WO2019033656A1 - 板书处理方法、装置、设备和计算机可读存储介质 - Google Patents

板书处理方法、装置、设备和计算机可读存储介质 Download PDF

Info

Publication number
WO2019033656A1
WO2019033656A1 PCT/CN2017/116749 CN2017116749W WO2019033656A1 WO 2019033656 A1 WO2019033656 A1 WO 2019033656A1 CN 2017116749 W CN2017116749 W CN 2017116749W WO 2019033656 A1 WO2019033656 A1 WO 2019033656A1
Authority
WO
WIPO (PCT)
Prior art keywords
image
blackboard
board
book
writing
Prior art date
Application number
PCT/CN2017/116749
Other languages
English (en)
French (fr)
Inventor
王东杰
Original Assignee
广州视源电子科技股份有限公司
广州视睿电子科技有限公司
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 广州视源电子科技股份有限公司, 广州视睿电子科技有限公司 filed Critical 广州视源电子科技股份有限公司
Publication of WO2019033656A1 publication Critical patent/WO2019033656A1/zh

Links

Images

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
    • G06V30/10—Character recognition
    • G06V30/32—Digital ink
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B5/00—Electrically-operated educational appliances
    • G09B5/02—Electrically-operated educational appliances with visual presentation of the material to be studied, e.g. using film strip

Definitions

  • the present invention relates to an e-learning technology, and more particularly to a tablet book processing method, apparatus, device, and computer readable storage medium.
  • teaching courseware With the development of science and technology, the teaching method of displaying teaching courseware with projection and intelligent interactive tablet has been applied and promoted.
  • teaching courseware does not reflect the teaching content that the teacher demonstrates during the teaching process, and interacts with the students' thinking, and lacks the practical content that is practical for the students.
  • the invention provides a blackboard book processing method, device, device and computer readable storage medium, which realizes processing and saving the book book content, and records the learning content which is practical for the student.
  • an embodiment of the present invention provides a method for processing a blackboard, which is characterized by comprising:
  • the corresponding valid images are combined into a book record file according to the timing of collecting the book images.
  • an embodiment of the present invention further provides a blackboard book processing device, where the book book processing device includes:
  • An acquisition module configured to collect a blackboard image of the writing board
  • a cutting module configured to cut the blackboard image according to the writing stroke in the blackboard image to obtain an effective image
  • the combination module is configured to combine the corresponding valid images into a blackboard record file according to the timing of collecting the book image.
  • an embodiment of the present invention further provides an apparatus, including:
  • One or more processors are One or more processors;
  • a storage device for storing one or more programs
  • the one or more programs are executed by the one or more processors such that the one or more processors implement the tablet book processing method described above.
  • an embodiment of the present invention further provides a computer readable storage medium, where a computer program is stored, and when the program is executed by the processor, the board processing method described above is implemented.
  • the invention collects the board image of the writing board and performs cutting processing according to the writing handwriting, and obtains the effective board book content, and combines the board book recording file, and can record the board book content which the teacher demonstrates in the classroom according to the student's doubtful point in the file for the student.
  • Embodiment 1 is a flowchart of a method for processing a blackboard provided by Embodiment 1 of the present invention
  • FIG. 2 is a schematic structural diagram of a blackboard book processing apparatus according to Embodiment 2 of the present invention.
  • FIG. 3 is a schematic structural diagram of a device according to Embodiment 3 of the present invention.
  • FIG. 1 is a flowchart of a method for processing a blackboard according to a first embodiment of the present invention.
  • the present embodiment is applicable to the processing and storage of a tablet content of a tablet.
  • the method may be performed by a blackboard processing device, and specifically includes the following steps. 110 to 130:
  • Step 110 Collect a blackboard image of the writing board.
  • the image of the blackboard is the image presented on the surface of the writing board, that is, the image of the blackboard contains the content written by the teacher on the writing board as the teacher interacts with the student in the teaching process.
  • the writing board is an electronic whiteboard provided by the touch screen terminal
  • the touch screen terminal can intercept the closed image formed by the writing area of the electronic whiteboard as a board image on the terminal display interface; if the teaching writing board is a traditional blackboard, the control writing board can be controlled
  • the camera on the surface captures an image to capture the image of the book.
  • the step 110 may include: controlling a blackboard image of the writing board by a camera facing the surface of the writing board according to a preset frequency; calculating a height of a blank writing range below the writing handwriting in the photographed blackboard image; if the blank writing range is When the height is less than the preset first threshold, the blackboard image is acquired.
  • step 110 is specifically: collecting a blackboard image of the tablet when receiving the acquisition instruction triggered by the user's operation.
  • Step 120 Cutting the blackboard image according to the writing stroke in the blackboard image to obtain an effective image
  • the cutting board image is cut according to the writing stroke in the blackboard image, and after detecting the writing handwriting, the smallest rectangular area surrounding the writing handwriting is obtained, and the partial image outside the minimum rectangular area is removed, and the writing handwriting is extracted. , proceed to the next step. It is also possible to crop other partial images of the blackboard image according to the writing stroke according to the requirements of the next processing, for example, cutting a blank writing range above and below the writing handwriting, specifically: detecting the writing handwriting in the graphic image of the blackboard, and obtaining the writing The handwriting is in the ordinate interval in the blackboard image; the partial image outside the ordinate interval in the blackboard image is rejected, and an effective image is obtained.
  • Step 130 Combine the corresponding valid images into a blackboard record file according to the timing of collecting the book image.
  • step 130 After the effective image cropped according to the writing stroke is acquired in step 120, step 130 combines the valid images into a blackboard recording file, for example, into a PDF file that is easy to read.
  • the blank writing range above and below the writing handwriting can be eliminated to obtain a valid image.
  • the effective image can be connected up and down to obtain a blackboard recording file. That is, the step 130 includes: creating a blackboard book record file and adding a valid image corresponding to the first acquired board book image to the board book record file; adding the valid image corresponding to the board book image collected by the Nth time to the board book record file, The board image of the N-1 acquisition is below the effective image.
  • the gap between the two effective images can be eliminated, and a continuous document is formed, which converts the board content into a continuously readable e-book document.
  • the method for processing a blackboard further includes: adjusting, in the effective image, a pixel point having the same color feature value and a color feature value on the surface of the tablet to a preset background color; for example, a transparent color.
  • This step can be performed before the effective images are combined into a book record file, or after the effective images are combined into a book record file. This step makes the handwriting more distinct and readable.
  • step 130 the method further includes:
  • the font format of the text is set to a preset font format.
  • the text can be selected, copied, cut, etc., or The way you can edit the document is saved. Further, it is also possible to perform an alignment operation on the text, such as arranging the text such that the left edge of each line of text is aligned on the same vertical line. Through the above operation, some disorganized blackboard images can be processed into a readable book record file.
  • the technical solution of the embodiment collects the board image of the writing board and performs cutting processing according to the writing handwriting, and obtains effective board contents, and combines them into a board book recording file, so that the teacher can record the board contents in the class according to the student's doubts.
  • students can review after class, solve the problem of providing courseware to students for reviewing in the prior art, lacking practical content of learning, realizing the processing and preservation of the contents of the blackboard, and recording the practical content that is practical for the students. It is convenient for students to review the effects in a targeted manner after class.
  • the board processing apparatus includes:
  • the collecting module 210 is configured to collect a blackboard image of the writing board
  • the cutting module 220 is configured to cut the blackboard image according to the writing stroke in the blackboard image to obtain an effective image
  • the combination module 230 is configured to combine the corresponding valid images into a blackboard record file according to the timing of collecting the book image.
  • the cropping module 220 includes:
  • a detecting unit configured to detect a writing handwriting in the blackboard image, and obtain an ordinate interval of the writing handwriting in the blackboard image
  • a culling unit configured to remove a partial image in the template image outside the ordinate interval to obtain an effective image
  • the combination module 230 includes:
  • a creating module configured to create a blackboard book record file and add a valid image corresponding to the first acquired book book image to the board book record file;
  • the adding module is configured to add the valid image corresponding to the board image acquired by the Nth time to the board record file, and below the effective image corresponding to the board image acquired by the N-1th time.
  • the blackboard processing device further includes:
  • an adjustment module configured to adjust a pixel point of the effective image that has the same color feature value and a color feature value of the surface of the tablet to a preset background color.
  • the blackboard processing device further includes:
  • An identification module configured to identify characters in the valid image
  • a conversion module configured to convert characters in the valid image into text
  • a setting module configured to set a font format of the text to a preset font format
  • An alignment module for arranging the text such that the left edge of each line of text is aligned on the same vertical line.
  • the book book processing device collects a book image by controlling a camera image taken toward the surface of the tablet.
  • the blackboard book processing apparatus provided by the embodiment of the present invention can execute the blackboard book processing method provided by any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the execution method.
  • FIG. 3 is a schematic structural diagram of a device according to Embodiment 3 of the present invention.
  • the device includes a processor 310, a memory 320, an input device 330, and an output device 340.
  • the number of processors 310 in the device may be One or more of the processors 310 are exemplified in FIG. 3; the processor 310, the memory 320, the input device 330, and the output device 340 of the device may be connected by a bus or other means, and the bus connection is taken as an example in FIG.
  • the memory 320 is used as a computer readable storage medium, and can be used to store a software program, a computer executable program, and a module, such as a program instruction/module corresponding to the blackboard processing method in the embodiment of the present invention (for example, an acquisition module in a tablet processing device). 310, crop module 320 and combination module 330).
  • the processor 310 executes various functional applications and data processing of the device by executing software programs, instructions, and modules stored in the memory 320, that is, implementing the above-described blackboard processing method.
  • the memory 320 may mainly include a storage program area and an storage data area, wherein the storage program area may store an operating system, an application required for at least one function; the storage data area may store data created according to usage of the terminal, and the like.
  • memory 320 can include high speed random access memory, and can also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.
  • memory 320 can further include memory remotely located relative to processor 310, which can be connected to the device over a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.
  • Input device 330 can be used to receive input numeric or character information and to generate key signal inputs related to user settings and function controls of the device.
  • the output device 340 can include a display device such as a display screen.
  • the fourth embodiment of the present invention further provides a computer readable storage medium, on which a computer program is stored, and when the program is executed by the processor, the blackboard book processing method described in the foregoing embodiment is implemented.
  • the computer readable storage medium provided by the embodiment of the present invention is not limited to the method operation as described above, and may also perform related operations in the tablet processing method provided by any embodiment of the present invention.
  • the present invention can be implemented by software and necessary general hardware, and can also be implemented by hardware, but in many cases, the former is a better implementation. .
  • the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product, which may be stored in a computer readable storage medium, such as a floppy disk of a computer. , Read-Only Memory (ROM), Random Access Memory (RAM), Flash (FLASH), hard disk or optical disk, etc., including a number of instructions to make a computer device (can be a personal computer)
  • the server, or network device, etc. performs the methods described in various embodiments of the present invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Multimedia (AREA)
  • Drawing Aids And Blackboards (AREA)
  • User Interface Of Digital Computer (AREA)

Abstract

本发明公开了一种板书处理方法，包括：采集书写板的板书图像；根据所述板书图像中的书写笔迹裁剪所述板书图像，得到有效图像；按照采集板书图像的时序将对应的有效图像组合成板书记录文件。相应地，本发明还公开一种板书处理装置、设备和计算机可读存储介质。本发明实现对板书内容进行处理和保存，记录对学生而言实用性强的学习内容。

Description

板书处理方法、装置、设备和计算机可读存储介质 技术领域
本发明涉及电子教学技术，尤其涉及一种板书处理方法、装置、设备和计算机可读存储介质。
背景技术
随着科技的发展，用投影和智能交互平板展示教学课件的教学方法得到了应用和推广。在老师的教学过程中，如果要提供教学内容的记录文件给学生课后复习用，一般都是提供教学课件。但教学课件不能反映老师在教学过程中，随着与学生的思维互动而演示的教学内容，缺失对学生而言实用性强的学习内容。
发明内容
本发明提供一种板书处理方法、装置、设备和计算机可读存储介质，以实现对板书内容进行处理和保存，记录对学生而言实用性强的学习内容。
第一方面，本发明实施例提供了一种板书处理方法，其特征在于，包括：
采集书写板的板书图像；
根据所述板书图像中的书写笔迹裁剪所述板书图像，得到有效图像；
按照采集板书图像的时序将对应的有效图像组合成板书记录文件。
第二方面，本发明实施例还提供了一种板书处理装置，所述板书处理装置包括：
采集模块，用于采集书写板的板书图像；
裁剪模块，用于根据所述板书图像中的书写笔迹裁剪所述板书图像，得到有效图像；
组合模块，用于按照采集板书图像的时序将对应的有效图像组合成板书记录文件。
第三方面，本发明实施例还提供了一种设备，包括：
一个或多个处理器；
存储装置，用于存储一个或多个程序；
当所述一个或多个程序被所述一个或多个处理器执行，使得所述一个或多个处理器实现上述的板书处理方法。
第四方面，本发明实施例还提供了一种计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现上述的板书处理方法。
本发明通过采集书写板的板书图像并根据书写笔迹进行裁剪处理，得到有效的板书内容，组合成板书记录文件，可以将老师在课堂上根据学生的疑点而演示的板书内容记录在文件中供学生课后复习用，解决现有技术提供课件给学生复习，缺少实用性强的学习内容的问题，实现对板书内容进行处理和保存，记录对学生而言实用性强的学习内容，便于学生课后针对性地进行复习的效果。
附图说明
图1是本发明实施例一提供的板书处理方法的流程图；
图2是本发明实施例二提供的板书处理装置的结构示意图；
图3是本发明实施例三提供的设备的结构示意图。
具体实施方式
下面结合附图和实施例对本发明作进一步的详细说明。可以理解的是，此处所描述的具体实施例仅仅用于解释本发明，而非对本发明的限定。另外还需要说明的是，为了便于描述，附图中仅示出了与本发明相关的部分而非全部结构。
实施例一
图1为本发明实施例一提供的板书处理方法的流程图，本实施例可适用于对书写板的板书内容进行处理和保存的情况，该方法可以由板书处理装置来执行，具体包括如下步骤110至130：
步骤110、采集书写板的板书图像。
其中，板书图像为书写板表面呈现的图像，即板书图像包含了老师在教学过程中随着与学生的互动，在书写板上书写的内容。
具体地，采集书写板的板书图像有多种方式。若书写板为触摸屏终端提供的电子白板，则触摸屏终端可以通过在终端显示界面上截取电子白板的书写区域形成的封闭图像作为板书图像；若教学书写板为传统黑板，则可通过控制朝向书写板表面的摄像头拍摄图像来采集板书图像。
在具体实施时，可以实现自动采集书写板的板书图像，例如，控制朝向书写板表面的摄像头以预设的频率采集板书图像。进一步地，为了使采集的板书图像之间，减少重复的内容，可以在采集过程中对采集到的板书图像进行取舍筛选。例如，步骤110可包括：按照预设的频率控制朝向书写板表面的摄像头拍摄书写板的板书图像；计算拍摄的板书图像中，书写笔迹下方的空白书写范围的高度；如果所述空白书写范围的高度小于预设的第一阈值，则采集所述板 书图像。
或者，也可以根据用户的操作触发采集书写板的板书图像，使对板书图像的采集更准确有效，避免采集到重复内容。即步骤110具体为：在接收到由用户的操作触发的采集指令时，采集书写板的板书图像。
步骤120、根据所述板书图像中的书写笔迹裁剪所述板书图像，得到有效图像；
其中，根据所述板书图像中的书写笔迹裁剪所述板书图像，可以是在检测书写笔迹后，得到包围所述书写笔迹的最小矩形区域，剔除掉最小矩形区域外的局部图像，提取到书写笔迹，进行下一步处理。也可以根据下一步处理的需求，根据书写笔迹裁剪所述板书图像的其他局部图像，例如裁剪书写笔迹上下方的空白书写范围，具体为：检测所述板书图像中的书写笔迹，得到所述书写笔迹在所述板书图像中的纵坐标区间；剔除所述板书图像中处于所述纵坐标区间外的局部图像，得到有效图像。
步骤130、按照采集板书图像的时序将对应的有效图像组合成板书记录文件。
在步骤120获取了根据书写笔迹裁剪后的有效图像后，步骤130将有效图像组合成板书记录文件，例如组合成便于阅读的PDF文件。在步骤120中，可剔除书写笔迹上下方的空白书写范围得到有效图像，在此之后，可将有效图像上下相连拼接得到板书记录文件。即步骤130包括：创建板书记录文件并添加第一次采集的板书图像对应的有效图像到所述板书记录文件中；将第N次采集的板书图像对应的有效图像添加至板书记录文件中，第N-1次采集的板书图像对应的有效图像下方。
将有效图像上下相连拼接得到板书记录文件后，可以消除两张有效图像之间的间隙，形成连续的文档，即将板书内容转化成可连续阅读的电子书文档。
进一步地，本实施例提供的板书处理方法还包括：将所述有效图像中，色彩特征值与书写板表面的色彩特征值相同的像素点调成预先设定的背景色；例如透明色。该步骤可在有效图像组合成板书记录文件之前执行，也可以在有效图像组合成板书记录文件之后执行。该步骤可以使笔迹更分明，可读性更好。
更进一步地，在步骤130之后，还包括：
识别所述有效图像中的字符；
将所述有效图像中的字符转换为文本；
将所述文本的字体格式设置为预先设定的字体格式。
通过识别有效图像中的字符，将有效图像中的字符转换为文本，并调整文本格式，使得板书记录文件以标准的文本格式呈现，可以对文本进行选择、复制、剪切等操作，也可以以可编辑文档的方式保存。进一步地，也可以对文本进行对齐操作，例如排布所述文本，使得每一行文本的左边沿对齐在同一竖向直线上。通过上述操作，可将一些杂乱无章的板书图像处理成可读性好的板书记录文件。
本实施例的技术方案，通过采集书写板的板书图像并根据书写笔迹进行裁剪处理，得到有效的板书内容，组合成板书记录文件，可以将老师在课堂上根据学生的疑点而演示的板书内容记录在文件中供学生课后复习用，解决现有技术提供课件给学生复习，缺少实用性强的学习内容的问题，实现对板书内容进行处理和保存，记录对学生而言实用性强的学习内容，便于学生课后针对性地进行复习的效果。
实施例二
图2为本发明实施例二提供的板书处理装置的结构示意，本实施例可适用于对书写板的板书内容进行处理和保存的情况，该板书处理装置包括：
采集模块210，用于采集书写板的板书图像；
裁剪模块220，用于根据所述板书图像中的书写笔迹裁剪所述板书图像，得到有效图像；
组合模块230，用于按照采集板书图像的时序将对应的有效图像组合成板书记录文件。
作为其中一种实施方式，所述裁剪模块220包括：
检测单元，用于检测所述板书图像中的书写笔迹，得到所述书写笔迹在所述板书图像中的纵坐标区间；
剔除单元，用于剔除所述板书图像中处于所述纵坐标区间外的局部图像，得到有效图像；
所述组合模块230包括：
创建模块，用于创建板书记录文件并添加第一次采集的板书图像对应的有效图像到所述板书记录文件中；
添加模块，用于将第N次采集的板书图像对应的有效图像添加至板书记录文件中，第N-1次采集的板书图像对应的有效图像下方。
进一步地，所述板书处理装置还包括：
调整模块，用于将所述有效图像中，色彩特征值与书写板表面的色彩特征值相同的像素点调成预先设定的背景色。
进一步地，所述板书处理装置还包括：
识别模块，用于识别所述有效图像中的字符；
转换模块，用于将所述有效图像中的字符转换为文本；
设置模块，用于将所述文本的字体格式设置为预先设定的字体格式；
对齐模块，用于排布所述文本，使得每一行文本的左边沿对齐在同一竖向直线上。
进一步地，所述板书处理装置通过控制朝向书写板表面的摄像头拍摄图像进行采集板书图像。
本发明实施例所提供的板书处理装置可执行本发明任意实施例所提供的板书处理方法，具备执行方法相应的功能模块和有益效果。
实施例三
图3为本发明实施例三提供的一种设备的结构示意图，如图3所示，该设备包括处理器310、存储器320、输入装置330和输出装置340；设备中处理器310的数量可以是一个或多个，图3中以一个处理器310为例；设备的处理器310、存储器320、输入装置330和输出装置340可以通过总线或其他方式连接，图3中以通过总线连接为例。
存储器320作为一种计算机可读存储介质，可用于存储软件程序、计算机可执行程序以及模块，如本发明实施例中的板书处理方法对应的程序指令/模块(例如，板书处理装置中的采集模块310、裁剪模块320和组合模块330)。处理器310通过运行存储在存储器320中的软件程序、指令以及模块，从而执行设备的各种功能应用以及数据处理，即实现上述的板书处理方法。
存储器320可主要包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序；存储数据区可存储根据终端的使用所创建的数据等。此外，存储器320可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。在一些实例中，存储器320可进一步包括相对于处理器310远程设置的存储器，这些远程存储器可以通过网络连接至设备。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。
输入装置330可用于接收输入的数字或字符信息，以及产生与设备的用户设置以及功能控制有关的键信号输入。输出装置340可包括显示屏等显示设备。
实施例四
本发明实施例四还提供一种计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现上述实施例所述的板书处理方法。
当然，本发明实施例所提供的一种计算机可读存储介质，其计算机程序不限于如上所述的方法操作，还可以执行本发明任意实施例所提供的板书处理方法中的相关操作。
通过以上关于实施方式的描述，所属领域的技术人员可以清楚地了解到，本发明可借助软件及必需的通用硬件来实现，当然也可以通过硬件实现，但很多情况下前者是更佳的实施方式。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品可以存储在计算机可读存储介质中，如计算机的软盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、 闪存(FLASH)、硬盘或光盘等，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本发明各个实施例所述的方法。
值得注意的是，上述板书处理装置的实施例中，所包括的各个单元和模块只是按照功能逻辑进行划分的，但并不局限于上述的划分，只要能够实现相应的功能即可；另外，各功能单元的具体名称也只是为了便于相互区分，并不用于限制本发明的保护范围。
注意，上述仅为本发明的较佳实施例及所运用技术原理。本领域技术人员会理解，本发明不限于这里所述的特定实施例，对本领域技术人员来说能够进行各种明显的变化、重新调整和替代而不会脱离本发明的保护范围。因此，虽然通过以上实施例对本发明进行了较为详细的说明，但是本发明不仅仅限于以上实施例，在不脱离本发明构思的情况下，还可以包括更多其他等效实施例，而本发明的范围由所附的权利要求范围决定。

Claims (10)

  1. 一种板书处理方法，其特征在于，包括：
    采集书写板的板书图像；
    根据所述板书图像中的书写笔迹裁剪所述板书图像，得到有效图像；
    按照采集板书图像的时序将对应的有效图像组合成板书记录文件。
  2. 如权利要求1所述的板书处理方法，其特征在于，所述根据所述板书图像中的书写笔迹裁剪所述板书图像，得到有效图像，具体包括：
    检测所述板书图像中的书写笔迹，得到所述书写笔迹在所述板书图像中的纵坐标区间；
    剔除所述板书图像中处于所述纵坐标区间外的局部图像，得到有效图像；
    所述按照采集板书图像的时序将对应的有效图像组合成板书记录文件，具体包括：
    创建板书记录文件并添加第一次采集的板书图像对应的有效图像到所述板书记录文件中；
    将第N次采集的板书图像对应的有效图像添加至板书记录文件中，第N-1次采集的板书图像对应的有效图像下方。
  3. 如权利要求1或2所述的板书处理方法，其特征在于，所述板书处理方法还包括：
    将所述有效图像中，色彩特征值与书写板表面的色彩特征值相同的像素点调成预先设定的背景色。
  4. 如权利要求1或2所述的板书处理方法，其特征在于，在所述按照采集板书图像的时序将对应的有效图像组合成板书记录文件之后，还包括：
    识别所述有效图像中的字符；
    将所述有效图像中的字符转换为文本；
    将所述文本的字体格式设置为预先设定的字体格式。
  5. 如权利要求4所述的板书处理方法，其特征在于，在所述将所述文本的字体格式设置为预先设定的字体格式之后，还包括：
    排布所述文本，使得每一行文本的左边沿对齐在同一竖向直线上。
  6. 如权利要求1或2所述的板书处理方法，其特征在于，所述板书图像通过控制朝向书写板表面的摄像头拍摄图像进行采集。
  7. 一种板书处理装置，其特征在于，所述板书处理装置包括：
    采集模块，用于采集书写板的板书图像；
    裁剪模块，用于根据所述板书图像中的书写笔迹裁剪所述板书图像，得到有效图像；
    组合模块，用于按照采集板书图像的时序将对应的有效图像组合成板书记录文件。
  8. 如权利要求7所述的板书处理装置，其特征在于，所述裁剪模块包括：
    检测单元，用于检测所述板书图像中的书写笔迹，得到所述书写笔迹在所述板书图像中的纵坐标区间；
    剔除单元，用于剔除所述板书图像中处于所述纵坐标区间外的局部图像，得到有效图像；
    所述组合模块包括：
    创建模块，用于创建板书记录文件并添加第一次采集的板书图像对应的有效图像到所述板书记录文件中；
    添加模块，用于将第N次采集的板书图像对应的有效图像添加至所述板书 记录文件中，第N-1次采集的板书图像对应的有效图像下方。
  9. 一种设备，其特征在于，所述设备包括：
    一个或多个处理器；
    存储装置，用于存储一个或多个程序；
    当所述一个或多个程序被所述一个或多个处理器执行，使得所述一个或多个处理器实现如权利要求1-6中任一所述的板书处理方法。
  10. 一种计算机可读存储介质，其上存储有计算机程序，其特征在于，该程序被处理器执行时实现如权利要求1至6中任一所述的板书处理方法。
PCT/CN2017/116749 2017-08-18 2017-12-17 板书处理方法、装置、设备和计算机可读存储介质 WO2019033656A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710709916.8 2017-08-18
CN201710709916.8A CN107506720A (zh) 2017-08-18 2017-08-18 板书处理方法、装置、设备和计算机可读存储介质

Publications (1)

Publication Number Publication Date
WO2019033656A1 true WO2019033656A1 (zh) 2019-02-21

Family

ID=60691247

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/116749 WO2019033656A1 (zh) 2017-08-18 2017-12-17 板书处理方法、装置、设备和计算机可读存储介质

Country Status (2)

Country Link
CN (1) CN107506720A (zh)
WO (1) WO2019033656A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113326813A (zh) * 2021-07-08 2021-08-31 长春电子科技学院 数学课堂板书电子格式转换方法
CN116012860A (zh) * 2022-12-29 2023-04-25 华南师范大学 一种基于图像识别的教师板书设计水平诊断方法及装置

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108305512A (zh) * 2018-01-05 2018-07-20 珠海向导科技有限公司 一种课堂电子笔记记录系统及方法
CN113168276A (zh) * 2018-12-29 2021-07-23 深圳市柔宇科技股份有限公司 一种笔记局部选取方法、装置、终端及可读存储介质
CN110176049B (zh) * 2019-05-28 2023-04-28 成都依能科技股份有限公司 电子板书生成图片及ppt的方法
CN110347993A (zh) * 2019-07-11 2019-10-18 深圳云智教育科技有限公司 一种板书管理方法及装置
CN111080763A (zh) * 2019-12-26 2020-04-28 珠海金山网络游戏科技有限公司 一种贴图合并方法及装置
CN111355792A (zh) * 2020-02-25 2020-06-30 北京体育大学 一种板书发送方法、系统及触控一体机
CN111881904A (zh) * 2020-07-31 2020-11-03 城云科技（中国）有限公司 板书记录方法和系统
CN114407561B (zh) * 2021-12-23 2023-02-24 湖南铁道职业技术学院 基于AIoT技术的黑板擦试方法及智能黑板擦组件

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050268279A1 (en) * 2004-02-06 2005-12-01 Sequoia Media Group, Lc Automated multimedia object models
CN102982015A (zh) * 2012-11-06 2013-03-20 陆昀 利用电子白板制作电子课件的方法及相应的展现方法
CN104853129A (zh) * 2014-02-13 2015-08-19 广东小天才科技有限公司 一种板书记录方法及系统
CN106778507A (zh) * 2016-11-24 2017-05-31 北京小米移动软件有限公司 文字提取方法及装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102289823B (zh) * 2011-06-14 2014-02-26 汉王科技股份有限公司 获取显示设备上图形面积的方法和装置
US20140354652A1 (en) * 2012-04-27 2014-12-04 Mitsubishi Electric Corporation Character drawing device and character drawing method
CN102855482A (zh) * 2012-08-16 2013-01-02 东莞宇龙通信科技有限公司 图片处理方法及装置
CN104657058A (zh) * 2015-02-06 2015-05-27 深圳市金立通信设备有限公司 一种截图方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050268279A1 (en) * 2004-02-06 2005-12-01 Sequoia Media Group, Lc Automated multimedia object models
CN102982015A (zh) * 2012-11-06 2013-03-20 陆昀 利用电子白板制作电子课件的方法及相应的展现方法
CN104853129A (zh) * 2014-02-13 2015-08-19 广东小天才科技有限公司 一种板书记录方法及系统
CN106778507A (zh) * 2016-11-24 2017-05-31 北京小米移动软件有限公司 文字提取方法及装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113326813A (zh) * 2021-07-08 2021-08-31 长春电子科技学院 数学课堂板书电子格式转换方法
CN113326813B (zh) * 2021-07-08 2022-10-21 长春电子科技学院 数学课堂板书电子格式转换方法
CN116012860A (zh) * 2022-12-29 2023-04-25 华南师范大学 一种基于图像识别的教师板书设计水平诊断方法及装置
CN116012860B (zh) * 2022-12-29 2024-01-16 华南师范大学 一种基于图像识别的教师板书设计水平诊断方法及装置

Also Published As

Publication number Publication date
CN107506720A (zh) 2017-12-22

Similar Documents

Publication Publication Date Title
WO2019033656A1 (zh) 板书处理方法、装置、设备和计算机可读存储介质
US10013643B2 (en) Performing optical character recognition using spatial information of regions within a structured document
WO2019200783A1 (zh) 动态图表类页面数据爬取方法、装置、终端及存储介质
EP2359230B1 (en) Background archiving and presentation method
WO2021051024A1 (en) Editable notetaking resource with optional overlay
JP2017519288A (ja) データ入力方法及び端末
CN111506381B (zh) 一种直播教学中辅助用户进行信息录入的方法及装置
WO2022161293A1 (zh) 图像处理方法及装置、电子设备和存储介质
CN105427696A (zh) 一种对目标题目所作答案进行判别的方法
CN111881904A (zh) 板书记录方法和系统
CN113537801B (zh) 板书处理方法、装置、终端和存储介质
CN107423407B (zh) 教学信息记录方法、装置、终端和计算机可读存储介质
CN110889406B (zh) 一种习题数据卡的信息采集方法、系统及终端
WO2017206248A1 (zh) 一种信息输入方法和装置
WO2019033660A1 (zh) 教学关联信息的确定方法、装置、教学设备及存储介质
CN111179650A (zh) 一种纸写板书和讲解自动文档化的讲台系统
CN112542163B (zh) 智能语音交互方法、设备及存储介质
CN111417026A (zh) 一种基于书写内容的在线学习方法及装置
CN110309754B (zh) 一种习题采集的方法及系统
CN111506240A (zh) 一种基于家教机的作业在线批改方法及装置
CN110674825A (zh) 应用于智能语音鼠标的文字识别方法、装置、系统和存储介质
Koushik et al. Automated marks entry processing in Handwritten answer scripts using character recognition techniques
RU2571379C2 (ru) Интеллектуальная обработка электронного документа
KR20200058026A (ko) 증강 현실을 이용한 한자 공부를 위한 전자 장치의 동작 방법
CN114331932A (zh) 目标图像生成方法和装置、计算设备以及计算机存储介质

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: 17921790

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: 17921790

Country of ref document: EP

Kind code of ref document: A1

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 16/10/2020)

122 Ep: pct application non-entry in european phase

Ref document number: 17921790

Country of ref document: EP

Kind code of ref document: A1