KR100582795B1 - Video searching system - Google Patents

Abstract

The present invention relates to a video search system. In particular, in searching a video stream, a search time of each video section is changed so that a user can search with a desired content (content type) for a desired time. An image search system.

Image search system of the present invention; A user interface unit to which a user command is input according to a condition of a total search time, an average speed, a relative speed, a preference, or a preference, which is a condition of a user's search; A processor unit calculating search speed information for each image section according to a search condition input by the user interface unit and applying the same to the display speed for each section; And a display unit for displaying a search image according to the application of the processor unit.

Video Search Device, Video Search Method

Description

Video Search System {VIDEO SEARCHING SYSTEM}

1 is a view showing a structure in which relative speed information and content information are displayed for each section of an image;

2 is a diagram illustrating a user interface that allows a user to determine a desired preference for each section.

3 is a block diagram of an image search apparatus according to the present invention;

4 is a flowchart showing a user displaying video by applying the present invention.

The present invention relates to a video search system. In particular, in searching a video stream, a search time of each video section is changed so that a user can search with a desired content (content type) for a desired time. An image search system.

In the past, a method of quickly displaying an image at a predetermined constant speed, for example, n-speed search (FF, QUE), has been generally used in searching an image.

Meanwhile, recently, a method of applying a different display speed to a predetermined section of an image by using a scene change and a motion size of the image has also been proposed.

However, in this method, when searching the contents of the entire video image, the search is simply performed at different display speeds for each predetermined section. Therefore, the exact search time, that is, the total search time for one video image, cannot be predicted. There is a restriction that the user will not know at all whether the search will occur.

In addition to the change in the scene or the size of the motion, the user may want to search based on his or her favorite scene.

For example, there is a case in which the content of one video object is desired to be searched at different display speeds according to a specific scene type such as an action scene or melo, but conventionally, the user's needs could not be satisfied.

The video search system of the present invention allows the user to search the video according to the required search time when the user requests the total time required for the search, or input the average search speed if the user inputs the average search speed. According to the present invention, an image search system for searching an image is provided.

In addition, the present invention performs the display of the searched image by applying a relatively different speed for each section according to the change of the scene, the size of the motion, etc. in searching the image according to the total search time requested by the user.                         

In addition, the present invention applies a relatively different speed for each section according to the change of the scene, the size of the motion, etc. in searching the image according to the total search time required by the user, wherein the relative speed is the scene change or the size of the motion in real time The search image is displayed using the calculated information or the pre-calculated speed information.

In addition, the present invention is to search the image according to the total search time required by the user type of the content of the image section when performing the display of the search image by applying a relatively different speed for each section according to the change of the scene, the size of the motion, etc. The search image is displayed by applying a relatively different speed according to the user's preference based on.

In addition, the present invention displays the searched image by adjusting the preference input by the user differently according to the image grade (level) in searching the image.

The image search system of the present invention; A user interface unit to which a user command is input according to a condition of a total search time, an average speed, a relative speed, a preference, or a preference, which is a condition of a user's search; A processor unit calculating search speed information for each image section according to a search condition input by the user interface unit and applying the same to the display speed for each section; And a display unit for displaying a search image according to the application of the processor unit.

Image search system of the present invention; A user interface having image information including relative speed information for each section of the image, and inputting a user command according to a condition of total search time, average speed, relative speed, preference of a user's desired search; A processor unit calculating search speed information for each image section according to a search condition input by the user interface unit and applying the same to the display speed for each section; And a display unit for displaying a search image according to the application of the processor unit.

In addition, the image search system of the present invention; It has image information including relative speed information of each section and content type information of each section, and user's command is input according to the condition of total search time, average speed, relative speed, preference of user's desired search. A user interface unit; A processor unit calculating search speed information for each image section according to a search condition input by the user interface unit and applying the same to the display speed for each section; And a display unit for displaying a search image according to the application of the processor unit.

In the image search system of the present invention, when a user inputs a desired search time, the search is performed by applying a different search speed for each video section during the time.

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For example, a search is performed by displaying relatively slowly in a section where a change of a scene or a large amount of motion is large, and by displaying at a relatively high speed in a boring section that is not.

At the same time, the total search time matches the time you want.

In addition, in the image search system of the present invention, the user prefers to relatively slowly search for a scene that is not, and quickly searches for a scene that is not.

For example, if the user prefers action scenes, the user inputs his or her preferences numerically or qualitatively using the user interface.In this case, the relative speed of each video section is displayed relatively slowly compared to other scenes in the case of action scenes. Other scenes are displayed relatively quickly, and these speeds are calculated and executed within a range to match the total search time.

In other words, if the total search time is given, the display speed of the different search images for each section as described above for the scene preferred by the user is adjusted while matching the total search time.

In addition, the image search system of the present invention may be performed by combining the relative speed of the search that is applied differently according to the user's preference, scene change, motion size, and the like.

In this case, if the preference is high and the scene change or the size of the motion is large, the relative speed will be the slowest. If the preference is low and the scene change or the size of the motion is small, the relative speed will be the fastest.

In the above-described image search system of the present invention, the relative velocity applied differently according to the change of the scene or the size of the motion may be calculated and applied in real time, but the calculated relative velocity information may be included in each section of the image to use this information. .

In order to control the speed according to the user's preference in the image search system of the present invention, the content information of the current section should be included in each section of the image. This corresponds.

FIG. 1 shows a structure in which relative velocity information Si and content information (content type; action, erotic, melo ...) are displayed for each section of the image.

Here, the relative speed information Si may be various information such as the number of frames skipped, the ratio of relative time required to display one section, and the period in which one frame is displayed.

And the relative speed can be applied differently according to the change of the scene and the size of the motion. For example, when the change of the scene or the size of the motion is large, relatively slow speed is applied, and vice versa. .

Therefore, in the structure of FIG. 1, as the relative speed information, the number of skip frames, the ratio of relative time required to display one section or the period in which one frame is displayed, etc. May be expressed.

Meanwhile, in FIG. 1, the content information of the video segment, that is, the type of content, is expressed as information representing what kind of action, erotic, melo, video, daily life, violence, etc. the current section is.

Such information may be represented by a predefined index, may be represented by text, or displayed in other suitable form.

In FIG. 1, segmentation of each section may be performed based on a shot or may be based on content.

FIG. 2 is a user interface that allows a user to define a desired preference for each section. In the case of (a), the interface is directly input as a numerical value (quantitative). Qualitative input interface.

The types of the four section contents used in FIG. 2 are predefined.

3 shows a schematic configuration of an image search apparatus according to the present invention.

The video signal source 301 provides video information including relative speed information and / or content type information as shown in FIG. 1 and may be DVCR, VCD, DVD, D-TV, VOD, and the like.

The user interface 302 provides a user environment for inputting (selecting) information such as a total search time or preference desired by the user.

The search processor 303 is connected to the user interface 302 and is also connected to the image processor 304 to determine search conditions (average speed, preference, search time, etc.) input by the user (selection), According to the determination result, a command to variably control the display speed of the searched image is provided to the image processor 304.

The image processor 304 performs variable control of the display speed of the image from the image signal source 301 according to the instruction of the search processor 303, and transmits the image signal to the display unit 305 according to the result. to provide.

The display unit 305 shows the display image processed by the image processor 304 to the user through an appropriate display means such as an LCD, a VDT, or a PDP.

FIG. 4 shows the procedure of image search performed by the image search system of the present invention. In FIG. 4, the search time or average speed is input, and the total search time t is calculated according to whether the relative speed or the preference is applied. An embodiment in which the searched image is displayed at an appropriate speed for each section by obtaining an overspeed coefficient (a) is shown.

First, the user inputs the total search time or the average speed (average search speed) using the user interface 302 of FIG. 3, and the search processor 303 recognizes this.

In addition, the user inputs whether the relative speed Si is applied or a preference (see FIG. 2) using the user interface 302, which is recognized by the search processor 303.

The search processor 303 sets (TRUE or FALSE) flags F1, F2, F3, and F4 indicating whether to set the corresponding information according to the input information.

When the search time is input (F1 = TRUE), the total search time t is calculated as follows.

First, Di = the length of the interval (e.g. the number of frames, display time at normal fast), Si = relative velocity for each interval, Pi = relative velocity as determined by user preference, n = total interval, a = speed factor When you say

(One). If all sections apply the same relative speed;

(2). When applying a given relative velocity in each section;

(3). When different speeds are applied according to the preferences indicated by the user in each section;

(4). In the case of applying the given relative speed and the preference indicated by the user in each section;

Therefore, the total search time desired by the user is controlled by the speed factor a, and when a = 1, the total search time is t 'and if the user wants the search time t_user, a = t_user / t' is determined. If the display speed is s when a = 1, then the speed changed by a is s' = s / a.

In this way, if the user inputs the search time, the total search time t is calculated, and the speed factor a is calculated therefrom.

Or, if the user inputs the average speed (F2 = TRUE), the speed coefficient a is calculated according to the average speed.

The search processor 303 displays the search image according to whether the relative speed is applied by the user (F3 = TRUE or F3 = FALSE) and the input of the preference (F4 = TRUE or F4 = FALSE).

That is, when only the relative speed is applied (F3 = TRUE, F4 = FALSE), the image processor unit 304 applies the relative speed defined for each section (average speed when F2 = TRUE and total search time when F1 = TRUE). The corresponding search image is displayed on the display unit 305 for each corresponding speed.

In other cases, when only the preference is applied (F3 = FALSE, F4 = TRUE), the image processor unit 304 applies the relative speed according to the preference (average speed when F2 = TRUE and total search time when F1 = TRUE). The search image is displayed on the display unit 305 for each speed.

In other cases, when both relative speed and preference are applied (F3 = TRUE, F4 = TRUE), the relative speed is applied according to the relative speed and preference for each section (average speed if F2 = TRUE, total search time if F1 = TRUE) In this case, the image processor 304 displays the corresponding search image for each of the corresponding speeds on the display unit 305.

In other cases, when neither the relative speed nor the preference is applied (F3 = FALSE, F4 = FALSE), the search time or average speed entered is applied (average speed if F2 = TRUE, total search time if F1 = TRUE). The processor 304 displays the corresponding search image for each speed on the display unit 305.

In this way, the user may input a desired search time, and may determine whether to apply a relative speed according to a preference or apply a predetermined relative speed for each section to perform an image search.

As another embodiment of the image search system of the present invention: a preference input by a user may be adjusted and applied differently according to a level.

That is, when the user inputs a preference as shown in (a) or (b) of FIG. 2, the search speed is changed according to the level of the video object.

For example, even if the action scene is preferred, the display speed of the searched image is adaptively applied quickly or slowly depending on the level of the image, that is, the level of the violent or sensational scene.

The image search system of the present invention can search according to a search time desired by a user when searching for an image, and can simultaneously apply different search speeds according to the characteristics of each section.                     

In addition, the video search system of the present invention may apply different search speeds according to the content type of the user's preferred section, and such an application is usefully used for video related displays such as DVD and VOD.

Claims (8)

A user interface unit to which a user command is input according to a condition of a total search time, an average speed, a relative speed, a preference, or a preference, which is a condition of a user's search; A processor unit calculating search speed information for each image section according to a search condition input by the user interface unit and applying the same to the display speed for each section; And a display unit which displays a search image according to the application of the processor unit. The image search system according to claim 1, wherein the search speed for each image section is calculated in real time according to the total search time to display the search image. The image search system according to claim 1, wherein the search speed for each video section is calculated from the total search time and the relative speed information presented in the video segment to display the search video. The image search system of claim 3, wherein the relative speed information is information corresponding to a change of a scene of a video or a magnitude of a motion. The image search system according to claim 1 or 4, wherein the search speed for each video section is calculated according to a total search time and a preference input by a user to display a search image. delete The image search system of claim 5, wherein the user preference is input as either quantitative information or qualitative information input by the user corresponding to the type of content presented in the image segment. The image search system of claim 5, wherein the display speed of the search image is controlled by applying the user input preference to a different degree according to the level of the image.

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