WO2017215246A1 - 输入设备识别方法和系统、输入指令识别方法和系统 - Google Patents
输入设备识别方法和系统、输入指令识别方法和系统 Download PDFInfo
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- WO2017215246A1 WO2017215246A1 PCT/CN2016/113221 CN2016113221W WO2017215246A1 WO 2017215246 A1 WO2017215246 A1 WO 2017215246A1 CN 2016113221 W CN2016113221 W CN 2016113221W WO 2017215246 A1 WO2017215246 A1 WO 2017215246A1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
- G06F3/0425—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means using a single imaging device like a video camera for tracking the absolute position of a single or a plurality of objects with respect to an imaged reference surface, e.g. video camera imaging a display or a projection screen, a table or a wall surface, on which a computer generated image is displayed or projected
Definitions
- the present invention relates to the field of touch display technologies, and in particular, to an input device identification method and system, an input command recognition method and system.
- a touch screen device generally needs to recognize an input device such as a touch object through its touch frame, thereby recognizing a touch operation input by the input device to the touch screen device.
- the touch frame of the touch screen device can only recognize an input device that is in contact with or very close to the touch screen. The range of recognition is limited and it is easy to affect its recognition effect.
- An input device identification method includes the following steps:
- the feature information of the object is compared with the feature information of the pre-stored input device to identify the input device within the recognition range.
- the input device identification method may use an imaging device to capture an object within the recognition range of the touch screen device, and identify the captured photo to obtain corresponding feature information, according to the feature information and the pre-stored input device feature information.
- the comparison device recognizes the input device of the touch screen device, and has a larger recognition range.
- the above-mentioned camera device can capture and correspondingly recognize the input device in various directions of the touch screen device, and can also perform the recognized positioning and the input action reading. , has a higher recognition effect.
- the step of comparing the feature information of the object with the feature information of the pre-stored input device, the step of identifying the input device in the identification range may include:
- the object is an input device of a touch screen device.
- the size ratio difference between the two is obtained, and the corresponding determination is performed according to the size difference difference, thereby ensuring the accurate result. Sex.
- An input device identification system comprising:
- a shooting module configured to control the camera to take a photo within the recognition range of the touch screen device
- An acquiring module configured to identify an object image in the photo, and acquire feature information of an object in the recognition range
- the identification module is configured to compare the feature information of the object with the feature information of the pre-stored input device to identify the input device within the identification range.
- the input device identification system may use an imaging device to capture an object within the recognition range of the touch screen device, and identify the captured photo to obtain corresponding feature information, according to the feature information and the pre-stored input device feature information.
- the comparison device recognizes the input device of the touch screen device, and has a larger recognition range.
- the above-mentioned camera device can capture and correspondingly recognize the input device in various directions of the touch screen device, and can also perform the recognized positioning and the input action reading. , has a higher recognition effect.
- An input instruction identification method includes the following steps:
- the input action of the input device is read, and the input command is recognized according to the input action.
- the input command recognition method can use the photographing device to identify the input device of the touch screen device correspondingly, thereby identifying the input command of the input device, and can accurately read the input device in various directions of the touch screen device and the corresponding input command.
- the step of reading the input action of the input device and recognizing the input command according to the input action may include:
- An input instruction of the input action is acquired according to the first action information and the second action information.
- the input actions of the corresponding input devices are respectively read by the camera device and the touch frame, thereby determining the input command corresponding to the input action, and the accuracy of the determined input command can be ensured.
- the step of reading the input device, after the step of recognizing the input instruction according to the action further includes:
- the distance from the input device to the plane of the touch screen is obtained by the camera device, and when the distance is less than the preset distance, the recognition function of the touch frame is shielded.
- the identification of the input device is performed by using the image capturing device, and the distance from the input device to the plane of the touch screen is less than the preset distance.
- the identification function of the touch frame is shielded, which can effectively avoid The touch frame identifies the interference caused by the corresponding input device and the input command recognition.
- the process of acquiring the distance of the input device to the plane of the touch screen by the camera device may include:
- the distance from the input device to the plane of the touch screen is determined according to the original size, the object size, and the shooting angle.
- the step of reading the input device may further include: after the step of recognizing the input instruction according to the action:
- whether the first input position acquired by the camera device and the second position recognized by the touch frame determine whether the corresponding input action is valid, further ensuring the accuracy of the read input action.
- the input instruction identification method may further include:
- the gesture instruction in the recognition range of the touch screen device can be correspondingly identified, and the recognition function of the touch screen device is further improved.
- the step of determining whether the gesture instruction is a valid instruction includes:
- gesture instruction is a valid gesture instruction.
- An input command recognition system comprising:
- a shooting module configured to control the camera to take a photo within the recognition range of the touch screen device
- An acquiring module configured to identify an object image in the photo, and acquire feature information of an object in the recognition range
- An identification module configured to compare feature information of the object with feature information of a pre-stored input device to identify an input device within the identification range;
- a reading module configured to read an input action of the input device, and identify an input instruction according to the input action.
- the input command recognition system can perform corresponding recognition on the input device of the touch screen device by using the photographing device, thereby identifying the input command of the input device, and can accurately read the input device in various directions of the touch screen device and the corresponding input command.
- 1 is a flow chart of an input device identification method of an embodiment
- FIG. 2 is a schematic view showing the installation of an image pickup apparatus according to an embodiment
- FIG. 3 is a side view of a rectangular touch screen device of an embodiment
- FIG. 4 is a schematic structural diagram of an input device identification system of an embodiment
- FIG. 5 is a schematic diagram of an input device distance solution according to an embodiment
- FIG. 6 is a flow chart of an input command identification method according to an embodiment
- FIG. 7 is a schematic diagram of location identification of an input device of an embodiment
- FIG. 8 is a schematic diagram of a first position of an input device of an embodiment
- Figure 9 is a block diagram showing the structure of an input command recognition system of an embodiment.
- FIG. 1 is a flowchart of an input device identification method according to an embodiment, which includes the following steps:
- the camera device may be installed on the periphery of the corresponding touch screen device or on the touch frame thereof, so as to rotate the respective camera devices to shoot in various directions of the touch screen device.
- the recognition range of the touch screen device may be set according to the shooting accuracy and the shooting angle of the corresponding camera device. In general, it may be set as the front of the touch screen device, and the above-mentioned camera device can perform an area for taking pictures in high definition.
- the camera devices may be respectively mounted on four right angles of the touch screen device, such as positions 1, 2, 3, and 4 shown in FIG.
- the shooting angle of the imaging device By adjusting the shooting angle of the imaging device at the above four positions, it is possible to capture an object in each direction of the touch screen device, and obtain a photo within the recognition range of the touch screen device.
- 3 is a side view of the rectangular touch screen device.
- the recognition range of the touch screen device that is, the adjusted shooting range of the camera device, may be within the area shown in FIG.
- the photograph taken by the camera device is recognized, and feature information such as the shape, color or identifier of the object may be acquired to identify whether the corresponding object is an input device of the touch screen device according to the feature information.
- S30 Compare feature information of the object with feature information of a pre-stored input device, and identify an input device within the identification range.
- the touch screen device can pre-store relevant feature information (such as shape information, color information or identifier, etc.) of an input device such as a corresponding pen, and use the pre-stored input device after the camera captures the relevant photo within its recognition range.
- relevant feature information such as shape information, color information or identifier, etc.
- the information identifies the image of the object in the photo, and then confirms the corresponding input device, and refuses to read the information of the non-input device, thereby ensuring the validity of the input device identification.
- the input device identification method provided by the present invention can use an imaging device to capture an object within the recognition range of the touch screen device, and identify the captured photo to obtain corresponding feature information, according to the feature information and the pre-stored input device feature.
- the comparison between the information identifies the input device of the touch screen device, which has a large recognition range.
- the above-mentioned camera device can capture and correspondingly recognize the input device in various directions of the touch screen device, and can also perform positioning and input after recognition. The action is read and has a high recognition effect.
- the step of comparing the feature information of the object with the feature information of the pre-stored input device, the step of identifying the input device in the identification range may include:
- Reading shape information of the object from feature information of the object
- the object is an input device of a touch screen device.
- the preset range of the above-mentioned presets may be set according to the specific size ratio of the input device. In general, it may be set to an equivalent value of the input device parameter size ratio. According to the size ratio of the two, the identification of the input device can avoid the interference caused by the relevant system error during the shooting process, which is beneficial to improve the accuracy of the recognition result.
- the size ratio difference between the two is obtained, and the corresponding determination is performed according to the size difference difference, thereby ensuring the accurate result. Sex.
- the input device may also be identified by a correlation identifier read from a corresponding photo, for example, an identifier of the object may be obtained from the object photo; and determining whether the identifier is in the input device parameter The identifiers are consistent; if they are consistent, it can be determined that the object corresponding to the above photo is an input device of the touch screen device.
- the feature information such as the color of the object may be recognized from the image of the corresponding object, and the feature information of the touch screen device is used to identify the input device of the touch screen device. For example, if the feature information identified from the object image is color information, the above information may be obtained. The color feature information included in the color information, the color feature information such as the proportion of the surface area of the object occupied by the various colors, and the color feature information is compared with the color feature information of the input device pre-stored in the touch screen device, if the two are consistent, It can be determined that the corresponding object is an input device of the touch screen device.
- FIG. 4 is a schematic structural diagram of an input device identification system according to an embodiment, including:
- the photographing module 10 is configured to control the photographing device to take a photo in the recognition range of the touch screen device;
- the acquiring module 20 is configured to identify an object image in the photo, and acquire feature information of the object in the recognition range;
- the identification module 30 is configured to compare the feature information of the object with the feature information of the pre-stored input device to identify the input device within the identification range.
- the input device identification system provided by the present invention has a one-to-one correspondence with the input device identification method provided by the present invention.
- the technical features and the beneficial effects described in the embodiments of the input device identification method are all applicable to the embodiment of the input device identification system. , hereby declare.
- FIG. 6 is a flowchart of an input instruction identification method according to an embodiment, which includes the following steps:
- the above-mentioned camera device can be mounted on the periphery of the corresponding touch screen device or on its touch frame, so as to rotate the respective camera devices to shoot in various directions of the touch screen device.
- the recognition range of the above touch screen device can be set according to the shooting accuracy and shooting angle of the corresponding camera device. Usually, It can be set as the area in front of the touch screen device, and the above-mentioned camera device can take pictures in high definition.
- the photograph taken by the camera device is recognized, and the shape information such as the shape, the size parameter, and the related size ratio of the object can be acquired, and the identifier of the corresponding object can also be read from the photograph.
- the touch screen device can pre-store the related information of the input device such as the corresponding pen, and after the camera captures the relevant photo within the recognition range thereof, the image of the object in the photo is recognized by the pre-stored input device information, and then The corresponding input device confirms and refuses to read the information of the non-input device, which can ensure the validity of the input device identification.
- the input action of the input device is read, and then the corresponding input command is read, so that the validity of the identified input command can be ensured.
- the input action of the input device can be read by the photographing device, for example, continuous shooting of the input device, and the input action corresponding to the input device is obtained according to the continuously photographed photo, thereby identifying the corresponding input command; the input action of the input device It can also be identified by the touch frame of the touch screen device, and the touch frame can be used to read information such as the positioning of the input device and the input action.
- the input instruction identification method provided in this embodiment can perform corresponding recognition on the input device of the touch screen device by using the photographing device, thereby identifying the input instruction of the input device, and can accurately read the input device in various directions of the touch screen device and the corresponding input instruction.
- the step of reading the input action of the input device and recognizing the input command according to the input action may include:
- An input instruction of the input action is acquired according to the first action information and the second action information.
- the first motion information and the second motion information are consistent, because of the shooting angle of the imaging device, And the influence of the recognition distance of the touch frame, the continuity of the first action information or the second action information may be affected, and the input device action information with better time continuity may be selected for reading the corresponding input command,
- the first action information or the second action information may be combined to obtain a portion with high continuity, so as to obtain a corresponding input instruction.
- the input actions of the corresponding input devices are respectively read by the camera device and the touch frame, thereby determining the input command corresponding to the input action, and the accuracy of the determined input command can be ensured.
- the step of reading the input device may further include: after the step of recognizing the input instruction according to the action:
- the distance from the input device to the plane of the touch screen is obtained by the camera device, and when the distance is less than the preset distance, the recognition function of the touch frame is shielded.
- the preset distance may be set according to the shooting accuracy of the camera device and the recognition range of the touch frame.
- the camera device may input the input device and the corresponding input.
- the recognition capability of the instruction is higher than the recognition capability of the touch frame.
- the recognition function of the touch frame is shielded, which can avoid the interference caused by the touch frame recognition function on the input command recognition, so as to ensure the accuracy of the above input command recognition.
- the identification of the input device is performed by using the image capturing device, and the distance from the input device to the plane of the touch screen is less than the preset distance.
- the identification function of the touch frame is shielded, which can effectively avoid The touch frame identifies interference caused by the identification of the corresponding input device and its corresponding input command.
- the process of acquiring the distance of the input device to the plane of the touch screen by the camera device may include:
- the distance from the input device to the plane of the touch screen is determined according to the original size, the object size, and the shooting angle.
- the above original size can be obtained according to the locally stored input device information, and the object size of the object photo can be obtained by image recognition of the corresponding photo, and the original size, the object size and the shooting angle are obtained. Degree, substituting into the corresponding triangle, using the relevant principle of the triangle, can accurately calculate the distance of the corresponding input device to the plane of the touch screen.
- FIG. 5 is a schematic diagram of an input device distance solution according to an embodiment.
- the input device may be a writing pen corresponding to the touch screen, and the original size is as shown in FIG. 4, AB, A ⁇ B' is The size of the object in the photo of the object, OB ⁇ is the distance from the pen tip B' in the photo to the plane of the touch screen (the distance of the plane of the touch screen), the focal length of the camera lens and the corresponding shooting angle can be obtained according to the relevant settings of the camera, according to the triangle similarity
- the principle can calculate the distance from the input device to the distance OB of the plane of the touch screen. After obtaining the OB, the size and angular position of the object in the same frame can be further obtained by solving the triangle to realize the positioning of the captured object. .
- the step of reading the input device may further include: after the step of recognizing the input instruction according to the action:
- the preset coordinate difference value may be set according to the recognition precision of the touch screen device.
- the touch point position of the input device on the touch screen is obtained by using the camera device and the touch frame, respectively, to obtain the first position and the second position.
- the coordinate value of the first position may be coordinate 1 (x1, y1)
- the coordinate value of the second position may be coordinate 2 (x2, y2), using the above coordinates 1 (x1, y1) and coordinate 2 (x2, Y2) can calculate the coordinate difference between the first position and the second position.
- the touch screen device can further If the coordinate difference value is greater than the preset coordinate difference value, it indicates that there is an identification error or a large error in the input action information such as the position recognized by the camera device and the touch frame, and if the corresponding input command is further performed The reading may affect the accuracy of the identification.
- the coordinates (x1, y1) of the first position obtained by the camera device may be as shown in FIG. 7.
- EF represents the width of the rectangular touch screen display area
- FC represents a rectangular touch screen.
- OE is the touch point to the upper left corner of the display area
- OF is the distance from the touch point to the lower left corner of the display area.
- the dimensions of EF, OE, and OF are known.
- the distance x1, y1 is projected vertically; thereby determining the coordinates (x1, y1) of the above first position.
- whether the first input position acquired by the camera device and the second position recognized by the touch frame determine whether the corresponding input action is valid, further ensuring the accuracy of the read input action.
- the input instruction identification method may further include:
- the gesture instruction in the recognition range of the touch screen device can be correspondingly identified, and the recognition function of the touch screen device is further improved.
- the step of determining whether the gesture instruction is a valid instruction may include:
- gesture instruction is a valid gesture instruction.
- the setting gesture instruction may be pre-stored and related before the reading of the relevant gesture instruction, and after the camera device recognizes the corresponding gesture instruction, the detected gesture instruction is compared with the pre-stored gesture instruction to determine the recognized Whether the gesture instruction is an effective gesture instruction of the corresponding touch screen device; for example, the “ok” gesture can be pre-stored locally, and the gesture is defined as a shutdown instruction, and the camera device reads “ok” input by the user in the corresponding recognition range. After the gesture, and by confirming that it is a valid gesture command, the touch screen device can be controlled to perform a shutdown operation.
- FIG. 9 is a schematic structural diagram of an input command recognition system according to an embodiment, including:
- the photographing module 10 is configured to control the photographing device to take a photo in the recognition range of the touch screen device;
- the acquiring module 20 is configured to identify an object image in the photo, and acquire feature information of the object in the recognition range;
- the identification module 30 is configured to compare feature information of the object with feature information of a pre-stored input device to identify an input device within the identification range;
- the reading module 40 is configured to read an input action of the input device, and recognize an input command according to the input action.
- the input instruction recognition system provided by the present invention has a one-to-one correspondence with the input instruction identification method provided by the present invention, and the technical features and advantages thereof in the embodiment of the input instruction identification method are applicable to the embodiment of the input instruction recognition system. , hereby declare.
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Abstract
一种输入设备识别方法和系统、输入指令识别方法和系统，上述输入设备识别方法，包括如下步骤：控制摄像装置拍摄触摸屏设备的识别范围内的照片（S10）；对所述照片中的物体图像进行识别，获取所述识别范围内的物体的特征信息（S20）；将所述物体的特征信息与预存的输入设备的特征信息进行比对，识别所述识别范围内的输入设备（S30）。该输入设备识别方法和系统、输入指令识别方法和系统可以触摸屏设备各个方向的输入设备拍摄和相应的识别，还可以进行识别后的定位以及输入动作读取，具有较高的识别效果。
Description
本发明涉及触摸显示技术领域，特别是涉及一种输入设备识别方法和系统、输入指令识别方法和系统。
随着触摸技术的快速发展，触摸屏设备被广泛应用在各种电子设备中，人们对上述触摸屏设备各个功能的要求也越来越高。触摸屏设备通常需要通过其触摸框对触摸物等输入设备进行识别，进而识别上述输入设备向触摸屏设备输入的触摸操作，然而，触摸屏设备的触摸框通常仅能识别接触或者非常靠近触摸屏的输入设备，其识别的范围有限，容易影响其识别效果。
发明内容
基于此，有必要针对传统方案容易影响触摸屏设备识别效果的技术问题，提供一种输入设备识别方法和系统、输入指令识别方法和系统。
一种输入设备识别方法，包括如下步骤：
控制摄像装置拍摄触摸屏设备的识别范围内的照片；
对所述照片中的物体图像进行识别，获取所述识别范围内的物体的特征信息；
将所述物体的特征信息与预存的输入设备的特征信息进行比对，识别所述识别范围内的输入设备。
上述输入设备识别方法，可以利用摄像装置对触摸屏设备识别范围内的物体进行拍摄，并对拍摄的照片进行识别，以获取相应的特征信息，根据上述的特征信息与预存的输入设备特征信息之间的比对对触摸屏设备的输入设备进行识别，其具有较大的识别范围，上述摄像装置可以对触摸屏设备各个方向的输入设备拍摄和相应的识别，还可以进行识别后的定位以及输入动作读取，具有较高的识别效果。
在一个实施例中，上述将所述物体的特征信息与预存的输入设备的特征信息进行比对，识别所述识别范围内的输入设备的步骤可以包括：
根据所述物体的形状信息获取物体的尺寸比例；
检测所述物体尺寸比例与预存输入设备参数中尺寸比例的尺寸比例差，并判断所述尺寸比例差是否在预设比例范围内；
若是，则判定所述物体为触摸屏设备的输入设备。
本实施例根据物体尺寸比例与本地预存的输入设备参数对应的尺寸比例进行检测，获取两者之间的尺寸比例差，进而依据上述尺寸比例差进行相应的判定，可以保证所判定的结果的准确性。
一种输入设备识别系统，包括：
拍摄模块，用于控制摄像装置拍摄触摸屏设备的识别范围内的照片；
获取模块，用于对所述照片中的物体图像进行识别，获取所述识别范围内的物体的特征信息；
识别模块，用于将所述物体的特征信息与预存的输入设备的特征信息进行比对，识别所述识别范围内的输入设备。
上述输入设备识别系统，可以利用摄像装置对触摸屏设备识别范围内的物体进行拍摄，并对拍摄的照片进行识别，以获取相应的特征信息，根据上述的特征信息与预存的输入设备特征信息之间的比对对触摸屏设备的输入设备进行识别，其具有较大的识别范围，上述摄像装置可以对触摸屏设备各个方向的输入设备拍摄和相应的识别，还可以进行识别后的定位以及输入动作读取，具有较高的识别效果。
一种输入指令识别方法，包括如下步骤：
控制摄像装置拍摄触摸屏设备的识别范围内的照片；
对所述照片中的物体图像进行识别，获取所述识别范围内的物体的特征信息；
将所述物体的特征信息与预存的输入设备的特征信息进行比对，识别所述识别范围内的输入设备；
读取所述输入设备的输入动作，根据所述输入动作识别输入指令。
上述输入指令识别方法可以利用拍摄装置对触摸屏设备的输入设备进行相应的识别，进而识别上述输入设备的输入指令，可以准确读取触摸屏设备各个方向的输入设备及相应的输入指令。
在一个实施例中，上述读取所述输入设备的输入动作，根据所述输入动作识别输入指令的步骤可以包括：
利用摄像装置拍摄输入设备的输入动作，得到输入设备的第一动作信息；
利用触摸框的识别功能获取所述输入设备的输入动作，得到输入设备的第二动作信息；
根据所述第一动作信息和第二动作信息获取输入动作的输入指令。
本实施例分别通过摄像装置和触摸框对相应输入设备的输入动作进行读取，从而确定上述输入动作对应的输入指令，可以保证所确定的输入指令的准确性。
作为一个实施例，所述读取所述输入设备的动作，根据所述动作识别输入指令的步骤后还包括：
通过摄像装置获取所述输入设备至触摸屏所在平面的距离，当所述距离小于预设距离时，屏蔽触摸框的识别功能。
本实施例在利用摄像装置进行输入设备的识别，且输入设备至触摸屏所在平面的距离小于预设距离，触摸框开始识别到相应的触摸物时，将触摸框的识别功能进行屏蔽，可以有效避免触摸框识别为相应输入设备以及输入指令识别带来的干扰。
作为一个实施例，上述通过摄像装置获取所述输入设备至触摸屏所在平面的距离的过程可以包括：
获取输入设备的原始尺寸以及物体照片的物体尺寸；
获取摄像装置相对于物体的拍摄角度；
根据所述原始尺寸、物体尺寸和拍摄角度确定所述输入设备至触摸屏所在平面的距离。
在一个实施例中，上述读取所述输入设备的动作，根据所述动作识别输入指令的步骤后还可以包括：
分别利用摄像装置和触摸框获取所述输入设备在触摸屏上的触摸点位置，得到第一位置和第二位置；
计算所述第一位置和第二位置的坐标差值；
若所述坐标差值大于预设的坐标差值，则判定所述输入设备的输入动作无效。
本实施例利用摄像装置获取的第一位置与触摸框识别的第二位置判断相应的输入动作是否有效，进一步保证所读取的输入动作的准确性。
在一个实施例中，上述输入指令识别方法，还可以包括：
利用摄像装置识别触摸屏设备识别范围内的手势指令；
判断所述手势指令是否为有效指令；
若是，则执行所述手势指令。
本实施例可以对触摸屏设备识别范围内的手势指令进行相应的识别，进一步完善了上述触摸屏设备的识别功能。
作为一个实施例，上述判断所述手势指令是否为有效指令的步骤包括：
检测所述手势指令与预存的设定手势指令是否一致；
若是，则判断所述手势指令为有效手势指令。
一种输入指令识别系统，包括：
拍摄模块，用于控制摄像装置拍摄触摸屏设备的识别范围内的照片；
获取模块，用于对所述照片中的物体图像进行识别，获取所述识别范围内的物体的特征信息；
识别模块，用于将所述物体的特征信息与预存的输入设备的特征信息进行比对，识别所述识别范围内的输入设备；
读取模块，用于读取所述输入设备的输入动作，根据所述输入动作识别输入指令。
上述输入指令识别系统，可以利用拍摄装置对触摸屏设备的输入设备进行相应的识别，进而识别上述输入设备的输入指令，可以准确读取触摸屏设备各个方向的输入设备及相应的输入指令。
图1为一个实施例的输入设备识别方法流程图；
图2为一个实施例的摄像装置安装示意图；
图3为一个实施例的矩形触摸屏设备侧面示意图；
图4为一个实施例的输入设备识别系统结构示意图；
图5为一个实施例的输入设备距离求解示意图；
图6为一个实施例的输入指令识别方法流程图；
图7为一个实施例的输入设备的位置识别示意图；
图8为一个实施例的输入设备第一位置示意图；
图9为一个实施例的输入指令识别系统结构示意图。
下面结合附图对本发明的输入设备识别方法和系统、输入指令识别方法和系统的具体实施方式作详细描述。
参考图1，图1所示为一个实施例的输入设备识别方法流程图，包括如下步骤：
S10，控制摄像装置拍摄触摸屏设备的识别范围内的照片；
上述步骤中，摄像装置可以安装在相应触摸屏设备的四周或者其触摸框上，以便旋转各个摄像装置，对上述触摸屏设备各个方向进行拍摄。上述触摸屏设备的识别范围可以根据相应摄像装置的拍摄精度和拍摄角度进行设置，通常情况下，可以设置为触摸屏设备前方，上述摄像装置可以进行高清拍照的区域。
在一个实施例中，若上述触摸屏设备为矩形，如图2所示，则上述摄像装置可以分别安装在触摸屏设备的四个直角上，如图2所示的位置1、2、3和4。通过调整上述4个位置上摄像装置的拍摄角度，可以对触摸屏设备各个方向的物体进行拍摄，得到触摸屏设备识别范围内的照片。图3所示为上述矩形触摸屏设备的侧面示意图，如图3所示，上述触摸屏设备的识别范围，即摄像装置调整后的拍摄范围可以为图3所示区域内。
S20，对所述照片中的物体图像进行识别，获取所述识别范围内的物体的特
征信息；
上述步骤中，对摄像装置拍摄的照片进行识别，可以获取物体的形状、颜色或者标识符等特征信息，以便根据上述特征信息识别相应的物体是否为触摸屏设备的输入设备。
S30，将所述物体的特征信息与预存的输入设备的特征信息进行比对，识别所述识别范围内的输入设备。
触摸屏设备可以对其对应的书写笔等输入设备的相关特征信息(比如形状信息、颜色信息或者标识符等)进行预存，在摄像装置在其识别范围内拍摄到相关照片后，利用预存的输入设备信息对照片中的物体图像进行识别，进而对其对应的输入设备进行确认，拒绝读取非输入设备的信息，可以保证输入设备识别的有效性。
本发明提供的输入设备识别方法，可以利用摄像装置对触摸屏设备识别范围内的物体进行拍摄，并对拍摄的照片进行识别，以获取相应的特征信息，根据上述的特征信息与预存的输入设备特征信息之间的比对对触摸屏设备的输入设备进行识别，其具有较大的识别范围，上述摄像装置可以对触摸屏设备各个方向的输入设备拍摄和相应的识别，还可以进行识别后的定位以及输入动作读取，具有较高的识别效果。
在一个实施例中，上述将所述物体的特征信息与预存的输入设备的特征信息进行比对，识别所述识别范围内的输入设备的步骤可以包括：
从所述物体的特征信息中读取物体的形状信息；
根据所述物体的形状信息获取物体的尺寸比例；
检测所述物体尺寸比例与预存输入设备参数中尺寸比例的尺寸比例差，并判断所述尺寸比例差是否在预设比例范围内；
若是，则判定所述物体为触摸屏设备的输入设备。
上述预设比例范围可以根据输入设备的具体尺寸比例进行设置，通常情况下，可以设置为输入设备参数尺寸比例的百分之一等值。根据两者的尺寸比进行输入设备的识别，可以避免拍摄过程中相关系统误差带来的干扰，有利于提高识别结果的准确性。
本实施例根据物体尺寸比例与本地预存的输入设备参数对应的尺寸比例进行检测，获取两者之间的尺寸比例差，进而依据上述尺寸比例差进行相应的判定，可以保证所判定的结果的准确性。
作为一个实施例，上述输入设备还可以通过从相应照片读取的相关标识符进行识别，例如，可以从所述物体照片中获取物体的标识符；判断所述标识符是否与输入设备参数中的标识符一致；若一致，便可以判定上述照片对应的物体为触摸屏设备的输入设备。
本实施例还可以从相应物体图像中识别物体的颜色等特征信息，利用上述颜色等特征信息进行触摸屏设备输入设备的识别，例如，若从物体图像中识别的特征信息为颜色信息，可以获取上述颜色信息中所包括的颜色种类，各种颜色所占的物体表面面积比例等颜色特征信息，再将上述颜色特征信息与触摸屏设备中预存的输入设备颜色特征信息进行比对，若两者一致，便可以判定相应的物体为触摸屏设备的输入设备。
参考图4所示，图4为一个实施例的输入设备识别系统结构示意图，包括：
拍摄模块10，用于控制摄像装置拍摄触摸屏设备的识别范围内的照片；
获取模块20，用于对所述照片中的物体图像进行识别，获取所述识别范围内的物体的特征信息；
识别模块30，用于将所述物体的特征信息与预存的输入设备的特征信息进行比对，识别所述识别范围内的输入设备。
本发明提供的输入设备识别系统与本发明提供的输入设备识别方法一一对应，在所述输入设备识别方法的实施例阐述的技术特征及其有益效果均适用于输入设备识别系统的实施例中，特此声明。
参考图6所示，图6为一个实施例的输入指令识别方法流程图，包括如下步骤：
S10，控制摄像装置拍摄触摸屏设备的识别范围内的照片；
上述摄像装置可以安装在相应触摸屏设备的四周或者其触摸框上，以便旋转各个摄像装置，对上述触摸屏设备各个方向进行拍摄。上述触摸屏设备的识别范围可以根据相应摄像装置的拍摄精度和拍摄角度进行设置，通常情况下，
可以设置为触摸屏设备前方，上述摄像装置可以进行高清拍照的区域。
S20，对所述照片中的物体图像进行识别，获取所述识别范围内的物体的特征信息；
上述步骤中，对摄像装置拍摄的照片进行识别，可以获取物体的形状、尺寸参数，相关尺寸比例等形状信息，还可以从照片中读取相应物体的标识符。
S30，将所述物体的特征信息与预存的输入设备的特征信息进行比对，识别所述识别范围内的输入设备；
触摸屏设备可以对其对应的书写笔等输入设备的相关信息进行预存，在摄像装置在其识别范围内拍摄到相关照片后，利用预存的输入设备信息对照片中的物体图像进行识别，进而对其对应的输入设备进行确认，拒绝读取非输入设备的信息，可以保证输入设备识别的有效性。
S40，读取所述输入设备的输入动作，根据所述输入动作识别输入指令。
对输入设备进行识别后，读取上述输入设备的输入动作，进而进行相应输入指令的读取，可以保证所识别的输入指令的有效性。
输入设备的输入动作可以通过拍摄装置进行读取，比如对上述输入设备进行连续拍摄，根据上述连续拍摄的照片获取输入设备对应的输入动作，以此识别相应的输入指令；上述输入设备的输入动作也可以通过触摸屏设备的触摸框进行识别，利用触摸框可以实现对输入设备的定位以及输入动作等信息的读取。
本实施例提供的输入指令识别方法可以利用拍摄装置对触摸屏设备的输入设备进行相应的识别，进而识别上述输入设备的输入指令，可以准确读取触摸屏设备各个方向的输入设备及相应的输入指令。
在一个实施例中，上述读取所述输入设备的输入动作，根据所述输入动作识别输入指令的步骤可以包括：
利用摄像装置拍摄输入设备的输入动作，得到输入设备的第一动作信息；
利用触摸框的识别功能获取所述输入设备的输入动作，得到输入设备的第二动作信息；
根据所述第一动作信息和第二动作信息获取输入动作的输入指令。
上述第一动作信息与第二动作信息是一致的，由于摄像装置的拍摄角度、
以及触摸框的识别距离的影响，第一动作信息或者第二动作信息在时间上的连续性可能受到影响，可以选择其中时间连续性更好的输入设备动作信息进行相应输入指令的读取，也可以将上述第一动作信息或者第二动作信息进行结合，取两者连续性高的部分，以此获取相应的输入指令。
本实施例分别通过摄像装置和触摸框对相应输入设备的输入动作进行读取，从而确定上述输入动作对应的输入指令，可以保证所确定的输入指令的准确性。
作为一个实施例，所述读取所述输入设备的动作，根据所述动作识别输入指令的步骤后还可以包括：
通过摄像装置获取所述输入设备至触摸屏所在平面的距离，当所述距离小于预设距离时，屏蔽触摸框的识别功能。
上述预设距离可以根据摄像装置的拍摄精度以及触摸框的识别范围进行设置，通常情况下，输入设备至触摸屏所在平面的距离在上述预设距离附近时，摄像装置可以对上述输入设备及相应输入指令的识别能力高于触摸框对应的识别能力，此时将触摸框的识别功能进行屏蔽，可以避免触摸框识别功能对输入指令识别造成的干扰，以保证上述输入指令识别的准确性。
本实施例在利用摄像装置进行输入设备的识别，且输入设备至触摸屏所在平面的距离小于预设距离，触摸框开始识别到相应的触摸物时，将触摸框的识别功能进行屏蔽，可以有效避免触摸框识别为相应输入设备及其相应输入指令识别带来的干扰。
作为一个实施例，上述通过摄像装置获取所述输入设备至触摸屏所在平面的距离的过程可以包括：
获取输入设备的原始尺寸以及物体照片的物体尺寸；
获取摄像装置相对于物体的拍摄角度；
根据所述原始尺寸、物体尺寸和拍摄角度确定所述输入设备至触摸屏所在平面的距离。
上述原始尺寸可以根据本地预存的输入设备信息获取，物体照片的物体尺寸可以对相应的照片进行图像识别获取，将上述原始尺寸、物体尺寸和拍摄角
度，代入相应的三角形，利用三角形的相关原理，可以准确计算相应输入设备至触摸屏所在平面的距离。
参考图5所示，图5为一个实施例的输入设备距离求解示意图，作为一个实施例，上述输入设备可以为触摸屏对应的书写笔，原始尺寸如图4所示的AB，A`B`为物体照片中的物体尺寸，OB`为照片中笔尖B`距触摸屏平面的距离(触摸屏所在平面的距离)，摄像装置镜头焦距以及相应的拍摄角度可以根据摄像装置的相关设置中获取，根据三角形相似原理，可以计算出输入设备至触摸屏所在平面的距离OB的距离，在得到上述OB后，还可以进一步通过求解三角形获取同一帧图片中的物体大小及角度位置，以实现对所拍摄的物体的定位。
在一个实施例中，上述读取所述输入设备的动作，根据所述动作识别输入指令的步骤后还可以包括：
分别利用摄像装置和触摸框获取所述输入设备在触摸屏上的触摸点位置，得到第一位置和第二位置；
计算所述第一位置和第二位置的坐标差值；
若所述坐标差值大于预设的坐标差值，则判定所述输入设备的输入动作无效。
上述预设的坐标差值可以根据触摸屏设备的识别精度所设置，如图7所示，分别利用摄像装置和触摸框获取所述输入设备在触摸屏上的触摸点位置，得到第一位置和第二位置，上述第一位置的坐标值可以为坐标1(x1,y1)，第二位置的坐标值可以为坐标2(x2,y2)，利用上述坐标1(x1,y1)和坐标2(x2,y2)可以计算第一位置和第二位置的坐标差值，若上述坐标差值小于或者等于预设的坐标差值，表明相应的单击等输入指令为有效的输入指令，触摸屏设备可以进行进一步的读取；若上述坐标差值大于预设的坐标差值，表明摄像装置和触摸框两者所识别的位置等输入动作信息中存在识别出错或者误差较大的信息，若进一步进行相应输入指令的读取，可能影响识别的准确性。
作为一个实施例，利用输入设备点击触摸屏，利用摄像装置获取上述第一位置的坐标(x1,y1)可以如图7所示，图7中，EF表示矩形触摸屏显示区域的宽度，FC表示矩形触摸屏显示区域的长度，OE为触摸点到显示区域左上角的
距离，OF为触摸点到显示区域左下角的距离，已知EF、OE、OF的尺寸，通过余弦定理，可计算三角形EFO的三个内角角度，进而可以确定O点分别到EF、ED边的垂直投射距离x1，y1；从而确定上述第一位置的坐标(x1,y1)。
本实施例利用摄像装置获取的第一位置与触摸框识别的第二位置判断相应的输入动作是否有效，进一步保证所读取的输入动作的准确性。
在一个实施例中，上述输入指令识别方法，还可以包括：
利用摄像装置识别触摸屏设备识别范围内的手势指令；
判断所述手势指令是否为有效指令；
若是，则执行所述手势指令。
本实施例可以对触摸屏设备识别范围内的手势指令进行相应的识别，进一步完善了上述触摸屏设备的识别功能。
作为一个实施例，上述判断所述手势指令是否为有效指令的步骤可以包括：
检测所述手势指令与预存的设定手势指令是否一致；
若是，则判断所述手势指令为有效手势指令。
上述设定手势指令可以在对相关手势指令读取之前进行预存和相关定义，待摄像装置识别到相应的手势指令后，利用所识别的手势指令与预存的手势指令进行比对，以判断识别的手势指令是否为相应触摸屏设备的有效手势指令；例如，可以在本地将“ok”手势进步预存，并将上述手势定义为关机指令，摄像装置在读取到用户在相应识别范围内输入的“ok”手势后，并通过比对确认其为有效的手势指令后，便可以控制上述触摸屏设备执行关机操作。
参考图9所示，图9为一个实施例的输入指令识别系统结构示意图，包括：
拍摄模块10，用于控制摄像装置拍摄触摸屏设备的识别范围内的照片；
获取模块20，用于对所述照片中的物体图像进行识别，获取所述识别范围内的物体的特征信息；
识别模块30，用于将所述物体的特征信息与预存的输入设备的特征信息进行比对，识别所述识别范围内的输入设备；
读取模块40，用于读取所述输入设备的输入动作，根据所述输入动作识别输入指令。
本发明提供的输入指令识别系统与本发明提供的输入指令识别方法一一对应，在所述输入指令识别方法的实施例阐述的技术特征及其有益效果均适用于输入指令识别系统的实施例中，特此声明。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。
Claims (11)
- 一种输入设备识别方法，其特征在于，包括如下步骤：控制摄像装置拍摄触摸屏设备的识别范围内的照片；对所述照片中的物体图像进行识别，获取所述识别范围内的物体的特征信息；将所述物体的特征信息与预存的输入设备的特征信息进行比对，识别所述识别范围内的输入设备。
- 根据权利要求1所述的输入设备识别方法，其特征在于，所述将所述物体的特征信息与预存的输入设备的特征信息进行比对，识别所述识别范围内的输入设备的步骤包括：从所述物体的特征信息中读取物体的形状信息；根据所述物体的形状信息获取物体的尺寸比例；检测所述物体尺寸比例与预存输入设备参数中尺寸比例的尺寸比例差，并判断所述尺寸比例差是否在预设比例范围内；若是，则判定所述物体为触摸屏设备的输入设备。
- 一种输入设备识别系统，其特征在于，包括：拍摄模块，用于控制摄像装置拍摄触摸屏设备的识别范围内的照片；获取模块，用于对所述照片中的物体图像进行识别，获取所述识别范围内的物体的特征信息；识别模块，用于将所述物体的特征信息与预存的输入设备的特征信息进行比对，识别所述识别范围内的输入设备。
- 一种输入指令识别方法，其特征在于，包括如下步骤：控制摄像装置拍摄触摸屏设备的识别范围内的照片；对所述照片中的物体图像进行识别，获取所述识别范围内的物体的特征信息；将所述物体的特征信息与预存的输入设备的特征信息进行比对，识别所述识别范围内的输入设备；读取所述输入设备的输入动作，根据所述输入动作识别输入指令。
- 根据权利要求4所述的输入指令识别方法，其特征在于，所述读取所述输入设备的输入动作，根据所述输入动作识别输入指令的步骤包括：利用摄像装置拍摄输入设备的输入动作，得到输入设备的第一动作信息；利用触摸框的识别功能获取所述输入设备的输入动作，得到输入设备的第二动作信息；根据所述第一动作信息和第二动作信息获取输入动作的输入指令。
- 根据权利要求5所述的输入指令识别方法，其特征在于，所述读取所述输入设备的动作，根据所述动作识别输入指令的步骤后还包括：获取所述输入设备至触摸屏所在平面的距离，当所述距离小于预设距离时，屏蔽触摸框的识别功能。
- 根据权利要求6所述的输入指令识别方法，其特征在于，所述通过摄像装置获取所述输入设备至触摸屏所在平面的距离的过程包括：获取输入设备的原始尺寸以及物体照片的物体尺寸；获取摄像装置相对于物体的拍摄角度；根据所述原始尺寸、物体尺寸和拍摄角度确定所述输入设备至触摸屏所在平面的距离。
- 根据权利要求4所述的输入指令识别方法，其特征在于，所述读取所述输入设备的动作，根据所述动作识别输入指令的步骤后还包括：分别利用摄像装置和触摸框获取所述输入设备在触摸屏上的触摸点位置，得到第一位置和第二位置；计算所述第一位置和第二位置的坐标差值；若所述坐标差值大于预设的坐标差值，则判定所述输入设备的输入动作无效。
- 根据权利要求4所述的输入指令识别方法，其特征在于，还包括：利用摄像装置识别触摸屏设备识别范围内的手势指令；判断所述手势指令是否为有效指令；若是，则执行所述手势指令。
- 根据权利要求9所述的输入指令识别方法，其特征在于，所述判断所 述手势指令是否为有效指令的步骤包括：检测所述手势指令与预存的设定手势指令是否一致；若是，则判断所述手势指令为有效手势指令。
- 一种输入指令识别系统，其特征在于，包括：拍摄模块，用于控制摄像装置拍摄触摸屏设备的识别范围内的照片；获取模块，用于对所述照片中的物体图像进行识别，获取所述识别范围内的物体的特征信息；识别模块，用于将所述物体的特征信息与预存的输入设备的特征信息进行比对，识别所述识别范围内的输入设备；读取模块，用于读取所述输入设备的输入动作，根据所述输入动作识别输入指令。
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