CN114383377B - Image partitioning method for refrigerator storage space, refrigerator and computer readable storage medium - Google Patents

Image partitioning method for refrigerator storage space, refrigerator and computer readable storage medium Download PDF

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Publication number
CN114383377B
CN114383377B CN202011127067.3A CN202011127067A CN114383377B CN 114383377 B CN114383377 B CN 114383377B CN 202011127067 A CN202011127067 A CN 202011127067A CN 114383377 B CN114383377 B CN 114383377B
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China
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information
refrigerator
picture information
area
door body
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CN114383377A (en
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高洪波
孔令磊
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HEFEI HAIER REFRIGERATOR CO Ltd
Haier Smart Home Co Ltd
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HEFEI HAIER REFRIGERATOR CO Ltd
Haier Smart Home Co Ltd
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Priority to CN202011127067.3A priority Critical patent/CN114383377B/en
Publication of CN114383377A publication Critical patent/CN114383377A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers

Abstract

The application discloses an image partitioning method of a refrigerator storage space, a refrigerator and a computer readable storage medium. According to the method, the pictures shot in the storage space of the refrigerator are accurately partitioned in blocks, so that the areas of the newly placed food materials and the areas of the removed food materials can be intelligently judged, the local positions are identified, detection of other irrelevant areas is avoided, the identification accuracy and efficiency are greatly improved, the intelligent degree is higher, and the use experience of a user is better.

Description

Image partitioning method for refrigerator storage space, refrigerator and computer readable storage medium
Technical Field
The present application relates to a method for partitioning an image of a storage space of a refrigerator, and more particularly, to a refrigerator and a computer-readable storage medium related to the method.
Background
With further improvement of living standard and further development of technology, requirements of users on household appliances are further improved, and intelligentization of the household appliances is further required. For the change condition of food materials in the refrigerator, various schemes exist at present, such as obtaining the weight change condition of objects at different positions in the refrigerator through a plurality of weight sensors, obtaining video taking in and out through a video stream shooting mode by using a high-speed camera or a depth camera, and the like, and the realization of the methods has advantages and disadvantages, but has the problem of higher realization cost, so that the competitiveness of products is small; in addition, if the type of food in the refrigerator needs to be judged, the recognition accuracy is not high enough when the type of food is judged in an image recognition mode, and the problems affect the user experience.
Disclosure of Invention
To solve the problems in the prior art, an object of the present application is to provide an image partitioning method for a storage space of a refrigerator, a refrigerator and a computer-readable storage medium.
In order to achieve the above object, an embodiment of the present application provides an image partitioning method for a storage space of a refrigerator, including the steps of:
acquiring state information of a refrigerator door body;
when the state information is that the door body is closed again after being opened, the current picture information A of the storage space is obtained n ；
Comparing the current picture information A n And the last picture information A before the door body is opened n-1 Obtaining difference information B n1 ；
Comparing the current picture information A n And background picture information A when food materials are not placed in the refrigerator 0 Acquiring foreground information B m1 ；
Traversing current picture information A n Each pixel point i (x, y) is respectively connected with the difference information B n1 And the foreground information B m1 Comparing;
if pixel point i epsilon B n1 And i epsilon B m1 Setting the area where the pixel point i is located as the area where food materials are put in after the door body is opened;
if the pixel pointsAnd i epsilon B n1 And setting the area where the pixel point i is located as the area where the food material is moved out after the door body is opened.
As a further improvement of the present application, the method further comprises the steps of: if pixel point i epsilon B m1 And is also provided withThe area where the pixel point i is located is set to be the area where food materials are put in and not moved out before the door body is opened.
As a further improvement of the present application, the method further comprises the steps of: if the pixel pointsAnd->And setting the area where the pixel point i is located as a background area where no food material is placed before and after the door body is opened.
As a further improvement of the present application, the step of comparing the current picture information a n And the last picture information A before the door body is opened n-1 Obtaining difference information B n1 "comprising:
comparing the current picture information A by a frame difference method n And the last picture information A before the door body is opened n-1 Generating difference picture information B n At the difference picture information B n In each pixel point of the current picture information A n And the last picture information A n-1 The pixel value which is unchanged is 0 compared with the pixel value which is changed to be 1;
according to the difference picture information B n Generating difference information B n1 The difference picture information B n1 For the difference picture information B n A set of pixel points with all pixel values of 1.
As a further improvement of the present application, the step of comparing the current picture information a n And background picture information A when food materials are not placed in the refrigerator 0 Acquiring foreground information B m1 "comprising:
comparing the current picture information A by background subtraction n And background picture information A when food materials are not placed in the refrigerator 0 Generating foreground picture information B m The foreground picture information B m The pixel value of the foreground is 1, and the pixel value of the background is 0;
according to the foreground picture information B m Generating foreground information B m1 The foreground information B m1 For the foreground picture information B m A set of pixel points with all pixel values of 1.
As a further improvement of the present application, the method further comprises the steps of: when the area of the pixel point i is the area of the food material which is put in or removed after the door body is opened, carrying out image recognition on the area of the food material which is put in or removed, and acquiring food material information.
As a further improvement of the present application, the method further comprises the steps of:
determining heat value information of the food materials put in and removed according to the food material information, the area for putting in the food materials and the area for removing the food materials;
and generating diet intake information and food material purchase proposal information of the user according to the caloric value information.
In order to achieve one of the above objects, an embodiment of the present application provides a refrigerator, including a case, a door, a storage space surrounded by the case and the door, a storage module, and a processing module, where the storage module stores a computer program that can run on the processing module, the refrigerator further includes a monitoring module and a camera module, the monitoring module obtains status information of opening and closing the door, the camera module obtains picture information of the storage space, and the processing module executes the computer program to implement the steps in the image partition method of the storage space of the refrigerator.
As a further development of the application, a communication module is also included, which uploads the area into which food material is placed and/or the area from which food material is removed to a server for analysis and identification.
To achieve one of the above objects, an embodiment of the present application provides a computer readable storage medium having a computer program stored thereon, the computer program implementing the steps in the above-mentioned image partitioning method of a refrigerator storage space when executed by a processing module.
Compared with the prior art, the application has the following beneficial effects: through carrying out accurate block division to the picture that the thing space was shot of putting of refrigerator, make it can intelligent judgement newly put into the region of edible material, and the region of edible material of moving out, discernment to these local positions makes its recognition efficiency promote greatly, and because it can avoid the detection of other irrelevant regions, make the rate of accuracy of discernment also promote greatly, also can be clear when discernment the edible material of discernment region is the migration or take out, its intelligent degree is high, the demand of wisdom household electrical appliances has been satisfied, user's use experience is better.
Drawings
FIG. 1 is a flow chart of an image partitioning method for a storage space of a refrigerator according to an embodiment of the application;
FIG. 2 is a schematic diagram of a control module according to an embodiment of the application;
1, a refrigerator; 11. a camera module; 12. a monitoring module; 13. a processing module; 14. a storage module; 15. a communication module; 16. a communication bus.
Detailed Description
The present application will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the application and structural, methodological, or functional modifications of these embodiments that may be made by one of ordinary skill in the art are included within the scope of the application.
The embodiment of the application provides an image partitioning method for a refrigerator storage space, a refrigerator and a computer readable storage medium, by which a new food material area and a removed food material area can be conveniently screened out, so that the identification amount is simplified, the identification accuracy is improved, and the intelligent degree is higher.
The image partitioning method provided in this embodiment is applied to a refrigerator 1, the refrigerator 1 includes a box body, a door body, a storage space surrounded by the box body and the door body, a storage module 14 and a processing module 13, food materials to be refrigerated are placed in the storage space, the storage module 14 stores a computer program capable of running on the processing module 13, the refrigerator 1 further includes a monitoring module 12 and a camera module 11, the monitoring module 12 obtains status information of opening and closing the door body, the camera module 11 obtains picture information of the storage space, and the processing module 13 can implement steps in the image partitioning method of the storage space of the refrigerator 1 in this embodiment when executing the computer program, and the control method steps in this embodiment are shown in fig. 1.
It should be noted that, although the present application provides the steps of the image partitioning method for the storage space of the refrigerator 1 according to the following embodiments or flowcharts, the execution sequence of some steps is not limited to the execution sequence provided in the embodiments of the present application, among the steps in which there is no logically necessary causal relationship in the method based on conventional or non-creative labor.
Specifically, the method comprises the following steps:
step 101: acquiring state information of a door body of the refrigerator 1; the status information mainly includes the opened or closed state of the door of the refrigerator 1, and the status information can be monitored by the monitoring module 12 and transmitted to the processor. The state information of opening or closing the door body can be obtained through a magnetic sensitive switch, a Hall sensor, an angle sensor, a mechanical device for detecting opening and closing of the door body and the like which are arranged on the door body or the box body, and the door body can be regarded as a user to possibly operate the articles in the refrigerator 1 during the opening and closing of the door body, so that the steps are carried out without any detection, and only the door body is required to be operated after being opened and closed, so that the operation efficiency is higher.
Step 102: when the state information is that the door body is closed again after being opened, the current picture information A of the storage space is obtained n ；
Current picture information a n Can be obtained by a camera module 11, the camera module 11 comprises a camera which can be arranged on a door body of the refrigerator 1, can shoot towards the storage space from the direction of the door body towards the refrigerator body, or is arranged at the top of the storage space, can shoot the storage space below, can obtain pictures in the storage space, and can be operated only after the door body is opened and closed again, and can obtain the current picture information A n The picture can be regarded as a state after the user has taken or placed.
Step 103: comparing the current picture information A n And the last picture information A before the door body is opened n-1 Obtaining difference information B n1 . The difference information B n1 Representing the current diagramSheet information A n And the last picture information A before the door body is opened n-1 The difference is that the article originally existing in the refrigerator 1 is moved out, or the article not originally existing in the refrigerator 1 is moved in, or the article originally existing in the refrigerator 1 is moved to a new position, in which case the original position and the new position of the article are shown in the difference information B n1 Is a kind of medium.
Step 104: comparing the current picture information A n And background picture information A when food is not placed in the refrigerator 1 0 Acquiring foreground information B m1 . The foreground information B m1 Embody the current picture information A n With background picture information A when no food is placed in refrigerator 1 0 Different contents, background picture information A 0 Namely, the picture is purely background picture in the object placing space, and the foreground information B m1 Information of existing food materials in the refrigerator 1, which is distinguished from background information, is embodied.
Step 105: traversing current picture information A n Each pixel point i (x, y) of the image is respectively connected with the difference information B n1 And the foreground information B m1 Comparing; the set of all pixel points i is all the areas of a complete image.
If pixel point i epsilon B n1 And i epsilon B m1 Setting the area where the pixel point i is located as the area where food materials are put in after the door body is opened; due to i E B m1 So that food material is present in the region of i and since i e B n1 The food material in the region i is newly appeared after the door body is opened and closed again, so the position of the pixel point i is the region where the food material is placed after the door body is opened, and the collection of a plurality of the pixel points i is the whole region where the food material is placed after the door body is opened.
If the pixel pointsAnd i epsilon B n1 Setting the area where the pixel point i is located as the area where the door body moves out of the food material after being opened, because +.>So no food material is present in the region of i and since i e B n1 Therefore, the information in the i area is different in the situation after the door body is opened and closed again, that is, the food exists in the position before the door body is opened, so that the position of the pixel point i is the area where the food is moved out after the door body is opened, and the collection of a plurality of pixel points i is the whole area where the food is moved out after the door body is opened.
Consider the case where the food in the refrigerator 1 is not moved but is merely moved, the pixel point at the original positionAnd i epsilon B n1 And pixel point i epsilon B at new position n1 And i epsilon B m1 Here, it can be considered that the food material in the original position is taken out, and the food material in the new position is put in, for example, an apple is put in the original position, and now an apple appears in the new position, and the above-mentioned partitioning method is used, that is, the area in the original position is the area in which the apple is taken out, and the area in the new position is the area in which the apple is put in.
The execution sequence without causal relation in the above steps may be sequentially adjusted, for example, step 103 and step 104 may be changed up and down in the execution sequence, and finally, the comparison of the pixel point i may be achieved.
Further, the method of the present embodiment further includes the steps of: if pixel point i epsilon B m1 And is also provided withThe area where the pixel point i is located is set to be the area where food materials are put in and not moved out before the door body is opened. Due to->The information in the region of i is unchanged before and after the door body is opened and closed, and i is E B m1 So that the information in the region i is eaten after the door body is closed and displayedThe material, that is, the food material exists at the position before the door body is opened, and further indicates that the area where the pixel point i is located is the area where the food material is put in and not moved out before the door body is opened, and the collection of a plurality of pixel points i is the whole area where the food material is not moved out after the door body is opened.
And, further comprising the steps of: if the pixel pointsAnd->And setting the area where the pixel point i is located as a background area where no food material is placed before and after the door body is opened. Due to->The information in the region of i is unchanged before and after the opening and closing of the door body, and is due to +.>Therefore, after the door body is closed and displayed, no food exists in the information in the area i, that is, no food exists in the position before the door body is opened, and further the area where the pixel point i is located is an area where no food is placed before and after the door body is opened, and a plurality of the pixel points i are assembled, namely all the areas where no food is placed before and after the door body is opened.
By associating each pixel point with difference information B n1 And foreground information B m1 To judge whether it inputs any set, and to acquire the current picture information A obtained by the camera module 11 in the refrigerator 1 n The door is divided into four areas, namely an area for placing food after the door body is opened, an area for removing the food after the door body is opened, an area for placing the food before the door body is opened and not removed, and a background area for not placing the food before and after the door body is opened. When the food materials which are taken in and/or removed are required to be further analyzed, only the area in which the food materials are removed after the door body is opened and the area in which the food materials are put after the door body is opened are analyzed, the workload is greatly reduced,the identification speed is faster, other irrelevant contents are prevented from being identified, and the identification accuracy is higher.
Further, the step of comparing the current picture information a n And the last picture information A before the door body is opened n-1 Obtaining difference information B n1 "comprising:
comparing the current picture information A by a frame difference method n And the last picture information A before the door body is opened n-1 Generating difference picture information B n At the difference picture information B n In each pixel point of the current picture information A n And the last picture information A n-1 The pixel value which is unchanged is 0 compared with the pixel value which is changed to be 1;
according to the difference picture information B n Generating difference information B n1 The difference picture information B n1 For the difference picture information B n A set of pixel points with all pixel values of 1. Difference picture information B n Comprises all pixel points, wherein some pixel points are represented by 0, some pixel points are represented by 1, and the difference information B n1 Only difference picture information B n A set of all pixels indicated with 1.
And, the step of comparing the current picture information A n And background picture information A when food is not placed in the refrigerator 1 0 Acquiring foreground information B m1 "comprising:
comparing the current picture information A by background subtraction n And background picture information A when food is not placed in the refrigerator 1 0 Generating foreground picture information B m The foreground picture information B m The pixel value of the foreground is 1, and the pixel value of the background is 0;
according to the foreground picture information B m Generating foreground information B m1 The foreground information B m1 For the foreground picture information B m A set of pixel points with all pixel values of 1. Foreground picture information B m Comprises all pixel points, wherein some pixel points are represented by 0, some pixel points are represented by 1,the foreground information B m1 Only foreground picture information B m A set of all pixels indicated with 1.
In addition, the method of the present embodiment further includes the steps of: when the area of the pixel point i is the area of the food material which is put in or removed after the door body is opened, carrying out image recognition on the area of the food material which is put in or removed, and acquiring food material information.
The method also comprises the following steps:
determining heat value information of the food materials put in and removed according to the food material information, the area for putting in the food materials and the area for removing the food materials;
and generating diet intake information and food material purchase proposal information of the user according to the caloric value information.
After judging the specific information of moving out or putting in the food, the type of the food can be judged by identifying the image of the area, further, because the size of the moved out or put in image area is clear, the distance between the camera module 11 and the rack for placing the food is clear, the volume of the food can be judged according to the distance between the food and the camera module 11 and the size of the food picture, the heat value information of the food can be calculated by combining the reference unit volume weight value of the food, and more intelligent applications related to the space partitioning method are further developed on the basis.
In addition, the refrigerator 1 further comprises a communication module 15, and the communication module 15 uploads the area in which the food material is placed and/or the area in which the food material is removed to a server for analysis and identification.
And the refrigerator 1 may further include a communication bus 16, where the communication bus 16 is used to establish a connection between the processing module 13, the camera module 11, the monitoring module 12, the storage module 14, and the communication module 15, and the communication bus 16 may include a path for transmitting information between the above-mentioned electrical components.
The present application provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements any one of the steps of the image partition method of the storage space of the refrigerator 1 as described above, that is, implements the steps of any one of the technical solutions of the image partition method of the storage space of the refrigerator 1 as described above.
The processing module 13 of the present application may be integrated into one processing module, or each module may exist alone physically, or 2 or more modules may be integrated into one module. The integrated modules may be implemented in hardware or in hardware plus software functional modules.
The integrated modules, which are implemented in the form of software functional modules, may be stored in a computer readable storage medium. The software functional modules described above are stored in a storage medium and include instructions for causing a computer system (which may be a personal computer, a server, or a network system, etc.) or a processing module (processor) to perform some of the steps of the methods described in the various embodiments of the application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
Compared with the prior art, the embodiment has the following beneficial effects:
through carrying out accurate block division to the picture that the thing space was shot of putting of refrigerator, make it can intelligent judgement newly put into the region of edible material, and the region of edible material of moving out, discernment to these local positions makes its recognition efficiency promote greatly, and because it can avoid the detection of other irrelevant regions, make the rate of accuracy of discernment also promote greatly, also can be clear when discernment the edible material of discernment region is the migration or take out, its intelligent degree is high, the demand of wisdom household electrical appliances has been satisfied, user's use experience is better.
It should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is for clarity only, and that the skilled artisan should recognize that the embodiments may be combined as appropriate to form other embodiments that will be understood by those skilled in the art.
The above list of detailed descriptions is only specific to practical embodiments of the present application, and they are not intended to limit the scope of the present application, and all equivalent embodiments or modifications that do not depart from the spirit of the present application should be included in the scope of the present application.

Claims (10)

1. The image partitioning method for the refrigerator storage space is characterized by comprising the following steps of:
acquiring state information of a door body;
when the state information is that the door body is closed again after being opened, the current picture information A of the storage space is obtained n ；
Comparing the current picture information A n And the last picture information A before the door body is opened n-1 Obtaining difference information B n1 ；
Comparing the current picture information A n And background picture information A when food materials are not placed in the refrigerator 0 Acquiring foreground information B m1 ；
Traversing current picture information A n I (x, y) of the pixel, respectively with the difference information B n1 And the foreground information B m1 Comparing;
if pixel point i epsilon B n1 And i epsilon B m1 Setting the area where the pixel point i is located as the area where food materials are put in after the door body is opened;
if the pixel pointsAnd i epsilon B n1 And setting the area where the pixel point i is located as the area where the food material is moved out after the door body is opened.
2. The method for partitioning an image of a storage space of a refrigerator according to claim 1, further comprising the steps of: if pixel point i epsilon B m1 And is also provided withThe area where the pixel point i is located is set to be the area where food materials are put in and not moved out before the door body is opened.
3. The method for partitioning an image of a storage space of a refrigerator according to claim 1, further comprising the steps of: if the pixel pointsAnd->And setting the area where the pixel point i is located as a background area where no food material is placed before and after the door body is opened.
4. The method for partitioning an image of a storage space of a refrigerator according to claim 1, wherein said step of comparing said current picture information a n And the last picture information A before the door body is opened n-1 Obtaining difference information B n1 "comprising:
comparing the current picture information A by a frame difference method n And the last picture information A before the door body is opened n-1 Generating difference picture information B n At the difference picture information B n In each pixel point of the current picture information A n And the last picture information A n-1 The pixel value which is unchanged is 0 compared with the pixel value which is changed to be 1;
according to the difference picture information B n Generating difference information B n1 The difference picture information B n1 For the difference picture information B n A set of pixel points with all pixel values of 1.
5. The method for partitioning an image of a compartment of a refrigerator as recited in claim 1, wherein said step of comparing saidCurrent picture information a n And background picture information A when food materials are not placed in the refrigerator 0 Acquiring foreground information B m1 "comprising:
comparing the current picture information A by background subtraction n And background picture information A when food materials are not placed in the refrigerator 0 Generating foreground picture information B m The foreground picture information B m The pixel value of the foreground is 1, and the pixel value of the background is 0;
according to the foreground picture information B m Generating foreground information B m1 The foreground information B m1 For the foreground picture information B m A set of pixel points with all pixel values of 1.
6. The method for partitioning an image of a storage space of a refrigerator according to claim 1, further comprising the steps of: when the area of the pixel point i is the area of the food material which is put in or removed after the door body is opened, carrying out image recognition on the area of the food material which is put in or removed, and acquiring food material information.
7. The method for partitioning an image of a storage space of a refrigerator as set forth in claim 6, further comprising the steps of:
determining heat value information of the food materials put in and removed according to the food material information, the area for putting in the food materials and the area for removing the food materials;
and generating diet intake information and food material purchase proposal information of the user according to the caloric value information.
8. The refrigerator comprises a refrigerator body, a door body, a storage space surrounded by the refrigerator body and the door body, a storage module and a processing module, wherein the storage module stores a computer program capable of running on the processing module.
9. The refrigerator of claim 8, further comprising a communication module that uploads the area into which food material is placed and/or the area from which food material is removed to a server for analysis and identification.
10. A computer readable storage medium having stored thereon a computer program, characterized in that the computer program when executed by a processing module realizes the steps in the image partitioning method of a refrigerator storage space according to any one of claims 1 to 7.
CN202011127067.3A 2020-10-20 2020-10-20 Image partitioning method for refrigerator storage space, refrigerator and computer readable storage medium Active CN114383377B (en)

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CN111292828A (en) * 2018-12-07 2020-06-16 海信（山东）冰箱有限公司 Intelligent refrigerator and food material management method, device and storage medium thereof

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US10346796B2 (en) * 2017-08-31 2019-07-09 Whirlpool Corporation Refrigerator with contents monitoring system
KR20220007900A (en) * 2019-06-10 2022-01-20 엘지전자 주식회사 Artificial intelligent refrigerator and food storage method thereof
KR20190084913A (en) * 2019-06-28 2019-07-17 엘지전자 주식회사 Refrigerator and method for operating the refrigerator

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Publication number Priority date Publication date Assignee Title
KR20180090724A (en) * 2017-12-26 2018-08-13 구영모 Method for controlling refrigerator and refrigerator controller
CN111292828A (en) * 2018-12-07 2020-06-16 海信（山东）冰箱有限公司 Intelligent refrigerator and food material management method, device and storage medium thereof

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