JP2002312790A - Device for judging object to be detected - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for judging an object to be detected capable of adjusting a judgment value to a proper value. SOLUTION: An object to be detected judging device 100 is provided with a moving pixel detecting part 120 for detecting moving pixels in a video based on an inputted video signal, a labeling processing part 130 for discriminating the moving pixels for each moving object, a moving object feature variable calculating part 140 for calculating the feature variable, such as the area, height, moving speed, moving amounts, and aspect ratio of each moving object, a display signal generating part 170 for generating a display signal for displaying an emphasized video at the video of an external display, and a video compositing part 180 for compositing the display signal from the display signal generating part 170 with the video signal from the external camera. The feature variable calculated by the moving object feature variable calculating part 140 are superimposed on the same signal as the video used for calculating the feature variable by the display signal generating part 170 and the video compositing part 180.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a detection target determining apparatus for determining whether or not a moving object in an image is a detection target such as an intruder, and more particularly, to easily adjust the determination performance. The present invention relates to a detection target determination device capable of performing the following.

[0002]

2. Description of the Related Art FIG.
The detection target determination device 900 shown in FIG.

[0003] In FIG.
When an image signal is input from an external camera (not shown), the input image signal is input to an A / D converter 91.
0 converts the analog signal to a digital signal. When the video signal is converted into a digital signal, the moving pixel detecting unit 920 detects a moving pixel in the video based on the video signal converted into the digital signal, and the labeling processing unit 930 detects the moving pixel. Is distinguished for each block, that is, for each moving object.

When the moving pixel detecting section 920 and the labeling processing section 930 detect a moving object from a video signal, the moving object feature amount calculating section 940 calculates the area, height, moving speed, moving amount, aspect ratio, etc. for each moving object. The detection target determination unit 950 calculates the calculated feature amount and the determination value storage unit 96.
It is determined whether or not the moving object in the video is the detection target object by comparing the determination value stored in advance with 0. In the present specification, the feature amount is
A physical quantity that can be calculated from a moving object in a video.

[0005] A moving object in an image is detected by a detection target judging unit 950.
If the display signal generation unit 970 determines that the object is a detection target object, the display signal generation unit 970 outputs the display device 99 such as an external display.
A display signal for displaying the emphasized image on the image of 0 (see FIG. 20) is generated. Here, as shown in FIG. 20, for example, characters 99 such as “Shinnu” are included in the emphasized image.
1 and a red square 993 circumscribing the moving object 992 determined as the detection target object. Display signal generator 97
When the display signal is generated by 0, a video signal from an external camera (not shown) is combined with a display signal from the display signal generation unit 970 by the video synthesis unit 980, and the external display device 990 ( 20 (see FIG. 20). Therefore, the moving object in the video is
If it is determined by 50 that the object is a detection target object, an emphasized image is displayed on the image of the external display device 990 (see FIG. 20).

When a moving object in an image is determined to be a detection target object by the detection target determination unit 950, the detection target determination unit 950 sends a detection target determination signal to an external alarm device (not shown). Since the output is performed, an alarm is issued from an external alarm device (not shown).

[0007] The adjustment of the detection performance of the detection target determination apparatus 900 has been performed by the adjuster by adjusting the determination value stored in the determination value storage unit 960. More specifically, the coordinator causes the detection target determination device 900 to actually determine whether or not the moving object in the video is the detection target object, and an external display device 990 (see FIG. 20).
While checking the image from the external camera (not shown) and the emphasized image displayed on the screen, the judgment value is adjusted based on the skill of the adjuster, such as experience and intuition, and the detection target judgment apparatus 900 Was adjusting the detection performance.

[0008]

However, in the conventional detection target determination apparatus 900, the adjustment of the determination value is performed based on the skill of the individual coordinator. However, there is a problem that it is difficult to appropriately adjust the determination value.

Accordingly, an object of the present invention is to provide a detection target determining apparatus capable of easily adjusting a determination value to an appropriate value.

[0010]

In order to solve the above-mentioned problems, a detection target determining apparatus according to the present invention comprises: an input unit for inputting information on whether a moving object is a detection target object from outside; A moving object feature amount calculating unit that calculates a feature amount of the moving object in the storage unit; a feature amount storing unit that stores the feature amount calculated during a predetermined period; and an input to the input unit after the predetermined period elapses. A determination value setting unit configured to set a determination value based on the obtained information and the feature amount stored by the feature amount storage unit, and comparing the feature amount with the determination value to perform the movement. And a detection target determination unit configured to determine whether the object is the detection target object. With this configuration, in the detection target determination device of the present invention, the determination value setting unit is calculated during a predetermined period by inputting information as to whether or not the moving object in the video is the detection target object by the adjuster. Since the judgment value is automatically set based on the feature amount, even if the judgment value is not input by the adjuster,
The determination value can be easily adjusted to an appropriate value.

[0011] In addition, the detection object determination device of the present invention includes a moving object feature amount calculating means for calculating a feature amount of a moving object in an image, and a feature amount storing means for storing the feature amount calculated during a predetermined period. A determination value setting unit configured to set a determination value after the lapse of the predetermined period, by using the feature amount stored by the feature amount storage unit as a feature amount of the detection target object;
A detection target determining unit that determines whether the moving object is the detection target object by comparing the feature amount with the determination value. With this configuration, the detection target determination device of the present invention automatically sets a determination value as a moving object in a video as a detection target object, and thus determines whether or not the moving object in the video is a detection target object. There is no need to input, and the determination value can be easily adjusted to an appropriate value.

Further, the detection target determining apparatus of the present invention comprises a moving object feature amount calculating means for calculating a feature amount of a moving object in an image, and a feature amount storing means for storing the feature amount calculated during a predetermined period. A determination value setting unit configured to set a determination value as a feature amount of an object that is not a detection target object after the lapse of the predetermined period, the feature amount stored by the feature amount storage unit; A detection target determining unit that determines whether the moving object is the detection target object by comparing the moving object with the detection object. With this configuration, the detection target determination device of the present invention automatically sets a determination value as a moving object (hereinafter, referred to as a non-detection target object) that is not a detection target object in a video, There is no need to input information as to whether the moving object is the detection target object, and the determination value can be easily adjusted to an appropriate value.

[0013] Further, the detection target determination apparatus of the present invention includes an input means for inputting information as to whether or not the moving object is a detection target object from the outside, and a moving means for calculating a characteristic amount of the moving object in the video. Object feature amount calculating means, and during a predetermined period,
A determination value setting unit configured to set a new determination value based on the calculated feature amount, the information input to the input unit, and a determination value that has already been set; A detection target determining unit that determines whether the moving object is the detection target object by comparing the moving object with the detection target. With this configuration, in the detection target determination device of the present invention, the determination value setting unit is calculated during a predetermined period by inputting information as to whether or not the moving object in the video is the detection target object by the adjuster. Since the determination value is automatically set based on the characteristic amount, the determination value can be easily adjusted to an appropriate value even if the determination value is not input by the adjuster.

Further, the detection target determination apparatus of the present invention comprises a moving object characteristic amount calculating means for calculating a characteristic amount of a moving object in a video, and a characteristic amount of the detection target object calculated during a predetermined period. As a quantity, the calculated feature amount, and a judgment value setting unit that sets a new judgment value based on the already set judgment value, by comparing the feature amount with the judgment value And a detection target determination unit that determines whether the moving object is the detection target object. With this configuration, the detection target determination device of the present invention automatically sets a determination value as a moving object in a video as a detection target object, and thus determines whether or not the moving object in the video is a detection target object. There is no need to input, and the determination value can be easily adjusted to an appropriate value.

Further, the detection target determination apparatus of the present invention includes a moving object characteristic amount calculating means for calculating a characteristic amount of a moving object in a video, and the calculated characteristic amount is not a detection target object during a predetermined period. A determination value setting unit configured to set a new determination value based on the calculated feature value and the already determined determination value as the feature value of the object; and comparing the feature value with the determination value. And a detection target determination unit configured to determine whether the moving object is the detection target object. With this configuration, the detection target determination apparatus of the present invention automatically sets a determination value as a moving object in a video as a non-detection target object, and thus determines whether or not the moving object in the video is a detection target object. Need not be input, and the determination value can be easily adjusted to an appropriate value.

Further, the detection target determining apparatus of the present invention is characterized in that it comprises a display means for simultaneously displaying the characteristic amount and the video used for calculating the characteristic amount. With this configuration, the detection target determination device of the present invention displays the feature amount of the moving object in the video at the same time as the video,
The adjuster can adjust the determination value while comparing the video with the feature amount of the moving object in the video, and can easily adjust the determination value to an appropriate value.

Further, the detection target determining apparatus of the present invention is characterized by comprising display means for displaying the characteristic amount and the video used for calculating the characteristic amount on the same screen. With this configuration, the detection target determination device of the present invention includes:
Since the adjuster can more easily compare the image with the feature amount of the moving object in the image, it is possible to more easily adjust the determination value to an appropriate value.

Further, the detection target determination apparatus of the present invention is characterized in that it comprises a superimposing means for superimposing the characteristic amount and the video used for calculating the characteristic amount on the same signal. With this configuration, the detection target determination apparatus of the present invention superimposes the video and the feature of the moving object in the video on the same signal, thereby displaying the feature of the moving object in the video simultaneously with the video on the display device. It is possible for the adjuster to adjust the determination value while comparing the video with the feature amount of the moving object in the video, and it is possible to easily adjust the determination value to an appropriate value. It is possible. In addition, by recording the superimposed signal on a recording device such as a VTR, the determination value can be adjusted to an appropriate value at an arbitrary time.

[0019]

[First Embodiment]

A description will be given of a detection target determining apparatus according to a first embodiment of the present invention.

First, the configuration of the detection target determining apparatus according to the present embodiment will be described.

In FIG. 1, a detection target determining device 100
Is an A / D converter 110 for converting an input video signal from an analog signal to a digital signal, and an A / D converter 1
A moving pixel detector 1 for detecting a moving pixel in a video image based on the video signal converted into a digital signal by the digital camera 10;
20 and a labeling processing unit 130 for distinguishing the moving pixels detected by the moving pixel detecting unit 120 for each block, that is, for each moving object.

Further, the detection target determining apparatus 100 includes a moving object feature amount calculating means for calculating feature amounts such as an area, a height, a moving speed, a moving amount, and an aspect ratio for each moving object distinguished by the labeling processing unit 130. Moving object feature amount calculation unit 140 as a determination value storage unit 150 for storing a determination value
By comparing the feature amount calculated by the moving object feature amount calculation unit 140 with the judgment value stored in advance by the judgment value storage unit 150, it is determined whether the moving object in the video is the detection target object. And a detection target determination unit 160 as a detection target determination unit for determining the determination.

The detection target determining apparatus 100 is a display for displaying an emphasized image and a feature input from the moving object feature calculating unit 140 on an image of a display device 190 (see FIG. 2) such as an external display. A display signal generation unit 170 that generates a signal and a video synthesis unit 180 that synthesizes a display signal from the display signal generation unit 170 with a video signal from an external camera (not shown) are provided. Therefore,
The display signal generating unit 170 and the video synthesizing unit 180 constitute a superimposing unit that superimposes the feature amount calculated by the moving object feature amount calculating unit 140 on the same signal as the video used for calculating the feature amount. .

Next, the operation and effect of the detection target determining apparatus according to this embodiment will be described.

When a video signal is input from an external camera (not shown) to the detection target determination apparatus 100, the input video signal is converted into an A / D converter 110 and a video synthesis unit 1.
80. When the video signal is input, the A / D converter 110 converts the input video signal from an analog signal to a digital signal capable of performing image processing, and inputs the digital signal to the moving pixel detection unit 120.

When a video signal converted into a digital signal is input, the moving pixel detection unit 120 detects a moving pixel in the video by performing processing such as background difference processing on the input video signal. Then, the detection result as shown in FIG. In FIG. 3, one square represents one pixel, and a square described as “0” is a pixel determined by the moving pixel detection unit 120 as not a moving pixel, and is described as “1”. The square that has been determined is a pixel that has been determined by the moving pixel detection unit 120 to be a moving pixel.

When the detection result as shown in FIG. 3 is input from the moving pixel detection unit 120, the labeling processing unit 130 distinguishes the moving pixel for each block, that is, for each moving object from the input detection result, For example, a classification result as shown in FIG. FIG.
In, moving objects are distinguished for each cell described as "1", "2", and "3".

When the moving pixel detection unit 120 and the labeling processing unit 130 detect a moving object from the video signal, the moving object feature value calculation unit 140 determines the area and height of the moving object based on the classification result input by the labeling processing unit 130. , The moving amount, the moving amount, the aspect ratio, and the like are calculated, and the calculated characteristic amounts are input to the detection target determining unit 160. More specifically, for example, the area of the moving object can be calculated by calculating the number of pixels of the moving object. In FIG. 4, the areas of the moving object represented by the squares described as “1”, “2”, and “3” are 6 pixels, 3 pixels, and 3 pixels, respectively. In addition, since the center of gravity of the moving object and the rectangle circumscribing the moving object as shown by a bold line in FIG. 4 are calculated from the coordinates of each pixel representing the moving object, the height, aspect ratio Can be calculated from the calculated center of gravity of the moving object or a rectangle circumscribing the moving object. In addition, the moving speed and the moving amount of the moving object are determined by holding the center of gravity of the moving object in the previous process and the center of gravity of the moving object in the previous process and the center of gravity of the moving object in the current process. Can be calculated from the difference.

When a feature value is input from the moving object feature value calculation unit 140, the detection target determination unit 160 compares the input feature value with a determination value stored in advance by the determination value storage unit 150. It is determined whether the moving object in the video is the detection target object. More specifically, a determination value is stored in the determination value storage unit 150 for each type of characteristic amount, and the detection target determination unit 160 determines the input characteristic amount for each type of characteristic amount. Value storage unit 15
It is determined whether the determination value is larger or smaller than 0, which is stored in advance, based on 0. Only when the determination criterion is satisfied for all types of feature amounts, it is determined that the moving object in the video is the detection target object. . In other words, the detection target determination unit 160 determines that the moving object in the video is a non-detection target object when any one of the types of the feature amount does not satisfy the determination criterion. For example, when the input feature value and the determination value stored in advance by the determination value storage unit 150 are values as shown in FIG. 5, the feature value does not satisfy the determination criterion at the height of the moving object. So
The detection target determination unit 160 determines that the moving object in the video is a non-detection target object.

The moving object in the video is detected
When it is determined that the object is a detection target object, the display signal generation unit 170 generates a display signal for displaying an enhanced image on an image of the external display device 190 (see FIG. 2),
The generated display signal is input to the video synthesizing unit 180. Here, as shown in FIG. 2, the emphasized image includes, for example, a character 191 such as “Shinnu”, a red square 193 circumscribing the moving object 192 determined as the detection target object, and the like. As described above, since the video signal is input from the external camera (not shown) to the video synthesizing unit 180, when the display signal is input by the display signal generating unit 170, the external camera (shown in FIG. ) Is combined with the display signal input from the display signal generation unit 170, and the synthesized video signal is output to the external display device 19.
0 (see FIG. 2).

Therefore, when the moving object in the video is determined by the detection target determining unit 160 to be the detection target object, an emphasized video is displayed on the video of the external display device 190 (see FIG. 2). Although only one moving object in the image is displayed in FIG. 2, the same processing is performed on each moving object even when there are a plurality of moving objects in the image. Further, when the moving object in the video is determined to be the non-detection target object by the detection target determination unit 160, a white rectangle circumscribing the moving object determined to be the non-detection target object may be displayed. .

When the detection target determining unit 160 determines that the moving object in the video is the detection target, it outputs a detection target determination signal to an external alarm device (not shown). Moving object is detected target determination unit 160
When it is determined that the object is a detection target object, an external alarm device (not shown) issues an alarm.

The operation and effect of the features of the present embodiment will be described below.

In the present embodiment, the display signal generation unit 170 and the video synthesizing unit 180 convert the feature amount calculated by the moving object feature amount calculation unit 140 into the same signal as the video used for calculating the feature amount. As shown in FIG. 2, the detection target determination apparatus 100 transmits the image from the external camera (not shown) and the movement in the image to the external display device 190 as shown in FIG. The feature amount 194 of the object 192 can be displayed at the same time. Therefore, the adjuster can easily adjust the determination value to an appropriate value while comparing the image from the external camera (not shown) with the feature amount 194 of the moving object 192 in the image. .

Further, since the detection target determination apparatus 100 can record the superimposed signal on a recording device such as a VTR, the adjuster can adjust the determination value to an appropriate value at an arbitrary time. It is. For example, at night, an image from an external camera (not shown) and a moving object 19 in the image are displayed.
2 is recorded in a recording device such as a VTR, and the video recorded by the recording device is reproduced in the daytime, so that the video from the external camera (not shown) and the video in the video are reproduced. The determination value can be easily adjusted to an appropriate value while comparing with the feature amount 194 of the moving object 192.

In this embodiment, the feature calculated by the moving object feature calculating unit 140 is superimposed on the same signal as the video used for calculating the feature. According to an external camera (not shown)
And the feature amount 194 of the moving object 192 in the image can be displayed at the same time, the feature amount calculated by the moving object feature amount calculation unit 140 and the image used for calculating the feature amount May be output as separate signals.

Further, in the present embodiment, as shown in FIG. 2, the feature amount calculated by the moving object feature amount calculation unit 140 is an external device for displaying an image from an external camera (not shown). Although displayed on the display device 190, according to the present invention, as shown in FIG. 6, the display device 195 is different from the external display device 190 that displays video from an external camera (not shown). May be displayed. Here, the display device 195 includes a display unit that displays the feature amount calculated by the moving object feature amount calculation unit 140 simultaneously with an image from an external camera (not shown) used for calculating the feature amount. Make up. In the case of this configuration, it is not necessary to superimpose the feature amount calculated by the moving object feature amount calculation unit 140 on the same signal as the video used for the calculation of the feature amount.
The determination value can be easily adjusted to an appropriate value while comparing an image from an external camera (not shown) displayed at 0 with the feature amount displayed on the display device 195. [Second embodiment]

A detection target determining apparatus according to a second embodiment of the present invention will be described. Note that, among the configuration and operation and effect of the detection target determination apparatus according to the present embodiment, the configuration and operation and effect substantially similar to the configuration and operation and effect of the detection target determination apparatus according to the first embodiment will be described in detail. Omitted.

First, the configuration of the detection target determining apparatus according to the present embodiment will be described.

In FIG. 7, a detection target determination device 200
A setting signal input unit 210 as an input unit to which a setting signal as information as to whether or not a moving object in a video is a detection target object from the outside, and an optimum determination value calculation unit 230 to be described later are optimal. The setting signal input by the setting signal input unit 210 and the moving object during a predetermined period (hereinafter, referred to as an automatic setting period) set in advance based on, for example, an experiment so that the determination value can be set. A feature amount storage unit 220 serving as a feature amount storage unit for storing the feature amount calculated by the feature amount calculation unit 140; a setting signal stored by the feature amount storage unit 220 after an automatic setting period has elapsed; Optimal judgment value calculation unit 230 as judgment value setting means for setting a judgment value based on the amount
And

Next, the operation and effect of the detection target determining apparatus according to this embodiment will be described.

As shown in FIG. 8, the detection target determination device 20
A value of 0 starts an automatic setting mode in which a judgment value is automatically set when, for example, a predetermined switch (not shown) is pressed by an adjuster (step S241).
When the detection target determination device 200 starts the automatic setting mode, as described in the first embodiment, the moving pixel detection unit 120 and the labeling processing unit 130 detect a moving object from the video signal (Step S242), The moving object feature amount calculation unit 140 calculates the feature amount of the detected moving object (Step S243). When the moving object feature amount calculation unit 140 calculates the feature amount of the moving object, the feature amount storage unit 220 stores the setting signal input by the setting signal input unit 210 and the feature amount calculated by the moving object feature amount calculation unit 140. Is stored (step S245). Here, the setting signal input unit 210 stores the
For example, when a predetermined switch (not shown) is pressed by the adjuster, a setting signal indicating that the moving object in the video is the detection target object is input, and the predetermined switch (not shown) is pressed by the adjuster. If the moving object in the image is not detected, a setting signal indicating that the moving object is a non-detection target object is input (step S244). The detection target determination device 200 repeats the processing from step S242 to step S245 from the start of the automatic setting mode until the automatic setting period elapses (step S246). As described above, the feature amount storage unit 220
Stores the setting signal input by the setting signal input unit 210 and the feature amount calculated by the moving object feature amount calculation unit 140 during the automatic setting period, as shown in FIG.

When the automatic setting period has elapsed since the start of the automatic setting mode, the optimum judgment value calculating section 230 determines the characteristic based on the setting signal and the characteristic amount stored by the characteristic amount storage section 220 during the automatic setting period. A histogram as shown in FIG. 10 is created for each type of quantity, and a determination value (see FIG. 10) is calculated based on the created histogram so that all detection target objects can be detected (step S24).
7). Here, since the determination value is set so that all the detection target objects can be detected, when the histogram of the detection target object and the histogram of the non-detection target object overlap each other, they are set as shown in FIG. You. In addition,
The criterion for the detection target determination unit 160 to determine that the moving object in the video is the detection target object is that the feature amount is larger than the determination value in the type of the feature amount illustrated in FIG. In the type of the indicated feature amount, the feature amount is smaller than the determination value. After calculating the determination value, the optimum determination value calculation unit 230 causes the determination value storage unit 150 to store the calculated determination value instead of the determination value stored by the determination value storage unit 150 (step S24).
8). When the processing in step S248 ends, the automatic setting mode ends (step S249).

As described above, the detection target determination device 2
00, when the setting signal indicating whether or not the moving object in the video is the detection target object is input by the adjuster, the optimal determination value calculation unit 230 performs the processing based on the feature amount calculated during the automatic setting period. Since the judgment value is set automatically,
Even if the judgment value is not input by the adjuster, the judgment value can be easily adjusted to an appropriate value.

In the above, the detection target determining apparatus 200 including the setting signal input unit 210 has been described as the detection target determining apparatus according to the present embodiment. As shown in FIG. 12, the configuration may not include the setting signal input unit 210.

Referring to FIG.
The determination value may be calculated by using all the feature amounts stored by the feature amount storage unit 220 as either one of the detection target object and the non-detection target object. Hereinafter, the operation and effect of the detection target determination device 300 will be described by taking as an example a case where a determination value is calculated using all the feature amounts stored by the feature amount storage unit 220 as the feature amounts of the detection target object. The effect of calculating the determination value using all the feature values stored by the feature value storage unit 220 as the feature values of the non-detection target object is that all the feature values stored by the feature value storage unit 220 are detected. The operation and effect are substantially the same as those in the case where the determination value is calculated as the feature amount of the target object, and thus the description is omitted.

In FIG. 13, the processing from step S341 to step S343 is performed in step S2 shown in FIG.
Since the processing is almost the same as the processing from 41 to step S243, the description is omitted. When the moving object feature amount calculation unit 140 calculates the feature amount of the moving object in step S343, the feature amount storage unit 220 stores the moving object feature amount calculation unit 14
0 is stored (step S3).
44). The detection target determination device 300 determines in step S342
Are repeated from the start of the automatic setting mode until the automatic setting period elapses (step S345).

When the automatic setting period has elapsed since the start of the automatic setting mode, the optimum judgment value calculating section 230 determines all the characteristic amounts stored by the characteristic amount storage section 220 during the automatic setting period as the characteristics of the detection target object. As the amount, a histogram as shown in FIG. 14 is created for each type of feature amount, and a determination value (see FIG. 14) is calculated based on the created histogram so that all the detection target objects can be detected (step 14). S346). The criterion for the detection target determination unit 160 to determine that the moving object in the video is the detection target object is that the feature amount is larger than the determination value in the types of the feature amounts illustrated in FIG. Optimal judgment value calculation unit 2
When calculating the determination value, the 30 stores the calculated determination value in the determination value storage unit 150 instead of the determination value stored in the determination value storage unit 150 (step S34).
7). When the processing in step S347 ends, the automatic setting mode ends (step S348).

As described above, the detection target determination device 3
When the determination value is calculated as the feature amount of the detection target object using all the feature amounts stored by the feature amount storage unit 220, the determination value is automatically set as all the moving objects in the video as the detection target object. As compared with the detection target determination apparatus 200 shown in FIG. 7, there is no need to input information as to whether the moving object in the video is the detection target object, and the determination value is easily adjusted to an appropriate value. It is possible to [Third Embodiment]

A description will be given of a detection target determining apparatus according to a third embodiment of the present invention. Note that, among the configuration, operation, and effect of the detection target determination device according to the present embodiment, the configuration and operation and effect that are substantially the same as the configuration, operation, and effect of the detection target determination device according to the second embodiment will be described in detail. Omitted.

First, the configuration of the detection target determining apparatus according to the present embodiment will be described.

In FIG. 15, a detection target determining device 400
Are the feature amounts calculated by the moving object feature amount calculation unit 140 during the automatic setting period, the setting signal input by the setting signal input unit 210, and the determination value storage unit 150
An optimal determination value calculation unit 430 is provided as a determination value setting unit that sets a new determination value based on the determination value stored by the CPU.

Next, the operation and effect of the detection target determining apparatus according to this embodiment will be described.

In FIG. 16, the processing from step S441 to step S443 is performed in step S2 shown in FIG.
Since the processes from 41 to S243 are almost the same, the description is omitted. When the moving object feature amount calculation unit 140 calculates the feature amount of the moving object in step S443, the optimal determination value calculation unit 430 calculates the feature amount calculated by the moving object feature amount calculation unit 140 and the setting signal input unit 21.
Based on the setting signal input as 0 and the determination value already stored by the determination value storage unit 150, the determination value is calculated for each type of the feature amount so that the detection target object can be detected ( Step S445). More specifically, among the feature amounts calculated by the moving object feature amount calculation unit 140, the feature amount set as the feature amount of the detection target object by the setting signal (hereinafter, referred to as detection target setting feature amount). However, when the detection target determination unit 160 determines that the determination value is the feature amount of the non-detection target object based on the determination value already stored by the determination value storage unit 150, the detection target setting feature A new determination value is calculated so that the amount is determined by the detection target determination unit 160 to be a characteristic amount of the detection target object.
Here, the setting signal input unit 210 is connected to the optimum judgment value calculation unit 4.
For example, when a predetermined switch (not shown) is pressed by the adjuster, a setting signal indicating that the moving object in the video is the detection target object is input to 30, and the predetermined switch is not pressed by the adjuster. Accordingly, a setting signal indicating that the moving object in the video is a non-detection target object is input (step S444). After calculating the judgment value, the optimum judgment value calculation unit 230 causes the judgment value storage unit 150 to store the calculated judgment value instead of the judgment value stored by the judgment value storage unit 150 (step S446).

The detection target determination device 200 proceeds to step S4
After the process from 42 to step S446 is repeated from the start of the automatic setting mode to the elapse of the automatic setting period (step S447), the automatic setting mode ends (step S448).

As described above, the detection target determination device 4
00, when the setting signal indicating whether or not the moving object in the video is the detection target object is input by the adjuster, the optimal determination value calculation unit 430 calculates the signal based on the feature amount calculated during the automatic setting period. Since the judgment value is set automatically,
Even if the judgment value is not input by the adjuster, the judgment value can be easily adjusted to an appropriate value.

In the above description, the detection target determining apparatus 400 including the setting signal input unit 210 has been described as the detection target determining apparatus according to the present embodiment. As shown in FIG. 17, the configuration may not include the setting signal input unit 210.

In FIG. 17, a detection target determination device 500
Is determined by the moving object feature value calculation unit 140, and all the feature values input to the optimal determination value calculation unit 430 are set as one of the detection target object and the non-detection target object, and the determination value is determined. What is necessary is just to calculate. Less than,
The operation and effect of the detection target determination device 500 will be described by taking as an example a case where the determination values are calculated using all the feature amounts input to the optimum determination value calculation unit 430 as the feature amounts of the detection target object. The operation effect when the determination values are calculated using all the feature amounts input to the optimum determination value calculation unit 430 as the feature amounts of the non-detection target object is the same as that of all the feature amounts input to the optimum determination value calculation unit 430. Are substantially the same as those in the case where the determination value is calculated as the feature amount of the detection target object, and the description thereof is omitted.

In FIG. 18, the processing from step S541 to step S543 is performed in step S541 shown in FIG.
Since the processing from step 441 to step S443 is almost the same, the description is omitted. In step S543,
When the moving object feature amount calculation unit 140 calculates the feature amount of the moving object, the optimal determination value calculation unit 430 saves the feature amount calculated by the moving object feature amount calculation unit 140 and the determination value storage unit 150. Based on the determination value, the determination value is calculated so that the detection target object can be detected for each type of the feature amount (step S544). More specifically, the feature value calculated by the moving object feature value calculation unit 140 is the feature value of the non-detection target object by the detection target determination unit 160 in the determination value already stored by the determination value storage unit 150. When it is determined that the detection target setting feature amount is determined by the detection target determination unit 160, the optimal determination value calculation unit 430 calculates a new determination value. The processing from step S545 to step S547 is performed from step S446 to step S44 shown in FIG.
8 is almost the same as that of FIG.

As described above, the detection target determination device 5
When the determination value is calculated using all the feature amounts input to the optimum determination value calculation unit 430 as the feature amounts of the detection target object, the determination value is automatically set to all the moving objects in the video as the detection target object. Since it is set, it is not necessary to input information as to whether or not the moving object in the video is the detection target object, as compared with the detection target determination device 400 shown in FIG. 16, and the determination value can be easily set to an appropriate value. It is possible to adjust.

Note that, in the present embodiment, the optimum judgment value calculation unit 230 operates during the automatic setting period by using the judgment value storage unit 1.
A process of calculating a new determination value based on the determination value stored by the determination value 50 and storing the calculated determination value in the determination value storage unit 150 instead of the determination value stored by the determination value storage unit 150 According to the present invention, the optimum determination value calculation unit 230 sets a new determination value based on the determination value stored by the determination value storage unit 150 during the automatic setting period. Then, another configuration may be used. For example, when the automatic setting mode starts, a value equal to the determination value stored in the determination value storage unit 150 is stored in the determination value storage unit 150 as a temporary determination value, and the optimum determination value calculation unit 230 From the start of the automatic setting mode to the elapse of the automatic setting period, a new determination value is calculated based on the temporary determination value stored by the determination value storage unit 150, and the new determination value is stored by the determination value storage unit 150. The process of storing the calculated determination value as a temporary determination value in the determination value storage unit 150 instead of the temporary determination value is repeated, and is stored by the determination value storage unit 150 when the automatic setting mode ends. Instead of the judgment value, the provisional judgment value stored by the judgment value storage unit 150 may be stored in the judgment value storage unit 150.

[0063]

As described above, according to the present invention,
It is possible to provide a detection target determination device capable of easily adjusting a determination value to an appropriate value.

[Brief description of the drawings]

FIG. 1 is a block diagram of a detection target determination device according to a first embodiment of the present invention.

FIG. 2 is a front view of a display device connected to the detection target determination device shown in FIG. 1;

FIG. 3 is a view for explaining processing of a moving pixel detection unit of the detection target determination device shown in FIG. 1;

FIG. 4 is a view for explaining processing of a labeling processing unit of the detection target determination device shown in FIG. 1;

FIG. 5 is a view for explaining processing of a detection target determination unit of the detection target determination device shown in FIG. 1;

FIG. 6 is a front view of a display device connected to a detection target determination device having a configuration different from that of the detection target determination device shown in FIG. 1;

FIG. 7 is a block diagram of a detection target determination device according to a second embodiment of the present invention.

FIG. 8 is a flowchart for explaining the operation of the detection target determination device shown in FIG. 7;

FIG. 9 is a view for explaining processing of a feature amount storage unit of the detection target determination apparatus shown in FIG. 7;

FIG. 10 is a view for explaining processing of an optimum judgment value calculation unit of the detection target judgment apparatus shown in FIG. 7;

FIG. 11 is a diagram illustrating a process of the optimum determination value calculation unit of the detection target determination device illustrated in FIG. 7 in a state different from FIG. 10;

FIG. 12 is a block diagram of a detection target determination apparatus according to a second embodiment of the present invention, which has a different configuration from the detection target determination apparatus shown in FIG. 7;

FIG. 13 is a flowchart illustrating the operation of the detection target determination device illustrated in FIG. 12;

FIG. 14 is a view for explaining processing of an optimum determination value calculation unit of the detection target determination apparatus shown in FIG. 12;

FIG. 15 is a block diagram of a detection target determination device according to a third embodiment of the present invention.

FIG. 16 is a flowchart illustrating the operation of the detection target determination device illustrated in FIG. 15;

FIG. 17 is a block diagram of a detection target determination apparatus according to a third embodiment of the present invention, which has a different configuration from the detection target determination apparatus shown in FIG. 15;

FIG. 18 is a flowchart illustrating the operation of the detection target determination device illustrated in FIG. 17;

FIG. 19 is a block diagram of a conventional detection target determination device.

20 is a front view of a display device connected to the detection target determination device shown in FIG. 19;

[Explanation of symbols]

192 Moving object 210 Setting signal input unit (input unit) 140 Moving object feature amount calculation unit (moving object feature amount calculation unit) 220 Feature amount storage unit (feature amount storage unit) 230, 430 Optimal judgment value calculation unit (judgment value setting) Means) 160 detection target determination unit (detection target determination unit) 100, 200, 300, 400, 500 detection target determination device 194 feature quantity 195 display device (display unit) 170 display signal generation unit (superimposition unit) 180 video synthesis unit ( Superimposing means)

 ──────────────────────────────────────────────────続 き Continued on front page F term (reference) 5B057 DA11 DA20 DC03 DC04 DC06 DC09 DC14 DC30 DC32 5C054 CC05 EA05 EF06 FC01 FC12 FC13 GB15 GD05 HA05 HA18 5L096 BA02 CA02 FA59 FA60 FA64 FA70 GA34 HA03 HA13 LA04

Claims (9)

[Claims] 1. An input means for externally inputting information as to whether or not a moving object is a detection target object, a moving object characteristic amount calculating means for calculating a characteristic amount of the moving object in a video, and a predetermined period A feature amount storage unit that stores the feature amount calculated therein; and, based on the information input to the input unit after the lapse of the predetermined period, based on the feature amount stored by the feature amount storage unit. A determination value setting unit that sets a determination value, and a detection target determination unit that determines whether the moving object is the detection target object by comparing the feature amount with the determination value. A detection target determination device, characterized in that: 2. A moving object feature amount calculating unit that calculates a feature amount of a moving object in a video, a feature amount storing unit that stores the feature amount calculated during a predetermined period, and after a lapse of the predetermined period, By comparing the characteristic amount stored by the characteristic amount storage unit as a characteristic amount of the detection target object with a determination value setting unit that sets a determination value, and comparing the characteristic amount with the determination value, the moving object is A detection target determination device comprising: a detection target determination unit that determines whether the object is the detection target object. 3. A moving object feature amount calculating unit that calculates a feature amount of a moving object in a video, a feature amount storing unit that stores the feature amount calculated during a predetermined period, and after a lapse of the predetermined period, By comparing the characteristic amount stored by the characteristic amount storage unit with a determination value setting unit that sets a determination value as a characteristic amount of an object that is not a detection target object, and comparing the characteristic amount with the determination value, A detection target determination device comprising: a detection target determination unit that determines whether a moving object is the detection target object. 4. An input means for externally inputting information as to whether or not a moving object is a detection target object, a moving object characteristic amount calculating means for calculating a characteristic amount of the moving object in a video, and a predetermined period A determination value setting unit that sets a new determination value based on the calculated feature amount, the information input to the input unit, and a determination value that has been set; and the feature amount. A detection target determination unit that determines whether or not the moving object is the detection target object by comparing the detection target with the determination value. 5. A moving object feature amount calculating means for calculating a feature amount of a moving object in a video, and the feature amount calculated during a predetermined period, using the calculated feature amount as a feature amount of a detection target object. And a determination value setting unit that sets a new determination value based on a determination value that has already been set, and comparing the feature amount with the determination value, whereby the moving object is the detection target object. And a detection target determining means for determining whether or not the detection target. 6. A moving object feature amount calculating means for calculating a feature amount of a moving object in a video, and the calculated feature amount is set as a feature amount of an object which is not a detection target object during a predetermined period.
Based on the calculated feature amount and the already set determination value, a determination value setting unit for setting a new determination value, and comparing the feature amount with the determination value, thereby performing the movement. A detection target determination device comprising: a detection target determination unit that determines whether an object is the detection target object. 7. The detection target determination device according to claim 1, further comprising a display unit that simultaneously displays the feature amount and an image used for calculating the feature amount. 8. The detection target determination according to claim 1, further comprising display means for displaying the feature amount and the video used for calculating the feature amount on the same screen. apparatus. 9. The detection target according to claim 1, further comprising a superimposing unit that superimposes the feature amount and a video used for calculating the feature amount on the same signal. Judgment device.