JP4914031B2 - MOBILE BODY MEASURING DEVICE AND MOBILE BODY MEASURING METHOD - Google Patents

Description

  The present invention relates to a measuring apparatus that measures the speed, trajectory, and the like of a moving body from a captured image and a measuring method thereof.

  In order to maintain and manage structures on the road, it is necessary to grasp the environment around the road, such as the shape of the road and signs installed near the road. Therefore, the situation of the road is photographed with a video camera, and if a specific point is designated, the video data at that point is reproduced. However, in this method, it is necessary to add information indicating which point is taken to the video data. Therefore, it is necessary to input information for specifying a point while reproducing the video data after the photographing is completed.

  In order to simplify the work of associating and recording the video data and information indicating the shooting location, for example, Patent Document 1 discloses that distance information is acquired from a distance pointer during shooting, and the frame number and distance of the video data are obtained. It is described that the information processing apparatus stores information in association with each other.

Patent Document 2 describes that a plurality of segment points on a map and a section sandwiched between two segment points are set, and image data, each segment point, and a section are stored in association with each other. Yes.
By the way, there is known a measuring device that captures a vehicle traveling on a road with a video camera and measures the vehicle type and speed of the vehicle from the captured image. In this measuring apparatus, it is necessary for the measurer to discriminate the vehicle type and calculate the vehicle speed while reproducing the captured image on a video deck or the like. Therefore, when the measurement of one vehicle is completed, it is necessary to rewind the videotape to the measurement start point and perform the same measurement work for another vehicle, which causes a problem that the measurement work takes a very long time.

  When calculating the speed of the vehicle from the captured image, paste the tape on the monitor screen, set the measurement start point and the measurement end point, and fast-forward the videotape so that the vehicle to be measured starts the measurement start point. The time from passing through to the end of measurement was calculated by the measurer from the time data recorded on the videotape. As described above, since the playback position of the video tape is set manually, it is difficult to increase the measurement accuracy of the vehicle speed.

Furthermore, when verifying the measurement results, it is necessary to perform rewinding based on the time data and search for an image of the vehicle to be verified. It was.
JP-A-9-190153 JP 2002-258740 A

  The subject of this invention is improving the efficiency of the measurement operation | movement of a moving body.

The moving body measuring apparatus of the present invention is based on the premise that at least one of the speed, trajectory, and passage time of a moving body is measured , and an image storage unit that stores images obtained by capturing moving states of a plurality of moving bodies. Image reproducing means for reproducing the image stored in the image storage means, moving object specifying means for the measurer to specify the measurement position of the moving object to be measured, and the measurement position by the moving object specifying means Is associated with moving body identification information for identifying the moving body for which the measurement position is designated, and frame information of the image when the moving body is designated, and the measurement position of the moving body. Measurement information storage means for storing position information to be displayed, and display control means for displaying each measurement position of the mobile object whose measurement position has been specified by the mobile object specifying means in a display form different from other positions of the mobile object; Is provided.

  According to the present invention, it is possible to easily distinguish the position of a measured moving body from the position of an unmeasured moving body from the difference in display form. As a result, it is possible to easily determine which moving body is to be measured next, so that the efficiency of measurement work of the moving body can be improved.

Another moving body measuring apparatus of the present invention is an image that stores images obtained by capturing the moving states of a plurality of moving bodies on the premise that at least one of the speed, trajectory, and passage time of the moving body is measured. A storage means; an image reproduction means for reproducing an image stored in the image storage means; a reference point designating means for a measurer to designate a plurality of reference points on the screen as a reference for measurement; and the reference The moving body designating means for the measurer to designate the measurement position of the moving body to be measured that passes the reference line passing through the reference point designated by the point designating means, and the measurement position is designated by the moving body designating means. Each time, the frame information of the image when the moving body is specified and the position information indicating the measurement position of the moving body are associated with the moving body identification information for identifying the moving body for which the measurement position is specified. Memorized measurement information Storage means and a display for displaying the reference line on the screen and displaying each measurement position of the movable body whose measurement position has been designated by the movable body designation means in a display form different from other positions of the movable body Control means.

  According to the present invention, since it is possible to easily determine which moving body is to be measured next from the difference in display form, the measurement work of the moving body can be advanced efficiently. Further, by displaying a plurality of reference lines and specifying the position of the moving body when passing through these reference lines, the speed of the moving body can be calculated easily and accurately.

In the mobile measuring device of the invention, the display control means displays a section specified from the measurement position of the delegated, in a different display form the gauge measurement position is not specified section of the same moving object To do.
With this configuration, the moving body to be measured next can be determined from the display form, so that the efficiency of measurement work can be increased and the measurement time can be shortened.

  In the mobile body measuring apparatus according to the above invention, when any mobile body identification information stored in the measurement information storage means is designated, the display control means displays the mobile body designated by the mobile body identification information. An image to be included and each measurement position stored in association with the moving body identification information and a line connecting each measurement position are displayed on the screen.

  By configuring in this way, after measuring a mobile object, the measurement target mobile object and the line connecting the position of the measured mobile object and each measurement position can be displayed and the measurement result can be easily confirmed. Can do.

  According to the present invention, the position of a measured moving body and the position of an unmeasured moving body can be easily distinguished from the difference in display form. As a result, it is possible to easily determine which moving body is to be measured next, so that the efficiency of measurement work of the moving body can be improved.

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a basic configuration of a moving body measuring apparatus according to the present invention.
The moving body measuring apparatus 10 reproduces an image obtained by capturing a moving body such as a vehicle traveling on a road, for example, and the measurer specifies the position of the vehicle to be measured from the image, and the vehicle speed, transit time, etc. It is a device for collecting data on the vehicle type and travel lane of the vehicle.

  In FIG. 1, an image storage unit 11 stores images obtained by photographing a plurality of moving bodies. The image storage unit 11 is composed of, for example, a hard disk. The image reproduction unit 12 reproduces the image stored in the image storage unit 11. The image reproduction unit 12 is configured by, for example, an MPEG decoder that decodes image data compressed in the MPEG format.

The moving object designating unit 13 designates the position of the moving object displayed on the screen, and is configured by a mouse or the like.
The measurement information storage unit 14 is associated with the moving object identification information for identifying the moving object specified by the moving object specifying unit 13, and the measurement number information indicating the number of times of measurement and the measurement position of the moving object are Frame information for specifying the frame of the display image when specified and position information indicating the measurement position of the moving body are stored. The measurement information storage unit 14 is configured by, for example, a hard disk.

The display control unit 15 displays a plurality of measurement positions of the measured moving body in a display form different from other measurement positions of the other moving body or the same moving body.
As an example, a plurality of designated measurement positions and a line connecting these measurement positions are displayed so that a measured moving body and an unmeasured moving body can be distinguished.

Although not shown, the mobile body measuring apparatus 10 includes a type specifying unit for specifying the type of the mobile body to be measured and a reference point setting unit for setting a reference point for speed measurement.
With the captured image displayed, the measurer determines the type of the moving body (large, small, etc.), and specifies the type of moving body by operating the key corresponding to the type of the type specifying unit. be able to. Further, when a plurality of speed measurement reference points are set in advance by the reference point setting unit, a horizontal reference line passing through the set reference points is displayed on the screen.

  When performing measurement of a moving object using the moving object measuring apparatus 10 described above, an image is reproduced, an operation in which the measurer specifies the type of the moving object, and specifies the position of the moving object (for example, a mouse Click the button). When the position of the moving object is specified, the frame information (frame number, etc.) of the image displayed at that time and the position data of the moving object to be measured are identification information for identifying the moving object and the number of measurements. The measurement information is stored in the measurement information storage unit 14 in association with the measurement count information. Further, type information for designating the type of the moving body is stored in the measurement information storage unit 14 in association with the moving body identification information. An image of an arbitrary moving body can be displayed based on the position information and frame information of the moving body stored in the measurement information storage unit 14, and a traveling locus of the moving body can be displayed.

  When measuring the speed of the moving body, the position of the moving body is specified at the timing when the moving body passes the reference line. The time when the moving object passes each reference line can be obtained from the time information included in the frame information of the image, and the distance between the reference lines can be obtained from a map or the like. And the speed of the moving body can be calculated from the distance.

By performing the measurement operation as described above on each moving body, the position, type, speed, and the like of the moving body can be measured from the captured image.
Next, FIG. 2 is a block diagram of the vehicle measurement device 20 of the embodiment. The vehicle measurement device 20 stores a digital image obtained by photographing a vehicle traveling on a road in a storage device such as a hard disk, and collects information such as the vehicle speed, vehicle type, and travel lane while reproducing the image. It is.

  As shown in FIG. 2, the vehicle measurement device 20 includes a personal computer 22 having a built-in hard disk 21, a display 23, a keyboard 24, and a mouse 25. The personal computer 22 has a digital image recording / reproducing function, and can reproduce an image stored in the image storage unit 21a of the hard disk 21 and convert an analog image input from the outside into a digital image. . The personal computer 22 corresponds to image reproduction means and display control means.

  In addition, the hard disk 21 is provided with a measurement information storage unit 21b for storing a data table or the like for storing measurement data of the moving body (frame number of the image, position information of the moving body, etc.). Images can also be stored in an external hard disk 26. The vehicle measurement device 20 is not limited to the one using the personal computer 22 as described above, and may be realized as a dedicated measurement device.

  The display 23 displays an image of the moving body that is played back by the personal computer 22. The keyboard 24 is an input unit that performs setting of a reference point, designation of a reproduction position of an image, designation of a type of moving object, registration operation of measurement data, and the like.

  A mouse (corresponding to the moving object specifying means) 25 is an input unit operated when specifying the position of the moving object. When measuring the speed, the position of the moving body is specified by clicking the mouse 25 at the timing of passing through a reference line passing through a preset reference point in the horizontal direction.

3A to 3C are diagrams showing the configuration of the data tables 1 and 2 and the data registration key table 3 in which measurement data such as image numbers and coordinates are stored.
The data table 1 is a table that stores measurement data of a moving object designated by a measurer. As shown in FIG. 3A, the data table 1 includes an area 31 for storing a serial number (moving body identification information) for identifying a moving body, and a click count number indicating how many times the measurement is performed in association with the serial number. An area 32 in which (number of times of measurement) is set in advance, an area 33 in which an image number (frame number) indicating the reproduction position of the image at the time of measurement is stored, and an X coordinate on the image of the designated moving body is stored. An area 34 and an area 35 for storing the Y coordinate are provided.

  A serial number is a number uniquely assigned to a mobile object. When the measurer specifies an arbitrary mobile object on the screen, a number is assigned to the specified mobile object in turn, and that number is a serial number. 1 is stored. Then, the image number of the image including the moving body and the coordinate data of the moving body when the position of the moving body is specified are stored in the data table 1 in association with the serial number.

  After registering measurement data (serial numbers, image numbers, coordinate data) of a plurality of moving objects in the data table 1, by designating a specific serial number, an image of the moving object to which the serial numbers are assigned is captured. Can be displayed. Further, the position of the moving body with the specified serial number can be specified from the coordinate data stored in association with the serial number.

  The data table 2 is a table that stores data such as vehicle type and lane. As shown in FIG. 3B, the data table 2 includes an area 41 for storing a serial number for identifying a moving body, an area 42 for storing a vehicle type in association with the serial number, an area 43 for storing a lane, and the like. A plurality of areas for storing the data are provided. When a specific moving body is specified and the vehicle type and lane are specified, the vehicle type and lane data are registered in the data table 2 in association with the serial number of the specified moving body.

  The data registration key table 3 is a table for registering a key code for inputting a vehicle type, a lane, and the like. As shown in FIG. 3C, the data registration key table 3 has an area 52 for storing the vehicle type and lane data in association with the area 51 for storing the key codes of the function keys F1, F2,. , 53 are provided. For example, a small vehicle type data is registered in the F1 key, a large vehicle type data is registered in the F2 key, a traveling lane is registered as lane data in the F3 key, and an overtaking lane is registered as lane data in the F4 key. By operating these F1 to F4 keys, it is possible to input the vehicle type of the moving body and the lane that is running at that time.

Next, FIGS. 4 and 5 are flowcharts of the measurement process. Hereinafter, the measurement process of the moving body after setting a plurality of reference points will be described.
First, the first frame of the image stored in the hard disk 21 is displayed, and the values of the register for storing the serial number and the register for counting the number of mouse clicks are reset to the initial value “1” (FIG. 4, S11). ). Thereafter, the neutral state waiting for the occurrence of the event is maintained (S12).

  When an event for image control occurs in the neutral state in step S12, the process proceeds to step S13, where an operation for changing the reproduction position of the image, for example, an operation of the left arrow key for returning the reproduction position of the image, or the reproduction position is performed. It is detected whether or not the operation of the right arrow key for proceeding is performed (S13). Then, the playback position of the image is changed by advancing or returning the frame number of the image in accordance with the operated key (S14). Then, it returns to the neutral state of step S12.

  If an image click event occurs in the neutral state in step S12, the process proceeds to step S15 to detect a mouse click operation. If a click operation is detected, it is determined whether or not the click count is “1” (S16).

  When it is determined in step S16 that the click count is “1” (S16, YES), that is, when the first measurement position of the vehicle is designated, the process proceeds to step S17 and is currently displayed. The frame number of the image is stored in the register as a saved frame number.

Next, the frame number of the image displayed at that time is registered in the row and column corresponding to the current serial number and the current click count in the data table 1 (S18).
By the processing in step S18 described above, for example, when the serial number is “1” and the click count number is “1”, the area 33 for storing the image number of the first row and first column of the data table 1 in FIG. The frame number of the currently displayed image is registered in.

  Next, the coordinate values (X coordinate, Y coordinate) of the moving body at the clicked position are stored in the X and Y coordinates of the row and column specified by the current serial number and the current click count in the data table 1. Store in the areas 34 and 35 (S19).

  By the processing in step S19, for example, when the serial number is “1” and the click count is “1”, the X and Y coordinates of the first row and first column of the data table 1 in FIG. The X and Y coordinates of the moving body at the clicked position are registered in the areas 34 and 35 to be registered.

  Next, all coordinate values registered in the data table 1 are acquired, and the points of the acquired coordinates are displayed on the screen. When a plurality of X coordinates and Y coordinates are registered, a line connecting the points of each coordinate value is displayed (S20).

Next, the number of click counts is incremented (S21), and then the process returns to the neutral state in step S12.
If it is determined in step S16 that the click count is not "1" (S16, NO), the process proceeds to step S18, and measurement data is registered in the column of the data table specified by the click count.

  By the processing in step S18, for example, when the serial number is “1”, the click count number is “2”, and the second measurement position is designated, the first row and the second column of the data table 1 (click count number 2) The frame number of the image at that time is registered in the area 33 for storing the image number of the column corresponding to.

  Further, by the processing in step S19, for example, when the serial number is “1”, the click count is “2”, and the second measurement position is designated, the X coordinate of the first row and the second column of the data table 1, The X and Y coordinates of the moving body at the designated position are registered in the areas 34 and 35 for storing the Y coordinates.

  Through the processing in step S20, all coordinate values registered in the data table 1 are acquired, points of the acquired coordinate values are displayed on the screen, and a line connecting these points is displayed. For example, when two measurement positions are specified for a mobile object having the same serial number, the X and Y coordinate data in the first column of the row specified by the serial number of the mobile object in the data table 1 and The X and Y coordinate data in the second column are read, and each measurement position and a line connecting the measurement positions are displayed.

When a data registration event occurs in the neutral state in step S12, the process proceeds to step S22, and the key registered in the data registration key table 3 is detected.
Compare the key code of the operated key with the key code registered in the data registration key table 3, and obtain the data name (vehicle type or lane) and value (large, small, etc.) corresponding to the key code, The acquired data is registered in the area 42 for storing the vehicle type of the row designated by the serial number at that time in the data table 2 and the area 43 for storing the lane. Then, the vehicle type and lane data registered in the data table 2 are displayed on the screen.

When the measurement end event occurs in the neutral state in step S12, the process proceeds to step S31 in FIG. 5 to detect the measurement end operation, for example, enter key.
When the operation of the enter key is detected, it is determined that the measurement for one moving body has been completed, and all the contents displayed on the screen are cleared (S32). Then, the image specified by the frame number of the register storing the storage frame number is read and displayed (S33).

  The reproduction position is automatically returned to the display position of the image at the first measurement position when the measurement of one mobile object is completed by the processing in step S33 described above, so every time the mobile object to be measured is changed. It is not necessary for the measurer to perform an operation for returning the reproduction position of the image.

  Thereafter, the serial number is incremented by “1” (S34), the number of click counters is cleared, and the value is initialized to “1” (S35). After step S35, the process returns to the neutral state of step S12.

If an event for accessing the data table 1 occurs in the neutral state in step S12, the process proceeds to step S36 to detect the presence or absence of a click on the data table 1.
When the data table 1 is clicked, the sequence number of the clicked data table 1 is set in a register that stores the current sequence number. When a specific column of the data table 1 is clicked, the value (count number) of the clicked column is set as the current click count number (S37).

  Next, the image number of the clicked row (or the specified column when a column is specified) of the data table 1 is acquired, and the acquired image number is stored in the register as a storage frame number. Then, the image of the storage frame number stored in the register is displayed, all the coordinate data of each measurement position in the corresponding row of the data table 1 are read, each measurement position is displayed on the screen, and each measurement position is displayed. The connecting line is displayed (S38).

  Next, all the data (vehicle type and lane data) registered in the row designated by the current serial number of the data table 2 is acquired, and the acquired data is displayed on the screen (S39). Then, it returns to the neutral state of step S12.

  According to the above-described embodiment, when an image obtained by capturing a plurality of moving bodies is reproduced and a measurement position of an arbitrary moving body is designated, a line connecting the measurement position of the measured moving body and each measurement position is Since it is displayed in an unmeasured position of the same moving object or in a different display form from other moving objects, the measurer can easily determine which moving object should be measured next in the displayed image Can be determined. Further, when the measurement of one moving body is completed, the playback position is automatically returned to the measurement start position of the mobile body, so that it is not necessary for the measurer to perform an operation of returning the playback position.

  Furthermore, when verifying the measured data, if an arbitrary moving body stored in the data tables 1 and 2 is specified, the frame number of the image stored in association with the moving body, the measurement position of the moving body Coordinate data is acquired, an image specified by a frame number, a point indicating the measurement position of the moving object, and a line connecting each measurement position are displayed. At the same time, data indicating the vehicle type and travel lane of the moving object is displayed. Therefore, the verification can be performed while checking both the image of the moving object to be measured and the data input by the measurer, so that the efficiency of the verification work can be improved.

Next, an example of screen display when measuring a moving object while reproducing a captured image and an example of the contents of the data tables 1 and 2 at that time will be described with reference to FIGS.
6 and 7, the leftmost frame indicates the screen before the event occurs, the second column indicates the frame number of the image at that time, the third column indicates the mouse click, the function key operation, etc. The fourth column shows the serial number and the click count, the fifth column shows the contents of the data table 1 and the data table 2, and the sixth column shows the display after the event occurs. The frame in the seventh column indicates the frame number of the image after the occurrence of the event.

As shown in FIG. 6A, when the two moving bodies A and B are displayed on the display 23, the frame number of the image is “10”, and the number of click counters is “1” which is the initial value. To do.
A case where the first measurement is performed in a state where the preset reference lines n and m are displayed on the screen will be described. When the moving object A is clicked at the timing when the moving object A passes through the reference line n, the serial number “1” is assigned to the moving object A, and the number of click counters in the row where the serial number of the data table 1 is “1”. In the column “1”, the frame number “10” of the currently displayed image is registered as the image number. Further, coordinate data of a position where the moving object A is clicked is registered as coordinate data. A symbol * indicating coordinate data in the data table 1 in FIG. 6A indicates that coordinate data is registered.

  When the first measurement data (frame number, X, Y coordinate) of the moving object A is registered in the data table 1, the mouse clicks on the display screen after the event occurs, as shown in FIG. For example, the position of the moving object A is displayed as a black circle.

  Next, when the moving object A is clicked at the timing of passing the second reference line m, the frame number “50” of the image displayed at that time is displayed in the data table as shown in FIG. The number of click counters in the row where the serial number of 1 is “1” is registered as the image number of the column whose number is “2”. Further, the X and Y coordinates of the position where the moving body A is clicked for the second time are registered as the X and Y coordinates.

  When the second measurement data of the moving object A is registered in the data table 1, as shown in FIG. 6 (b), the first designated position and the second designated data are displayed on the display screen after the occurrence of the event. The positions are displayed as black circles, and a line connecting these positions is displayed.

  Next, when the operation of the F2 key is detected, as shown in FIG. 6C, “Large” is registered as the vehicle type in association with the serial number 1 in the data table 2. At this time, the registered vehicle type “large” is displayed on the display screen.

  Next, when the moving object A is clicked at the timing of passing through the third reference line p, the frame number “85” of the image displayed at that time is displayed in the data table as shown in FIG. The number of click counters in the row where the serial number of “1” is “1” is registered as the image number of the column whose number is “3”. Further, the X and Y coordinates of the position where the moving body A is clicked for the third time are registered as the X and Y coordinates.

  When the third measurement data of the moving object A is registered in the data table 1, the first designated position and the second designated data are displayed on the display screen after the event occurrence as shown in FIG. The position and the position designated for the third time are displayed as black circles, and a line connecting these positions is displayed.

  In this way, when the image is reproduced and a plurality of measurement positions of the moving object are specified, a line connecting each measurement position and each measurement position is displayed. Therefore, the position of the measured moving object and the unmeasured moving object are displayed. Therefore, it can be easily determined from the display on the screen which mobile body should be measured next. Thereby, measurement work can be advanced efficiently.

  Next, when the operation of the F3 key is detected, as shown in FIG. 6E, “travel” is registered as a lane in which the moving body A is traveling in association with the serial number 1 of the data table 2. . At this time, the registered vehicle type “large” and the lane “travel” are displayed on the display screen.

Further, when the F1 key is operated while the third measurement position is designated, “small” is registered as the vehicle type in association with the serial number 1 in the data table 2 as shown in FIG. .
When the measurement of the moving object A is completed and the enter key is operated, the click count is reset to the initial value “1”, and the stored frame number (in this case, frame number 10) stored in the register is read. And is set as the frame number of the next image to be displayed. Thereby, when the enter key is operated, an image when the measurement is started is displayed. Further, on the display screen after the enter key is operated, the display of the lines connecting the respective measurement positions and the respective measurement positions disappears, and only two moving bodies A and B are displayed.

  Next, when the playback position is changed and the image of frame number “25” is displayed and the mouse is clicked at a timing when the moving object B passes the reference line n, as shown in FIG. In addition, the serial number “2” is assigned to the mobile object B, and the number of click counters in the row with the serial number “2” in the data table 1 is “1” in the column with the image number displayed at that time. The frame number “25” is registered. Further, the X coordinate and the Y coordinate of the position where the moving body B is clicked are registered as coordinate data. A symbol * indicating coordinate data in the data table 1 of FIG. 7H indicates a state in which coordinate data is registered.

  When the first measurement data (frame number, X, Y coordinates) of the moving object B is registered in the data table 1, the mouse clicks on the display screen after the event occurs, as shown in FIG. The position of the moving body B when it is done is displayed as a black circle.

  Next, when the moving body B is clicked at the timing of passing through the second reference line m, the click count number becomes “2”, and as shown in FIG. The frame number “70” is registered as the image number of the column of the click counter number “2” in the row of the serial number “2” in the data table 1, and the position where the moving object B is clicked for the second time as the X and Y coordinates. X coordinate and Y coordinate are registered.

  When the second measurement data of the moving object B is registered in the data table 1, the position where the moving object B is first specified and the position specified the second time are indicated by black circles on the display screen after the event occurs. A line connecting the points is displayed (FIG. 7 (i)).

Next, when the operation of the F2 key is detected, “Large” is registered as the vehicle type in association with the serial number 2 in the data table 2. At this time, the registered vehicle type “large” is displayed on the screen.
When the measurement of the mobile object B is completed and the enter key is operated, the click count is reset to the initial value “1”, and the saved frame number (the frame of the image at the time of the first measurement) is saved in the register. Number) is read out, and the frame number is set as the frame number of the next image to be displayed. On the display screen after the occurrence of the event when the enter key is operated, the display of each measurement position and the line connecting them disappears, and only two mobile bodies A and B are displayed. In this case, the frame number of the image after the enter key is operated is “25” which is the frame number of the image at the time of the first measurement of the moving object B.

  As described above, during measurement of a moving object, a line connecting the measurement position of the measured moving object and each measurement position is displayed on the screen. You can easily determine if it is. Thereby, the efficiency of the measurement work of a mobile body can be improved and measurement time can be shortened. Furthermore, when the measurement is completed and the enter key is operated, the playback position is automatically returned to the position where the measurement was started, so the measurer returns the image playback position to measure another moving object. No operation is required, and work time can be reduced.

  Here, the relationship between the contents of the data tables 1 and 2 and the display image will be described with reference to FIG. FIG. 8 shows the contents and images of the data tables 1 and 2 when three measurement positions are designated for the moving object A and two measurement positions are designated for the moving object B.

  By designating an arbitrary row (serial number) or column (click count number) of the data table 1, it is possible to acquire an image at each measurement position and coordinate data of the moving body and display the image of the moving body at that time. it can.

9A to 9C are diagrams showing display images when data on the data table is designated.
When it is desired to verify the measurement data, the data tables 1 and 2 are displayed to specify the serial number of the verified moving body.

  9A, when the row of the serial number “1” (moving object A) in the data table 1 is designated, the image number in the first column of the row of the serial number “1” in the data table 1 is designated. Then, the coordinate data of each measurement position is read out. Then, as shown in FIG. 9A, the image of the first measurement position of the moving object A is displayed, the moving object A is displayed at the position of the first measurement position, and the three measurement positions are black circles. A line connecting each measurement position is displayed. At the same time, the vehicle type and lane data in the data table 2 are read, and the registered vehicle type “small” and lane “travel” are displayed.

  Next, as indicated by hatching in FIG. 9B, when the third column of the serial number 1 of the data table 1 is designated, the frame number “85” of the designated column of the data table 1 is changed to the moving object A. The coordinate data of the three measurement positions are read out, and “85” is set as the frame number of the image to be displayed. Then, as shown in FIG. 9B, an image of the third measurement position of the mobile object A is displayed, and the three measurement positions of the mobile object A, the mobile object A at the third measurement position, A line connecting the measurement positions is displayed. At the same time, the vehicle type and lane data in the data table 2 are read, and the registered vehicle type “small” and lane “travel” are displayed.

  Therefore, by designating arbitrary data on the data table 1, it is possible to display an image when the moving body A is measured, a line connecting each measurement position and the measurement position, a vehicle type, and lane data. Therefore, it is possible to verify whether or not the data input by the measurer is correct while confirming the image of the moving object to be measured. In addition, by displaying a line connecting each measurement position, it is possible to display the trajectory of the moving body.

  Next, as indicated by hatching in FIG. 9C, when the data in the first column of the serial number 2 in the data table 1 is designated, the frame number “25” in the designated column in the data table 1 is moved. The coordinate data of each measurement position of the body B is read out. Then, as shown in FIG. 9C, an image of the first measurement position of the mobile object B is displayed, two measurement positions of the mobile object B are displayed as black circles, and a line connecting the measurement positions is displayed. Is done.

  As described above, by specifying the row or column of the data table 1, it is possible to read the frame number and position data of an image of a desired moving body and display the traveling locus and measurement data of the moving body.

  In the above-described embodiment, in order to calculate the speed of the moving body, a reference point is set in advance, and a reference line passing through the set reference point is displayed on the screen. However, the reference line is not necessarily displayed. There is no need. If only the movement trajectory and time of the moving object need to be known, only the measurement position of the moving object may be specified without setting the reference line.

The present invention is not limited to the embodiment described above, and may be configured as follows, for example.
(1) The present invention is not limited to the case of measuring the speed of a vehicle traveling on a road, but can also be applied to the case of measuring the movement locus of a moving body other than a vehicle. Further, the moving body is not limited to an object such as a vehicle, and may be an event that can be read from an image, and the present invention can also be applied when measuring the occurrence time and occurrence location of an event that can be read from an image.
(2) The configuration of the data table for storing measurement data is not limited to the configuration shown in the embodiment.
(3) The display of the position of the measured moving body is not limited to the display method of displaying with a line connecting the measurement positions, and any display form such as a dotted line or a blinking display may be used.

It is a block diagram which shows the basic composition of a moving body measuring device. It is a block diagram of a vehicle measuring device. It is a figure which shows the structure of a table. It is a flowchart (the 1) of a measurement process. It is a flowchart (the 2) of a measurement process. It is the figure (the 1) which shows the content and display screen of a data table. It is the figure (the 2) which shows the content of a data table, and a display screen. It is a figure which shows the content and display image of a data table. It is a figure which shows a display image when the data of a data table are designated.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Mobile body measuring device 11 Image storage part 12 Image reproducing part 13 Type designation part 14 Measurement position designation part 15 Display control part 16 Measurement information storage part 20 Vehicle measurement apparatus

Claims (7)

In the moving body measuring apparatus that measures at least one of the speed, trajectory, and passage time of the moving body,
Image storage means for storing images obtained by photographing the moving states of a plurality of moving bodies;
Image reproduction means for reproducing an image stored in the image storage means;
A mobile object specifying means for the measurer to specify the measurement position of the mobile object to be measured;
Each time the measurement position is specified by the mobile object specifying means, the frame information of the image when the mobile object is specified is associated with the mobile object identification information for identifying the mobile object for which the measurement position is specified; Measurement information storage means for storing position information indicating the measurement position of the mobile body;
A mobile body measuring apparatus comprising: display control means for displaying each measurement position of a mobile body whose measurement position has been designated by the mobile body designating means in a display form different from other positions of the mobile body. In the moving body measuring apparatus that measures at least one of the speed, trajectory, and passage time of the moving body,
Image storage means for storing images obtained by photographing the moving states of a plurality of moving bodies;
Image reproduction means for reproducing an image stored in the image storage means;
A reference point specifying means for the measurer to specify a plurality of reference points on the screen as a reference of measurement;
A moving object specifying means for the measurer to specify the measurement position of the moving object to be measured that passes through the reference line passing through the reference point specified by the reference point specifying means;
Each time the measurement position is specified by the mobile object specifying means, the frame information of the image when the mobile object is specified is associated with the mobile object identification information for identifying the mobile object for which the measurement position is specified; Measurement information storage means for storing position information indicating the measurement position of the mobile body;
Display control means for displaying the reference line on a screen and displaying each measurement position of the mobile object whose measurement position has been specified by the mobile object specifying means in a display form different from other positions of the mobile object; A moving body measuring apparatus.   3. The mobile object measurement according to claim 1, wherein the display control means displays a section specified from each designated measurement position in a display form different from a section in which the measurement position of the same mobile object is not specified. apparatus.   When arbitrary moving body identification information stored in the measurement information storage means is designated by a measurer, the display control means moves the movement onto an image including the moving body designated by the moving body identification information. The mobile body measuring device according to claim 1 or 2, wherein a line connecting each measurement position and each measurement position indicated by each position information stored in association with the body identification information is arranged and displayed. In a measurement method for measuring at least one of the speed, trajectory, and transit time of a moving object,
Storing images of moving states of a plurality of moving bodies in an image storage means;
The image stored in the image storage means is played back by the image playback means,
Let the measurer specify the measurement position of the mobile object to be measured,
Each time the measurement position is designated, the frame information of the image when the moving body is designated is associated with the moving body identification information for identifying the moving body for which the measurement position is designated; Store the position information indicating the measurement position in the measurement information storage means,
A method for measuring a moving body, in which each measurement position of a moving body for which the measurement position has been specified is displayed in a display form different from other positions of the same moving body.   The mobile body measuring method according to claim 5, wherein a section specified from each designated measurement position is displayed in a different display form from a section in which the measurement position of the same mobile body is not specified.   When any mobile object identification information stored in the measurement information storage unit is specified, the mobile object identification information is stored in association with the mobile object identification information on an image including the mobile object specified by the mobile object identification information. The measuring method of the moving body of Claim 5 which arrange | positions and displays the line which connects each measurement position and each measurement position which each position information shown.

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