CN112055247B - Video playing method, device, system and storage medium - Google Patents
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Abstract
The invention relates to a video playing method, a video playing device, a video playing system and a storage medium. The method comprises the following steps: acquiring a video image to be played; playing a video image to be played in a target area; the size of at least one dimension of the video image to be played is larger than the size of the dimension of the target area; when the video image to be played is played, the video image to be played displays image elements associated with the video main body of the video image to be played in the target area outside the target area. This scheme realizes the third dimension of a play screen display in the sense of seeing, under the condition that does not use 3D technique for the user can watch the visual third dimension, compares in the complicacy of bore hole 3D technique and the video limitation of direct broadcast, and this scheme has given the user more visual impact force when watching the video through littleer cost, thereby improves the competitiveness of video website.
Description
Technical Field
The present invention relates to the field of video playing technologies, and in particular, to a video playing method, apparatus, system, and storage medium.
Background
The video website refers to a network medium which enables internet users to smoothly publish, browse and share video works on line under the support of a perfect technical platform, and the scale of the video website is larger and larger as the demand of the internet users for videos is larger and larger.
The existing video playing method is to play the video content in the playing window, and because of the display mode of the video content, the user can only determine the key presented part in the video by the depth of field and the blurring of the image of the video when watching, when the video can not accurately express the content that the user wants to express, the feeling given to the user is very disordered, the user can not accurately understand the key that the video wants to express, and because of the display mode of the video, the user can only obtain the content in the video, but can not give more visual impact to the user.
Disclosure of Invention
In order to solve the problems in the prior art, at least one embodiment of the present invention provides a video playing method, apparatus, system and storage medium.
In a first aspect, an embodiment of the present invention provides a video playing method, where the playing method includes:
acquiring a video image to be played;
playing the video image to be played in a target area; the size of at least one size dimension of the video image to be played is larger than the size of the corresponding size dimension of the target area;
when the video image to be played is played, the video image to be played displays image elements associated with a video main body of the video image to be played in the target area outside the target area.
Based on the above technical solutions, the embodiments of the present invention may be further improved as follows.
With reference to the first aspect, in a first exemplary embodiment of the first aspect, the displaying, by the to-be-played video image outside the target area, an image element associated with a video subject of the to-be-played video image within the target area includes:
judging whether image elements corresponding to the video main body of the video image to be played in the target area exist in the part of the video image to be played outside the target area;
if so, the video image to be played only displays the image elements outside the target area; or if not, hiding the part of the video image to be played, which is positioned outside the target area.
With reference to the first aspect, in a second embodiment of the first aspect, the displaying, by the to-be-played video image outside the target area, an image element associated with a video subject of the to-be-played video image within the target area includes:
and filtering the video background of the video image to be played, which is positioned outside the target area, so that the video background of the corresponding video image to be played, which is positioned outside the target area, is transparent.
With reference to the second embodiment of the first aspect, in a third embodiment of the first aspect, the filtering the video background of the to-be-played video image, where the video background is located outside the target area, includes:
acquiring a mark of a video background aiming at the video image to be played;
and filtering the video background of the corresponding video image to be played, which is positioned outside the target area, according to the mark, so that the video background of the video image to be played, which is positioned outside the target area, becomes transparent.
With reference to the third embodiment of the first aspect, in a fourth embodiment of the first aspect, the video playing method further includes:
identifying a video background of the video image to be played;
setting the color of the video background of the video image to be played, which is positioned outside the target area, as a filtering color as a mark for the video image to be played; the color value of the filtering color is different from the color value of any pixel in the video image to be played;
the filtering the video background of the corresponding video image to be played, which is located outside the target area, according to the mark comprises:
and filtering the corresponding video image to be played according to the filtering color corresponding to the video image to be played, so that the video background of the video image to be played, which is positioned outside the target area, becomes transparent.
With reference to the fourth embodiment of the first aspect, in a fifth embodiment of the first aspect, the identifying a video background of the video image to be played includes:
acquiring at least two adjacent frames of video images to be played from any moment to form a comparison video image group;
comparing every two video images to be played in the comparison video image group to obtain an image coincidence proportion between corresponding first areas to be selected in each video image to be played; the first to-be-selected area is an area with a first preset shape obtained by dividing the video image to be played;
judging whether the coincidence proportion of all the images corresponding to the first to-be-selected area is larger than the preset coincidence proportion or not;
and if all the image coincidence proportions of the first to-be-selected area are larger than a preset coincidence proportion, the first to-be-selected area is the video background.
With reference to the fifth embodiment of the first aspect, in the sixth embodiment of the first aspect, the comparing the video images to be played in the comparison video image group two by two to obtain an image overlapping ratio between corresponding first areas to be selected in each video image to be played includes:
acquiring the coincidence area of a first to-be-selected area corresponding to two compared video images to be played;
and obtaining the image coincidence proportion between the first to-be-selected areas corresponding to the two video images to be played according to the coincidence area of the first to-be-selected areas and the area of the first to-be-selected areas.
With reference to the fourth embodiment of the first aspect, in a seventh embodiment of the first aspect, the identifying a video background of the video image to be played includes:
acquiring the definition average value of each second to-be-selected area in the video image to be played; the second to-be-selected area is an area with a second preset shape obtained by dividing the video image to be played;
judging whether the definition average value of each second candidate area is smaller than a preset threshold value or not;
and if the definition average value of the second candidate area is smaller than a preset threshold value, the second candidate area is the video background.
With reference to the fourth embodiment of the first aspect, in an eighth embodiment of the first aspect, the identifying a video background of the video image to be played includes:
acquiring a background mark added for an object in the video image to be played; the object is an area obtained by dividing according to the gray value change of the gray image of the video image to be played;
taking the object added with the background mark in the video image to be played as the video background;
taking the video image to be played with the background mark in any frame as a first video image to be played;
taking the video image to be played adjacent to the first video image to be played as a second video image to be played;
judging whether an object which is the same as the object added with the background mark in the first video image to be played exists in the second video image to be played;
if the second video image to be played has the same object as the object added with the background mark in the first video image to be played, adding the background mark to the corresponding object in the second video image to be played, and taking the object added with the background mark as the video background.
With reference to the first aspect or the first, second, third, fourth, fifth, sixth, seventh or eighth embodiment of the first aspect, in a ninth embodiment of the first aspect, before playing the video image to be played in the target area, the playing method further includes:
acquiring video playing parameters of the video image to be played;
judging whether the video image to be played has a corresponding display mark on the screen or not according to the video playing parameters;
if the video image to be played has the corresponding display mark, executing the step of playing the video image to be played in the target area;
and if the video image to be played does not have the corresponding display mark, directly playing the image to be played in a preset video playing frame of the user side.
In a second aspect, an embodiment of the present invention provides a video playing apparatus, where the playing apparatus includes:
the device comprises an acquisition unit, a display unit and a display unit, wherein the acquisition unit is used for acquiring a video image to be played;
the first processing unit is used for playing the video image to be played in a target area; the size of at least one size dimension of the video image to be played is larger than the size of the corresponding size dimension of the target area;
and the second processing unit is used for displaying image elements associated with the video main body of the video image to be played in the target area outside the target area when the video image to be played is played.
In a third aspect, an embodiment of the present invention provides a video playing system, including a processor, a communication interface, a memory, and a communication bus, where the processor and the communication interface complete communication between the memory and the processor through the communication bus;
a memory for storing a computer program;
a processor, configured to implement the video playing method according to any one of the first aspect when executing the program stored in the memory.
In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, where one or more programs are stored, and the one or more programs are executable by one or more processors to implement the video playing method according to any one of the first aspects.
Compared with the prior art, the technical scheme of the invention has the following advantages: according to the scheme, the part of the video image to be played, which is positioned outside the target area, is processed, so that the video image to be played is positioned outside the target area to display image elements associated with a video main body of the video image to be played in the target area; thereby realize the third dimension of a play screen display in the sense of seeing, under the condition that does not use 3D technique for the user can watch the video third dimension, compare in bore hole 3D technique's complicacy and the video limitation of direct broadcast, this scheme has given the user more visual impact force when watching the video through littleer cost, thereby improves the competitiveness of video website.
Drawings
Fig. 1 is a schematic flow chart of a video playing method according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a video playing method according to another embodiment of the present invention;
fig. 3 is a schematic flow chart of a video playing method according to another embodiment of the present invention;
fig. 4 is a schematic flow chart of a video playing method according to another embodiment of the present invention;
fig. 5 is a schematic flowchart of a method for filtering a video background of a video image to be played, which is located outside a target area according to another embodiment of the present invention;
fig. 6 is a third schematic flowchart of a video playing method according to another embodiment of the present invention;
fig. 7 is a flowchart illustrating a method for identifying a video background of a video image to be played according to another embodiment of the present invention;
fig. 8 is a flowchart illustrating a second method for identifying a video background of a video image to be played according to another embodiment of the present invention;
fig. 9 is a flowchart illustrating a method for identifying a video background of a video image to be played according to another embodiment of the present invention;
fig. 10 is a flowchart illustrating a method for identifying a video background of a video image to be played according to yet another embodiment of the present invention;
fig. 11 is a schematic structural diagram of a video playback device according to yet another embodiment of the present invention;
fig. 12 is a schematic structural diagram of a video playing system according to yet another embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
The client provided in the embodiments of the present invention to implement various embodiments of the present invention includes a network connection device, a memory 1130, a processor 1110, a communication interface 1120, and a communication bus 1140, and electronic components complete communication with each other through the communication bus 1140, where the client may be a mobile terminal such as a mobile phone, a tablet computer, a notebook computer, a palm computer, a Personal Digital Assistant (PDA), a Portable Media Player (PMP), a navigation device, a wearable device, an intelligent bracelet, a pedometer, and a fixed terminal such as a Digital TV, a desktop computer, and the like.
As shown in fig. 1, an embodiment of the present invention provides a video playing method. Referring to fig. 1, the playing method includes the following steps:
and S11, acquiring the video image to be played.
In the present embodiment, Video (Video) generally refers to various techniques for capturing, recording, processing, storing, transmitting and reproducing a series of still images as electrical signals. When the continuous image change exceeds more than 24 frames (frames) of pictures per second, human eyes cannot distinguish a single static picture according to the principle of persistence of vision; a smooth continuous visual effect appears, such that the continuous picture is called a video. In this step, the video image to be played may be a frame image extracted from the video to be played, or may be a plurality of frame images created by the user.
S12, playing the video image to be played in the target area; the size of at least one size dimension of the video image to be played is larger than the size of the corresponding size dimension of the target area.
In this embodiment, if the size of each dimension of the video image to be played is smaller than the size of the corresponding dimension of the target area, the size of at least one dimension of the video image to be played can be integrally scaled so that the size of at least one dimension of the video image to be played is larger than the size of the corresponding dimension of the target area. In order to better realize the screen effect, the user can be reminded to set the size smaller than the video playing frame, or the maximum preset size set by the user is set to be the size of the video playing frame.
In this embodiment, the target area may be determined by obtaining a size parameter set by a user, for example, setting a target area with a fixed size; the size of the target area can be obtained according to the preset proportion and the size of the page by obtaining the size of the page of the client or the webpage currently playing the video image to be played.
And S13, when the video image to be played is played, the video image to be played displays image elements associated with the video main body of the video image to be played in the target area outside the target area.
In this embodiment, since the video image mainly includes the video subject and the video background, the video subject may be a person, a scene, an article, an animal, and the like currently displayed in the video, and the image element associated with the video subject may be a part of the video subject displayed outside the target area, or may be an image in linkage or interaction with the video subject. For example, a scene of a marriage seeking from a man to a woman is being played in the video to be played, and image elements such as a church and the like associated with the scene can be displayed outside the video playing frame. For another example, although the advertisement of mineral water is being played in the video to be played, since the size of the video image is larger than that of the video playing frame, the mineral water in the video being played cannot be completely displayed, and at this time, the remaining portion of the mineral water outside the video playing frame is displayed.
In this embodiment, the image elements displayed outside the target area and associated with the video subject of the video image to be played in the target area may be obtained by deleting the video background of the video image to be played outside the target area, or the image elements associated with the video subject outside the target area and within the target area may be marked in advance, and the images other than the marked image elements are filtered in real time according to the marks during playing.
In the embodiment, the real-time processing of the part of the video image to be played, which is outside the target area, can be realized by a Shader of Opengles, wherein OpenGL is an Open Graphics Library, an Open Graphics Library or an Open Graphics Library is a Graphics Library for rendering 2D and 3D, Opengles is customized by OpenGL cutting and is designed for a mobile phone, an embedded device and the like, and the Shader is a program executed on a GPU and written by using OpenGL ES SL language; the GPU will automatically process each frame according to the shader.
In the embodiment, the video image to be played is processed by the part of the video image to be played, which is outside the target area, so that the video image to be played is outside the target area to display the image elements associated with the video main body of the video image to be played in the target area; thereby realize the third dimension of a play screen display in the impression, under the condition that does not use the 3D technique for the user can watch more strong third dimension, compare in the complicated of bore hole 3D technique and the video limitation of direct broadcast, this scheme has given the user more visual impact force when watching the video through littleer cost, thereby improves video website's competitiveness.
As shown in fig. 2, in a specific embodiment, an embodiment of the present invention further provides a video playing method, before playing a video image to be played in a target area, the playing method further includes the following steps:
and S21, acquiring video playing parameters of the video image to be played.
In this embodiment, the video playing parameter may be a display mark that is added to the video image to be played in advance by the user, for example, a common playing mark is added to the video played in a common manner, a screen display mark is added to the video that needs to realize the screen display effect in the manner described above, and a video playing parameter may be obtained by setting a size parameter of the video image to be played.
And S22, judging whether the video image to be played has a corresponding display mark or not according to the video playing parameters.
S23a, if the video image to be played has the corresponding display mark, executing the step of playing the video image to be played in the target area.
And S23b, if the video image to be played does not have the corresponding display mark, directly playing the image to be played in the preset video playing frame of the user terminal.
In this embodiment, when there is a corresponding off-screen display mark in the video image to be played, the steps S11 to S13 are performed on the corresponding video image to be played, when there is no corresponding off-screen display mark in the video image to be played, the video image to be played is displayed in a normal manner, switching of the playing manner of the video image to be played is quickly completed by setting the video playing parameters of the video image, specifically, whether the off-screen display mark is added or not can be updated in real time according to the performance of the user side, and the video image to be played is reduced or not processed for the user side with poor performance, so as to reduce the load on the user side.
As shown in fig. 3, an embodiment of the present invention provides a video playing method. Referring to fig. 3, the video playing method includes the steps of:
and S31, acquiring the video image to be played.
Regarding step S31, refer to the description in step S11 for details, which are not repeated herein.
S32, playing the video image to be played in the target area; the size of at least one size dimension of the video image to be played is larger than the size of the corresponding size dimension of the target area.
Regarding step S32, refer to the description in step S12 for details, which are not repeated herein.
And S33, judging whether image elements corresponding to the video main body of the video image to be played in the target area exist in the part of the video image to be played in the target area.
In this embodiment, as described in the embodiment of fig. 1 for step S13, before processing the portion of the video image to be played, which is located outside the target area, it is determined whether there is an image element associated with the video subject in the target area in the video image to be played outside the target area, that is, whether there is a portion of the video subject outside the target area, or whether there is an image linked with the video subject outside the target area.
And S34a, if yes, only displaying image elements outside the target area of the video image to be played.
In this embodiment, if it is determined that the video image to be played has the image element associated with the video main body in the target area outside the target area, the scheme described in step S13 is executed to process the portion of the video image to be played outside the target area, which is not described again in this embodiment.
S34b, if not, hiding the part of the video image to be played, which is positioned outside the target area.
In this embodiment, if it is determined that there is no image element associated with the video main body in the target region in the portion of the video image to be played, which is outside the target region, may be hidden, specifically, the portion of the video image to be played, which is outside the target region, may be deleted, or the portion of the video image to be played, which is outside the target region, may be hidden in a transparent manner.
In this embodiment, by determining whether an image element associated with a video subject of a video image to be played, which is located outside a target area, exists in a portion of the video image to be played, which is located outside the target area, different processing is directly performed on the portion of the video image to be played, which is located outside the target area, under different conditions, so that the image processing efficiency is improved.
As shown in fig. 4, an embodiment of the present invention provides a video playing method. Referring to fig. 4, the video playing method includes the following steps:
and S41, acquiring the video image to be played.
Regarding step S41, refer to the description in step S11 for details, which are not repeated herein.
S42, playing the video image to be played in the target area; the size of at least one size dimension of the video image to be played is larger than the size of the corresponding size dimension of the target area.
Regarding step S42, refer to the description in step S12 for details, which are not repeated herein.
And S43, filtering the video background of the video image to be played, which is located outside the target area, so that the video background of the corresponding video image to be played, which is located outside the target area, is transparent.
In this embodiment, the pixels of the video image to be played, which are located outside the target area in the video background, may be changed into transparent pixels, so that the video background of the video image to be played, which is located outside the target area, is transparent; the video background of the video image to be played, which is positioned outside the target area, can be deleted, so that the video background of the video image to be played, which is positioned outside the target area, is transparent.
Specifically, as shown in fig. 5, an embodiment of the present invention provides a method for filtering a video background of a video image to be played, where the video background is located outside a target area, including the following steps:
and S51, acquiring a mark of a video background of the video image to be played.
In this embodiment, in the present embodiment, a mark for a video background of a video image to be played is directly obtained, where the mark may be added to the video image to be played in advance, for example, a corresponding mark may be added to the video background by identifying the video background of the video image to be played, where a background identification algorithm includes algorithms such as a background subtraction method, a frame subtraction method, and an optical flow field method, and after a video main body is obtained by identification, a video main body mark is added to the image, and a video background may be determined according to parameters such as a position and a definition of each object in the frame image to be processed, and after the video background is determined, a mark is added to the video background.
And S52, filtering the video background of the corresponding video image to be played, which is positioned outside the target area, according to the mark, so that the video background of the video image to be played, which is positioned outside the target area, becomes transparent.
In this embodiment, after determining, according to the mark, the video background of the video image to be played, which is located outside the target area, the video background is filtered through the description in the step S43, which is not described again here.
In this embodiment, the video background in the video image to be played is directly determined by obtaining the mark of the obtained video background, so as to realize rapid processing of the video background of the video image to be played, which is located outside the target area.
As shown in fig. 6, an embodiment of the present invention provides a video playing method, which is different from the video playing methods shown in fig. 4 and fig. 5 in that before playing a video image to be played in a target area, the video playing method further includes the following steps:
and S61, identifying the video background of the video image to be played.
In this embodiment, a video background may exist in a video image to be played, for example, videos such as video advertisements, drama videos, movie videos, and the like may have a portion to be presented as a video main body, and may also have a portion to be used as a background, and the video background may not give more information in a playing process.
S62, setting the color of the video background of the video image to be played, which is positioned outside the target area, as a filtering color as a mark for the video image to be played; the color value of the filtering color is different from the color value of any pixel in the video image to be played.
In this embodiment, after determining the video background of the video image to be played, the color of the video background of the video image to be played, which is located outside the target area, is changed to be set as a filtering color, and the filtering color is used as a mark for the video image to be played, where a color value of the filtering color is different from a color value of any pixel in the frame image to be processed, so as to facilitate processing for the video background.
In this embodiment, the video background of the video image to be played is directly identified, and after the video background of the video image to be played is identified, the color of the video background of the video image to be played, which is located outside the target area, is changed, so that the color of the video background is different from the color value of any pixel in the video image to be played, and rapid filtering during playing is facilitated.
With reference to the solution of this embodiment, as in step S44 in the embodiment shown in fig. 4, the filtering the video background of the corresponding to-be-played video image located outside the target area according to the mark includes: and filtering the corresponding video image to be played according to the filtering color corresponding to the video image to be played, so that the video background of the video image to be played, which is positioned outside the target area, becomes transparent.
In this embodiment, by processing the video image to be played, the color of the video background of the video image to be played, which is located outside the target area, is set as a filtering color, where the filtering color corresponds to a color that does not exist in the video image to be played, so as to conveniently complete the deletion of the portion to be deleted in the video image to be played through the color, for example, by setting an alpha channel of a picture pixel point, the corresponding pixel point becomes transparent or directly deducts the portion corresponding to the filtering color through a matting method. Alpha Channel (Alpha Channel) refers to the transparency and translucency of a picture. For example: a bitmap stored using 16 bits per pixel may represent, for each pixel in the graph, 5 bits for red, 5 bits for green, 5 bits for blue, and the last bit is alpha. In this case it either indicates transparency or not, because the alpha bit has only the possibility of two different representations, 0 or 1. As another example, a bitmap stored using 32 bits, each 8 bits representing a red, green, blue, and alpha channel. In this case, neither light can represent transparent or opaque, and the alpha channel can also represent 256 levels of translucency, since there are 8 bits of the alpha channel that can have 256 different data representation possibilities.
As shown in fig. 7, in combination with the video playing method shown in fig. 6, an embodiment of the present invention provides a method for identifying a video background of a video image to be played. Referring to fig. 7, the identification method includes the steps of:
and S71, acquiring at least two adjacent video images to be played from any moment, and forming a comparison video image group.
In this embodiment, since the video is formed by continuously playing a plurality of frames of images, in this scheme, at least two adjacent frames of video images to be played are obtained, that is, the video images to be continuously played of the continuously played video images at any time are obtained.
S72, comparing every two video images to be played in the comparison video image group to obtain the image coincidence proportion between the corresponding first to-be-selected areas in each video image to be played; the first candidate area is an area with a first preset shape obtained by dividing a video image to be played.
In this embodiment, an image coincidence ratio between two regions to be selected in any two video images to be played in the video image group is obtained through comparison, for example, the video images to be played are equally divided into 4 rectangles, four rectangles are all the first regions to be selected, and the corresponding first regions to be selected are two rectangles located at the same position in the video images to be played.
And S73, judging whether the coincidence proportion of all the images corresponding to the first to-be-selected area is larger than the preset coincidence proportion.
In this embodiment, each video image to be played is divided into the first candidate region, and any two video images to be played have the corresponding first candidate regions, so that after the first candidate region of each video image to be played is calculated between every two video images, a plurality of groups of corresponding image overlapping proportions exist.
And S74, if the coincidence proportion of all the images of the first candidate area is larger than the preset coincidence proportion, the first candidate area is a video background.
If the image overlapping proportion between certain first candidate areas in different video images to be played is larger than the preset overlapping proportion, the first candidate areas are used as video backgrounds when the first candidate areas are not changed in a series of video images to be played.
As shown in fig. 8, in this embodiment, S72 compares every two video images to be played in the comparison video image group to obtain an image overlapping ratio between corresponding first areas to be selected in each video image to be played, including the following steps:
and S81, acquiring the overlapping area of the first to-be-selected areas corresponding to the two video images to be played.
In this embodiment, obtaining the overlapping area of the first candidate region corresponding to the two video images to be played may be implemented by using an existing method, for example, converting pixels of pixels in the video images to be played into a matrix, obtaining the overlapping area of the first candidate region by comparing elements corresponding to the matrix, or determining the overlapping area according to the similarity after obtaining the similarity of the two candidate regions by using a picture similarity detection algorithm, which is not particularly limited in this embodiment.
And S82, obtaining the image overlapping proportion between the first to-be-selected areas corresponding to the two video images to be played according to the overlapping area of the first to-be-selected area and the area of the first to-be-selected area.
In this embodiment, the overlapping area between the first areas to be selected of the two pictures is obtained, and the image overlapping proportion between the first areas to be selected is obtained according to the overlapping area between the first areas to be selected and the area of the first areas to be selected.
As shown in fig. 9, in combination with the video playing method shown in fig. 6, an embodiment of the present invention provides a method for identifying a video background of a video image to be played. Referring to fig. 9, the identification method includes the steps of:
s91, acquiring the definition average value of each second to-be-selected area in the video image to be played; the second candidate area is an area with a second preset shape obtained by dividing the video image to be played.
In this embodiment, the dividing manner of the second candidate region may be the same as the dividing method of the first candidate region, so as to obtain a first-pass shape and an area region.
In this embodiment, the definition of the video image to be played refers to the definition of the image that is macroscopically seen by human eyes, and is the subjective feeling of people on the final image caused by the comprehensive result of the objective performance of the system and the equipment. Although the definition is subjective, unlike subjective listening evaluations, which cannot be measured by an objective standard, the definition is quantitatively measurable, i.e., measured by the thickness of the black and white lines, and has a standard test method and test chart with a specific unit of measurement data, i.e., the tv line TVL.
In this embodiment, when the size of the second candidate region is large, the average value of the sharpness of each sub-region in the second candidate region may be calculated to be used as the sharpness of the second candidate region, and when the size of the second candidate region is small, the sharpness value of the second candidate region may be directly calculated to be used as the sharpness average value to represent the sharpness of the second candidate region.
And S92, judging whether the definition average value of each second candidate area is smaller than a preset threshold value.
And S93, if the definition average value of the second candidate area is smaller than the preset threshold value, the second candidate area is a video background.
In this embodiment, it is determined whether the average value of the sharpness of each second candidate region in the video image to be played is smaller than a preset threshold, and because the background portion in the video image to be played is blurred, the sharpness of the background portion is weaker than the sharpness of the main body portion, or the sharpness of the whole video image to be played is weaker than the sharpness of the whole video image to be played, and the video achieves a planar depth-of-field effect in this way, so that in this scheme, whether the second candidate region is a video background can be determined according to the average value of the sharpness of the second candidate region.
As shown in fig. 10, in combination with the video playing method shown in fig. 6, an embodiment of the present invention provides a method for identifying a video background of a video image to be played. Referring to fig. 10, the identification method includes the steps of:
s101, acquiring a background mark added to an object of any frame of video image to be played in the video image to be played; the object is an area obtained by dividing according to the gray value change of a gray scale image of a video image to be played.
In this embodiment, the background mark added to the object of any frame of the video image to be played in the video image to be played may be added by an adding control instruction fed back from the client, or may be automatically added to the video background on the picture after the video background of the picture is automatically identified.
And S102, taking the object added with the background mark in the video image to be played as a video background.
In the present embodiment, the object to which the background mark is added is taken as the video background.
S103, taking the video image to be played with the background mark in any frame as a first video image to be played.
And S104, taking the video image to be played adjacent to the first video image to be played as a second video image to be played.
S105, judging whether the second video image to be played has the same object as the object added with the background mark in the first video image to be played.
In this embodiment, a video image to be played with a background mark is taken as a first video image to be played, a video image to be played adjacent to the first video image to be played is taken as a second video image to be played, and whether an object identical to the object added with the background mark in the first video image to be played exists in the second video image to be played is determined.
In this embodiment, whether there is a consistent object in the second video image to be played can be determined by comparing the object added with the background mark in the first video image to be played with the second video image to be played, and the comparison method can adopt an image similarity detection algorithm for detection.
And S106, if the second video image to be played has the same object as the object added with the background mark in the first video image to be played, adding the background mark to the corresponding object in the second video image to be played, and taking the object added with the background mark as the video background.
In this embodiment, if an object identical to the object added with the background mark in the first to-be-played video image exists in the second to-be-played video image, the background mark is added to the corresponding object in the second to-be-played video image, and the object added with the background mark is used as the video background, and since a new background mark is added to the object in the second to-be-played video image, at this time, the second to-be-played video image will be subjected to S103-106 to complete the processing of each object in the continuous to-be-played video image.
Specifically, in this embodiment, in steps S101 and S102, a background mark is added to the object in the video image to be played, and similarly, a video body mark may also be added to the object in the video image to be played, and similar to the above steps, by comparing the similarity between the object in the video image to be played and the object to which the video body mark is added, the video body in the video image to be played is quickly determined.
As shown in fig. 11, an embodiment of the present invention provides a video playing apparatus, where the playing apparatus includes: an acquisition unit 11, a first processing unit 12 and a second processing unit 13.
In this embodiment, the acquiring unit 11 is configured to acquire a video image to be played.
In this embodiment, the first processing unit 12 is configured to play a video image to be played in a target area; the size of at least one size dimension of the video image to be played is larger than the size of the corresponding size dimension of the target area.
In this embodiment, the second processing unit 13 is configured to, when playing the video image to be played, display, outside the target area, an image element associated with a video subject of the video image to be played in the target area.
In this embodiment, the second processing unit 13 is specifically configured to determine whether an image element corresponding to a video main body of the video image to be played, which is located in the target area, exists in a portion of the video image to be played, which is located outside the target area; if so, only displaying image elements outside the target area by the video image to be played; or if not, hiding the part of the video image to be played, which is positioned outside the target area.
In this embodiment, the second processing unit 13 is specifically configured to filter the video background of the video image to be played, which is located outside the target area, so that the video background of the corresponding video image to be played, which is located outside the target area, is transparent.
In this embodiment, the second processing unit 13 is specifically configured to obtain a mark of a video background for a video image to be played; and filtering the video background of the corresponding video image to be played, which is positioned outside the target area, according to the mark, so that the video background of the video image to be played, which is positioned outside the target area, becomes transparent.
In this embodiment, the video playback apparatus further includes: the third processing unit is used for identifying the video background of the video image to be played; setting the color of a video background of a video image to be played, which is positioned outside a target area, as a filtering color as a mark for the video image to be played; the color value of the filtering color is different from the color value of any pixel in the video image to be played.
In this embodiment, the second processing unit 13 is specifically configured to filter the corresponding video image to be played according to the filtering color corresponding to the video image to be played, so that the video background of the video image to be played, which is located outside the target area, becomes transparent.
In this embodiment, the third processing unit is specifically configured to acquire at least two adjacent frames of video images to be played from any time, and form a comparison video image group; comparing every two video images to be played in the comparison video image group to obtain the image coincidence proportion between corresponding first areas to be selected in each video image to be played; judging whether the coincidence proportion of all the images corresponding to the first to-be-selected area is larger than the preset coincidence proportion or not; if all the image coincidence proportions of the first to-be-selected area are larger than the preset coincidence proportion, the first to-be-selected area is a video background; the first candidate area is an area with a first preset shape obtained by dividing a video image to be played.
In this embodiment, the third processing unit is specifically configured to obtain a coincidence area of the first to-be-selected regions corresponding to the two to-be-played video images for comparison; and obtaining the image coincidence proportion between the first to-be-selected areas corresponding to the two video images to be played according to the coincidence area of the first to-be-selected areas and the area of the first to-be-selected areas.
In this embodiment, the third processing unit is specifically configured to obtain a definition average value of each second candidate region in the video image to be played; judging whether the definition average value of each second candidate area is smaller than a preset threshold value or not; if the definition average value of the second candidate area is smaller than the preset threshold value, the second candidate area is a video background; the second candidate area is an area with a second preset shape obtained by dividing the video image to be played.
In this embodiment, the third processing unit is specifically configured to acquire a background mark added to an object in a video image to be played; the object is an area obtained by dividing according to the gray value change of a gray scale image of a video image to be played; taking an object added with a background mark in a video image to be played as a video background; taking a video image to be played with a background mark in any frame as a first video image to be played; taking the video image to be played adjacent to the first video image to be played as a second video image to be played; judging whether an object which is the same as the object added with the background mark in the first video image to be played exists in the second video image to be played; and if the second video image to be played has the same object as the object added with the background mark in the first video image to be played, adding the background mark to the corresponding object in the second video image to be played, and taking the object added with the background mark as the video background.
In this embodiment, the video playback apparatus further includes: the fourth processing unit is used for acquiring video playing parameters of the video image to be played; judging whether a video image to be played has a corresponding display mark on the screen or not according to the video playing parameters; if the video image to be played has the corresponding display mark, executing the step of playing the video image to be played in the target area; and if the video image to be played does not have the corresponding screen-out display mark, directly playing the image to be played in a preset video playing frame of the user side.
As shown in fig. 12, an embodiment of the present invention provides a video playing system with an off-screen display, which includes a processor 1110, a communication interface 1120, a memory 1130, and a communication bus 1140, where the processor 1110, the communication interface 1120, and the memory 1130 complete communication with each other through the communication bus 1140;
a memory 1130 for storing computer programs;
the processor 1110, when executing the program stored in the memory 1130, implements the following video playback method:
acquiring a video image to be played;
playing a video image to be played in a target area; the size of at least one size dimension of the video image to be played is larger than that of the corresponding size dimension of the target area;
when the video image to be played is played, the video image to be played displays image elements associated with the video main body of the video image to be played in the target area outside the target area.
In the electronic device provided in the embodiment of the present invention, the processor 1110 implements processing on the portion of the video image to be played, which is located outside the target area, by executing the program stored in the memory 1130, so that the video image to be played, which is located outside the target area, displays the image element associated with the video body of the video image to be played, which is located inside the target area; thereby realize the third dimension of a play screen display in the sense of seeing, under the condition that does not use 3D technique for the user can watch the video third dimension, compare in bore hole 3D technique's complicacy and the video limitation of direct broadcast, this scheme has given the user more visual impact force when watching the video through littleer cost, thereby improves the competitiveness of video website.
The communication bus 1140 mentioned in the above electronic device may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The communication bus 1140 may be divided into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown, but this does not mean that there is only one bus or one type of bus.
The communication interface 1120 is used for communication between the electronic device and other devices.
The memory 1130 may include a Random Access Memory (RAM), and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory. Optionally, the memory 1130 may also be at least one memory device located remotely from the processor 1110.
The processor 1110 may be a general-purpose processor, and includes a Central Processing Unit (CPU), a Network Processor (NP), and the like; the integrated circuit may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, or discrete hardware components.
An embodiment of the present invention provides a computer-readable storage medium, where one or more programs are stored in the computer-readable storage medium, and the one or more programs are executable by one or more processors to implement the video playing method in any of the above embodiments.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. The procedures or functions according to the embodiments of the invention are brought about in whole or in part when the computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wirelessly (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid state disk (ssd)), among others.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (12)
1. A video playing method, wherein the playing method comprises:
acquiring a video image to be played;
playing the video image to be played in a target area; the size of at least one size dimension of the video image to be played is larger than the size of the corresponding size dimension of the target area;
when the video image to be played is played, the video image to be played displays image elements associated with a video main body of the video image to be played in the target area outside the target area;
wherein the to-be-played video image displays, outside the target area, image elements associated with a video subject of the to-be-played video image within the target area, including:
judging whether image elements corresponding to the video main body of the video image to be played in the target area exist in the part of the video image to be played outside the target area;
if so, the video image to be played only displays the image elements outside the target area; or if not, hiding the part of the video image to be played, which is positioned outside the target area.
2. The video playing method according to claim 1, wherein the video image to be played displays, outside the target area, image elements associated with a video subject of the video image to be played within the target area, including:
and filtering the video background of the video image to be played, which is positioned outside the target area, so that the video background of the corresponding video image to be played, which is positioned outside the target area, is transparent.
3. The video playing method according to claim 2, wherein the filtering the video background of the video image to be played, which is located outside the target area, comprises:
acquiring a mark of a video background aiming at the video image to be played;
and filtering the video background of the corresponding video image to be played, which is positioned outside the target area, according to the mark, so that the video background of the video image to be played, which is positioned outside the target area, becomes transparent.
4. The video playback method according to claim 3, wherein the video playback method further comprises:
identifying a video background of the video image to be played;
setting the color of the video background of the video image to be played, which is positioned outside the target area, as a filtering color as a mark for the video image to be played; the color value of the filtering color is different from the color value of any pixel in the video image to be played;
the filtering the video background of the corresponding video image to be played, which is located outside the target area, according to the mark comprises the following steps:
and filtering the corresponding video image to be played according to the filtering color corresponding to the video image to be played, so that the video background of the video image to be played, which is positioned outside the target area, becomes transparent.
5. The video playing method according to claim 4, wherein the identifying the video background of the video image to be played comprises:
acquiring at least two adjacent frames of video images to be played from any moment to form a comparison video image group;
comparing every two video images to be played in the comparison video image group to obtain an image coincidence proportion between corresponding first areas to be selected in each video image to be played; the first to-be-selected area is an area which is obtained by dividing the video image to be played and has a first preset shape;
judging whether the coincidence proportion of all the images corresponding to the first to-be-selected area is larger than the preset coincidence proportion or not;
and if all the image coincidence proportions of the first to-be-selected area are larger than a preset coincidence proportion, the first to-be-selected area is the video background.
6. The video playing method according to claim 5, wherein the comparing the video images to be played in the comparison video image group to obtain the image overlapping ratio between the corresponding first areas to be selected in each of the video images to be played comprises:
acquiring the overlapping area of a first to-be-selected area corresponding to two video images to be played;
and obtaining the image coincidence proportion between the first to-be-selected areas corresponding to the two video images to be played according to the coincidence area of the first to-be-selected areas and the area of the first to-be-selected areas.
7. The video playing method according to claim 4, wherein the identifying a video background of the video image to be played comprises:
acquiring the definition average value of each second to-be-selected area in the video image to be played; the second to-be-selected area is an area with a second preset shape obtained by dividing the video image to be played;
judging whether the definition average value of each second candidate area is smaller than a preset threshold value or not;
and if the definition average value of the second candidate area is smaller than a preset threshold value, the second candidate area is the video background.
8. The video playing method according to claim 4, wherein the identifying a video background of the video image to be played comprises:
acquiring a background mark added for an object in the video image to be played; the object is an area obtained by dividing according to the gray value change of the gray image of the video image to be played;
taking the object added with the background mark in the video image to be played as the video background;
taking the video image to be played with the background mark in any frame as a first video image to be played;
taking the video image to be played adjacent to the first video image to be played as a second video image to be played;
judging whether an object which is the same as the object added with the background mark in the first video image to be played exists in the second video image to be played;
if the second video image to be played has the same object as the object added with the background mark in the first video image to be played, adding the background mark to the corresponding object in the second video image to be played, and taking the object added with the background mark as the video background.
9. The video playing method according to any one of claims 1 to 8, wherein before playing the video image to be played in the target area, the playing method further comprises:
acquiring video playing parameters of the video image to be played;
judging whether the video image to be played has a corresponding display mark on the screen or not according to the video playing parameters;
if the video image to be played has the corresponding display mark, executing the step of playing the video image to be played in the target area;
and if the video image to be played does not have the corresponding display mark, directly playing the image to be played in a preset video playing frame of the user side.
10. A video playback apparatus, characterized in that the playback apparatus comprises:
the device comprises an acquisition unit, a display unit and a display unit, wherein the acquisition unit is used for acquiring a video image to be played;
the first processing unit is used for playing the video image to be played in a target area; the size of at least one size dimension of the video image to be played is larger than the size of the corresponding size dimension of the target area;
the second processing unit is used for displaying image elements associated with a video main body of the video image to be played in the target area outside the target area when the video image to be played is played; wherein the to-be-played video image displays, outside the target area, image elements associated with a video subject of the to-be-played video image within the target area, including: judging whether image elements corresponding to the video main body of the video image to be played in the target area exist in the part of the video image to be played outside the target area; if so, the video image to be played only displays the image elements outside the target area; or if not, hiding the part of the video image to be played, which is positioned outside the target area.
11. A video playing system is characterized by comprising a processor, a communication interface, a memory and a communication bus, wherein the processor and the communication interface are used for completing mutual communication by the memory through the communication bus;
a memory for storing a computer program;
a processor for implementing the video playback method according to any one of claims 1 to 9 when executing a program stored in the memory.
12. A computer-readable storage medium storing one or more programs, the one or more programs being executable by one or more processors to implement the video playback method of any one of claims 1-9.
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