KR100794957B1 - Digital video recoder capable of searching a text - Google Patents

Abstract

The present invention relates to a digital image storage apparatus based on search based on text, comprising: a camera image storage unit for storing a camera image in a storage unit; An image index information generation unit for generating and storing index information of the camera image; A text information storage unit for storing text information input from the text information input device into a storage means; A text index information generator for generating and storing index information of the text information; A text information extraction unit for extracting text information satisfying an input character search condition from the storage means; A target image extractor for extracting, from the storage means, an image of a time point at which text information selected by a user is input from the extracted text information; And a display data output unit for outputting the extracted text information or the target image or a combination thereof to a display device.

By inputting only a simple character search condition, there is an effect of quickly searching and confirming an image of a time point at which text information satisfying the condition is input.

DVR, text, video search.

Description

Digital video storage device based on text search {DIGITAL VIDEO RECODER CAPABLE OF SEARCHING A TEXT}

1 is a diagram illustrating a practical use of a text search based digital image storage device according to an embodiment of the present invention.

2 is a block diagram of a text search based digital video storage device according to an embodiment of the present invention;

3 is a text search based image search flowchart according to an embodiment of the present invention.

The present invention relates to a digital image storage device, and more particularly, to a digital image storage device based on text.

Point of Sale (POS) system refers to a system that comprehensively manages the distribution economy such as sales office work, market research, inventory research, and point of sale management by installing POS terminals in stores. In other words, a POS terminal equipped with an electronic cash register function and a computer function is installed at a sales checkout counter such as a department store or a large discount mart to sell sales management data (sales management, inventory management, etc.) accompanying product sales. At this point, the collection is automatically recorded. The POS terminal has a function such as a cash register, a function of temporarily recording data, and a function of connecting and transmitting data at the time of sale to a higher level device, and transmitting a product code by a key input or a scanner to a higher level device. Also perform.

On the other hand, Digital Video Recorder (DVR) is a next-generation CCTV surveillance system that converts the image input from the CCD camera into digital and stores it in the storage means. Such a digital video surveillance system (DVR) uses a hard disk or a DVD as a storage medium instead of a video tape, and thus has an advantage of excellent playback screen quality and easy search of the storage screen.

In general, losses caused by shopping centers and large discount stores include inventory losses caused by too much storage and management difficulties, opportunity losses caused by the absence of goods, and due to customer injustices or store staff irregularities. Loss of goods, cash loss caused by miscounts or miscalculations by the counter staff. Some of these losses can be reduced by using a POS system, and some losses can be reduced by installing surveillance cameras throughout the store, but losses caused by the intention of counter staff cannot be prevented.

In order to solve this problem, a system that integrates a POS system and a monitoring system has been developed. One important function of such a system is the efficient search for recorded video. Known methods include a search method based on time information, a search method detected by motion detection, and a search method used by events.

However, the illustrated method has a structural limitation that the user cannot immediately search for a situation in which the desired character information is input, and smoothly because a large amount of text information is input when the DVR is used in conjunction with a POS or ATM. There is a problem that the processing for the character information is not made.

Accordingly, an object of the present invention is to provide a text search based digital image storage device capable of quickly searching for an image linked with desired character information.

Digital image storage device according to an embodiment of the present invention for achieving the above object is a device that can store or retrieve the image associated with the text information, such as POS terminal, elevator system,

A camera image storage unit for storing a camera image in a storage unit;

An image index information generation unit for generating and storing index information of the camera image;

A text information storage unit for storing text information input from the text information input device into a storage means;

A text index information generator for generating and storing index information of the text information;

A text information extraction unit for extracting text information satisfying an input character search condition from the storage means;

A target image extractor for extracting, from the storage means, an image of a time point at which text information selected by a user is input from the extracted text information;

And a display data output unit for outputting the extracted text information or the target image or a combination thereof to a display device.

According to the configuration feature as described above, the present invention extracts only the text information that satisfies the input character search conditions, and extracts and displays only the image of the time point at which the text information selected by the user is input, the character information and It will have the effect of quickly searching the linked video.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, if it is determined that a detailed description of related known functions or configurations may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. Hereinafter, an embodiment of the present invention will be described assuming a digital video storage device (DVR) integrated with a POS terminal.

1 is a diagram illustrating a practical use of a text search based digital image storage device according to an embodiment of the present invention, and assumes a system installed and operated in a discount store.

As shown in FIG. 1, a text search based digital image storage device according to an exemplary embodiment of the present invention may be connected to and operated with a plurality of cameras 100 installed in a store. The text search based digital image storage device 200 according to an embodiment of the present invention may be implemented as an integrated device such as a POS terminal, or may be implemented as a device separate from the POS terminal. Importantly, the device according to an embodiment of the present invention stores text information input from a POS terminal (or an external device) in association with a camera output image, and searches for text satisfying a character search condition input by the user. It is to search and display the image quickly and accurately. Referring to FIG. 2, the configuration of a text search based digital image storage device is described in detail.

First, the camera image storage unit 202 stores the image output from the camera installed in the store in the first storage means 206, which is a storage means. The camera image storage unit 202 includes a signal processor for digitally converting the camera output image and compressing the converted image in units of frames.

The image index information generator 204 generates index information of the camera image compressed and stored in units of frames and stores the index information in the first storage means 206. The index information includes a storage location, size, time information, channel information, event information of a recording source, and the like, of a compressed and stored camera image.

The first storage unit 206 stores not only the camera image but also index information of the stored camera image. The first storage means 206 may be implemented as one HDD together with the second storage means 214 which will be described later, and may be replaced by a separate recording medium or data storage means.

The text information storage unit 210 stores text information input from a character information input device such as a POS terminal and an elevator device in the second storage means 214, which is a storage means. For reference, the text information may be input from a character information input device through an interface unit such as the POS interface unit 208. In the case of an integrated device, it may be directly input. An example of text information input from a POS terminal is as follows. In the following, Unit Price, Qty and amount correspond to fields to be compared in the character search condition described later.

    ITEM Unit Price Qty amount

    Coke $ 2.20 1 (s) 2.20

    Fanta $ 2.20 1 (s) 2.20

    Hotdog $ 3.50 3 (s) 10.50

    Pepsi $ 1.95 1 (s) 1.95

The text index information generation unit 212 generates index information for text information stored in the second storage means 214 and stores the index information in the second storage means 214. The text index information includes a storage location, a size, time information, and the like of the text to be stored.

The second storage means 214 stores not only the text information but also index information about the stored text information.

The text information extracting unit 216 extracts text information satisfying the character search condition input through the data input unit from the second storage unit 214 and passes the extracted text information to the display data output unit 220. More specifically, the text information extracting unit 216 extracts information of an item item that is input as a character search condition and information of an item item that is greater than or smaller than the comparison target value that is input together as a search condition among the comparison object fields of the item item. To the display data output unit 220. Further, when one or more text information is selected by the user among text information satisfying the character search condition, the text information extracting unit 216 extracts index information of the selected text information, and then the target image extracting unit 218 to be described later. Pass it. Index information of the selected text information may be made by the target image extractor 218. Furthermore, the text information extracting unit 216 may extract text information satisfying the text search condition stored in advance by the second storage means 214 periodically for each automatic search time set by the user.

On the other hand, the target image extractor 218 extracts, from the first storage means 206, an image at the time when the text information selected by the user is input by using the index information of the selected text information passed by the text information extractor 216. do. If only the text information selected by the user is transmitted from the text information extractor 216, the target image extractor 218 searches the second storage means 214 for index information of the selected text information, The first storage means 206 may extract an image of a time point at which the corresponding text information is input.

The display data output unit 220 outputs the text information extracted by the text information extractor 216 or the target image extracted by the target image extractor 218 or a combination thereof to a display device (monitor). The display data output unit 220 may be implemented as an OSD processor.

Hereinafter, an image search process based on text search according to an embodiment of the present invention will be described with reference to FIG. 3.

3 is a flowchart of a text search based image search according to an embodiment of the present invention.

Referring to FIG. 3, first, the first storage means 206 of a text search based digital image storage device stores a camera image output from the camera 100 and index information of the camera image. When text information of the type as illustrated during camera image storage is input from the POS terminal, the text information and text index information thereof are also stored in the second storage means 214.

As described above, the administrator or the like may input a character search condition while the camera image and the text information are stored. The character search condition includes an item item and a comparison object field, a comparison object value, and a case symbol of the item item. Specifically, the administrator may input a character search condition such as "Coke> ^^ 1" through a data input means. Coke represents an item in the above example, the symbol '^^' represents the second comparison field, that is, "Qty", and '1' and '>' represent the comparison value and the case respectively. Therefore, the character search condition "Coke> ^^ 1" can be interpreted to mean searching for text information having a quantity of coke (Qty) of 1 or more.

As such, when the character search condition is input by the administrator (step S1), the text information extracting unit 216 compares the input text search condition with each of the stored text information (step S2) and the text information satisfying the character search condition. Extract from the second storage means 214 (step S3). And by outputting the extracted one or more text information to the display data output unit 220, the administrator or the like can select the desired text information from the text information displayed through the monitor. In some cases, the text information extracting unit 216 may extract all information including an item item input as a character search condition.

If the administrator or the like has selected one text information through the data input means, the information is applied to the text information extraction unit 216. If the administrator selects the text information (step S4), the text information extracting unit 216 extracts the index information of the selected text information from the second storage means 214 and passes it to the target image extracting unit 218. .

The target image extractor 218 refers to the index information of the selected text information transmitted from the text information extractor 216, and more specifically, to the image at the time when the selected text information is input with reference to the storage time information of the text information. Extracted from the first storage means (206) (step S5). And by outputting the extracted camera image to the display data output unit 220, as a result, the administrator can check the camera image at the time when the text information selected by the user through the monitor. When the display data output unit 220 is implemented as an OSD processing unit, the extracted camera image and the selected text information may be displayed on one screen, so that an administrator or the like may check the extracted camera image and the selected text information together. Can be.

Accordingly, the present invention can obtain an effect of quickly searching and confirming an image of a time point at which text information satisfying the condition is input by inputting only a simple character search condition.

As described above, the present invention inputs a simple character search condition and extracts and displays an image at the time when the text information selected by the user is input after extracting the text information satisfying the condition. The advantage is that you can quickly search for images.

Furthermore, the present invention has an advantage that can be widely applied to DVR devices used in conjunction with text information input devices such as POS, ATM, and elevators.

On the other hand, the present invention has been described with reference to the embodiments shown in the drawings, which are merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be defined only by the appended claims.

Claims (5)

delete A camera image storage unit for storing a camera image in a storage unit; An image index information generation unit for generating and storing index information of the camera image; A text information storage unit for storing text information input from the text information input device in a storage unit; A text index information generator for generating and storing index information of the text information; A text information extracting unit for receiving a text search condition including an item item and a comparison field of the item item, a comparison object value and a case symbol and extracting text information satisfying the condition from the storage means; A target image extractor for extracting, from the storage means, an image of a time point at which text information selected by a user is input from the extracted text information; And a display data output unit for outputting the extracted text information or the target image or a combination thereof to a display device. 2. The digital image storage device of claim 2, wherein the text information extractor extracts all information including an item item input as a text search condition. The method of claim 2, wherein the text information extraction unit, A text search based digital image storage device, characterized in that for extracting text information satisfying a character search condition at each automatic search time set by a user. The digital image storage device of claim 2, wherein the display data output unit is an OSD processor.

Images