WO2017079964A1 - 对多点参照图像识别进行自动调焦的方法及系统 - Google Patents

对多点参照图像识别进行自动调焦的方法及系统 Download PDF

Info

Publication number
WO2017079964A1
WO2017079964A1 PCT/CN2015/094519 CN2015094519W WO2017079964A1 WO 2017079964 A1 WO2017079964 A1 WO 2017079964A1 CN 2015094519 W CN2015094519 W CN 2015094519W WO 2017079964 A1 WO2017079964 A1 WO 2017079964A1
Authority
WO
WIPO (PCT)
Prior art keywords
point reference
reference image
image
focusing
distributed
Prior art date
Application number
PCT/CN2015/094519
Other languages
English (en)
French (fr)
Inventor
那庆林
麦浩晃
黄彦
Original Assignee
神画科技(深圳)有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 神画科技(深圳)有限公司 filed Critical 神画科技(深圳)有限公司
Priority to PCT/CN2015/094519 priority Critical patent/WO2017079964A1/zh
Publication of WO2017079964A1 publication Critical patent/WO2017079964A1/zh

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/28Systems for automatic generation of focusing signals
    • G02B7/36Systems for automatic generation of focusing signals using image sharpness techniques, e.g. image processing techniques for generating autofocus signals
    • G02B7/38Systems for automatic generation of focusing signals using image sharpness techniques, e.g. image processing techniques for generating autofocus signals measured at different points on the optical axis, e.g. focussing on two or more planes and comparing image data
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00Projectors or projection-type viewers; Accessories therefor
    • G03B21/14Details
    • G03B21/53Means for automatic focusing, e.g. to compensate thermal effects

Definitions

  • the present invention relates to projection systems, and more particularly to a method and system for autofocusing multipoint reference image recognition.
  • the autofocus technology applied to projection has two methods: ranging method and image analysis method.
  • image analysis method a focus reference image is mainly projected in the center of the projection image, and is analyzed and thrown.
  • the reference image is in sharpness condition while the auto focus process is completed.
  • the technical problem to be solved by the present invention is to provide a method and system for automatically focusing a multi-point reference image recognition.
  • the technical solution adopted by the present invention to solve the technical problem thereof is: constructing a method for automatically focusing on multi-point reference image recognition, comprising the following steps:
  • S1 depositing a multi-point reference image distributed at different points on a predetermined projection surface
  • S2 driving the focus lens assembly to change the focus state to adjust the focal length of the projection
  • S4 obtaining, according to image information of different focal lengths, a sharpest focusing parameter of the multi-point reference image
  • S5 adjusting the focus lens component to correspond according to the most sharp focus adjustment parameter of the multi-point reference image Focusing state.
  • step S3 Preferably, in the step S3:
  • the focus lens assembly adjusts the focal length to obtain an image of the multi-point reference image with different focal lengths.
  • the multi-point reference image comprises a text, a grid, an image feature in a checkerboard or a combination of a plurality of image features.
  • the multi-point reference image is an overall image that fills the projection surface.
  • the multi-point reference image is a visible light image and/or an infrared light image.
  • the multi-point reference image includes at least two sub-images distributed in different regions of the projection surface
  • the multi-point reference image comprises five sub-images distributed in different regions of the projection surface, wherein four sub-images are distributed in a rectangle, and the other sub-image is located in a center of four rectangular-distributed sub-images.
  • the multi-point reference image includes nine sub-images distributed in different regions of the projection surface, and is evenly distributed in a matrix arrangement of 3 ⁇ 3.
  • the present invention also constructs a system for automatically focusing a multi-point reference image recognition, comprising:
  • a projection module configured to cast a multi-point reference image distributed at different points on a predetermined projection surface
  • a first driving module configured to drive a focus lens assembly to adjust a focus state of the focus adjustment projection, to transform the sharpness of the multi-point reference graphic
  • a monitoring module configured to acquire image information of the multi-point reference image with different focal lengths
  • an optimal parameter obtaining module configured to obtain, according to the image information of different focal lengths, a sharpest focusing parameter of the multi-point reference image
  • the second driving module adjusts the focusing lens assembly to a corresponding focusing state according to a sharpest focusing parameter.
  • the monitoring module actually acquires image information of the multi-point reference image with different focal lengths.
  • the multi-point reference image includes a combination of text, a grid, an image feature in a checkerboard, or a plurality of image features; or
  • the multi-point reference image includes at least two sub-images distributed in different regions of the projection surface; or, [0028] the multi-point reference image is an overall image that fills the projection surface; or [0029] The multi-point reference image is a visible light image and/or an infrared light image.
  • the method and system for performing automatic focus adjustment for multi-point reference image recognition according to the present invention have the following advantageous effects:
  • the method and system for automatically focusing a multi-point reference image recognition according to the present invention are based on the multi-point reference
  • the sharpest focusing parameter of the image adjusts the focusing lens component to the corresponding focusing state, and the focus is more accurate through multi-point focusing, so that the resolution of the projected image on the projection surface is uniform, and the overall appearance is more clear. .
  • FIG. 1 is a schematic diagram of a multi-point reference image projected to a projection surface including five sub-images ⁇ for a method of automatically focusing a multi-point reference image recognition in an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a method for automatically focusing a multi-point reference image recognition in the embodiment of the present invention, and a multi-point reference image projected to a projection surface includes nine sub-images ;;
  • FIG. 3 is a schematic diagram showing a multi-point reference image projected to a projection surface as an overall image frame by a method of automatically focusing a multi-point reference image recognition according to an embodiment of the present invention
  • FIG. 4 is a flow chart showing the steps of a method for automatically focusing a multi-point reference image recognition in an embodiment of the present invention.
  • a system for automatically focusing a multi-point reference image recognition in a preferred embodiment of the present invention includes: a projection module, configured to cast at a predetermined projection surface S at different points a multi-point reference image; a first driving module, configured to drive the focus lens assembly 1 to adjust a focus state to adjust a focal length of the projection to change the sharpness of the multi-point reference graphic; and a monitoring module for acquiring different focal lengths and multi-point reference images of Image information; an optimal parameter acquisition module, configured to obtain a sharpest focusing parameter of the multi-point reference image according to image information of different focal lengths; a second driving module, the focusing lens component according to the clearest focusing parameter 1 Adjust to the corresponding focus state.
  • the indicator and algorithm determined by the optimal parameter acquisition module may be preset.
  • the system for auto-focusing multi-point reference image recognition automates the focusing process by recognizing the multi-point reference image, and the focusing process is automated, and the focus is more accurate.
  • the monitoring module obtains image information of different focal lengths and multi-point reference images, so that the result of focusing is more accurate, and the image projected on the projection surface is uniform in resolution, and the overall appearance is more clear.
  • the focus lens assembly 1 includes a focus lens, and the first drive module, the second drive module controls a stepping motor or a servo motor to drive the focus lens assembly 1 to move in the projection direction to adjust the focal length of the projection.
  • the focusing lens assembly 1 can also be formed by combining a plurality of focusing lenses, and the stepping motor or the servo motor can also be used to drive the partial focusing lens to move in the projection direction to adjust the focal length of the projection.
  • the multi-point reference image includes a text, a grid, an image feature in a checkerboard, or a combination of multiple image features.
  • the number of image features may be one, displayed in an area of the projection surface S, covering a plurality of points of the projection surface S; the number of image features may also be multiple, distributed in Different areas of the projection surface S.
  • the multi-point reference image includes a plurality of image features, a plurality of image features may be distributed in different regions of the projection surface S or may be superimposed on the projection surface S.
  • the multi-point reference image includes at least two sub-images A distributed in different regions of the projection surface S, and the sub-image A may be one or a combination of characters, grids, checkers, The content and size of the sub-image A may be the same or different.
  • the multi-point reference image includes five sub-images A distributed in different regions of the projection plane S, wherein four sub-images A are rectangularly distributed, and the other sub-image A is located at the center of four rectangular-distributed sub-images A.
  • the multi-point reference image includes nine sub-images A distributed in different regions of the projection surface S, and is evenly distributed in a matrix arrangement of 3X3.
  • the multi-point reference image is an overall image that fills the projection surface S.
  • the overall image may be a grid, a checkerboard or a text, or a combination of various types.
  • the monitoring module acquires image information by sensing an image after the monitoring lens 2 and the monitoring sensor for sensing the multi-point reference image.
  • the multi-point reference image can be a visible light image, correspondingly, the monitoring sensor includes visible Light sensor.
  • the multi-point reference image may also be an infrared light image.
  • the monitoring sensor includes an infrared light sensor.
  • the multi-point reference image may also be a combination of a visible light image and an infrared light image.
  • the monitoring sensor includes a combination of a visible light sensor and an infrared light sensor.
  • the multi-point reference image may be applied to an auto-focusing method, and the method for automatically focusing a multi-point reference image recognition includes the following steps:
  • S1 depositing a multi-point reference image distributed at different points on a predetermined projection surface S;
  • S2 driving the focus lens assembly 1 shifting the focus state to adjust the focal length of the projection
  • S3 acquiring image information of different focal lengths and multi-point reference images
  • S4 obtaining, according to image information of different focal lengths, a sharpest focusing parameter of the multi-point reference image
  • S5 Adjust the focus lens assembly 1 to the corresponding focus state according to the most sharp focus adjustment parameter of the multi-point reference image.
  • Focusing lens unit 1 Adjust to the sharpest state of the projected image, complete auto focus, and multi-point reference image to make the sharpness of each part of the picture after focusing.
  • step S3 in order to make the obtained image information more comprehensive, in step S3:
  • the focus lens assembly 1 adjusts the focal length to obtain image information of different focal lengths and multi-point reference images, so that the result of focusing is more accurate.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Optics & Photonics (AREA)
  • Studio Devices (AREA)

Abstract

对多点参照图像识别进行自动调焦的方法及系统,方法包括:(S1)在预定的投影面(S)上投出分布在不同点的多点参照图像;(S2)驱动调焦镜头组件(1)变换调焦状态调整投影的焦距;(S3)获取不同焦距时多点参照图像的图像信息;(S4)根据不同焦距时的图像信息得出多点参照图像最清晰时的调焦参数;(S5)根据多点参照图像最清晰时的调焦参数将调焦镜头组件(1)调到对应的调焦状态。通过多点对焦,对焦更加准确,使投影面上投影的图像分辨率均匀,整体看起来更清晰。

Description

对多点参照图像识别进行自动调焦的方法及系统 技术领域
[0001] 本发明涉及投影系统, 更具体地说, 涉及一种对多点参照图像识别进行自动调 焦的方法及系统。
背景技术
[0002] 当前应用于投影上的自动调焦技术, 有测距法和图像分析法两种, 在图像分析 法中, 主要是在投影画面中心区域投出一调焦参考图像, 通过分析投出的参考 图像清晰度状况, 而完成自动调焦过程。
[0003] 采用该方法有一个先决条件, 那就是对投影镜头的成像分辨率要求很高, 整个 投影画面都要求非常清晰, 但由于零件精度及装配误差等因素, 在批量生产吋 , 投影镜头的分辨率在中心位置要好于四周位置, 所以采用这种方法来自动调 焦, 往往会造成投影画面中心很清晰, 而边角模糊, 没有达到整体观看的效果 。 因而需要采用多点图像分析方法, 来避免这种情况发生, 使自动调焦后的图 像分辨率比较均匀, 整体效果最佳。
技术问题
[0004] 本发明要解决的技术问题在于, 提供一种对多点参照图像识别进行自动调焦的 方法及系统。
问题的解决方案
技术解决方案
[0005] 本发明解决其技术问题所采用的技术方案是: 构造一种对多点参照图像识别进 行自动调焦的方法, 包括以下步骤:
[0006] S1 : 在预定的投影面上投出分布在不同点的多点参照图像;
[0007] S2: 驱动调焦镜头组件变换调焦状态调整投影的焦距;
[0008] S3: 获取不同焦距吋所述多点参照图像的图像信息;
[0009] S4: 根据不同焦距吋的图像信息得出所述多点参照图像最清晰吋的调焦参数;
[0010] S5: 根据所述多点参照图像最清晰吋的调焦参数将所述调焦镜头组件调到对应 的调焦状态。
[0011] 优选地, 所述步骤 S3中:
[0012] 在所述调焦镜头组件调整焦距吋实吋获取不同焦距吋所述多点参照图像的图像 f π息。
[0013] 优选地, 所述多点参照图像包括文字、 网格、 棋盘格中的一种图像特征或多种 图像特征的组合。
[0014] 优选地, 所述多点参照图像是布满所述投影面的整体图像。
[0015] 优选地, 所述多点参照图像为可见光图像和 /或红外光图像。
[0016] 优选地, 所述多点参照图像包括至少两个分布于所述投影面不同区域的子图像
[0017] 优选地, 所述多点参照图像包括五个分布于所述投影面不同区域的子图像, 其 中四个子图像呈矩形分布, 另一个子图像位于四个矩形分布的子图像中心。
[0018] 优选地, 所述多点参照图像包括九个分布于所述投影面不同区域的子图像, 且 呈 3X3的矩阵排布方式均匀分布。
[0019] 本发明还构造一种对多点参照图像识别进行自动调焦的系统, 包括:
[0020] 投影模块, 用于在预定的投影面上投出分布在不同点的多点参照图像;
[0021] 第一驱动模块, 用于驱动调焦镜头组件变换调焦状态调整投影的焦距, 以变换 所述多点参照图形的清晰度;
[0022] 监控模块, 用于获取不同焦距吋所述多点参照图像的图像信息;
[0023] 最佳参数获取模块, 用于根据不同焦距吋的所述图像信息得出所述多点参照图 像最清晰吋的调焦参数;
[0024] 第二驱动模块, 根据最清晰吋的调焦参数将所述调焦镜头组件调到对应的调焦 状态。
[0025] 优选地, 所述监控模块实吋获取不同焦距吋所述多点参照图像的图像信息。
[0026] 优选地, 所述多点参照图像包括文字、 网格、 棋盘格中的一种图像特征或多种 图像特征的组合; 或,
[0027] 所述多点参照图像包括至少两个分布于所述投影面不同区域的子图像; 或, [0028] 所述多点参照图像是布满所述投影面的整体图像; 或, [0029] 所述多点参照图像为可见光图像和 /或红外光图像。
发明的有益效果
有益效果
[0030] 实施本发明的对多点参照图像识别进行自动调焦的方法及系统, 具有以下有益 效果: 本发明的对多点参照图像识别进行自动调焦的方法及系统根据所述多点 参照图像最清晰吋的调焦参数将所述调焦镜头组件调到对应的调焦状态, 通过 多点对焦, 让对焦更加准确, 使投影面上投影的图像分辨率均匀, 整体看起来 更加的清晰。
对附图的简要说明
附图说明
[0031] 下面将结合附图及实施例对本发明作进一步说明, 附图中:
[0032] 图 1是本发明实施例中的对多点参照图像识别进行自动调焦的方法向投影面投 出的多点参照图像包括五个子图像吋的示意图;
[0033] 图 2是本发明实施例中的对多点参照图像识别进行自动调焦的方法向投影面投 出的多点参照图像包括九个子图像吋的示意图;
[0034] 图 3是本发明实施例中的对多点参照图像识别进行自动调焦的方法向投影面投 出的多点参照图像为整体图像吋的示意图;
[0035] 图 4是本发明实施例中的对多点参照图像识别进行自动调焦的方法的步骤流程 图。
实施该发明的最佳实施例
本发明的最佳实施方式
[0036] 为了对本发明的技术特征、 目的和效果有更加清楚的理解, 现对照附图详细说 明本发明的具体实施方式。
[0037] 如图 1所示, 本发明一个优选实施例中的对多点参照图像识别进行自动调焦的 系统包括: 投影模块, 用于在预定的投影面 S上投出分布在不同点的多点参照图 像; 第一驱动模块, 用于驱动调焦镜头组件 1变换调焦状态调整投影的焦距, 以 变换多点参照图形的清晰度; 监控模块, 用于获取不同焦距吋多点参照图像的 图像信息; 最佳参数获取模块, 用于根据不同焦距吋的图像信息得出多点参照 图像最清晰吋的调焦参数; 第二驱动模块, 根据最清晰吋的调焦参数将调焦镜 头组件 1调到对应的调焦状态。 进一步地, 最佳参数获取模块判断的指标、 算法 可以预先设定。 对多点参照图像识别进行自动调焦的系统通过对多点参照图像 识别以进行自动调焦, 让调焦过程实现自动化, 且对焦更加准确。 优选地, 监 控模块实吋获取不同焦距吋多点参照图像的图像信息, 让调焦的结果更加准确 , 使投影面上投影的图像分辨率均匀, 整体看起来更加的清晰。
[0038] 调焦镜头组件 1包括一个调焦镜头, 第一驱动模块、 第二驱动模块控制步进马 达或伺服马达等驱动调焦镜头组件 1在投影方向移动, 以调整投影的焦距。 调焦 镜头组件 1也可包括多个调焦镜头组合形成, 步进马达或伺服马达也可用于驱动 部分调焦镜头在投影方向移动, 以调整投影的焦距。
[0039] 在一些实施例中, 多点参照图像包括文字、 网格、 棋盘格中的一种图像特征或 多种图像特征的组合。 当多点参照图像包括一种图像特征吋, 图像特征的数量 可以为一个, 显示在投影面 S的一个区域, 覆盖投影面 S的多个点; 图像特征的 数量也可为多个, 分布于投影面 S不同的区域。 当多点参照图像包括多种图像特 征吋, 多种图像特征可以分布于投影面 S的不同区域, 也可重合显示在投影面 S 上。
[0040] 在一些实施例中, 多点参照图像包括至少两个分布于所述投影面 S不同区域的 子图像 A, 子图像 A可以是文字、 网格、 棋盘中的一种或组合, 各子图像 A的内 容和大小可以相同, 也可不同。 结合图 1所示, 多点参照图像包括五个分布于投 影面 S不同区域的子图像 A, 其中四个子图像 A呈矩形分布, 另一个子图像 A位于 四个矩形分布的子图像 A中心。 结合图 2所示, 在其他实施例中, 多点参照图像 包括九个分布于投影面 S不同区域的子图像 A, 且呈 3X3的矩阵排布方式均匀分 布。
[0041] 结合图 3所示, 在其他实施例中, 多点参照图像是布满投影面 S的整体图像, 整 体图形可以是网格, 也可以是棋盘或文字, 或者是多种的组合。
[0042] 监控模块通过在监控镜头 2和用于感测多点参照图像的监控传感器感测图像后 获取图像信息。 多点参照图像可为可见光图像, 对应的, 监控传感器包括可见 光传感器。 多点参照图像也可为红外光图像, 对应的, 监控传感器包括红外光 传感器。 多点参照图像也可为可见光图像和红外光图像的组合, 对应的, 监控 传感器包括可见光传感器和红外光传感器的组合。
[0043] 如图 4所示, 进一步地, 上述多点参照图像可应用到自动调焦方法中, 对多点 参照图像识别进行自动调焦的方法包括以下步骤:
[0044] S1 : 在预定的投影面 S上投出分布在不同点的多点参照图像;
[0045] S2:驱动调焦镜头组件 1变换调焦状态调整投影的焦距;
[0046] S3: 获取不同焦距吋多点参照图像的图像信息;
[0047] S4:根据不同焦距吋的图像信息得出多点参照图像最清晰吋的调焦参数;
[0048] S5:根据多点参照图像最清晰吋的调焦参数将调焦镜头组件 1调到对应的调焦状 态。 调焦镜头组件 1调整到在投影图像最清晰状态, 完成自动调焦, 通过多点参 照图像, 可让对焦后的画面各个部分的清晰度均匀。
[0049] 优选地, 为了使获得的图像信息更加的全面, 步骤 S3中:
[0050] 在调焦镜头组件 1调整焦距吋实吋获取不同焦距吋多点参照图像的图像信息, 使调焦的结果更加准确。
[0051] 可以理解地, 上述各技术特征可以任意组合使用而不受限制。
[0052] 以上所述仅为本发明的实施例, 并非因此限制本发明的专利范围, 凡是利用本 发明说明书及附图内容所作的等效结构或等效流程变换, 或直接或间接运用在 其他相关的技术领域, 均同理包括在本发明的专利保护范围内。

Claims

权利要求书
一种对多点参照图像识别进行自动调焦的方法, 其特征在于, 包括以 下步骤:
S1 : 在预定的投影面 (S) 上投出分布在不同点的多点参照图像;
S2:驱动调焦镜头组件 (1) 变换调焦状态调整投影的焦距;
S3:获取不同焦距吋所述多点参照图像的图像信息;
S4:根据不同焦距吋的图像信息得出所述多点参照图像最清晰吋的调 焦参数;
S5:根据所述多点参照图像最清晰吋的调焦参数将所述调焦镜头组件
( 1) 调到对应的调焦状态。
根据权利要求 1所述的对多点参照图像识别进行自动调焦的方法, 其 特征在于, 所述步骤 S3中:
在所述调焦镜头组件 (1) 调整焦距吋实吋获取不同焦距吋所述多点 参照图像的图像信息。
根据权利要求 1或 2所述的对多点参照图像识别进行自动调焦的方法, 其特征在于, 所述多点参照图像包括文字、 网格、 棋盘格中的一种图 像特征或多种图像特征的组合; 或,
所述多点参照图像是布满所述投影面 (S) 的整体图像; 或, 所述多点参照图像为可见光图像和 /或红外光图像。
根据权利要求 1或 2所述的对多点参照图像识别进行自动调焦的方法, 其特征在于, 所述多点参照图像包括至少两个分布于所述投影面 (S ) 不同区域的子图像 (A) 。
根据权利要求 4所述的对多点参照图像识别进行自动调焦的方法, 其 特征在于, 所述多点参照图像包括五个分布于所述投影面 (S) 不同 区域的子图像 (A) , 其中四个子图像 (A) 呈矩形分布, 另一个子 图像 (A) 位于四个矩形分布的子图像 (A) 中心。
根据权利要求 4所述的对多点参照图像识别进行自动调焦的方法, 其 特征在于, 所述多点参照图像包括九个分布于所述投影面 (S) 不同 区域的子图像 (A) , 且呈 3X3的矩阵排布方式均匀分布。
[权利要求 7] —种对多点参照图像识别进行自动调焦的系统, 其特征在于, 包括: 投影模块, 用于在预定的投影面 (S) 上投出分布在不同点的多点参 照图像;
第一驱动模块, 用于驱动调焦镜头组件 (1) 变换调焦状态调整投影 的焦距, 以变换所述多点参照图形的清晰度;
监控模块, 用于获取不同焦距吋所述多点参照图像的图像信息; 最佳参数获取模块, 用于根据不同焦距吋的所述图像信息得出所述多 点参照图像最清晰吋的调焦参数;
第二驱动模块, 根据最清晰吋的调焦参数将所述调焦镜头组件 (1) 调到对应的调焦状态。
[权利要求 8] 根据权利要求 7所述的对多点参照图像识别进行自动调焦的系统, 其 特征在于, 所述监控模块实吋获取不同焦距吋所述多点参照图像的图 像信息。
[权利要求 9] 根据权利要求 7或 8所述的对多点参照图像识别进行自动调焦的系统, 其特征在于, 所述多点参照图像包括文字、 网格、 棋盘格中的一种图 像特征或多种图像特征的组合; 或,
所述多点参照图像包括至少两个分布于所述投影面 (S) 不同区域的 子图像 (A) ; 或,
所述多点参照图像是布满所述投影面 (S) 的整体图像; 或, 所述多点参照图像为可见光图像和 /或红外光图像。
PCT/CN2015/094519 2015-11-13 2015-11-13 对多点参照图像识别进行自动调焦的方法及系统 WO2017079964A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2015/094519 WO2017079964A1 (zh) 2015-11-13 2015-11-13 对多点参照图像识别进行自动调焦的方法及系统

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2015/094519 WO2017079964A1 (zh) 2015-11-13 2015-11-13 对多点参照图像识别进行自动调焦的方法及系统

Publications (1)

Publication Number Publication Date
WO2017079964A1 true WO2017079964A1 (zh) 2017-05-18

Family

ID=58694623

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/094519 WO2017079964A1 (zh) 2015-11-13 2015-11-13 对多点参照图像识别进行自动调焦的方法及系统

Country Status (1)

Country Link
WO (1) WO2017079964A1 (zh)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6246446B1 (en) * 1996-06-28 2001-06-12 Texas Instruments Incorporated Auto focus system for a SLM based image display system
CN101470246A (zh) * 2007-12-27 2009-07-01 深圳富泰宏精密工业有限公司 投影机自动对焦系统及方法
CN101571665A (zh) * 2008-04-28 2009-11-04 鸿富锦精密工业(深圳)有限公司 投影仪自动对焦装置与自动对焦方法
US20100214540A1 (en) * 2009-02-25 2010-08-26 Canon Kabushiki Kaisha Image projection system with auto-focus
CN102650808A (zh) * 2011-02-25 2012-08-29 三洋电机株式会社 投射型影像显示装置
CN203012335U (zh) * 2012-11-30 2013-06-19 神画科技(深圳)有限公司 自动调焦的投影系统
CN103424974A (zh) * 2012-05-22 2013-12-04 宏碁股份有限公司 投影装置以及对焦方法
CN105301884A (zh) * 2015-11-13 2016-02-03 神画科技(深圳)有限公司 对多点参照图像识别进行自动调焦的方法及系统

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6246446B1 (en) * 1996-06-28 2001-06-12 Texas Instruments Incorporated Auto focus system for a SLM based image display system
CN101470246A (zh) * 2007-12-27 2009-07-01 深圳富泰宏精密工业有限公司 投影机自动对焦系统及方法
CN101571665A (zh) * 2008-04-28 2009-11-04 鸿富锦精密工业(深圳)有限公司 投影仪自动对焦装置与自动对焦方法
US20100214540A1 (en) * 2009-02-25 2010-08-26 Canon Kabushiki Kaisha Image projection system with auto-focus
CN102650808A (zh) * 2011-02-25 2012-08-29 三洋电机株式会社 投射型影像显示装置
CN103424974A (zh) * 2012-05-22 2013-12-04 宏碁股份有限公司 投影装置以及对焦方法
CN203012335U (zh) * 2012-11-30 2013-06-19 神画科技(深圳)有限公司 自动调焦的投影系统
CN105301884A (zh) * 2015-11-13 2016-02-03 神画科技(深圳)有限公司 对多点参照图像识别进行自动调焦的方法及系统

Similar Documents

Publication Publication Date Title
CN105301884A (zh) 对多点参照图像识别进行自动调焦的方法及系统
JP6341736B2 (ja) 撮像装置、制御方法、プログラム、記憶媒体
US8018524B2 (en) Image-pickup method and apparatus having contrast and phase difference forcusing methods wherein a contrast evaluation area is changed based on phase difference detection areas
US9538067B2 (en) Imaging sensor capable of detecting phase difference of focus
WO2018012130A1 (ja) 画像処理方法、画像処理装置、撮像装置および撮像方法
EP2840775B1 (en) Image pickup apparatus, method of controlling image pickup apparatus, program and storage medium
JP6003578B2 (ja) 画像生成方法及び装置
US9088708B2 (en) Image processing device and method for controlling the same
US20150138430A1 (en) Image-capturing apparatus
JP2013026844A (ja) 画像生成方法及び装置、プログラム、記録媒体、並びに電子カメラ
CN105939443B (zh) 一种用于产生物体的图像的光场成像系统和方法
JP2013160832A (ja) 光学機器
CN111064939A (zh) 投影系统及梯形校正方法
DE102012202386B4 (de) Bildaufnahmevorrichtung, bildsignalverarbeitungsvorrichtung und steuerverfahren von bildaufnahmevorrichtung
US20140139645A1 (en) Imaging apparatus
KR20160115682A (ko) 대상에 대하여 공간적으로 가변하는 오토 포커싱을 가능하게 하는 방법 및 이를 이용하는 촬상 시스템
JP6997295B2 (ja) 撮像装置、撮像方法、及びプログラム
JP2006003803A (ja) 合焦情報取得装置及び合焦情報取得方法
US20210067761A1 (en) Dual lens imaging module and capturing method thereof
WO2017079964A1 (zh) 对多点参照图像识别进行自动调焦的方法及系统
JP6330955B2 (ja) 撮像装置及び撮像方法
US20190107705A1 (en) Digital microscope and method for acquiring a stack of microscopic images of a specimen
JP2017153006A (ja) 立体像調整装置及び立体像調整方法
JP4614980B2 (ja) 映像投射位置調整システム、映像投射位置調整方法及び映像投射位置調整プログラム
JP2018157573A (ja) 任意視点画像合成方法及び画像処理装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15908094

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15908094

Country of ref document: EP

Kind code of ref document: A1