CN111248762B - Control method of cooking equipment and cooking equipment - Google Patents

Control method of cooking equipment and cooking equipment Download PDF

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Publication number
CN111248762B
CN111248762B CN202010206079.9A CN202010206079A CN111248762B CN 111248762 B CN111248762 B CN 111248762B CN 202010206079 A CN202010206079 A CN 202010206079A CN 111248762 B CN111248762 B CN 111248762B
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cooking
food material
information
food
area
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CN111248762A (en
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朱泽春
李志鹏
乔中义
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Hangzhou Joyoung Household Electrical Appliances Co Ltd
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Hangzhou Joyoung Household Electrical Appliances Co Ltd
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J36/00—Parts, details or accessories of cooking-vessels
    • A47J36/32—Time-controlled igniting mechanisms or alarm devices
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00—Cooking-vessels
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/40—Extraction of image or video features
    • G06V10/44—Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersections; Connectivity analysis, e.g. of connected components
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V20/00—Scenes; Scene-specific elements
    • G06V20/10—Terrestrial scenes

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Preparation And Processing Of Foods (AREA)

Abstract

The embodiment of the application provides a control method of cooking equipment and the cooking equipment, and relates to the technical field of cooking. The cooking equipment comprises a cooking cavity and an image acquisition device, wherein the image acquisition device is used for acquiring a target image in the cooking cavity, and the method comprises the following steps: acquiring characteristic information of the food material according to the target image, wherein the characteristic information comprises the type information and the area information of the food material; cooking the food material according to the category information and the area information; the area information is used for representing the real projection area of the food material on the bottom surface of the cooking cavity. By the adoption of the method and the device, the food can be automatically cooked, and user experience is improved.

Description

Control method of cooking equipment and cooking equipment
Technical Field
The application relates to the technical field of cooking, in particular to a control method of cooking equipment and the cooking equipment.
Background
Along with the intelligent development of cooking equipment, more and more cooking equipment has the recipe recommendation function, and the user can put into corresponding edible material to cooking equipment according to the kind and the weight of edible material in the recipe, and then cooking equipment cooks the edible material according to the cooking parameter that the recipe corresponds.
However, when the weight of the food material put into the cooking device by the user is inconsistent with the weight required by the recipe, the user is required to readjust the cooking parameters or adjust the weight of the food material, and the user experience is poor. In addition, the cooking parameters corresponding to the recipe are determined according to the total weight of the food materials in the recipe, for example, taking the food material as a sweet potato, the total weight of one 500g of sweet potato is the same as that of five 100g of sweet potatoes, and the determined cooking parameters are also the same, and experiments show that the baking time required for one 500g of sweet potato is much longer than that required for five 100g of sweet potatoes, so that the cooking parameters determined according to the total weight of the food materials are inaccurate, and correspondingly, when the food materials are cooked by adopting the cooking parameters, the cooking time is too long, and the cooking effect of the food materials is poor.
Disclosure of Invention
The embodiment of the application aims to provide a control method of cooking equipment and the cooking equipment, which can automatically cook food materials and improve user experience. The specific technical scheme is as follows:
in a first aspect, a method for controlling a cooking apparatus is provided, the cooking apparatus including a cooking cavity and an image capturing device for acquiring an image of a target in the cooking cavity, the method including:
acquiring characteristic information of food materials according to the target image, wherein the characteristic information comprises type information and area information of the food materials;
cooking the food material according to the category information and the area information;
wherein the area information is used for representing the real projection area of the food material on the bottom surface of the cooking cavity.
Optionally, the step of obtaining characteristic information of the food material according to the target image includes:
identifying an area occupied by the food material in the target image;
identifying location information of the food material within the cooking cavity;
and correcting the area occupied by the food material in the target image according to the position information to obtain the area information.
Optionally, the image acquisition device is disposed at a top center of the cooking apparatus, and the position information includes horizontal position information.
Optionally, the image acquisition device is arranged above the side of the cooking equipment, and the position information includes horizontal position information and a layer where the food material bearing surface where the food material is located in the cooking cavity.
Optionally, the step of identifying the position information of the food material in the cooking cavity includes:
identifying a first edge position of the food material bearing surface at a sidewall area of the cooking device and a second edge position of the food material bearing surface at a window area of the cooking device;
determining a layer corresponding to the first edge position according to the first edge position and a preset corresponding relation between the edge position and the layer;
determining a layer corresponding to the second edge position according to the second edge position and a preset corresponding relation between the edge position and the layer;
if the level corresponding to the first edge position is the same as the level corresponding to the second edge position, determining the level corresponding to the first edge position or the level corresponding to the second edge position as the level of the food material bearing surface in the cooking cavity.
Optionally, when the number of the food materials is multiple, the step of cooking the food materials according to the category information and the area information includes:
and cooking the food materials according to the category information and the area information of each food material.
Optionally, the step of cooking the food material according to the category information and the area information includes:
determining weight information of the food material according to the category information and the area information;
and cooking the food material according to the category information and the weight information.
Optionally, the step of determining the weight information of the food material according to the category information and the area information includes:
determining weight information of the food according to pre-established corresponding relations among food type information, food area information and food weight information, the type information and the area information.
Optionally, the cooking device further includes a display device for displaying cooking parameters, and the step of cooking the food material according to the category information and the area information includes:
determining cooking parameters according to the category information and the area information;
cooking the food material according to the cooking parameters;
wherein the cooking parameters include cooking temperature and/or cooking time duration.
In a second aspect, a cooking apparatus is provided, the cooking apparatus comprising a cooking cavity and an image capture device for acquiring an image of a target within the cooking cavity, the cooking apparatus comprising a processor and a memory;
the memory is used for storing a computer program;
the processor is configured to implement the method steps of the first aspect when executing the program stored in the memory.
According to the control method of the cooking equipment and the cooking equipment, the characteristic information of the food material can be obtained according to the target image, and the characteristic information comprises the type information and the area information of the food material; cooking the food material according to the category information and the area information; the area information is used for representing the real projection area of the food material on the bottom surface of the cooking cavity. The characteristic information of the food materials is acquired through the target image and the food materials are cooked according to the characteristic information, so that the automatic cooking of the food materials is realized, the weight of the food materials is not required to be weighed by a user, the cooking parameters are not required to be adjusted, and the user experience is improved. In addition, the food materials are cooked according to the area information for representing the real projection area of the food materials on the bottom surface of the cooking cavity, and under the condition that the food materials are placed at any position in the cooking equipment, the real projection areas of the food materials on the bottom surface of the cooking cavity are the same. Therefore, the food material is cooked by adopting the area information for representing the real projection area of the food material on the bottom surface of the cooking cavity without being influenced by the placement position of the food material.
In addition, when the level of the food material bearing surface in the cooking cavity is identified, when the level corresponding to the first edge position of the food material bearing surface is the same as the level corresponding to the second edge position of the food material bearing surface, the level corresponding to the first edge position/the second edge position is used as the level of the food material bearing surface in the cooking cavity, so that the identified level of the food material bearing surface in the cooking cavity is more accurate.
In addition, under the condition that the number of the food materials is multiple, the food material cooking method and the food material cooking system can cook according to the type information and the area information of each food material, and the cooking parameters are not determined according to the total weight of the food materials to cook like the prior art, so that the cooking time is reasonable, and the food material cooking effect is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
Fig. 1 is a schematic structural diagram of a cooking apparatus according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of another cooking apparatus provided in an embodiment of the present application;
fig. 3 is a flowchart of a control method of a cooking apparatus according to an embodiment of the present disclosure;
fig. 4 is a flowchart of a method for acquiring area information of a food material according to a target image according to an embodiment of the present application;
fig. 5 is a flowchart of a method for identifying a level of a food material bearing surface where a food material is located in a cooking cavity according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of another cooking apparatus provided in an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiment of the application provides a control method of cooking equipment, the cooking equipment can be an oven, a steaming oven, a microwave oven and the like, the cooking equipment comprises a cooking cavity and an image acquisition device, the image acquisition device is used for acquiring a target image in the cooking cavity, and the image acquisition device can be a camera. Referring to fig. 1, the image capture device 1 may be disposed at a top center position of the cooking appliance, and referring to fig. 2, the image capture device 1 may be disposed above a side of the cooking appliance. Referring to fig. 1 and 2, a plurality of food material bearing surfaces 2 may be disposed in a cooking cavity of a cooking device, when the cooking device is an oven, the food material bearing surfaces 2 may be a baking tray or a baking rack, and the food material bearing surfaces 2 may be disposed at different positions in the cooking cavity, that is, at different levels in the cooking cavity, as shown in fig. 1 and 2, two food material bearing surfaces 2 are disposed in the cooking cavity, and the two food material bearing surfaces 2 are at different levels in the cooking cavity.
The following will describe a control method of a cooking apparatus provided in an embodiment of the present application in detail with reference to specific embodiments, as shown in fig. 3, the specific steps are as follows:
s301, acquiring characteristic information of the food material according to the target image, wherein the characteristic information comprises type information and area information of the food material.
The area information is used for representing the real projection area of the food material on the bottom surface of the cooking cavity.
In the embodiment of the application, the cooking device can identify the characteristic information of the food materials in the target image, and under the condition that a plurality of food materials exist in the target image, the cooking device can identify the characteristic information of each food material. The cooking device can identify the type information of the food material in the target image through the convolutional neural network. The cooking device may also identify the area occupied by the food material in the target image, for example identifying the pixel area of the food material in the target image. The cooking device can then determine area information for characterizing the real projected area of the food material on the bottom surface of the cooking cavity according to the area occupied by the food material in the target image.
And S302, cooking the food material according to the category information and the area information.
In the embodiment of the application, the cooking equipment can cook the food material according to the acquired type information and area information. For example, the cooking device may determine the cooking parameters corresponding to the acquired type information and area information according to the acquired type information and area information and the corresponding relationship among the preset food material type information, food material area information and cooking parameters, and then the cooking device may cook the food material according to the determined cooking parameters.
Optionally, when the number of the food materials is multiple, the specific processing procedure of cooking the food materials according to the category information and the area information may be: and cooking the plurality of food materials according to the type information and the area information of each food material.
In the embodiment of the application, when the number of the food materials is multiple and all the food materials are of the same type, the cooking device may determine, from the area information of the multiple food materials, area information with the largest represented real projection area as target area information. Then cooking equipment can cook the food material according to the category information and the target area information, for example, cooking equipment can determine cooking parameters according to the category information and the target area information, and then cooking equipment can cook a plurality of food materials according to the determined cooking parameters.
When the number of the food materials is multiple and the food materials are not all of the same type, the cooking device may determine a cooking parameter corresponding to each food material according to the type information and the area information of each food material, and then the cooking device may determine a maximum cooking parameter from the cooking parameters of the food materials, and then cook the food materials according to the maximum cooking parameter.
According to the method and the device, the characteristic information of the food materials is acquired through the target image and the food materials are cooked according to the characteristic information, automatic cooking of the food materials is achieved, the user is not required to weigh the weight of the food materials and adjust cooking parameters, and user experience is improved. In addition, under the condition that the number of the food materials is multiple, the food material cooking method and the food material cooking system can cook according to the type information and the area information of each food material, and the cooking parameters are not determined according to the total weight of the food materials to cook like the prior art, so that the cooking time is reasonable, and the food material cooking effect is improved.
Optionally, the step of cooking the food material according to the category information and the area information includes: determining weight information of the food material according to the category information and the area information; and cooking the food material according to the category information and the weight information.
Optionally, the step of determining the weight information of the food material according to the category information and the area information includes: and determining the weight information of the food according to the pre-established corresponding relationship among the food type information, the food area information and the food weight information, the type information and the area information.
In the embodiment of the application, the cooking device establishes the corresponding relationship among the food material type information, the food material weight information and the food material area information in advance, and the cooking device can determine the weight information corresponding to the type information and the area information of the food material as the weight information of the food material. The cooking equipment is pre-established with the corresponding relation among the food material type information, the food material weight information and the cooking parameters, the cooking equipment can determine the cooking parameters corresponding to the food material type information and the food material weight information, and then the cooking equipment can cook the food materials according to the determined cooking parameters.
When the number of the food materials is multiple and the types of the food materials are different, the cooking device may determine a cooking parameter corresponding to each food material, and then the cooking device may cook the multiple food materials by using the maximum cooking parameter.
When the number of the food materials is multiple and the same type, the cooking device may determine, as the target area information, area information with the largest represented real projection area from the area information of the multiple food materials. Then, the cooking device can determine target weight information according to the category information and the target area information, then determine cooking parameters according to the category information and the target weight information, and then the cooking device can cook the food material according to the determined cooking parameters.
Optionally, the cooking device further includes a display device for displaying cooking parameters, and the step of cooking the food material according to the category information and the area information includes: determining cooking parameters according to the type information and the area information; and cooking the food material according to the cooking parameters.
Wherein the cooking parameters comprise cooking temperature and/or cooking time.
Optionally, an embodiment of the present application further provides a method for acquiring area information of a food material according to a target image, as shown in fig. 4, the specific steps are as follows:
s401, identifying the occupied area of the food material in the target image.
In the embodiment of the application, the cooking device may identify an area occupied by the food material in the target image, for example, identify a pixel area of the food material in the target image.
S402, identifying the position information of the food material in the cooking cavity.
The position information may include horizontal position information, or the position information may include horizontal position information and a level of the food material bearing surface where the food material is located in the cooking cavity. The horizontal position information may be a pixel coordinate of the food material in the target image, and the pixel coordinate may be a pixel coordinate of a center point of the food material in the target image. When the cooking device is an oven, the food material bearing surface may be a baking tray or a baking rack, and the level of the food material bearing surface where the food material is located in the cooking cavity indicates that the baking tray/baking rack where the food material is located at the second floor of the oven.
Optionally, the image acquisition device is disposed at a top center of the cooking apparatus, and the position information includes horizontal position information.
Optionally, the image acquisition device is disposed above the side of the cooking device, and the position information includes horizontal position information and a level of the food material bearing surface where the food material is located in the cooking cavity.
And S403, correcting the area occupied by the food material in the target image according to the position information to obtain area information.
In the embodiment of the application, the image acquisition positions are different in setting, the position information is different, and the corresponding modes for correcting the area occupied by the food materials in the target image are different.
In one embodiment, when the image capturing device is disposed at the top center position of the cooking apparatus, the position information includes horizontal position information, the horizontal position information may be pixel coordinates of the food material in the target image, and the specific manner of correcting the area occupied by the food material in the target image may include: calculating a correction compensation parameter by the following formula:
α＝Cfood-Ccamera
wherein alpha is a correction compensation parameter, CfoodIs the pixel coordinate of the food material, CcameraThe pixel coordinates of the projection point of the image acquisition device on the target image are obtained.
And calculating the product of the correction compensation parameter and the area occupied by the food material in the target image as the area information of the food material.
In another embodiment, when the image capturing device is disposed above the side of the cooking apparatus, the position information includes horizontal position information and a level of a food material bearing surface where the food material is located in the cooking cavity, the horizontal position information may be pixel coordinates of the food material in the target image, and a specific manner of correcting an area occupied by the food material in the target image may be: and determining the reference pixel coordinate of the reference point on the food material bearing surface mapped to the target image according to the level of the food material bearing surface where the food material is located in the cooking cavity. And determining correction compensation parameters according to the pixel coordinates of the food materials, the reference pixel coordinates and the pixel coordinates of the projection point of the image acquisition device on the target image. And correcting the area occupied by the food material in the target image by adopting the correction compensation parameters to obtain area information.
The reference point on the food material bearing surface can be the central point of the food material bearing surface.
The specific processing procedure of determining that the reference point on the food material bearing surface is mapped to the reference pixel coordinate of the target image according to the level of the food material bearing surface where the food material is located in the cooking cavity may be: and determining the reference pixel coordinates corresponding to the level of the food material bearing surface where the food material is located in the cooking cavity according to the level of the food material bearing surface where the food material is located in the cooking cavity and the pre-established correspondence between the level and the reference pixel coordinates.
The specific processing procedure for determining the correction compensation parameter according to the pixel coordinate of the food material, the reference pixel coordinate and the pixel coordinate of the projection point of the image acquisition device on the target image may include: calculating a first compensation parameter by the following formula:
α1＝(Cfood-Ccamera)/(C-Ccamera)
wherein alpha is1As a first compensation parameter, CfoodIs the pixel coordinate of the food material, CcameraThe pixel coordinates of the projection point of the image acquisition device on the target image are shown, and C is the reference pixel coordinates;
if the first compensation parameter is less than 1, determining the first compensation parameter as a correction compensation parameter;
if the first compensation parameter is larger than or equal to 1, calculating a second compensation parameter as a correction compensation parameter by the following formula:
α2＝1-[(C-Ccamera)-(Cfood-Ccamera)]/(C-Ccamera)
wherein alpha is2As a first compensation parameter, CfoodAs the pixel coordinates of the center point of the food material, CcameraIs the projected point pixel coordinate and C is the reference pixel coordinate.
The area occupied by the food material in the target image is corrected by adopting the correction compensation parameters, and the specific processing process for obtaining the area information can be as follows: and calculating the product of the correction compensation parameter and the area occupied by the food material in the target image as the area information of the food material.
Optionally, an embodiment of the present application further provides a method for identifying a level of a food material bearing surface where a food material is located in a cooking cavity, as shown in fig. 5, the specific steps are as follows:
s501, identifying a first edge position of the food material bearing surface in a side wall area of the cooking device and a second edge position of the food material bearing surface in a window area of the cooking device.
In the embodiment of the present application, referring to fig. 1, the cooking apparatus may identify a position (i.e., a first edge position) of the food carrying surface close to a first edge 21 of a sidewall area of the cooking apparatus, where the first edge position may be represented by a pixel coordinate of the first edge in the target image. The cooking device may also identify a location of the food material carrying surface proximate to a second edge 22 of the cooking device window area (i.e., a second edge location), which may be represented by pixel coordinates of the second edge in the target image.
And S502, determining the layer corresponding to the first edge position according to the first edge position and the preset corresponding relation between the edge position and the layer.
S503, determining the layer corresponding to the second edge position according to the second edge position and the preset corresponding relation between the edge position and the layer.
S504, if the level corresponding to the first edge position is the same as the level corresponding to the second edge position, determining the level corresponding to the first edge position or the level corresponding to the second edge position as the level of the food material carrying surface in the cooking cavity.
In the embodiment of the application, when the level corresponding to the first edge position is the same as the level corresponding to the second edge position, the cooking device determines the level corresponding to the first edge position or the second edge position as the level of the food material bearing surface in the cooking cavity, so that the determined level of the food material bearing surface in the cooking cavity is more accurate.
Optionally, if the level corresponding to the first edge position is different from the level corresponding to the second edge position, a level selection prompt message is sent to the user to obtain the level of the food material bearing surface input by the user in the cooking cavity.
Based on the same technical concept, the embodiment of the present application further provides a cooking apparatus, as shown in fig. 6, including a memory 601, a processor 602, an image capturing device 603, and a cooking cavity;
an image acquisition device 603 for acquiring a target image in the cooking cavity;
a memory 601 for storing a computer program;
the processor 602 is configured to implement the following steps when executing the program stored in the memory 601:
acquiring characteristic information of food materials according to the target image, wherein the characteristic information comprises type information and area information of the food materials;
cooking the food material according to the category information and the area information;
wherein the area information is used for representing the real projection area of the food material on the bottom surface of the cooking cavity.
Optionally, the step of obtaining characteristic information of the food material according to the target image includes:
identifying an area occupied by the food material in the target image;
identifying location information of the food material within the cooking cavity;
and correcting the area occupied by the food material in the target image according to the position information to obtain the area information.
Optionally, the image capturing device 603 is disposed at a top center position of the cooking apparatus, and the position information includes horizontal position information.
Optionally, the image capturing device 603 is disposed above a side of the cooking apparatus, and the position information includes horizontal position information and a level of the food material bearing surface where the food material is located in the cooking cavity.
Optionally, the step of identifying the position information of the food material in the cooking cavity includes:
identifying a first edge position of the food material bearing surface at a sidewall area of the cooking device and a second edge position of the food material bearing surface at a window area of the cooking device;
determining a layer corresponding to the first edge position according to the first edge position and a preset corresponding relation between the edge position and the layer;
determining a layer corresponding to the second edge position according to the second edge position and a preset corresponding relation between the edge position and the layer;
if the level corresponding to the first edge position is the same as the level corresponding to the second edge position, determining the level corresponding to the first edge position or the level corresponding to the second edge position as the level of the food material bearing surface in the cooking cavity.
Optionally, when the number of the food materials is multiple, the step of cooking the food materials according to the category information and the area information includes:
and cooking the food materials according to the category information and the area information of each food material.
Optionally, the step of cooking the food material according to the category information and the area information includes:
determining weight information of the food material according to the category information and the area information;
and cooking the food material according to the category information and the weight information.
Optionally, the step of determining the weight information of the food material according to the category information and the area information includes:
determining weight information of the food according to pre-established corresponding relations among food type information, food area information and food weight information, the type information and the area information.
Optionally, the cooking device further includes a display device for displaying cooking parameters, and the step of cooking the food material according to the category information and the area information includes:
determining cooking parameters according to the category information and the area information;
cooking the food material according to the cooking parameters;
wherein the cooking parameters include cooking temperature and/or cooking time duration.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the embodiment of the cooking apparatus, since it is substantially similar to the embodiment of the method, the description is simple, and for the relevant points, reference may be made to the partial description of the embodiment of the method.
The above description is only for the preferred embodiment of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims (7)

1. A method of controlling a cooking appliance comprising a cooking cavity and an image capture device for capturing an image of a target within the cooking cavity, the method comprising:
acquiring characteristic information of food materials according to the target image, wherein the characteristic information comprises type information and area information of the food materials;
cooking the food material according to the category information and the area information;
wherein the area information is used for representing the real projection area of the food material on the bottom surface of the cooking cavity;
the acquiring of the characteristic information of the food material according to the target image comprises the following steps:
identifying an area occupied by the food material in the target image;
determining a reference pixel coordinate of a target image mapped by a reference point on a food material bearing surface according to the level of the food material bearing surface where the food material is located in the cooking cavity;
determining correction compensation parameters according to the pixel coordinates of the food materials, the reference pixel coordinates and the pixel coordinates of the projection point of the image acquisition device on the target image;
and correcting the area occupied by the food material in the target image by adopting the correction compensation parameters to obtain area information.
2. The method of claim 1, further comprising:
identifying a first edge position of the food material bearing surface at a sidewall area of the cooking device and a second edge position of the food material bearing surface at a window area of the cooking device;
determining a layer corresponding to the first edge position according to the first edge position and a preset corresponding relation between the edge position and the layer;
determining a layer corresponding to the second edge position according to the second edge position and a preset corresponding relation between the edge position and the layer;
if the level corresponding to the first edge position is the same as the level corresponding to the second edge position, determining the level corresponding to the first edge position or the level corresponding to the second edge position as the level of the food material bearing surface in the cooking cavity.
3. The method of claim 1, wherein the step of cooking the food material according to the category information and the area information when the number of the food materials is plural comprises:
and cooking the food materials according to the category information and the area information of each food material.
4. The method of claim 1, wherein the step of cooking the food material according to the category information and the area information comprises:
determining weight information of the food material according to the category information and the area information;
and cooking the food material according to the category information and the weight information.
5. The method of claim 4, wherein the step of determining the weight information of the food material according to the category information and the area information comprises:
determining weight information of the food according to pre-established corresponding relations among food type information, food area information and food weight information, the type information and the area information.
6. The method of claim 1, wherein the cooking device further comprises a display device for displaying cooking parameters, and the step of cooking the food material according to the category information and the area information comprises:
determining cooking parameters according to the category information and the area information;
cooking the food material according to the cooking parameters;
wherein the cooking parameters include cooking temperature and/or cooking time duration.
7. A cooking apparatus comprising a cooking cavity and an image capture device for obtaining an image of a target within the cooking cavity, the cooking apparatus comprising a processor and a memory;
the memory is used for storing a computer program;
the processor, when executing the program stored in the memory, is adapted to perform the method steps of any of claims 1-6.
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