Head-up display image compensation system and method for curved windshield

Abstract

The invention discloses a head-up display image compensation system and method for a curved surface windshield, which can eliminate aberration and reduce picture distortion even in a carrier using the curved surface windshield. In addition, for the curved windshield which is possibly deformed, the imaging can be ensured to be clear without deformation, and the reduction of the display quality caused by the deformation of the curved windshield due to the environmental influence can be eliminated. The head-up display image compensation system for a curved windshield according to the present disclosure comprises: a windshield projection head-up display system; the driver eye movement tracking system can calculate eye position information of the driver; the windshield deformation detection system can obtain windshield deformation information of deformation of the curved windshield at a specific position and can generate a windshield shape model under the current condition; and the optical correction system is used for correcting image distortion and image aberration projected by the windshield projection display system.

Description

Technical Field

[0001] This disclosure relates to the windshield of an aircraft, and more specifically to a head-up display image compensation system and method for curved windshields that corrects the display projection of the curved windshield. Background Technology

[0002] A head-up display (HUD) is a device used in vehicles to provide visual information to the vehicle driver (such as a car driver or an airplane pilot). HUDs project images onto a special medium or windshield, which are then reflected or refracted into the driver's eyes, allowing the driver to observe the external environment while simultaneously obtaining vehicle data, thus increasing safety.

[0003] Taking into account the development history of head-up displays, the devices are moving towards lightweight and miniaturization. They also use the windshield of the carrier itself as a reflective medium, which simplifies the structure of the projection device, reduces the weight of the equipment, and makes the product more competitive.

[0004] However, in recent years, the application of highly curved, irregularly shaped windshields in vehicles has been expanding. Compared to traditional flat windshields, curved windshields have irregular projection surfaces, so the distance and angle from different parts of the projected image to the projector may vary, resulting in different aberrations in different parts of the projected image. Furthermore, because the area projected onto the projection surface varies depending on the unit area at different locations on the curved surface, image distortion occurs.

[0005] In addition, in a few vehicles, especially civil aircraft, where the operating environment is more demanding, the windshield may undergo slight deformation due to environmental factors during vehicle operation. Although the deformation itself may not affect the driver's ability to observe the external environment, if the windshield is used as a head-up display projection medium at this time, it will have a further impact on the display quality.

[0006] Therefore, there is an urgent need for a head-up display image compensation system and method for curved windshields that can correct the display projection on curved windshields. This would reduce or even eliminate aberrations at different parts of the projection surface during projection using a head-up display, even in vehicles using curved windshields, resulting in less image distortion. Furthermore, it could also address the degradation in display quality caused by deformation of the curved windshield due to environmental factors in vehicles operating in harsh environments. Summary of the Invention

[0007] This disclosure is made to solve the above-mentioned problems in the prior art. Its purpose is to provide a head-up display image compensation system and method for curved windshields. By correcting the display projection of the curved windshield, even in vehicles using curved windshields, aberrations generated at different parts of the projection surface during projection using a head-up display can be reduced or even eliminated, resulting in less image distortion.

[0008] Another objective of this disclosure is to provide a head-up display image compensation system and method for curved windshields. For curved windshields with large curvature, irregular surfaces, and those that may deform under conditions such as high altitude and high speed, the system corrects the display projection of the curved windshield to ensure clear and distortion-free imaging. This eliminates the decline in display quality caused by the deformation of the curved windshield due to environmental factors in vehicles operating in harsh environments.

[0009] To achieve at least one of the above objectives, this disclosure provides a head-up display image compensation system for curved windshields, characterized in that it includes: a windshield projection head-up display system for providing visual information to a driver on the curved windshield; a driver eye-tracking system for tracking the driver's eye movements, the driver eye-tracking system being able to calculate the driver's eye position spatial coordinates and gaze direction, i.e., eye position information; a windshield deformation detection system for detecting the deformation of the curved windshield, the windshield deformation detection system being able to obtain windshield deformation information of the curved windshield at a specific location and generate a windshield shape model under the current condition; and a system for compensating the... An optical correction system is described above for correcting image distortion and aberrations projected by a windshield projection display system. The optical correction system receives the driver's eye position information from the driver's eye tracking system and the current windshield shape model from the windshield deformation detection system. Based on this, it calculates the distortion of the image projected under the current projection optical path of the windshield projection display system and the curvature of the curved windshield. It then generates a distortion correction algorithm that matches the distortion of the curved windshield and designs and adjusts the optical path of the windshield projection display system to form the optimal reflective optical path of the windshield, and transmits it to the windshield projection display system.

[0010] Furthermore, the optical correction system adjusts the correction lens located in the light-emitting area of ​​the light path of the windshield projection display system according to the calculated optimal reflective light path of the windshield, in order to correct image aberrations.

[0011] Preferably, the driver eye-tracking system includes: an eye-tracking device, which can be installed on the front of the cockpit and is responsible for capturing image information of the driver's eye position and gaze direction; and an eye position analysis module, which calculates the driver's eye position information based on the aforementioned image information sent by the eye-tracking device and transmits it to the windshield deformation detection system and the optical correction system, respectively.

[0012] In addition, preferably, the windshield deformation detection system includes: a windshield deformation detection unit, which detects the deformation of the curved windshield at a specific location, i.e., windshield deformation information; and a windshield deformation calculation module, which generates a windshield shape model under the current condition based on the windshield deformation information, the initial shape model of the windshield, and the windshield material information transmitted from the windshield deformation detection unit, and transmits it to the optical correction system.

[0013] More preferably, the windshield deformation detection unit is a deformation sensor disposed on the edge of the curved windshield, used to monitor the deformation of each point on the edge of the curved windshield in real time. Alternatively, calibration points are set on the inner surface of the curved windshield, and the windshield deformation detection unit is a sensing device disposed inside the cockpit, used to sense the change in the interval distance between the calibration points.

[0014] In addition, preferably, the optical correction system includes: an image correction calculation module that generates the distortion correction algorithm; and a correction lens, which is a single lens or a combination of multiple optical components, used to adjust the light output direction of the windshield projection display system according to the optical path design adjustment generated by the image correction calculation module, so as to compensate for aberrations.

[0015] More preferably, the windshield projection head-up display system includes: a display information acquisition unit for acquiring information needed by the driver; an image generation unit for forming an image; and an optical path, wherein the image is projected onto the curved windshield through the optical path 530 and via the correction lens, and the image generation unit corrects the distortion of the formed image according to the distortion correction algorithm provided by the image correction calculation module.

[0016] This disclosure also provides a head-up display image compensation method for curved windshields, which uses the head-up display image compensation system for curved windshields according to any one of claims 1 to 8 to correct the display projection of the curved windshield. The head-up display image compensation method includes: a step of obtaining the driver's eye position and gaze direction image information by a driver eye-tracking system through an eye-tracking device; a step of detecting the current deformation of the curved windshield by a windshield deformation detection system to generate a current windshield shape model; and a step of calculating the current required windshield projection display system on the curved windshield based on the driver's eye position information provided by the driver eye-tracking system. The steps include: positioning the windshield projection area for image projection onto the windshield; generating a distortion correction algorithm by an optical correction system based on the current windshield shape model provided by the windshield deformation detection system and the position of the windshield projection area, and designing and adjusting the optical path of the windshield projection display system to form the optimal reflective optical path of the windshield; receiving the distortion correction algorithm provided by the optical correction system, the windshield projection display system corrects the distortion of the projected image and generates a distortion-compensated image; and adjusting the correction lens located at the light-emitting area of ​​the optical path of the windshield projection display system according to the calculated optimal reflective optical path of the windshield to eliminate aberrations caused by the curvature of the curved windshield.

[0017] Furthermore, the distortion correction algorithm is calculated and generated by using the current driver's eye position, the position of the windshield area to be projected by the windshield projection display system and the shape of the current position of the windshield area, as well as the position and direction of the light-emitting surface of the windshield projection display system, to generate a light path plan and projection direction that match the scene requirements, and to generate an algorithm to eliminate the distortion of the projected image based on the curved shape of the target area of ​​the curved windshield.

[0018] Based on the above-described configuration, the head-up display image compensation system and method of this disclosure are applicable to curved windshields. More specifically, by installing an eye-tracking device at the front of the cockpit (e.g., at the top of the windshield), image information of the driver's eye position and gaze direction is acquired in real time. The driver's gaze point on the windshield at the current time point is calculated in real time. The curvature and tilt information of the windshield at the current position are obtained through a pre-stored curved windshield model and provided to the optical correction system as input for display image correction. In particular, when multiple drivers need to be provided with a display interface, the image information of each driver's eye position and gaze direction is identified by a camera. Based on the different eye positions and gaze directions of each driver, the optical path of the windshield projection display system is adjusted separately to ensure that the displayed image remains centered in the field of vision of each driver and does not interfere with each other. Thus, even in vehicles using curved windshields, aberrations generated at different parts of the projection surface during projection using a head-up display can be reduced or even eliminated, reducing image distortion.

[0019] In addition, based on the above-described configuration, the head-up display image compensation system and method of this disclosure are applicable to real-time windshield deformation monitoring methods in harsh operating environments. More specifically, the head-up display image compensation system and method of this disclosure is an image compensation method that corrects projected images based on windshield shape monitoring (deformation monitoring). By arranging deformation sensors around the windshield or calibrating the windshield surface in real time using sensing devices (both deformation sensors and sensing devices are specific implementations of the "windshield deformation detection unit" of this disclosure), the current shape and degree of deformation of the windshield are monitored in real time, and distortion correction and aberration correction are calculated in a timely manner for the image formed by the windshield projection display system. Therefore, even in vehicles with harsh operating environments, deformation of the curved windshield caused by environmental influences can be avoided, thus improving driving safety. Attached Figure Description

[0020] Figure 1 This is a system architecture diagram illustrating the architecture of a head-up display image compensation system for curved windshields according to an embodiment of the present disclosure.

[0021] Figure 2 This is a schematic diagram illustrating the equipment components of a head-up display image compensation system for curved windshields.

[0022] Figure 3 This is a flowchart illustrating the head-up display image compensation method for curved windshields disclosed herein. (Symbol Explanation) CW curved windshield; 100 Head-up display image compensation system; 200 Driver eye-tracking system; 210 Eye-tracking device; 220 Eye Position Analysis Module; 300 Windshield Deformation Detection System; 310 Windshield Deformation Detection Department; 320 Windshield Deformation Calculation Module; 400 Optical Correction System; 410 Image Correction Calculation Module; 420 Correction Lens; 500 Windshield Projection Display System; 510 Display information acquisition unit; 520 image generation units; 530 optical path. Detailed Implementation

[0023] Hereinafter, with reference to the accompanying drawings, the head-up display image compensation system 100 and method for curved windshields of this disclosure will be described.

[0024] First, use Figure 1 and Figure 2 The head-up display image compensation system 100 for curved windshields will be described, wherein, Figure 1 This is a system architecture diagram illustrating the architecture of a head-up display image compensation system 100 for curved windshields according to an embodiment of this disclosure. Figure 2 This is a schematic diagram illustrating the device composition of a head-up display image compensation system 100 for curved windshields.

[0025] like Figure 1 As shown, the head-up display image compensation system 100 for curved windshields (CW) disclosed herein includes a driver eye-tracking system 200, a windshield deformation detection system 300, an optical correction system 400, and a windshield projection display system 500.

[0026] The driver eye-tracking system 200 tracks the driver's eye movements, including but not limited to three basic forms: fixation, jumps, and following movements. Fixation is the state where the eyes are focused on a target to obtain clear vision; jumps refer to discontinuous leaps in the line of sight as the gaze searches for a target or shifts focus; and following movements are smooth eye movements used to track dynamic objects (such as moving vehicles) or to maintain a fixed gaze during head movements. These can be further divided into head-tracking (eyes moving in the same direction as the object) and steady-state tracking (eyes moving in the opposite direction to counteract body movement). These eye-tracking forms collectively support the driver in processing visual information in complex environments, such as fixating on key areas (such as traffic signals), quickly scanning the environment through jumps, and monitoring dynamic targets using following movements.

[0027] like Figure 1 As shown, the driver eye-tracking system 200 includes an eye-tracking device 210 and an eye position analysis module 220, wherein the eye-tracking device 210 can be installed on the front side of the cockpit (e.g., Figure 2 The upper part of the windshield (as shown) is responsible for capturing image information of the driver's eye position and gaze direction, and sending this information to the eye position analysis module 220. The eye position analysis module 220 is responsible for calculating the driver's eye position spatial coordinates and gaze direction, i.e., eye position information, based on the aforementioned image information, and transmitting them to the windshield deformation detection system 300 and the optical correction system 400, respectively.

[0028] The Windshield Deformation Detection System 300 is used to detect the deformation of windshields (using curved windshields, CW, as a typical example) under high-altitude, high-speed conditions. Windshield deformation, especially curved windshields (CW), primarily results from the combined effects of pressure differences, temperature variations, and material properties. During high-speed aircraft flight, the external airflow is fast and low-pressure, while the cabin maintains normal pressure. This pressure difference exerts an outward force on the windshield. While the curved design of CW optimizes airflow distribution, it also complicates the pressure distribution; for example, edge areas may experience higher pressure due to airflow separation, leading to localized deformation. Furthermore, the extremely low temperatures at high altitudes (down to -50°C) compared to the stable cabin temperature cause different degrees of shrinkage between the inner and outer layers of the glass, generating thermal stress and resulting in deformation. In addition, modern aircraft windshields are mostly made of polycarbonate or tempered glass. Although this material is strong, it is not completely rigid. Under continuous high pressure and temperature changes, this material may creep, leading to the accumulation of deformation.

[0029] like Figure 1As shown, the windshield deformation detection system 300 includes a windshield deformation detection unit 310 and a windshield deformation calculation module 320. The windshield deformation detection unit 310 is, for example, disposed at a specific location on the windshield (e.g., a curved windshield CW) (which can be simultaneously referenced). Figure 2 The deformation at a specific location of the windshield is obtained as input and passed to the windshield model calculation module 320. The windshield model calculation module 320 ( Figure 2 (Not shown in the figure) The system receives the driver's eye position information calculated and transmitted from the eye position analysis module 220 of the driver's eye tracking system 200, and generates a windshield shape model under the current condition (e.g., after deformation) based on data such as the windshield deformation information at a specific position, the initial shape model of the windshield, and the windshield material information transmitted from the windshield deformation detection unit 310. The model is then transmitted to the optical correction system 400 as a basis for image calibration. As an example of the windshield deformation detection unit 310 being installed at a specific location on the windshield, the windshield deformation detection unit 310 can be a deformation sensor installed on the edge of the windshield, which monitors the deformation of each point on the edge of the windshield in real time and calculates the overall deformation of the windshield through a simulation model. However, this disclosure is not limited to this. Alternatively, calibration points can be set on the inner surface of the windshield, and the overall deformation of the windshield can be calculated by a model by sensing the change in the interval distance between each calibration point through a sensing device installed inside the cockpit. In this case, such a sensing device can also be regarded as the windshield deformation detection unit 310 referred to in this disclosure.

[0030] The optical correction system 400 is used to correct image distortion and aberrations projected by the windshield projection display system 500. For example... Figure 1 As shown, the optical correction system 400 includes an image correction calculation module 410 and a correction lens 420, wherein the image correction calculation module 410 ( Figure 2(Not shown in the figure) The system receives driver eye position information calculated and transmitted from the eye position analysis module 220 of the driver eye tracking system 200, and windshield shape model under the current condition transmitted from the windshield deformation detection system 300's windshield model calculation module 320. Based on this, it calculates the distortion of the image projected under the current projection light path 530 of the windshield projection display system 500 and the windshield curvature, and then generates the aforementioned distortion matching the current curved windshield CW. It also designs and adjusts the light path 530 of the windshield projection display system 500 to form a distortion correction algorithm for the optimal reflective light path of the windshield, and transmits it to the windshield projection display system 500. At the same time, the image correction calculation module 410, based on the calculated optimal reflective light path of the windshield, adjusts the correction lens 420 set at the light output area of ​​the light path 530 of the windshield projection display system 500 (which can also be referenced at the same time). Figure 2 The image correction module 410 adjusts the projection position on the windshield to eliminate aberrations caused by the curvature of the windshield. Additionally, the correction lens 420, for example, is a single lens or a combination of multiple optical components, used to adjust the light output direction of the windshield projection display system 500 according to the design adjustment of the optical path 530 generated by the image correction calculation module 410, in order to compensate for aberrations.

[0031] The windshield projection head-up display system 500 is used to provide visual information to the driver on the windshield. For example... Figure 1 As shown, the windshield projection head-up display system 500 typically includes a display information acquisition unit 510, an image generation unit 520, and an optical path 530, wherein the display information acquisition unit 510 ( Figure 2 (Not shown in the image) is responsible for obtaining the information the driver needs, and the image generation unit 520 ( Figure 2 (Not shown in the image) is used to form an image, and is transmitted through optical path 530 ( Figure 2 (Not shown in the figure) The image is projected onto the windshield via the aforementioned correction lens 420. The image generation unit 520 corrects the distortion of the formed image according to the distortion correction algorithm provided by the image correction calculation module 410 of the optical correction system 400.

[0032] Next, use Figure 3 The head-up display image compensation system 100 for curved windshields will be described. Figure 3 This is a flowchart illustrating the head-up display image compensation method for curved windshields disclosed herein.

[0033] The head-up display image compensation method for curved windshields disclosed herein uses... Figure 1 and Figure 2The head-up display image compensation system 100 for curved windshields shown corrects the display projection of the curved windshield (CW). The head-up display image compensation method includes:

[0034] The step of obtaining the driver's eye position spatial coordinates and gaze direction, i.e., eye position information, by the driver eye tracking system 200 through the eye tracking device 210. (Step S110)

[0035] The step of detecting the deformation of the current windshield by the windshield deformation detection system 300 to generate the current windshield shape model (step S120).

[0036] Step S130: The windshield deformation detection system 300 calculates the position of the windshield projection area where the windshield projection display system 500 needs to project an image onto the windshield based on the driver's eye position information provided by the driver's eye tracking system 200.

[0037] The step of generating a distortion correction algorithm by the optical correction system 400 based on the current windshield shape model and the position of the windshield projection area provided by the windshield deformation detection system 300 to design and adjust the optical path 530 of the windshield projection display system 500 in the current state to form the optimal reflective optical path of the windshield (step S140).

[0038] The windshield projection display system 500 receives the distortion correction algorithm provided by the optical correction system 400, performs distortion correction on the projected image, and generates a distortion-compensated image (step S150).

[0039] The optical correction system 400 adjusts the correction lens 420 located in the light-emitting area of ​​the light path 530 of the windshield projection display system 500 according to the calculated optimal reflective light path of the windshield to eliminate aberrations caused by the curvature of the windshield (step S160).

[0040] In addition, Figure 3 In each of steps S110 to S160 shown, for example, in step S140, the distortion correction algorithm is calculated and generated by using the current driver's eye position, the position of the windshield area to be projected by the windshield projection display system 500 and the shape of the current position of the windshield area, as well as the position and direction of the light-emitting surface of the windshield projection display system 500, to generate a light path plan and projection direction that match the scene requirements, and an algorithm to eliminate the distortion of the projected image is generated according to the curved shape of the target area of ​​the curved windshield CW.

[0041] Based on the configuration described above, the head-up display image compensation system 100 and method of this disclosure are applicable to curved windshields. More specifically, by installing an eye-tracking device 210 at the front of the cockpit (e.g., at the top of the windshield), image information of the driver's eye position and gaze direction is acquired in real time. The driver's gaze point on the windshield at the current time point is calculated in real time. The curvature and tilt information of the windshield at the current position are obtained through a pre-stored curved windshield model and provided to the optical correction system 400 as input for display image correction. In particular, when multiple drivers need to be provided with a display interface, the image information of each driver's eye position and gaze direction is identified by a camera. According to the different eye positions and gaze directions of each driver, the optical path of the windshield projection display system 500 is adjusted separately to ensure that the displayed image remains in the center of each driver's field of vision and does not interfere with each other. Thus, even in vehicles using curved windshields, aberrations generated at different parts of the projection surface during projection using a head-up display can be reduced or even eliminated, reducing image distortion.

[0042] In addition, based on the above-described configuration, the head-up display image compensation system 100 and method of this disclosure are applicable to real-time windshield deformation monitoring methods in harsh operating environments. More specifically, the head-up display image compensation system 100 and method of this disclosure is an image compensation method that corrects projected images based on windshield shape monitoring (deformation monitoring). By arranging deformation sensors around the windshield or calibrating the windshield surface in real time using sensing devices (both deformation sensors and sensing devices are specific implementations of the "windshield deformation detection unit 310" of this disclosure), the current shape and degree of deformation of the windshield are monitored in real time, and distortion correction and aberration correction are performed on the image formed by the windshield projection display system 500 in a timely manner. Therefore, even in vehicles with harsh operating environments, deformation of the curved windshield caused by environmental influences can be avoided, thus improving driving safety.

[0043] Other advantages and modifications will readily occur to those skilled in the art. Therefore, this disclosure is not limited in its broader sense to the specific details and representative embodiments shown and described herein. Modifications can thus be made without departing from the spirit or scope of the overall inventive concept as defined by the appended claims and their equivalents.

Claims

1. A head-up display image compensation system (100) for a curved windshield (CW), characterized in that, Comprising: a windshield projection head-up display system (500) for providing visual information to a driver on the curved windshield (CW); a driver eye movement tracking system (200) for tracking the eye movement of the driver, which can calculate the eye position spatial coordinates and gaze direction of the driver, i.e. eye position information; a windshield deformation detection system (300) for detecting the deformation of the curved windshield (CW), which can obtain windshield deformation information of the deformation of the curved windshield (CW) at a specific location and generate a windshield shape model under the current situation; and an optical correction system (400) for correcting the image distortion and image aberration projected by the windshield projection display system (500), which receives the eye position information of the driver from the driver eye movement tracking system (200) and the windshield shape model under the current situation from the windshield deformation detection system (300), calculates the distortion of the image projected under the current projection light path (530) of the windshield projection display system (500) and the curvature of the curved windshield (CW), generates a distortion correction algorithm that matches the distortion of the curved windshield (CW) and adjusts the light path (530) of the windshield projection display system (500) to form an optimal reflection light path of the windshield, and transmits it to the windshield projection display system (500).

2. The head-up display image compensation system (100) for the curved windshield (CW) according to claim 1, characterized in that: the optical correction system (400) adjusts the correction lens (420) arranged at the light exit area of the light path (530) of the windshield projection display system (500) according to the calculated optimal reflection light path of the windshield to correct the image aberration.

3. The head-up display image compensation system (100) for the curved windshield (CW) according to claim 2, characterized in that: the driver eye movement tracking system (200) comprises: an eye movement tracking device (210) that can be installed on the front side of the cockpit, responsible for capturing image information of the eye position and gaze direction of the driver; and an eye position analysis module (220) that calculates the eye position information of the driver according to the aforementioned image information sent by the eye movement tracking device (210) and transmits it to the windshield deformation detection system (300) and the optical correction system (400) respectively.

4. The head-up display image compensation system (100) for the curved windshield (CW) according to claim 3, characterized in that: the windshield deformation detection system (300) comprises: a windshield deformation detection unit (310) configured to detect windshield deformation information of a specific position of the curved windshield (CW); and a windshield deformation calculation module (320) configured to generate a windshield shape model under a current situation based on the windshield deformation information transmitted from the windshield deformation detection unit (310), a windshield initial shape model, and windshield material information, and transmit the windshield shape model to the optical correction system (400).

5. The head-up display image compensation system (100) for the curved windshield (CW) according to claim 4, wherein the windshield deformation detection unit (310) is a deformation sensor arranged at an edge of the curved windshield (CW) to monitor deformation of each point of the edge of the curved windshield (CW) in real time.

6. The head-up display image compensation system (100) for the curved windshield (CW) according to claim 4, wherein a calibration point is arranged on an inner surface of the curved windshield (CW), and the windshield deformation detection unit (310) is a sensing device arranged inside the cockpit to sense a change in a distance between the calibration points.

7. The head-up display image compensation system (100) for the curved windshield (CW) according to claim 4, wherein the optical correction system (400) comprises: an image correction calculation module (410) configured to generate the distortion correction algorithm; and a correction lens (420) configured to adjust an out-light direction of the windshield projection display system (500) according to the design of the optical path (530) generated by the image correction calculation module (410) to compensate for the aberration.

8. The head-up display image compensation system (100) for the curved windshield (CW) according to claim 7, wherein the windshield projection display system (500) comprises: a display information acquisition unit (510) configured to acquire information required by the driver; an image generation unit (520) configured to form an image; and an optical path (530) through which the image is projected onto the curved windshield (CW) via the correction lens (420), wherein the image generation unit (520) corrects distortion of the formed image according to the distortion correction algorithm provided by the image correction calculation module (410). The head-up display image compensation method comprises: a step of capturing image information of an eye position and a gaze direction of the driver by an eye movement tracking device (210) of a driver eye movement tracking system (200) to obtain eye position spatial coordinates and a gaze direction of the driver, i.e., eye position information; ​ ​ ​ ​ ​ ​ ​ ​ ​ 9. A head-up display image compensation method for a curved windshield (CW), which corrects display projection on the curved windshield (CW) using the head-up display image compensation system (100) for a curved windshield (CW) according to any one of claims 1 to 8, characterized in that, ​ ​ detecting the deformation of the curved windshield (CW) by the windshield deformation detection system (300) to generate the current windshield shape model; calculating the position of the windshield projection area for the current curved windshield (CW) by the windshield deformation detection system (300) according to the eye position information of the driver provided by the driver eye tracking system (200) to determine the position of the windshield projection area for the current curved windshield (CW) for the windshield projection display system (500) to project the image on the curved windshield (CW); generating the distortion correction algorithm for the optical path (530) of the windshield projection display system (500) to form the optimal reflection optical path of the windshield by the optical correction system (400) according to the current windshield shape model and the position of the windshield projection area provided by the windshield deformation detection system (300) to adjust the design of the optical path (530) of the windshield projection display system (500) to form the optimal reflection optical path of the windshield in the current state; correcting the distortion of the projected image by the windshield projection display system (500) according to the distortion correction algorithm provided by the optical correction system (400) to generate the image after distortion compensation; adjusting the correction lens (420) provided at the light emitting area of the optical path (530) of the windshield projection display system (500) by the optical correction system (400) according to the calculated optimal reflection optical path of the windshield to eliminate the aberration caused by the curvature of the curved windshield (CW).

10. The compensation method for the head-up display image of the curved windshield (CW) according to claim 9, wherein the distortion correction algorithm is calculated and generated by the current eye position of the driver, the position of the windshield projection area of the windshield projection display system (500) and the shape of the current position of the windshield projection area, and the position and direction of the light emitting surface of the windshield projection display system (500) to generate the optical path planning and projection direction matching the scene requirement, and the algorithm to eliminate the distortion of the projected image is generated according to the curved shape of the target area of the curved windshield (CW).

Images