Display system

Abstract

To reduce the burden of monitoring by informing a monitoring person of the importance of each of a plurality of images by a display size or position.SOLUTION: The evaluated image acquiring unit 111 acquires the evaluated image data from the image processing apparatus 2 through the communication line 4 and the interface 13. The evaluated image data is data in which the image and the degree of importance are associated with each other. The determination unit 112 refers to the rule table 120 of the memory 12 to determine the display mode (size or position) when the evaluated image data acquired by the evaluated image acquisition unit 111 is displayed. The generation unit 113 generates form designation image data including designation for displaying the image included in the evaluated image data in the display form determined by the determination unit 112. The transmission unit 114 transmits the form designation image data generated by the generation unit 113 to the display apparatus 3 via the interface 13 and the communication line 4.SELECTED DRAWING: Figure 9

Description

[Technical Field]

[0001] The present invention relates to a display system for displaying images of a monitoring target captured by a plurality of cameras. [Background technology]

[0002] Remote monitoring systems often use multiple surveillance cameras to monitor a relatively wide area. When there are more surveillance cameras than monitors, the display area of ​​one monitor must be divided into multiple areas to display the captured images individually.

[0003] However, as the number of surveillance cameras increases dramatically, the number of divisions into which the display area of ​​a single monitor is divided also increases, and the area of ​​each division becomes smaller. If the area of ​​each division becomes too small, it becomes difficult to detect abnormalities by looking at the display on the screen.

[0004] Therefore, under normal circumstances, images captured by a surveillance camera are displayed in each of the divided areas of the screen, and if an abnormality is detected in one of the images, the display is switched so that the image is automatically displayed on the entire screen.

[0005] Patent Document 1 discloses a monitoring device that counts the frequency of display on a display unit for each surveillance camera, and displays inappropriately placed camera information on the display unit if there is a surveillance camera whose display frequency within a predetermined period of time is below a preset threshold. By using the technology described in this document, users can learn the inappropriately placed camera information from the display, and can use this information to reconsider the installation layout of surveillance cameras in the monitored area.

[0006] Patent Document 2 discloses a monitoring device that analyzes video data captured by multiple monitoring cameras, generates an alarm when an abnormality is detected, switches the screen from the normal monitoring display to the display of the captured image in which the abnormality was detected, and performs control to return to the normal monitoring display at a predetermined time after the alarm detection. The technology described in this document automatically returns to the normal monitoring display at a predetermined time even when the screen is switched from the normal monitoring display to the captured image in which the abnormality was detected, eliminating the need to manually return to the normal monitoring display. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Japanese Patent Application Laid-Open No. 2012-213124 [Patent Document 2] Japanese Patent Application Laid-Open No. 2008-148158 Summary of the Invention [Problem to be solved by the invention]

[0008] However, conventional technologies have had the problem that an image in which an abnormality is detected may occupy the entire screen, making it difficult to check other images. For example, if an image in which only a minor abnormality is detected occupies the entire screen, the monitor may lose the opportunity to check other images. Furthermore, even if an abnormality is immediately noticeable by a monitor, there may be some abnormalities that are difficult to detect using sensors, etc. Therefore, in addition to requiring that the monitor's attention be drawn to an image in which an abnormality is detected according to its importance, it is also necessary to provide the monitor with an opportunity to check even images in which no abnormality is detected.

[0009] One of the objects of the present invention is to reduce the burden on surveillance by conveying the importance of each of a plurality of images to a surveillance officer by the size or position at which they are displayed. [Means for solving the problem]

[0010] In a first aspect, the present invention provides a display system that acquires multiple images in association with their respective importance, determines the size or position of each of the images in a display area according to the importance of the image, and displays each of the images in the display area in an arrangement according to the determined size or position.

[0011] According to the display system of the first aspect, the importance of each of a plurality of images can be conveyed to the surveillance staff by the size or position at which the images are displayed, thereby reducing the surveillance burden.

[0012] In the display system of the first aspect, a configuration may be adopted as a second aspect in which the image is determined so that the higher the importance of the image, the larger the size at which the image is displayed in the display area.

[0013] According to the display system of the second aspect, the monitor can grasp the importance of the detection result of the monitoring target shown in each image based on the size of the image displayed.

[0014] In the display system of the first aspect, a configuration may be adopted as a third aspect in which the position at which the image is displayed in the display area is determined so that the higher the importance of the image, the higher or to the left it is displayed.

[0015] According to the display system of the third aspect, the monitor can grasp the importance of the detection result of the monitoring target shown in each image based on the displayed position.

[0016] In the display system of the first aspect, a configuration in which all of the images are displayed in the display area in the above arrangement may be adopted as a fourth aspect.

[0017] According to the display system of the fourth aspect, there is a possibility that an observer may notice an abnormality that has been overlooked by a sensor or the like.

[0018] In the display system of the first aspect, a configuration may be adopted as a fifth aspect in which low-importance images of the images whose importance is less than a predetermined standard are displayed in the display area in the above arrangement in a time-division manner.

[0019] According to the display system of the fifth aspect, the burden on the surveillance personnel who spend time checking low importance images is reduced. [Brief explanation of the drawings]

[0020] [Figure 1] 1 is a diagram showing the configuration of a display system 9 according to an embodiment of the present invention. [Figure 2] FIG. 2 is a block diagram showing an example of the configuration of an image processing device 2. [Figure 3] FIG. 2 is a diagram showing an example of a correspondence table 221. [Figure 4] FIG. 2 is a block diagram showing an example of the configuration of the server device 1. [Figure 5] FIG. 10 is a diagram showing an example of the configuration of a rule table 120. [Figure 6] FIG. 2 is a diagram showing an example of the configuration of a display device 3. [Figure 7] FIG. 3 is a diagram showing an example of a display area 351. [Figure 8] FIG. 2 is a diagram showing an example of the functional configuration of an image processing device 2. [Figure 9] FIG. 2 is a diagram showing an example of the functional configuration of the server device 1. [Figure 10] FIG. 2 is a diagram showing an example of the functional configuration of the display device 3. [Figure 11] 4 is a flowchart showing an example of the operation of the image processing device 2. [Figure 12] FIG. 4 is a flowchart showing an example of the operation of the server device 1. [Figure 13] FIG. 4 is a flowchart showing an example of the operation of the display device 3. [Figure 14] 10A and 10B are diagrams showing examples of images displayed at sizes determined according to importance. [Figure 15] 10A and 10B are diagrams showing examples of images displayed at positions determined according to importance. DETAILED DESCRIPTION OF THE INVENTION

[0021] <Embodiment> <Display system configuration> Fig. 1 is a diagram showing the configuration of a display system 9 according to an embodiment of the present invention. This display system 9 is a system that displays a plurality of images of a monitoring target to a monitor, and includes a server device 1, an image processing device 2, a display device 3, a communication line 4, a camera 5, and a sensor 6. In the display system 9 shown in Fig. 1, the image processing device 2, the camera 5, and the sensor 6 are installed in public transportation T. The public transportation T is, for example, a bus. In the display system 9, there may be a plurality of public transportation T.

[0022] The camera 5 is an imaging device, such as a video camera or a digital still camera, that captures images of a monitoring target inside and outside the public transportation facility T, such as a bus. The camera 5 supplies image data representing the captured image to the image processing device 2. A plurality of cameras 5 are provided in the display system 9. The monitoring target may be, for example, the boarding and alighting doors, tires, engine, control mechanism, etc. of the public transportation facility T.

[0023] The sensor 6 is a sensor that detects an abnormality occurring in the above-mentioned monitored object. When the sensor 6 detects an abnormality, it supplies the detection result to the image processing device 2. A plurality of sensors 6 are provided in the display system 9. The sensors 6 are, for example, infrared sensors, temperature sensors, tachometers, speedometers, voltmeters, ammeters, load cells, etc. The sensor 6 supplies the image processing device 2 with detection result data indicating the presence or absence of shading, temperature, number of rotations, speed, voltage value, current value, load, etc. as the result of sensing the monitored object.

[0024] The image processing device 2 is a device, such as a computer, that controls the camera 5 and the sensor 6 and acquires image data and sensing result data from them. The image processing device 2 associates the camera 5 with the sensor 6 for each monitoring target. The image processing device 2 evaluates image data showing an image captured by the camera 5 based on the sensing result data of the corresponding sensor 6 and supplies the evaluated image data to the server device 1.

[0025] The communication line 4 is a line that connects the server device 1 and the display device 3 by wire or wirelessly so that they can communicate with each other. The communication line 4 shown in Fig. 1 also connects the image processing device 2 to the server device 1 and the display device 3 wirelessly. The communication line 4 may be, for example, a LAN (Local Area Network), a WAN (Wide Area Network), the Internet, an intranet, or a combination thereof.

[0026] The server device 1 is an information processing device, such as a computer, that determines the display mode of image data supplied from the image processing device 2. The server device 1 determines the display mode of the supplied image data in accordance with an evaluation of the importance of the image data. Here, the display mode is, for example, the size or position of the image. The server device 1 supplies the image data, the display mode of which has been determined, to the display device 3.

[0027] The display device 3 is an information processing device, such as a computer, that displays the image data supplied from the server device 1 in a specified display format. The display on the display device 3 is monitored, viewed, and confirmed by an observer.

[0028] <Configuration of image processing device> Fig. 2 is a block diagram showing an example of the configuration of the image processing device 2. The image processing device 2 shown in Fig. 2 has a processor 21, a memory 22, and an interface 23. These are connected to each other via a bus, for example, so that they can communicate with each other.

[0029] The memory 22 includes a RAM (Random Access Memory), a ROM (Read Only Memory), a solid state drive, a hard disk drive, etc., and stores a computer program (hereinafter simply referred to as a program). The memory 22 also stores a correspondence table 221 that associates images with their importance.

[0030] The processor 21 controls the image processing device 2 by reading and executing a program from the memory 22. The processor 21 is, for example, a CPU (Central Processing Unit). The processor 21 may also be, for example, an FPGA (Field Programmable Gate Array), or may include an FPGA. The processor may also have an ASIC (Application Specific Integrated Circuit) or other programmable logic device, and may perform control using these.

[0031] The interface 23 is a communication circuit that connects the image processing device 2 to other external devices, etc., by wire or wirelessly. The interface 23 has an interface that complies with a peripheral standard such as USB (registered trademark) (Universal Serial Bus), and connects to various peripheral devices such as the camera 5 and the sensor 6. The interface 23 is also connected to the communication line 4 by a wireless interface of a mobile communication system that complies with an IMT standard such as IMT-Advanced or IMT-2020, and connects the image processing device 2 to the server device 1 via the communication line 4.

[0032] <Configuration of the correspondence table> FIG. 3 is a diagram showing an example of the correspondence table 221. The correspondence table 221 stores, for each monitoring target, a camera 5 that captures the monitoring target and a sensor 6 that detects an abnormality that occurs in the monitoring target, in association with each other. The correspondence table 221 has items for monitoring target ID, camera ID, and sensor ID, and associates these with each other. The monitoring target ID is identification information for identifying the monitoring target. The camera ID is identification information for identifying the camera 5. The sensor ID is identification information for identifying the sensor 6.

[0033] For example, it can be seen from this correspondence table 221 that an image captured by a camera 5 with a camera ID of "C1" is an image of a monitoring target identified by a monitoring target ID of "J1." Furthermore, it can be seen from this correspondence table 221 that the monitoring target identified by the monitoring target ID of "J1" is sensed by a sensor 6 with a sensor ID of "Z1."

[0034] <Server device configuration> Fig. 4 is a block diagram showing an example of the configuration of the server device 1. The server device 1 shown in Fig. 4 has a processor 11, a memory 12, and an interface 13. These are connected to each other via, for example, a bus so that they can communicate with each other.

[0035] The processor 11 controls the server device 1 by reading and executing a program from the memory 12. The processor 11 is, for example, a CPU. The processor 11 may also be, for example, an FPGA or may include an FPGA. The processor may also have an ASIC or other programmable logic device and perform control using these.

[0036] The interface 13 is a communication circuit that connects the server device 1 to other external devices, etc., via a wired or wireless connection. The interface 13 may communicably connect the server device 1 to various external devices, such as the server device 1 and the display device 3, via, for example, a communication line 4.

[0037] The memory 12 has a RAM, a ROM, a solid state drive, a hard disk drive, etc., and stores a program. The memory 12 shown in Fig. 4 also stores a rule table 120. The memory 12 may further store a correspondence table 121.

[0038] <Rule table structure> 5 is a diagram showing an example of the configuration of the rule table 120. This rule table 120 is a table that determines the size and position when displaying an image of a monitoring target for each level of importance of the monitoring target. For example, this rule table 120 determines the size to be "SHH" and the position to be "PHH" for an image evaluated as having a "high" level of importance.

[0039] <Display device configuration> Fig. 6 is a diagram showing an example of the configuration of the display device 3. The display device 3 shown in Fig. 6 has a processor 31, a memory 32, an interface 33, an operation unit 34, and a display unit 35. These are connected to each other via, for example, a bus so that they can communicate with each other.

[0040] The processor 31 controls the display device 3 by reading and executing a program from the memory 32. The processor 31 is, for example, a CPU. The processor 31 may also be, for example, an FPGA or may include an FPGA. The processor may also have an ASIC or other programmable logic device and perform control using these.

[0041] The memory 32 includes RAM, ROM, a solid state drive, etc., and stores programs.

[0042] The operation unit 34 includes operation buttons, a keyboard, a touch panel, a mouse, and other operators for issuing various instructions, and receives operations and sends signals according to the operation content to the processor 31. These operations include, for example, pressing keys on the keyboard and gestures on the touch panel.

[0043] Display unit 35 has a display screen such as a liquid crystal display, and displays images under the control of processor 31. A transparent touch panel of operation unit 34 may be placed on top of the display screen. In addition, a display area 351 is defined on the display screen of display unit 35.

[0044] The interface 33 is a communication circuit that connects the display device 3 to other external devices, etc., by wire or wirelessly. The interface 33 connects the display device 3 to the server device 1 via the communication line 4.

[0045] <Display area configuration> FIG. 7 is a diagram showing an example of the display area 351. In the display area 351, multiple images captured by multiple cameras 5 are displayed. The display mode shown in FIG. 7 is the display mode in a normal state. In this display mode, the importance of the images is the same, for example, "low." In this display mode, four images are displayed in areas Ra, Rb, Rc, and Rd, each of equal size and arranged in the upper left, upper right, lower left, and lower right, respectively. These arrangements may be switched periodically.

[0046] <Functional configuration of image processing device> Fig. 8 is a diagram showing an example of the functional configuration of the image processing device 2. The processor 21 of the image processing device 2 reads and executes a program stored in the memory 22, thereby functioning as an image acquisition unit 211, an importance evaluation unit 212, and a transmission unit 213 shown in Fig. 8.

[0047] The image acquisition unit 211 acquires image data representing an image of a monitoring target from the camera 5 that captured the image. The image acquisition unit 211 acquires this image data together with, for example, a camera ID that is identification information of the camera 5.

[0048] The importance evaluation unit 212 acquires sensing result data indicating the sensing result from the sensor 6 that sensed the state of the monitored object, etc. Then, this importance evaluation unit 212 evaluates the "importance" indicating the degree of abnormality of the monitored object in light of the acquired sensing result data against predetermined criteria.

[0049] The transmission unit 213 identifies the correspondence between the camera ID and the sensor ID by referring to the correspondence table 221 in the memory 22. Then, based on this correspondence, the transmission unit 213 generates "evaluated image data" by assigning the importance evaluated by the importance evaluation unit 212 to the image data acquired by the image acquisition unit 211. After generating the evaluated image data, the transmission unit 213 transmits it to the server device 1 (not shown in FIG. 8) via the interface 23 and the communication line 4.

[0050] <Functional configuration of the server device> Fig. 9 is a diagram illustrating an example of the functional configuration of the server device 1. The processor 11 of the server device 1 reads and executes a program stored in the memory 12, thereby functioning as an evaluated image acquisition unit 111, a determination unit 112, a generation unit 113, and a transmission unit 114 shown in Fig. 9.

[0051] The evaluated image acquisition unit 111 acquires the above-mentioned evaluated image data from the image processing device 2 via the communication line 4 and the interface 13. This evaluated image data is data in which an image is associated with an importance level. Therefore, the evaluated image acquisition unit 111 is an example of a configuration in which a plurality of images are acquired in association with their respective importance levels.

[0052] The determination unit 112 refers to the rule table 120 in the memory 12 and determines the display mode (specifically, size or position) when the evaluated image data acquired by the evaluated image acquisition unit 111 is displayed.

[0053] The generating unit 113 generates image data including a designation for displaying the image included in the evaluated image data in the display style determined by the determining unit 112 (referred to as style-designating image data).

[0054] The transmitting unit 114 transmits the manner-designating image data generated by the generating unit 113 to the display device 3 (not shown in FIG. 9) via the interface 13 and the communication line 4.

[0055] <Functional configuration of the display device>

[0056] Fig. 10 is a diagram showing an example of the functional configuration of the display device 3. The processor 31 of the display device 3 reads and executes a program stored in the memory 32, thereby functioning as a mode-designated image acquisition unit 311 and a display control unit 312 shown in Fig. 10.

[0057] The manner-specified image acquisition unit 311 acquires the manner-specified image data described above via the communication line 4 and the interface 33 .

[0058] The display control unit 312 controls the display unit 35 to display the image (manner specified image) indicated by the manner specified image data acquired by the manner specified image acquisition unit 311 in the display area 351 in the specified display manner.

[0059] <Operation of each component of the display system> The operations of the image processing device 2, the server device 1, and the display device 3 in the display system 9 are as follows.

[0060] <Operation of image processing device> 11 is a flow diagram showing an example of the operation of the image processing device 2. The processor 21 of the image processing device 2 acquires image data from the camera 5 via the interface 23 (step S101).

[0061] Furthermore, the processor 21 acquires sensing result data from the sensor 6 via the interface 23, and evaluates the importance of the sensing result data based on a predetermined criterion (step S102). In the operation example shown in Fig. 11, steps S101 and S102 are performed in parallel.

[0062] When there is one or more acquired image data and one or more evaluated importances, processor 21 determines whether or not there is a correspondence relationship in correspondence table 221 between the cameras 5 and sensors 6 that are the information sources of these data (step S103). If there is no correspondence relationship (step S103; NO), processor 21 returns the process to the beginning.

[0063] On the other hand, if it is determined that there is a correspondence (step S103; YES), the processor 21 generates evaluated image data in which the image data is associated with the importance (step S104), and then transmits the generated evaluated image data to the server device 1 (step S105).

[0064] <Operation of the server device> 12 is a flow diagram showing an example of the operation of the server device 1. The processor 11 of the server device 1 determines whether or not evaluated image data has been acquired from the image processing device 2 (step S201). While it is determined that evaluated image data has not been acquired (step S201; NO), the processor 11 continues this determination process.

[0065] On the other hand, when it is determined that evaluated image data has been acquired (step S201; YES), the processor 11 refers to the rule table 120 and determines a size or position according to the importance included in the acquired evaluated image data (step S202). This determined size or position becomes the size or position of the image in the display area of ​​the display unit 35 of the display device 3. In other words, this is an example of a configuration in which the processor 11 determines the size or position of an image in the display area in the display system 9 according to the importance of the image.

[0066] Then, the processor 11 generates mode designation image data that designates a display mode to display the image at the determined size or position (step S203), and transmits this to the display device 3 (step S204).

[0067] <Display device operation> 13 is a flow diagram showing an example of the operation of the display device 3. The processor 31 of the display device 3 determines whether or not the mode-designating image data has been acquired from the server device 1 (step S301). While it is determined that the mode-designating image data has not been acquired (step S301; NO), the processor 31 continues this determination process.

[0068] On the other hand, when it is determined that the manner-specifying image data has been acquired (step S301; YES), the processor 31 displays the image indicated by the image data included in the acquired manner-specifying image data in the display area 351 in the display manner included in the manner-specifying image data (step S302). As a result, the image data described above is displayed in the display area 351 in the specified display manner. Therefore, the display device 3 is an example of a configuration in the display system 9 where the images are displayed in the display area in an arrangement according to the size or position determined according to the importance of the image.

[0069] The display device 3 displays the images captured by all the cameras 5 in a display mode determined according to the evaluated importance of each image. In this case, the display system 9 having the display device 3 is an example of a display system that displays all the acquired images in the display area in an arrangement determined according to the importance of each image.

[0070] Fig. 14 is a diagram showing an example of an image displayed at a size determined according to importance. As shown in Fig. 14, the display device 3 displays four images in areas Ra, Rb, Rc, and Rd in the display area 351 of the display unit 35. In the display example shown in Fig. 14, area Ra is larger than the other three areas Rb, Rc, and Rd. This is because the image displayed in area Ra has a higher importance than the images displayed in the other areas. In other words, the image in this display example is an example of an image in which the size displayed in the display area is determined to be larger the higher the importance of the image.

[0071] By looking at this display, the observer focuses on the image displayed in the larger area Ra, making it easier to check for any abnormalities in this image. In addition, the observer unconsciously looks at the images displayed in the other three areas Rb, Rc, and Rd that are smaller than area Ra, so there is a possibility that the observer will notice any abnormalities in these images that have been overlooked by the sensor 6.

[0072] FIG. 15 is a diagram showing an example of images displayed at positions determined according to their importance. As shown in FIG. 15, the display device 3 displays four images in regions Ra, Rb, Rc, and Rd in the display region 351 of the display unit 35. In the display example shown in FIG. 15, the importance of the images is ranked by horizontal row, and each row is arranged according to a rule that the higher the position, the higher the importance. Also, in this display example, regions belonging to the same row are arranged according to a rule that the further to the left the position, the higher the importance. Therefore, for example, if the order of importance is Ra, Rb, Rc, and Rd, these are arranged along the scanning line direction indicated by the dashed arrow in FIG. 15. In other words, the image in this display example is an example of an image determined so that the higher the importance of an image, the higher or left it will be displayed in the display region.

[0073] By looking at this display, the observer checks the images displayed in each area in order along the scanning line direction indicated by the dashed arrow in Fig. 15, and can judge from the image of high importance. Even in this case, the observer will unconsciously look at the images displayed in the area of ​​low importance, and so there is a possibility that he or she will notice an abnormality that the sensor 6 has missed.

[0074] By executing the processing described above, the display system 9 according to the present invention can convey the importance of each of multiple images to the monitor by the size or position at which they are displayed, thereby reducing the burden on the monitor.

[0075] The configurations, shapes, sizes, and layout relationships described in the above embodiments are merely schematic illustrations to enable understanding and implementation of the present invention. Therefore, the present invention is not limited to the described embodiments, and can be modified in various forms without departing from the scope of the technical ideas set forth in the claims.

[0076] <Modification> The above is a description of the embodiment, but the contents of this embodiment can be modified as follows. In addition, the following modifications can be combined.

[0077] <1> In the above-described embodiment, the display device 3 displays the images captured by all the cameras 5 in a display mode corresponding to the respective evaluated importance levels. However, these images do not have to be displayed simultaneously. For example, these images may be displayed in a cyclical manner at a predetermined cycle using so-called time-sharing processing. This time-sharing display may be performed only on images whose associated importance levels do not meet a predetermined standard (referred to as low-importance images). In this case, the display system 9 is an example of a display system that displays, among the acquired images, low-importance images whose associated importance levels are below a predetermined standard in a display area using time-sharing processing, in an arrangement determined according to the importance levels of the images.

[0078] Even in this case, if the monitor monitors the display unit 35 of the display device 3 for a set period of time, he or she can check all images regardless of whether an abnormality is detected or not, and therefore may notice an abnormality that was overlooked by the sensor 6.

[0079] <2> In the above-described embodiment, each of the components realized by the processor 21 of the image processing device 2, the processor 11 of the server device 1, and the processor 31 of the display device 3 may be realized by another processor.

[0080] For example, the processor 21 of the image processing device 2 functions as the transmitter 213 that generates evaluated image data by assigning an importance level to the image data. However, the function of associating image data with its importance level may be realized in the server device 1. In this case, the server device 1 may store, for example, a correspondence table 121 shown by dashed lines in FIGS. 4 and 9 in the memory 12. This correspondence table 121 is a table containing the same content as the correspondence table 221 shown in FIG. 3, and associates camera IDs with sensor IDs for each monitored object ID. Then, upon acquiring the camera IDs and image data, and the sensor IDs and sensing result data from the image processing device 2, the server device 1 may associate them based on the correspondence table 121 to generate evaluated image data. That is, any configuration of the display system 9 may acquire multiple images in association with their respective importance levels. [Explanation of symbols]

[0081] 1...server device, 11...processor, 111...evaluated image acquisition unit, 112...determination unit, 113...generation unit, 114...transmission unit, 12...memory, 120...rule table, 121...correspondence table, 13...interface, 2...image processing device, 21...processor, 211...image acquisition unit, 212...importance evaluation unit, 213...transmission unit, 22...memory, 221...correspondence table, 23...interface, 3...display device, 31...processor, 311...mode-specified image acquisition unit, 312...display control unit, 32...memory, 33...interface, 34...operation unit, 35...display unit, 351...display area, 4...communication line, 5...camera, 6...sensor, 9...display system.

Claims

1. Acquire multiple images and associate them with their importance, determining a size or a position of the image in the display area according to the importance of the image; The images are displayed in the display area in an arrangement according to the determined size or position. Display system.

2. The image is determined so that the higher the importance of the image, the larger the size at which the image is displayed in the display area. The display system of claim 1 .

3. The higher the importance of the image, the higher or left the position at which the image is displayed in the display area is determined. The display system of claim 1 .

4. All of the images are displayed in the display area in the above arrangement. The display system of claim 1 .

5. Among the images, low importance images whose importance is less than a predetermined standard are displayed in the display area in the arrangement by time division. The display system of claim 1 .

Images