Nine-view detection camera and HUD optical detection system for HUD optical detection

Abstract

The utility model discloses a nine -purpose detection camera and HUD optical detection system for HUD optical detection, camera includes: integrated rigid installation base body, nine optical imaging units are fixedly arranged on the rigid installation base body in the space staggered array mode, form compact space geometry layout, every optical imaging unit includes optical lens and image sensor, and image sensor sets up in the image plane position of corresponding optical lens, wherein, the optical center point distribution of nine optical imaging units is on different space distribution plane group, and this arrangement mode is configured to match with the three -dimensional space structure of HUD eye box, and the optical axis of nine optical imaging units converges in a virtual conjugate point, and the conjugate point is configured to coincide with the center of the HUD eye box to be measured, solves the problem that traditional HUD eye box detection method is low in efficiency, system is complex, and the consistency is poor, through multi -purpose synchronous acquisition and eye box test algorithm analysis, significantly improves detection efficiency and accuracy.

Description

Technical Field

[0001] This utility model relates to the field of optical precision measurement and testing technology, and in particular to a nine-eye inspection camera and HUD optical inspection system for HUD optical inspection. Background Technology

[0002] Head-up displays (HUDs) are important in-vehicle information display devices that improve driving safety and convenience by projecting vehicle information, navigation information, and other data into the driver's field of vision. The optical performance of a HUD directly affects user experience and driving safety, with the eyebox being a key indicator of HUD usability, representing the spatial area where the driver's eyes can clearly see the complete display information.

[0003] Currently, HUD optical performance testing primarily employs a monocular or binocular optical camera in conjunction with a three-axis motion platform. During testing, the camera is sequentially moved to multiple preset positions within the eyepiece area using the motion platform for image acquisition and data analysis. This sequential testing method has the following drawbacks: 1. Low detection efficiency: Moving and repositioning take a long time. It takes about 45 seconds to complete the detection of 9 points, which cannot meet the cycle time requirements of modern production lines. 2. Poor system stability: Frequent movement leads to mechanical wear, resulting in a high failure rate and high maintenance costs; 3. Measurement consistency is difficult to guarantee: During time-sharing data acquisition, changes in HUD status or ambient lighting can affect the consistency of measurement results; 4. Low system integration: The motion platform occupies a large space and the system structure is complex. Therefore, there is an urgent need for a high-efficiency, stable, and low-cost nine-lens inspection camera for HUD optical inspection to meet the needs of rapid data acquisition and testing analysis on the production line. Utility Model Content

[0004] The purpose of this invention is to provide a nine-lens inspection camera and HUD optical inspection system for HUD optical inspection, overcoming the shortcomings of the prior art and providing a nine-lens inspection camera and system with high integration and high inspection efficiency.

[0005] This utility model provides a nine-lens inspection camera for HUD optical inspection, comprising: An integrated rigid mounting base is used to support and position nine optical imaging units; Nine optical imaging units are fixedly arranged in a spatially staggered array on the rigid mounting base, forming a compact spatial geometric layout. Each optical imaging unit includes an optical lens and an image sensor, with the image sensor positioned at the image plane of the corresponding optical lens. The optical center points of the nine optical imaging units are distributed on three different spatial distribution plane groups and are arranged in a staggered manner, which is configured to match the three-dimensional spatial structure of the HUD eye box. The optical axes of the nine optical imaging units converge at a virtual conjugate point, which is configured to coincide with the center of the HUD eye box under test.

[0006] Preferably, the three different spatial distribution plane groups include a first spatial distribution plane group, a second spatial distribution plane group, and a third spatial distribution plane group; the optical axes of the optical imaging units in the first and third spatial distribution plane groups are in the same horizontal reference plane; the optical axes of the optical imaging units in the second spatial distribution plane group have a preset offset in the horizontal direction relative to the optical axes of the optical imaging units in the first and third spatial distribution plane groups, forming a non-aligned layout.

[0007] Preferably, the preset offset is determined based on the external dimensions and minimum safe distance between adjacent optical imaging units to ensure that the physical structures of adjacent optical imaging units do not come into contact.

[0008] Preferably, the optical imaging units in the first spatial distribution plane group and the third spatial distribution plane group are aligned in the horizontal projection direction, and the optical imaging units in the second spatial distribution plane group are staggered relative to the first spatial distribution plane group and the third spatial distribution plane group in the horizontal projection direction, forming an interleaved projection layout.

[0009] Preferably, the field-of-view projection areas of the nine optical imaging units form a continuous and blind-spot-free coverage on the surface of the HUD eye box under test, ensuring that each HUD eye box position can be effectively observed by at least one optical imaging unit.

[0010] Preferably, the integrated rigid mounting base includes a front housing, a camera support base, and a rear housing that are fixedly connected in sequence.

[0011] Preferably, the installation position accuracy of the nine optical imaging units relative to the integrated rigid mounting base is controlled within ±0.15mm in the X, Y, and Z directions.

[0012] Preferably, the outer surface of the integrated rigid mounting base is provided with a plurality of heat dissipation through holes around the base. The heat dissipation through holes include: heat dissipation through holes disposed around the outer surface of the mounting base for forming overall convection heat dissipation; and heat dissipation through holes disposed in the structural area between multiple sets of spatial distribution plane groups, wherein the heat dissipation through holes are located between the first spatial distribution plane group and the second spatial distribution plane group, and between the second spatial distribution plane group and the third spatial distribution plane group.

[0013] This utility model also provides a HUD optical inspection system, including: As described in the nine-eye detection camera; A multi-axis precision adjustment platform, on which the nine-eye detection camera is fixedly mounted; a control and processing unit, electrically connected to the nine-eye detection camera, for receiving and processing image data acquired by the nine-eye detection camera.

[0014] Preferably, the multi-axis precision adjustment platform is a five-axis motion platform, which can drive the nine-eye detection camera to translate and rotate in space to adjust the spatial pose of the camera.

[0015] Compared with the prior art, the present invention has the following beneficial effects: This invention utilizes a spatially staggered array of nine optical imaging units, combined with an integrated rigid substrate, to significantly reduce the device size and adapt to the limited space of production lines. The three sets of spatially distributed planes are deeply matched with the three-dimensional structure of the HUD eyepiece, with the optical axes converging at a virtual conjugate point, ensuring consistent imaging from all viewpoints and eliminating image distortion caused by viewpoint deviations. Simultaneous exposure of the nine optical imaging units compresses the traditional 43-second / segment time-division acquisition to within 5 seconds, improving efficiency by 88%. The invention eliminates the need for point-to-point movement of the XYZ platform, avoiding mechanical delays and wear, making it suitable for high-speed production lines. System calibration achieves unified calibration of the intrinsic and extrinsic parameter matrices and distortion coefficients of the nine cameras, with a geometric error ≤ ±0.15mm.

[0016] This invention significantly improves testing efficiency: a nine-eye camera simultaneously acquires data from nine eye positions, reducing the total testing time to only 235 seconds, an 88% reduction compared to traditional methods, meeting the rapid testing needs of production lines; the system boasts a compact and stable structure: employing a spatially staggered array layout, the compact structure avoids mechanical interference, enhancing system stability and reliability; test results exhibit excellent consistency: multi-eye synchronous acquisition avoids errors introduced by multiple movements, ensuring consistent and accurate test results; and it has a wide range of applications: widely applicable to the optical performance testing of various head-up display devices such as automotive HUDs and aviation HUDs. Through a collaborative design combining structural innovation, intelligent algorithms, and system integration, this invention solves the efficiency bottlenecks, accuracy limitations, and insufficient flexibility of traditional HUD testing, achieving a technological leap from "sampling inspection" to "full inspection," and from "human experience" to "data-driven," providing a high-precision, high-efficiency quality assurance solution for intelligent automotive production. Attached Figure Description

[0017] Figure 1-3 This is a schematic diagram of the nine-eye inspection camera structure used for HUD optical inspection in an embodiment of this utility model. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] The term "comprising" and its variations as used herein are open-ended inclusion, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Definitions of other terms will be given in the description below.

[0020] It should be noted that the concepts of "first" and "second" mentioned in this application are only used to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0021] It should be noted that the terms "a" and "a plurality of" used in this application disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0022] like Figure 1-2 As shown, this utility model provides a nine-lens inspection camera for HUD optical inspection, comprising: An integrated rigid mounting base 1 supports and positions nine optical imaging units 2. The integrated rigid mounting base 1 includes a front housing 11, a camera support 12, and a rear housing 13. The front housing 11 has nine precision-machined light-transmitting holes, the camera support 12 has nine mounting positions, and the rear housing 13 is designed with a heat dissipation fin structure. It is made of a material with a low coefficient of thermal expansion and features a comprehensive heat dissipation system, including heat dissipation fins or fans on the front, sides, and rear, ensuring that the heat generated by the nine optical imaging units 2 during continuous long-term operation is dissipated in a timely manner, maintaining stable operation of the system at a constant temperature and preventing thermal noise from affecting image quality. Nine identical industrial camera modules (such as a 5-megapixel CMOS camera) are precisely integrated onto the base as optical imaging units, each equipped with a fixed-focus lens. The optical centers of the nine units are precisely machined and positioned according to the eyebox map provided by the HUD manufacturer, forming a staggered arrangement with a horizontal spacing of 65mm and a vertical spacing of 25mm, with an installation accuracy within ±0.15mm.

[0023] Nine optical imaging units 2 are fixedly arranged in a spatially staggered array on the rigid mounting base 1, forming a compact spatial geometric layout. Each optical imaging unit includes an optical lens and an image sensor, with the image sensor positioned on the image plane of the corresponding optical lens. The nine optical imaging units 2 employ the same type of 2-megapixel industrial camera module (such as a Sony IMX sensor paired with a C-mount fixed-focus lens), and each optical imaging unit is fixed to the camera support via a fine-tuning mechanism. The optical center points of the nine optical imaging units 2 are distributed across three different spatial distribution plane groups and are arranged in a staggered manner.

[0024] The three spatial distribution plane groups include a first, second, and third spatial distribution plane group. The optical axes of the optical imaging units in the first spatial distribution plane group 21 and the third spatial distribution plane group 23 are located in the same horizontal reference plane. The optical axes of the optical imaging units in the second spatial distribution plane group 22 have a preset offset in the horizontal direction relative to the optical axes of the optical imaging units in the first spatial distribution plane group 21 and the third spatial distribution plane group 23, forming a non-aligned layout. This preset offset is determined based on the external dimensions and minimum safety distance of adjacent optical imaging units, effectively avoiding mechanical interference between adjacent imaging units.

[0025] like Figure 3 As shown, on three different spatial distribution plane groups: the first spatial distribution plane group 21 contains three optical imaging units whose optical axes are in the same horizontal reference plane; Second spatial distribution plane group 22: contains three optical imaging units, located 25mm below the first distribution plane group; The third spatial distribution plane group 23 contains three optical imaging units, located 25 mm below the second distribution plane group 22, and aligned with the optical imaging units of the first distribution plane group 21 in the horizontal projection direction. Key dimensional parameters: horizontal distance between adjacent optical centers: 65±0.1mm, vertical distance between adjacent plane groups: 25±0.1mm, the optical imaging unit of the second distribution plane group 22 has a preset offset of 32.5mm in the horizontal direction relative to the first and third distribution plane groups, and the accuracy error of the installation position of each optical imaging unit in the XYZ direction: ≤±0.15mm.

[0026] The optical axes of the nine optical imaging units 2 converge at a virtual conjugate point, which is configured to coincide with the center of the HUD eye box under test, ensuring that each imaging unit can be accurately aligned with its corresponding eye box observation point. Through this arrangement, each optical imaging unit corresponds to a specific detection point of the HUD eye box, including the upper, middle, lower, left, right, and four apex positions.

[0027] The three different spatial distribution plane groups include a first spatial distribution plane group 21, a second spatial distribution plane group 22, and a third spatial distribution plane group 23. The optical axes of the optical imaging units in the first spatial distribution plane group 21 and the third spatial distribution plane group 23 are located in the same horizontal reference plane. The optical axes of the optical imaging units in the second spatial distribution plane group 22 have a preset offset in the horizontal direction relative to the optical axes of the optical imaging units in the first spatial distribution plane group 21 and the third spatial distribution plane group 23, forming a non-aligned layout to avoid mechanical interference between adjacent imaging units. For example, the optical imaging units distributed in the first and third rows are misaligned with the optical imaging units distributed in the second row on the camera to ensure that the physical structures of adjacent optical imaging units do not come into contact. The staggered layout reduces stray light interference between adjacent lenses, improves image contrast and signal-to-noise ratio (SNR), and, combined with the use of telecentric lenses, further suppresses perspective distortion caused by viewing angle tilt, ensuring geometric consistency of images at each test point. The unified optical axis converges at the virtual conjugate point, reducing the complexity of multi-camera joint calibration, improving calibration efficiency, and achieving a balance between the relationship between the light incident angle and aberration correction by precisely controlling the optical axis pointing and misalignment of each imaging unit.

[0028] In one embodiment, the preset offset is determined based on the external dimensions and minimum safe distance between adjacent optical imaging units, ensuring that the physical structures of adjacent optical imaging units do not come into contact. For example, the minimum safe distance is ≥2.0mm. The eye box size is typically configured as 130mm*50mm. Through precisely calculated offsets, it is ensured that the physical structures of adjacent camera modules, such as their housings, will not collide or come into contact under any circumstances (including transportation, vibration, and thermal expansion and contraction), thereby protecting expensive optical components and improving the overall structural stability and lifespan of the device. Simultaneously, optical imaging units (especially image sensors CMOS / CCD) generate heat during operation. If the modules are tightly packed together, heat will accumulate, forming a "heat island effect," leading to increased sensor noise (thermal noise) and severely affecting image quality (such as inaccurate brightness and uniformity measurements). The preset offset creates an effective heat dissipation channel between adjacent modules, allowing airflow. Combined with an active cooling system, this effectively removes heat, ensuring that each camera maintains stable performance even during long-term continuous operation.

[0029] In one embodiment, the optical imaging units in the first spatial distribution plane group 21 and the third spatial distribution plane group 23 are aligned in the horizontal projection direction, while the optical imaging units in the second spatial distribution plane group 22 are staggered relative to the first spatial distribution plane group 21 and the third spatial distribution plane group 23 in the horizontal projection direction, forming an interlaced projection layout. By staggering the optical imaging units of the second spatial distribution plane group 22 in the horizontal projection direction, direct alignment with the imaging units of the first and third groups is avoided, thereby achieving high-density arrangement within a limited installation space. The physical structures of adjacent imaging units (such as lens housings and sensor modules) will not come into contact or rub against each other due to excessive proximity, reducing the risk of mechanical damage. No additional protective brackets or spacers are required, simplifying the overall mechanical structure and reducing the weight of the device. This is especially suitable for scenarios with limited space in the HUD eye box area, ensuring stable integration of multiple camera arrays.

[0030] In one embodiment, the field-of-view projection areas of the nine optical imaging units 2 form a continuous and blind-spot-free coverage on the surface of the HUD eye box under test, ensuring that each HUD eye box position can be effectively observed by at least one optical imaging unit, achieving seamless stitching. The staggered layout allows the field-of-view projections of each imaging unit to form complementary superposition in the horizontal plane, rather than simple repetitive coverage. Even if the HUD under test has minor assembly deviations (such as ±0.15mm), the redundancy coverage of adjacent fields of view can still ensure the integrity of data acquisition.

[0031] This implementation utilizes a nine-lens camera to address the data acquisition needs for optical analysis in HUD multi-eye testing. Traditionally, testing nine eye points requires moving the camera to each of the nine positions using an XYZ motion module, taking photos sequentially. Each movement takes 2 seconds, and each of the nine photos takes approximately 3 seconds, for a total estimated time of 2*8+3*9=43 seconds. This timeframe is unacceptable for a production line. With the nine-lens camera, the camera only needs to move to the designated position, and the nine probes simultaneously acquire data from all nine positions. The data acquisition time is reduced to only 2+3=5 seconds, a reduction of 88% compared to the previous method, meeting the production line's needs for rapid data acquisition and testing analysis.

[0032] Preferably, the installation position accuracy of the nine optical imaging units 2 relative to the integrated rigid mounting base 1 is controlled within ±0.15mm in the X, Y, and Z directions. The optical axes of the nine optical imaging units 2 must converge at a virtual conjugate point (coinciding with the center of the HUD eye box under test). If the installation position deviation exceeds the threshold, it will cause the optical axes to deviate from the theoretical intersection point, resulting in image distortion or viewing angle shift. The high-precision control of ±0.15mm ensures that all optical axes strictly converge at the conjugate point, so that the geometric consistency of the image at each viewing angle reaches the micrometer level, meeting the high-precision requirements of HUD virtual image display. The field of view projection of each optical imaging unit must be seamlessly connected and cover the entire surface of the HUD eye box. Installation position deviation will cause the field of view overlap area to decrease or gaps to appear. By strictly controlling the installation position, the nine field of view projection areas form a continuous and uniform coverage, avoiding detection blind spots or redundant detection caused by misalignment.

[0033] Preferably, the outer surface of the integrated rigid mounting base 1 is provided with multiple heat dissipation through holes 3 penetrating the base. These heat dissipation through holes 3 include: heat dissipation through holes disposed around the outer surface of the mounting base to form overall convection heat dissipation 3; and heat dissipation through holes 3 disposed in the structural regions between multiple spatial distribution plane groups. These heat dissipation through holes 3 are located between the first spatial distribution plane group 21 and the second spatial distribution plane group 22, and between the second spatial distribution plane group 22 and the third spatial distribution plane group 23. The heat dissipation through holes 3 around the outer surface form a horizontal natural convection channel, which, together with the vertical heat dissipation through holes between the plane groups, constructs a three-dimensional airflow channel, achieving all-round heat dissipation, rapidly reducing the operating temperature of the optical imaging unit (such as an image sensor), avoiding increased dark current noise or pixel failure due to high temperatures, and ensuring stable image acquisition quality. The heat dissipation through holes between the first / second and second / third spatial distribution plane groups directly connect to high heat density areas (such as image sensor modules), shortening the heat transfer path. Compared to traditional designs that rely solely on outer surface heat dissipation, this can reduce the temperature of core components and effectively suppress hot spot formation.

[0034] Based on the same inventive concept, this utility model embodiment provides a HUD optical inspection system, including: The nine-eye detection camera provided in the above embodiments; A multi-axis precision adjustment platform, such as a five-axis or six-axis platform, is used to support and adjust the pose of the nine-eye detection camera in space, ensuring that the optical axes of the nine optical imaging channels are aligned with nine preset detection points in the HUD eye box area. The multi-axis precision adjustment platform (such as a five-axis / six-axis platform) provides sub-millimeter-level spatial pose adjustment capability. Combined with the conjugate point design of the optical axes of the nine-eye camera, it ensures that the optical axes of the nine optical imaging channels are strictly coincident with the central axis of the preset detection points of the HUD eye box (error ≤ ±0.15mm). Preferably, the multi-axis precision adjustment platform is a five-axis motion platform, capable of driving the nine-eye detection camera to translate and rotate in space to adjust the camera's spatial pose. A control processing unit, electrically connected to the nine-eye detection camera, is used to receive and process the image data acquired by the nine-eye detection camera. Without the need to move the camera point by point, the data acquisition time is reduced from the traditional 43 seconds to 5 seconds, and the single inspection cycle is greatly compressed, meeting the needs of high-speed production lines (such as inspecting multiple HUDs per minute) and significantly improving daily production capacity. The multi-axis platform and control unit work together to realize the full automation of the process from automatic loading and unloading to inspection to result output, reducing manual intervention. This allows the synchronous acquisition capability of the nine-eye camera to be combined with the rapid positioning of the multi-axis platform, completely replacing the traditional single-point serial inspection mode.

[0035] The camera is mounted on a high-precision six-axis adjustment platform. An industrial computer (control processing unit) controls the movement of the six-axis platform via a motion control card, precisely positioning the nine cameras within the eyebox area of ​​the HUD under test, and aligning the virtual conjugate point with the center of the eyebox. The industrial computer sends synchronization trigger signals to the nine cameras via a gigabit network switch.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A nine-lens inspection camera for HUD optical inspection, characterized in that, include: An integrated rigid mounting base is used to support and position nine optical imaging units; Nine optical imaging units are fixedly arranged in a spatially staggered array on the rigid mounting base, forming a compact spatial geometric layout. Each optical imaging unit includes an optical lens and an image sensor, with the image sensor positioned at the image plane of the corresponding optical lens. The optical center points of the nine optical imaging units are distributed on three different spatial distribution plane groups and are arranged in a staggered manner, which is configured to match the three-dimensional spatial structure of the HUD eye box. The optical axes of the nine optical imaging units converge at a virtual conjugate point, which is configured to coincide with the center of the HUD eye box under test.

2. The nine-lens inspection camera for HUD optical inspection according to claim 1, characterized in that, The three different spatial distribution plane groups include a first spatial distribution plane group, a second spatial distribution plane group, and a third spatial distribution plane group; the optical axes of the optical imaging units in the first and third spatial distribution plane groups are in the same horizontal reference plane; the optical axes of the optical imaging units in the second spatial distribution plane group have a preset offset in the horizontal direction relative to the optical axes of the optical imaging units in the first and third spatial distribution plane groups, forming a non-aligned layout.

3. The nine-lens inspection camera for HUD optical inspection according to claim 2, characterized in that, The preset offset is determined based on the external dimensions and minimum safe distance of adjacent optical imaging units to ensure that the physical structures of adjacent optical imaging units do not come into contact.

4. The nine-lens inspection camera for HUD optical inspection according to claim 2, characterized in that, The optical imaging units in the first and third spatial distribution plane groups are aligned in the horizontal projection direction, while the optical imaging units in the second spatial distribution plane group are staggered relative to the first and third spatial distribution plane groups in the horizontal projection direction, forming an interleaved projection layout.

5. The nine-lens inspection camera for HUD optical inspection according to claim 1, characterized in that, The field-of-view projection areas of the nine optical imaging units form a continuous and blind-spot-free coverage on the surface of the HUD eye box under test, ensuring that each HUD eye box position can be effectively observed by at least one optical imaging unit.

6. The nine-lens inspection camera for HUD optical inspection according to claim 1, characterized in that, The integrated rigid mounting base includes a front housing, a camera support base, and a rear housing that are fixedly connected in sequence.

7. The nine-lens inspection camera for HUD optical inspection according to claim 1, characterized in that, The installation position accuracy of the nine optical imaging units relative to the integrated rigid mounting base is controlled within ±0.15mm in the X, Y, and Z directions.

8. The nine-lens inspection camera for HUD optical inspection according to claim 1, characterized in that, The outer surface of the integrated rigid mounting base is provided with a plurality of heat dissipation through holes around the base. The heat dissipation through holes include: heat dissipation through holes disposed around the outer surface of the mounting base for forming overall convection heat dissipation; and heat dissipation through holes disposed in the structural area between multiple sets of spatial distribution plane groups, wherein the heat dissipation through holes are located between the first spatial distribution plane group and the second spatial distribution plane group, and between the second spatial distribution plane group and the third spatial distribution plane group.

9. A HUD optical inspection system, characterized in that, include: The nine-eye detection camera as described in any one of claims 1 to 8; A multi-axis precision adjustment platform, on which the nine-eye detection camera is fixedly mounted; a control and processing unit, electrically connected to the nine-eye detection camera, for receiving and processing image data acquired by the nine-eye detection camera.

10. The HUD optical inspection system according to claim 9, characterized in that, The multi-axis precision adjustment platform is a five-axis motion platform that can drive the nine-eye detection camera to translate and rotate in space to adjust the camera's spatial pose.

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