WO2020177514A1 - 图像存取方法及其系统 - Google Patents

图像存取方法及其系统 Download PDF

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Publication number
WO2020177514A1
WO2020177514A1 PCT/CN2020/075003 CN2020075003W WO2020177514A1 WO 2020177514 A1 WO2020177514 A1 WO 2020177514A1 CN 2020075003 W CN2020075003 W CN 2020075003W WO 2020177514 A1 WO2020177514 A1 WO 2020177514A1
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Prior art keywords
image
sub
images
storage
assembly information
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French (fr)
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陈爱民
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Alibaba Group Holding Ltd
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Alibaba Group Holding Ltd
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    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60Protecting data
    • G06F21/602Providing cryptographic facilities or services
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T3/00Geometric image transformations in the plane of the image
    • G06T3/40Scaling of whole images or parts thereof, e.g. expanding or contracting
    • G06T3/4038Image mosaicing, e.g. composing plane images from plane sub-images

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  • This manual relates to the field of image storage technology.
  • This manual provides an image access method and its system, which can improve the security of the image. Even if part of the storage node storing the image is logged in by a hacker, it is difficult to obtain the user information in the image.
  • This application discloses an image storage method, including:
  • each sub-image belonging to the same image is stored in at least two different storage nodes, and each storage node stores part of the sub-images of the image;
  • the image assembly information is stored in a storage device other than the storage node.
  • the method before storing the image assembly information in a storage device other than the storage node, the method further includes:
  • the image assembling information includes the assembling order of each of the sub-images or the coordinate position of each of the sub-images in the coordinate system of the image.
  • the image assembly information includes a storage path of each of the sub-images.
  • the storing the at least two sub-images in different storage nodes respectively further includes:
  • the storage node corresponding to each of the sub-images is randomly determined before storage.
  • the size of each sub-image does not exceed a preset size.
  • the application also discloses an image acquisition method including:
  • the method further includes: decrypting the image assembly information.
  • the image assembling information includes the assembling order of each of the sub-images or the coordinate position of each of the sub-images in the coordinate system of the image.
  • the image assembly information includes a storage path of each of the sub-images
  • Said obtaining respectively all sub-images belonging to the same image from at least two storage nodes further includes:
  • This application also discloses an image storage system including:
  • Splitting device for splitting an image into at least two sub-images, and generating image assembly information according to the splitting method
  • Assembly information storage device for storing the sub-image assembly information
  • At least two storage nodes for storing the sub-image; the assembled information storage device is not any one of the at least two storage nodes;
  • a routing device configured to store the at least two sub-images in different storage nodes, wherein each sub-image belonging to the same image is stored in at least two different storage nodes, and each storage node stores the image Part of the sub-image.
  • the assembly information storage device is further used to encrypt the assembly information before saving the assembly information.
  • the image assembling information includes the assembling order of each of the sub-images or the coordinate position of each of the sub-images in the coordinate system of the image.
  • the image assembly information includes a storage path of each of the sub-images.
  • the routing device randomly determines the storage node corresponding to each of the sub-images.
  • the size of each sub-image does not exceed a preset size.
  • the routing device is further configured to obtain all sub-images belonging to the same image from the at least two storage nodes respectively;
  • the system further includes an assembling device for acquiring the image assembling information from the assembling information storage device, and assembling each of the sub-images into a complete image according to the image assembling information.
  • the image assembly information includes a storage path of each of the sub-images
  • the routing device respectively obtains all sub-images belonging to the same image from at least two storage nodes according to the sub-image storage path in the image assembly information.
  • the assembly information storage device is further configured to decrypt the image assembly information after extracting the image assembly information, and then output to the assembly device.
  • This application also discloses an image storage system including:
  • Memory for storing computer executable instructions
  • the processor is used to implement the steps in the method described above when executing the computer-executable instructions.
  • the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions implement the steps in the method described above when executed by the processor.
  • the image uploaded by the user is divided into multiple sub-images for distributed storage.
  • the assembly sequence of the image is saved in the system and encrypted and stored. Even if the image server is logged in by a hacker, the user’s real personal credentials cannot be obtained. Complete information.hackers need to obtain the corresponding assembly sequence of the image and decrypt it, and also know the storage location of the sub-images of the image, so that the sub-images can be assembled correctly to obtain the complete image, which is very difficult.
  • FIG. 1 is a schematic flowchart of an image storage method according to the first embodiment of this specification
  • FIG. 2 is a schematic flowchart of an image acquisition method according to a second embodiment of this specification
  • FIG. 3 is a schematic diagram of the structure of an image storage system according to a third embodiment of this specification.
  • Fig. 4 is a schematic diagram of image splitting according to an embodiment of the present specification.
  • the first embodiment of this specification relates to an image storage method, the flow of which is shown in Figure 1, and the method includes the following steps:
  • step 102 an image is split into at least two sub-images, and image assembling information is generated according to the split mode.
  • the image assembly information includes the assembly order of each sub-image or the coordinate position of each sub-image in the coordinate system of the image.
  • the image assembling information may further include the identification of the image, the identification of each sub-image, and so on.
  • the image assembly information includes the storage path of each sub-image. Specifically, the storage path may be that after each sub-image is stored in different storage nodes, the storage location is recorded as part of the image assembly information.
  • the graphic assembly information may not include the storage path of the sub-image, and the storage path of the sub-image may be calculated according to certain information in the image assembly information.
  • the image identification may be hashed, and The hash operation result determines the storage location of each sub-image.
  • the image assembly information may include a random number, and the storage location of each sub-image may be determined according to the random number.
  • each sub-image does not exceed a preset size.
  • the rectangular sub-image can be split from the image according to the preset length L and width W. If the length of the image cannot be divisible by L or the width of the image cannot be divisible by W, the length of a part of the sub-image will be reduced. Less than L or less than W in width. Specifying the upper limit of the sub-image size can prevent a single sub-image from containing too much information, and avoid partial key information being leaked by a sub-image.
  • the shape and size of each sub-image are the same, for example, it can be evenly split into 16 rectangular sub-images according to the horizontal and vertical coordinates.
  • the size or shape of each sub-image is not exactly the same, for example, some sub-images may be rectangular, and some sub-images may be triangular.
  • step 104 to store at least two sub-images in different storage nodes respectively, where each sub-image belonging to the same image is stored in at least two different storage nodes, and each storage node stores part of an image. image.
  • no storage node will store all the sub-images of the same image. This can prevent all sub-images of an image from being leaked after a storage node is hacked.
  • the storage node corresponding to each sub-image is randomly determined before storage. For example, an image is divided into 4 sub-images, and the routing device randomly stores the 4 sub-images to these 4 storage nodes, and each storage node stores 1 sub-image. Another example is that an image is divided into 16 sub-images, and the routing device randomly allocates these 16 sub-images to these 5 storage nodes.
  • the number of sub-images stored in each storage node is a random number greater than 1, for example, these 5
  • the number of sub-images allocated to the storage node are 5, 2, 1, 4, and 4 respectively.
  • the storage location for each sub-image may be allocated not in a random manner, but according to a preset rule, for example, the storage node of each sub-image is determined according to the hash value of the identifier of each sub-image.
  • the sub-image can also be encrypted, so that even if the sub-image is leaked, the content of the sub-image cannot be directly seen, thereby further improving security.
  • step 106 is entered to store the image assembly information.
  • the image assembly information and the sub-images are stored in different storage nodes.
  • the image assembly information is stored in a dedicated storage device, which is not responsible for storing sub-images, thereby further improving security.
  • the image assembly information is encrypted before storage.
  • step 106 can be performed before step 104, or step 104 can be performed in parallel with step 106.
  • the assembly sequence of the image is saved in the system and encrypted storage, even if the image server is logged in by a hacker, the complete information of the user's real personal ID cannot be obtained.
  • the second embodiment of this specification relates to an image acquisition method, the process of which is shown in Figure 2, and the method includes the following steps:
  • step 202 image assembly information is obtained.
  • the image assembly information obtained from the storage device is encrypted, and the obtained image assembly information needs to be decrypted.
  • step 204 is entered to obtain all sub-images belonging to the same image from at least two storage nodes.
  • the image assembly information is stored in a storage device other than the storage node storing the sub-images.
  • the image assembly information and the sub-images are stored in different storage devices.
  • the image assembly information includes the storage path of each sub-image, so that all sub-images belonging to the same image can be obtained from at least two storage nodes according to the sub-image storage path in the image assembly information.
  • the graphic assembly information may not include the storage path of the sub-image, and the storage path of the sub-image may be calculated according to certain information in the image assembly information.
  • the image identification may be hashed. Determine the storage location of each sub-image according to the hash operation result.
  • the image assembly information may include a random number, and the storage location of each sub-image may be determined according to the random number. Each sub-image can be extracted from each storage node according to the calculated storage location.
  • the sub-image is encrypted before being stored, and in this case, the acquired sub-image needs to be decrypted.
  • step 206 is entered to assemble each sub-image into a complete image according to the image assembling information.
  • the image assembly information includes the assembly order of each sub-image or the coordinate position of each sub-image in the coordinate system of the image.
  • the sub-images can be assembled into a complete image according to the assembly order or coordinate position.
  • the first embodiment is a storage method, and this embodiment is an acquisition method corresponding to the first embodiment.
  • the relevant details of the first embodiment can also be used in this embodiment, and the relevant details of this embodiment can also be used in this embodiment. In the first embodiment.
  • the third embodiment of this specification relates to an image storage system, the structure of which is shown in Figure 3, and the system includes:
  • the splitting device is used to split an image into at least two sub-images and generate image assembly information according to the splitting method.
  • the assembly information storage device is used to store sub-image assembly information.
  • the stored image assembly information is encrypted, and the image assembly information needs to be encrypted before the image assembly information is stored, and it needs to be decrypted after the image assembly information is read.
  • At least two storage nodes are used to store sub-images.
  • the assembly information storage device storing the image assembly information does not overlap with the storage nodes storing the sub-images, or the image assembly information and the sub-images are stored in different storage devices.
  • a routing device for storing at least two sub-images to different storage nodes, and for obtaining all sub-images belonging to the same image from at least two storage nodes, wherein each sub-image belonging to the same image is stored at least To two different storage nodes, each storage node stores a partial image of an image.
  • the assembling device is used for obtaining image assembling information from the assembling information storage device, and assembling each sub-image into a complete image according to the image assembling information.
  • the storage node corresponding to each sub-image is randomly determined before storage. For example, an image is divided into 4 sub-images, and the routing device randomly stores the 4 sub-images to these 4 storage nodes, and each storage node stores 1 sub-image. Another example is that an image is divided into 16 sub-images, and the routing device randomly allocates these 16 sub-images to these 5 storage nodes.
  • the number of sub-images stored in each storage node is a random number greater than 1, for example, these 5
  • the number of sub-images allocated to the storage node are 5, 2, 1, 4, and 4 respectively.
  • the storage location for each sub-image may be allocated not in a random manner, but according to a preset rule, for example, the storage node of each sub-image is determined according to the hash value of the identifier of each sub-image.
  • the image assembling information includes the assembling order of the sub-images or the coordinate position of each sub-image in the coordinate system of the image.
  • the image assembling information may further include the identification of the image, the identification of each sub-image, and so on.
  • the image assembly information includes the storage path of each sub-image. Specifically, the storage path can be that after each sub-image is stored in different storage nodes, the storage location is recorded as a part of the image assembly information.
  • the routing device can be based on the sub-image storage path in the image assembly information Obtain all sub-images belonging to the same image from at least two storage nodes.
  • the graphic assembly information may not include the storage path of the sub-image, and the storage path of the sub-image can be calculated according to certain information in the image assembly information.
  • the image identification can be hashed, and the The result determines the storage location of each sub-image.
  • the image assembly information may include a random number, and the storage location of each sub-image may be determined according to the random number.
  • the routing device can also determine the storage location of each sub-image according to the splitting method for reading.
  • each sub-image does not exceed a preset size.
  • the rectangular sub-image can be split from the image according to the preset length L and width W. If the length of the image cannot be divisible by L or the width of the image cannot be divisible by W, the length of a part of the sub-image will be reduced. Less than L or less than W in width. Specifying the upper limit of the sub-image size can prevent a single sub-image from containing too much information, and avoid partial key information being leaked by a sub-image.
  • the shape and size of each sub-image are the same, for example, it can be evenly split into 16 rectangular sub-images according to horizontal and vertical coordinates.
  • the size or shape of each sub-image is not exactly the same, for example, some sub-images may be rectangular, and some sub-images may be triangular.
  • the image storage system may further include an encryption device and a decryption device.
  • the encryption device is used for encrypting the sub-image output by the splitting device and output to the routing device
  • the decrypting device is used for decrypting the sub-image output by the routing device and outputting it to the assembling device. Because the sub-image is encrypted and stored, even if the sub-image is leaked, the content of the sub-image cannot be directly seen, which can further improve security.
  • the first and second embodiments are method embodiments corresponding to this embodiment.
  • the technical details in the first and second embodiments can be applied to this embodiment, and the technical details in this embodiment can also be applied to the first And the second embodiment.
  • an ID card image (file name img.jpg) is 1000*650 pixels, it is split according to the size of 100*100 in the splitting device, and a total of 70 sub-images are obtained, of which the size of 60 sub-images is 100*100, the size of 10 sub-images is 100*50. Name these sub-images according to their positions in the original image, for example:
  • img_0_0.jpg the sub-image of the first column and the first row of the original image cut out according to the grid;
  • img_0_1.jpg The meaning of img_0_1.jpg is: the sub-image in the first column and second row of the original image cut out by grid;
  • img_0_2.jpg The meaning of img_0_2.jpg is: the sub-image of the first column and the third row of the original image cut out by grid;
  • img_1_0.jpg the sub-image of the second column and the first row of the original image cut out by grid;
  • the number in the sub-image name represents the position of the sub-image in the original image, as shown in Figure 4.
  • the routing device randomly stores these images in 7 storage nodes, and each storage node stores 10 sub-images.
  • the image assembly information is updated with the storage path of each sub-image, and the image assembly information is encrypted and stored in the assembly information storage device.
  • the image assembly information is as follows:
  • Img.jpg is the image file name
  • img_0_0.jpg, etc. are the sub-image file names
  • http://www.x.com/img/sdjlfa/sdfa/dasffs.jpg is the sub-image storage path.
  • the assembling device When acquiring an image, the assembling device first obtains the image assembling information of the image from the assembling information storage device, decrypts the assembling information, and obtains the storage path of each sub-image from the decrypted image assembling information.
  • the routing device reads each sub-image according to the storage path and sends it to the assembling device.
  • the assembling device completes the image assembling according to the position of each character image in the assembling information, for example, img_0_0.jpg is in the (0,0) grid, img_0_1.jpg is in the (0,1) grid, and so on.
  • each module shown in the above embodiment of the image storage system can be realized by a program (executable instruction) running on a processor, or can be realized by a specific logic circuit. If the above-mentioned image storage system in the embodiments of this specification is implemented in the form of a software function module and sold or used as an independent product, it may also be stored in a computer readable storage medium.
  • the technical solutions of the embodiments of the present specification can be embodied in the form of a software product in essence or a part that contributes to the prior art.
  • the computer software product is stored in a storage medium and includes several instructions for A computer device (which may be a personal computer, a server, or a network device, etc.) executes all or part of the method described in each embodiment of this specification.
  • the aforementioned storage media include: U disk, mobile hard disk, Read Only Memory (ROM, Read Only Memory), magnetic disk or optical disk and other media that can store program codes. In this way, the embodiments of this specification are not limited to any specific combination of hardware and software.
  • the embodiments of this specification also provide a computer-readable storage medium in which computer-executable instructions are stored, and when the computer-executable instructions are executed by a processor, each method embodiment of this specification is implemented.
  • Computer-readable storage media include permanent and non-permanent, removable and non-removable media, and information storage can be realized by any method or technology.
  • the information can be computer-readable instructions, data structures, program modules, or other data.
  • Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, CD-ROM, digital versatile disc (DVD) or other optical storage, Magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media can be used to store information that can be accessed by computing devices. According to the definition in this article, computer-readable storage media does not include transitory media, such as modulated data signals and carrier waves.
  • PRAM phase change memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • RAM random access memory
  • ROM read-only memory
  • EEPROM electrically erasable programmable read-only memory
  • flash memory or other memory technology
  • CD-ROM compact disc
  • DVD digital versatile disc
  • Magnetic cassettes magnetic tape magnetic disk storage or other magnetic storage devices or any other
  • the embodiments of this specification also provide an image storage system, which includes a memory for storing computer executable instructions, and a processor.
  • the processor is used to implement the steps in the foregoing method implementation manners when the computer executable instructions in the memory are executed.
  • the processor may be a central processing unit (Central Processing Unit, "CPU"), other general-purpose processors, digital signal processors (Digital Signal Processor, "DSP"), and application specific integrated circuits (Application Specific Integrated Circuits). Integrated Circuit, referred to as "ASIC"), etc.
  • the aforementioned memory may be read-only memory (“ROM” for short), random access memory (“RAM” for short), flash memory (Flash), hard disk, or solid-state hard disk.
  • the steps of the methods disclosed in the various embodiments of the present invention may be directly embodied as executed by a hardware processor, or executed by a combination of hardware and software modules in the processor.
  • an act is performed based on a certain element, it means that the act is performed at least based on that element, which includes two situations: performing the act only based on the element, and performing the act based on the element and Other elements perform the behavior.
  • Multiple, multiple, multiple, etc. expressions include two, two, two, and two or more, two or more, and two or more expressions.

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Abstract

本申请公开了一种图像存取方法及其系统。该方法包括:将一个图像拆分为至少两个子图像,并根据拆分方式生成图像拼装信息;将所述至少两个子图像分别存储到不同的存储节点,其中属于同一个图像的各个子图像至少被存储到两个不同的存储节点中,每个存储节点中存储该图像的部分子图像;将所述图像拼装信息加密后存储。

Description

图像存取方法及其系统 技术领域
本说明书涉及图像存储技术领域。
背景技术
目前很多应用在为用户提供服务前需要对用户进行认证,在认证过程中往往需要用户需要上传重要证件或证明(例如身份证、护照、驾照、纳税证明等)的图像,这些重要证件或证明中包括用户个人隐私信息,一旦图像泄露会造成用户信息暴露问题。而用户个人隐私信息的保护一直是互联网时代的一个重要挑战。
发明内容
本说明书提供了一种图像存取方法及其系统,可以提高图像的安全性,即使存储图像的部分存储节点被黑客登录也很难得到图像中的用户信息。
本申请公开了一种图像存储方法,包括:
将一个图像拆分为至少两个子图像,并根据拆分方式生成图像拼装信息;
将所述至少两个子图像分别存储到不同的存储节点,其中属于同一个图像的各个子图像至少被存储到两个不同的存储节点中,每个存储节点中存储所述图像的部分子图像;
将所述图像拼装信息存储到与所述存储节点之外的其他存储装置中。
在一个优选例中,所述将所述图像拼装信息存储到与所述存储节点之外的其他存储装置中之前,还包括:
对所述图像拼装信息进行加密。
在一个优选例中,所述图像拼装信息包括各所述子图像的拼装顺序或各所述子图像在所述图像的坐标系中的坐标位置。
在一个优选例中,所述图像拼装信息包括每个所述子图像的存储路径。
在一个优选例中,所述将所述至少两个子图像分别存储到不同的存储节点,进一步包括:
在存储前以随机方式确定各所述子图像所对应的存储节点。
在一个优选例中,所述将一个图像拆分为至少两个子图像的步骤中,每一个子图像的大小均不超过预先设定的大小。
本申请还公开了一种图像获取方法包括:
获取图像拼装信息;
从至少两个存储节点分别获取属于同一个图像的所有子图像,其中所述图像拼装信息被存储在所述存储节点之外的其他存储装置中;
根据所述图像拼装信息将各所述子图像拼装为一个完整图像。
在一个优选例中,所述获取图像拼装信息之后,还包括:对所述图像拼装信息进行解密。
在一个优选例中,所述图像拼装信息包括各所述子图像的拼装顺序或各所述子图像在所述图像的坐标系中的坐标位置。
在一个优选例中,所述图像拼装信息包括每个所述子图像的存储路径;
所述从至少两个存储节点分别获取属于同一个图像的所有子图像,进一步包括:
根据所述图像拼装信息中的子图像存储路径从至少两个存储节点分别获取属于同一个图像的所有子图像。
本申请还公开了一种图像存储系统包括:
拆分装置,用于将一个图像拆分为至少两个子图像,并根据拆分方式生成图像拼装信息;
拼装信息存储装置,用于存储所述子图像拼装信息;
至少两个存储节点,用于存储所述子图像;所述拼装信息存储装置不是所述至少两个存储节点中的任何一个;
路由装置,用于将所述至少两个子图像分别存储到不同的存储节点,其中属于同一个图像的各个子图像至少被存储到两个不同的存储节点中,每个存储节点中存储所述图像的部分子图像。
在一个优选例中,所述拼装信息存储装置还用于在保存所述拼装信息前对所述拼装信息进行加密。
在一个优选例中,所述图像拼装信息包括各所述子图像的拼装顺序或各所述子图像在所述图像的坐标系中的坐标位置。
在一个优选例中,所述图像拼装信息包括每个所述子图像的存储路径。
在一个优选例中,所述路由装置以随机方式确定各所述子图像所对应的存储节点。
在一个优选例中,所述拆分装置在拆分图像时,每一个子图像的大小均不超过预先设定的大小。
在一个优选例中,所述路由装置还用于从所述至少两个存储节点分别获取属于同一个图像的所有子图像;
所述系统还包括拼装装置,用于从所述拼装信息存储装置获取所述图像拼装信息,并根据所述图像拼装信息将各所述子图像拼装为一个完整图像。
在一个优选例中,所述图像拼装信息包括每个所述子图像的存储路径;
所述路由装置根据所述图像拼装信息中的子图像存储路径从至少两个存储节点分别获取属于同一个图像的所有子图像。
在一个优选例中,所述拼装信息存储装置还用于在提取所述图像拼装信息后对所述图像拼装信息先进行解密再输出给所述拼装装置。
本申请还公开了一种图像存储系统包括:
存储器,用于存储计算机可执行指令;以及,
处理器,用于在执行所述计算机可执行指令时实现如前文描述的方法中的步骤。
本申请还公开了一种计算机可读存储介质所述计算机可读存储介质中存储有计算机可执行指令,所述计算机可执行指令被处理器执行时实现如前文描述的方法中的步骤。
本说明书实施方式中,将用户上传的图像拆分为多张子图像后进行分布式存储,系统中保存该图像拼装顺序并进行加密存储,即使图像服务器被黑客登陆后也无法获取用户真实个人证件完整信息。黑客需要拿到图像对应拼装顺序并进行解密,还要知道该图像的子图像的存储位置,才能对子图像进行正确拼装获得完整图像,难度很大。
本说明书中记载了大量的技术特征,分布在各个技术方案中,如果要罗列出本申请所有可能的技术特征的组合(即技术方案)的话,会使得说明书过于冗长。为了避免这个问题,本说明书上述发明内容中公开的各个技术特征、在下文各个实施方式和例子 中公开的各技术特征、以及附图中公开的各个技术特征,都可以自由地互相组合,从而构成各种新的技术方案(这些技术方案均应该视为在本说明书中已经记载),除非这种技术特征的组合在技术上是不可行的。例如,在一个例子中公开了特征A+B+C,在另一个例子中公开了特征A+B+D+E,而特征C和D是起到相同作用的等同技术手段,技术上只要择一使用即可,不可能同时采用,特征E技术上可以与特征C相组合,则,A+B+C+D的方案因技术不可行而应当不被视为已经记载,而A+B+C+E的方案应当视为已经被记载。
附图说明
图1是根据本说明书第一实施方式的图像存储方法流程示意图;
图2是根据本说明书第二实施方式的图像获取方法流程示意图;
图3是根据本说明书第三实施方式的图像存储系统结构示意图;
图4是根据本说明书一个实施例的图像拆分示意图。
具体实施方式
在以下的叙述中,为了使读者更好地理解本申请而提出了许多技术细节。但是,本领域的普通技术人员可以理解,即使没有这些技术细节和基于以下各实施方式的种种变化和修改,也可以实现本申请所要求保护的技术方案。
下面将结合附图对本说明书的实施方式作进一步地详细描述。
本说明书的第一实施方式涉及一种图像存储方法,其流程如图1所示,该方法包括以下步骤:
在步骤102中,将一个图像拆分为至少两个子图像,并根据拆分方式生成图像拼装信息。
图像拼装信息有多种实现方式。在一个实施例中,图像拼装信息包括各子图像的拼装顺序或各子图像在图像的坐标系中的坐标位置。在另一个实施例中,图像拼装信息还可以包括图像的标识,各子图像的标识,等等。在另一个实施例中,图像拼装信息包括每个子图像的存储路径。具体地说,存储路径可以是在各个子图像被存储到不同的存储节点后,把存储位置记录下来作为图像拼装信息的一部分。在另一个实施例中,图形拼装信息中也可以不包括子图像的存储路径,子图像的存储路径可以根据图像拼装信息 中的某个信息计算出来,例如可以对图像标识进行哈希运算,根据哈希运算结果确定每一个子图像的存储位置。又如图像拼装信息可以包括一个随机数,可以根据该随机数确定每一个子图像的存储位置。
拆分的方式可以是多种多样的。可选地,每一个子图像的大小均不超过预先设定的大小。具体地说,可以按照预先设定的长L和宽W从图像中拆分矩形的子图像,如果图像的长度不能被L整除或者图像的宽度不能被W整除,则一部分的子图像的长度会小于L或者宽度小于W。规定子图像尺寸的上限可以防止单个子图像中包含过多的信息,避免举局部的关键信息被一个子图像所泄露。可选地,每个子图像的形状和大小一致,例如可以根据横竖坐标均匀地拆分为16个矩形的子图像。可选地,每个子图像的大小或形状不完全相同,例如有些子图像可以是矩形的,有些子图像可以是三角形的。
此后进入步骤104,将至少两个子图像分别存储到不同的存储节点,其中属于同一个图像的各个子图像至少被存储到两个不同的存储节点中,每个存储节点中存储一个图像的部分子图像。话句话说,任何一个存储节点都不会存储同一个图像的所有子图像。这样可以避免一个存储节点被黑客攻破后一个图像的所有子图像都被泄露。
在一个实施例中,在存储前以随机方式确定各子图像所对应的存储节点。例如一个图像被分割为4个子图像,路由装置将这4个子图像随机地存储到这4个存储节点,每个存储节点存储1个子图像。又如一个图像被分割为16个子图像,路由装置将这16个子图像随机地分配到这5个存储节点,每个存储节点存储的子图像的数目是一个大于1的随机数,例如这5个存储节点分配到的子图像数目分别是5、2、1、4、4。
在另一个实施例中,为各个子图像分配存储位置时也可以不是以随机方式,而是根据预先设定的规则分配,例如根据每个子图像的标识的哈希值确定其存储节点。
在一个实施例中,还可以对子图像进行加密,这样即使子图像被泄露,也无法直接看到子图像的内容,从而可以进一步提高安全性。
此后进入步骤106,存储图像拼装信息。在一个实施例中,图像拼装信息和子图像被存储在不同的存储节点中。具体地说,图像拼装信息被存储到专用的存储装置中,该存储装置不负责存储子图像,从而进一步提高安全性。可选地,在存储之前对图像拼装信息进行加密。
在一些实施例中,步骤106可以先于步骤104执行,或步骤104可以和步骤106并行。
通过将用户上传的图像拆分为多张子图像后进行分布式存储,系统中保存该图像拼装顺序并进行加密存储,即使图像服务器被黑客登陆后也无法获取用户真实个人证件完整信息。
本说明书的第二实施方式涉及一种图像获取方法,其流程如图2所示,该方法包括以下步骤:
在步骤202中,获取图像拼装信息。可选地,从存储装置得到的图像拼装信息是被加密过的,需要对所获取的图像拼装信息进行解密。
此后进入步骤204,从至少两个存储节点分别获取属于同一个图像的所有子图像。其中,图像拼装信息被存储在存储子图像的存储节点之外的其他存储装置中。或者说,图像拼装信息和子图像被存储在不同的存储设备中。
在一个实施例中,图像拼装信息包括每个子图像的存储路径,这样就可以根据图像拼装信息中的子图像存储路径从至少两个存储节点分别获取属于同一个图像的所有子图像。
在另一个实施例中,图形拼装信息中也可以不包括子图像的存储路径,而子图像的存储路径可以根据图像拼装信息中的某个信息计算出来,例如可以对图像标识进行哈希运算,根据哈希运算结果确定每一个子图像的存储位置。又如图像拼装信息可以包括一个随机数,可以根据该随机数确定每一个子图像的存储位置。可以根据计算所得的存储位置从各个存储节点提取各子图像。
在一个实施例中,子图像在存储前被加密,这种情况下需要对所获取的子图像进行解密。
此后进入步骤206,根据图像拼装信息将各子图像拼装为一个完整图像。
在一个实施例中,图像拼装信息包括各子图像的拼装顺序或各子图像在图像的坐标系中的坐标位置。可以根据拼装顺序或坐标位置将各个子图像拼装为一个完整的图像。
第一实施方式是存储方法,而本实施方式是与第一实施方式相对应的获取方法,第一实施方式的相关细节也可以用在本实施方式中,本实施方式的相关细节也可以用在第一实施方式中。
本说明书的第三实施方式涉及一种图像存储系统,其结构如图3所示,该系统包括:
拆分装置,用于将一个图像拆分为至少两个子图像,并根据拆分方式生成图像拼装信息。
拼装信息存储装置,用于存储子图像拼装信息。可选地,被存储的图像拼装信息是加密的,在存储图像拼装信息之前需要先加密,在读取图像拼装信息之后需要先解密。
至少两个存储节点,用于存储子图像。在一个实施例中,存储图像拼装信息的拼装信息存储装置与存储子图像的各存储节点中不重合,或者说图像拼装信息和子图像被存储在不同的存储设备中。
路由装置,用于将至少两个子图像分别存储到不同的存储节点,以及用于从至少两个存储节点分别获取属于同一个图像的所有子图像,其中属于同一个图像的各个子图像至少被存储到两个不同的存储节点中,每个存储节点中存储一个图像的部分子图像。
拼装装置,用于从拼装信息存储装置获取图像拼装信息,并根据图像拼装信息将各子图像拼装为一个完整图像。
路由装置有多种实现方式。在一个实施例中,在存储前以随机方式确定各子图像所对应的存储节点。例如一个图像被分割为4个子图像,路由装置将这4个子图像随机地存储到这4个存储节点,每个存储节点存储1个子图像。又如一个图像被分割为16个子图像,路由装置将这16个子图像随机地分配到这5个存储节点,每个存储节点存储的子图像的数目是一个大于1的随机数,例如这5个存储节点分配到的子图像数目分别是5、2、1、4、4。在另一个实施例中,为各个子图像分配存储位置时也可以不是以随机方式,而是根据预先设定的规则分配,例如根据每个子图像的标识的哈希值确定其存储节点。
图像拼装信息有多种实现方式。可选地,图像拼装信息包括各子图像的拼装顺序或各子图像在图像的坐标系中的坐标位置。在另一个实施例中,图像拼装信息还可以包括图像的标识,各子图像的标识,等等。在另一个实施例中,图像拼装信息包括每个子图像的存储路径。具体地说,存储路径可以是在各个子图像被存储到不同的存储节点后,把存储位置记录下来作为图像拼装信息的一部分,在获取图像时路由装置可以根据图像拼装信息中的子图像存储路径从至少两个存储节点分别获取属于同一个图像的所有子图像。可选地,图形拼装信息中也可以不包括子图像的存储路径,子图像的存储路径可以根据图像拼装信息中的某个信息计算出来,例如可以对图像标识进行哈希运算,根据哈希运算结果确定每一个子图像的存储位置。又如图像拼装信息可以包括一个随机数, 可以根据该随机数确定每一个子图像的存储位置。在获取图像时,路由装置也可以根据拆分的方式确定每一个子图像的存储位置以便读取。
拆分的方式可以是多种多样的。可选地,每一个子图像的大小均不超过预先设定的大小。具体地说,可以按照预先设定的长L和宽W从图像中拆分矩形的子图像,如果图像的长度不能被L整除或者图像的宽度不能被W整除,则一部分的子图像的长度会小于L或者宽度小于W。规定子图像尺寸的上限可以防止单个子图像中包含过多的信息,避免举局部的关键信息被一个子图像所泄露。可选地,每个子图像的形状和大小一致,例如可以根据横竖坐标均匀地拆分为16个矩形的子图像。可选地,每个子图像的大小或形状不完全相同,例如有些子图像可以是矩形的,有些子图像可以是三角形的。
在一个实施例中,图像存储系统还可以包括加密装置和解密装置。其中,加密装置用于对拆分装置输出的子图像进行加密后输出到路由装置,解密装置用于对路由装置输出的子图像进行解密后输出到拼装装置。因为子图像是被加密存储的,即使子图像被泄露,也无法直接看到子图像的内容,从而可以进一步提高安全性。
第一和第二实施方式是与本实施方式相对应的方法实施方式,第一和第二实施方式中的技术细节可以应用于本实施方式,本实施方式中的技术细节也可以应用于第一和第二实施方式。
为了能够更好地理解本说明书的技术方案,下面结合一个具体的例子来进行说明,该例子中罗列的细节主要是为了便于理解,不作为对本申请保护范围的限制。
假定一个身份证图像(文件名为img.jpg)的大小为1000*650像素,在拆分装置中被按照100*100的大小进行拆分,共得到70个子图像,其中60个子图像的大小为100*100,10个子图像的大小为100*50。将这些子图像按照在原图像中的位置进行命名,例如:
img_0_0.jpg的意思为:原图像按网格切割出的第一列第一行的子图像;
img_0_1.jpg的意思为:原图像按网格切割出的第一列第二行的子图像;
img_0_2.jpg的意思为:原图像按网格切割出的第一列第三行的子图像;
img_1_0.jpg的意思为:原图像按网格切割出的第二列第一行的子图像;
……
子图像名称中的数字代表了该子图像在原图像中的位置,如图4所示。将这些子 图像送到路由装置进行存储。路由装置将这些图像随机存储到7个存储节点中,每个存储节点保存10个子图像。然后将每个子图像的存储路径更新图像拼装信息,将图像拼装信息加密后保存到拼装信息存储装置。该图像拼装信息如下:
Figure PCTCN2020075003-appb-000001
其中img.jpg是图像文件名,img_0_0.jpg等是子图像文件名,http://www.x.com/img/sdjlfa/sdfa/dasffs.jpg等是子图像存储路径。
当要获取图像时,首先拼装装置从拼装信息存储装置获取该图像的图像拼装信息,对拼装信息进行解密,从解密的图像拼装信息中得到每一个子图像的存储路径。路由装置根据存储路径读取每一个子图像,发送给拼装装置。该拼装装置根据拼装信息中每一个字图像的位置完成图像的拼装,例如img_0_0.jpg在(0,0)网格,img_0_1.jpg在(0,1)网格,等等。
需要说明的是,本领域技术人员应当理解,上述图像存储系统的实施方式中所示的各模块的实现功能可参照前述图像存储方法和图像获取方法的相关描述而理解。上述图像存储系统的实施方式中所示的各模块的功能可通过运行于处理器上的程序(可执行指令)而实现,也可通过具体的逻辑电路而实现。本说明书实施例上述图像存储系统如果以软件功能模块的形式实现并作为独立的产品销售或使用时,也可以存储在一个计算机可读取存储介质中。基于这样的理解,本说明书实施例的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机、服务器、或者网络设备等)执行本说明书各个实施例所述方法的全部或部分。而前述的存储介质包括:U盘、移动硬盘、只读存储器(ROM,Read Only Memory)、磁碟或者光盘等各种可以存储程序代码的介质。这样,本说明书实施例不限制于任何特定的硬件和软件结合。
相应地,本说明书实施方式还提供一种计算机可读存储介质,其中存储有计算机可执行指令,该计算机可执行指令被处理器执行时实现本说明书的各方法实施方式。计 算机可读存储介质包括永久性和非永久性、可移动和非可移动媒体可以由任何方法或技术来实现信息存储。信息可以是计算机可读指令、数据结构、程序的模块或其他数据。计算机的存储介质的例子包括但不限于,相变内存(PRAM)、静态随机存取存储器(SRAM)、动态随机存取存储器(DRAM)、其他类型的随机存取存储器(RAM)、只读存储器(ROM)、电可擦除可编程只读存储器(EEPROM)、快闪记忆体或其他内存技术、只读光盘只读存储器(CD-ROM)、数字多功能光盘(DVD)或其他光学存储、磁盒式磁带,磁带磁磁盘存储或其他磁性存储设备或任何其他非传输介质,可用于存储可以被计算设备访问的信息。按照本文中的界定,计算机可读存储介质不包括暂存电脑可读媒体(transitory media),如调制的数据信号和载波。
此外,本说明书实施方式还提供一种图像存储系统,其中包括用于存储计算机可执行指令的存储器,以及,处理器。该处理器用于在执行该存储器中的计算机可执行指令时实现上述各方法实施方式中的步骤。其中,该处理器可以是中央处理单元(Central Processing Unit,简称“CPU”),还可以是其他通用处理器、数字信号处理器(Digital Signal Processor,简称“DSP”)、专用集成电路(Application Specific Integrated Circuit,简称“ASIC”)等。前述的存储器可以是只读存储器(read-only memory,简称“ROM”)、随机存取存储器(random access memory,简称“RAM”)、快闪存储器(Flash)、硬盘或者固态硬盘等。本发明各实施方式所公开的方法的步骤可以直接体现为硬件处理器执行完成,或者用处理器中的硬件及软件模块组合执行完成。
需要说明的是,在本专利的申请文件中,诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来,而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下,由语句“包括一个”限定的要素,并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。本专利的申请文件中,如果提到根据某要素执行某行为,则是指至少根据该要素执行该行为的意思,其中包括了两种情况:仅根据该要素执行该行为、和根据该要素和其它要素执行该行为。多个、多次、多种等表达包括2个、2次、2种以及2个以上、2次以上、2种以上。
在本说明书提及的所有文献都被认为是整体性地包括在本说明书的公开内容中, 以便在必要时可以作为修改的依据。此外应理解,以上所述仅为本说明书的较佳实施例而已,并非用于限定本说明书的保护范围。凡在本说明书一个或多个实施例的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本说明书一个或多个实施例的保护范围之内。
上述对本说明书特定实施例进行了描述。其它实施例在所附权利要求书的范围内。在一些情况下,在权利要求书中记载的动作或步骤可以按照不同于实施例中的顺序来执行并且仍然可以实现期望的结果。另外,在附图中描述的过程不一定要求示出的特定顺序或者连续顺序才能实现期望的结果。在某些实施方式中,多任务处理和并行处理也是可以的或者可能是有利的。

Claims (21)

  1. 一种图像存储方法,包括:
    将一个图像拆分为至少两个子图像,并根据拆分方式生成图像拼装信息;
    将所述至少两个子图像分别存储到不同的存储节点,其中属于同一个图像的各个子图像至少被存储到两个不同的存储节点中,每个存储节点中存储所述图像的部分子图像;
    将所述图像拼装信息存储到与所述存储节点之外的其他存储装置中。
  2. 如权利要求1所述的方法,其中,将所述图像拼装信息存储到与所述存储节点之外的其他存储装置中之前,还包括:
    对所述图像拼装信息进行加密。
  3. 如权利要求1所述的方法,其中,所述图像拼装信息包括各所述子图像的拼装顺序或各所述子图像在所述图像的坐标系中的坐标位置。
  4. 如权利要求1所述的方法,其中,所述图像拼装信息包括每个所述子图像的存储路径。
  5. 如权利要求1所述的方法,其中,将所述至少两个子图像分别存储到不同的存储节点,进一步包括:
    在存储前以随机方式确定各所述子图像所对应的存储节点。
  6. 如权利要求1-5中任意一项所述的方法,其中,将一个图像拆分为至少两个子图像的步骤中,每一个子图像的大小均不超过预先设定的大小。
  7. 一种图像获取方法,包括:
    获取图像拼装信息;
    从至少两个存储节点分别获取属于同一个图像的所有子图像,其中所述图像拼装信息被存储在所述存储节点之外的其他存储装置中;
    根据所述图像拼装信息将各所述子图像拼装为一个完整图像。
  8. 如权利要求7所述的方法,其中,获取图像拼装信息之后,还包括:对所述图像拼装信息进行解密。
  9. 如权利要求7所述的方法,其中,所述图像拼装信息包括各所述子图像的拼装顺序或各所述子图像在所述图像的坐标系中的坐标位置。
  10. 如权利要求7所述的方法,其中,所述图像拼装信息包括每个所述子图像的存储路径;
    所述从至少两个存储节点分别获取属于同一个图像的所有子图像,进一步包括:
    根据所述图像拼装信息中的子图像存储路径从至少两个存储节点分别获取属于同 一个图像的所有子图像。
  11. 一种图像存储系统,包括:
    拆分装置,用于将一个图像拆分为至少两个子图像,并根据拆分方式生成图像拼装信息;
    拼装信息存储装置,用于存储所述子图像拼装信息;
    至少两个存储节点,用于存储所述子图像;所述拼装信息存储装置不是所述至少两个存储节点中的任何一个;
    路由装置,用于将所述至少两个子图像分别存储到不同的存储节点,其中属于同一个图像的各个子图像至少被存储到两个不同的存储节点中,每个存储节点中存储所述图像的部分子图像。
  12. 如权利要求11所述的系统,其中,所述拼装信息存储装置还用于在保存所述拼装信息前对所述拼装信息进行加密。
  13. 如权利要求11所述的系统,其中,所述图像拼装信息包括各所述子图像的拼装顺序或各所述子图像在所述图像的坐标系中的坐标位置。
  14. 如权利要求11所述的系统,其中,所述图像拼装信息包括每个所述子图像的存储路径。
  15. 如权利要求11所述的系统,其中,所述路由装置以随机方式确定各所述子图像所对应的存储节点。
  16. 如权利要求11所述的系统,其中,所述拆分装置在拆分图像时,每一个子图像的大小均不超过预先设定的大小。
  17. 如权利要求11-16中任意一项所述的系统,其中,
    所述路由装置还用于从所述至少两个存储节点分别获取属于同一个图像的所有子图像;
    所述系统还包括拼装装置,用于从所述拼装信息存储装置获取所述图像拼装信息,并根据所述图像拼装信息将各所述子图像拼装为一个完整图像。
  18. 如权利要求17所述的系统,其中,所述图像拼装信息包括每个所述子图像的存储路径;
    所述路由装置根据所述图像拼装信息中的子图像存储路径从至少两个存储节点分别获取属于同一个图像的所有子图像。
  19. 如权利要求17所述的系统,其中,所述拼装信息存储装置还用于在提取所述图像拼装信息后对所述图像拼装信息先进行解密再输出给所述拼装装置。
  20. 一种图像存储系统,包括:
    存储器,用于存储计算机可执行指令;以及,
    处理器,用于在执行所述计算机可执行指令时实现如权利要求1至10中任意一项所述的方法中的步骤。
  21. 一种计算机可读存储介质,所述计算机可读存储介质中存储有计算机可执行指令,所述计算机可执行指令被处理器执行时实现如权利要求1至10中任意一项所述的方法中的步骤。
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CN110032877A (zh) * 2019-03-01 2019-07-19 阿里巴巴集团控股有限公司 图像存取方法及其系统
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102193877A (zh) * 2011-04-15 2011-09-21 北京邮电大学 一种基于三维空间结构的数据拆分置乱和恢复方法
CN105760781A (zh) * 2016-03-02 2016-07-13 四川师范大学 有序可推演大数据文件的存储方法、恢复方法和操作方法
CN106875362A (zh) * 2017-02-20 2017-06-20 上海海洋大学 一种遥感图像的安全外包去噪方法
CN109376122A (zh) * 2018-09-25 2019-02-22 深圳市元征科技股份有限公司 一种文件管理方法、系统及区块链节点设备和存储介质
CN110032877A (zh) * 2019-03-01 2019-07-19 阿里巴巴集团控股有限公司 图像存取方法及其系统

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10043017B2 (en) * 2013-04-15 2018-08-07 Paul Lewis Systems and methods for jurisdiction independent data storage in a multi-vendor cloud environment
CN106130963A (zh) * 2016-06-15 2016-11-16 青岛恒金源电子科技有限公司 一种云盘数据文件安全保护方法和系统
CN107506264A (zh) * 2017-08-28 2017-12-22 济南浪潮高新科技投资发展有限公司 一种云端数据存储方法和装置
CN109063498A (zh) * 2018-07-27 2018-12-21 深圳市新名泽科技有限公司 数字资产存储方法、装置、恢复方法及装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102193877A (zh) * 2011-04-15 2011-09-21 北京邮电大学 一种基于三维空间结构的数据拆分置乱和恢复方法
CN105760781A (zh) * 2016-03-02 2016-07-13 四川师范大学 有序可推演大数据文件的存储方法、恢复方法和操作方法
CN106875362A (zh) * 2017-02-20 2017-06-20 上海海洋大学 一种遥感图像的安全外包去噪方法
CN109376122A (zh) * 2018-09-25 2019-02-22 深圳市元征科技股份有限公司 一种文件管理方法、系统及区块链节点设备和存储介质
CN110032877A (zh) * 2019-03-01 2019-07-19 阿里巴巴集团控股有限公司 图像存取方法及其系统

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