501 and 520 control the intensity of the selected, adjusted image 600 can be obtained as shown in FIG. 6. 图6是依照本发明一实施例所绘示的调整图像的示意图。 FIG 6 is a schematic view of an image adjustment embodiment depicted in accordance with an embodiment of the present invention. 在图6中为了方便说明仅以实线描绘来表示前景,即,与对焦选取位置501具有相同深度值的区域(最前方的轮胎),且以虚线描绘来表示背景,并未在图6中表现出模糊程度。 In FIG. 6 for convenience of description only solid lines to represent the foreground, i.e., the position of the selected focus area 501 has (most front tires) of the same depth values, and the dashed lines represent the background depiction, not in FIG. 6 in exhibit blur. 然,可以理解的是,于实际图像的表现中,背景区域是会随着差异值的不同而有不同的模糊程度。 However, it is understood that, in the performance of the actual image, the background area will vary from difference values ​​have different degree of blurring. 另外, 在显示调整图像600之后,仍可通过强度控制功能列520来调整模糊强度。 In the display image 600 after the adjustment, the column may still function 520 to adjust the intensity of the intensity of fuzzy control.

[0075] 综上所述,在上述实施例中利用两个镜头来获得左、右眼图像,藉此来获得一深度图,并通过深度图来产生一全景深图像,再以全景深图像来产生一张重新对焦的调整图像。 [0075] In summary, in the above embodiment using two lenses to obtain left and right eye images, thereby obtaining a depth map, and generating a panoramic image by deep depth map, and the depth image to panoramic produce a re-adjust the image focus. 据此,利用图像后处理方式即可让使用者重新选择对焦的位置,并且还可供使用者来调整在非对焦选取位置以外区域的模糊强度,使得调整图像能够获得大光圈的效果。 Accordingly, after the image processing mode allows the user to re-select the focus position, and also for the user to adjust the intensity of blur in the region other than the non-selected focus position, so that the image can be adjusted to obtain the effect of a large aperture.

[0076] 最后应说明的是:以上各实施例仅用以说明本发明的技术方案,而非对其限制; 尽管参照前述各实施例对本发明进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分或者全部技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。 [0076] Finally, it should be noted that: the above embodiments only describe the technical solutions in embodiments of the present invention, rather than limiting;. Although the embodiments of the present invention has been described in detail, those of ordinary skill in the art should appreciated: it still may be made to the technical solutions described embodiments modifications, or to some or all of the technical features equivalents; as such modifications or replacements do not cause the essence of corresponding technical solutions to depart from embodiments of the present invention range of technical solutions.

Claims (12)

1. 一种调整对焦位置的方法,用于电子装置,其特征在于,所述方法包括: 依据第一镜头与第二镜头所分别获取的第一图像与第二图像,获得深度图; 将所述深度图所涵盖的多个深度值与景深表进行比对,以获得多个对焦距离; 依据由所述第一镜头以所述对焦距离所获取的多张对焦图像,产生全景深图像;以及在所述全景深图像中,针对对焦选取位置以外的多个像素进行模糊化处理,藉以获得调整图像。 A method for adjusting a focus position for an electronic device, wherein, said method comprising: a first and second images respectively acquired according to the first lens and the second lens, the depth map is obtained; The a plurality of depth values ​​of depth of said depth map table covered for comparison, to obtain a plurality of focus distances; based on a plurality of in-focus image by the first lens to the focusing distance acquired, deep generate a panoramic image; and deep in the panoramic image, blurring processing for a plurality of selected locations of pixels other than the focus, thereby obtaining the image adjustment.
2. 根据权利要求1所述的方法,其特征在于,在产生所述全景深图像的步骤之后,还包括: 显示所述全景深图像,以接收使用者在所述全景深图像中进行选取的所述对焦选取位置。 2. The method according to claim 1, wherein, after the step of generating the depth image panorama, further comprising: displaying the panoramic image depth, to receive a user selection from the depth of the panoramic image the selected focus position.
3. 根据权利要求1所述的方法,其特征在于,在所述全景深图像中,针对所述对焦选取位置以外的所述像素进行所述模糊化处理,藉以获得所述调整图像的步骤包括: 自所述深度图取得所述对焦选取位置对应的指定深度值;以及将所述像素对应的所述深度值分别与所述指定深度值进行比对,藉以对所述像素进行所述模糊化处理。 3. The method according to claim 1, wherein, in the panoramic image in depth, for the blurring processing for the pixels other than the selected focus position, thereby obtaining image comprises the step of adjusting : the depth map acquired from the focus position corresponding to a specified depth value selected; and the depth values ​​of the pixels respectively corresponding to the specified ratio of the depth value, thereby performing the blurring of the pixel deal with.
4. 根据权利要求3所述的方法,其特征在于,将所述像素对应的所述深度值分别与所述指定深度值进行比对的步骤包括: 依据每一所述深度值与所述指定深度值的差异值,调整每一所述像素对应的模糊程度;以及依据所述模糊程度,对每一所述像素执行所述模糊化处理。 4. The method according to claim 3, characterized in that the depth values ​​of the pixels respectively corresponding to the specified depth value comparison step comprises: specifying the value according to the depth of each the difference value of the depth values ​​corresponding to each pixel to adjust the degree of blurring; and according to the degree of blurring on each pixel of the execution of the blurring processing.
5. 根据权利要求4所述的方法,其特征在于,在基于所述对焦图像产生所述全景深图像的步骤之后,还包括: 接收模糊强度;以及依据所述模糊强度决定所述模糊程度的范围。 5. The method as claimed in claim 4, wherein, after the step of generating the panoramic image based on the depth of focus image, further comprising: receiving a fuzzy intensity; and determined according to the intensity of the blur degree of fuzz range.
6. 根据权利要求1所述的方法,其特征在于,依据所述第一镜头与所述第二镜头所分别获取的所述第一图像与所述第二图像,获得所述深度图的步骤包括: 通过所述第一镜头与所述第二镜头同时以基准焦距分别获取所述第一图像与所述第二图像; 计算所述第一图像与所述第二图像的水平位移值;以及以所述第一图像为基准,依据所述第一镜头与所述第二镜头之间的镜头距离、所述基准焦距与所述水平位移值而获得所述深度图。 6. The method according to claim 1, characterized in that the respectively acquired according to the first lens and the second lens of the first image and the second image, the step of obtaining the depth map comprising: simultaneously acquired by the focal length of the first lens and the second lens are respectively the first image and the second image; calculating a horizontal displacement value of the first image and the second image; in the first image as a reference, based on the lens between the first lens and the second lens distance, the focal length of the horizontal displacement value to obtain the depth map.
7. 根据权利要求1所述的方法,其特征在于,所述景深表内建于所述电子装置中。 7. The method according to claim 1, wherein the depth of the table is built in the electronic device.
8. -种电子装置,其特征在于,包括: 一深度图获取模块,依据第一镜头与第二镜头所分别获取的一第一图像与一第二图像,获得一深度图; 一比对模块,将所述深度图所涵盖的多个深度值与景深表进行比对,以获得多个对焦距离; 一全景深图像产生模块,依据由所述第一镜头以所述对焦距离所获取的多张对焦图像,产生全景深图像;以及一对焦调整模块,于所述全景深图像中,针对对焦选取位置以外的多个像素执行模糊化处理,藉以获得调整图像。 8. - electronic device, characterized by comprising: a depth map acquisition module, according to a first image of the first lens and the second lens respectively and a second acquired image, a depth map is obtained; a comparison module the depth values ​​of the depth map and the depth of field covered comparison table to obtain a plurality of focus distances; a panoramic depth image generation module, by the first lens according to the acquired plurality focusing distance Zhang focus image, to generate a panoramic depth image; and a focus adjustment module, on the panoramic image depth, blur processing for the plurality of pixels other than the selected focus position, thereby obtaining image adjustment.
9. 根据权利要求8所述的电子装置,其特征在于,所述电子装置还包括: 显示模块,显示所述全景深图像;以及输入模块,接收使用者在所述全景深图像中进行选取的所述对焦选取位置。 The electronic device according to claim 8, wherein the electronic device further comprising: a display module displaying the panoramic image depth; and an input module that receives a user selection from the depth of the panoramic image the selected focus position.
10. 根据权利要求9所述的电子装置,其特征在于,所述输入模块接收模糊强度,使得所述对焦调整模块依据所述模糊强度决定模糊程度的范围。 10. The electronic device of claim 9, wherein the input module receives the blur strength, so that the focus adjustment module according to the fuzzy blur degree intensity determination range.
11. 根据权利要求10所述的电子装置,其特征在于,所述对焦调整模块自所述深度图取得所述对焦选取位置对应的指定深度值,并且将所述像素对应的所述深度值分别与所述指定深度值进行比对,以获得每一所述深度值与所述指定深度值的差异值,以及基于所述差异值调整每一所述像素对应的所述模糊程度,而依据所述模糊程度,对每一所述像素执行所述模糊化处理。 11. The electronic device of claim 10, wherein said focus adjustment module acquired from the depth map value of the selected focus position corresponding to a specified depth, and the depth values ​​of the pixels corresponding to each value with the specified depth comparison, to obtain the depth value of each difference value to the specified depth value, and adjusting the degree of blurring of each of said pixel values ​​corresponding to the difference based on the basis of the said degree of blurring on each pixel of the execution of the blurring processing.
12. 根据权利要求8所述的电子装置,其特征在于所述第一镜头与所述第二镜头同时以基准焦距分别获取所述第一图像与所述第二图像; 其中,所述深度图获取模块计算所述第一图像与所述第二图像的水平位移值,并且,以所述第一图像为基准,依据所述第一镜头与所述第二镜头之间的镜头距离、所述基准焦距与所述水平位移值而获得所述深度图。 12. The electronic device of claim 8, wherein said first lens and the second lens focal length while acquiring the first image and the second image, respectively; wherein the depth map obtaining module calculates the horizontal displacement value of the first image and the second image, and the first image is a reference, based on the distance between the lens of the first lens and the second lens, the a reference focal length of the horizontal displacement value of the depth map is obtained.
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