WO2019056527A1 - 一种拍摄方法及装置 - Google Patents

一种拍摄方法及装置 Download PDF

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Publication number
WO2019056527A1
WO2019056527A1 PCT/CN2017/110262 CN2017110262W WO2019056527A1 WO 2019056527 A1 WO2019056527 A1 WO 2019056527A1 CN 2017110262 W CN2017110262 W CN 2017110262W WO 2019056527 A1 WO2019056527 A1 WO 2019056527A1
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Prior art keywords
area
imaged
partial
image
shooting
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PCT/CN2017/110262
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English (en)
French (fr)
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索传奇
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华勤通讯技术有限公司
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Publication of WO2019056527A1 publication Critical patent/WO2019056527A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T3/00—Geometric image transformations in the plane of the image
    • G06T3/14—Transformations for image registration, e.g. adjusting or mapping for alignment of images
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T3/00—Geometric image transformations in the plane of the image
    • G06T3/40—Scaling of whole images or parts thereof, e.g. expanding or contracting
    • G06T3/4038—Image mosaicing, e.g. composing plane images from plane sub-images
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/50—Image enhancement or restoration using two or more images, e.g. averaging or subtraction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/67—Focus control based on electronic image sensor signals
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20212—Image combination

Definitions

  • the present invention relates to the field of electronic technologies, and in particular, to a photographing method and apparatus.
  • the image is subjected to background blurring, auxiliary focusing, and the like to obtain a final captured image; or by taking multiple photos for fusion to obtain a final captured image;
  • the captured image obtained in the prior art is enlarged to a certain extent, the problem of image blurring may occur.
  • the present invention provides a photographing method and apparatus for solving the problem that image blurring occurs after the captured image in the prior art is enlarged to a certain extent.
  • An embodiment of the present invention provides a photographing method, including: determining attribute information of an area to be imaged when receiving a photographing instruction;
  • Determining an image to be imaged corresponding to the area to be imaged is determined according to the N partial images.
  • the area to be photographed is divided into blocks, and each sub-area is photographed in focus, so that each sub-area has higher resolution and more image information, and then each sub-area is synthesized to obtain a photograph.
  • the image, the captured image has high resolution and more image information, and after the captured image is enlarged to a certain extent, the image information can still be clearly displayed to avoid the problem of blurring of the image.
  • the second camera For each partial shooting area, the second camera is called to perform shooting, and a partial image corresponding to the partial shooting area is acquired.
  • the terminal in the prior art since the terminal in the prior art usually has a dual camera, and in order to expand the range of the global image, the first camera is used to capture the global image, and the second camera is used to acquire the partial image.
  • the acquiring attribute information of the area to be imaged from the global image includes:
  • Determining N partial shooting regions according to the attribute information of the area to be imaged including:
  • the area to be imaged is divided into N partial shot areas according to edge information of the area to be imaged and a feature vector.
  • the edge information of the target in the image to be imaged and the feature vector are determined according to the acquired optical information of the region to be imaged, and the region to be imaged is divided into a plurality of partial regions according to the edge information and the feature vector.
  • the determining the image to be imaged corresponding to the image to be imaged according to the N partial images includes:
  • the adjacent partial images are registered according to the matched feature point pairs.
  • feature point pairs having the same feature in the N partial images are determined, and N partial images are stitched and registered by the feature point pairs.
  • the first camera is a wide-angle camera
  • the second camera is a telephoto camera
  • the wide-angle camera can capture a wider area, that is, can acquire a larger range of images to be imaged, and the principle of using the telephoto camera to focus multiple times can focus and image each partial image.
  • the invention also provides a photographing device comprising:
  • An attribute information determining unit configured to acquire attribute information of an area to be imaged when receiving a shooting instruction
  • a region dividing unit configured to determine N partial shooting regions according to attribute information of the area to be imaged
  • a partial image determining unit configured to acquire a partial image corresponding to the partial shooting area for each partial shooting area
  • an imaging unit configured to determine, according to the N partial images, an image to be imaged corresponding to the image to be imaged.
  • the area to be photographed is divided into blocks, and each sub-area is photographed in focus, so that each sub-area has higher resolution and more image information, and then each sub-area is synthesized to obtain a photograph.
  • the image, the captured image has high resolution and more image information, and after the captured image is enlarged to a certain extent, the image information can still be clearly displayed to avoid the problem of blurring of the image.
  • attribute information determining unit is specifically configured to:
  • the partial image determining unit is specifically configured to:
  • the second camera For each partial shooting area, the second camera is called to perform shooting, and a partial image corresponding to the partial shooting area is acquired.
  • attribute information determining unit is specifically configured to:
  • the area dividing unit is specifically configured to:
  • the area to be imaged is divided into N partial shot areas according to edge information of the area to be imaged and a feature vector.
  • the imaging unit is specifically configured to:
  • the adjacent partial images are registered according to the matched feature point pairs.
  • the embodiment of the invention further provides a photographing device, comprising:
  • a memory for storing program instructions
  • a processor configured to invoke a program instruction stored in the memory, and execute the method described in any one of the above according to the obtained program.
  • Embodiments of the present invention also provide a non-transitory computer readable storage medium storing computer instructions for causing the computer to perform any of the methods described above.
  • Embodiments of the present invention provide a computer program product, the computer program product comprising a computing program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions, when the program instructions are executed by a computer, Having the computer perform any of the methods described above.
  • the image to be imaged is determined by N partial images, if the number of pixel information included in each partial image of the N partial images is M, the amount of pixel information of the image to be imaged is less than M*N. However, compared with only M in the prior art, the amount of pixel information of the image to be imaged is increased. When the user needs to compress, only part of the pixel letter is reduced in the image to be imaged. Therefore, in the embodiment of the present invention, after the image to be imaged is compressed, it still has more pixel information than the imaged image in the prior art, so that after the enlargement, the phenomenon of mosaic does not occur.
  • FIG. 1 is a schematic flowchart diagram of a photographing method according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a partial image according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic diagram of a method for determining a partial image according to an embodiment of the present invention.
  • FIG. 6 is a schematic flowchart diagram of a photographing method according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of an image capturing apparatus according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a photographing apparatus according to an embodiment of the present invention.
  • the invention provides a photographing method, as shown in FIG. 1, comprising:
  • Step 101 Acquire attribute information of an area to be imaged when receiving a shooting instruction
  • Step 102 Determine N partial shooting areas according to attribute information of the area to be imaged
  • Step 103 Acquire a partial map corresponding to the partial shooting area for each partial shooting area image
  • Step 104 Determine an image to be imaged corresponding to the area to be imaged according to the N partial images.
  • the terminal that receives the shooting instruction refers to all terminal devices having a camera, such as a mobile phone, an IPAD, and the like.
  • the terminal when the terminal receives the shooting instruction, that is, when the user performs the photographing by using the terminal, the user first determines the attribute information of the area to be imaged, and divides the area to be imaged into multiple parts according to the attribute information of the area to be imaged. The shooting area is focused on the partial area for each partial shooting area, and then the imaged partial image is stitched to determine the image to be imaged.
  • the pixel of the terminal camera is 16 million, and the image to be imaged is obtained as the shooting range of the camera.
  • the shooting range of the camera is the image of the image seen by the user on the terminal screen.
  • the pixel improves the pixel quality in the image to be imaged compared to the 16 million pixel information of the image to be imaged in the prior art, and after the image to be imaged is enlarged, clear pixel information can still be obtained.
  • the terminal in the prior art generally includes two cameras
  • two cameras may be called to cooperate to complete the embodiment of the present invention.
  • step 101 when receiving the shooting instruction, acquiring attribute information of the area to be imaged includes:
  • the first camera is first called to capture a global image.
  • the back of the terminal is disposed, and two cameras are disposed on the back of the terminal, respectively being the first camera and the second camera.
  • the first camera captures a global image and acquires attribute information of the area to be imaged from the global image.
  • the front side of the terminal that is, the side of the display screen
  • the global image captured by the first camera is displayed in the display screen, and the acquired global image is sent to An image processor, the image processor, determines attribute information of the area to be imaged.
  • the attribute information of the area to be imaged refers to the optical information of the area to be imaged
  • the image processor determines the edge information and the feature vector of the area to be imaged according to the optical information of the image to be imaged.
  • the edge information of the area to be imaged refers to the contour, the angle, and the like of the object
  • the feature vector of the area to be imaged refers to the image data corresponding to the contour and angle information
  • the area to be imaged may be divided into N partial shooting areas according to edge information of the area to be imaged and a feature vector.
  • the first camera captures the area to be imaged, and determines the contour of the object to be imaged according to the optical information of the area to be imaged, as shown in FIG.
  • the object is divided into four partial photographing regions according to the feature vectors of the four objects to be photographed.
  • the second camera may be called to acquire a partial image corresponding to the partial shooting area, that is, each local shooting area is photographed by using the second camera.
  • the pixel of the second camera directly determines the amount of pixel information of each partial image after imaging.
  • the second camera may be a high resolution in the prior art. Rate camera.
  • the main subject in each partial shooting area may be focused, and a clear main subject may be obtained in each partial image. object.
  • step 104 after determining the N partial images, the N partial images are also required to be registered, and the image to be imaged corresponding to the complete image to be imaged is determined.
  • the N partial shooting regions are determined according to attribute information such as edge information
  • the plurality of partial shooting regions divided are overlapped.
  • the area can be a coincident edge line or a partial edge image.
  • any adjacent partial images have overlapping regions, so that feature point pairs in any two adjacent partial images of the N partial images may be determined;
  • the feature point pair registers the adjacent partial image. For example, the same feature point is first determined between two adjacent partial images, and the feature point can be found on each partial image, so there are feature point pairs on the two partial images, and the pair of feature points are paired. Two partial images are registered.
  • any two adjacent partial images may be registered by using a Scale-invariant feature transform (SIFT) algorithm.
  • SIFT Scale-invariant feature transform
  • step 104 it is further determined whether an image compression instruction is received. If it is determined that the compression instruction is received, the image to be imaged is compressed; if the compression instruction is not received, the image to be imaged is directly output.
  • the image to be imaged is determined by N partial images, if the number of pixel information included in each partial image of the N partial images is M, the amount of pixel information of the image to be imaged is less than M*N.
  • M the number of pixel information included in each partial image of the N partial images
  • the amount of pixel information of the image to be imaged is less than M*N.
  • the amount of pixel information of the image to be imaged is increased.
  • the image to be imaged after the image to be imaged is compressed, it still has more pixel information than the imaged image in the prior art. After zooming in, there is no mosaic phenomenon.
  • the first camera is a wide-angle camera
  • the second camera is a telephoto camera
  • the wide-angle camera is a kind of photographic lens whose focal length is shorter than the standard lens, the angle of view is larger than the standard lens, the focal length is longer than the fisheye lens, and the angle of view is smaller than the fisheye lens.
  • the wide-angle digital camera has a short focal length, a wide viewing angle, and a deep depth of field. It is more suitable for photographing large scenes such as architecture and landscape. That is to say, the wide-angle camera has a large viewing angle range, and can acquire a larger area of the image to be imaged.
  • the telephoto camera can focus multiple times, which means that each local area can be focused and photographed multiple times.
  • the embodiment of the invention provides a photographing method, which is applied to a photographing terminal device, wherein the photographing terminal device has two cameras, one is a wide-angle camera and the other is a telephoto camera.
  • Step 601 after receiving the shooting instruction, calling a wide-angle camera to obtain optical information of the area to be photographed, and transmitting the optical information to the image processor;
  • Step 602 The image processor determines edge information of the area to be photographed and a feature vector corresponding to the edge information according to the optical information.
  • Step 603 the image processor divides the area to be photographed into a plurality of partial areas according to edge information of the area to be photographed and a feature vector corresponding to the edge information;
  • Step 604 calling a telephoto camera to perform in-focus imaging on each partial area to form a plurality of partial images
  • Step 605 The image processor determines a feature point pair of the adjacent partial image, and registers the plurality of partial images according to the feature point pair to form an image to be imaged.
  • Step 606 it is determined whether a compression command is received, and if so, step 607 is performed; otherwise, step 608 is performed;
  • Step 607 compress the image to be imaged, and output the compressed image to be imaged
  • Step 608 outputting an image to be imaged.
  • an embodiment of the present invention further provides a photographing apparatus, as shown in FIG. 7, comprising:
  • the attribute information determining unit 701 is configured to acquire attribute information of an area to be imaged when receiving the shooting instruction;
  • the area dividing unit 702 is configured to determine N partial shooting areas according to the attribute information of the area to be imaged;
  • a partial image determining unit 703 configured to acquire, for each partial shooting area, a partial image corresponding to the partial shooting area;
  • the imaging unit 704 is configured to determine an image to be imaged corresponding to the area to be imaged according to the N partial images.
  • attribute information determining unit 701 is specifically configured to:
  • the partial image determining unit 703 is specifically configured to:
  • the second camera For each partial shooting area, the second camera is called to perform shooting, and a partial image corresponding to the partial shooting area is acquired.
  • attribute information determining unit 701 is specifically configured to:
  • the area dividing unit 702 is specifically configured to:
  • the area to be imaged is divided into N partial shot areas according to edge information of the area to be imaged and a feature vector.
  • imaging unit 704 is specifically configured to:
  • the adjacent partial images are registered according to the matched feature point pairs.
  • the embodiment of the present invention further provides a photographing apparatus 800, as shown in FIG. 8, comprising:
  • a memory 802 configured to store program instructions
  • the processor 803 is configured to invoke a program instruction stored in the memory 802, and execute the method according to any one of the foregoing embodiments according to the obtained program.
  • the memory 802 is used to store a program.
  • the program can include program code, the program code including computer operating instructions.
  • the memory 802 may be a random access memory (RAM) or a non-volatile memory.
  • RAM random access memory
  • the memory 802 stores the following elements, executable modules or data structures, or their Subsets, or their extension sets:
  • Operation instructions include various operation instructions for implementing various operations.
  • Operating system Includes a variety of system programs for implementing various basic services and handling hardware-based tasks.
  • Processor 803 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above shooting method may be completed by an integrated logic circuit of hardware in the processor 803 or an instruction in a form of software.
  • the processor 803 described above may be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, or discrete hardware. Component.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 802, and the processor 803 reads the information in the memory 802 and performs the following steps in conjunction with its hardware:
  • the processor 803 is configured to: acquire attribute information of an area to be imaged when receiving a shooting instruction; determine N partial shooting areas according to attribute information of the area to be imaged; and acquire the part for each partial shooting area a partial image corresponding to the shooting area; determining an image to be imaged corresponding to the image to be imaged according to the N partial images.
  • the processor 803 is specifically configured to: when receiving the shooting instruction, invoke the first camera to capture a global image, and obtain attribute information of the area to be imaged from the global image; Determining a partial image corresponding to the partial shooting area includes: calling, for each partial shooting area, a second camera to perform shooting, and acquiring a partial image corresponding to the partial shooting area.
  • the processor 803 is specifically configured to: acquire optical information of the area to be imaged from the global image;
  • Determining N partial shooting regions according to the attribute information of the area to be imaged including:
  • the area to be imaged is divided into N partial shot areas according to edge information of the area to be imaged and a feature vector.
  • the processor 803 is specifically configured to: determine a feature point pair in any two adjacent partial images of the N partial images;
  • the adjacent partial images are registered according to the matched feature point pairs.
  • the first camera is a wide-angle camera
  • the second camera is a telephoto camera
  • the present invention also provides a non-transitory computer readable storage medium storing computer instructions for causing the computer to perform the above-described embodiments Any of the methods described.
  • the non-transitory computer storage medium can be any available media or data storage device accessible by a computer, including but not limited to magnetic storage (eg, floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.), optical storage (eg, CD) , DVD, BD, HVD, etc.), and semiconductor memories (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid state drive (SSD)).
  • an embodiment of the present invention provides a computer program product, the computer program product comprising a computing program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions, when the program The instructions, when executed by a computer, cause the computer to perform any of the methods described above.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

本发明提供一种拍摄方法及装置，方法包括：在接收到拍摄指令时，确定待成像区域的属性信息；根据所述待成像区域的属性信息确定N个局部拍摄区域；针对每个局部拍摄区域，确定所述局部拍摄区域对应的局部图像；根据N个所述局部图像确定待成像区域对应的待成像图像。本发明实施例中，将待拍摄区域分块，并且针对每个子区域进行对焦拍照，使得每个子区域都具有较高的分辨率以及更多的图像信息，然后将各子区域进行合成，得到拍摄图像，拍摄图像具有高分辨率以及更多的图像信息，在拍摄图像放大到一定程度后，仍然能够清晰的展示出图像信息，避免出现图片模糊化的问题。

Description

一种拍摄方法及装置
本申请要求在2017年9月22日提交中国专利局、申请号为201710864059.9、发明名称为“一种拍摄方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及电子技术领域，尤其涉及一种拍摄方法及装置。
背景技术
随着智能手机市场晶振的不断加剧，为了能够吸引更多的用户关注，手机厂商在硬件功能和系统优化等方面不断改进，而作为用户最常用到的拍照功能也成为了手机厂商集体追逐的焦点。
现有技术中，通过摄像头进行拍摄获得景深信息后，然后对图像进行背景虚化、辅助对焦等操作，得到最终的拍摄图像；或者通过拍摄多张照片进行融合，得到最终的拍摄图像；但是通过现有技术得到的拍摄图像在放大到一定程度后，会出现图像模糊化的问题。
发明内容
本发明提供一种拍摄方法及装置，用于解决现有技术中拍摄图像在放大到一定程度后，会出现图像模糊化的问题。
本发明实施例提供一种拍摄方法，包括：在接收到拍摄指令时，确定待成像区域的属性信息；
根据所述待成像区域的属性信息确定N个局部拍摄区域；
针对每个局部拍摄区域，确定所述局部拍摄区域对应的局部图像；
根据N个所述局部图像确定待成像区域对应的待成像图像。
本发明实施例中，将待拍摄区域分块，并且针对每个子区域进行对焦拍照，使得每个子区域都具有较高的分辨率以及更多的图像信息，然后将各子区域进行合成，得到拍摄图像，拍摄图像具有高分辨率以及更多的图像信息，在拍摄图像放大到一定程度后，仍然能够清晰的展示出图像信息，避免出现图片模糊化的问题。
所述在接收到拍摄指令时，获取待成像区域的属性信息，包括：
在接收到拍摄指令时，调用第一摄像头拍摄全局图像，从所述全局图像中获取待成像区域的属性信息；
所述针对每个局部拍摄区域，确定所述局部拍摄区域对应的局部图像，包括：
针对每个局部拍摄区域，调用第二摄像头进行拍摄，获取所述局部拍摄区域对应的局部图像。
本发明实施例中，由于现有技术中的终端通常具备双摄像头，且为了扩大全局图像的范围，使用第一摄像头来拍摄全局图像，使用第二摄像头来获取局部图像。
进一步地，所述从所述全局图像中获取待成像区域的属性信息，包括：
从所述全局图像中获取所述待成像区域的光学信息；
根据所述待成像区域的光学信息确定所述待成像区域的边缘信息以及特征向量；
根据所述待成像区域的属性信息确定N个局部拍摄区域，包括：
根据所述待成像区域的边缘信息以及特征向量将所述待成像区域划分为N个局部拍摄区域。
本发明实施例中，根据获取的待成像区域的光学信息确定待成像区域中目标物的边缘信息以及特征向量，并根据这些边缘信息以及特征向量将待成像的区域划分为多个局部区域。
进一步地，所述根据N个所述局部图像确定待成像区域对应的待成像图像，包括：
确定N个所述局部图像中任意两个相邻所述局部图像中的特征点对；
根据所述匹配的特征点对对所述相邻所述局部图像进行配准。
本发明实施例中，确定N个局部图像中存在相同特征的特征点对，通过这些特征点对将N个局部图像进行拼接配准。
进一步地，所述第一摄像头为广角摄像头，所述第二摄像头为长焦摄像头。
本发明实施例中，广角摄像头能够拍摄更广泛的区域，即能够获取更大范围的待成像图像，利用长焦摄像头多次对焦进行拍摄的原理可以对每个局部图像进行对焦并成像。
本发明还提供一种拍摄装置，包括：
属性信息确定单元，用于在接收到拍摄指令时，获取待成像区域的属性信息；
区域划分单元，用于根据所述待成像区域的属性信息确定N个局部拍摄区域；
局部图像确定单元，用于针对每个局部拍摄区域，获取所述局部拍摄区域对应的局部图像；
成像单元，用于根据N个所述局部图像确定待成像区域对应的待成像图像。
本发明实施例中，将待拍摄区域分块，并且针对每个子区域进行对焦拍照，使得每个子区域都具有较高的分辨率以及更多的图像信息，然后将各子区域进行合成，得到拍摄图像，拍摄图像具有高分辨率以及更多的图像信息，在拍摄图像放大到一定程度后，仍然能够清晰的展示出图像信息，避免出现图片模糊化的问题。
进一步地，所述属性信息确定单元具体用于：
在接收到拍摄指令时，调用第一摄像头拍摄全局图像，从所述全局图像中获取待成像区域的属性信息；
所述局部图像确定单元，具体用于：
针对每个局部拍摄区域，调用第二摄像头进行拍摄，获取所述局部拍摄区域对应的局部图像。
进一步地，所述属性信息确定单元具体用于：
从所述全局图像中获取所述待成像区域的光学信息；
根据所述待成像区域的光学信息确定所述待成像区域的边缘信息以及特征向量；
所述区域划分单元具体用于：
根据所述待成像区域的边缘信息以及特征向量将所述待成像区域划分为N个局部拍摄区域。
进一步地，所述成像单元具体用于：
确定N个所述局部图像中任意两个相邻所述局部图像中的特征点对；
根据所述匹配的特征点对对所述相邻所述局部图像进行配准。
本发明实施例还提供一种拍摄设备，包括：
摄像头，用于拍摄图像；
存储器，用于存储程序指令；
处理器，用于调用所述存储器中存储的程序指令，按照获得的程序执行上述任一项所述的方法。
本发明实施例还提供一种非暂态计算机可读存储介质，所述非暂态计算机可读存储介质存储计算机指令，所述计算机指令用于使所述计算机执行上述任一所述方法。
本发明实施例提供一种计算机程序产品，所述计算机程序产品包括存储在非暂态计算机可读存储介质上的计算程序，所述计算机程序包括程序指令，当所述程序指令被计算机执行时，使所述计算机执行上述任一所述方法。
在本发明实施例中，由于待成像图像是N个局部图像确定的，假设N个局部图像中每个局部图像中包含的像素信息为M个，则待成像图像的像素信息量小于M*N个，但是与现有技术中只有M个相比，增加了待成像图像的像素信息量。当用户需要进行压缩时，只是在待成像图像中减少部分像素信 息，所以在本发明实施例中，待成像图像在压缩后，依然比现有技术中的成像图像具有更多的像素信息，所以在放大后，不会出现马赛克的现象。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简要介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域的普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例提供的一种拍摄方法的流程示意图；
图2为本发明实施例提供的一种局部图像的示意图；
图3为本发明实施例提供的一种终端设备的结构示意图；
图4为本发明实施例提供的一种终端设备的结构示意图；
图5为本发明实施例提供的一种确定局部图像的方法示意图；
图6为本发明实施例提供的一种拍摄方法的流程示意图；
图7为本发明实施例提供的一种拍摄装置的结构示意图；
图8为本发明实施例提供的一种拍摄设备的结构示意图。
具体实施方式
为了使本发明的目的、技术方案和优点更加清楚，下面将结合附图对本发明作进一步地详细描述，显然，所描述的实施例仅仅是本发明一部份实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。
本发明提供一种拍摄方法，如图1所示，包括：
步骤101，在接收到拍摄指令时，获取待成像区域的属性信息；
步骤102，根据所述待成像区域的属性信息确定N个局部拍摄区域；
步骤103，针对每个局部拍摄区域，获取所述局部拍摄区域对应的局部图 像；
步骤104，根据N个所述局部图像确定待成像区域对应的待成像图像。
本发明实施例中，接收到拍摄指令的终端指的是具有摄像头的一切终端设备，例如手机、IPAD等设备。
在本发明实施例中，在终端接收到拍摄指令时，即用户在使用终端进行拍照时，首先确定待成像区域的属性信息，并根据待成像区域的属性信息将待成像区域划分为多个局部拍摄区域，针对每个局部拍摄区域，对该局部区域进行对焦成像，然后将成像后的局部图像进行拼接，确定待成像图像。
例如，如图2所示，在本发明实施例中，终端摄像头的像素为1600万，获取待成像区域为摄像头的拍摄范围，例如摄像头的拍摄范围就是用户在终端屏幕上看到的成像图像的范围，当用户发出拍摄指令后，摄像头获取了用户看到的成像图像范围的属性信息，假设根据属性信息将待成像图像划分为四个区域，利用摄像头对每个区域进行对焦拍照，即每个成像区域的获取到的像素信息都是1600万个，若假设四个区域之间只有边缘信息重合，则组合后的待成像图像的像素是1600万×4＝6400万，然后减去重合边缘的像素，与现有技术中待成像图像的1600万像素信息相比，提高了待成像图像中的像素质量，在将待成像图像进行放大后，仍然能够获得清晰的像素信息。
可选的，在本发明实施例中，由于现有技术中的终端通常包括两个摄像头，所以在本发明实施例中，可以调用两个摄像头来合作完成本发明实施例。
可选的，在步骤101中，在接收到拍摄指令时，获取待成像区域的属性信息，包括：
在接收到拍摄指令时，调用第一摄像头拍摄全局图像，从所述全局图像中获取待成像区域的属性信息；
在本发明实施例中，首先调用第一摄像头拍摄全局图像，可选的，如图3所示为终端的背面，在终端的背面设置了两个摄像头，分别为第一摄像头以及第二摄像头，在接收到拍摄指令时，第一摄像头拍摄全局图像，并从全局图像中获取待成像区域的属性信息。
可选的，在本发明实施例中，如图4所示为终端的前面，即有显示屏的一面，显示屏中就是第一摄像头拍摄到的全局图像，并将获取到的全局图像发送给图像处理器，图像处理器来确定待成像区域的属性信息。
可选的，在本发明实施例中，待成像区域的属性信息指的是待成像区域的光学信息，图像处理器根据待成像图像的光学信息确定待成像区域的边缘信息和特征向量。
可选的，在本发明实施例中，待成像区域的边缘信息指的是物体的轮廓、角等信息，待成像区域的特征向量指的是这些轮廓、角信息对应的图像数据。
可选的，在步骤102中，可以根据待成像区域的边缘信息以及特征向量将待成像区域划分为N个局部拍摄区域。
例如，在本发明实施例中，如图5所示为第一摄像头拍摄到了待成像区域，并根据待成像区域的光学信息确定了待成像区域的物体轮廓，如图5中包括四个待摄物体；根据四个待摄物体的特征向量，将待成像区域划分为四个局部拍摄区域。
可选的，在步骤103中，针对每个局部拍摄区域，可以调用第二摄像头获取所述局部拍摄区域对应的局部图像，也就是说利用第二摄像头对每个局部拍摄区域进行一次拍照。
在本发明实施例中，第二摄像头的像素直接决定了每个局部图像在成像后的像素信息量，可选的，在本发明实施例中，第二摄像头可以是现有技术中的高分辨率摄像头。
可选的，在本发明实施例中，为了得到更好图像质量的局部图像，可以对每个局部拍摄区域中的主要被摄物体进行对焦，每个局部图像中都可以得到清晰的主要被摄物体。
可选的，在步骤104中，在确定了N个局部图像后，还需要将N个局部图像进行配准，确定完整的待成像区域对应的待成像图像。
可选的，在本发明实施例中，由于在确定N个局部拍摄区域时，是根据边缘信息等属性信息来确定的，所以划分为的多个局部拍摄区域之间有重合 区域，可以是重合的边缘线，也可以是部分边缘图像。
可选的，在本发明实施例中，任意相邻的局部图像之间都有重合区域，所以可以确定N个所述局部图像中任意两个相邻局部图像中的特征点对；根据匹配的特征点对对所述相邻局部图像进行配准。例如，任意相邻的两个局部图像之间首先确定相同的特征点，且该特征点在每个局部图像上都能找到，所以在两个局部图像上存在特征点对，通过特征点对对两个局部图像进行配准。
可选的，在本发明实施例中，可以利用SIFT(Scale-invariant feature transform，尺度不变特征变换)算法对任意两个相邻的局部图像进行配准。
可选的，在步骤104后，还需要确定是否接收到图像压缩指令，若确定接收到压缩指令，则对待成像图像进行压缩；若没有接收到压缩指令，则直接输出待成像图像。
在本发明实施例中，由于待成像图像是N个局部图像确定的，假设N个局部图像中每个局部图像中包含的像素信息为M个，则待成像图像的像素信息量小于M*N个，但是与现有技术中只有M个相比，增加了待成像图像的像素信息量。当用户需要进行压缩时，只是在待成像图像中减少部分像素信息，所以在本发明实施例中，待成像图像在压缩后，依然比现有技术中的成像图像具有更多的像素信息，所以在放大后，不会出现马赛克的现象。
可选的，在本发明实施例中，第一摄像头为广角摄像头，第二摄像头为长焦摄像头。
广角摄像头是一种焦距短于标准镜头、视角大于标准镜头、焦距长于鱼眼镜头、视角小于鱼眼镜头的摄影镜。广角数码相机的镜头焦距很短，视角较宽，而景深却很深，比较适合拍摄较大场景的照片，如建筑、风景等题材。也就是说，广角摄像头的视角范围大，能够获取更大范围内的待成像区域。
长焦摄像头可以多次对焦，也就是说可以对每个局部区域进行对焦，并多次拍照。
为了便于本领域技术人员的理解，本发明实施例在此举例，如图6所示， 本发明实施例提供一种拍摄方法，应用于拍摄终端设备，其中拍摄终端设备具有两个摄像头，一个为广角摄像头，另一个为长焦摄像头。
步骤601，在接收到拍摄指令后，调用广角摄像头获取待拍摄区域的光学信息，并将光学信息发送至图像处理器；
步骤602，图像处理器根据光学信息确定待拍摄区域的边缘信息以及边缘信息对应的特征向量；
步骤603，图像处理器根据待拍摄区域的边缘信息以及边缘信息对应的特征向量将待拍摄区域划分为多个局部区域；
步骤604，调用长焦摄像头对每个局部区域进行对焦成像，形成多个局部图像；
步骤605，图像处理器确定相邻局部图像的特征点对，并根据特征点对对多个局部图像进行配准，形成待成像图像；
步骤606，判断是否接收到压缩指令，若是，则执行步骤607；否则执行步骤608；
步骤607，对待成像图像进行压缩，并输出压缩后的待成像图像；
步骤608，输出待成像图像。
基于同样的构思，本发明实施例还提供一种拍摄装置，如图7所示，包括：
属性信息确定单元701，用于在接收到拍摄指令时，获取待成像区域的属性信息；
区域划分单元702，用于根据所述待成像区域的属性信息确定N个局部拍摄区域；
局部图像确定单元703，用于针对每个局部拍摄区域，获取所述局部拍摄区域对应的局部图像；
成像单元704，用于根据N个所述局部图像确定待成像区域对应的待成像图像。
进一步地，所述属性信息确定单元701具体用于：
在接收到拍摄指令时，调用第一摄像头拍摄全局图像，从所述全局图像中获取待成像区域的属性信息；
所述局部图像确定单元703，具体用于：
针对每个局部拍摄区域，调用第二摄像头进行拍摄，获取所述局部拍摄区域对应的局部图像。
进一步地，所述属性信息确定单元701具体用于：
从所述全局图像中获取所述待成像区域的光学信息；
根据所述待成像区域的光学信息确定所述待成像区域的边缘信息以及特征向量；
所述区域划分单元702具体用于：
根据所述待成像区域的边缘信息以及特征向量将所述待成像区域划分为N个局部拍摄区域。
进一步地，所述成像单元704具体用于：
确定N个所述局部图像中任意两个相邻所述局部图像中的特征点对；
根据所述匹配的特征点对对所述相邻所述局部图像进行配准。
基于相同的技术构思，本发明实施例还提供一种拍摄设备800，如图8所示，包括：
摄像头801，用于拍摄图像；
存储器802，用于存储程序指令；
处理器803，用于调用所述存储器802中存储的程序指令，按照获得的程序执行上述实施例的任一项所述的方法。
其中存储器802，用于存放程序。具体地，程序可以包括程序代码，程序代码包括计算机操作指令。存储器802可能为随机存取存储器(random access memory，简称RAM)，也可能为非易失性存储器(non-volatile memory)，存储器802存储了如下的元素，可执行模块或者数据结构，或者它们的子集，或者它们的扩展集：
操作指令：包括各种操作指令，用于实现各种操作。
操作系统：包括各种系统程序，用于实现各种基础业务以及处理基于硬件的任务。
上述本发明实施例拍摄方法可以应用于处理器803中，或者说由处理器803实现。处理器803可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述拍摄方法的各步骤可以通过处理器803中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器803可以是通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本发明实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器802，处理器803读取存储器802中的信息，结合其硬件执行以下步骤：
所述处理器803，用于在接收到拍摄指令时，获取待成像区域的属性信息；根据所述待成像区域的属性信息确定N个局部拍摄区域；针对每个局部拍摄区域，获取所述局部拍摄区域对应的局部图像；根据N个所述局部图像确定待成像区域对应的待成像图像。
可选地，所述处理器803具体用于：在接收到拍摄指令时，调用第一摄像头拍摄全局图像，从所述全局图像中获取待成像区域的属性信息；所述针对每个局部拍摄区域，确定所述局部拍摄区域对应的局部图像，包括：针对每个局部拍摄区域，调用第二摄像头进行拍摄，获取所述局部拍摄区域对应的局部图像。
可选地，所述处理器803具体用于：从所述全局图像中获取所述待成像区域的光学信息；
根据所述待成像区域的光学信息确定所述待成像区域的边缘信息以及特 征向量；
根据所述待成像区域的属性信息确定N个局部拍摄区域，包括：
根据所述待成像区域的边缘信息以及特征向量将所述待成像区域划分为N个局部拍摄区域。
可选地，所述处理器803具体用于：确定N个所述局部图像中任意两个相邻所述局部图像中的特征点对；
根据所述匹配的特征点对对所述相邻所述局部图像进行配准。
可选地，所述第一摄像头为广角摄像头，所述第二摄像头为长焦摄像头。
基于相同的技术构思，本发明还提供一种非暂态计算机可读存储介质，所述非暂态计算机可读存储介质存储计算机指令，所述计算机指令用于使所述计算机执行上述实施例的任一所述方法。所述非暂态计算机存储介质可以是计算机能够存取的任何可用介质或数据存储设备，包括但不限于磁性存储器(例如软盘、硬盘、磁带、磁光盘(MO)等)、光学存储器(例如CD、DVD、BD、HVD等)、以及半导体存储器(例如ROM、EPROM、EEPROM、非易失性存储器(NAND FLASH)、固态硬盘(SSD))等。
基于相同的技术构思，本发明实施例提供一种计算机程序产品，所述计算机程序产品包括存储在非暂态计算机可读存储介质上的计算程序，所述计算机程序包括程序指令，当所述程序指令被计算机执行时，使所述计算机执行上述任一所述方法。
本发明是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本发明的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本发明范围的所有变更和修改。
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。

Claims (12)

  1. 一种拍摄方法，其特征在于，包括：
    在接收到拍摄指令时，获取待成像区域的属性信息；
    根据所述待成像区域的属性信息确定N个局部拍摄区域；
    针对每个局部拍摄区域，获取所述局部拍摄区域对应的局部图像；
    根据N个所述局部图像确定待成像区域对应的待成像图像。
  2. 根据权利要求1所述的方法，其特征在于，所述在接收到拍摄指令时，获取待成像区域的属性信息，包括：
    在接收到拍摄指令时，调用第一摄像头拍摄全局图像，从所述全局图像中获取待成像区域的属性信息；
    所述针对每个局部拍摄区域，确定所述局部拍摄区域对应的局部图像，包括：
    针对每个局部拍摄区域，调用第二摄像头进行拍摄，获取所述局部拍摄区域对应的局部图像。
  3. 根据权利要求2所述的方法，其特征在于，所述从所述全局图像中获取待成像区域的属性信息，包括：
    从所述全局图像中获取所述待成像区域的光学信息；
    根据所述待成像区域的光学信息确定所述待成像区域的边缘信息以及特征向量；
    根据所述待成像区域的属性信息确定N个局部拍摄区域，包括：
    根据所述待成像区域的边缘信息以及特征向量将所述待成像区域划分为N个局部拍摄区域。
  4. 根据权利要求2所述的方法，其特征在于，所述根据N个所述局部图像确定待成像区域对应的待成像图像，包括：
    确定N个所述局部图像中任意两个相邻所述局部图像中的特征点对；
    根据所述匹配的特征点对对所述相邻所述局部图像进行配准。
  5. 根据权利要1～4任一所述的方法，其特征在于，所述第一摄像头为广角摄像头，所述第二摄像头为长焦摄像头。
  6. 一种拍摄装置，其特征在于，包括：
    属性信息确定单元，用于在接收到拍摄指令时，获取待成像区域的属性信息；
    区域划分单元，用于根据所述待成像区域的属性信息确定N个局部拍摄区域；
    局部图像确定单元，用于针对每个局部拍摄区域，获取所述局部拍摄区域对应的局部图像；
    成像单元，用于根据N个所述局部图像确定待成像区域对应的待成像图像。
  7. 根据权利要求6所述的装置，其特征在于，所述属性信息确定单元具体用于：
    在接收到拍摄指令时，调用第一摄像头拍摄全局图像，从所述全局图像中获取待成像区域的属性信息；
    所述局部图像确定单元，具体用于：
    针对每个局部拍摄区域，调用第二摄像头进行拍摄，获取所述局部拍摄区域对应的局部图像。
  8. 根据权利要求7所述的装置，其特征在于，所述属性信息确定单元具体用于：
    从所述全局图像中获取所述待成像区域的光学信息；
    根据所述待成像区域的光学信息确定所述待成像区域的边缘信息以及特征向量；
    所述区域划分单元具体用于：
    根据所述待成像区域的边缘信息以及特征向量将所述待成像区域划分为N个局部拍摄区域。
  9. 根据权利要求7所述的装置，其特征在于，所述成像单元具体用于：
    确定N个所述局部图像中任意两个相邻所述局部图像中的特征点对；
    根据所述匹配的特征点对对所述相邻所述局部图像进行配准。
  10. 一种拍摄设备，其特征在于，包括：
    摄像头，用于拍摄图像；
    存储器，用于存储程序指令；
    处理器，用于调用所述存储器中存储的程序指令，按照获得的程序执行如权利要求1至5中任一项所述的方法。
  11. 一种非暂态计算机可读存储介质，其特征在于，所述非暂态计算机可读存储介质存储计算机指令，所述计算机指令用于使所述计算机执行权利要求1至5任一所述方法。
  12. 一种计算机程序产品，其特征在于，所述计算机程序产品包括存储在非暂态计算机可读存储介质上的计算程序，所述计算机程序包括程序指令，当所述程序指令被计算机执行时，使所述计算机执行权利要求1至5任一所述方法。
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