CN105357471B - Video playing method and device - Google Patents
Video playing method and device Download PDFInfo
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- CN105357471B CN105357471B CN201510658250.9A CN201510658250A CN105357471B CN 105357471 B CN105357471 B CN 105357471B CN 201510658250 A CN201510658250 A CN 201510658250A CN 105357471 B CN105357471 B CN 105357471B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
- G06F3/1446—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display display composed of modules, e.g. video walls
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Abstract
The invention discloses a video playing method and a video playing device, wherein the method comprises the following steps: determining the number and/or the motion degree of the target objects in the video pictures transmitted by each video channel; determining a group to which a preview window for playing a video picture transmitted by the video channel belongs according to the number and/or the motion degree of the target objects; and playing the video pictures transmitted by the video channel in the preview window belonging to the group. By adopting the method and the device, the information content transmitted by the video can be determined according to the number and/or motion degree rules, the attention degree required to be given by the user can be determined according to the content, different attention degrees are given to different groups of preview windows, and thus, when the preview windows are played, the user can give corresponding attention and processing modes, which undoubtedly reduces the information processing difficulty and load of the user, so that the user can not only see but also see accurately.
Description
Technical Field
The present invention relates to the field of image processing technologies, and in particular, to a video playing method and apparatus.
Background
The current monitoring devices (e.g., DVR (Digital Video Recorder), NVR (Network Video Recorder), etc.) generally support a number of divided window modes of 4, 9, 16, 32, etc., each divided window has the same size, and a certain corresponding Video channel is displayed in an area of each window, if the number of pictures is greater than or equal to the number of Video channels, all the Video channels are sequentially displayed according to the channels, and if the number of pictures is less than the number of Video channels, some channels are manually selected for display, or automatically displayed in a rotating manner.
The current preview mode of monitoring devices (such as DVR, NVR, etc.) solves the requirement of 'seeing' application, that is, all video channels can be seen at any time, or only the video channel which is wanted to be seen is selected when needed.
The defects of the prior art are as follows: the existing video playing and previewing mode can only play video pictures transmitted by a video channel, and a user can only passively receive playing contents. The disadvantage means that although the user can "see" the information conveyed by the videos, the information seen by the user needs to be processed again by the user, which increases the difficulty and load of information processing for the user, for example, the user needs to pay attention to the playing content of each video preview window all the time to not miss useful information, and obviously, this way causes a great processing burden for the monitoring user in the monitoring system, especially in the monitoring system with numerous monitoring video channels for transmission.
Disclosure of Invention
The invention provides a video playing method and a video playing device, which are used for solving the problems that the existing video playing preview mode can only play video pictures transmitted by a video channel, and a user can only passively receive playing contents.
The embodiment of the invention provides a video playing method, which comprises the following steps:
determining the number and/or the motion degree of the target objects in the video pictures transmitted by each video channel;
determining a group to which a preview window for playing a video picture transmitted by the video channel belongs according to the number and/or the motion degree of the target objects;
and playing the video pictures transmitted by the video channel in the preview window belonging to the group.
Preferably, the group to which the preview window for playing the video image transmitted by the video channel belongs is determined according to the number and/or the degree of motion of the target object, and after the priority to which the video image belongs is determined according to the number and/or the degree of motion of the target object, the group to which the preview window for playing the video image transmitted by the video channel belongs is determined according to the priority and the priority of each group of video windows.
Preferably, the group to which the preview window for playing the video frame transmitted by the video channel belongs is determined according to the number and/or the motion degree of the target objects, and the method further includes:
determining a group to which a preview window for playing a video picture transmitted by the video channel belongs according to the number and/or the motion degree of the target objects according to a set period;
or when the number and/or the motion degree of the target objects are changed, determining the group to which the preview window for playing the video picture transmitted by the video channel belongs according to the changed number and/or the changed motion degree of the target objects.
Preferably, the group to which the preview window for playing the video frame transmitted by the video channel belongs is determined according to the number and/or the degree of motion of the target objects according to the set period, and the method further includes:
and determining the group to which the preview window for playing the video picture transmitted by the video channel belongs according to the number and/or the motion degree of the target objects in the set period, wherein the group is determined according to the total number and/or the motion degree of the target objects in the period.
Preferably, the group to which the preview window belongs is divided according to the video preview window size and/or the number of video pictures.
The embodiment of the invention also provides a video playing device, which comprises:
the determining module is used for determining the number and/or the motion degree of the target objects in the video pictures transmitted by the video channels;
the attribution module is used for determining a group to which a preview window for playing a video picture transmitted by the video channel belongs according to the number and/or the motion degree of the target objects;
and the playing module is used for playing the video pictures transmitted by the video channel in the preview window belonging to the group.
Preferably, the attribution module is further configured to determine, after determining the priority to which the video image belongs according to the number and/or the degree of motion of the target object, a group to which a preview window for playing the video image transmitted by the video channel belongs according to the priority and the priority of each group of video windows.
Preferably, the attribution module comprises: the first attribution unit is used for determining a group to which a preview window for playing a video picture transmitted by the video channel belongs according to the number and/or the motion degree of the target objects according to a set period; and/or the second attribution unit is used for determining the group to which the preview window for playing the video picture transmitted by the video channel belongs according to the changed number and/or movement degree of the target objects when the number and/or movement degree of the target objects are changed.
Preferably, the first attribution unit is further configured to determine a group to which a preview window for playing a video frame transmitted by the video channel belongs according to the number of objects and/or the total amount of motion degrees in the period.
Preferably, the attribution module is further configured to divide the group to which the preview window belongs according to the size of the video preview window and/or the number of video pictures.
The invention has the following beneficial effects:
in the technical solution provided by the embodiment of the present invention, after the number and/or the motion degree of the target objects in the video frame are determined, the preview window of the group corresponding to the determined number and/or motion degree is selected for playing, so that, since the information conveyed by the video may be determined by the number and/or degree of motion of the objects, the information may then be arranged to be played in the corresponding group of preview windows, and, as will be readily appreciated, the content of the information conveyed by the video may be determined according to the law of magnitude and/or degree of motion, according to the content, the attention degree required to be given by the user can be determined, different attention degrees are given to preview windows of different groups, therefore, when the preview window is played, the user can give corresponding attention and processing modes, which undoubtedly reduces the information processing difficulty and load of the user, so that the user can not only see but also see accurately.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic flow chart illustrating an implementation of a video playing method according to an embodiment of the present invention;
FIG. 2 is a diagram illustrating an exemplary video preview window in accordance with an embodiment of the present invention;
FIG. 3 is a flowchart illustrating a specific operation of video playing according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a video playback device according to an embodiment of the present invention.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
Fig. 1 is a schematic flow chart of an implementation of a video playing method, as shown in the figure, the method may include the following steps:
102, determining a group to which a preview window for playing a video picture transmitted by a video channel belongs according to the number and/or the motion degree of the target objects;
and 103, playing the video picture transmitted by the video channel in the preview window belonging to the group.
In an implementation, the group to which the preview window belongs is divided according to the video preview window size and/or the number of video pictures.
Specifically, taking NVR or DVR devices as examples, the video preview windows may be divided into three groups by size and number:
a) the I group has the largest size and the number of pictures is small (for example, 1);
b) group II size second, in the number of pictures (e.g., 4);
c) group III has the smallest size and a large number of pictures (e.g., 8, 16, 20, 32, etc.).
The video preview window is divided into one of the above three grouping cases, but it is obvious that the implementation is not limited to the above one grouping.
After the number and/or the motion degree of the target objects in the video picture are determined, the preview window of the group corresponding to the target objects can be selected for playing, so that the information transmitted by the video can be determined through the number and/or the motion degree of the target objects, and then the information can be arranged to the preview window of the corresponding group for playing.
In implementation, the most common way of setting priorities may be adopted for different groups of preview windows with different attention degrees, and at this time, the group to which the preview window for playing the video image transmitted by the video channel belongs is determined according to the number and/or the motion degree of the target object.
Taking the above grouping as an example, when setting the priority of each group of video windows, the priority of each group of video windows may be determined by dividing the video preview windows into three groups of priority levels, where the priority of the first group is "high", the priority of the second group is "medium", and the priority of the third group is "low".
In determining the priority level of the video pictures transmitted by the video channel, a quantization mode may be adopted so as to automatically perform the step of determining the priority level of the video pictures according to the number of the objects and/or the motion degree, and in the following example, the quantized value is referred to as: the weight of the video channel, that is, the weight of the video channel is calculated by the formula of "the number of objects" and "the degree of motion".
The implementation of calculating and counting the weight of each video channel in real time is specifically described below.
a) Finding the number of target objects and the motion degree thereof in a video picture by utilizing the existing motion detection technology;
b) number of objects in video frame: for example: each target object represents 1 unit weight, and N unit weights are obtained when N target objects exist;
c) degree of motion of each object in the video frame: for example: dividing three grades of 'strong', 'middle' and 'low' according to the intensity degree, and respectively representing '3', '2' and '1' unit weights;
d) the weight of the video channel is calculated by the formula of "number of objects" and "degree of motion", for example:
where ω is the video channel weight, X, Y are all weight coefficients, representing the result of the video channel weight, SiThe motion degree of the target i is (i is 1,2, N), which is mainly determined by the number of the target objects or the motion degree, the value range is from 0.00 to 1.00, and the value precision can be accurate to 2 bits after decimal points according to the actual requirement. Then, when setting the video picture priority, a video channel weight greater than 0.8 may be set as a high priority, and 0.8 to 0.5 may be set as a medium priority.
In the implementation process, the priority of each group of video windows is determined according to the size of the video preview window and/or the number of the video pictures, and after the priority of the video pictures is determined according to the number of the target objects and/or the motion degree, the corresponding video window priority can be selected according to the set video picture priority, and after the video window priority and the video picture are matched, the video picture with the corresponding priority can be played in the video window. For example, a video picture whose priority is "high" is played in a video window of the I-th group (priority is "high").
Next, a description will be given of an implementation of determining a group to which a preview window for playing a video frame transmitted through the video channel belongs, according to the priority to which the video frame belongs and the priority of each group of video windows.
In the implementation, the group to which the preview window for playing the video picture transmitted by the video channel belongs is determined according to the number and/or the motion degree of the target objects, and the method further includes:
determining a group to which a preview window for playing a video picture transmitted by the video channel belongs according to the number and/or the motion degree of the target objects according to a set period;
or when the number and/or the motion degree of the target objects are changed, determining the group to which the preview window for playing the video picture transmitted by the video channel belongs according to the changed number and/or the changed motion degree of the target objects.
In the implementation, the group to which the preview window for playing the video picture transmitted by the video channel belongs is determined according to the number and/or the motion degree of the target objects according to the set period, and the method further comprises the following steps:
and determining the group to which the preview window for playing the video picture transmitted by the video channel belongs according to the number and/or the motion degree of the target objects in the set period, wherein the group is determined according to the total number and/or the motion degree of the target objects in the period.
In one embodiment, the video is dynamically ordered according to video channel weight (e.g., number of people), periodicity (e.g., 15 seconds configurable) or preemptive (the weight changes or triggers).
Periodic type: counting N seconds, accumulating the weight of the video channel, and triggering an adjusting window after timeout;
preemptive type: and counting for 1 second, triggering an adjusting window when the video channel weight is changed.
a) The highest video channel weight is placed into group I (e.g.: the most people);
b) put into group II of video channel weights (e.g.: among the number of people);
c) the video channel weights are low from the party to group III (e.g.: a small number of people).
Fig. 2 is a schematic view of a video preview window, and a video frame transmitted by the video channel is played in a preview window belonging to the group, where the frame is as shown in fig. 2:
the total number of 20 video preview windows is, the No. 1 window is the largest, the 2-5 windows are the second, and the 6-20 windows are the smallest;
the window 1 displays the video with the most people;
2-5 windows display videos of people for many times;
the 6-20 window displays additional video.
For better understanding, the following description is given by way of example.
Example 1:
fig. 3 is a specific work flow diagram of video playing, as shown in fig. 3:
And step 303, calculating and counting the weight of each video channel in real time.
For example: if 1 person appears in the video, the weight of the target number is "1 ═ 1 ×, and the motion degree of the picture is" medium ", that is, the weight of the motion degree is" 2 ", then the weight of the video channel is" 1 × +2 × (X, Y are the value ranges of "0.00-1.00"), if X, Y all take the value of "1", then the final result of the video channel weight is "5".
Periodic type: counting N seconds, accumulating the weight of the video channel, and triggering an adjusting window after timeout;
preemptive type: and counting for 1 second, triggering an adjusting window when the video channel weight is changed.
In a specific implementation, the number of video channels is larger than the number of video windows, for example, there are 100 video channels, but only 10 video windows for playing. It is easy to know that the video pictures played in the 10 windows can be determined by means of priority and the like. Specifically, for example, a priority level threshold or a video channel weight threshold may be set, then video pictures to be played are determined according to the threshold, and the video pictures to be played are grouped according to priority. Of course, the frames that do not need to be played can also be directly divided into a group with the lowest priority level according to the video channel weight, and the group is not played. For those skilled in the art, when the video channel weight can be determined, the rule for selecting the video window to play is easy to set according to the quantized values, and only needs to be set according to the needs in specific practice.
Based on the same inventive concept, the embodiment of the present invention further provides a video playing device, and as the principle of the device for solving the problem is similar to that of a video playing method, the implementation of the device can refer to the implementation of the method, and repeated details are not repeated.
Fig. 4 is a schematic structural diagram of a video playback device, as shown in the figure, the device may include:
a determining module 401, configured to determine the number and/or the degree of motion of the target object in the video frame transmitted by each video channel;
an attribution module 402, configured to determine, according to the number and/or the degree of motion of the target object, a group to which a preview window for playing a video frame transmitted by the video channel belongs;
a playing module 403, configured to play the video frame transmitted by the video channel in the preview window belonging to the group.
In implementation, the attribution module is further configured to determine, after determining the priority to which the video image belongs according to the number and/or the degree of motion of the target object, a group to which a preview window for playing the video image transmitted by the video channel belongs according to the priority and the priority of each group of video windows.
In an implementation, the attribution module includes: the first attribution unit can be further used for determining a group to which a preview window for playing a video picture transmitted by the video channel belongs according to the number and/or the motion degree of the target objects according to a set period; and/or the second attributing unit may be further configured to determine, when the number and/or the degree of motion of the target objects is changed, a group to which a preview window for playing a video frame transmitted by the video channel belongs, according to the number and/or the degree of motion of the changed target objects.
In an implementation, the first attribution unit may be further configured to determine, according to the number of objects and/or the total amount of motion degrees in the period, a group to which a preview window for playing a video picture transmitted by the video channel belongs.
In an implementation, the attribution module may be further configured to divide the group to which the preview window belongs according to the size of the video preview window and/or the number of video pictures.
To sum up, in view of the deficiency that the existing video playing preview manner in the prior art can only play the video frame transmitted by the video channel, and the user can only passively receive the playing content, in the video playing scheme provided in the embodiment of the present invention, after determining the number and/or the motion degree of the target objects in the video frame, the preview window of the group corresponding to the target objects is selected for playing, so that the information conveyed by the video can be determined according to the number and/or the motion degree of the target objects, and then the information can be arranged to the preview window of the corresponding group for playing, it is easy to think that the information content conveyed by the video can be determined according to the rule of the number and/or the motion degree, the attention degree required to be given by the user can be determined according to the content, and different attention degrees are given to the preview windows of different groups, therefore, when the preview window is played, the user can give corresponding attention and processing modes, which undoubtedly reduces the information processing difficulty and load of the user, so that the user can not only see but also see accurately.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. A video playback method, comprising:
determining the number and/or the motion degree of the target objects in the video pictures transmitted by each video channel;
determining the information content conveyed by the video according to the number and/or the motion degree of the objects, and determining the group to which a preview window for playing a video picture transmitted by the video channel belongs according to the content, wherein the number and/or the motion degree of the objects are determined according to the number and/or the motion degree of the objects according to a set period, or when the number and/or the motion degree of the objects are changed, the number and/or the motion degree of the changed objects are determined;
and playing the video pictures transmitted by the video channel in the preview window belonging to the group.
2. The method of claim 1, further comprising:
the method comprises the steps of determining information content conveyed by a video according to the number and/or the motion degree of objects, determining a group to which a preview window for playing a video image transmitted by a video channel belongs according to the content, and determining the group to which the preview window for playing the video image transmitted by the video channel belongs according to the priority and the priority of each group of video windows after determining the priority to which the video image belongs according to the number and/or the motion degree of the objects.
3. The method according to claim 1, wherein the group to which the preview window for playing the video pictures transmitted by the video channel belongs is determined according to the number of objects and/or the total amount of motion in the period.
4. A method according to any one of claims 1 to 3, wherein the group to which the preview window belongs is divided according to the video preview window size and/or the number of video pictures.
5. A video playback apparatus, comprising:
the determining module is used for determining the number and/or the motion degree of the target objects in the video pictures transmitted by the video channels;
the attribution module is used for determining the information content conveyed by the video according to the number and/or the motion degree of the target objects and determining a group to which a preview window for playing a video picture transmitted by the video channel belongs according to the content;
the playing module is used for playing the video pictures transmitted by the video channel in the preview window belonging to the group;
wherein, the module of attribution includes:
the first attribution unit is used for determining the information content conveyed by the video according to the number and/or the motion degree of the target objects according to a set period, and determining a group to which a preview window for playing a video picture transmitted by the video channel belongs according to the content;
and/or the second attribution unit is used for determining the information content conveyed by the video according to the changed number and/or the movement degree of the target objects when the number and/or the movement degree of the target objects are changed, and determining the group to which the preview window for playing the video picture transmitted by the video channel belongs according to the content.
6. The apparatus of claim 5, wherein the attribution module is further configured to determine information content conveyed by the video according to the number and/or the degree of motion of the target objects, and after determining the priority to which the video belongs according to the content, determine a group to which a preview window for playing the video transmitted by the video channel belongs according to the priority and the priority of each group of video windows.
7. The apparatus of claim 5, wherein the group to which the preview window for playing the video pictures transmitted by the video channel belongs is determined according to the number of the objects and/or the total amount of motion in the period.
8. The apparatus according to any of claims 5 to 7, wherein the attribution module is further configured to divide the group to which the preview window belongs according to the size of the video preview window and/or the number of video pictures.
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| CN101060618A (en) * | 2006-04-21 | 2007-10-24 | 孟智平 | Intelligent TV wall monitor system and its storage system |
| CN102024446A (en) * | 2010-11-23 | 2011-04-20 | 广东威创视讯科技股份有限公司 | Large-screen spliced wall display device and method |
| CN102860003A (en) * | 2010-03-09 | 2013-01-02 | 常州环视高科电子科技有限公司 | A surveillance system and method |
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| CN101060618A (en) * | 2006-04-21 | 2007-10-24 | 孟智平 | Intelligent TV wall monitor system and its storage system |
| CN102860003A (en) * | 2010-03-09 | 2013-01-02 | 常州环视高科电子科技有限公司 | A surveillance system and method |
| CN102024446A (en) * | 2010-11-23 | 2011-04-20 | 广东威创视讯科技股份有限公司 | Large-screen spliced wall display device and method |
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