Display control device and display control program product

Abstract

The present application relates to a display control device and a display control program product. A display control device that performs control to display, on a display section, an image that represents a surrounding situation of a vehicle as viewed from a virtual viewpoint located behind the vehicle, wherein the display control device includes a display control section that performs control to display, on the display section, a vehicle image that simulates the vehicle and a division line image that simulates a division line that divides a travel lane in which the vehicle travels, and in a case where the travel lane is a curved lane, a curved start position in the division line image is changed in a depth direction in accordance with a change in the virtual viewpoint.

Description

Technical Field

[0001] This disclosure relates to display control devices and display control software products. Background Technology

[0002] Japanese Patent Application Publication No. 2022-066952 discloses a display device that displays the vehicle and other vehicles traveling in the driving lane together with the driving lane on an information display screen. Summary of the Invention

[0003] However, when displaying a dividing line image that represents a curve as viewed from a virtual viewpoint, if the starting position of the curve in the dividing line image is fixed, the leading edge of the curve may sometimes appear to be sharply bent or almost straight. In such cases, vehicle occupants may sometimes experience a sense of disharmony regarding the displayed curve.

[0004] The purpose of this disclosure is to provide a display control device and display control program that can suppress feelings of unease among vehicle occupants.

[0005] The first type of display control device controls the display unit to show an image representing the surrounding conditions of the vehicle as observed from a virtual viewpoint located behind the vehicle.

[0006] The display control device includes a display control unit.

[0007] The display control unit controls the display to show a simulated vehicle image and a simulated lane marking image of the vehicle.

[0008] When the driving lane is a curved lane, the display control unit changes the starting position of the curve in the dividing line image along the depth direction according to the change of the virtual viewpoint.

[0009] In the second type of display control device,

[0010] The change in the virtual viewpoint includes a change in position.

[0011] The closer the virtual viewpoint is to the vehicle along the horizontal direction, the more the display control unit causes the bending start position to change along the depth direction to be closer to the vehicle.

[0012] In third-party display control devices

[0013] The change in the virtual viewpoint includes a change in position.

[0014] The higher the virtual viewpoint is positioned along the vertical direction, the more the display control unit causes the bending start position to change along the depth direction, getting closer to the position of the vehicle.

[0015] In the fourth type of display control device,

[0016] The change in the virtual viewpoint includes a change in the direction of the line of sight.

[0017] The smaller the angle between the line of sight of the virtual viewpoint and the vertical direction, the more the display control unit causes the bending start position to change closer to the position of the vehicle along the depth direction.

[0018] A program product includes a display control program for causing a processor to execute a process that controls the display of an image representing the surrounding conditions of a vehicle as viewed from a virtual viewpoint located behind the vehicle, on a display unit.

[0019] Control is performed to display a simulated image of the vehicle and a simulated image of the lane markings dividing the driving lanes of the vehicle on the display unit.

[0020] When the driving lane is a curved lane, the starting position of the curve in the dividing line image changes along the depth direction according to the change of the virtual viewpoint.

[0021] According to the display control device of the first method, when the driving lane is curved, the starting position of the curve in the dividing line image changes along the depth direction according to the change of the virtual viewpoint. Therefore, the dividing line image curves from an appropriate position corresponding to the change of the virtual viewpoint, which can suppress the feeling of disharmony felt by the vehicle occupants.

[0022] According to the display control device of the second method, the closer the virtual viewpoint is to the vehicle along the horizontal direction, the closer the bending start position is to the vehicle along the depth direction. Therefore, the bending start position of the dividing line image can be appropriately adjusted to correspond to the change in the horizontal position of the virtual viewpoint.

[0023] According to the third-party display control device, the higher the virtual viewpoint is in the vertical direction, the closer the bending start position is to the vehicle in the depth direction. Therefore, the bending start position of the dividing line image can be adjusted to an appropriate position in accordance with the change in the vertical position of the virtual viewpoint.

[0024] According to the display control device of the fourth method, the smaller the angle between the viewing direction of the virtual viewpoint and the vertical direction, the closer the bending start position changes to the position of the vehicle along the depth direction. Therefore, the bending start position of the dividing line image can be appropriately adjusted to correspond to the change in the orientation of the viewing line from the virtual viewpoint.

[0025] According to this disclosure, it is possible to suppress feelings of unease among vehicle occupants. By suppressing feelings of unease among vehicle occupants, it is possible to prevent occupants from making incorrect or unnecessary interventions. Attached Figure Description

[0026] Figure 1 This is a block diagram illustrating an example of the structure of a vehicle.

[0027] Figure 2 It is a diagram that roughly shows the state of the front of the vehicle's cargo compartment as viewed from the rear side.

[0028] Figure 3 This is a diagram showing the display area of ​​the instrument display.

[0029] Figure 4 This is a block diagram illustrating an example of the hardware structure of a display control device.

[0030] Figure 5 It is a diagram used to illustrate a virtual viewpoint.

[0031] Figure 6 This is a block diagram illustrating an example of the functional structure of a display control device.

[0032] Figure 7 This is an example of a display screen.

[0033] Figure 8 This is a top-down view of the dividing line image used to illustrate the case where the driving lane is curved.

[0034] Figure 9 This is a flowchart illustrating an example of display control processing. Detailed Implementation

[0035] Hereinafter, with reference to the accompanying drawings, examples of methods for implementing this disclosure will be described in detail.

[0036] First, refer to Figure 1 This describes the vehicle 10 in this embodiment. Figure 1 This is a block diagram showing the general structure of vehicle 10. (Example) Figure 1 As shown, vehicle 10 includes a display device 21, a sensor group 30, a camera 40, and a display control device 50. These components are interconnected via an external bus (communication bus) 15.

[0037] The display device 21 displays suggestions for actions related to the functions of the vehicle 10, as well as images related to explanations of those functions. In this embodiment, the display device 21 includes a first display 24 and a second display 25. The first display 24 is an example of a "display unit" in this disclosure. Furthermore, details regarding the first display 24 and the second display 25 will be described later.

[0038] The sensor group 30 includes various sensors for detecting the status of the vehicle 10 and its surroundings. Specifically, the sensor group 30 includes 3D-LiDAR, millimeter-wave sensors, infrared sensors, turn signal sensors, throttle position sensors, shift position sensors, illuminance sensors, vehicle speed sensors, steering angle sensors, angular velocity sensors, GPS (Global Positioning System) sensors, gyroscope sensors, and accelerometers. The sensor group 30 outputs the detection results from each sensor to the display and control device 50.

[0039] Camera 40 is an imaging device that uses imaging elements such as CCD (Charge Coupled Device) image sensors or CMOS (Complementary Metal Oxide Semiconductor) image sensors to capture images. Camera 40 is positioned in front of, behind, on the left side, and on the right side of vehicle 10 to capture images of the surrounding environment. For example, images captured by camera 40 positioned in front of the vehicle are used to identify other vehicles traveling in front of the vehicle, the distance between the vehicle and other vehicles, lane markings, and traffic lights. The images captured by camera 40 are output to display control device 50. Furthermore, camera 40 can also be configured as an imaging device for other applications such as dashcams and ADAS (Advanced Driver Assistance Systems).

[0040] The display control device 50 is, for example, an ECU (Electrical Control Unit) that performs various controls.

[0041] Figure 2 This is a schematic diagram of the front of the carriage 12 inside vehicle 10, viewed from the rear side of the vehicle. Figure 2The arrow UP indicates the upper side in the vertical direction of the vehicle, and the arrow RH indicates the right side in the width direction of the vehicle. In the following explanation, the vertical and horizontal directions refer to the vertical movement of the vehicle and the width movement of the vehicle, respectively.

[0042] like Figure 2 As shown, an instrument panel 14 is provided at the front of the passenger compartment 12 in vehicle 10. The instrument panel 14 extends along the width of the vehicle, and a steering wheel 16 is provided on the right side of the instrument panel 14. That is, as an example, vehicle 10 is a right-hand steering wheel vehicle with the steering wheel 16 on the right side, and the driver's seat is located on the right side of the vehicle. However, the style of vehicle 10 is not limited to this style, and vehicle 10 can also be a left-hand steering wheel vehicle with the driver's seat on the left side.

[0043] A windshield 18 is provided at the front end of the dashboard 14. The windshield 18 extends along the vertical direction and the width direction of the vehicle, dividing the interior and exterior of the passenger compartment 12.

[0044] The windshield 18 is fixed to the right front pillar 20 of the vehicle. The front pillar 20 extends vertically along the vehicle, and the windshield 18 is fixed to the inner end of the front pillar 20 in the vehicle width direction. Additionally, the front end of the front side glass 22 is fixed to the outer end of the front pillar 20 in the vehicle width direction. Furthermore, the left end of the windshield 18 is fixed to the left front pillar of the vehicle.

[0045] Here, a first display unit 24 with an image display area V is provided in the instrument panel 14. The first display unit 24 is composed of an instrument display located on the right side of the instrument panel 14 in front of the driver's seat. The first display unit 24 is connected to various instruments mounted on the vehicle 10 and is positioned in the driver's field of vision when the driver's gaze is directed forward.

[0046] Additionally, a second display unit 25 is provided in the instrument panel 14. The second display unit 25 consists of a central display located in the center of the instrument panel 14 in the vehicle width direction.

[0047] Figure 3 This is an explanatory diagram illustrating the display area of ​​the instrument display as the display area V of the first display unit 24.

[0048] exist Figure 3 The display area V of the first display unit 24 is shown. Furthermore, in this embodiment, an image representing the vehicle 10, namely vehicle image A1 (see reference 10), is displayed in the display area X, which is part of the display area V. Figure 7 And an image showing the surrounding conditions of vehicle 10, namely a surrounding condition image. Furthermore, detailed examples of these images will be described later.

[0049] Display area X is the opening 17 of the steering wheel 16 that the driver, seated in the driver's seat, can access through (see reference). Figure 2 The area of ​​visual recognition. More specifically, such as... Figure 3 As shown, the center of the area that can be viewed from between the upper edge line L1 and the lower edge line L2 of the opening 17 is designated as the display area X. The left and right sides of the display area X within the display area V display instrument displays M1 and M2, representing the measuring instruments of the vehicle 10.

[0050] Figure 4 This is a block diagram showing the schematic structure of the display control device 50. The display control device 50 is an example of a "computer" in this disclosure.

[0051] like Figure 4 As shown, the display control device 50 is configured to include a CPU (Central Processing Unit) 51 as a hardware processor, a ROM (Read Only Memory) 52 as memory, a RAM (Random Access Memory) 53, a memory 54, a communication I / F (Interface) 55, and an input / output I / F 56. These components are communicatively connected to each other via an internal bus 57.

[0052] CPU51 executes various programs or controls various parts. That is, CPU51 reads programs from ROM52 and uses RAM53 as the working area to execute programs.

[0053] ROM52 stores various programs and data. RAM53 serves as a temporary storage area for programs or data.

[0054] The memory 54 is composed of non-transitory storage media such as eMMC (embedded Multi Media Card) or UFS (Universal Flash Storage) to store various programs and data. The memory 54 is connected to the CPU 51 via an eMMC or UFS interface.

[0055] In addition, the components of the ROM 52, memory 54, and display control device 50 are preferably media with tamper-proof properties, such as HSM (Hardware Security Module).

[0056] The Communication I / F55 is an interface used for connecting to other ECUs. This interface uses an Ethernet-based communication standard (registered trademark).

[0057] The input / output I / F56 is an interface used to communicate with onboard equipment such as the display device 21, sensor group 30, and camera 40 mounted on the vehicle 10.

[0058] Here, the ROM 52 stores a display control program 52A. The display control program 52A is a program that causes the CPU 51 to perform various processes. When this display control program 52A is executed, the display control device 50 uses... Figure 4 The structure shown executes processing based on the display control program 52A. The display control program 52A is an example of a "display control program" in this disclosure.

[0059] As an example, such as Figure 5 As shown, the display control device 50 of this embodiment performs the following control: It displays a surrounding environment image in the display area X of the first display unit 24, which is an example of a display unit. This surrounding environment image represents the surrounding environment of the vehicle 10 as observed from a virtual viewpoint P1 located behind the vehicle 10. The virtual viewpoint P1 is a viewpoint in virtual space that overlooks the vehicle 10 and its surroundings from a specific position behind and above the vehicle 10 at a specific viewpoint angle. The virtual viewpoint P1 is, for example, the position of a virtual camera. Figure 5 In the example, the two dashed lines starting from the virtual viewpoint P1 represent the viewpoint of the virtual viewpoint P1.

[0060] In this embodiment, vehicle 10 and other non-vehicle objects such as vehicles and pedestrians detected by sensor group 30 and camera 40 are mapped onto a three-dimensional virtual space. In this three-dimensional virtual space, the position of vehicle 10 is represented at its center in the vehicle width direction using an orthogonal coordinate system with the origin P2 at the point where the front end of vehicle 10 connects to the road surface. Furthermore, in this three-dimensional space, the position is represented using a three-dimensional orthogonal coordinate system with the vehicle's longitudinal direction (for example, the horizontal direction) as the X-axis, the vehicle width direction as the Y-axis, and the vehicle's vertical direction (for example, the vertical direction) as the Z-axis.

[0061] The position of the virtual viewpoint P1 is represented by the coordinates of the aforementioned three-dimensional orthogonal coordinate system. Additionally, as... Figure 5 As shown, the direction of the line of sight from virtual viewpoint P1 is represented by the angle θ between the line of sight from virtual viewpoint P1 and the vertical direction. Figure 5 In the example, the line of sight of the virtual viewpoint P1 is represented by a single-dotted arrow. The display control device 50 performs control to generate a surrounding situation image and display it in the display area X, assuming that the virtual viewpoint P1 at a specific position in the virtual space is observing the surroundings of the vehicle 10 from a specific angle θ.

[0062] However, sometimes the virtual viewpoint P1 changes. In this embodiment, changes in the virtual viewpoint P1 include changes in position and changes in the direction of the line of sight. For example, in cases where the driver can set the position and direction of the virtual viewpoint P1 in vehicle 10, the driver changes the position and direction of the virtual viewpoint P1. Additionally, for example, in cases where different positions and directions of the virtual viewpoint P1 are set for each driving mode corresponding to multiple driving support levels of vehicle 10, the driving mode changes. Specifically, in cases such as: in the manual driving mode (first driving mode), a first position and direction of the virtual viewpoint P1 are set; and in the ACC (Adaptive Cruise Control) mode (second driving mode), a second position and direction of the virtual viewpoint P1 are set. ACC mode refers to a driving mode in which a following driving support function is activated, automatically accelerating and decelerating while maintaining a pre-set distance from the preceding vehicle within a preset speed range. In this way, by setting a virtual viewpoint P1 corresponding to the driving mode, the driver who is looking at the display area X can grasp the driving mode.

[0063] Additionally, for example, in cases where the vehicle speed changes, a virtual viewpoint P1 with different positions and viewing directions is set for each of multiple vehicle speed ranges. Specifically, this includes situations where a first position and viewing direction are set for a vehicle speed within a low-speed range, and a second position and viewing direction are set for a vehicle speed within a high-speed range.

[0064] Reference Figure 6 This describes the functional structure of the display control device 50 in this embodiment. For example... Figure 6 As shown, the display control device 50 includes an acquisition unit 60 and a display control unit 62. The CPU 51 executes the display control program 52A, thereby functioning as the acquisition unit 60 and the display control unit 62.

[0065] The acquisition unit 60 acquires various types of information available in the vehicle 10. Specifically, as various types of information, the acquisition unit 60 acquires detection information such as detection results obtained by various sensors constituting the sensor group 30 and camera images obtained by the camera 40.

[0066] The display control unit 62 performs display control related to the display of the display device 21. As an example, such as... Figure 7As shown, the display control unit 62 performs the following control as part of the display control: based on the detection information acquired by the acquisition unit 60, it displays a vehicle image A1 simulating the vehicle 10 itself, a vehicle image A2 simulating a preceding vehicle traveling in front of the vehicle 10, a vehicle image A3 simulating other vehicles traveling in adjacent lanes, a road surface image A4 simulating the road surface of the lane in which the vehicle 10 is traveling, and a dividing line image A5 simulating the dividing line separating the left and right sides of the driving lane on the display area X of the first display unit 24. Vehicle image A2, vehicle image A3, road surface image A4, and dividing line image A5 are examples of surrounding condition images. Furthermore, the display control unit 62 can also control the display of these images on the second display unit 25, and can also control the display on both the first display unit 24 and the second display unit 25. Hereinafter, images simulating objects other than the vehicle 10, such as vehicle image A2 and vehicle image A3, will be referred to as "object images." Object images are not displayed if no object is detected.

[0067] Road surface image A4 is displayed in a strip shape from bottom to top in the center of the left-right direction of display area X. Furthermore, road surface image A4 is displayed with its width gradually narrowing from the bottom to the top of display area X. Dividing line image A5 is displayed on either side of road surface image A4. Dividing line image A5 is also displayed in a strip shape from the bottom to the top of display area X. Furthermore, dividing line image A5 is also displayed with its width gradually narrowing from the bottom to the top of display area X. Additionally, the width of dividing line image A5 is narrower than the width of road surface image A4. An object image is displayed at the position in display area X corresponding to the position of the detected object.

[0068] In this embodiment, the case where the driving lane is curved will be described as an example. When the driving lane is curved, the dividing line image A5 is displayed in a straight line from the lower part of the display area X to a predetermined position, from which the curve begins. Hereinafter, this predetermined position will be referred to as the "curve start position". (Refer to...) Figure 8 This section provides a detailed example of the display control processing performed by the display control unit 62 of this embodiment on the dividing line image A5 when the driving lane is a curved lane.

[0069] like Figure 8As shown, the display control unit 62 sets markers B1 to B7 for drawing the left and right dividing line image A5 in virtual space. Marker B1 is located behind the vehicle 10 and corresponds to the lower end of the display range of the display area X. Marker B2 corresponds to the origin P2. Markers B3 to B7 are located in stages in front of the vehicle 10. The position of marker B3 corresponds to the starting position of the curve. Marker B7 corresponds to the upper end of the display range of the display area X. Hereinafter, without distinguishing between markers B1 to B7, the last number of the symbol will be omitted and the term will be referred to as marker B. Furthermore, in Figure 8 The example shows the case where the distance between adjacent markers B in the X-axis direction is equal, but the distance between adjacent markers B in the X-axis direction is not limited to equal distance.

[0070] The display control unit 62 performs the following control: it generates a dividing line image A5, which is assumed to be a dividing line formed by connecting the left and right marks B1 to B7 as viewed from a virtual viewpoint P1, and displays it in the display area X. In this embodiment, the display control unit 62 changes the position of at least mark B3 along the X-axis direction according to the change of the virtual viewpoint P1. That is, when the driving lane is a curved lane, the display control unit 62 changes the starting position of the curve in the dividing line image A5 along the depth direction according to the change of the virtual viewpoint P1. The depth direction referred to here means the depth direction of the image viewed from the occupants of the vehicle 10, which corresponds to the X-axis direction of the virtual space and the vertical direction of the display area X.

[0071] In detail, the closer the virtual viewpoint P1 is to the vehicle 10 along the X-axis, the closer the display control unit 62 makes the position of the marker B3 along the X-axis is to the vehicle 10. That is, the closer the virtual viewpoint P1 is to the vehicle 10 along the X-axis, the closer the display control unit 62 makes the starting position of the curve in the dividing line image A5 along the depth direction is to the vehicle image A1.

[0072] Furthermore, the higher the virtual viewpoint P1 is in the vertical direction, the closer the display control unit 62 makes the position of the marker B3 along the X-axis is to the position of the vehicle 10. That is, the higher the virtual viewpoint P1 is in the vertical direction, the closer the display control unit 62 makes the starting position of the curve in the dividing line image A5 along the depth direction is to the position of the vehicle image A1.

[0073] Furthermore, the smaller the angle θ, the closer the position of marker B3 is to the position of vehicle 10 along the X-axis direction, as displayed by the control unit 62. That is, the smaller the angle θ, the closer the starting position of the curve in the dividing line image A5 is to the position of vehicle image A1 along the depth direction, as displayed by the control unit 62.

[0074] In addition to marker B3, the display control unit 62 also causes the positions of markers B1, B4 to B7 (other than marker B2, which corresponds to the origin P2) to change along the X-axis in the same way as marker B3. That is, marker B1, located behind the vehicle 10, and markers B3 to B7, located in front of the vehicle 10, change their positions in opposite directions along the X-axis.

[0075] For example, the display control unit 62 uses a function or other calculation formula to derive the position of the marker B corresponding to the position of the virtual viewpoint P1 and the direction of the line of sight. This function takes the position of the virtual viewpoint P1 and the angle θ as input and outputs the position of each marker B. This function satisfies the relationship between the position of the virtual viewpoint P1, the direction of the line of sight, and the bending start position. In this way, the display control unit 62 generates a dividing line image A5 that bends from the bending start position corresponding to the position and angle θ of the virtual viewpoint P1.

[0076] In addition, the display control unit 62 causes the road surface image A4 to also curve from the starting position of the curve that matches the dividing line image A5.

[0077] Reference Figure 9 This section explains the function of the display control device 50 in this embodiment. The CPU 51 executes the display control program 52A, thereby performing... Figure 9 The display control process is shown below. As an example, the display control process is executed repeatedly at predetermined time intervals.

[0078] exist Figure 9 In step S10, the acquisition unit 60 acquires detection information such as detection results from various sensors constituting the sensor group 30 and video images captured by the camera 40, as various types of information. In step S12, the display control unit 62 determines whether the virtual viewpoint P1 has changed. If the determination is positive, the process proceeds to step S14.

[0079] In step S14, the display control unit 62 outputs the position of the marker B corresponding to the position of the changed virtual viewpoint P1 and the direction of the line of sight, as described above. When step S14 ends, the process proceeds to step S16. Alternatively, if the determination in step S12 is negative, the process in step S14 is not executed, and the process proceeds to step S16.

[0080] In step S16, the display control unit 62 controls the display of the vehicle image A1 and the surrounding situation image on the display area X of the first display unit 24, as described above. In this control, the display control unit 62 generates a dividing line image A5, assuming it is a dividing line connecting the markers B at the nearest locations derived in step S14 as observed from a virtual viewpoint P1, and displays it on the display area X. When the processing of step S16 ends, the display control processing ends.

[0081] As explained above, according to this embodiment, the starting position of the curvature of the dividing line image A5 changes in response to the change in the virtual viewpoint P1. Therefore, by suppressing the dividing line image A5 from becoming a sharp curve or an almost straight line, the sense of disharmony felt by the occupants of the vehicle 10 can be reduced.

[0082] Furthermore, various processors other than the CPU can execute the various processes that the CPU 51 reads and executes in the above-described embodiments. Examples of processors in this case include FPGAs (Field-Programmable Gate Arrays) and PLDs (Programmable Logic Devices) whose circuit structure can be changed after manufacturing, as well as ASICs (Application Specific Integrated Circuits) and other processors with circuit structures specifically designed for executing specific processes, i.e., dedicated circuits. In addition, various processes can be executed by one of these various processors, or by a combination of two or more processors of the same or different types (e.g., multiple FPGAs, and a combination of a CPU and an FPGA). Furthermore, the hardware structure of these various processors is more specifically a circuit composed of circuit elements such as semiconductor elements.

[0083] Furthermore, while the above embodiment describes the display control program 52A being pre-stored (installed) in the ROM 52, it is not limited to this. The display control program 52A may also be provided in the form of a non-transitory recording medium such as a CD-ROM (Compact Disk Read Only Memory), DVD-ROM (Digital Versatile Disk Read Only Memory), or USB (Universal Serial Bus) memory. Additionally, the display control program 52A may also be downloaded from an external device via a network. Furthermore, the technology disclosed herein can also be applied to programs and program products.

[0084] The vehicle 10 of the above embodiments has been described, but it can be implemented in various ways without departing from the spirit of the present invention.

Claims

1. A display control device that controls the display of an image representing the surrounding conditions of a vehicle as viewed from a virtual viewpoint located behind the vehicle on a display unit, wherein, The display control device includes a display control unit. The display control unit controls the display to show a simulated vehicle image and a simulated lane marking image of the vehicle. When the driving lane is a curved lane, the display control unit changes the starting position of the curve in the dividing line image along the depth direction according to the change of the virtual viewpoint.

2. The display control device according to claim 1, wherein, The change in the virtual viewpoint includes a change in position. The closer the virtual viewpoint is to the vehicle along the horizontal direction, the more the display control unit causes the bending start position to change along the depth direction to be closer to the vehicle.

3. The display control device according to claim 1 or 2, wherein, The change in the virtual viewpoint includes a change in position. The higher the virtual viewpoint is positioned along the vertical direction, the more the display control unit causes the bending start position to change along the depth direction, getting closer to the position of the vehicle.

4. The display control device according to claim 1 or 2, wherein, The change in the virtual viewpoint includes a change in the direction of the line of sight. The smaller the angle between the line of sight of the virtual viewpoint and the vertical direction, the more the display control unit causes the bending start position to change closer to the position of the vehicle along the depth direction.

5. A program product comprising a display control program for controlling a processor to perform a process of displaying an image representing the surrounding conditions of a vehicle as viewed from a virtual viewpoint located behind the vehicle on a display unit, wherein, Control is performed to display a simulated image of the vehicle and a simulated image of the lane markings dividing the driving lanes of the vehicle on the display unit. When the driving lane is a curved lane, the starting position of the curve in the dividing line image changes along the depth direction according to the change of the virtual viewpoint.

Images