WO2015021753A1

WO2015021753A1 - Data compression method, computer system and device

Info

Publication number: WO2015021753A1
Application number: PCT/CN2014/070865
Authority: WO
Inventors: 陈普; 黄杨锋
Original assignee: 华为技术有限公司
Priority date: 2013-08-15
Filing date: 2014-01-20
Publication date: 2015-02-19
Also published as: CN104376584B; CN104376584A

Abstract

An embodiment of the present invention relates to a data compression method, computer system and device, the method comprising: receiving a data compression request; determining a feature identifier of the image data to be compressed; and according to the feature identifier, acquiring the stored compression data corresponding to the feature identifier so as to obtain the compression data of the image data to be compressed without employing a compression algorithm, thus avoiding repeated compression, improving data compression efficiency, and saving system resources.

Description

Data compression method, computer system and device

Embodiments of the present invention relate to computer technology, and in particular, to a data compression method, computer system, and apparatus.

Background technique

Data compression can reduce the size of the original data, facilitate network transmission, and reduce the occupation of storage space. It is widely used in many fields. In the prior art, the data is compressed by first receiving the data to be compressed of the application module through the compression interface, and then compressing the data to be compressed by using a compression algorithm, and then returning the compressed data to the application through the compression interface after the compression is completed. Module.

The prior art is to directly compress the data generated by the application module. However, in some application scenarios, the application module generates a large amount of data that needs to be compressed. For example, in a virtual desktop infrastructure (VDI) scenario, multiple virtual machines generate data compression requirements at the same time, which causes the server to have a large amount of data to be compressed. At this time, the system CPU utilization is very high, which is generated in the system. The bottleneck of data compression leads to inefficient data processing and large system resource consumption.

Summary of the invention

Embodiments of the present invention provide a data compression method, computer system, and apparatus to improve data compression efficiency.

In a first aspect, the embodiment of the present invention provides a data compression method, where the method includes: receiving a data compression request, where the data compression request indicates that the picture data to be compressed is compressed;

Determining the feature identifier of the picture data to be compressed, wherein the feature identifier is used to represent the picture data to be compressed, and the picture data with the same feature identifier has the same compressed data; according to the picture data to be compressed Feature identifier, acquiring compressed data corresponding to the feature identifier saved by the compressed data storage module; Returning a data compression response, the data compression response carrying compressed data corresponding to the feature identifier acquired from the compressed data storage module.

With reference to the first aspect, in a first possible implementation, the determining the feature identifier of the to-be-compressed picture data includes: calculating a feature identifier of the picture data to be compressed, where the feature identifier includes cyclic redundancy Code or Hamming code.

With reference to the first aspect, in a second possible implementation, the method further includes: determining whether the picture data to be compressed meets a condition of compression acceleration, and if the condition of the compression acceleration is met, performing the And the step of acquiring, by the feature identifier of the image data to be compressed, the compressed data corresponding to the feature identifier saved by the compressed data storage module.

With reference to the second possible implementation of the first aspect, in a third possible implementation, the determining whether the picture data to be compressed meets the conditions of the compression acceleration includes:

Determining whether the resource used for compressing the picture data to be compressed exceeds a first threshold, and if yes, determining that the picture data to be compressed satisfies a condition of compression acceleration; or determining an attribute of the picture data to be compressed Whether the value exceeds the second threshold, if yes, determining that the picture data to be compressed satisfies the condition of compression acceleration, and the attribute value includes any one of the following factors or any combination thereof: size, length, width or bit depth of the picture data; Or,

Determining whether the complexity of the picture data to be compressed exceeds a third threshold, and if so, determining that the picture data to be compressed satisfies a condition of compression acceleration.

With reference to any possible implementation of the first aspect, in a fourth possible implementation, the method further includes: establishing the compressed data storage module, where the compressed data storage module is configured to save a compressed data set of picture data, the compressed data set storing compressed data of different picture data by using the feature identifier as an index.

With reference to the fourth possible implementation manner of the first aspect, in a fifth possible implementation manner, the acquiring, by the feature identifier of the image data to be compressed, acquiring the feature identifier saved by the compressed data storage module Before compressing the data, the method further includes: determining whether the compressed data storage module saves the compressed data corresponding to the feature identifier, and if yes, performing the according to the compressed The feature identifier of the picture data is obtained by the step of acquiring the compressed data corresponding to the feature identifier saved by the compressed data storage module.

In a second aspect, the embodiment of the present invention provides an apparatus for data compression, where the apparatus includes: a receiving unit, configured to receive a data compression request, where the data compression request indicates compression of the picture data to be compressed;

a determining unit, configured to determine a feature identifier of the picture data to be compressed, where the feature identifier is used to represent the picture data to be compressed, and the picture data with the same feature identifier has the same compressed data;

And an acquiring unit, configured to obtain, according to the feature identifier of the picture data to be compressed determined by the determining unit, compressed data corresponding to the feature identifier saved by the compressed data storage module;

And a response unit, configured to return a data compression response, where the data compression response carries compressed data corresponding to the feature identifier acquired from the compressed data storage module.

With reference to the second aspect, in a first possible implementation, the determining unit is specifically configured to: calculate a feature identifier of the picture data to be compressed, where the feature identifier includes a cyclic redundancy code or a Hamming code.

With reference to the second aspect, in a second possible implementation, the apparatus further includes: a classification unit, configured to determine whether the picture data to be compressed meets a condition of compression acceleration; determining, in the classification unit, the to-be-determined When the compressed image data meets the condition of the compression acceleration, the acquiring unit is configured to acquire, according to the feature identifier of the image data to be compressed, the compressed data corresponding to the feature identifier saved by the compressed data storage module. .

With reference to the second possible implementation of the second aspect, in a third possible implementation, the classification unit is specifically configured to:

Determining whether the resource used for compressing the picture data to be compressed exceeds a first threshold, and if yes, determining that the picture data to be compressed satisfies a condition of compression acceleration; or determining an attribute of the picture data to be compressed Whether the value exceeds the second threshold, and if yes, determining that the picture data to be compressed satisfies the condition of compression acceleration, and the attribute value includes any of the following factors: One or any combination thereof: the size, length, or depth of the picture data; or,

With reference to any possible implementation of the second aspect, in a fourth possible implementation, the compressed data storage module is disposed inside or outside the data compression device, and is configured to save compressed data of the picture data. The set, the compressed data set uses the feature identifier as an index to store compressed data of different picture data.

With reference to the fourth possible implementation of the second aspect, in a fifth possible implementation, the determining unit is further configured to: determine whether the compressed data storage module saves the compressed data corresponding to the feature identifier; The acquiring unit is specifically configured to: when the determining unit determines that the compressed data storage module saves the compressed data corresponding to the feature identifier, acquire the compressed data according to the feature identifier of the image data to be compressed. The feature saved by the pipe module identifies the corresponding compressed data.

In a third aspect, the embodiment of the present invention provides a data compression system, where the system includes: a data compression device, configured to receive a data compression request, where the data compression request indicates compression of the picture data to be compressed, and determines the to-be-determined a feature identifier of the compressed picture data, where the feature identifier is used to represent the picture data to be compressed, and the picture data with the same feature identifier has the same compressed data, and is obtained according to the feature identifier of the picture data to be compressed. Compressing data corresponding to the feature identifier saved by the compressed data storage module, and returning a data compression response, where the data compression response carries compressed data corresponding to the feature identifier acquired from the compressed data storage module; a storage module, configured to store a compressed data set of the picture data, where the compressed data set uses the feature identifier as an index to store compressed data of different picture data.

In the embodiment of the present invention, after the data compression request is received, the feature identifier of the picture data to be compressed is determined, and according to the feature identifier of the picture data to be compressed, the compressed data storage module is saved. The feature identifiers the compressed data, and the image data to be compressed is obtained by compressing the image data to be compressed without calling a compression algorithm. The data is reduced, thereby avoiding the repeated compression of the data, improving the data compression efficiency, and effectively saving system resources. Compressed data of picture data Compressed data of picture data Compressed data of picture data. DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the prior art or the embodiments will be briefly described below. Obviously, the drawings in the following description are only some of the present invention. For the embodiments, those skilled in the art can obtain other drawings according to the drawings without any creative work.

FIG. 1 is a flowchart of a method according to an embodiment of the present invention;

2 is a flow chart of still another method according to an embodiment of the present invention;

3 is a flow chart of still another method according to an embodiment of the present invention;

4 is a composition diagram of a data compression apparatus according to an embodiment of the present invention; FIG. 5 is a composition diagram of another data compression apparatus according to an embodiment of the present invention; FIG. 6 is a schematic diagram of a data compression apparatus according to an embodiment of the present invention. A composition diagram of a data compression apparatus; FIG. 7 is a composition diagram of a data compression system according to an embodiment of the present invention; and FIG. 8 is a composition diagram of a computer according to an embodiment of the present invention.

detailed description

The embodiment of the invention provides a data compression method, a computer system and a device. When data needs to be compressed, directly acquiring the saved compressed data can avoid repeated compression work, improve data processing efficiency, and reduce processor resource consumption.

The following describes an embodiment of a data compression method. As shown in FIG. 1 , the flow of the data compression method provided by the embodiment of the present invention includes:

101: Receive a data compression request, the data compression request indicating compression of the picture data to be compressed.

For example, the data compression module obtains the data compression triggered by the application module from the operating system. Or the data compression module receives the data compression request, and acquires the image data to be compressed according to the data compression request.

Preferably, the picture data to be compressed may be one frame of picture data or multiple frames of picture data.

102: Determine a feature identifier of the picture data to be compressed, where the feature identifier is used to represent the picture data to be compressed, and the picture data with the same feature identifier has the same compressed data.

The determining, by the data compression module, the feature identifier of the image data to be compressed from the application module or the operating system, or the data compression module obtains the The feature identifier of the compressed picture data is described.

Preferably, the feature identifier of the picture data to be compressed may include a feature identifier of each frame of picture data included in the picture data to be compressed, and the feature identifier of each frame of picture data may be used to represent the each frame. Picture data, picture data with the same feature identification has the same compressed data. For example, the feature identifier of each frame of picture data may be an image feature code of the frame data of each frame.

103: Acquire, according to the feature identifier of the picture data to be compressed, the compressed data corresponding to the feature identifier saved by the compressed data storage module.

Specifically, the compressed data storage module is configured to save a compressed data set, that is, to save different compressed data obtained by compressing each picture data by using a compression algorithm, and simultaneously store the corresponding relationship between each compressed data and its corresponding feature identifier. . The image data with the same feature identifier has the same compressed data, so the compressed data saved by the compressed data storage module can be obtained according to the feature identifier of the image data to be compressed, and the acquired compressed data is used as the to-be-compressed data. Compressed data of compressed picture data.

104: Return a data compression response, where the data compression response carries the acquired compressed data corresponding to the feature identifier.

In the embodiment of the present invention, after receiving the data compression request, determining the to-be-compressed graph And obtaining, according to the feature identifier of the image data to be compressed, the compressed data corresponding to the feature identifier saved by the compressed data storage module, and carrying the acquired compressed data in the data compression response Back, avoiding repeated compression work, improving data compression efficiency and effectively saving system resources.

In another embodiment of the present invention, as shown in FIG. 2, the method may specifically include:

201: Establish a compressed data storage module, where the compressed data storage module is configured to save a compressed data set of the picture data.

Before the data compression module receives the data compression request, the method further includes establishing a compressed data storage module, the compressed data storage module is configured to save a compressed data set of the image data, and the compressed data set is characterized by the feature of the image data. The compressed data of the different picture data is saved as an index, so the data compression module may obtain the compressed data corresponding to the saved feature identifier of the picture data from the compressed data storage module according to the feature identifier of the picture data, The compressed data storage module may be disposed inside or outside the data compression device.

The foregoing step 201 is an optional step. In other embodiments, the existing storage module may be used to save the compressed data set. It is not necessary to perform this step to establish a compressed data storage module.

202: Receive a data compression request, and obtain image data to be compressed according to the data compression request.

When the user accesses the application module, the user needs to compress the image data, and the application module triggers the operating system to perform processing, and the operating system instructs the data compression module to compress the image data to be compressed, and the data compression module receives the data compression module. After the data compression request, the image data to be compressed carried in the data compression request may be directly obtained, or the related module may be queried according to the indication in the data compression request to obtain the image data to be compressed.

203: Determine a feature identifier of the picture data to be compressed, where the feature identifier is used to represent picture data, and the picture data with the same feature identifier has the same compressed data.

Preferably, if the picture data to be compressed is one frame of picture data, determining a feature identifier of the one frame of picture data, if the picture data to be compressed is multi-frame picture data, determining The feature identifier of each frame of picture data.

The determining, by the data compression module, the feature identifier of the image data to be compressed, or the data compression module determines that the to-be-compressed is determined by the data compression module. The feature identifier of the picture data, the feature identifier may be an image feature code, and the specific expression may be a character sequence or a digital sequence, for example, may be a Cyclic Redundancy Code (CRC), a Hamming code, but is not limited thereto. .

The data compression module calculates the feature identifier of the image data to be compressed, and the image data to be compressed is calculated by using different algorithms. For example, the image data may be regarded as a binary number, and the calculation of the CRC32 may be referred to. The method obtains a feature identifier of the picture data, where the CRC may further include a CRC8, a CRC12, a CRC16, a CRC32, a CRC32c, and the like.

And determining, by the compressed data storage module, the compressed data corresponding to the feature identifier. If it is determined that the compressed data storage module saves the compressed data corresponding to the feature identifier, step 205 is performed, otherwise step 206 is performed. .

Specifically, the compressed data storage module is configured to save the compressed data set, that is, to save different compressed data obtained by compressing each picture data by using a compression algorithm, and simultaneously save each compressed data and its corresponding feature identifier. Corresponding relationship, so the data compression module may determine, according to the feature identifier of the picture data to be compressed, whether the compressed data storage module stores the compressed data corresponding to the feature identifier, that is, whether the file to be compressed is saved. The compressed data of the picture data.

205: Acquire compressed data corresponding to the feature identifier saved by the compressed data storage module, and then perform step 208.

The image data with the same feature identifier has the same compressed data, and the compressed data corresponding to the feature identifier saved by the compressed data storage module can be obtained according to the feature identifier of the image data to be compressed, and the acquired data is obtained. The compressed data is used as compressed data of the picture data to be compressed.

206: compressing the image data to be compressed by using a compression algorithm to obtain a corresponding pressure Reduce the data, and then go to step 207.

If it is determined that the compressed data storage module does not store the compressed data corresponding to the feature identifier, the data compression module compresses the image data to be compressed by using a compression algorithm to obtain compressed data of the image data to be compressed. Then, step 207 is performed.

The compression algorithm may be a lossy compression algorithm or a lossless compression algorithm, which is not limited herein.

207: The compressed data obtained by the compression is saved in the compressed data storage module.

The compressed data obtained by the compression is saved in the compressed data storage module, so that when the system needs to compress the image data to be compressed next time, the system can directly obtain the compressed data storage module without repeating Compression.

Specifically, the compressed data obtained by the compression may be associated with the feature identifier of the image data to be compressed, and then saved, so that the compressed data can be queried by the feature identifier; preferably, the execution is performed. Before the saving operation of the step 207, the following steps may be further performed:

207 ′: determining whether the picture data to be compressed satisfies the condition of compression acceleration, and if the condition of the compression acceleration is met, performing step 207, otherwise performing step 208.

Specifically, after compressing the to-be-compressed picture data by using a compression algorithm, the data compression module may further determine whether the picture data to be compressed satisfies a condition of compression acceleration, and if the condition of the compression acceleration is met, the step may be performed. 207. If the condition of the compression acceleration is not met, step 208 may be performed.

Determining whether the picture data to be compressed satisfies the condition of compression acceleration, specifically, the following manner may be adopted:

Determining a size of a system resource that is compressed by the image data, and comparing the system resource consumed by the compressed image data with a preset first threshold. If the first threshold is exceeded, the image data is compressed. If the image data with a large resource is consumed, step 207 may be performed. The compressed data of the image data to be compressed is saved in the compressed data storage module. If the first threshold is not exceeded, the image data belongs to the image data with less compressed consumption resources, and may not be saved. Compress the compressed data of the compressed image data, and directly execute the steps

207, wherein the first threshold is an empirical value; or

Determining whether the attribute value of the picture data to be compressed exceeds a second threshold, and if yes, determining that the picture data to be compressed satisfies a condition of compression acceleration, where the attribute value includes any one of the following factors or any combination thereof: The size, length, or bit depth of the data, specifically, determining whether the attribute value of the picture data to be compressed exceeds a second threshold may be determining whether the size, length, or depth or depth of the picture data to be compressed is If the second threshold is exceeded, it may be determined whether the size, length, and depth of the picture data to be compressed exceed the second threshold or whether two of the parameter values exceed the second threshold, and if so, Determining that the picture data to be compressed satisfies the condition of the compression acceleration, and the picture data to be compressed belongs to the picture data with a large compression consumption resource, wherein the attribute value of the picture data to be compressed may be from the application module. Obtaining, the second threshold is an empirical value, and the second threshold may be a value, or may be a plurality of values Collection; or

Determining whether the complexity of the picture data to be compressed exceeds a third threshold. If yes, determining that the picture data to be compressed satisfies a condition of compression acceleration, specifically, determining the complexity of the picture data to be compressed. Whether the number of colors of the pixels of the picture data to be compressed exceeds the third threshold, and if yes, determining that the picture data to be compressed satisfies the condition of compression acceleration, the to-be-compressed The picture data belongs to the picture data with higher complexity, and compressing the picture data will consume a larger system resource, and the number of colors of the pixels of the picture to be compressed may be obtained from the application module, or may be the data compression. The module obtains by using the image data to be compressed by an algorithm, and the third threshold belongs to an empirical value.

208: Return a data compression response, where the data compression response carries compressed data of the picture data to be compressed.

The data compression module returns a data compression response to the application module, such that the application The client corresponding to the sequence module can obtain the compressed data of the picture data to be compressed, and can perform picture display according to the compressed data.

Specifically, when it is determined that the compressed data storage module saves the compressed data corresponding to the feature identifier of the image data to be compressed, the data compression module carries the acquired compressed data corresponding to the feature identifier in data compression. Returning from the response, when it is determined that the compressed data storage module does not save the compressed data corresponding to the feature identifier of the picture data to be compressed, the data compression module carries the compressed data compressed by the compression algorithm in the data compression response. Return in.

In the embodiment of the present invention, after the data compression module receives the data compression request, it may first determine whether the compressed data storage module stores the compressed data of the image data to be compressed, and if so, from the The compressed data storage module obtains the compressed data of the image data to be compressed, avoids repeated compression work, and effectively saves system resources. If not, the compression algorithm is used to obtain compressed data of the image data to be compressed. And compressing the compressed data of the picture data in the compressed data storage module to improve and update the compressed data storage module, so that when the compressed data of the picture data is needed next time, the compression is not repeated. The picture data.

Preferably, after the data compression is completed, it may be further determined whether the picture data to be compressed satisfies the condition of the compression acceleration, and if the condition of the compression acceleration is met, the picture data belongs to the picture data with a large compression consumption resource, and the picture is The compressed data of the data is saved, so that when the compressed data of the picture data is needed next time, the compressed picture data is not required to be consumed by a large system resource. If the condition of the compression acceleration is not satisfied, the picture data is not a compressed resource. For larger picture data, the compression data can be directly used to obtain the compressed data of the picture data, which not only utilizes the system resources reasonably, but also saves the storage space of the system. According to

In another embodiment of the present invention, as shown in FIG. 3, the method may specifically include:

301: Establish a compressed data storage module, where the compressed data storage module is configured to save a compressed data set of the picture data.

Before the data compression module receives the data compression request, the method further includes establishing the compressed data a storage module, the compressed data storage module is configured to store a compressed data set of the picture data, and the compressed data set uses the feature identifier of the picture data as an index to store compressed data of different picture data, so the data compression module may The compressed data corresponding to the feature identifier of the saved image data is obtained from the compressed data storage module according to the feature identifier of the image data, and the compressed data storage module may be disposed inside or outside the data compression device.

302: Receive a data compression request, and obtain image data to be compressed according to the data compression request.

303: Determine whether the picture data to be compressed satisfies the condition of compression acceleration. If the condition of the compression acceleration is met, go to step 304, otherwise go to step 309.

After receiving the data compression request, the data compression module may further determine whether the picture data to be compressed satisfies the condition of compression acceleration, and if the condition of the compression acceleration is met, it indicates that the picture data belongs to picture data with large compression cost resources, and the system The compressed data of the picture data may have been saved, and the process of acquiring the compressed data of the picture data may be directly performed in steps 304 to 306, that is, when compression is required, the system directly acquires the pre-stored picture to be compressed. The compressed data of the data, thereby effectively saving system resources and improving the efficiency of data compression.

The determining whether the picture data to be compressed satisfies the condition of compression acceleration may be specifically implemented as follows:

Determining whether the resource used for compressing the picture data to be compressed exceeds a first threshold, and if yes, determining that the picture data to be compressed satisfies a condition of compression acceleration; or determining an attribute of the picture data to be compressed Whether the value exceeds the second threshold, and if yes, determining that the picture data to be compressed satisfies the condition of compression acceleration, and the attribute value includes any of the following factors: One or any combination thereof: the size, length, or depth of the picture data. Specifically, determining whether the attribute value of the picture data to be compressed exceeds a second threshold may be determining the picture data to be compressed. Whether the size, the length or the width, or the bit depth exceeds the second threshold, may further be determining whether the size, the length and the width, and the bit depth of the picture data to be compressed exceed the second threshold or whether two of the parameter values exceed The second threshold, if yes, determining that the picture data to be compressed meets the condition of the compression acceleration, the picture data to be compressed belongs to the picture data with a large compression consumption resource, wherein the attribute of the picture data to be compressed The value may be obtained from the application module, the second threshold is an empirical value, and the second threshold may be a value or a set of multiple values; or

Determining whether the complexity of the picture data to be compressed exceeds a third threshold. If yes, determining that the picture data to be compressed satisfies a condition of compression acceleration, specifically, determining the complexity of the picture data to be compressed. Whether the number of colors of the pixels of the picture data to be compressed exceeds the third threshold, and if yes, determining that the picture data to be compressed satisfies the condition of compression acceleration, the to-be-compressed The picture data belongs to the picture data with higher complexity, and compressing the picture data will consume a larger system resource, and the number of colors of the pixels of the picture to be compressed may be obtained from the application module, or may be the data compression. The module obtains by using the image data to be compressed by an algorithm, and the third threshold belongs to an empirical value. .

304: Determine a feature identifier of the picture data to be compressed, where the feature identifier is used to represent picture data, and the picture data with the same feature identifier has the same compressed data.

After receiving the data compression request, the data compression module determines the feature identifier of the image data to be compressed, and the determining the feature identifier of the image data to be compressed may be performed after step 302, and may also be performed before step 302. The embodiments of the present invention are not limited herein.

The determining the feature identifier of the image data to be compressed may be: acquiring the feature identifier of the image data to be compressed from the application module, or obtaining, by the data compression module, the image data to be compressed. The feature identifier may be an image feature code, and the specific expression may be a character sequence or a digital sequence, for example, may be a cyclic redundancy code (Cyclic) Redundancy Code, CRC), Hamming code, but not limited to this, the data compression module calculates the feature identifier of the image data to be compressed, and may calculate the image data to be compressed by using different algorithms, for example, The picture data is regarded as a binary number, and the feature identifier of the picture data is determined according to the calculation manner of the CRC32, wherein the CRC may further include CRC8, CRC12, CRC16, CRC32, CRC32c, and the like.

Preferably, if the picture data to be compressed is one frame of picture data, determining a feature identifier of the one frame of picture data, and if the picture data to be compressed is multi-frame picture data, determining each picture of the frame The feature identifier of the data.

305: Determine whether the compressed data storage module saves the compressed data corresponding to the feature identifier. If it is determined that the compressed data storage module saves the compressed data corresponding to the feature identifier, go to step 306, otherwise go to step 307. .

Specifically, the compressed data storage module is configured to save the compressed data set, that is, to save different compressed data obtained by compressing each picture data by using a compression algorithm, and simultaneously save each compressed data and its corresponding feature identifier. Corresponding relationship, so the data compression module may determine, according to the feature identifier of the picture data to be compressed, whether the compressed data storage module stores the compressed data corresponding to the feature identifier, that is, whether the file to be compressed is saved. The compressed data of the picture data. Compressed data of image data

306: Acquire compressed data corresponding to the feature identifier saved in the compressed data storage module, and then perform step 309.

And if the data compression module determines that the compressed data corresponding to the feature identifier is saved, the compressed data corresponding to the saved feature identifier is obtained from the compressed data storage module, and the image data with the same feature identifier has the same compressed data. Therefore, the acquired compressed data can be used as the compressed data of the picture data to be compressed, thereby avoiding repeated compression work.

307: Compress the image data to be compressed by using a compression algorithm to obtain corresponding compressed data, and then perform step 308.

If it is determined that the compressed data storage module does not save the compression number corresponding to the feature identifier The data compression module compresses the image data to be compressed by using a compression algorithm to obtain compressed data of the image data to be compressed, and then performs step 308.

308: Save the compressed compressed data in the compressed data storage module, and then perform step 310.

Specifically, the compressed compressed data may be associated with the feature identifier of the image data to be compressed, and then saved, so that the compressed data can be queried by the feature identifier;

309: Compress the image data to be compressed by using a compression algorithm to obtain corresponding compressed data, and then perform step 310.

If it is determined that the picture data to be compressed does not satisfy the condition of the compression acceleration, it indicates that the picture data to be compressed belongs to the picture data with less compression cost resources, and the data compression module directly acquires the picture data to be compressed by using a compression algorithm. The data is compressed, and after this step is completed, step 310 is performed.

310: Return a data compression response, where the data compression response carries compressed data of the picture data to be compressed.

The data compression module returns a data compression response to the application module, so that the client corresponding to the application module can obtain the compressed data of the picture data to be compressed, and can perform picture display according to the compressed data.

In the embodiment of the present invention, after receiving the data compression request, the data compression module determines whether the compressed data storage module saves the compressed data of the picture data to be compressed, and if so, from the compression Obtaining the saved image data to be compressed in the data storage module Compressing data, avoiding repeated compression work, and effectively saving system resources. If not saved, the compressed data is used to obtain compressed data of the image data to be compressed, and the compressed data of the image data is stored in the compressed data storage module. The saving is performed to improve and update the compressed data storage module, so that when the compressed data of the image data is needed next time, the image data is not repeatedly compressed.

Further, in the embodiment of the present invention, after receiving the data compression request, the data compression module further includes determining whether the picture data to be compressed satisfies a condition of compression acceleration, and if the condition of compression acceleration is met, The process of acquiring the compressed data of the image data to be compressed is accelerated, that is, when the compressed data corresponding to the feature identifier of the image data to be compressed is saved, the saved data is directly obtained from the compressed data storage module. The compressed data corresponding to the feature identifier avoids the compression of the image data with large compression resources, so that the process of acquiring the compressed data of the image data is accelerated, further saving system resources and improving data compression efficiency. The method of the embodiment of the present invention can be applied to a VDI scenario. The virtual machine corresponding to different clients can save the compressed data of different picture data in the same compressed data storage module, and the compressed data storage module can be set in the virtual On the machine or the PC, if the first picture data needs to be compressed by the plurality of clients, or the first client needs to compress the first picture data multiple times, the first data can be directly obtained from the compressed data storage module. The compressed data of the picture data avoids the repeated compression work. In addition, the compressed data of the picture data to be compressed may be saved in the compressed data storage module of the virtual machine where the local application is located, so that the local application needs When the image data to be compressed is repeatedly compressed, it is directly obtained from the compressed data storage module of the virtual machine, which avoids repeated compression of the data, improves the efficiency of data compression, and obtains the image data to be compressed locally. The real-time and rapid communication is guaranteed.

Apparatus apparatus of the present invention

The data compression device provided in the embodiment of the present invention is applied to a computer system. As shown in FIG. 4, the device 400 includes:

The receiving unit 401 is configured to receive a data compression request, where the data compression request indicates that the picture data to be compressed is compressed; The determining unit 402 is configured to determine a feature identifier of the picture data to be compressed, where the feature identifier is used to represent the picture data to be compressed, and the picture data with the same feature identifier has the same compressed data.

The obtaining unit 403 is configured to obtain compressed data corresponding to the feature identifier saved by the compressed data storage module according to the feature identifier of the image data to be compressed.

The response unit 404 is configured to return a data compression response, where the data compression response carries the acquired compressed data corresponding to the feature identifier.

The image data to be compressed may be acquired according to the data compression request, and the image data to be compressed may be one frame of image data or multiple frames of image data, and the determining unit 402 determines characteristics of the image data to be compressed. The identifier may be a feature identifier of the image data to be compressed obtained from the application module or the operating system, or may be obtained by the determining unit 402 to obtain the feature identifier of the image data to be compressed.

In the embodiment of the present invention, the compressed data storage module is configured to save a compressed data set, that is, to save different compressed data obtained by compressing each picture data by using a compression algorithm, and simultaneously save each compressed data and corresponding features thereof. The determining unit 402 determines the feature identifier of the picture data to be compressed after the receiving unit 401 receives the data compression request, and the acquiring unit 403 is configured according to the feature of the picture data to be compressed. Identifying, by the compressed data storage module, the compressed data corresponding to the saved feature identifier, the response unit 404 returning a data compression response carrying the acquired compressed data corresponding to the feature identifier, and avoiding data Repeated compression work improves data compression efficiency and saves system resources.

In another apparatus embodiment of the present invention, as shown in FIG. 5, the data compression apparatus 500 may include: a receiving unit 501, a determining unit 502, an obtaining unit 503, a response unit 504, a compressed data storage module 505, and a The second compression unit 506, wherein, in another embodiment, the compressed data storage module 505 can also be disposed outside the data compression device 500.

The compressed data storage module 505 is configured to store a compressed data set of the picture data, and the compressed data set 505 stores the pressure of different picture data by using the feature identifier of the picture data as an index. The data compression device 500 is configured to obtain the compressed data corresponding to the saved feature identifier of the image data from the compressed data storage module 505 according to the feature identifier of the image data.

Specifically, the user generates a requirement for compressing the image data when accessing the application module, the application module triggers an operating system to perform processing, and the operating system instructs the data compression device to compress the image data to be compressed, The receiving unit 501 is configured to receive a data compression request, and obtain image data to be compressed according to the data compression request, where the receiving unit 501 may directly obtain the image data to be compressed carried in the data compression request, or may The querying related module in the data compression request acquires the picture data to be compressed, wherein the data compression request indicates that the picture data to be compressed is compressed.

After the receiving unit 501 receives the data compression request, the determining unit 502 is configured to determine a feature identifier of the picture data to be compressed, and determine, by using the feature identifier, whether the compressed data storage module 505 is saved. The feature identifier corresponds to the compressed data, where the feature identifier is used to represent the image data to be compressed, and the image data with the same feature identifier has the same compressed data. Specifically, the determining unit 502 may The application module obtains the feature identifier of the image data to be compressed, and the determining unit 502 may obtain the feature identifier of the image data to be compressed, where the feature identifier may be an image feature code, and the specific expression form. It may be a character sequence or a digital sequence, and may be, for example, a Cyclic Redundancy Code (CRC), a Hamming code, but is not limited thereto.

The obtaining unit 503 is configured to acquire the compressed data storage module 505 according to the feature identifier when the determining unit 502 determines that the compressed data storage module 505 stores the compressed data corresponding to the feature identifier. The compressed data corresponding to the feature identifiers may be the compressed data corresponding to the feature identifiers, and the compressed data corresponding to the acquired feature identifiers may be used as the compressed data of the image data to be compressed.

The response unit 504 is configured to return a data compression response that carries the compressed data corresponding to the feature identifier acquired by the acquiring unit 503. The second compression unit 506 is configured to compress the image data to be compressed by using a compression algorithm when the determining unit 502 determines that the compressed data storage module 505 does not save the compressed data corresponding to the feature code. The compression data of the picture data to be compressed is obtained, where the compression algorithm may be a lossy compression algorithm or a lossless compression algorithm, which is not limited herein.

The compressed data storage module 505 is further configured to save the compressed data compressed by the second compression unit 506 by using a compression algorithm, so that the next time the system needs to compress the image data to be compressed, the compressed data may be directly Obtaining in the storage module 505, the repeated compression is not required. Specifically, the compressed compressed data may be associated with the feature identifier of the image data to be compressed, and then saved, so that the feature identifier is saved. The compressed data can be queried.

The response unit 504 is further configured to return a data compression response carrying the compressed data compressed by the second compression unit 506 by using a compression algorithm.

Preferably, the device may further include:

The categorizing unit 507 is configured to determine whether the picture data to be compressed satisfies the condition of the compression acceleration; the compressed data storage module 505 is specifically configured to trigger the determination of the acknowledgment when the picture data to be compressed satisfies the condition of the compression acceleration The unit 502 determines, according to the feature identifier, whether the compressed data storage module 505 stores the compressed data corresponding to the feature identifier, or saves the compressed data that is compressed by the second compression unit 506 by using a compression algorithm;

In another preferred embodiment, the determining whether the picture data to be compressed meets the condition of the compression acceleration includes:

Determining a size of a system resource that is compressed by the image data, and comparing the system resource consumed by the compressed image data with a preset first threshold. If the first threshold is exceeded, the image data is compressed. The compressed data of the image data to be compressed may be saved in the compressed data storage module. If the first threshold is not exceeded, the image data belongs to the compressed consumption resource. Small picture data, can not be saved The compressed data of the picture data to be compressed, wherein the first threshold is an empirical value; or determining whether the attribute value of the picture data to be compressed exceeds a second threshold, and if yes, determining the picture to be compressed The data satisfies the condition of the compression acceleration, and the attribute value includes any one of the following factors or any combination thereof: the size, the length and the width, or the bit depth of the picture data. Specifically, the determining whether the attribute value of the picture data to be compressed is The determining whether the size, the length, the width, and the bit depth of the picture data to be compressed exceeds the second threshold may be determined whether the size, the length, the width, and the bit depth of the picture data to be compressed are If the second threshold or the two of the parameter values exceeds the second threshold, if yes, it is determined that the picture data to be compressed satisfies the condition of compression acceleration, and the picture data to be compressed belongs to a compressed consumption resource. Image data, wherein the attribute value of the picture data to be compressed may be obtained from the application module, the second threshold Belonging to experience, the second threshold value may be a numerical value, it may be a set of multiple values thereof; or

In the embodiment of the present invention, after the receiving unit 501 receives the data compression request, the determining unit 502 determines whether the compressed data storage module 505 stores the compressed data of the picture data to be compressed, if it is saved. The response unit 504 obtains the saved compressed data of the image data to be compressed from the compressed data storage module 505, avoids repeated compression work, and effectively saves system resources. If not, the The second compression unit 506 acquires the compressed data of the picture data to be compressed by using a compression algorithm, and the compressed data storage module 505 The compressed data compressed by the second compression unit 506 is saved to improve and update the compressed data storage module 505, so that the compressed data of the picture data is not required to be compressed again.

Preferably, after the second compression unit 506 completes the data compression, the classification unit 507 may further determine whether the picture data to be compressed satisfies the condition of the compression acceleration, and if the condition of the compression acceleration is met, the picture data belongs to Compressing the picture data with a large resource consumption, the compressed data storage module 505 saves the compressed data compressed by the second compression unit 506, so that when the compressed data of the picture data is needed next time, the compressed data is not consumed. The system resource is used to repeat the compressed image data. If the compression acceleration condition is not met, it indicates that the image data does not belong to the image data with large compression consumption resources. When the compressed data of the image data is needed next time, the compression algorithm may directly acquire the image data. The compressed data of the picture data not only makes reasonable use of system resources, but also saves the storage space of the system.

In another apparatus embodiment of the present invention, as shown in FIG. 6, the data compression apparatus 600 may include: a receiving unit 601, a determining unit 602, an obtaining unit 603, a response unit 604, a compressed data storage module 605, and a The second compression unit 606, the classification unit 607, and the first compression unit 608, wherein the compressed data storage module 605 can also be disposed outside the data compression device 600.

The compressed data storage module 605 is configured to save a compressed data set of the picture data, where the compressed data set uses the feature identifier of the picture data as an index to store compressed data of different picture data, so that the data compression apparatus 600 can be based on the picture. The feature identifier of the data is obtained, and the compressed data corresponding to the feature identifier of the saved image data is obtained from the compressed data storage module 605.

The receiving unit 601 is configured to receive a data compression request, and obtain image data to be compressed according to the data compression request. Preferably, the receiving unit 601 may directly acquire image data to be compressed carried in the data compression request. The image data to be compressed is obtained by querying the relevant module according to the indication in the data compression request, where the data compression request indicates that the image data to be compressed is compressed.

The classifying unit 607 is configured to be used after the receiving unit 601 receives the data compression request. Determining whether the picture data to be compressed satisfies a condition of compression acceleration;

Preferably, the classifying unit 607 may determine a size of a system resource consumed by compressing the picture data, and compare the system resource consumed by the compressed picture data with a preset first threshold, and if yes, determine Determining whether the compressed picture data satisfies the condition of the compression acceleration; or determining whether the attribute value of the picture data to be compressed exceeds a second threshold, and if yes, determining that the picture data to be compressed satisfies a condition of compression acceleration, The attribute value includes any one of the following factors or any combination thereof: the size, the length and the width of the picture data, or the bit depth. Specifically, determining whether the attribute value of the picture data to be compressed exceeds a second threshold may be determining the Whether the size, the length and the width, or the bit depth of the picture data to be compressed exceeds the second threshold, or may determine whether the size, the length and the width, and the bit depth of the picture data to be compressed exceed the second threshold or two of Whether the parameter value exceeds the second threshold, and if so, determining that the picture data to be compressed satisfies compression acceleration The image data to be compressed belongs to the image data with a large compression consumption resource, wherein the attribute value of the image data to be compressed may be acquired from the application module, and the second threshold belongs to an empirical value. The second threshold may be a value or a set of multiple values; or

The determining unit 602 is configured to determine a feature identifier of the picture data to be compressed, and determine the feature identifier according to the feature identifier, when the classification unit 607 determines that the picture data to be compressed satisfies a condition of compression acceleration. Whether the compressed data storage module 605 stores the feature identifier corresponding to The compressed data, wherein the feature identifier is used to represent the image data to be compressed, and the image data having the same feature identifier has the same compressed data, and the determining unit 602 determines that the feature identifier of the image data to be compressed is also Before the determining unit 607 determines that the picture data to be compressed satisfies the condition of the compression acceleration, the determining unit 602 may obtain the feature identifier of the picture data to be compressed from the application module. The determining unit 602 may further obtain a feature identifier of the image data to be compressed, where the feature identifier may be an image feature code, and the specific expression may be a character sequence or a digital sequence.

The obtaining unit 603 is configured to acquire, according to the feature identifier, the saved data stored in the compressed data storage module 605, when the determining unit determines that the compressed data storage module saves the compressed data corresponding to the feature identifier. The feature identifiers correspond to the compressed data. Since the image data with the same feature identifier has the same compressed data, the acquired compressed data corresponding to the feature identifier may be used as the compressed data of the image data to be compressed.

The response unit 604 is configured to return a data compression response carrying the compressed data corresponding to the feature identifier acquired from the acquiring unit 603.

The second compression unit 606 is configured to compress the image data to be compressed by using a compression algorithm when the determining unit 602 determines that the compressed data storage module 605 does not save the compressed data corresponding to the feature code. The compression data of the picture data to be compressed is obtained, where the compression algorithm may be a lossy compression algorithm or a lossless compression algorithm, which is not limited herein.

The compressed data storage module 605 is further configured to save the compressed data that is compressed by the second compression unit 606 by using a compression algorithm, so that the next time the system needs to compress the image data to be compressed, the compressed data may be directly Obtaining in the storage module 605, the repeated compression is not required. Specifically, the compressed compressed data may be associated with the feature identifier of the image data to be compressed, and then saved, so that the feature identifier is saved. The compressed data can be queried.

The response unit 604 is further configured to return to carry the second compression unit 606 to adopt a compression algorithm. The data compression response of the compressed data obtained by compression.

The first compression unit 608, when the classification unit 607 determines that the picture data to be compressed does not satisfy the condition of the compression acceleration, is used to compress the picture data to be compressed by using a compression algorithm, to obtain the to-be-compressed The compression data of the compressed picture data, wherein the compression algorithm may be a lossy compression algorithm or a lossless compression algorithm, which is not limited herein.

The response unit 604 is further configured to return a data compression response that carries the compressed data compressed by the first compression unit 608 by using a compression algorithm.

In the embodiment of the present invention, after the receiving unit receives the data compression request, the determining unit 602 determines whether the compressed data storage module 605 stores the compressed data of the picture data to be compressed, if the saved data is saved. The response unit 604 obtains the saved compressed data of the image data to be compressed from the compressed data storage module 605, avoiding repeated compression work, and effectively saving system resources. If not, the first The second compression unit 606 acquires the compressed data of the picture data to be compressed by using a compression algorithm, and the compressed data storage module 605 saves the compressed data compressed by the second compression unit 606 to improve and update the The data storage module 605 is compressed so that when the compressed data of the picture data is needed next time, the picture data is not repeatedly compressed.

Further, in the embodiment of the present invention, after the receiving unit 601 receives the data compression request, the classification unit 607 is further configured to determine whether the picture data to be compressed satisfies the condition of compression acceleration, if the compression acceleration is satisfied. The data compression device 600 accelerates the process of acquiring the compressed data of the picture data to be compressed, that is, when the determining unit 602 determines the compressed data corresponding to the feature identifier of the picture data to be compressed. The obtaining unit 603 directly obtains the compressed data corresponding to the saved feature identifier from the compressed data storage module 605, thereby avoiding compression of the image data with large compression cost resources, and compressing the image data. The data acquisition process is accelerated, further saving system resources and improving data compression efficiency.

Figure 7 is a data compression system 700 according to an embodiment of the present invention. The system may include: The data compression device 701 is configured to receive a data compression request, where the data compression request is used to compress the picture data to be compressed, and determine a feature identifier of the picture data to be compressed, where the feature identifier is used to represent the to-be-represented The compressed picture data, the same picture data of the feature identifier has the same compressed data, and the compressed data corresponding to the feature identifier saved by the compressed data storage module is obtained according to the feature identifier of the picture data to be compressed, and the data is returned. a compressed response, the data compression response carrying the compressed data corresponding to the feature identifier acquired from the compressed data storage module 702;

The compressed data storage module 702 is configured to save a compressed data set of the picture data, and the compressed data set uses the feature identifier as an index to store compressed data of different picture data.

FIG. 8 is a schematic structural diagram of a computer according to an embodiment of the present invention. The computer 800 of an embodiment of the present invention may include:

Processor 801, memory 802, system bus 804, and communication interface 805. The processor 801, the memory 802, and the communication interface 805 are connected by the system bus 804 and communicate with each other.

Processor 801 may be a single core or multi-core central processing unit, or a particular integrated circuit, or one or more integrated circuits configured to implement embodiments of the present invention.

The memory 802 can be a high speed RAM memory or a non-volatile memory, such as at least one disk memory.

Memory 802 is used by computer to execute instructions 803. Specifically, the program code may be included in the computer execution instruction 703.

When the computer is running, the processor 801 runs the computer execution instruction 803, and can perform the following method flow:

The method flow specifically includes: 101: Receive a data compression request, where the data compression request indicates compression of the picture data to be compressed.

102: Determine a feature identifier of the picture data to be compressed, where the feature identifier is used to represent the picture data to be compressed, and the picture data with the same feature identifier has the same compressed data. 103: Acquire, according to the feature identifier of the picture data to be compressed, the compressed data corresponding to the feature identifier saved by the compressed data storage module.

The method flow may further include: 201: Establishing a compressed data storage module, where the compressed data storage module is configured to save a compressed data set of the picture data.

206: Compress the image data to be compressed by using a compression algorithm to obtain corresponding compressed data, and then perform step 207.

Preferably, before performing the saving operation of the step 207, the following steps may be further performed:

The method process may specifically include: 301: Establish a compressed data storage module, where the compressed data storage module is configured to save a compressed data set of the picture data.

Those of ordinary skill in the art will appreciate that various aspects of the present invention, or possible implementations of various aspects, may be embodied as a system, method, or computer program product. Thus, aspects of the invention, or possible implementations of various aspects, may be in the form of an entirely hardware embodiment, an entirely software embodiment (including firmware, resident software, etc.), or a combination of software and hardware aspects, They are collectively referred to herein as "circuits,""modules," or "systems." Moreover, aspects of the invention, Or a possible implementation of various aspects may take the form of a computer program product, which is a computer readable program code stored in a computer readable medium.

The computer readable medium can be a computer readable signal medium or a computer readable storage medium. The computer readable storage medium includes, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or device, or any suitable combination of the foregoing, such as random access memory (RAM), read only memory (ROM), Erase programmable read-only memory (EPROM or flash memory), optical fiber, portable read-only memory (CD-ROM).

The processor in the computer reads the computer readable program code stored in the computer readable medium, such that the processor can perform the functional actions specified in each step or combination of steps in the flowchart; A device that functions as specified in each block, or combination of blocks.

The computer readable program code can execute entirely on the user's computer, partly on the user's computer, as a separate software package, partly on the user's computer and partly on the remote computer, or entirely on the remote computer or server. . It should also be noted that in some alternative implementations, the functions noted in the various steps of the flowchart, or in the blocks in the block diagrams, may not occur in the order noted. For example, depending on the functionality involved, two steps, or two blocks, shown in succession may in fact be executed substantially simultaneously, or the blocks may sometimes be executed in the reverse order.

Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in a combination of electronic hardware or computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.

The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the claims.

Claims

Rights request

1. A data compression method, characterized by including:

Receive a data compression request, the data compression request indicates that the picture data to be compressed is compressed;

Determine the characteristic identifier of the picture data to be compressed, where the characteristic identifier is used to represent the picture data to be compressed, and picture data with the same characteristic identifier has the same compressed data; according to the characteristic identifier of the picture data to be compressed Feature identifier: obtain the compressed data corresponding to the feature identifier saved by the compressed data storage module;

Return a data compression response, where the data compression response carries the compressed data corresponding to the feature identifier obtained from the compressed data storage module.

2. The method according to claim 1, wherein determining the characteristic identifier of the image data to be compressed includes:

Calculate the feature identifier of the image data to be compressed, where the feature identifier includes a cyclic redundancy code or a Hamming code.

3. The method according to claim 2, wherein the calculating the characteristic identifier of the image data to be compressed includes:

Extract each frame of picture data from the picture data to be compressed;

Calculate the feature identifier of each frame of picture data.

4. The method according to claim 1, characterized in that, the method further includes: determining whether the image data to be compressed satisfies the conditions for compression acceleration, and if the conditions for compression acceleration are met, executing the step according to The step of obtaining the characteristic identifier of the image data to be compressed and the compressed data corresponding to the characteristic identifier saved by the compressed data storage module.

5. The method according to claim 4, wherein the determining whether the image data to be compressed meets the conditions for compression acceleration includes:

Determine whether the resources consumed by compressing the image data to be compressed exceed a first threshold, and if so, determine that the image data to be compressed meets the conditions for compression acceleration; or, Determine whether the attribute value of the image data to be compressed exceeds a second threshold. If so, determine that the image data to be compressed meets the conditions for compression acceleration. The attribute value includes any one of the following factors or any combination thereof: Picture The size, length, width, or bit depth of the data; or,

It is determined whether the complexity of the picture data to be compressed exceeds a third threshold, and if so, it is determined that the picture data to be compressed satisfies the conditions for compression acceleration.

6. The method according to claim 4, characterized in that, if the picture data to be compressed does not meet the conditions for compression acceleration, the method further includes:

Use a compression algorithm to compress the image data to be compressed;

Return a data compression response, which carries the compressed data compressed using the compression algorithm.

7. The method according to any one of claims 1 to 5, further comprising: establishing the compressed data storage module, wherein the compressed data storage module is used to save a compressed data set of picture data , the compressed data set uses the feature identifier as an index to save compressed data of different picture data.

8. The method according to claim 7, characterized in that, before obtaining the compressed data corresponding to the characteristic identifier saved by the compressed data storage module according to the characteristic identifier of the picture data to be compressed, the method further includes:

Determine whether the compressed data storage module saves the compressed data corresponding to the feature identification, and if so, execute the feature identification according to the picture data to be compressed to obtain the feature identification saved by the compressed data storage module Corresponding steps for compressing data.

9. The method according to claim 8, wherein if it is determined that the compressed data storage module does not save the compressed data corresponding to the feature identifier, the method further includes:

Use a compression algorithm to compress the image data to be compressed;

10. The method according to claim 9, characterized in that, the method further includes: The compressed data obtained by using the compression algorithm and the characteristic identifier of the picture data to be compressed are saved to the compressed data storage module.

11. A data compression device, characterized by including:

A receiving unit, configured to receive a data compression request, where the data compression request indicates that the picture data to be compressed is to be compressed;

Determining unit, used to determine the characteristic identifier of the picture data to be compressed, wherein the characteristic identifier is used to represent the picture data to be compressed, and picture data with the same characteristic identifier has the same compressed data;

An acquisition unit, configured to obtain the compressed data corresponding to the characteristic identifier stored by the compressed data storage module according to the characteristic identifier of the picture data to be compressed determined by the determination unit;

A response unit, configured to return a data compression response, where the data compression response carries compressed data corresponding to the feature identifier obtained from the compressed data storage module.

12. The device according to claim 11, characterized in that the determining unit is specifically used to:

13. The device according to claim 12, characterized in that the determining unit is specifically used to:

Extract each frame of picture data from the picture data to be compressed;

Calculate the feature identifier of each frame of picture data.

14. The device according to claim 11, characterized in that, the device further includes: a classification unit, used to determine whether the image data to be compressed satisfies the conditions for compression acceleration; When the compressed picture data meets the compression acceleration condition, the acquisition unit is specifically configured to obtain the compressed data corresponding to the characteristic identifier saved by the compressed data storage module according to the characteristic identifier of the image data to be compressed. .

15. The device according to claim 14, characterized in that the classification unit is specifically used At:

Determine whether the resources consumed by compressing the image data to be compressed exceed a first threshold, and if so, determine that the image data to be compressed meets the conditions for compression acceleration; or,

Determine whether the attribute value of the image data to be compressed exceeds a second threshold. If so, determine that the image data to be compressed meets the conditions for compression acceleration. The attribute value includes any one of the following factors or any combination thereof: Picture The size, length, width, or bit depth of the data; or,

16. The device according to claim 14, wherein the device further includes: a first compression unit, configured to perform compression when the classification unit determines that the image data to be compressed does not meet the conditions for compression acceleration. The image data to be compressed is compressed using a compression algorithm;

The response unit is also configured to return a data compression response carrying the compressed data compressed by the first compression unit using a compression algorithm.

17. The device according to any one of claims 11 to 16, characterized in that the compressed data storage module is arranged inside or outside the data compression device and is used to save a compressed data set of picture data, so The compressed data set uses the feature identifier as an index to store compressed data of different picture data.

18. The device according to claim 17, wherein the determining unit is further configured to: determine whether the compressed data storage module stores the compressed data corresponding to the characteristic identifier; When compressing data, the compressed data corresponding to the characteristic identifier stored in the compressed data storage module is obtained according to the characteristic identifier of the picture data to be compressed.

19. The device according to claim 18, characterized in that, the device further includes: a second compression unit, configured to determine in the determining unit that the compressed data storage module does not save the compressed data corresponding to the characteristic identifier. When collecting data, the image data to be compressed is compressed using a compression algorithm; The response unit is also configured to return a data compression response carrying the compressed data compressed by the second compression unit using a compression algorithm.

20. The device according to claim 19, characterized in that the second compression unit is also used for:

The compressed data obtained by using the compression algorithm and the characteristic identifier of the picture data to be compressed are saved to the compressed data storage module.

21. A data compression system, characterized by including:

Data compression device, configured to receive a data compression request, the data compression request indicates to compress the picture data to be compressed, and determine the characteristic identifier of the picture data to be compressed, wherein the characteristic identifier is used to represent the image data to be compressed of picture data, picture data with the same feature identifier has the same compressed data, according to the feature identifier of the image data to be compressed, obtain the compressed data corresponding to the feature identifier saved by the compressed data storage module, and return a data compression response, The data compression response carries the compressed data corresponding to the feature identifier obtained from the compressed data storage module;

The compressed data storage module is used to save a compressed data set of picture data, and the compressed data set uses the feature identifier as an index to save compressed data of different picture data.