WO2015161809A1

WO2015161809A1 - Picture splitting method and apparatus, and picture loading method and apparatus

Info

Publication number: WO2015161809A1
Application number: PCT/CN2015/077245
Authority: WO
Inventors: Yulong Wang
Original assignee: Tencent Technology (Shenzhen) Company Limited
Priority date: 2014-04-25
Filing date: 2015-04-23
Publication date: 2015-10-29
Also published as: CN105023285B; CN105023285A

Abstract

A picture splitting method includes: acquiring an original picture; splitting the original picture according to a preset size, to obtain partial pictures; removing a redundant partial picture in the partial pictures; generating restoration information of the removed partial picture according to a retained partial picture; and storing the retained partial picture and the restoration information. With the foregoing method, an original picture is split into partial pictures, a redundant partial picture is removed, restoration information of the removed partial picture is generated according to a retained partial picture, and the retained partial picture and the restoration information are stored. The file size of the retained partial picture is smaller than the file size of the original picture, which can reduce a storage space, and when the original picture needs to be loaded, it is feasible to load the retained partial picture only, and the removed partial picture is restored according to the restoration information, which can reduce a memory space occupied by picture loading.

Description

PICTURE SPLITTING METHOD AND APPARATUS, AND PICTURE LOADING METHOD AND APPARATUS

FIELD OF THE TECHNOLOGY

The present disclosure relates to graphics processing technologies, and in particular, to a picture splitting method and apparatus, and to a picture loading method and apparatus.

BACKGROUND OF THE DISCLOSURE

To achieve a certain visual effect and adapt to a high definition screen with an increasingly high resolution, the file size of a picture is increasingly large. Especially for a picture that needs to have a transparency effect, the file size of the picture increases dramatically. For example, for a screen with a common size of 1024*768, if an RGBA module is used for a picture, where each color value is represented by using 8 bits, the file size of one full-screen picture may reaches 1024*768*4B＝3MB. If a quantity of representation bits for each color channel increase, the file size of a picture is larger； and even if a compression technology is used, for the purpose of not damaging the transparency effect of the picture and not distorting the picture, the file size of the compressed picture is still large.

When loading a picture, a current application program generally loads the picture into memory once and for all, where the picture is loaded as a whole, thereby needing to occupy a large proportion of the memory to save the picture. However, an operating system such as the Android or iOS operating system generally has a limitation on the proportion of memory occupied by the application program. When the operating system receives a memory alarm, a problem of an unsmooth operation may occur on the application program that occupies a large proportion of memory, and even a process or a thread of the application program is killed by the system.

SUMMARY

Based on the above, it is necessary to provide a picture splitting method that reduces a memory space occupied when a picture is loaded.

A picture splitting method includes: at a computer system having one or more processors and memory storing programs executed by the one or more processors: acquiring an original picture； splitting the original picture according to a preset size, to obtain partial pictures； removing a redundant partial picture in the partial pictures, and obtaining a retained partial picture； generating restoration information of the removed partial picture according to the retained partial picture； and storing the retained partial picture and the restoration information.

In addition, it is also necessary to provide a picture loading method that can reduce an occupied memory space.

A picture loading method includes: at a computer system having one or more processors and memory storing programs executed by the one or more processors: loading a retained partial picture of an original picture； acquiring restoration information of a removed partial picture in the original picture, the restoration information being generated according to the retained partial picture； restoring the removed partial picture according to the retained partial picture and the restoration information； and combining the retained partial picture and the restored partial picture into a panoramic picture.

In addition, it is also necessary to provide a picture splitting apparatus that reduces a memory space occupied when a picture is loaded.

A picture splitting apparatus includes: one or more processors； memory； and one or more program modules stored in the memory and executed by the one or more processors. The one or more program modules includes: an original picture acquiring module, configured to acquire an original picture； a splitting module, configured to split the original picture according to a preset size, to obtain partial pictures； a deduplication module, configured to remove a redundant partial picture in the partial pictures； a restoration information generating module, configured to generate restoration information of the removed partial picture according to a retained partial picture； and a storage module, configured to store the retained partial picture and the restoration information.

In addition, it is also necessary to provide a picture loading apparatus that can reduce an occupied memory space.

A picture loading apparatus includes: one or more processors； memory； and one or more program modules stored in the memory and executed by the one or more processors. The one or more program modules includes: a loading module, configured to load a retained partial picture of an original picture； a restoration information acquiring module, configured to acquire restoration information of a removed partial picture in the original picture, the restoration information being generated according to the retained partial picture； a restoration module, configured to restore the removed partial picture according to the retained partial picture and the restoration information； and a combination module, configured to combine the retained partial picture and the restored partial picture into a panoramic picture.

With the foregoing picture splitting method and apparatus, an original picture is split into partial pictures, a redundant partial picture in the partial pictures is removed, restoration information of the removed partial picture is generated according to a retained partial picture, and the retained partial picture and the restoration information are stored. The file size of the retained partial picture is smaller than the file size of the original picture, which can reduce a storage space, and moreover, when the original picture needs to be loaded, it is feasible to load the retained partial picture only, and the removed partial picture is restored according to the restoration information, which can reduce a memory space occupied by picture loading.

With the foregoing picture loading method and apparatus, only a retained partial picture of an original picture is loaded, restoration information of a removed partial picture is acquired, and the removed partial picture is further restored according to the retained partial picture and the restoration information. The file size of the loaded partial picture is smaller than the file size of the original picture, which can reduce an occupied memory space.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic flowchart of a picture splitting method according to an embodiment；

FIG. 2 is a schematic flowchart of a picture splitting method according to another embodiment；

FIG. 3 is a schematic diagram of splitting an original picture and retaining some partial pictures in a picture splitting method according to an embodiment；

FIG. 4 is a schematic flowchart of a picture loading method according to an embodiment；

FIG. 5 is a schematic structural diagram of a picture splitting apparatus according to an embodiment；

FIG. 6 is a schematic structural diagram of a picture splitting apparatus according to another embodiment；

FIG. 7 is a schematic structural diagram of a picture loading apparatus according to an embodiment；

FIG. 8 is a schematic structural diagram of a restoration module according to an embodiment； and

FIG. 9 is a block diagram of a computer system 1000 that can implement embodiments of the present invention.

DESCRIPTION OF EMBODIMENTS

To make the technical solutions and advantages of the present disclosure clearer, the following further describes the present disclosure in detail with reference to the accompanying drawings and embodiments. It should be understood that, the specific embodiments described herein are only used to explain the present disclosure, but are not used to limit the present disclosure.

As shown in FIG. 1, in an embodiment, a picture splitting method includes the following steps:

Step S10: Acquire an original picture.

A picture resource, size information, and the like, of the original picture may be acquired. The size information is information about quantities of rows and columns of pixels that form the picture, for example, if the size of the original picture is 1024×768, it indicates that the original picture is formed by 1024 rows and 768 columns of pixels.

Step S20: Split the original picture according to a preset size, to obtain partial pictures.

The size of the original picture is about an integer multiple of the size of a partial picture.

In an embodiment, the length of the original picture is about 2^N times the length of the partial picture, and the width of the original picture is about 2^M times the width of the partial picture, where M and N are natural numbers, but M and N are not simultaneously 0. That is, when the original picture is split, the original picture may be halved, and partial pictures obtained through the splitting are halved one after another, until splitting for preset times is completed. For an axisymmetric or a centrosymmetric picture, axisymmetric or centrosymmetric partial pictures are more easily obtained through splitting according to the foregoing embodiment, which facilitates splitting of the original picture into multiple partial pictures that includes a redundant partial picture, where more redundant pictures in the partial pictures obtained through splitting indicate fewer retained partial pictures.

Step S30: Remove a redundant partial picture in the partial pictures.

In an embodiment, the redundant partial picture is a partial picture that can be obtained through geometric transformation of another partial picture except the partial picture.

Specifically, the redundant partial picture is a partial picture that can be obtained through geometric transformation of any picture in other partial pictures except the partial picture.

The geometric transformation includes flip transformation, rotation transformation, and the like. It may be considered that two pictures that are the same may be mutually obtained through 360 degree rotation.

Step S40: Generate restoration information of the removed partial picture according to a retained partial picture.

Step S50: Store the retained partial picture and the restoration information of the removed partial picture.

In an embodiment, step S30 includes the following step: removing a partial picture except any one of two or more partial pictures that can be obtained mutually through geometric transformation.

In an embodiment, step S30 may be: successively selecting one partial picture in the partial pictures obtained through the splitting to compare the partial picture with a remaining partial picture, determining whether the remaining partial picture can be obtained through geometric transformation of the selected partial picture, and removing a partial picture, which can be obtained through geometric transformation of the selected partial picture, in the partial pictures obtained through the splitting.

Step S40 may be generating a location of the selected partial picture, a location of the removed partial picture, and a correspondence of the geometric transformation needed to transform the selected partial picture into the removed partial picture.

Step S50 may be storing a picture resource and location information of the retained partial picture and storing the generated correspondence, that is, storing the picture resource of the retained partial picture, and the location information, in the original picture, of the retained partial picture.

A location of a partial picture is a location, in the original picture, of the partial picture.

The location, in the original picture, of the partial picture may be represented by using row and column locations, in the original picture, of a partial picture pixel, and specifically may be represented by using row and column locations, in the original picture, of pixels of two vertexes connected by a diagonal line of the partial picture. For example, ( (1, 1) , (50, 60) ) represents that the partial picture is located between the first row to the 50^th row and between the first column to the 60^th column of the original picture, and the partial picture pixels are located in a rectangular coverage range with a connection line between pixels (1, 1) and (50, 60) of the original picture as a diagonal line, and may also indicate that an upper left vertex and a lower right vertex of the partial picture are respectively the pixels (1, 1) and (50, 60) of the original picture.

For example, it is recorded that in the original picture, pixel locations of an upper left vertex and a lower right vertex of a first partial picture are respectively (1, 1) and (50, 60) , and pixel locations of an upper left vertex and a lower right vertex of a second partial picture are respectively (1, 61) and (50, 120) .

If a record in the foregoing correspondence is: ( (1, 1) , (50, 60) ) , ( (1, 61) , (50, 120) ) , "Horizontal flip + 90 degree clockwise rotation" , the foregoing record may indicate that the second partial picture may be obtained by performing horizontal flip and then 90 degree clockwise rotation on the first partial picture.

If a record is: ( (1, 1) , (50, 60) ) , ( (1, 61) , (50, 120) ) , "None" , or ( (1, 1) , (50, 60) ) , ( (1, 61) , (50, 120) ) , "360 degree rotation" , the record may indicate that the second partial picture is the same as the first partial picture and does not require geometric transformation, or the second partial picture may be obtained by rotating the first partial picture by 360 degrees.

In an embodiment, after step S20, the foregoing picture splitting method includes the following steps:

successively selecting one partial picture in the partial pictures to compare the partial picture with a remaining partial picture, determining whether the remaining partial picture can be obtained through geometric transformation of the selected partial picture, and removing a partial picture, which can be obtained through geometric transformation of the selected partial picture, in the partial pictures obtained through the splitting； generating and storing a location of the selected partial picture, a location of the removed partial picture, and a correspondence of the geometric transformation needed to transform the selected partial picture into the removed partial picture； and storing a picture resource and location information of the selected partial picture, and removing the selected partial picture in the partial pictures obtained through the splitting； and

repeatedly executing the foregoing steps of picture selection, picture comparison, picture removal, correspondence recoding, and picture storage with a retained partial picture as an execution range, until only one retained partial picture is left； and storing a picture resource and location information of the left last partial picture.

As shown in FIG. 2, in a specific embodiment, the foregoing picture splitting method includes the following steps:

Step S300: Acquire an original picture, and split the original picture according to a preset size, to obtain partial pictures.

Step S301: Select one partial picture in the partial pictures.

Step S302: Set that i＝1.

Step S303: Compare the selected picture with an i^th partial picture in a remaining partial picture, determine whether the i^th partial picture can be obtained through geometric transformation of the selected partial picture, and if yes, perform step S304； or if not, perform step S305.

Step S304: Remove the i^th partial picture, generate and store a location of the selected partial picture, a location of the i^th partial picture, and a correspondence of the geometric transformation needed to transform the selected partial picture into the i^th partial picture, and perform step S305.

Step S305: Set that i＝i+1, determine whether i is equal to a quantity of partial pictures, and if not, perform step S303； or if yes, perform step S306.

Step S306: Store a picture resource and location information of the selected partial picture, remove the selected partial picture in the partial pictures obtained through the splitting, and perform step S307.

Step S307: Determine whether a quantity of partial pictures is 1, and if not, perform step S301； or if yes, perform step S308.

Step S308: Store a picture resource and location information of a left last partial picture.

FIG. 3 is a schematic diagram of splitting an original picture and retaining some partial pictures in a picture splitting method according to an embodiment. As shown in FIG. 3, an original picture 1 is split along dashed lines to obtain 48 partial pictures； after the partial pictures are compared with each other, 8 partial pictures that are a partial picture 1a in the upper left corner, a partial picture 1b at a first left edge, a partial picture 1c at a second left edge, a partial picture 1d in the lower left corner, a partial picture 1e in the lower right corner, a partial picture 1f at the right edge, a partial picture 1g at the upper edge, and a partial picture 1h in the middle may be retained, and 40 remaining partial pictures may be obtained through geometric transformation of the 8 partial pictures, and therefore are redundant partial pictures； and the 40 redundant partial pictures may be deleted.

With the foregoing picture splitting method, an original picture is split into partial pictures, a redundant partial picture in the partial pictures is removed, restoration information of the removed partial picture is generated according to a retained partial picture, and the retained partial picture and the restoration information are stored. The file size of the retained partial picture is smaller than the file size of the original picture, which can reduce a storage space, and moreover, when the original picture needs to be loaded, it is feasible to load the retained partial picture only, and the removed partial picture is restored according to the restoration information, which can reduce a memory space occupied by picture loading.

As shown in FIG. 4, in an embodiment, a picture loading method includes the following steps:

Step S70: Load a retained partial picture of an original picture.

The original picture is formed by the retained partial picture and a removed partial picture except the retained partial picture.

Step S80: Acquire restoration information of a removed partial picture in the original picture, where the restoration information is generated according to the retained partial picture.

Step S90: Restore the removed partial picture according to the retained partial picture and the restoration information.

Step S100: Combine the retained partial picture and the restored partial picture into a panoramic picture.

In an embodiment, the removed partial picture can be obtained through geometric transformation of the retained partial picture.

The geometric transformation includes rotation transformation, flip transformation, and the like.

In an embodiment, data of the loaded retained partial picture includes a picture resource and location information of the retained partial picture. Location information of a partial picture is location information, in the original picture, of the partial picture. The location, in the original picture, of the partial picture may be represented by using row and column locations, in the original picture, of a partial picture pixel, and specifically may be represented by using row and column locations, in the original picture, of pixels of two vertexes connected by a diagonal line of the partial picture.

The restoration information includes: a location of the retained partial picture, a location of the removed partial picture that can be obtained through geometric transformation of the retained partial picture, and a correspondence of the geometric transformation needed to transform the retained partial picture into the removed partial picture.

Step S90 includes the following steps: acquiring a corresponding loaded picture resource according to the location of the retained partial picture that is included in the restoration information； and performing corresponding geometric transformation on the picture resource according to corresponding geometric transformation information in the restoration information, to obtain a picture resource of the removed partial picture at the corresponding location.

For example, content of one record in the restoration information includes: ( (1, 1) , (50, 60) ) , ( (1, 61) , (50, 120) ) , "Horizontal flip + 90 degree clockwise rotation" . Then, the picture resource and the location information of the loaded retained partial picture may be searched for a picture resource corresponding to the location ( (1, 1) , (50, 60) ) , and horizontal flip and 90 degree clockwise rotation are further performed on the found picture resource, so that a picture resource of a partial picture corresponding to the location ( (1, 61) , (50, 120) ) is obtained.

Step S100 includes the following step: splicing the picture resources of the retained partial picture and the restored partial picture according to corresponding locations, to obtain the panoramic picture.

For example, the picture resource whose location is ( (1, 1) , (50, 60) ) is placed at a location of the first row to the 50^th row and the first column to the 60^th column of the combined picture, the picture resource whose location is ( (1, 61) , (50, 120) ) is placed at a location of the first row to the 50^th row and the 61^st column to the 120^th column of the combined picture, and so on.

In a specific embodiment, interface controls at corresponding locations may be rendered according to the picture resources of the retained partial picture and the restored partial picture, where one partial picture corresponds to one interface control, and the interface controls are spliced to form the panoramic picture.

With the foregoing picture loading method, only a retained partial picture of an original picture is loaded, restoration information of a removed partial picture that is to be restored in the original picture by using the retained partial picture is acquired, and the removed partial picture is further restored according to the retained partial picture and the restoration information. The file size of the loaded partial picture is smaller than the file size of the original picture, which can reduce an occupied memory space.

A picture splitting and loading method includes the steps in the picture splitting method in any one of the foregoing embodiments, and includes the steps in the picture loading method in any one of the foregoing embodiments.

In some application interfaces, a background picture generally does not change frequently, and the foregoing picture splitting and loading method may be used to split and load the background picture. In an application scenario, the foregoing picture splitting and loading method includes the following process of splitting a background picture, where the process includes the following steps:

(1.1) Acquire a specified background picture.

(1.2) Split the background picture according to a preset size, to obtain partial pictures.

The size of the original picture is about an integer multiple of the size of a partial picture. A quantity of the partial pictures affects interface refreshing smoothness, and therefore an upper limit may be set for the quantity of the partial pictures obtained through splitting. When the background picture is split, a minimum size of the partial pictures may be obtained through calculation according to the size of the background picture and the upper limit of the quantity, and the size of the partial pictures may be set to be smaller than or equal to the minimum size.

(1.3) Successively select one partial picture in the partial pictures obtained through the splitting to compare the partial picture with a remaining partial picture, determine whether the remaining partial picture can be obtained through geometric transformation of the selected partial picture, and remove a partial picture, which can be obtained through geometric transformation of the selected partial picture, in the partial pictures obtained through the splitting.

(1.4) Generate restoration information of a removed partial picture according to a retained partial picture, that is, generate a location, in the background picture, of the selected partial picture, a location, in the background picture, of the removed partial picture, and a correspondence of geometric transformation needed to transform the selected partial picture into the removed partial picture.

(1.5) Store a picture resource of the retained partial picture, and location information, in the background picture, of the retained partial picture, and store the restoration information of the removed partial picture.

The foregoing picture splitting and loading method includes the following process of loading a background picture, where the process includes the following steps:

(2.1) Load a retained partial picture of a background picture.

(2.2) Acquire restoration information of a removed partial picture in the background picture.

(2.3) Restore the removed partial picture according to the retained partial picture and the restoration information.

(2.4) Combine the retained partial picture and the restored partial picture into a panoramic picture of the background picture.

With the foregoing picture splitting and loading method, an original picture is split into partial pictures, a redundant partial picture in the partial pictures is removed, restoration information of the removed partial picture is generated according to a retained partial picture, and the retained partial picture and the restoration information of the removed partial picture are stored； and in a process of loading the original picture, only a retained partial picture of the original picture is loaded, the restoration information of the removed partial picture is acquired, and the removed partial picture is further restored according to the retained partial picture and the restoration information. The file size of the retained partial picture is smaller than the file size of the original picture, which can reduce a storage space, and also can reduce a memory space occupied by picture loading.

As shown in FIG. 5, in an embodiment, a picture splitting apparatus includes an original picture acquiring module 10, a splitting module 20, a deduplication module 30, a restoration information generating module 40, and a storage module 50.

The original picture acquiring module 10 is configured to acquire an original picture.

The original picture acquiring module 10 may acquire a picture resource, size information, and the like, of the original picture. The size information is information about quantities of rows and columns of pixels that form the picture, for example, if the size of the original picture is 1024×768, it indicates that the original picture is formed by 1024 rows and 768 columns of pixels.

The splitting module 20 is configured to split the original picture according to a preset size, to obtain partial pictures.

In an embodiment, the length of the original picture is about 2^N times the length of the partial picture, and the width of the original picture is 2^M times the width of the partial picture, where M and N are natural numbers, but M and N are not simultaneously 0. That is, when splitting the original picture, the splitting module 20 may halve the original picture, and halve the partial pictures obtained through the splitting one after another, until completing splitting for preset times. For an axisymmetric or a centrosymmetric picture, axisymmetric or centrosymmetric partial pictures are more easily obtained through splitting according to the foregoing embodiment, which facilitates splitting of the original picture into multiple partial pictures that includes a redundant partial picture, where more redundant pictures in the partial pictures obtained through splitting indicate fewer retained partial pictures.

The deduplication module 30 is configured to remove a redundant partial picture in the partial pictures.

The restoration information generating module 40 is configured to generate restoration information of the removed partial picture according to a retained partial picture.

The storage module 50 is configured to store the retained partial picture and the restoration information of the removed partial picture.

In an embodiment, the deduplication module 30 is configured to remove a partial picture except any one of two or more partial pictures that can be obtained mutually through geometric transformation.

In an embodiment, the deduplication module 30 may successively select one partial picture in the partial pictures obtained through the splitting to compare the partial picture with a remaining partial picture, determine whether the remaining partial picture can be obtained through geometric transformation of the selected partial picture, and remove a partial picture, which can be obtained through geometric transformation of the selected partial picture, in the partial pictures obtained through the splitting.

The restoration information generating module 40 is configured to generate a location of the selected partial picture, a location of the removed partial picture, and a correspondence of the geometric transformation needed to transform the selected partial picture into the removed partial picture.

The storage module 50 is configured to store a picture resource and location information of the retained partial picture and store the foregoing generated correspondence. Location information stored by the storage module 50 of a partial picture is location information, in the original picture, of the partial picture.

The location, in the original picture, of the partial picture may be represented by using row and column locations, in the original picture, of a partial picture pixel, and specifically may be represented by using row and column locations, in the original picture, of pixels of two vertexes connected by a diagonal line of the partial picture.

As shown in FIG. 6, in an embodiment, the deduplication module 30 includes a selection module 301, a comparing and determining module 302, and a removing module 303, and the foregoing picture splitting apparatus further includes a cycle control module 60, where:

the original picture acquiring module 10 is configured to acquire an original picture；

the splitting module 20 is configured to split the original picture according to a preset size, to obtain partial pictures；

the selection module 301 is configured to select one partial picture in the partial pictures；

the comparing and determining module 302 is configured to compare the selected picture with a remaining partial picture, and determine whether the remaining partial picture can be obtained through geometric transformation of the selected partial picture；

the removing module 303 is configured to remove a partial picture, which can be obtained through geometric transformation of the selected partial picture, in the remaining partial picture；

the restoration information generating module 40 is configured to generate a location of the selected partial picture, a location of the removed partial picture, and a correspondence of the geometric transformation needed to transform the selected partial picture into the removed partial picture；

the storage module 50 is configured to store the generated correspondence；

the storage module 50 is further configured to store a picture resource and location information of the selected partial picture；

the removing module 303 is further configured to: after the storage module stores the selected partial picture, remove the selected partial picture in the partial pictures obtained through the splitting；

the cycle control module 60 is configured to: with a retained partial picture as an execution range, control the selection module 301, the comparing and determining module 302, the removing module 303, the restoration information generating module 40, and the storage module 50 to repeatedly run, until only one retained partial picture is left； and

the storage module 50 is further configured to store a picture resource and location information of the left last partial picture.

In a specific embodiment,

the cycle control module 60 is configured to: after the selection module 301 selects one partial picture in the partial pictures, set that i＝1, and start the comparing and determining module 302；

the comparing and determining module 302 is configured to compare the selected picture with an i^th partial picture in a remaining partial picture, and determine whether the i^th partial picture can be obtained through geometric transformation of the selected partial picture；

the cycle control module 60 is further configured to: if the i^th partial picture can be obtained through geometric transformation of the selected partial picture, transmit the i^th partial picture to the removing module 303 to start the removing module 303, and start the restoration information generating module 40；

the removing module 303 is configured to remove, in the partial pictures obtained through the splitting, the partial picture transmitted by the cycle control module 60；

the restoration information generating module 40 is configured to generate a location of the selected partial picture, a location of the i^th partial picture, and a correspondence of the geometric transformation needed to transform the selected partial picture into the i^th partial picture, and the storage module 50 is configured to store the generated correspondence；

the cycle control module 60 is further configured to: after the removing module 303 removes the i^th partial picture, set that i＝i+1, determine whether i is equal to a quantity of the partial pictures, and if not, start the comparing and determining module 302； or if yes, transmit the selected partial picture to the storage module 50 to start the storage module 50, and transmit the selected partial picture to the removing module 303 to start the removing module 303；

the storage module 50 is further configured to store a picture resource and location information of the partial picture that is transmitted by the cycle control module 60； and

the cycle control module 60 is further configured to: after the removing module 303 removes the selected partial picture in the partial pictures obtained through the splitting, determine whether a quantity of partial picture is equal to 1, and if not, start the selection module 301； or if yes, transmit the left last partial picture to the storage module 50 to start the storage module 50.

With the foregoing picture splitting apparatus, an original picture is split into partial pictures, a redundant partial picture in the partial pictures is removed, restoration information of the removed partial picture is generated according to a retained partial picture, and the retained partial picture and the restoration information are stored. The file size of the retained partial picture is smaller than the file size of the original picture, which can reduce a storage space, and moreover, when the original picture needs to be loaded, it is feasible to load the retained partial picture only, and the removed partial picture is restored according to the restoration information, which can reduce a memory space occupied by picture loading.

As shown in FIG. 7, in an embodiment, a picture loading apparatus includes a loading module 70, a restoration information acquiring module 80, a restoration module 90, and a combination module 100, where

the loading module 70 is configured to load a retained partial picture of an original picture, where

the original picture is formed by the retained partial picture and a removed partial picture except the retained partial picture；

the restoration information acquiring module 80 is configured to acquire restoration information of a removed partial picture in the original picture, where the restoration information of the removed partial picture is generated according to the retained partial picture；

the restoration module 90 is configured to restore the removed partial picture according to the retained partial picture and the restoration information； and

the combination module 100 is configured to combine the retained partial picture and the restored partial picture into a panoramic picture.

As shown in FIG. 8, in an embodiment, the restoration module 90 includes a picture resource acquiring module 902 and a geometric transformation module 904, where:

the picture resource acquiring module 902 is configured to acquire a corresponding loaded picture resource according to the location of the retained partial picture that is included in the restoration information； and the geometric transformation module 904 is configured to perform corresponding geometric transformation on the picture resource according to corresponding geometric transformation information in the restoration information, to obtain a picture resource of the removed partial picture at the corresponding location.

In an embodiment, the combination module 100 is configured to splice the picture resources of the retained partial picture and the restored partial picture according to corresponding locations, to obtain the panoramic picture.

For example, a picture resource whose location is ( (1, 1) , (50, 60) ) is placed at a location of the first row to the 50^th row and the first column to the 60^th column of the combined picture, a picture resource whose location is ( (1, 61) , (50, 120) ) is placed at a location of the first row to the 50^th row and the 61^st column to the 120^th column of the combined picture, and so on.

In a specific embodiment, the combination module 100 may render interface controls at corresponding locations according to the picture resources of the retained partial picture and the restored partial picture, where one partial picture corresponds to one interface control, and the interface controls are spliced to form the panoramic picture.

With the foregoing picture loading apparatus, only a retained partial picture of an original picture is loaded, restoration information of a removed partial picture that is to be restored in the original picture by using the retained partial picture is acquired, and the removed partial picture is further restored according to the retained partial picture and the restoration information. The file size of the loaded partial picture is smaller than the file size of the original picture, which can reduce an occupied memory space.

A picture splitting and loading system includes the modules in the picture splitting apparatus in any one of the foregoing embodiments, and includes the modules in the picture loading apparatus in any one of the foregoing embodiments.

With the foregoing picture splitting and loading system, an original picture is split into partial pictures, a redundant partial picture in the partial pictures is removed, restoration information of the removed partial picture is generated according to a retained partial picture, and the retained partial picture and the restoration information of the removed partial picture are stored； and in a process of loading the original picture, only a retained partial picture of the original picture is loaded, the restoration information of the removed partial picture is acquired, and the removed partial picture is further restored according to the retained partial picture and the restoration information. The file size of the retained partial picture is smaller than the file size of the original picture, which can reduce a storage space, and also can reduce a memory space occupied by picture loading.

FIG. 9 is a block diagram of a computer system 1000 that can implement embodiments of the present invention. The computer system 1000 is merely an example of computer environments applicable to the present disclosure, and should not be construed as any limitation to the application scope of the present disclosure. The computer system 1000 also should not be interpreted as needing to rely on or have one or a combination of components of the exemplary computer system 1000 shown in FIG. 9.

The computer system 1000 shown in FIG. 9 is an example of computer systems suitable for use in the present disclosure. Other architectures having different subsystem configurations may also be used. For example, well-known devices such as a desktop computer, a notebook computer, and a tablet computer are applicable to some embodiments of the present invention, but the present disclosure is not limited thereto.

As shown in FIG. 9, the computer system 1000 includes a processor 1010, a memory 1020 and a system bus 1022. Various system components including the memory 1020 and the processor 1010 are connected to the system bus 1022. The processor 1010 is hardware for executing computer program instructions by means of basic arithmetic and logic operations in the computer system. The memory 1020 is a physical device for temporarily or permanently storing computer programs or data (for example, program state information) . The system bus 1022 may be any one of the following types of bus structures: a memory bus or memory controller, a peripheral bus and a local bus. The processor 1010 and the memory 1020 can perform data communication through the system bus 1022. The memory 1020 includes a read-only memory (ROM) or a flash memory (both not shown in the figure) , and a random access memory (RAM) , where the RAM generally refers to a main memory loaded with an operating system and application programs.

The computer system 1000 further includes a display interface 1030 (for example, a graphics processing unit) , a display device 1040 (for example, a liquid crystal display) , an audio interface 1050 (for example, a sound card) and an audio device 1060 (for example, a loudspeaker) . The display device 1040 and the audio device 1060 are media devices for presenting multimedia content.

The computer system 1000 generally includes one storage device 1070. The storage device 1070 may be selected from multiple types of computer readable media. The computer readable media refer to any available media that can be accessed by the computer system 1000, and include removable media and non-removable media. For example, the computer readable media include, but is not limited to, a flash memory (micro SD card) , a CD-ROM, a digital versatile disc (DVD) or other optical storage, a cassette, a magnetic tape, a disk storage or other magnetic storage devices, or any other media that can be used to store required information and can be accessed by the computer system 1000.

The computer system 1000 further includes an input apparatus 1080 and an input interface 1090 (for example, an IO controller) . A user may input an instruction and information into the computer system 1000 by using the input apparatus 1080, such as a keyboard, a mouse or a touch panel device on the display device 1040. The input apparatus 1080 is generally connected to the system bus 1022 through the input interface 1090, but may also be connected through other interfaces or bus structures, such as a universal serial bus (USB) .

The computer system 1000 may be logically connected to one or more network devices in a network environment. The network device may be a personal computer, a server, a router, a smart phone, a tablet computer or other public network nodes. The computer system 1000 is connected to the network device through a local area network (LAN) interface 1100 or a mobile communications unit 1110. A local area network (LAN) refers to an interconnected computer network in a limited area such as a family, a school, a computer laboratory, or an office building using network media. WiFi and Ethernet over twisted pair are the most commonly used two technologies for building a local area network. WiFi is a technology that enables the computer systems 1000 to exchange data or to be connected to a wireless network through radio waves. The mobile communications unit 1110 is capable of making and receiving calls through radio communications lines while moving in a broad geographic area. In addition to calling, the mobile communications unit 1110 also supports Internet access in a 2G, 3G or 4G cellular communications system that provides mobile data services.

It should be noted that other computer systems including more or fewer subsystems than those of the computer system 1000 are also applicable to the present disclosure. For example, the computer system 1000 may include a Bluetooth unit capable of exchanging data in a short distance, an image sensor for capturing images, and an accelerometer for measuring the acceleration.

As described above in detail, the computer system 1000 applicable to the present disclosure can execute specified operations in the picture splitting method, the picture loading method, and the picture splitting and loading method. The computer system 1000 executes these operations in the form of running software instructions in the computer readable media by the processor 1010. These software instructions may be read into the memory 1020 from the storage device 1070 or from another device through the local area network interface 1100. The software instructions stored in the memory 1020 make the processor 1010 execute the picture splitting method, the picture loading method, and the picture splitting and loading method. Moreover, the present disclosure may also be implemented by using a hardware circuit or by using a combination of a hardware circuit and software instructions. Therefore, the implementation of the present disclosure is not limited to any particular combination of a hardware circuit and software.

The foregoing embodiments only describe several implementation manners of the present disclosure, and their description is specific and detailed, but cannot therefore be understood as a limitation to the patent scope of the present disclosure. It should be noted that a person of ordinary skill in the art may further make variations and improvements without departing from the conception of the present disclosure, and these all fall within the protection scope of the present disclosure. Therefore, the patent protection scope of the present disclosure should be subject to the appended claims.

Claims

A picture splitting method, comprising:

at a computer system having one or more processors and memory storing programs executed by the one or more processors:

acquiring an original picture；

splitting the original picture according to a preset size, to obtain partial pictures；

removing a redundant partial picture in the partial pictures, and obtaining a retained partial picture；

generating restoration information of the removed partial picture according to the retained partial picture； and

storing the retained partial picture and the restoration information.
The method according to claim 1, wherein the step of removing a redundant partial picture in the partial pictures comprises:

removing a partial picture except any one of two or more partial pictures that can be obtained mutually through geometric transformation.
The method according to claim 2, wherein the step of removing a redundant partial picture in the partial pictures comprises:

successively selecting one partial picture in the partial pictures obtained through the splitting to compare the partial picture with a remaining partial picture, determining whether the remaining partial picture can be obtained through geometric transformation of the selected partial picture, and removing a partial picture, which can be obtained through geometric transformation of the selected partial picture, in the partial pictures obtained through the splitting.
The method according to claim 3, wherein the step of generating restoration information of the removed partial picture according to a retained partial picture comprises:

generating a location of the selected partial picture, a location of the removed partial picture, and a correspondence of the geometric transformation needed to transform the selected partial picture into the removed partial picture.
The method according to any one of claims 1 to 4, wherein the step of storing the retained partial picture comprises:

storing a picture resource and location information of the retained partial picture.
A picture loading method, comprising:

at a computer system having one or more processors and memory storing programs executed by the one or more processors:

loading a retained partial picture of an original picture；

acquiring restoration information of a removed partial picture in the original picture, the restoration information being generated according to the retained partial picture；

restoring the removed partial picture according to the retained partial picture and the restoration information； and

combining the retained partial picture and the restored partial picture into a panoramic picture.
The method according to claim 6, wherein the removed partial picture can be obtained through geometric transformation of the retained partial picture.
The method according to claim 7, wherein data of the loaded retained partial picture comprises a picture resource and location information of the retained partial picture；

the restoration information comprises: a location of the retained partial picture, a location of the removed partial picture that can be obtained through geometric transformation of the retained partial picture, and a correspondence of the geometric transformation needed to transform the retained partial picture into the removed partial picture； and

the step of restoring the removed partial picture according to the retained partial picture and the restoration information comprises:

acquiring a corresponding loaded picture resource according to the location of the retained partial picture that is comprised in the restoration information； and

performing corresponding geometric transformation on the picture resource according to corresponding geometric transformation information in the restoration information, to obtain a picture resource of the removed partial picture at the corresponding location.
The method according to claim 8, wherein the step of combining the retained partial picture and the restored partial picture into a panoramic picture comprises:

splicing the picture resources of the retained partial picture and the restored partial picture according to corresponding locations, to obtain the panoramic picture.
A picture splitting apparatus, comprising:

one or more processors；

memory； and

one or more program modules stored in the memory and executed by the one or more processors, the one or more program modules comprising:

an original picture acquiring module, configured to acquire an original picture；

a splitting module, configured to split the original picture according to a preset size, to obtain partial pictures；

a deduplication module, configured to remove a redundant partial picture in the partial pictures；

a restoration information generating module, configured to generate restoration information of the removed partial picture according to a retained partial picture； and

a storage module, configured to store the retained partial picture and the restoration information.
The apparatus according to claim 10, wherein the deduplication module is configured to remove a partial picture except any one of two or more partial pictures that can be obtained mutually through geometric transformation.
The apparatus according to claim 11, wherein the deduplication module is configured to successively select one partial picture in the partial pictures obtained through the splitting to compare the partial picture with a remaining partial picture, determine whether the remaining partial picture can be obtained through geometric transformation of the selected partial picture, and remove a partial picture, which can be obtained through geometric transformation of the selected partial picture, in the partial pictures obtained through the splitting.
The apparatus according to claim 12, wherein the restoration information generating module is configured to generate a location of the selected partial picture, a location of the removed partial picture, and a correspondence of the geometric transformation needed to transform the selected partial picture into the removed partial picture.
The apparatus according to any one of claims 10 to 13, wherein the storage module is configured to store a picture resource and location information of the retained partial picture.
A picture loading apparatus, comprising:

one or more processors；

memory； and

one or more program modules stored in the memory and executed by the one or more processors, the one or more program modules comprising:

a loading module, configured to load a retained partial picture of an original picture；

a restoration information acquiring module, configured to acquire restoration information of a removed partial picture in the original picture, the restoration information being generated according to the retained partial picture；

a restoration module, configured to restore the removed partial picture according to the retained partial picture and the restoration information； and

a combination module, configured to combine the retained partial picture and the restored partial picture into a panoramic picture.
The apparatus according to claim 15, wherein the removed partial picture can be obtained through geometric transformation of the retained partial picture.
The apparatus according to claim 16, wherein data of the loaded retained partial picture comprises a picture resource and location information of the retained partial picture；

the restoration information comprises: a location of the retained partial picture, a location of the removed partial picture that can be obtained through geometric transformation of the retained partial picture, and a correspondence of the geometric transformation needed to transform the retained partial picture into the removed partial picture； and

the restoration module comprises:

a picture resource acquiring module, configured to acquire a corresponding loaded picture resource according to the location of the retained partial picture that is comprised in the restoration information； and

a geometric transformation module, configured to perform corresponding geometric transformation on the picture resource according to corresponding geometric transformation information in the restoration information, to obtain a picture resource of the removed partial picture at the corresponding location.
The apparatus according to claim 17, wherein the combination module is configured to splice the picture resources of the retained partial picture and the restored partial picture according to corresponding locations, to obtain the panoramic picture.