CN1734627A - Image storage and search method for digital video recording system - Google Patents
Image storage and search method for digital video recording system Download PDFInfo
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- CN1734627A CN1734627A CN 200410053328 CN200410053328A CN1734627A CN 1734627 A CN1734627 A CN 1734627A CN 200410053328 CN200410053328 CN 200410053328 CN 200410053328 A CN200410053328 A CN 200410053328A CN 1734627 A CN1734627 A CN 1734627A
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Abstract
The invention relates to DVR storage and searching method which is convenient to proceed the relating operation by the degree of displaying image motion, wherein the DVR system of division index and image record comprises the following steps according to the degree of displaying image motion: setting the standard index value of image playing data directly; detecting the index information storage with recording image data; comparing the result with the present one; playing corresponding image data of comparison result only. Therefore, the method searches the image data conveniently and rapidly according to the ratio of the motion detection.
Description
(1) technical field
The invention relates to the method for image storage and search, especially about the degree (many and few) that is used for display image action image storage and searching method with a kind of digital video record (DVR) system of carrying out action record (motion recording) data search easily.
(2) background technology
With regard to the image that prior art search is recorded, it is continuous, action only providing and searching for the relevant type (recordingtype) of recording, the information of (continuous, motion, the sensor etc.) of induction etc.
But, because above-mentioned searching method does not have the advantage of searching for easily, so need a large amount of search times.
(3) summary of the invention
The present invention will solve the above problems and propose, the image storage and the searching method that the purpose of this invention is to provide a kind of digital video record (DVR) system, with the motion detection ratio of the action degree of presentation video a entry index, make the user then can promptly search for the method for relevant portion where necessary as searching method.
For achieving the above object, according to digital video record (DVR) the system stores method of the present invention design, comprise the step of determining the index that to distinguish according to how many degree of image action and the step that will record with view data through the index of determining.
And, digital video record of the present invention (DVR) system search, with regard to playing with regard to the DVR system of the view data of being recorded, comprise the steps: the step that the standard index value to the view data that will play is provided with according to the index how many degree of image action are distinguished; Measure the step of the index information that stores with the view data of recording; The step that the index information measured and set standard index value are compared; And the step of only playing respective image data according to comparative result.
Effect of the present invention:
As mentioned above, image storage and the searcher rule by digital video record system of the present invention can make things convenient for, promptly carry out the view data search according to the motion detection ratio.
For further specifying above-mentioned purpose of the present invention, design feature and effect, the present invention is described in detail below with reference to accompanying drawing.
(4) description of drawings
Fig. 1 is suitable for common existing digital video record system (DVR) of the present invention to record pie graph with Play System.
Fig. 2 is that expression is derived recording of motion images and action degree according to the present invention and made the process flow diagram of the process that presents in diagrammatic form.
The synoptic diagram of the motion detection ratio that the process that Fig. 3 is to use graphical representation to pass through Fig. 2 derives.
Fig. 4 is the process flow diagram of expression according to the searching method of the index of searching for ratio with the graphical representation action.
(5) embodiment
Below, with reference to accompanying drawing, the image storage and the searching method embodiment of digital video record of the present invention (DVR) system described in detail.
At first, summary of the present invention is described.
Also to search under the situation of the image of being recorded in sensed activation, with present image and before image when comparing, calculate to have and how much move measuredly, show by data or chart then, used as a search index, thereby search for easily.
Said method is very useful when recorded a video in the few place of image change.For the scene that always has a little action to change because of factors such as picture signal flicker or wind,, then can search for a lot of data of variable quantity of jerking easily if using said method searches for.
Fig. 1 is the pie graph that is suitable for common DVR video recording of the present invention and Play System.
As shown in the figure, comprise following formation: the camera unit 101 that constitutes by photography means such as video cameras; The boundary element 102 that the image that the video camera of (channel) is recorded to is in several ways handled; To become the converting unit 104 of necessary data mode by the image transitions that boundary element 102 receives,, after capturing unit 103 converts digital signal to, be input to converting unit 104 again if when wherein boundary element 102 outputs are simulating signal; Storage is through the storage unit 105 of converting unit 104 data converted; Play stored data or through the broadcast unit 106 of data converted; The control module 107 of control system running.
In above-mentioned storage unit 105, the image of input stores by each picture; And, measure the current picture and the later action ratio of the picture of input, then this ratio is stored in the storage unit 105, so that when search, use.
The above-mentioned method of measuring the action of each picture has existed multiple, owing to do not really want to measure the action of each picture itself in the present invention, so it is not elaborated, just gives one example.
The action vector quantization method of image, in the compressed image of the compression method that has used the using action compensation method, for each picture, the action vector is carried out quantized interval in horizontal/vertical binary difference mode to be cut apart, and measure the number of action vector of each quantized interval of mapping, generate the histogram of action vector.
At this, just the action vector is carried out with regard to quantized interval cuts apart in horizontal/vertical binary difference mode, the vector (0,0) that will move places the center of quantization areas, with the maximum magnitude of the action vector of appointment up and down, left and right four zones are provided with quantized interval.
Fig. 2 is that expression is derived recording of motion images and action degree according to the present invention and made the process flow diagram of the process that presents in diagrammatic form.
S201 is provided with the standard value (A) that image moves.
S202, measure current input the image picture action degree (B) and record.
S203 according to the action degree (B) of standard value (A) and current input, derives the 1st motion detection ratio (B/A) and represents in chart.
S204 afterwards, measures the action degree (C) of next input picture and records.
S205 according to action (C) degree of present image working value (B) and next input, derives the 2nd motion detection ratio (C/B) and represents in chart.
S206 carries out said process (that is, carrying out flow process S204-S206 repeatedly) repeatedly, promptly derives the process of the 3rd motion detection ratio (picture of front/current picture) according to the image action before next image action and this image.
And the user then carries out picture search according to the motion detection ratio of as above deriving.
The synoptic diagram of the motion detection ratio that the process that Fig. 3 is to use graphical representation to pass through Fig. 2 derives.
As shown in the figure, curve map forms square wave according to the action degree, transverse axis express time or corresponding track, and vertical pivot is represented the motion detection ratio.
And, the mean value of motion detection ratio can be set, when the usage operation detection method used as a search condition.
Fig. 4 is the process flow diagram of expression according to the searching method of the index of searching for ratio with the graphical representation action.
S401 at first, judges whether to record the data of motion images, if do not have, flow process finishes.
S402 through above-mentioned judgement, when detecting the data of motion images, then reads the motion detection ratio by chart.
S403, the user searches for effectively according to the motion detection ratio, and flow process finishes.
If expansion foregoing, then for after being provided as the index value that the user wants the standard of searching for, measure the index information of the data of recording, and itself and set index value are compared, only be chosen in standard value then and play with interior or above data.
As mentioned above, the invention relates to the degree (many and few) that is used for display image action image search method with the DVR system that carries out action record (motion recording) data search easily.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the present invention, and be not to be used as limitation of the invention, as long as in connotation scope of the present invention, all will drop in the scope of claims of the present invention variation, the modification of the above embodiment.
Claims (2)
1, a kind of image storage of digital video record system and searching method with regard to regard to the digital signal storage data, is characterized in that comprising the steps:
Determine the step of the index that can distinguish according to how many degree of image action; With
The step that to record with view data through the index of determining.
2, a kind of image storage of digital video record system and searching method, with regard to can according to the index how many degree of image action are distinguished play the view data recorded with regard to, it is characterized in that comprising the steps:
The step that the standard index value of the view data that will play is provided with;
Measure the step of the index information that stores with the view data of recording;
The step that the index information measured and set standard index value are compared; And
Only play the step of respective image data according to comparative result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410053328 CN1734627A (en) | 2004-08-02 | 2004-08-02 | Image storage and search method for digital video recording system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410053328 CN1734627A (en) | 2004-08-02 | 2004-08-02 | Image storage and search method for digital video recording system |
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| CN1734627A true CN1734627A (en) | 2006-02-15 |
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| CN 200410053328 Pending CN1734627A (en) | 2004-08-02 | 2004-08-02 | Image storage and search method for digital video recording system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101479988B (en) * | 2006-06-30 | 2012-11-07 | 微软公司 | Multi-dvr node communication |
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2004
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101479988B (en) * | 2006-06-30 | 2012-11-07 | 微软公司 | Multi-dvr node communication |
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