JP2005176076A - Camera monitoring system and its monitoring control method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a camera monitoring system finding out a past recorded video image for a monitoring target and supervising variance of color tone etc. with a television monitoring camera, without being affected by photographing condition such as weather data. <P>SOLUTION: When a video image is recorded, data for photographing such as the date and time of photographing, camera settings, weather data, and optical source condition data etc. are recorded in a file 5a of a data server 5, in addition to a video image information. During monitoring, the content in the data server 5 is retrieved to read a recorded video image similar to the present monitoring video image. Then, difference between the read-out recorded data such as optical source condition data and weather data etc. and the corresponding present data or discrepancy concerning the video image information such as difference in a monitoring camera 1 is corrected. According to the arrangement, variance of color etc. is compared with the present image correctly for monitoring. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a camera monitoring system and a monitoring control method thereof.

  There is a camera monitoring system that records surveillance camera video shot by a television camera and records operation data of the television camera at the time of video photography.

  FIG. 6 is a block diagram showing a camera monitoring system having a function of recording operation data of a conventional television camera.

  In FIG. 6, the camera monitoring system includes a camera 1x, a recording device 4x, a display processing unit 9x, and a monitor device 10x. The video signal photographed by the camera 1x is display-controlled by the display processing unit 9x and displayed on the monitor device 10x, and information on the video signal and operation data of the camera 1x are stored in the recording device 4x. .

  In such a camera monitoring system, the white balance processing of the video signal is completed inside the camera 1x, and only the information of the video signal output from the camera 1x is recorded in the recording device 4x. The video signal from 1x is automatically adjusted and displayed on the monitor device 10x. For this reason, when the video information stored in the recording device 4x is reproduced, the display processor 9x cannot perform color correction.

  In order to compensate for this drawback, the operation parameters of the video shooting conditions of the camera 1x are extracted, for example, data such as white balance is stored in the recording device 4x together with the information of the video signal, and is output from the recording device 4x later. In some cases, the display processing unit 9x interprets the above operation parameters and corrects the video (see, for example, Patent Document 1).

  In the invention described in Patent Document 1, when a still image is shot and recorded with a camera, the display processing unit records whether the flash is used at the time of shooting or whether the shooting is performed under bright conditions without using the flash. The white balance data of the video signal reproduced and output from is read out and discriminated. If necessary, the white balance data is used for image correction such as brightness and contrast of an image displayed on the monitor device.

  On the other hand, such a camera monitoring system is used, for example, for monitoring the amount of water in a river, etc., and is used for predicting dangers such as floods from the recorded weather conditions and the amount of water monitored by camera images. In such a river monitoring system, in order to predict the change in the amount of water, it is effective to judge the change in the amount of water by referring to the color of the river water that has changed color due to the upstream sediment.

  However, in conventional camera monitoring systems, even if correction is made to the video signal read from the recording device, the correction is made so that the color of the water itself changes or light and dark only by correcting the image to light and dark and the contrast is easy to see. There is a problem that can not be.

Furthermore, in a monitoring system that monitors targets that are affected by weather conditions such as rivers, a past recorded video corresponding to a database of weather conditions and the like is quickly referred to and compared with the current monitoring video. Monitoring was difficult.
Japanese Patent Laid-Open No. 7-212706 (5th page, FIG. 6)

  In the conventional camera monitoring system, in order to investigate the state change of the monitoring target, it is impossible to quickly find a past recorded video corresponding to similar weather conditions and compare it with the current monitoring video. In addition, in the conventional camera monitoring system, even if image correction is performed on past recorded video, it is only corrected to an easy-to-view video. There was a problem that the correction which can be compared with that cannot be performed.

  The present invention has been made to solve the above-described problem, and can quickly find a past record monitoring video of a monitoring target and monitor a change in color tone or the like with a television camera without being affected by shooting conditions such as weather. It is an object of the present invention to provide a camera monitoring system and a monitoring control method thereof.

In order to achieve the above object, a camera surveillance system of the present invention includes a surveillance camera,
A sensor provided in the vicinity of the monitoring camera and a video recorded by the monitoring camera with a shooting date and time are stored and stored as a recorded video, and corresponding to the recorded video, at least during the shooting of the monitoring camera Server means for accumulating and storing photographing condition data including camera setting data, light source condition data at the time of photographing detected by the sensor and meteorological data at the time of photographing, and the photographing condition data stored in the server means. Acquiring at least one shooting condition data that is the same as or similar to the set search condition, search means for acquiring the recorded video corresponding to the acquired shooting condition data, real-time video from the camera, and Display processing means for performing display control for displaying the recorded video acquired by the search means on a monitor device The display setting parameter is corrected so that at least one display setting parameter included in the photographing condition data of each of the real-time video and the recorded video is the same or approximate, and the corrected display setting parameter is the display processing unit. And a correction means for setting to the above.

  Further, the surveillance control method of the camera surveillance system of the present invention accumulates and stores the video taken by the surveillance camera in the server means as a recorded video, and at least the camera at the time of photography of the surveillance camera corresponding to the recorded video. Setting data and shooting condition data including shooting light source condition data and shooting meteorological data detected by the sensor are stored and stored, and the shooting means data stored in the server means is searched by the search means and set. And acquiring the same or similar shooting condition data as the at least one search condition, acquiring a recorded video corresponding to the acquired shooting condition data, and acquiring the real-time video from the monitoring camera and the search means When the recorded video is monitored and compared with a monitor device, the real-time video is displayed. In order to correct, at least one display setting parameter included in the shooting condition data of the recorded video obtained by the search means is corrected to be a value that is the same as or approximate to the corresponding display setting parameter of the real-time video. It is characterized by doing.

  The surveillance camera system of the present invention accumulates and records video information taken by the surveillance camera on the data server with the date and time of the photography, and also accumulates and records camera setting data, weather data, light source condition data, etc. at the time of photography. The current monitoring video and the recorded video can be compared and displayed for monitoring. Then, by correcting the influence on the video information such as the difference in weather data or the like and the difference in the captured surveillance camera, it is possible to correctly compare and monitor the change of the current video and the color.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a block diagram showing a configuration of a first embodiment of a camera monitoring system according to the present invention.

  In FIG. 1, the camera monitoring system includes a monitoring camera 1, a sensor 2, a recording unit 3, a recording unit 4, a data server 5 having a file 5a, a color sample board 11, and a monitoring control unit 50. Further includes a search unit 6, a setting unit 7, a correction unit 8, a display processing unit 9, and a monitor device 10.

  In the camera monitoring system configured as described above, a video shot by the monitoring camera 1 is stored in the recording unit 3 as a recorded video together with identification information (for example, a shooting target name) of the video, shooting date / time information, and the like. . Also, camera setting data when an image is taken by the monitoring camera 1, light source condition data acquired from the sensor 2, weather data acquired from an external host (not shown), etc. (hereinafter collectively referred to as these) (Referred to as shooting condition data) is transmitted to the recording unit 4 and stored in correspondence with the identification information of the recorded video.

  The recorded video and shooting condition data stored in the recording unit 3 and the recording unit 4 are copied and recorded as video information in the file 5 a of the data server 5 and managed by the data server 5. The monitoring control unit 50 includes a setting unit 7, a search unit 6, a correction unit 8, a display processing unit 9, and a monitor device 10, and among them, the search unit 6, the setting unit 7, the correction unit 8, and the display control unit 9. Is connected to the data server 5 via a bus or a network.

  Note that the recording unit 3 and the recording unit 4 may be built in the data server 5 or may also be used as the file 5a. Here, it demonstrates as three independent components.

  The setting unit 7 inputs and inputs the recorded video, the above-described shooting condition data readout search condition, the readout of the camera setting data, the display correction of the reproduced video, the playback condition, and the like from the video information.

  The search unit 6 reads out the recorded video and shooting condition data from the file 5 a of the data server 5 based on the input information of the setting condition from the setting unit 7 and outputs it to the display processing unit 9.

  The correction unit 8 performs collation and calculation processing of camera setting data, weather data, light source condition data, and the like according to display correction input information from the setting unit 7, and performs white balance of the video signal, image brightness, contrast, and color. At least one signal for correcting the balance and the camera aperture is output to the display processing unit 9.

  The display processing unit 9 receives the display signal related to the weather data from the search unit 6, the real-time video signal directly transmitted from the monitoring camera 1, and the recorded video from the file 5 a of the data server 5. The recorded video or real-time video is corrected according to the set correction information, and a display signal is output to the monitor device 10.

  As described above, the camera monitoring system according to this embodiment uses the date and time as the shooting conditions, the setting data (white balance correction value, aperture value, etc.) of the monitoring camera 1, and the data (illuminance, Data) and weather conditions (weather, rainfall, wind speed, etc.) are stored and recorded as video information in the file 5a of the data server 5 in correspondence with the video taken by the surveillance camera 1.

  When the recorded video stored in the file 5a of the data server 5 is reproduced and displayed for comparison with the real-time video from the monitoring camera 1, the shooting condition data is searched and the shooting condition data is the same as or similar to the search condition. And a corresponding recorded video is read out. Then, the correction condition is set from the setting unit 7 to the correction unit 8 so that the shooting conditions of the video information to be monitored are aligned between the real-time video and the recorded video. Then, the display processing unit 9 performs video signal processing based on the correction information from the correction unit 8.

  FIG. 2 is a flowchart for explaining the operation procedure of the camera monitoring system according to the first embodiment of the present invention. The operation of the camera monitoring system will be described below with reference to FIGS.

  For example, it is assumed that a torrential rain warning is generated and the monitoring person monitors the monitor device 10 and starts an operation of increasing the water from the video displayed on the monitor device 10 and confirming whether the sluice is dangerous.

  The monitoring camera 1 captures the situation of the flow of the sluice B of the river A as a monitoring target, and the video is, for example, identification information of the shooting target “1” and shooting date / time information “2002.09.0X.13: 30” At the same time, it is stored in the recording unit 3 (step s1 in FIG. 2).

  The camera setting data (for example, the camera aperture “f11”, the white balance correction value “3”, etc.) of the monitoring camera 1 when the image is taken, and the light source condition data (for example, spectral data “RGBXXX”) from the sensor 2, Illuminance data “L12”, etc., as well as meteorological data from external hosts (eg, temperature “20 ° C.”, wind speed “5 ms”, weather “rain”, precipitation “10 mm / hour”, water volume “2 m”, etc.) Stored in the unit 4 in association with the identification information (step s2 in FIG. 2).

  Here, for example, it is assumed that the river A being monitored has a collapsing portion upstream of the sluice B, and it is known that when the river A increases due to rain, it becomes a red mud flow. However, when the video of the monitor device 10 is viewed, the color of the river is brown and no change is seen, but it is assumed from the state of the sluice B whether the upstream of the river A has increased.

  Therefore, a search condition for searching for video information when the water amount is “2 m or more” in the photographing target “1” is set in the search unit 6 from the setting unit 7 of the monitoring control unit 50 (step s3 in FIG. 2).

  In accordance with this search condition, the search unit 6 accesses the data server 5 and searches for weather data from the shooting condition data stored in the file 5a. Here, the water amount “2.5 m” is retrieved from the meteorological data of the file 5a as a similar weather condition, and the heavy rain record of the shooting date “2002.3.1X.16: 00” as the weather information and the record of the time It is assumed that a video is found (step s4 in FIG. 2).

  Then, the data server 5 transmits the searched shooting object “1”, the shooting date and time “2002.3.1X.16: 00”, weather data, and the like to the search unit 6, and the search unit 6 further via a bus or the like. The data and the like are transmitted to the display processing unit 9 (step s5 in FIG. 2).

  The display processing unit 9 converts the received data of the photographing target “1” and the photographing date and time “2002.3.1X.16: 00” into a character display signal and displays it on the monitor device 10 (step s6 in FIG. 2).

  Subsequently, the monitor sets the setting unit 7 to acquire the recorded video of the shooting date “2002.3.1X.16: 00” from the file 5a of the data server 5 and output it to the display processing unit 9 (FIG. 2 step s7). The display processing unit 9 acquires the recorded video from the data server 5, reproduces and displays it on the monitor device 10, and also displays the current video (real-time video) of the monitoring camera 1 (step s8 in FIG. 2). It should be noted that the setting of the meteorological data and the recorded video acquisition search condition from the setting unit 7 to the search unit 6 may be performed simultaneously.

  Here, when the recorded image displayed on the monitor device 10 is visually observed, the color of the water of the river A is displayed darker than the original red color due to the light reflected in the sunset after rain, and is not displayed in the correct color tone. It is determined that color correction processing is necessary (step s9 in FIG. 2).

  Therefore, a command for reading from the data server 5 the light source condition data of the monitoring camera 1 when the recorded video is taken under the sunset is set in the setting unit 6 by the monitor (step s10 in FIG. 2). The search condition set in the setting unit 6 is input to the search unit 6, and the command is transmitted to the data server 5. Then, the light source condition data at the photographing date “2002.3.1X.16: 00” is read from the accumulated light source condition data from the data server 5 that has received the command (for example, spectrum data “RGBYYY”) and searched. The data is transmitted to the correction unit 8 via the unit 6 and the bus (step s11 in FIG. 2).

  The correction unit 8 calculates the difference between the two spectral data in order to obtain a recorded video equivalent to that captured by the light source corresponding to the spectral data “RGBXXX” of the current monitoring camera 1 (step s12 in FIG. 2). ). In this example, as a result, correction information (for example, “R-2”, “B + 1”) that lowers the red sensitivity and increases the blue sensitivity is generated and set in the display processing unit 9 (step s13 in FIG. 2). . Then, the recorded video on which color correction has been performed is displayed on the monitor device 10 (step s14 in FIG. 2).

  Therefore, according to the camera monitoring system of the present embodiment, the water color of the river A in the real-time video currently captured by the monitoring camera 1 is compared with the water color of the river A in the corrected recorded video. Thus, the river A can be accurately monitored, and the risk of the sluice B can be estimated from the rainfall amount upstream of the river A.

  In addition, according to the camera monitoring system of the present embodiment, weather data is retrieved from the data server 5, and recorded video to be compared such as river flooding and landslides under similar weather conditions in the past is extracted and played back. Since it can be displayed, highly reliable monitoring is possible.

  In the above description, the display processing unit 9 performs correction so as to change the display (video signal) of the recorded video, but conversely, the correction is performed so as to change the display (video signal) of the current real-time video. Also good.

  In the second embodiment, a color sample board 11 that is a reference for color reproduction display is preliminarily photographed in a part of a video of a monitoring target by the monitoring camera 1 and stored in the data server 5, and the monitoring camera 1 is replaced. Even if the image is taken under conditions of different weather and lighting conditions, the reproduction display of the color sample plate 11 is made the same, and the colors of surrounding monitoring targets are compared.

  The color sample board 11 is a shooting target on which a color, a figure, and the like serving as a reference for correcting a video signal shot by the monitoring camera 1 are drawn. Further, the color sample plate 11 is originally painted with a standard color as a reference in order to adjust so that a difference in color reproduction does not occur even in an image shot by a different monitoring camera.

  As the color sample plate 11 of the present invention, for example, a panel-shaped plate in which a metal plate is coated is used. Then, several colors, which are standard colors according to the test pattern of the color bar for broadcasting, are painted in a striped pattern, and the plurality of color sample boards 11 have a predetermined color state. Prepared to fit within standards.

  In addition, it is desirable that the paint color be processed so that it is difficult to discolor even if it is installed outdoors. However, the discoloration state is periodically compared with the color sample plate 11 of the original device and deviated from the reference value. If so, replace it with the correct one.

  As described above, when the color difference is accurately determined by the camera monitoring system, even if the light source condition data is the same, the recorded video captured when the monitoring camera is replaced has a color tone for each monitoring camera. It may be different, and it is also necessary to make corrections so that the display colors of the video are aligned. Therefore, in this embodiment, the color sample board 11 is photographed together with the image of the monitoring target photographed by the surveillance camera 1 and recorded in the file 5a of the file 5 through the recording unit 3, under different conditions. Even when comparing with the video of the monitoring target photographed in step 1, the color display state of the color sample board 11 displayed on the monitor device 10 is made uniform so that accurate color comparison of the monitoring target is possible. It is what.

  For this purpose, the video signal from the monitoring camera 1 or the color signal component of the recorded video signal is adjusted and displayed so that the color display of the recorded video of the color sample plate 11 taken with the video information to be compared is the same. .

  FIG. 3 is a flowchart illustrating the operation of the camera monitoring system according to the second embodiment. The operation of FIG. 3 is the same as that of FIG. 2 except that step s10 and subsequent steps of FIG. 2 are changed, and thus the description of the same steps is omitted.

  In FIG. 3, in the operation corresponding to step 1 in FIG. 2, the color sample board 11 is placed near the sluice B of the river A, and the video captured by the monitoring camera 1 is recorded in the file 5 a of the data server 5 via the recording unit 3. (Step s21 in FIG. 3). When the sluice B of the river A and the color sample board 11 cannot be photographed on the same screen, they are photographed as continuous images by means such as turning and zooming.

  FIG. 4 is an example of a monitoring video imaged by setting the color sample plate 11 near the sluice B. The color sample plate 11 is drawn in a pattern in which red, blue, and green reference colors drawn in a bar shape and several evaluation reference colors are continuously arranged.

  Then, it is assumed that the process proceeds to step s10 in FIG. 2 to enter a command. At this time, if the color correction is set to be performed in the manual mode based on the color sample plate 11 (when step s22 in FIG. 3 is No), for example, as described above, the shooting date and time “2002.3.1X. 16:00 ”(recorded video: 4a in FIG. 4) and the current video taken by the surveillance camera 1 (real-time video: 4b in FIG. 4) are displayed in the same color on the color sample board 11. As described above, the monitor inputs a color correction parameter (for example, “R-2.5”, “B + 1” for changing the color sensitivity) and a command from the setting unit 7 (step s23 in FIG. 3). Then, by repeating this operation, when the display color of the color sample board 11 of the recorded video and the current monitoring video is the same, the color of the river water is compared (when step s24 in FIG. 3 is Yes).

  On the other hand, when the correction of the color displayed on the color sample plate 11 is adjusted in the automatic mode (when step s22 in FIG. 3 is Yes), the monitor is displayed on the monitor device 10 by operating the setting unit 7 of the monitor. The display position 4c of the color sample plate 11 is designated (step s25 in FIG. 3). This designation signal is transmitted to the correction unit 8. The correction unit 8 reads the horizontal / vertical scanning time corresponding to the display location of the recorded color image and the color sample plate 11 of the real time video from the display position of the color sample plate 11 (step s26 in FIG. 3). Then, the amplitude components of the three primary color signals of red, blue and green are extracted from the read video signal corresponding to the horizontal / vertical scanning time (step s27 in FIG. 3).

  FIG. 5 shows the amplitude component of the red portion of the extracted three primary color signals.

  In FIG. 5, the color sample plate 11 displays amplitudes corresponding to the pattern of the five color bars, (a) corresponds to the recorded video, and (b) corresponds to the real-time video. In FIG. 5A, the amplitude is 80, 70, 60, 50, 50 for each of the five colors, and in FIG. 5B, the amplitude is 56, 49, 42, 35, 35.

  Next, the correction unit 8 obtains the difference between the amplitude components of the extracted primary video signal and the recorded video and the real-time video, and determines that the red signal amplitude of the real-time video is 70% of the recorded video (FIG. 3 step s28). Then, the correction unit 8 generates a sensitivity adjustment signal that lowers the sensitivity of the red signal processing of the recorded video by 70% so that the amplitude components of both the red signals are the same, and inputs the sensitivity adjustment signal to the display processing unit 9. By this processing, the amplitude components of the red signal in the color bar portion of the color sample plate 11 of both images output from the display processing unit 9 to the monitor device 10 are aligned with 56, 49, 42, 35, 35, and the red signal component. The playback and display of the same conditions.

  Since the reproduction and display conditions of the other blue and green signals are adjusted to the same by the same procedure, automatic correction is performed so that the colors of the color sample plates 11 of both images are displayed on the screen of the monitor device 10. (FIG. 3, step s29).

  Therefore, by this automatic correction, the color sample board 11 in both the recorded video corresponding to “2002.3.1X.16: 30” and the real-time video are displayed in the same color on the monitor device 10, so that the water of the river to be monitored is displayed. It will be possible to accurately compare the colors of the images. As a result, the color correction method using the color sample plate 11 also corrects the difference due to the influence of the light source.

  Further, according to the present invention, in both the first and second embodiments, not only the comparison between the real-time video and the recorded video is performed, but also the shooting conditions are different in order to examine the change in the past monitoring target. Of course, it may include comparing images between recorded images. That is, the search unit 6 reads a plurality of recorded videos having different shooting dates and times from the file 5 a of the data server 5. Then, the first recorded video and the second recorded video are compared and displayed on the monitor device 10. At this time, the correction unit 8 corrects so that at least one display setting parameter included in the shooting condition data of each of the first recorded video and the second recorded video has the same or approximate value, and the correction. The displayed display setting parameters are set in the display processing unit 9.

The block diagram which shows the structure of embodiment of the camera monitoring system of this invention. The flowchart which shows operation | movement of the camera monitoring system of the 1st Embodiment of this invention. The flowchart which shows the camera monitoring system operation | movement of the 2nd Embodiment of this invention. The figure which shows the monitoring image | video in the 2nd Embodiment of this invention. The figure explaining the state of the video signal which image | photographed the color sample board. The block diagram which shows the structure of embodiment of the conventional camera monitoring system.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Surveillance camera 2 Sensor 3 Recording part 4 Recording part 5 Data server 5a File 50 Monitoring control part 6 Search part
7 Setting unit 8 Correction unit 9 Display processing unit 10 Monitor device 11 Color sample board

Claims (16)

A surveillance camera,
A sensor provided in the vicinity of the surveillance camera;
The video taken by the monitoring camera is recorded and recorded as a recorded video with the shooting date and time, and at least the camera setting data at the time of shooting of the surveillance camera and the shooting detected by the sensor corresponding to the recorded video Server means for storing and storing photographing condition data including light source condition data at the time and weather data at the time of photographing;
The shooting condition data stored in the server means is searched to acquire shooting condition data that is the same as or similar to the set at least one search condition, and the recorded video corresponding to the acquired shooting condition data is acquired. Search means to obtain;
Display processing means for performing display control for displaying the real-time video from the camera and the recorded video acquired by the search means on a monitor device;
Correction is performed so that at least one display setting parameter included in the shooting condition data of each of the real-time video and the recorded video has the same or approximate value, and the corrected display setting parameter is stored in the display processing unit. A camera monitoring system comprising correction means for setting.   The camera monitoring system according to claim 1, wherein the real-time video and the recorded video are compared and displayed for monitoring.   The camera monitoring system according to claim 1, wherein the correction unit corrects at least one of white balance, luminance, contrast, color balance, and camera aperture.   2. The camera monitoring system according to claim 1, wherein the light source condition data from the sensor includes illuminance data and spectrum data.   2. The camera monitoring system according to claim 1, wherein the camera setting data from the camera includes at least one data of white balance, luminance, contrast, color balance, and camera aperture. The correction means includes
In order to correct the display of the real-time video, at least one display setting parameter included in the shooting condition data of the recorded video obtained by the search unit is the same as or approximates a corresponding display setting parameter of the real-time video. The camera monitoring system according to claim 1, wherein the camera monitoring system is corrected so as to be a value. The correction means includes
In order to correct the display of the recorded video, correction is performed so that at least one display setting parameter included in the shooting condition data of the real-time video is equal to or close to a corresponding display setting parameter of the recorded video. The camera monitoring system according to claim 1. Pre-photograph the color sample sign installed as part of the surveillance target by the surveillance camera, store the photographed image in the server means as a correction evaluation image,
The correction means includes
The camera monitoring system according to claim 1, wherein the display setting parameter is corrected so that a portion corresponding to the correction evaluation image of the real-time video and the recorded video is the same. The correction means includes
In changing the display parameter, the color sensitivity of the display processing means is increased or decreased so that the color signal intensities of the horizontal and vertical scanning times of the video signals corresponding to the correction evaluation image of the recorded video are the same. 9. The camera monitoring system according to claim 8, wherein setting is performed. A surveillance camera,
A sensor provided in the vicinity of the surveillance camera;
The video taken by the monitoring camera is recorded and recorded as a recorded video with the shooting date and time, and at least the camera setting data at the time of shooting of the surveillance camera and the shooting detected by the sensor corresponding to the recorded video Server means for storing and storing photographing condition data including light source condition data at the time and weather data at the time of photographing;
The image capturing condition data stored in the server unit is searched to acquire a plurality of image capturing condition data that is the same as or similar to the set at least one search condition, and a plurality of data corresponding to the acquired image capturing condition data. Search means for obtaining the recorded video;
Display processing means for performing display control for comparing and displaying the first recorded video and the second recorded video acquired by the search means on a monitor device;
The corrected display setting parameter is corrected so that at least one display setting parameter included in the shooting condition data of each of the first recorded video and the second recorded video has the same or approximate value. A camera monitoring system comprising: a correction unit that sets the display processing unit. Pre-photograph the color sample sign installed as part of the surveillance target by the surveillance camera, store the photographed image in the server means as a correction evaluation image,
The correction means includes
11. The camera monitoring system according to claim 10, wherein the display setting parameter is corrected so that a portion corresponding to the correction evaluation image of the first recorded video and the second recorded video is the same. The correction means includes
In the change of the display setting parameter, the display processing means so that the color signal intensities of the horizontal and vertical scanning time portions of the video signals corresponding to the correction evaluation images of the first and second recording images are the same. The camera monitoring system according to claim 10, wherein a setting for increasing / decreasing the color sensitivity is performed on the camera. The search means includes
The camera monitoring system according to claim 1, wherein the weather data is set as a search condition and the recorded video is acquired. The video recorded by the monitoring camera is stored and stored in the server means as a recorded video, and at least the camera setting data at the time of shooting of the monitoring camera and the light source condition data at the time of shooting detected by the sensor corresponding to the recorded video And shooting condition data including weather data at the time of shooting,
The retrieval unit retrieves the imaging condition data stored in the server unit, acquires the imaging condition data that is the same as or similar to the set at least one retrieval condition, and records corresponding to the acquired imaging condition data Get the video,
When the real-time video from the monitoring camera and the recorded video acquired by the search means are compared and displayed on a monitor device for monitoring, the real-time video obtained by the search means is corrected to correct the display of the real-time video. A monitoring control method for a camera monitoring system, wherein at least one display setting parameter included in the shooting condition data of a recorded video is corrected to have a value that is the same as or approximate to a corresponding display setting parameter of the real-time video . The video recorded by the monitoring camera is stored and stored in the server means as a recorded video, and at least the camera setting data at the time of shooting of the monitoring camera and the light source condition data at the time of shooting detected by the sensor corresponding to the recorded video And shooting condition data including weather data at the time of shooting,
The retrieval unit retrieves the imaging condition data stored in the server unit, acquires the imaging condition data that is the same as or similar to the set at least one retrieval condition, and records corresponding to the acquired imaging condition data Get the video,
The shooting condition data of the real-time video is corrected in order to correct the display of the recorded video when the real-time video from the monitoring camera and the recorded video acquired by the search means are compared and displayed on a monitor device. And correcting so that at least one display setting parameter included in is equal to or close to a corresponding display setting parameter of the recorded video. The video recorded by the monitoring camera is stored and stored in the server means as a recorded video, and at least the camera setting data at the time of shooting of the monitoring camera and the light source condition data at the time of shooting detected by the sensor corresponding to the recorded video And shooting condition data including weather data at the time of shooting,
The retrieval unit retrieves the imaging condition data stored in the server unit to acquire a plurality of imaging condition data that is the same as or similar to the set at least one retrieval condition, and corresponds to the acquired imaging condition data To get multiple recorded videos
In order to correct the display of the second recorded video when the first recorded video and the second recorded video acquired by the search means are compared and displayed on a monitor device, the first recorded video is corrected. A camera monitoring system, wherein at least one display setting parameter included in the shooting condition data of a recorded video is corrected so as to be equal to or approximate to a corresponding display setting parameter of the first recorded video. Monitoring control method.

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