Wide-area space target clear imaging method and device
By selecting appropriate focal lengths and lens combinations, and employing a combination of wide-angle and medium-telephoto lenses, the problem of the trade-off between coverage and pixel count in a wide-area space was solved, achieving imaging effects with no blind spots in the entire area and pixel counts at all distances.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-29
- Publication Date
- 2026-04-10
AI Technical Summary
In existing technologies, multi-lens synchronous acquisition, image sensors, and wide-angle/medium-telephoto/telephoto lenses have not yet effectively resolved the contradiction between 'coverage and pixels cannot be achieved simultaneously' in wide-area spaces.
By selecting appropriate focal lengths and lens combinations, and employing at least two sets of wide-angle and medium-telephoto lenses arranged horizontally at intervals, imaging with no blind spots and pixel accuracy across the entire area can be achieved. The control module synchronously controls the lenses to acquire images, and the image output module outputs multiple images.
It achieves imaging with no blind spots and pixel accuracy across the entire area. The system has a simple, scalable, and highly adaptable structure, and is easy to deploy and synchronize.
Smart Images
Figure CN121832046A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of wide-area spatial target sharp imaging technology, specifically to a wide-area spatial target sharp imaging method and apparatus. Background Technology
[0002] In existing technologies, multi-lens simultaneous acquisition, image sensors, and wide-angle / medium-telephoto / telephoto lenses are all mature technologies. However, how to organically combine these technologies to resolve the contradiction between "coverage and pixel count" in wide-area spaces remains an unsolved problem. Summary of the Invention
[0003] The purpose of this invention is to provide a method and apparatus for clear imaging of wide-area spatial targets, which solves the problems mentioned in the background art.
[0004] Technical solution
[0005] To achieve the above objectives, the present invention provides the following technical solution: a method for clear imaging of wide-area spatial targets, comprising the following steps:
[0006] Step S1: Obtain imaging parameters:
[0007] The nearest observation distance L_{\min,\text{space}} in wide-area space;
[0008] The furthest observation distance is L_{\max,\text{space}};
[0009] Space width W;
[0010] The target object's size is W_{\text{obj}};
[0011] Preset pixel density P_{\text{req}};
[0012] The horizontal resolution of the image sensor is R_x.
[0013] Step S2: Select the first focal length f_1 (e.g., wide-angle), calculate its effective coverage range [L_{1,\min},L_{1,\max}], such that the horizontal coverage width at L_{1,\min} is ≥W, and the number of target pixels at L_{1,\max} is ≥P_{\text{req}}.
[0014] Step S3: Determine if L_{1,\max}\geqL_{\max,\text{space}} is true. If true, only the first covering group is needed; if false, proceed to step S4.
[0015] Step S4: Select the second focal length f_2 (e.g., the middle focal length), calculate its effective coverage interval [L_{2,\min},L_{2,\max}], such that L_{2,\min}\leqL_{1,\max} (achieving interval overlap), and L_{2,\max}\geqL_{\max,\text{space}}, while the horizontal coverage width at L_{2,\min} is ≥W.
[0016] Step S5: Based on the number of coverage groups, arrange at least two first focal length lenses (horizontally symmetrical) and at least two second focal length lenses (horizontally symmetrical).
[0017] Step S6: Synchronously control all lenses to acquire images and output the images to the subsequent processing unit.
[0018] Furthermore, the wide-area spatial target clear imaging device includes at least two wide-angle lenses (first coverage group) arranged horizontally at intervals to cover the near-field area.
[0019] Furthermore, the wide-area spatial target clear imaging device includes at least two medium-focal-length lenses (second coverage group), arranged horizontally at intervals, for covering medium- to long-distance areas.
[0020] Furthermore, the wide-area spatial target clear imaging device includes: an image acquisition module electrically connected to the wide-angle lens and the medium telephoto lens for synchronous image acquisition.
[0021] Furthermore, the wide-area spatial target sharp imaging device includes a control module for executing the calculation and control logic in the above imaging method.
[0022] Furthermore, the wide-area spatial target clear imaging device includes: an image output module for outputting multiple images.
[0023] This invention provides a method and apparatus for wide-area, high-resolution imaging of spatial targets. It offers the following advantages:
[0024] This wide-area spatial target clear imaging method and device achieves full-area, blind-spot-free imaging and pixel compliance across all distances through a collaborative architecture of horizontal multi-group stitching and vertical focal length layering. It utilizes at least two wide-angle lenses for close-range full-width coverage and at least two medium-telephoto lenses for mid-to-long-range full-width coverage, ensuring no blind spots laterally. The effective coverage area of each lens group collectively covers the entire space from the nearest to the farthest observation point. Pixel compliance across all distances is achieved: the effective coverage area of each coverage group is precisely calculated based on a preset pixel density, ensuring that the target pixel count at any distance is not lower than required. The system structure is simple and scalable: only a small number of lens groups are needed to meet the requirements, making it easy to deploy and synchronously control. It is highly adaptable: lens parameters and the number of groups can be flexibly configured according to different spatial dimensions, target types, resolutions, and pixel requirements. Attached Figure Description
[0025] Figure 1 This is a system architecture block diagram of the present invention;
[0026] Figure 2 This is a schematic diagram of the physical arrangement of the lens in this invention;
[0027] Figure 3 This is a schematic diagram of the effective coverage area of the present invention. Detailed Implementation
[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.
[0029] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the invention, and should not be construed as limiting the invention.
[0030] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.
[0031] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0032] like Figure 1-3 As shown, this embodiment of the invention provides a method and apparatus for wide-area spatial target sharp imaging, including the following steps:
[0033] Step S1: Obtain imaging parameters:
[0034] The nearest observation distance L_{\min,\text{space}} in wide-area space;
[0035] The furthest observation distance is L_{\max,\text{space}};
[0036] Space width W;
[0037] The target object's size is W_{\text{obj}};
[0038] Preset pixel density P_{\text{req}};
[0039] The horizontal resolution of the image sensor is R_x.
[0040] Step S2: Select the first focal length f_1 (e.g., wide-angle), calculate its effective coverage range [L_{1,\min},L_{1,\max}], such that the horizontal coverage width at L_{1,\min} is ≥W, and the number of target pixels at L_{1,\max} is ≥P_{\text{req}}.
[0041] Step S3: Determine if L_{1,\max}\geqL_{\max,\text{space}} is true. If true, only the first covering group is needed; if false, proceed to step S4.
[0042] Step S4: Select the second focal length f_2 (e.g., the middle focal length), calculate its effective coverage interval [L_{2,\min},L_{2,\max}], such that L_{2,\min}\leqL_{1,\max} (achieving interval overlap), and L_{2,\max}\geqL_{\max,\text{space}}, while the horizontal coverage width at L_{2,\min} is ≥W.
[0043] Step S5: Based on the number of coverage groups, arrange at least two first focal length lenses (horizontally symmetrical) and at least two second focal length lenses (horizontally symmetrical).
[0044] Step S6: Synchronously control all lenses to acquire images and output the images to the subsequent processing unit.
[0045] The wide-area spatial target clear imaging device includes: at least two wide-angle lenses (first coverage group) arranged horizontally at intervals to cover the near-field area.
[0046] The wide-area spatial target sharp imaging device includes at least two medium-telephoto lenses (second coverage group), arranged horizontally at intervals, for covering medium- to long-distance areas.
[0047] The wide-area spatial target clear imaging device includes: an image acquisition module electrically connected to the wide-angle lens and the medium-telephoto lens for synchronous image acquisition.
[0048] The wide-area spatial target sharp imaging device includes a control module for executing the calculation and control logic in the above imaging method.
[0049] The wide-area spatial target clear imaging device includes: an image output module for outputting multiple images, and may also include at least two telephoto lenses (a third coverage group) for covering a greater distance.
[0050] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A method for achieving sharp imaging of wide-area spatial targets, comprising the following steps: Step S1: Obtain imaging parameters: The nearest observation distance L_{\min,\text{space}} in wide-area space; The furthest observation distance is L_{\max,\text{space}}; Space width W; The target object's size is W_{\text{obj}}; Preset pixel density P_{\text{req}}; The horizontal resolution of the image sensor is R_x.
2. Step S2: Select the first focal length f_1 (e.g., wide-angle), calculate its effective coverage range [L_{1,\min},L_{1,\max}], such that the horizontal coverage width at L_{1,\min} is ≥W, and the number of target pixels at L_{1,\max} is ≥P_{\text{req}}.
3. Step S3: Determine if L_{1,\max}\geqL_{\max,\text{space}} is true. If true, only the first covering group is needed; if false, proceed to step S4.
4. Step S4: Select the second focal length f_2 (e.g., the middle focal length), calculate its effective coverage interval [L_{2,\min},L_{2,\max}], such that L_{2,\min}\leqL_{1,\max} (achieving interval overlap), and L_{2,\max}\geqL_{\max,\text{space}}, while the horizontal coverage width at L_{2,\min} is ≥W.
5. Step S5: Based on the number of coverage groups, arrange at least two first focal length lenses (horizontally symmetrical) and at least two second focal length lenses (horizontally symmetrical).
6. Step S6: Synchronously control all lenses to acquire images and output the images to the subsequent processing unit.
7. The wide-area spatial target sharp imaging device according to claim 1, characterized in that: The wide-area spatial target clear imaging device includes at least two wide-angle lenses (first coverage group) arranged horizontally at intervals to cover the near-field area.
8. The wide-area spatial target clear imaging device according to claim 1, characterized in that: The wide-area spatial target clear imaging device includes at least two medium-focal-length lenses (second coverage group), arranged horizontally at intervals, for covering medium- to long-distance areas.
9. A wide-area spatial target sharp imaging device according to claim 1, characterized in that: The wide-area spatial target clear imaging device includes: an image acquisition module electrically connected to the wide-angle lens and the medium-telephoto lens for synchronous image acquisition.
10. A wide-area spatial target sharp imaging device according to claim 1, characterized in that: The wide-area spatial target clear imaging device includes a control module for executing the calculation and control logic in the above imaging method.
11. A wide-area spatial target sharp imaging device according to claim 1, characterized in that: The wide-area spatial target clear imaging device includes: an image output module for outputting multiple images.