WO2021045414A1

WO2021045414A1 - Image recommendation device and operation method for image recommendation device

Info

Publication number: WO2021045414A1
Application number: PCT/KR2020/011067
Authority: WO
Inventors: 김지수; 양지호
Original assignee: 김지수; 양지호
Priority date: 2019-09-05
Filing date: 2020-08-19
Publication date: 2021-03-11
Also published as: KR102093733B1

Abstract

The present invention relates to an image recommendation device and an operation method for the image recommendation device, the device and the method selecting a past date that shows a universal thermal climate index (UTCI) matched with the current date, so as to generate recommendation information including images (for example, photos and videos) captured on the selected past date.

Description

Image recommendation device and operation method of image recommendation device

The present invention selects a past date showing a Universal Thermal Climate Index (UTCI) matched with the current date, and generates recommended information including images (eg, photos, videos) taken on the selected past date. It is about the technology for.

Recently, due to the development of various applications and improvement of the performance of small cameras, the number of users who use smart devices (eg, smart phones) as a camera substitute is increasing.

In addition, due to the development of small memory technology, a very large amount of photographed photos and videos can be stored in the smart device's own storage even without using a separate platform.

Therefore, from the perspective of users, there is a need for a more efficient and systematic way to manage the vast amount of photos or videos stored in smart devices.

In this regard, conventionally, there is a technology for extracting photos by shooting date or shooting location by referring to metadata of a photo or video taken by a smart device and exposing the result to the user.

However, in the case of the prior art that simply refers to metadata as described above, since the extraction criteria for extracting photos or videos are limited to information in the metadata, it is a reality that user satisfaction is not high with the resultant extraction result.

Accordingly, in the present invention, a new criterion for extracting photos or videos is applied to improve user satisfaction with the extraction result.

The present invention was created in view of the above circumstances, and an object to be reached in the present invention is to select a past date showing a Universal Thermal Climate Index (UTCI) matched with the current date, and then to the selected past date. It is to generate recommended information including captured images (eg, photos, videos).

The image recommendation apparatus according to an embodiment of the present invention for achieving the above object is to select a past date showing a climate index matched with the current date based on a reference climate index, which is a climate index calculated for the current date. part; And a designation unit for designating at least some of the past dates selected according to the matching rate with the reference climate index as an extraction target date for image extraction.

Specifically, the image recommendation device may further include a generator configured to extract an image photographed on the extraction target date and generate recommendation information including the extracted image.

Specifically, the selection unit may select a past date showing a difference in the climate index within a set error range with the reference climate index.

Specifically, when a recommended service for a specific area is requested, the selection unit determines whether the specific area has a climate maintenance characteristic in which the difference between climate indices is maintained within a set error range for a certain period including the current date. , When it is determined that the specific region has the climate maintenance characteristic, the predetermined period may be designated as a selection period, and it is possible to check whether or not the reference climate index matches the reference climate index only for a past date corresponding to the selection period.

Specifically, the matching rate may be determined according to a climate index fluctuation trend during a matching period, which is a period including two or more adjacent dates.

Specifically, the matching rate is for a first matching period with the current date as the end date of the period, and a second matching period with a past date showing the climate index matched with the reference climate index as the end or start date of the period. It can be determined according to the degree of similarity between changes in the climate index.

Specifically, the generation unit, when the image photographed on the extraction target date does not exist in the terminal requesting the generation of the recommendation information, or a predefined extraction target object does not exist in the image photographed on the extraction target date, Recommendation information may be generated by extracting an image photographed on the extraction target date from an image shared from another terminal.

Specifically, the generation unit determines two or more extraction target groups by classifying subscribers related to the terminal according to intimacy between subscribers in at least one shared service to which the terminal subscribes, and determines each extraction target group according to the intimacy priority. An image captured on the extraction target date may be extracted from an image shared by a subscriber belonging to the group.

In order to achieve the above object, a method of operating an image recommendation apparatus according to an embodiment of the present invention includes a past date showing a climate index matched with the current date based on a reference climate index, which is a climate index calculated for the current date. A screening step of selecting; And a designating step of designating at least some of the past dates selected according to the matching rate with the reference climate index as an extraction target date for image extraction.

Specifically, the method may further include a generating step of extracting an image photographed on the extraction target date and generating recommendation information including the extracted image.

Accordingly, according to the image recommendation device and the operating method of the image recommendation device of the present invention, a past date showing a Universal Thermal Climate Index (UTCI) matched with the current date is selected, and images photographed on the selected past date ( By providing recommended information including photos, videos), it is possible to refer to coordinate information such as event locations (eg, past travel destinations) and clothing suitable for the climate index of the current date from the recommended information.

1 is an exemplary view showing an image recommendation service environment according to an embodiment of the present invention.

2 is a schematic configuration diagram of an image recommendation device according to an embodiment of the present invention.

3 is an exemplary view for explaining a matching rate with a reference climate index according to an embodiment of the present invention.

4 is a flowchart illustrating a method of operating an image recommendation device according to an embodiment of the present invention.

5 is a flowchart illustrating a method of operating a terminal according to an embodiment of the present invention.

It should be noted that the technical terms used in the present specification are only used to describe specific embodiments, and are not intended to limit the spirit of the technology disclosed in the present specification. In addition, the technical terms used in the present specification should be interpreted in the meaning generally understood by those of ordinary skill in the field to which the technology disclosed in the present specification belongs, unless otherwise defined in the specification. It should not be interpreted in a comprehensive or excessively reduced sense. In addition, when a technical term used in the present specification is an incorrect technical term that does not accurately express the spirit of the technology disclosed in the present specification, it should be replaced with a technical term that can be correctly understood by those skilled in the art. In addition, general terms used in the present specification should be interpreted as defined in the dictionary or according to the context before and after, and should not be interpreted as an excessively reduced meaning.

In addition, a singular expression used in the present specification includes a plurality of expressions unless the context clearly indicates otherwise. In the present specification, terms such as “consisting of” or “comprising” should not be construed as necessarily including all of the various elements or various steps described in the specification, and some of the elements or some steps It may not be included, or it should be interpreted that it may further include additional components or steps.

In addition, terms including ordinal numbers such as first and second used in the present specification may be used to describe various components, but the components should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another component. For example, without departing from the scope of the present invention, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

Hereinafter, exemplary embodiments disclosed in the present specification will be described in detail with reference to the accompanying drawings, but identical or similar elements are denoted by the same reference numerals regardless of reference numerals, and redundant descriptions thereof will be omitted.

In addition, in describing the technology disclosed in the present specification, when it is determined that a detailed description of a related known technology may obscure the gist of the technology disclosed in the present specification, the detailed description thereof will be omitted. In addition, it should be noted that the accompanying drawings are for easy understanding of the spirit of the technology disclosed in the present specification, and should not be construed as limiting the spirit of the technology by the accompanying drawings.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

1 is an exemplary diagram illustrating an image recommendation service environment according to an embodiment of the present invention.

As shown in FIG. 1, an image recommendation service environment according to an embodiment of the present invention may have a configuration including a terminal 10 and an image recommendation device 20.

The terminal 10 refers to a smart device (eg, a smart phone) capable of photographing photos and videos (hereinafter, collectively referred to as “image”), and may store the captured image in its own storage.

As such, it goes without saying that the image stored in the storage of the terminal 10 includes metadata such as, for example, a photographing date and a photographing location.

In addition, the terminal 10 may generate recommendation information including an image photographed in connection with the image recommendation device 20 or may receive it from the image recommendation device 20, such as the terminal 10 and the image recommendation device ( The linkage between 20) may be made through a dedicated application executed in the terminal 10.

The image recommendation device 20 refers to a device for supporting the terminal 10 to generate recommendation information by selecting a photographed image, or for directly generating recommendation information for the terminal 10, for example, a network It may be implemented in the form of a server that supports access to the terminal 10 through.

In this way, when the image recommendation device 20 is implemented in the form of a server, for example, it may be implemented in the form of a web server, a database server, a proxy server, etc. One or more of various software to enable operation may be installed, and through this, it may be implemented as a computerized system.

As described above, in the image recommendation service environment according to an embodiment of the present invention, a basic operation of extracting a photographed image based on the above-described configuration and generating recommendation information including the extracted image may be performed.

On the other hand, as mentioned for a while as a conventional technique, conventionally, a technique of extracting images by shooting date or shooting location by referring to metadata of a photo or video taken by a smart device, and exposing the extraction result to the user, etc. Exists.

However, in the case of the conventional technology that simply refers only to metadata in image extraction, the criteria for extracting a captured image are limited to the shooting date or location, which is information in the metadata. The reality is that satisfaction is not high.

Accordingly, in an embodiment of the present invention, in consideration of the limitations of the prior art, a new image extraction method that can additionally consider a climate index in addition to metadata in image extraction is followed.

Here, the climate index is expressed as one index by comprehensively considering a number of weather factors corresponding to temperature, relative humidity, wind speed, and insolation on a specific date, and is a standard for evaluating weather conditions regardless of region and season. Can be understood as.

In one embodiment of the present invention, as such a climate index, a universal thermal climate index (UTCI) is adopted, but in addition to the universal thermal climate index (UTCI), for example, WCI (Wind Chill Index), NWCI (New Wind Chill Index), ASV (Actual Sensation Vote), TS (Thermal sensation), DI (Discomfort Index), and CAI (Comprehensive air-quality index) it is also possible to select at least one index.

After all, in the image recommendation service environment according to an embodiment of the present invention, an image can be extracted through a new extraction method that additionally considers the climate index (UTCI) in addition to the metadata included in the image. The configuration of the image recommendation device 20 to be described will be described in more detail.

2 schematically shows the configuration of an image recommendation device 20 according to an embodiment of the present invention.

As shown in FIG. 2, the image recommendation apparatus 20 according to an embodiment of the present invention includes a selection unit 21 for selecting a past date showing a climate index matching the current date, and an image among the selected past dates. It may have a configuration including a designation unit 22 for designating an extraction target date for extraction.

In addition, the image recommendation apparatus 20 according to an embodiment of the present invention may further include a configuration of a generator 23 that extracts an image and generates extraction information in addition to the above-described configuration.

The entire configuration or at least a portion of the image recommendation device 20 may be implemented in the form of a hardware module or a software module, or may be implemented in a form in which a hardware module and a software module are combined.

Here, the software module may be understood as, for example, a command executed by a processor that processes an operation in the image recommending device 20, and such a command is a form mounted in a separate memory in the image recommending device 20. I can have it.

On the other hand, the image recommendation apparatus 20 according to an embodiment of the present invention may further include a configuration of the communication unit 24, which is an RF module responsible for a practical communication function with the terminal 10, in addition to the above configuration.

Here, the communication unit 24 includes, for example, an antenna system, an RF transceiver, one or more amplifiers, a tuner, one or more oscillators, a digital signal processor, a codec chipset, and a memory, but is not limited thereto. Any known circuit to perform may be included.

As described above, the image recommendation apparatus 20 according to an embodiment of the present invention selects a past date showing a climate index (UTCI) matched with the current date through the above-described configuration, and an image photographed on the selected past date (eg: Recommendation information including photos and videos) may be generated. Hereinafter, each component in the image recommending apparatus 20 for realizing this will be described in more detail.

The selection unit 21 performs a function of selecting a past date showing a climate index matching the current date.

More specifically, the selection unit 21 selects a past date showing a climate index matched with the current date according to the recommended service request received from the terminal 10.

At this time, the selection unit 21 calculates the climate index in consideration of the weather factor of the current date as the reference climate index, and compares the calculated reference climate index with the previously stored climate index for each past date. Past dates that showed the climate index matched with can be selected.

Here, matching with the reference climate index can be understood as belonging to a similar category in which the difference from the reference climate index falls within the set error range, and the set error range for determining the similar category is determined according to the accuracy of the recommended service. It goes without saying that the number can be set by adding or subtracting it.

Meanwhile, the recommended service according to an embodiment of the present invention may be provided on an area basis, and thus, a case where a recommended service is requested for an area limited to a specific area from the terminal 10 may be considered.

Here, the specific area may correspond to, for example, an area designated by the terminal 10, an area in which the terminal 10 is currently located, or other areas excluding an area in which the terminal 10 is currently located.

In this regard, when a recommendation service for a specific area is requested, the selection unit 21 determines whether the specific area for which the recommendation service is requested has climate maintenance characteristics, and matches the reference climate index according to the determination result. You can select past dates that showed the climate index.

Here, the climate maintenance characteristic refers to a climate characteristic in which the difference between climate indices by date for a certain period of time remains within a set error range.

For example, in the case of Korea, the weather characteristics are divided into 4 seasons at a large and 24 seasons at a minimum, and similar weather is maintained during a certain period corresponding to the same season or season. The characteristics of maintaining similar weather can be said to have climate maintenance characteristics.

Therefore, when a recommendation service for a specific area is requested, the selection unit 21 maintains a climate maintenance characteristic in which the difference between climate indices for a certain period including the current date is maintained within the set error range in the specific area for which the recommended service is requested. It can be determined whether or not.

At this time, when it is determined that the specific region for which the recommended service is requested has climate maintenance characteristics, the selection unit 21 designates a certain period in which the climate maintenance characteristics are maintained as the selection period, and a past date corresponding to the specified selection period For only, it is checked whether it matches the reference climate index.

Here, checking whether or not matching only with the past date corresponding to the selection period is to minimize the resources input for comparison with the reference climate index by limiting the target to be compared with the reference climate index to the selection period.

In other words, when the screening period is not specified, the targets of comparison with the reference climate index are all past dates before the current date, whereas when the screening period is limited, only the past days corresponding to the screening period are compared with the reference climate index. Since it is a target for comparison of, it is possible to minimize the resources (e.g., time, computing resources) for comparison with the reference climate index.

The designation unit 22 performs a function of designating an extraction target date for image extraction among past dates.

More specifically, when a past date showing a climate index matched with the current date is selected, the designation unit 22 designates at least some of the selected past dates as an extraction target date for image extraction.

In this case, the designation unit 22 may designate at least some of the past dates whose matching rate is greater than or equal to the threshold value among past dates selected according to the matching rate with the reference climate index determined for the past date as an extraction target date for image extraction. .

Here, the matching rate with the reference climate index may be determined according to a change in the climate index during a matching period set including a period including two or more adjacent dates.

In this way, determining the matching rate with the reference climate index by reflecting the change of the climate index by date during the matching period is not only the weather condition of a specific day in the past that matches the reference climate index, but also a specific date in the past that matches the reference climate index. This is to consider the weather trends for a certain period of time in the vicinity of and.

In this regard, the designation unit 22 sets the first matching period with the current date as the end date of the period, and the second matching period with the selected past date as the end or start date of the period as the same period, and the first The matching rate with the reference climate index can be determined according to the similarity between the climate index fluctuation trend in the matching period and the climate index fluctuation trend in the second matching period.

For example, referring to FIG. 3, a current date (TC), a first past date (Tp ₁ ), a second past date (Tp ₂ ), a third past date (Tp ₃ ), and a fourth past date (Tp). ₄ ) exists, and assuming that the third past date (Tp ₃ ) is selected as a past date that matches the reference climate index, the period between the _{current date (Tc) and the first past date (Tp 1) (D} ₁ ) is set as the first matching period, and the period between the second past date (Tp ₂ ), the third past date (Tp ₃ ) (D ₂ ), or the third past date (Tp ₃ ) and the fourth past date (Tp ₄ ) The period of the period (D ₃ ) is set as the second matching period, so that _{the climate index fluctuation trend of the first matching period (D 1} ) and the climate index of the second matching period (D ₂ or D ₃ ) The matching rate with the reference climate index can be determined according to the degree of similarity between the fluctuation trends.

Here, the climate index fluctuation trend during the matching period may be defined as at least one numerical value (statistical value) of, for example, a median value, an average value, and a standard deviation of the climate index for each date during the matching period.

After all, in an embodiment of the present invention, the smaller the difference between the climate index statistics value of the first matching period and the climate index statistics value of the second matching period, the higher the matching rate between the first matching period and the second matching period. It can be determined as.

On the other hand, in the case of the designation unit 22 according to an embodiment of the present invention, when the extraction target date is designated, the designated extraction target date is provided to the terminal 10, thereby causing the terminal 10 to be stored in its own storage. It is possible to support to generate recommendation information including the extracted image by extracting an image photographed on an extraction target date from among the images.

In this regard, when the extraction target date is received from the image recommendation device 20 in response to a recommendation service request to the image recommendation device 20, the terminal 10 is photographed on the extraction target date among images stored in its own storage. It is checked whether or not the created image exists.

At this time, if there is an image photographed on the extraction target date, the terminal 10 extracts the image, determines whether the extracted image includes a predefined extraction target object, and when the extraction target object is included. One year, recommendation information including the image is generated and displayed (printed) to the user.

Here, the object to be extracted is a type of object that can be included in the image, and can be defined including, for example, a person, a place (scenery), or an object related to the weather. It can be excluded from the object to be extracted.

On the other hand, the terminal 10, if the image photographed on the extraction target date does not exist in its own storage, or if a predefined extraction target object is not included in the image photographed on the extraction target date, the image recommendation device 20 You can request the generation of recommended information again.

The generation unit 23 performs a function of generating recommendation information.

More specifically, when the generation of recommendation information is requested from the terminal 10, the generation unit 23 extracts an image photographed on the extraction target date, generates recommendation information including the extracted image, and generates the recommendation information generated by the terminal. (10) will be provided.

On the other hand, the terminal 10, if the image photographed on the extraction target date does not exist in its own storage, or if a predefined extraction target object is not included in the image photographed on the extraction target date, the image recommendation device 20 You can request the generation of recommended information for.

In this case, the generation unit 23 may generate recommendation information by extracting an image captured on an extraction target date from an image shared between subscribers in a shared service to which the terminal 10 subscribes.

To this end, the generation unit 23 classifies the subscribers related to the terminal 10 according to the intimacy between subscribers defined in at least one shared service to which the terminal 10 subscribes to determine two or more extraction target groups, and prioritizes the intimacy. An image captured on an extraction target date can be extracted from images shared by subscribers belonging to each extraction target group according to the ranking.

On the other hand, if the extraction target date does not exist among the images shared by a specific extraction target group or a predefined extraction target object is not included in the image photographed on the extraction target date, the generation unit 23 prioritizes intimacy. The above process for generating recommendation information can be repeated by changing the target to the next extraction target group according to the ranking.

As described above, according to the configuration of the image recommendation device 20 according to an embodiment of the present invention, by selecting the past date showing the Universal Thermal Climate Index (UTCI) matched with the current date, the selected past By providing recommended information including images taken on a date (e.g., photos, videos), it is possible to refer to coordinate information such as event locations (past travel destinations) and clothing suitable for the climate index of the current date from the recommended information. It can be expected to improve user satisfaction with.

Hereinafter, a method of operating the image recommendation apparatus 20 according to an embodiment of the present invention will be described with reference to FIG. 4.

First, the selection unit 21 selects a past date showing a climate index matched with the current date according to a recommendation service request received from the terminal 10 (S11-S13).

At this time, the selection unit 21 calculates the climate index in consideration of the weather factor of the current date as a reference climate index, and matches the current date by comparing the calculated reference climate index with the previously stored climate index for each past date. Past dates can be selected for the displayed climate index.

Here, the specific area corresponds to, for example, an area designated by the terminal 10, an area in which the terminal 10 is currently located, or other areas except the area in which the terminal 10 is currently located.

Here, the climate maintenance characteristic refers to a climate characteristic in which the difference between climate indices is maintained within a set error range for a certain period of time.

Therefore, when a recommendation service for a specific area is requested, the selection unit 21 maintains a climate maintenance characteristic in which the difference between climate indices for a certain period including the current date is maintained within the set error range in the specific area for which the recommended service is requested. It is determined whether or not.

At this time, when it is determined that the specific region for which the recommended service is requested has climate maintenance characteristics, the selection unit 21 designates a certain period in which the climate maintenance characteristics are maintained as the selection period, and a past date corresponding to the specified selection period It is possible to check whether or not it matches the reference climate index only for.

Subsequently, when a past date showing a climate index matched with the current date is selected, the designation unit 22 designates at least a part of the selected past date as an extraction target date for image extraction and provides it to the terminal 10 (S14). -S15).

Here, the matching rate with the reference climate index may be determined according to a change in the climate index during the matching period, which is set as a period including two or more days adjacent to each other.

In this way, determining the matching rate with the reference climate index by reflecting the change of the climate index by date during the matching period is not only the weather condition of a specific day in the past that matches the reference climate index, but also a specific date in the past that matches the reference climate index. This is to take into account the weather trends during the neighboring period.

Here, the climate index fluctuation trend during the matching period may be defined as, for example, a numerical value of at least one of a median value, an average value, and a standard deviation of the climate index for each date during the matching period.

On the other hand, in the case of the designation unit 22, when the extraction target date is designated according to step'S15', by providing the designated extraction target date to the terminal 10, the terminal 10 allows the It is possible to support to generate recommendation information including the extracted image by extracting the image photographed on the extraction target date.

In this regard, FIG. 5 schematically shows an operation method in the terminal 10 for generating recommendation information.

First, when the extraction target date is received from the image recommendation device 20 in response to a recommendation service request to the image recommendation device 20, the terminal 10 is an image captured on the extraction target date among images stored in its own storage. It is checked whether or not is present (S31-S33).

At this time, if there is an image photographed on the extraction target date, the terminal 10 extracts the image, determines whether the extracted image includes a predefined extraction target object, and only when the extraction target object is included. Recommendation information including the corresponding image is generated and displayed (output) to the user (S33-S35, S38).

On the other hand, the terminal 10 confirms that the image photographed on the extraction target date in step'S33' does not exist in its own storage, or the extraction target object defined in the image photographed on the extraction target date in step'S34' If is not included, it is possible to request the image recommendation device 20 to generate recommendation information again, and receive recommendation information from the image recommendation device 20 (S36-S37).

Hereinafter, a description of the operation method in the image recommendation device 20 will be continued with reference to FIG. 4 again.

When the generation of recommendation information is requested from the terminal 10 after providing the extraction target date specified through step'S15', the generation unit 23 extracts the target from the image shared between subscribers in the shared service to which the terminal 10 subscribes. An image photographed on a date is extracted, and recommendation information including the extracted image is generated and provided to the terminal 10 (S16-S20).

At this time, the generation unit 23 classifies the subscribers related to the terminal 10 according to the intimacy between subscribers defined in at least one shared service to which the terminal 10 subscribes, determines two or more extraction target groups, and prioritizes the intimacy. According to this, an image captured on an extraction target date may be extracted from an image shared by a subscriber belonging to each extraction target group, and recommendation information including the extracted image may be generated.

On the other hand, the generation unit 23 does not have an extraction target date among the images shared by a specific extraction target group in step'S18', or a predefined extraction target on the image captured on the extraction target date in step'S19'. If the object is not included, the above process for generating recommendation information may be repeated by changing the target to the next extraction target group according to the intimacy priority (S21).

For reference, in one embodiment of the present invention, as well as the above-described embodiment, in the case of a user without intimacy or other users without a picture that may be exposed, the operation of generating recommendation information by using all shared pictures stored in the server. It is also possible, of course.

As described above, according to the operating method of the image recommendation device 20 according to an embodiment of the present invention, a past date showing a Universal Thermal Climate Index (UTCI) matched with the current date is selected, and the selected By providing recommended information including images taken on a past date (eg, photos, videos), it is possible to refer to coordinate information such as event locations (past travel destinations) and clothing suitable for the climate index of the current date from the recommended information, so it is recommended. It can be expected to improve user satisfaction with the service.

Meanwhile, the functional operations and implementations of the subject described in this specification are implemented as digital electronic circuits, or computer software, firmware, or hardware including the structures disclosed in this specification and structural equivalents, or at least one of them. It can be implemented in combination. Implementations of the subject matter described herein are one or more computer program products, i.e., one or more modules relating to computer program instructions encoded on a tangible program storage medium for execution by or for controlling the operation of a processing system. Can be implemented.

The computer-readable medium may be a machine-readable storage device, a machine-readable storage substrate, a memory device, a composition of materials that affect a machine-readable radio wave signal, or a combination of one or more of them.

In this specification, the term "system" or "device" encompasses all devices, devices, and machines for processing data, including, for example, a programmable processor, a computer, or multiple processors or computers. In addition to hardware, the processing system may include, for example, a code constituting a processor firmware, a protocol stack, a database management system, an operating system, or a combination of one or more of them, etc., to form an execution environment for a computer program upon request. .

Computer programs (also known as programs, software, software applications, scripts or code) can be written in any form of a compiled or interpreted language or a programming language, including a priori or procedural language, and can be written as a standalone program or module, It can be deployed in any form, including components, subroutines, or other units suitable for use in a computer environment. Computer programs do not necessarily correspond to files in the file system. A program may be in a single file provided to the requested program, or in multiple interactive files (e.g., files that store one or more modules, subprograms or parts of code), or part of a file that holds other programs or data. (Eg, one or more scripts stored within a markup language document). The computer program may be deployed to run on one computer or multiple computers located at one site or distributed across a plurality of sites and interconnected by a communication network.

Meanwhile, computer-readable media suitable for storing computer program instructions and data include, for example, semiconductor memory devices such as EPROM, EEPROM, and flash memory devices, such as magnetic disks such as internal hard disks or external disks, magneto-optical disks, and CDs. -May contain all types of nonvolatile memory, media and memory devices, including ROM and DVD-ROM disks. The processor and memory can be supplemented by special purpose logic circuitry or incorporated into it.

Implementations of the subject matter described herein include a backend component, such as a data server, or a middleware component such as an application server, or, for example, a web browser or graphical user that allows a user to interact with an implementation of the subject matter described herein. It may be implemented in a front-end component, such as a client computer having an interface, or a computing system that includes any combination of one or more of such back-ends, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication, for example a communication network.

While this specification includes details of a number of specific implementations, these should not be construed as limiting to the scope of any invention or claimable, but rather as a description of features that may be peculiar to a particular embodiment of a particular invention. It must be understood. Likewise, certain features described herein in the context of separate embodiments may be implemented in combination in a single embodiment. Conversely, various features described in the context of a single embodiment can also be implemented in multiple embodiments individually or in any suitable sub-combination. Furthermore, although features operate in a particular combination and may be initially described as so claimed, one or more features from a claimed combination may in some cases be excluded from the combination, and the claimed combination may be a sub-combination. Or sub-combination variations.

In addition, although the present specification describes the operations in the drawings in a specific order, it is not understood that such operations should be performed in the specific order or sequential order shown in order to obtain a desirable result, or that all illustrated operations should be performed. Can not be done. In certain cases, multitasking and parallel processing can be advantageous. In addition, the separation of the various system components of the above-described embodiments should not be understood as requiring such separation in all embodiments, and the program components and systems described are generally integrated together into a single software product or packaged in multiple software products. It should be understood that you can

As such, this specification is not intended to limit the invention to the specific terms presented. Accordingly, although the present invention has been described in detail with reference to the above-described examples, those skilled in the art can make modifications, changes, and modifications to these examples without departing from the scope of the present invention. The scope of the present invention is indicated by the claims to be described later rather than the detailed description, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts should be construed as being included in the scope of the present invention. do.

Claims

A selection unit that selects a past date showing a climate index matched with the current date based on a reference climate index, which is a climate index calculated for the current date; And

And a designation unit for designating at least some of the past dates selected according to the matching rate with the reference climate index as an extraction target date for image extraction.
The method of claim 1,

The image recommendation device,

And a generator for generating recommendation information including the extracted image by extracting the image photographed on the extraction target date.
The method of claim 1,

The selection unit,

An image recommendation device, characterized in that for selecting a past date showing a difference in a climate index within a set error range with the reference climate index.
The method of claim 1,

The selection unit,

When a recommended service for a specific area is requested, it is determined whether the specific area has a climate maintenance characteristic in which the difference between climate indexes is maintained within a set error range for a certain period including the current date,

When it is determined that the specific region has the climate maintenance characteristics, the predetermined period is designated as a selection period, and the reference climate index is checked for matching only with respect to the past date corresponding to the selection period. Recommended device.
The method of claim 1,

The matching rate is,

An image recommendation device, characterized in that it is determined based on a climate index fluctuation trend during a matching period, which is a period including two or more adjacent dates.
The method of claim 5,

The matching rate is,

According to the similarity between climate index fluctuation trends for the first matching period with the current date as the end date of the period, and the second matching period with the past date showing the climate index matched with the reference climate index as the end or start date of the period. Image recommendation device, characterized in that determined.
The method of claim 2,

The generation unit,

When the image photographed on the extraction target date does not exist in the terminal that requested the generation of the recommendation information, or a predefined extraction target object does not exist in the image photographed on the extraction target date, from an image shared from another terminal An image recommendation device, characterized in that for generating recommendation information by extracting the image photographed on the extraction target date.
The method of claim 7,

The generation unit,

The subscribers related to the terminal are classified according to the intimacy between subscribers in at least one shared service to which the terminal subscribes to determine two or more extraction target groups, and the subscribers belonging to each extraction target group according to the intimacy priority An image recommendation device, characterized in that extracting an image photographed on the extraction target date from the image.
A selection step of selecting a past date showing a climate index matched with the current date based on a reference climate index, which is a climate index calculated for the current date; And

And a designating step of designating at least some of the past dates selected according to the matching rate with the reference climate index as an extraction target date for image extraction.
The method of claim 9,

The above method,

And a generating step of generating recommendation information including the extracted image by extracting the image photographed on the extraction target date.
The method of claim 9,

The matching rate is,

A method of operating an image recommendation apparatus, characterized in that it is determined based on a climate index fluctuation trend during a matching period, which is a period including two or more adjacent dates.
The method of claim 11,

The matching rate is,

According to the similarity between climate index fluctuation trends for the first matching period with the current date as the end date of the period, and the second matching period with the past date showing the climate index matched with the reference climate index as the end or start date of the period. Operation method of the image recommendation device, characterized in that determined.