CN114885098A

CN114885098A - Video shooting method, video shooting device, readable storage medium and cooking utensil

Info

Publication number: CN114885098A
Application number: CN202210448926.1A
Authority: CN
Inventors: 王雅轩; 孙裕文
Original assignee: Midea Group Co Ltd; Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
Current assignee: Midea Group Co Ltd; Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
Priority date: 2022-04-27
Filing date: 2022-04-27
Publication date: 2022-08-09

Abstract

The invention provides a video shooting method, a video shooting device, a readable storage medium and a cooking utensil, wherein the video shooting method comprises the following steps: acquiring a first food material image and a second food material image in a cooking cavity, wherein the first food material image and the second food material image are food material images shot at different angles, and/or the first food material image and the second food material image are food material images shot under the condition of different focal lengths; and shooting to obtain a target video according to the first food material image and the second food material image. The target video obtained by changing the shooting angle or the shooting focal length greatly enhances the visual impact of the user. For users without creation ability, videos with better effects can be shot, so that the operation of the users is simplified, and the use experience of the users on cooking utensils is improved.

Description

Video shooting method, video shooting device, readable storage medium and cooking utensil

Technical Field

The invention belongs to the technical field of video shooting, and particularly relates to a video shooting method, a video shooting device, a readable storage medium and a cooking utensil.

Background

Currently, a user records the cooking process of food materials by shooting videos.

The shooting experience of the user is limited, and it is generally difficult to adjust the shooting parameters for different cooking processes of food materials, which affects the shooting effect of the video.

Disclosure of Invention

The present invention is directed to solving one of the technical problems of the prior art or the related art.

In view of the above, in a first aspect, the present invention provides a video shooting method for a cooking appliance, the cooking appliance including a cooking cavity, the video shooting method including: acquiring a first food material image and a second food material image in a cooking cavity, wherein the first food material image and the second food material image are food material images shot at different angles, and/or the first food material image and the second food material image are food material images shot under the condition of different focal lengths; and shooting to obtain a target video according to the first food material image and the second food material image.

According to the video shooting method provided by the invention, in the food material cooking process, a first food material image and a second food material image in a cooking cavity are collected, a target video is manufactured according to the first food material image and the second food material image, and the target video is used for embodying the dynamic cooking process of food materials.

The cooking appliance comprises a camera shooting assembly, the first food material image and the second food material image can be food material images obtained by shooting at different angles for the camera shooting assembly, so that the first food material image and the second food material image can reflect cooking conditions of food materials at different shooting angles, the first food material image and the second food material image are synthesized into a target video, and watching experience of surrounding food materials is brought to a user.

The first food material image and the second food material image can also be food material images shot at different focal lengths, and the first food material image can be amplified or reduced to be displayed by adjusting the shooting focal length, so that the watching experience of approaching or keeping away from food materials is brought to a user.

The target video obtained by changing the shooting angle or the shooting focal length greatly enhances the visual impact of the user. For users without creation ability, videos with better effects can be shot, so that the operation of the users is simplified, and the use experience of the users on cooking utensils is improved.

In addition, according to the video shooting method in the above technical solution provided by the present invention, the following additional technical features may also be provided:

in one possible technical scheme, the cooking appliance further comprises a first camera assembly and a second camera assembly; gather first food material image and second food material image in the cooking chamber, include: the first camera shooting assembly is controlled to collect a first food material image in the cooking cavity, and the second camera shooting assembly is controlled to collect a second food material image in the cooking cavity.

In the technical scheme, a first camera shooting assembly and a second camera shooting assembly are installed in the cooking appliance, specifically, the first camera shooting assembly and the second camera shooting assembly are installed at different positions in the cooking cavity, so that the first camera shooting assembly and the second camera shooting assembly are located at different positions relative to food materials, and therefore the first camera shooting assembly and the second camera shooting assembly can shoot food material images at different angles.

The first shooting component and the second shooting component can shoot simultaneously, so that a first food material image and a second food material image are obtained respectively. Or after the first food material image is shot by the first shooting assembly, the second food material image is shot by the second shooting assembly.

The food material images under the angle are obtained through shooting of different camera components, the user can experience around watching of food materials, and the video shooting effect can be improved.

In a possible technical scheme, the cooking appliance further comprises a third camera assembly, and the third camera assembly is connected to the cooking cavity in a sliding mode or in a rotating mode;

gather first food material image and second food material image in the cooking chamber, include:

the third camera shooting assembly periodically moves along a preset moving path and collects a first food material image and a second food material image in the cooking cavity, wherein the first food material image and the second food material image are food material images shot by the third camera shooting assembly at different positions; or the third camera shooting assembly periodically rotates along a preset rotation path and collects a first food material image and a second food material image in the cooking cavity, wherein the first food material image and the second food material image are food material images shot by the third camera shooting assembly relative to the cooking cavity at different angles.

In this technical scheme, can set up the subassembly sliding connection that makes a video recording in the culinary art chamber, make a video recording the subassembly and acquire the edible material image of culinary art intracavity at the slip in-process to can shoot the edible material image under the different angles.

Also can set up the subassembly of making a video recording and rotate to connect in the culinary art chamber, the subassembly of making a video recording acquires the edible material image of culinary art intracavity at the rotation in-process to shoot and obtain the edible material image under the different angles.

The food material images under the angle are obtained through shooting of the same camera shooting assembly, the user can experience around watching of food materials, and the video shooting effect can be improved.

In one possible technical solution, acquiring a first food material image and a second food material image in a cooking cavity includes: comparing at least two food material images collected within a preset interval duration, wherein the at least two food material images comprise a first image collected currently and a second image collected before the preset interval duration; taking the first image as a first food material image under the condition that the target image feature is determined to be included in the first image; and displaying the display area of the target image characteristic by using a preset focal length to obtain a second food material image, wherein the target image characteristic is a characteristic of difference between the first image and the second image.

According to the technical scheme, two food material images within a preset interval duration are compared, and when the currently acquired food material images comprise the target image characteristics, the display area where the target image characteristics are located is displayed with a preset focal length.

Illustratively, the preset interval duration is 1 minute, and if one image captured at the time of starting cooking is taken as a reference image, it is necessary to compare a second image captured 1 minute after starting cooking with a first image, the second and first sub images being first and second images, respectively.

By comparing the first image with the second image, it can be determined whether the currently collected food material image has changed on the image relative to the food material image collected before the preset interval duration, and if the image has changed, it indicates that a certain part of the surface of the food material has changed, for example, a part of the food material has expanded, or a part of the surface of the food material has started to be scorched.

When the images in the first image and the second image are different, the target image feature exists in the first image, the feature that the first image is different from the second image is the target image feature, and the first image is determined to be the first food material image. The target image characteristics can reflect the change of the food materials in the cooking process, the display area of the target image characteristics is displayed in a preset focal length mode, the preset intersection display mode can be display in an amplifying mode or display in a reducing mode, and therefore the details of the food materials changing in the cooking process can be observed, and the dynamic change of the food materials can be observed through the manufactured video.

And comparing the currently acquired food material image with the food material image acquired before the preset interval duration every preset interval duration, and if the currently acquired food material image is changed on the image compared with the previously acquired image, amplifying the changed display area. If the currently collected food material image is not changed in image compared with the previously collected image, the amplification processing is not needed, and the image collection is continued.

In the whole cooking process, not only is a static image of the food material unchanged shot, but also the area of the food material surface where the food material surface changes is displayed, so that dynamic details can be observed clearly, and a target video is manufactured and obtained according to the food material image and the image displayed with the preset focal length. Through the mode, the video recording function in the food cooking process is automatically completed, the obtained target product can reflect the detail change of food materials, the aesthetic feeling of the target video is increased, the target video with better shooting effect can be obtained even if a user does not have shooting experience, and the use experience of the user on a cooking appliance is favorably improved.

When the display area of the target image features and the preset focal length are displayed, the display process lasts for a preset time length, so that a user can see the process that the surface of the food material changes.

Illustratively, the preset time period may be 5 seconds, 10 seconds, or the like.

In a possible technical solution, in a case that it is determined that the first image includes the target image feature, before displaying a display area of the target image feature at a preset focal length, the method further includes: determining a parameter change value of a target image feature and a first image feature in a second image, wherein the target image feature corresponds to the position of the first image feature; and performing a step of displaying the display area of the target image feature at a preset focal length based on the parameter variation value being greater than the preset value.

In the technical scheme, after the first image and the second image are compared, a parameter change value of the target image characteristic compared with the first image characteristic needs to be determined based on the fact that the first image comprises the target image characteristic.

Specifically, the position of the first image feature in the second image corresponds to the position of the target image feature in the first image, that is, the target image feature and the first image feature are at the same position in the food material image, and the first image feature and the target image feature are two features before and after the surface of the food material changes. By determining a parameter change value between the target image feature and the first image feature, a degree of change of the target image feature compared to the first image feature may be determined.

And when the parameter change value is larger than the preset value, the target image characteristic is greatly changed compared with the first image characteristic, namely the surface of the material is greatly changed. At the moment, the area where the target feature is located is displayed by the preset focal length, so that details in the food cooking process can be seen in the manufactured video, and the video shooting effect is improved.

Under the condition that the parameter change value is smaller than the preset value, the target image feature is less changed compared with the first image feature, namely, the surface of the material is not changed or is less changed, and the shooting focal length does not need to be changed.

In a possible technical solution, the step of displaying the display area of the target image feature at a preset focal length is performed based on a condition that the parameter variation value is greater than a preset value, and includes: determining the maximum variation value of the at least two parameter variation values under the condition that the target image characteristics are at least two; determining a target image feature corresponding to the maximum variation value in the at least two target image features to obtain a second image feature under the condition that the maximum variation value is larger than a preset value; and displaying the second image characteristic at a preset focal length.

In this technical solution, if the number of the target image features is at least two, it is necessary to determine a maximum parameter variation value between the first image feature and one of the at least two target image features.

Specifically, each target image feature needs to be compared with a first image feature corresponding to the position, so as to obtain at least two parameter values. The maximum variation value of the at least two parameter variation values is determined, and then it is determined whether the maximum variation value is greater than a preset value. And if the maximum change value is larger than the preset value, determining the target image characteristic corresponding to the maximum change value, and setting the target image characteristic corresponding to the maximum change value as a second image characteristic, so that the second image characteristic is the characteristic which has the largest difference with the second image in the first image.

In one possible solution, the parameters include: at least one of color information, shape information, and size information; and performing a step of displaying a display area of the target image feature at a preset focal length based on the parameter variation value being greater than a preset value, including: the change value based on the color information is larger than a preset color threshold value; and/or the change value based on the shape information is greater than a preset shape threshold; and/or based on the change value of the size information being greater than a preset size threshold, performing a step of displaying the display area of the target image feature at a preset focal length.

In the technical scheme, when the parameter change value between the target image feature and the first image feature needs to be determined, the judgment can be performed according to the change value of the color information between the target image feature and the first image feature. When the color difference between the target image feature and the first image feature is greater than the preset color threshold, it indicates that the color of the target image feature is greatly changed compared with the color of the first image feature, and at this time, the display area of the target image feature may be displayed with the preset focal length.

Illustratively, as the cooking process progresses, the food is gradually matured, the color of the surface of the food may deepen, and the deepened portion is displayed in a zoom manner, so that a user can clearly see the color change process of the surface of the food, and the video production effect is improved.

When the parameter change value between the target image feature and the first image feature needs to be determined, the judgment can be carried out according to the change value of the shape information between the target image feature and the first image feature. When the shape difference between the target image feature and the first image feature is larger than the preset shape threshold, it indicates that the shape of the target image feature is changed greatly compared with the feature of the first image feature, and at this time, the display area of the target image feature may be displayed at the preset focal length.

Illustratively, as the cooking process progresses, the food is gradually matured, the shape of part of the surface of the food is changed, and the changed part of the shape is displayed in a zoom manner, so that a user can clearly see the shape change process of the surface of the food, and the video production effect is improved.

When the parameter change value between the target image feature and the first image feature needs to be determined, the judgment can be carried out according to the change value of the size information between the target image feature and the first image feature. When the size difference between the target image feature and the first image feature is larger than the preset size threshold, it indicates that the size of the target image feature is greatly changed compared with the size of the first image feature, and at this time, the display area of the target image feature may be displayed at the preset focal length.

Illustratively, as the cooking process progresses, the food is gradually matured, the size of the surface structure of the food changes, and the changed size portion is displayed in a zoom manner, so that a user can clearly see the size change process of the surface of the food, and the video production effect is improved.

When the parameter change value between the target image feature and the first image feature needs to be determined, the zoom display process can be executed when the surface of the food material is obviously changed, based on one or at least two of color information, shape information and size information.

When the colors of a plurality of positions on the surface of the food material are changed, the area with the maximum color change is displayed in a zooming mode. Shape variations and size variations are the same.

In one possible solution, the parameter variation value includes: a pixel change value; and performing a step of displaying a display area of the target image feature at a preset focal length based on the parameter variation value being greater than a preset value, including: and performing a step of displaying the display area of the target image feature at a preset focal length based on the pixel variation value being greater than the preset pixel value.

In the technical scheme, when the parameter change value between the target image feature and the first image feature needs to be determined, the judgment can be performed according to the pixel change value between the target image feature and the first image feature. And performing pixel-level difference calculation between the target image characteristic and the first image characteristic to obtain pixel differences at various positions between the target image characteristic and the first image characteristic, and performing zoom display on the area with the maximum pixel difference change. The area with the largest pixel difference value change can reflect the area with obvious surface change of the food material, so that a user can clearly see the size change process of the surface of the food material, and the video production effect is improved.

In one possible technical solution, a display area for displaying a target image feature at a preset focal length includes: magnifying a display area for displaying the characteristics of the target image by a preset zoom factor; and displaying the display area of the target image characteristic by using the preset focusing multiple.

According to the technical scheme, when the display area of the target image characteristic needs to be displayed in a zooming mode, the display area of the target image characteristic is displayed in an amplifying mode according to the preset zooming times, so that the display area of the target image characteristic is amplified according to the preset zooming times, and the detail change process of the surface of the food material is also displayed in an amplifying mode. And then, focusing the display area of the target image characteristics by a preset focusing multiple, so that the image characteristics in the amplified display area can be clearly displayed, a user can clearly see the change process of the surface of the food material, and the video shooting effect can be improved.

In one possible technical solution, a display area for displaying a target image feature at a preset focal length includes: cutting the first image to obtain a display area for displaying the characteristics of the target image; the display area is enlarged.

In the technical scheme, when the display area of the target image feature needs to be displayed in a zooming manner, the collected food material image is cut to obtain the display area of the target image feature, and then the display area of the target image feature is amplified, for example, the display area of the target image feature is amplified by a preset multiple. The method is beneficial for users to clearly see the change process of the surface of the food material, and further beneficial for improving the video shooting effect.

In a possible technical solution, comparing at least two food material images collected within a preset interval duration, includes: dividing the first image into at least two first sub-regions, and dividing the second image into at least two second sub-regions, one first sub-region corresponding to the position of one second sub-region; the images in the first and second sub-regions are compared.

In the technical scheme, when the first image and the second image are compared, the first image and the second image are both divided into a plurality of sub-regions, and then the sub-regions in the first image and the second image are compared respectively.

Specifically, the first image is divided into at least two first sub-regions, the second image is divided into at least two second sub-regions, the positions of the first sub-regions correspond to the positions of the second sub-regions, and image features in the first sub-regions and the second sub-regions are compared, so that whether the target image features are included in the at least two first sub-regions can be quickly determined, and the first sub-regions corresponding to the target image features can be obtained.

In a possible technical solution, after obtaining the target video, the method further includes: displaying a target video on the cooking appliance; and/or output the target video to the electronic device.

In the technical scheme, the cooking appliance comprises a display screen, after the target image video is obtained, the target video can be displayed on the display screen, and a user can see the detail change of the food material in the cooking process.

The target video can also be sent to the electronic equipment, the cooking utensil and the electronic equipment can interact, a user can receive the target video on the electronic equipment, and the user can watch the target video on the electronic equipment at any time.

In a second aspect, the present invention provides a video camera for a cooking appliance, the cooking appliance including a cooking cavity, the video camera comprising: the cooking system comprises a collecting module, a processing module and a control module, wherein the collecting module is used for collecting a first food material image and a second food material image in a cooking cavity, the first food material image and the second food material image are food material images shot at different angles, and/or the first food material image and the second food material image are food material images shot under the condition of different focal lengths; and the shooting module is used for shooting according to the first food material image and the second food material image to obtain a target video.

In the food cooking process, a first food material image and a second food material image in a cooking cavity are collected, a target video is manufactured according to the first food material image and the second food material image, and the target video is used for embodying the dynamic cooking process of food materials.

The cooking utensil comprises a camera shooting assembly, the first food material image and the second food material image can be food material images obtained by shooting at different angles for the camera shooting assembly, so that the cooking conditions of food materials at different shooting angles can be embodied by the first food material image and the second food material image, and the watching experience of surrounding food materials is brought to a user.

In one possible technical scheme, the cooking appliance further comprises a first camera assembly and a second camera assembly; the acquisition module is specifically configured to: the first camera shooting assembly is controlled to collect a first food material image in the cooking cavity, and the second camera shooting assembly is controlled to collect a second food material image in the cooking cavity.

In a possible technical scheme, the cooking appliance further comprises a third camera assembly, and the third camera assembly is connected to the cooking cavity in a sliding mode or in a rotating mode; the acquisition module is specifically configured to: the third camera shooting assembly periodically moves along a preset moving path and collects a first food material image and a second food material image in the cooking cavity, wherein the first food material image and the second food material image are food material images shot by the third camera shooting assembly at different positions; or the third camera shooting assembly periodically rotates along a preset rotation path and collects a first food material image and a second food material image in the cooking cavity, wherein the first food material image and the second food material image are food material images shot by the third camera shooting assembly relative to the cooking cavity at different angles.

In a possible technical solution, the acquisition module is specifically configured to: comparing at least two food material images collected within a preset interval duration, wherein the at least two food material images comprise a first image collected currently and a second image collected before the preset interval duration; taking the first image as a first food material image under the condition that the target image feature is determined to be included in the first image; and displaying the display area of the target image characteristic by using a preset focal length to obtain a second food material image, wherein the target image characteristic is a characteristic of difference between the first image and the second image.

Illustratively, the preset interval duration is 1 minute, and if one image acquired at the time of starting cooking is taken as a reference image, it is necessary to compare a second image acquired 1 minute after starting cooking with the first image, the second image and the first image being the first image and the second image, respectively.

In a possible technical solution, the acquisition module is further configured to: determining a parameter variation value of a target image feature and a first image feature in a second image, wherein the target image feature corresponds to the position of the first image feature; and performing a step of displaying the display area of the target image feature at a preset focal length based on the parameter variation value being greater than the preset value.

In a possible technical solution, the acquisition module is further configured to: determining the maximum variation value of the at least two parameter variation values under the condition that the target image characteristics are at least two; determining a target image feature corresponding to the maximum variation value in the at least two target image features to obtain a second image feature under the condition that the maximum variation value is larger than a preset value; and displaying the second image characteristic at a preset focal length.

Specifically, each target image feature needs to be compared with a first image feature corresponding to the position, so as to obtain at least two parameter values. And determining the maximum variation value of the at least two parameter variation values, and then determining whether the maximum variation value is larger than a preset value. And if the maximum change value is larger than the preset value, determining the target image characteristic corresponding to the maximum change value, and setting the target image characteristic corresponding to the maximum change value as a second image characteristic, so that the second image characteristic is the characteristic which has the largest difference with the second image in the first image.

In one possible solution, the parameters include: at least one of color information, shape information, and size information; the acquisition module is further configured to: the change value based on the color information is larger than a preset color threshold value; and/or the change value based on the shape information is greater than a preset shape threshold; and/or based on the change value of the size information being greater than a preset size threshold, performing a step of displaying the display area of the target image feature at a preset focal length.

Illustratively, as the cooking process is carried out, the food is gradually matured, the size of the surface structure of the food is changed, and the size-changed part is displayed in a zooming manner, so that a user can clearly see the size change process of the surface of the food, and the video production effect is improved.

When the colors of a plurality of positions on the surface of the food material are changed, the area with the maximum color change is displayed in a zooming mode. Shape changes and size changes are the same.

In one possible solution, the parameter variation value comprises: a pixel change value; the acquisition module is further configured to: and performing a step of displaying a display area of the target image feature at a preset focal length based on the parameter variation value being greater than a preset value, including: and performing a step of displaying the display area of the target image feature at a preset focal length based on the pixel variation value being greater than the preset pixel value.

In a possible technical solution, the acquisition module is further configured to: magnifying a display area for displaying the characteristics of the target image by a preset zoom factor; and displaying the display area of the target image characteristic by using the preset focusing multiple.

In a possible technical solution, the acquisition module is further configured to: cutting the first image to obtain a display area for displaying the characteristics of the target image; the display area is enlarged.

In a possible technical solution, the acquisition module is further configured to: dividing the first image into at least two first sub-regions, and dividing the second image into at least two second sub-regions, one first sub-region corresponding to the position of one second sub-region; the images in the first and second sub-regions are compared.

In one possible solution, the video camera further includes: the display module is used for displaying the target video on the cooking utensil after the target video is obtained; and/or the output module is used for outputting the target video to the electronic equipment.

In a third aspect, the present invention provides a video camera for a cooking appliance, the cooking appliance including a cooking cavity, the video camera comprising:

a controller and a memory, wherein the memory has a program or instructions stored therein, and the controller implements the steps of the method according to any one of the above possible embodiments when executing the program or instructions in the memory.

In a fourth aspect, the present invention provides a readable storage medium, on which a program or instructions are stored, which when executed by a processor implement the steps of the method according to any one of the above possible embodiments.

In a fifth aspect, the present invention provides a cooking appliance, comprising: a video camera according to any one of the above possible embodiments; or a readable storage medium as in the above technical solutions.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 shows a schematic flow diagram of a video capture method in an embodiment of the invention;

FIG. 2 shows one of the block diagrams of the configuration of a video photographing apparatus in the embodiment of the present invention;

fig. 3 shows a second block diagram of the video camera according to the embodiment of the present invention.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention, taken in conjunction with the accompanying drawings and detailed description, is set forth below. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

A video photographing method, a video photographing apparatus, a readable storage medium, and a cooking appliance provided according to some embodiments of the present invention are described below with reference to fig. 1 to 3.

As shown in fig. 1, in some embodiments of the present invention, a video photographing method is provided for a cooking appliance including a cooking cavity, the video photographing method including:

step 102, acquiring a first food material image and a second food material image in a cooking cavity, wherein the first food material image and the second food material image are food material images shot at different angles, and/or the first food material image and the second food material image are food material images shot under the condition of different focal lengths;

and step 104, shooting according to the first food material image and the second food material image to obtain a target video.

According to the video shooting method provided by the embodiment, in the food material cooking process, a first food material image and a second food material image in a cooking cavity are collected, a target video is manufactured according to the first food material image and the second food material image, and the target video is used for embodying the dynamic cooking process of food materials.

In one possible embodiment, the cooking appliance further comprises a first camera assembly and a second camera assembly; gather first food material image and second food material image in the cooking chamber, include: the first camera shooting assembly is controlled to collect a first food material image in the cooking cavity, and the second camera shooting assembly is controlled to collect a second food material image in the cooking cavity.

In this embodiment, a first camera assembly and a second camera assembly are installed in the cooking appliance, and specifically, the first camera assembly and the second camera assembly are installed at different positions in the cooking cavity, so that the first camera assembly and the second camera assembly are located at different positions relative to the food material, and therefore the first camera assembly and the second camera assembly can shoot the food material images at different angles.

In a possible embodiment, the cooking appliance further comprises a third camera assembly, wherein the third camera assembly is slidably connected to the cooking cavity or rotatably connected to the cooking cavity;

In this embodiment, can set up the subassembly sliding connection of making a video recording in the culinary art chamber, the subassembly of making a video recording acquires the edible material image of culinary art intracavity at the slip in-process to can shoot the edible material image under the different angles.

In one possible embodiment, capturing a first food material image and a second food material image within a cooking cavity comprises: comparing at least two food material images collected within a preset interval duration, wherein the at least two food material images comprise a first image collected currently and a second image collected before the preset interval duration; taking the first image as a first food material image under the condition that the target image feature is determined to be included in the first image; and displaying the display area of the target image characteristic by using a preset focal length to obtain a second food material image, wherein the target image characteristic is a characteristic of difference between the first image and the second image.

In this embodiment, two food material images within a preset interval duration are compared, and when the currently acquired food material image includes the target image feature, a display area where the target image feature is located is displayed at a preset focal length.

In the whole cooking process, not only is a static image of the food material unchanged shot, but also the area of the food material surface where the food material surface changes is displayed, so that dynamic details can be observed clearly, and a target video is manufactured and obtained according to the food material image and the image displayed with the preset focal length. Through the mode, the video recording function in the food cooking process is automatically completed, the obtained target product can reflect the detail change of food materials, the aesthetic feeling of the target video is increased, the target video with better shooting effect can be obtained even if a user does not have shooting experience, and the use experience of the user on a cooking utensil is favorably improved.

In a possible embodiment, in a case where it is determined that the target image feature is included in the first image, before displaying the display area of the target image feature at the preset focal length, the method further includes: determining a parameter variation value of a target image feature and a first image feature in a second image, wherein the target image feature corresponds to the position of the first image feature; and performing a step of displaying the display area of the target image feature at a preset focal length based on the parameter variation value being greater than the preset value.

In this embodiment, after comparing the first image and the second image, it is necessary to determine a parameter variation value of the target image feature compared to the first image feature based on the target image feature included in the first image.

In a possible embodiment, the step of displaying the display area of the target image feature at the preset focal length is performed based on the parameter variation value being greater than the preset value, and includes: determining the maximum variation value of the at least two parameter variation values under the condition that the target image characteristics are at least two; determining a target image feature corresponding to the maximum variation value in the at least two target image features to obtain a second image feature under the condition that the maximum variation value is larger than a preset value; and displaying the second image characteristic at a preset focal length.

In this embodiment, if the number of target image features is at least two, it is necessary to determine the maximum parameter variation value between the first image feature and the at least two target image features.

In one possible embodiment, the parameters include: at least one of color information, shape information, and size information; and performing a step of displaying a display area of the target image feature at a preset focal length based on the parameter variation value being greater than a preset value, including: the change value based on the color information is larger than a preset color threshold value; and/or the change value based on the shape information is greater than a preset shape threshold; and/or based on the change value of the size information being greater than a preset size threshold, performing a step of displaying the display area of the target image feature at a preset focal length.

In this embodiment, when the parameter change value between the target image feature and the first image feature needs to be determined, the determination may be performed according to the change value of the color information between the target image feature and the first image feature. When the color difference between the target image feature and the first image feature is greater than the preset color threshold, it indicates that the color of the target image feature is greatly changed compared with the color of the first image feature, and at this time, the display area of the target image feature may be displayed with the preset focal length.

In one possible embodiment, the parameter variation values include: a pixel change value; and performing a step of displaying a display area of the target image feature at a preset focal length based on the parameter variation value being greater than a preset value, including: and performing a step of displaying the display area of the target image feature at a preset focal length based on the pixel variation value being greater than the preset pixel value.

In this embodiment, when the parameter variation value between the target image feature and the first image feature needs to be determined, the determination may be performed according to the pixel variation value between the target image feature and the first image feature. And performing pixel-level difference calculation between the target image characteristic and the first image characteristic to obtain pixel differences at various positions between the target image characteristic and the first image characteristic, and performing zoom display on the area with the maximum pixel difference change. The area with the largest pixel difference value change can reflect the area with obvious surface change of the food material, so that a user can clearly see the size change process of the surface of the food material, and the video production effect is improved.

In one possible embodiment, the display area for displaying the target image feature at the preset focal length includes: magnifying a display area for displaying the characteristics of the target image by a preset zoom factor; and displaying the display area of the target image characteristic by using the preset focusing multiple.

In this embodiment, when the display area of the target image feature needs to be displayed in a zoom manner, the display area of the target image feature is displayed in an enlarged manner by a preset zoom factor, so that the display area of the target image feature is enlarged by the preset zoom factor, and the detail change process of the surface of the food material is also displayed in an enlarged manner. And then, focusing the display area of the target image characteristics by a preset focusing multiple, so that the image characteristics in the amplified display area can be clearly displayed, a user can clearly see the change process of the surface of the food material, and the video shooting effect can be improved.

In one possible embodiment, the display area for displaying the target image feature at the preset focal length includes: cutting the first image to obtain a display area for displaying the characteristics of the target image; the display area is enlarged.

In this embodiment, when the display area of the target image feature needs to be displayed in a zoom manner, the collected food material image is cut to obtain the display area of the target image feature, and then the display area of the target image feature is magnified, for example, by a preset multiple. The method is beneficial for users to clearly see the change process of the surface of the food material, and further beneficial for improving the video shooting effect.

In a possible embodiment, comparing at least two food material images collected within a preset interval duration includes: dividing the first image into at least two first sub-regions, and dividing the second image into at least two second sub-regions, one first sub-region corresponding to the position of one second sub-region; the images in the first and second sub-regions are compared.

In this embodiment, when comparing the first image and the second image, the first image and the second image are each divided into a plurality of sub-regions, and then the sub-regions in the first image and the second image are compared, respectively.

In a possible embodiment, after obtaining the target video, the method further includes: displaying a target video on the cooking appliance; and/or output the target video to the electronic device.

In this embodiment, the cooking appliance includes a display screen, and after obtaining the target image video, the display screen may display the target video, and the user may see the detail change of the food material during the cooking process.

As shown in fig. 2, in some embodiments of the present invention, a video camera 200 is provided for a cooking appliance including a cooking cavity.

The video camera 200 includes:

the acquisition module 210 is configured to acquire a first food material image and a second food material image in the cooking cavity, where the first food material image and the second food material image are food material images shot at different angles, and/or the first food material image and the second food material image are food material images shot under the condition of different focal lengths;

the shooting module 220 is configured to obtain a target video by shooting according to the first food material image and the second food material image.

In one possible embodiment, the cooking appliance further comprises a first camera assembly and a second camera assembly; the acquisition module is specifically configured to: the first camera shooting assembly is controlled to collect a first food material image in the cooking cavity, and the second camera shooting assembly is controlled to collect a second food material image in the cooking cavity.

In a possible embodiment, the cooking appliance further comprises a third camera assembly, wherein the third camera assembly is slidably connected to the cooking cavity or rotatably connected to the cooking cavity; the acquisition module is specifically configured to: the third camera shooting assembly periodically moves along a preset moving path and collects a first food material image and a second food material image in the cooking cavity, wherein the first food material image and the second food material image are food material images shot by the third camera shooting assembly at different positions; or the third camera shooting assembly periodically rotates along a preset rotation path and collects a first food material image and a second food material image in the cooking cavity, wherein the first food material image and the second food material image are food material images shot by the third camera shooting assembly relative to the cooking cavity at different angles.

In a possible embodiment, the acquisition module is specifically configured to: comparing at least two food material images collected within a preset interval duration, wherein the at least two food material images comprise a first image collected currently and a second image collected before the preset interval duration; taking the first image as a first food material image under the condition that the target image feature is determined to be included in the first image; and displaying the display area of the target image characteristic by using a preset focal length to obtain a second food material image, wherein the target image characteristic is a characteristic of difference between the first image and the second image.

And comparing the currently acquired food material images with food material images acquired before the preset interval duration every preset interval duration, and if the currently acquired food material images are changed on the images compared with the previously acquired images, amplifying the changed display areas. If the currently collected food material image is not changed in image compared with the previously collected image, the amplification processing is not needed, and the image collection is continued.

In a possible embodiment, the acquisition module is further configured to: determining a parameter variation value of a target image feature and a first image feature in a second image, wherein the target image feature corresponds to the position of the first image feature; and performing a step of displaying the display area of the target image feature at a preset focal length based on the parameter variation value being greater than the preset value.

In a possible embodiment, the acquisition module is further configured to: determining the maximum variation value of the at least two parameter variation values under the condition that the target image characteristics are at least two; determining a target image feature corresponding to the maximum variation value in the at least two target image features to obtain a second image feature under the condition that the maximum variation value is larger than a preset value; and displaying the second image characteristic at a preset focal length.

In one possible embodiment, the parameters include: at least one of color information, shape information, and size information; the acquisition module is further configured to: the change value based on the color information is larger than a preset color threshold value; and/or the change value based on the shape information is greater than a preset shape threshold; and/or based on the change value of the size information being greater than a preset size threshold, performing a step of displaying the display area of the target image feature at a preset focal length.

In this embodiment, when the parameter variation value between the target image feature and the first image feature needs to be determined, the determination may be performed according to the variation value of the color information between the target image feature and the first image feature. When the color difference between the target image feature and the first image feature is greater than the preset color threshold, it indicates that the color of the target image feature is greatly changed compared with the color of the first image feature, and at this time, the display area of the target image feature may be displayed with the preset focal length.

In one possible embodiment, the parameter variation values comprise: a pixel change value; the acquisition module is further configured to: and performing a step of displaying a display area of the target image feature at a preset focal length based on the parameter variation value being greater than a preset value, including: and performing a step of displaying the display area of the target image feature at a preset focal length based on the pixel variation value being greater than the preset pixel value.

In a possible embodiment, the acquisition module is further configured to: magnifying a display area for displaying the characteristics of the target image by a preset zoom factor; and displaying the display area of the target image characteristic by using the preset focusing multiple.

In a possible embodiment, the acquisition module is further configured to: cutting the first image to obtain a display area for displaying the characteristics of the target image; the display area is enlarged.

In a possible embodiment, the acquisition module is further configured to: dividing the first image into at least two first sub-regions, and dividing the second image into at least two second sub-regions, one first sub-region corresponding to the position of one second sub-region; the images in the first and second sub-regions are compared.

In one possible embodiment, the video camera further comprises: the display module is used for displaying the target video on the cooking utensil after the target video is obtained; and/or the output module is used for outputting the target video to the electronic equipment.

As shown in fig. 3, in an embodiment of the present invention, a video photographing apparatus 300 for a cooking appliance including a cooking cavity is provided.

The video camera 300 device includes: a controller 310 and a memory 320, wherein the memory 320 stores programs or instructions, and the controller 310 implements the steps of the method in any of the above possible embodiments when executing the programs or instructions in the memory 320.

In an embodiment of the invention, a readable storage medium is proposed, on which a program or instructions are stored, which when executed by a processor implement the steps of the method as in any of the possible embodiments described above.

In an embodiment of the present invention, there is provided a cooking appliance including: a video capture device as in any of the above possible embodiments; or a readable storage medium as in the above embodiments.

In the present invention, the term "plurality" means two or more unless explicitly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A video shooting method for a cooking appliance comprising a cooking cavity, characterized in that the method comprises:

acquiring a first food material image and a second food material image in the cooking cavity, wherein the first food material image and the second food material image are food material images shot at different angles, and/or the first food material image and the second food material image are food material images shot at different focal lengths;

and shooting to obtain a target video according to the first food material image and the second food material image.

2. The video shooting method of claim 1,

the cooking appliance further comprises a first camera assembly and a second camera assembly;

the collection first food material image and second food material image in the cooking cavity include:

the first camera shooting assembly is controlled to collect a first food material image in the cooking cavity, and the second camera shooting assembly is controlled to collect a second food material image in the cooking cavity.

3. The video shooting method of claim 1,

the cooking appliance further comprises a third camera assembly, and the third camera assembly is connected to the cooking cavity in a sliding mode or in a rotating mode;

the third camera shooting assembly periodically moves along a preset moving path and collects a first food material image and a second food material image in the cooking cavity, wherein the first food material image and the second food material image are food material images shot by the third camera shooting assembly at different positions; or

The third camera shooting assembly periodically rotates along a preset rotation path and collects a first food material image and a second food material image in the cooking cavity, wherein the first food material image and the second food material image are food material images shot by the third camera shooting assembly at different angles relative to the cooking cavity.

4. The video shooting method of claim 1,

comparing at least two food material images collected within a preset interval duration, wherein the at least two food material images comprise a first image collected currently and a second image collected before the preset interval duration;

taking the first image as a first food material image under the condition that the first image is determined to include target image features;

and displaying a display area of the target image characteristic at a preset focal length to obtain a second food material image, wherein the target image characteristic is a characteristic of difference between the first image and the second image.

5. The video shooting method of claim 4,

under the condition that the first image comprises the target image feature, before displaying the display area of the target image feature at a preset focal length, the method further comprises the following steps:

determining a parameter variation value of the target image feature and a first image feature in the second image, wherein the target image feature corresponds to a position of the first image feature;

and executing the step of displaying the display area of the target image characteristic at a preset focal length based on the condition that the parameter variation value is larger than a preset value.

6. The video shooting method of claim 5,

the step of performing a display area for displaying the target image feature at a preset focal length based on the parameter variation value being greater than a preset value includes:

determining the maximum variation value of at least two parameter variation values under the condition that the target image characteristics are at least two;

determining a target image feature corresponding to the maximum change value in at least two target image features to obtain a second image feature under the condition that the maximum change value is larger than a preset value;

and displaying the second image characteristic at a preset focal length.

7. The video shooting method of claim 5,

the parameters include: at least one of color information, shape information, and size information;

the variation value based on the color information is larger than a preset color threshold value; and/or

A change value based on the shape information is greater than a preset shape threshold; and/or

And executing the step of displaying the display area of the target image feature at a preset focal length based on the change value of the size information being greater than a preset size threshold.

8. The video shooting method of claim 5,

the parameter variation values include: a pixel change value;

and based on the pixel change value being larger than a preset pixel value, executing the step of displaying the display area of the target image characteristic with a preset focal length.

9. The video shooting method according to any one of claims 4 to 8,

the display area for displaying the target image features at a preset focal length comprises:

magnifying and displaying a display area of the target image characteristic by a preset zoom factor;

and displaying the display area of the target image characteristic by a preset focusing multiple.

10. The video shooting method according to any one of claims 4 to 8,

cutting the first image to obtain a display area for displaying the characteristics of the target image;

enlarging the display area.

11. The video shooting method according to any one of claims 4 to 8,

the comparing of at least two food material images collected within a preset interval duration comprises:

dividing the first image into at least two first sub-regions, and dividing the second image into at least two second sub-regions, one of the first sub-regions corresponding to a position of one of the second sub-regions;

comparing the images within the first and second sub-regions.

12. The video shooting method of claim 1,

after the target video is obtained, the method further comprises:

displaying the target video on the cooking appliance; and/or

And outputting the target video to the electronic equipment.

13. A video capture device for a cooking appliance, the cooking appliance including a cooking cavity, the device comprising:

the cooking system comprises a collecting module, a processing module and a control module, wherein the collecting module is used for collecting a first food material image and a second food material image in a cooking cavity, the first food material image and the second food material image are food material images shot at different angles, and/or the first food material image and the second food material image are food material images shot under the condition of different focal lengths;

and the shooting module is used for shooting according to the first food material image and the second food material image to obtain a target video.

14. A video capture device for a cooking appliance, the cooking appliance including a cooking cavity, the device comprising:

a controller and a memory, wherein the memory has stored therein a program or instructions, the controller implementing the steps of the method according to any one of claims 1 to 12 when executing the program or instructions in the memory.

15. A readable storage medium, on which a program or instructions are stored, which when executed by a processor, carry out the steps of the method according to any one of claims 1 to 12.

16. A cooking appliance, comprising:

the video camera of claim 13 or 14; or

The readable storage medium of claim 15.