WO2017088378A1 - 摄像头拍摄角度调整方法及装置 - Google Patents
摄像头拍摄角度调整方法及装置 Download PDFInfo
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- WO2017088378A1 WO2017088378A1 PCT/CN2016/082692 CN2016082692W WO2017088378A1 WO 2017088378 A1 WO2017088378 A1 WO 2017088378A1 CN 2016082692 W CN2016082692 W CN 2016082692W WO 2017088378 A1 WO2017088378 A1 WO 2017088378A1
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- 230000005236 sound signal Effects 0.000 claims description 34
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/62—Control of parameters via user interfaces
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/16—Human faces, e.g. facial parts, sketches or expressions
- G06V40/161—Detection; Localisation; Normalisation
- G06V40/166—Detection; Localisation; Normalisation using acquisition arrangements
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- G—PHYSICS
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- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/16—Human faces, e.g. facial parts, sketches or expressions
- G06V40/174—Facial expression recognition
- G06V40/176—Dynamic expression
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/48—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use
- G10L25/51—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use for comparison or discrimination
- G10L25/57—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use for comparison or discrimination for processing of video signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/10—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths
- H04N23/11—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths for generating image signals from visible and infrared light wavelengths
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/61—Control of cameras or camera modules based on recognised objects
- H04N23/611—Control of cameras or camera modules based on recognised objects where the recognised objects include parts of the human body
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- H—ELECTRICITY
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- H04N23/60—Control of cameras or camera modules
- H04N23/69—Control of means for changing angle of the field of view, e.g. optical zoom objectives or electronic zooming
Definitions
- the invention relates to the field of smart homes, in particular to a method and a device for adjusting a shooting angle of a camera.
- the shooting angle of the smart camera is fixed during use, and when the user wants to adjust the shooting angle of the smart camera, the shooting angle of the smart camera can be manually adjusted by the control device of the smart camera.
- the invention provides a camera shooting angle adjustment method and device.
- the technical solution is as follows:
- a camera shooting angle adjustment method comprising:
- Fine-adjusting the shooting angle of the camera according to the face position so that the image of the face position is at the center of the video image captured by the camera.
- the determining the position of the human body within the cameraable range of the camera includes:
- the location where the sound source is located is the human body position.
- the determining the position of the human body within the cameraable range of the camera includes:
- the detection result is that the spectral characteristic of the infrared signal matches the preset spectrum, determining that the location of the infrared signal source is the human body position.
- the determining a face position in the video image captured by the camera includes:
- the position of the recognized face as the face of the specified expression in the video picture is determined as the face position.
- the determining a face position in the video image captured by the camera includes:
- the position of the face indicated by the selection indication information in the video screen is determined as the face position.
- the method further includes:
- the camera When it is detected that the distance of the face image from the center of the video image is greater than a preset distance, the camera is further fine-tuned according to the position of the face image, so that the face image is in the The center of the video picture captured by the camera.
- a camera shooting angle adjusting device comprising:
- a first positioning module configured to determine a human body position within a camera detectable range
- the first adjustment module is configured to adjust a shooting angle of the camera, so that an image at the human body position determined by the first positioning module is at a center of a video image captured by the camera;
- a second positioning module configured to determine a face position in a video frame captured by the camera
- the second adjustment module is configured to finely adjust the shooting angle of the camera according to the face position determined by the second positioning module, so that the image of the face position is in a video frame captured by the camera center.
- the first positioning module includes:
- a sound collection sub-module configured to acquire a sound signal emitted by a sound source within a camera-capable range
- the frequency band detection sub-module is configured to detect whether a frequency band of the sound signal collected by the sound collection sub-module is within a preset frequency range
- the location where the sound source is located is the human body position.
- the first positioning module further includes:
- An infrared collection sub-module configured to acquire an infrared signal emitted by an infrared signal source within a camera range of the camera;
- a spectrum monitoring sub-module configured to detect whether a spectral feature of the infrared signal collected by the infrared collection sub-module matches a preset spectrum
- the detection result is that the spectral feature of the infrared signal collected by the infrared collection sub-module matches the preset spectrum, determining that the location of the infrared signal source is the human body position.
- the second positioning module includes:
- An expression recognition sub-module configured to perform expression recognition on at least one of the faces of the video captured by the camera
- the first positioning sub-module is configured to determine, as the face position, a position of the face recognized by the expression recognition sub-module as a face of the specified expression in the video picture.
- the second positioning module further includes:
- a screen pushing submodule configured to push the video screen to a user terminal connected to the camera
- the information receiving sub-module is configured to receive the selection indication information returned by the user terminal, where the selection indication information is used to indicate a human face included in the video screen;
- a second positioning submodule configured to determine, by the information receiving submodule, a location of the face indicated by the selection indication information in the video screen as the face position.
- the device further includes:
- the distance monitoring module is configured to monitor, after fine adjustment of the shooting angle of the camera according to the face position, a distance of a face image corresponding to the face position from a center of the video image captured by the camera;
- the second adjustment module is further configured to, when the distance monitoring module detects that the distance of the face image from the center of the video image is greater than a preset distance, re-according to the location of the face image The shooting angle of the camera is fine-tuned so that the face image is at the center of the video frame captured by the camera.
- a camera shooting angle adjusting device comprising:
- a memory for storing executable instructions of the processor
- processor is configured to:
- Fine-adjusting the shooting angle of the camera according to the face position so that the image of the face position is at the center of the video image captured by the camera.
- the camera After determining the position of the human body in the photographable range and adjusting the camera shooting angle to the human body position, the camera is finely adjusted according to the position of the face, and the camera angle is automatically adjusted according to the face position, and the user does not need to manually adjust. It achieves the difficulty of reducing user operation and improves the accuracy of shooting angle adjustment.
- FIG. 1 is a flowchart of a camera shooting angle adjustment method according to an exemplary embodiment
- FIG. 2A is a flowchart of a camera shooting angle adjustment method according to another exemplary embodiment
- FIG. 2B is a flowchart illustrating determining a position of a human body within a camera-capable range according to another exemplary embodiment
- 2C is a flow chart showing another determination of a human body position within a camera-capable range, according to another exemplary embodiment
- FIG. 2D is a flowchart illustrating determining a face position according to an exemplary embodiment
- FIG. 2E is a schematic diagram of a camera shooting angle adjustment according to another exemplary embodiment
- 2F is another flow chart showing determining a face position according to another exemplary embodiment
- FIG. 2G is a schematic diagram of another camera shooting angle adjustment according to another exemplary embodiment
- FIG. 3A is a flowchart of a camera shooting angle adjustment method according to another exemplary embodiment
- FIG. 3B is a schematic diagram of detecting a face offset distance according to another exemplary embodiment
- FIG. 3C is a schematic diagram of a face position adjustment according to another exemplary embodiment
- FIG. 4 is a block diagram of a camera shooting angle adjusting apparatus according to an exemplary embodiment
- FIG. 5 is a block diagram of a camera shooting angle adjusting device according to another exemplary embodiment
- FIG. 6 is a block diagram of an apparatus, according to an exemplary embodiment.
- FIG. 1 is a flowchart of a camera shooting angle adjustment method according to an exemplary embodiment.
- the camera shooting angle adjustment method is used in a smart camera. As shown in FIG. 1, the camera shooting angle adjustment method may include the following steps.
- step 101 the position of the human body within the camera's viewable range is determined.
- step 102 the shooting angle of the camera is adjusted such that the image at the human body position is at the center of the video image captured by the camera.
- step 103 the face position in the video picture captured by the camera is determined.
- step 104 the camera's shooting angle is fine-tuned according to the face position, so that the image of the face position is at the center of the video image captured by the camera.
- the determining the position of the human body within the camera range of the camera includes:
- the position of the sound source is the human body position.
- the determining the position of the human body within the camera range of the camera includes:
- the detection result is that the spectral characteristic of the infrared signal matches the preset spectrum, it is determined that the location of the infrared signal source is the human body position.
- determining the location of the face in the video frame captured by the camera includes:
- the position where the recognized face is the face of the specified expression in the video picture is determined as the face position.
- determining the location of the face in the video frame captured by the camera includes:
- selection indication information where the selection indication information is used to indicate a face included in the video screen
- the position of the face indicated by the selection indication information in the video screen is determined as the face position.
- the method further includes:
- the camera When it is detected that the distance of the face image from the center of the video image is greater than the preset distance, the camera is further fine-tuned according to the position of the face image, so that the face image is in the video captured by the camera. The center of the picture.
- the camera shooting angle adjustment method shown in the embodiment of the present invention after determining the position of the human body in the photographable range, and adjusting the camera shooting angle to the human body position, fine-tuning the camera according to the position of the face, automatically according to The face position is finely adjusted by the camera shooting angle, and does not require manual adjustment by the user, thereby reducing the difficulty of the user operation and improving the accuracy of the shooting angle adjustment.
- FIG. 2A is a flowchart of a camera shooting angle adjustment method according to another exemplary embodiment.
- the camera shooting angle adjustment method is used in a smart camera. As shown in FIG. 2A, the camera shooting angle adjustment method may include the following steps.
- step 201 the position of the human body within the photographable range of the camera is determined.
- FIG. 2B is a flowchart of determining a human body position within a camera-capable range provided by an embodiment of the present invention.
- the method may include:
- Step 201a Acquire a sound signal emitted by a sound source within a camera range.
- step 201b it is detected whether the frequency band of the sound signal is within the preset frequency range.
- step 201c if the frequency band in which the detection result is the sound signal is within the preset frequency range, it is determined that the position where the sound source is located is the human body position.
- the smart camera can determine the position of the human body based on the sound signal emitted by the sound source within the detectable range.
- the intelligent camera has a sound signal collecting device therein. During a preset period of time, the sound signal collecting device in the smart camera collects the sound signal emitted by the sound source, and averages the sound signal collected during the preset time.
- the specific time of the preset time is not limited, and can be set to 30s, or it can be set to 1min. If the average value is within a preset frequency range, it is determined that the location of the sound source is the human body position.
- the preset frequency band range should be the frequency range of the normal human communication, for example, the frequency range of the normal human voice conversation is 130-350 Hz.
- FIG. 2C is a flowchart illustrating another method for determining a human body within a camera-capable range provided by an embodiment of the present invention.
- the method may include:
- Step 201d Acquire an infrared signal emitted by an infrared signal source within a camera range.
- Step 201e Detect whether the spectral characteristic of the infrared signal matches the preset spectrum.
- step 201f if the detection result is that the spectral characteristic of the infrared signal matches the preset spectrum, it is determined that the position of the infrared signal source is the human body position.
- the smart camera can determine the position of the human body through the spectral characteristics of the infrared signal.
- the spectral characteristics of the infrared signal may include the frequency of the infrared signal and the wavelength of the infrared signal. Different types of objects have different spectral characteristics of the infrared signals.
- the spectrum features of the human body can be set as preset spectral features, and subsequent preset spectral features are detected. When the object is matched, it can be determined that the object is a human body.
- step 202 the shooting angle of the camera is adjusted.
- the image at the human body position can be placed at the center of the video image captured by the camera.
- a micro motor is disposed inside the smart camera. After the camera determines the position of the human body, the micro motor in the camera starts to work, and the shooting angle of the camera is adjusted so that the image at the human body position is located at the center of the captured video image.
- step 203 the face position in the video picture captured by the camera is determined by face recognition.
- the camera determines the position of the face in the video picture through face recognition.
- the smart camera is based on human facial features in the video picture, such as ears, eyes, mouth and nose, etc., based on the shape of the facial features and the geometric relationship between them to determine the position of the face.
- step 204 the camera's shooting angle is fine-tuned according to the face position.
- the camera directly makes the image of the face position at the center of the video image captured by the camera.
- one of the face positions may be determined, and subsequent fine adjustment is performed according to the determined face position, wherein multiple faces exist in the video frame.
- Time determination The method of a face position can be as follows:
- FIG. 2D is a flowchart of determining a face position according to an embodiment of the present invention.
- the method may include:
- Step 203a Perform expression recognition on at least one face in the video image captured by the camera.
- the recognized expression is the position of the face of the specified expression in the video screen as the face position.
- the face to be captured by the camera can be determined by the method of expression recognition.
- the smile expression is preset to the specified expression.
- the camera fine-tunes the shooting angle so that the face with the smiling expression is located at the center of the video frame.
- FIG. 2E Please refer to the schematic diagram of the first camera shooting angle adjustment shown in FIG. 2E.
- the shooting screen 20 shown in FIG. 2E there are three human faces, namely faces 20a, 20b and 20c respectively, and the camera detects one of the faces 20c.
- To smile the expression fine-tune the shooting angle so that the face 20c with a smiling expression is at the center of the video frame.
- FIG. 2F illustrates another flowchart for determining a face position according to an embodiment of the present invention.
- the method may include:
- step 203c the video screen is pushed to the user terminal connected to the camera.
- Step 203d Receive selection indication information returned by the user terminal, where the selection indication information is used to indicate a face included in the video screen.
- step 203e the position of the face indicated by the selection indication information in the video screen is determined as the face position.
- the camera may also push the captured video image to the user terminal connected to the camera, and the user may select a face to be photographed, and when the camera receives the user terminal and returns The selection indication message determines the position of the face selected by the selection indication message in the video screen as the face position.
- the photographing screen shown in FIG. 2G is a photographing screen that the camera transmits to the user terminal and displays in the user terminal, and the photographing screen has A, After three faces of B and C, after the user clicks on the area where one of the faces C is located, the user terminal sends the coordinate information of the user click to the camera. After receiving the coordinate information, the camera determines that the user selects the face C according to the coordinate information, and thereafter The camera adjusts the shooting angle so that the face image of the face C is at the center of the captured video frame.
- the camera shooting angle adjustment method shown in the embodiment of the present invention after determining the position of the human body in the photographable range, and adjusting the camera shooting angle to the human body position, fine-tuning the camera according to the position of the face, automatically according to The face position is finely adjusted by the camera shooting angle, and does not require manual adjustment by the user, thereby reducing the difficulty of the user operation and improving the accuracy of the shooting angle adjustment.
- the position of the human body within the photographable range can be determined according to a preset frequency band or time spectrum, and the accurate and effective tracking can be performed.
- the human body in the shooting range so that the camera's shooting angle can be adjusted to the position of the human body, and other animals or objects can be determined as the human body position.
- the face to be photographed by the camera is determined; or, the camera The head pushes the captured video image to the user terminal connected to the camera, and receives the display instruction message of the user terminal to determine the face to be photographed by the user, thereby finely adjusting the shooting angle, so that when there are multiple faces in the detectable range, Adjust the shooting angle according to the user's needs, and display the face that the user needs to shoot in the center of the video screen.
- FIG. 3A is a flowchart of a camera shooting angle adjustment method according to still another exemplary embodiment.
- the camera shooting angle adjustment method is used in a smart camera. As shown in FIG. 3A, the camera shooting angle adjustment method may include the following steps.
- step 301 the position of the human body within the camera's viewable range is determined.
- step 302 the shooting angle of the camera is adjusted.
- step 303 the face position in the video picture captured by the camera is determined by face recognition.
- step 304 the camera's shooting angle is fine-tuned according to the face position.
- step 305 after fine-tuning the shooting angle of the camera according to the face position, the distance of the face image corresponding to the face position from the center of the video image captured by the camera is monitored.
- the camera faces the face image corresponding to the face position from the video.
- the distance in the center of the screen is detected.
- the center point of the video screen 30 taken by the camera is used as a starting point, and the distance from the center point of the video screen 30 to the center of the face image 31 is calculated, and the distance from the center of the video screen 30 to the center of the face image 31 is calculated.
- the distance of the face image corresponding to the face position deviates from the center of the video picture captured by the camera.
- step 306 when it is detected that the distance of the face image from the center of the video image is greater than the preset distance, the camera is further fine-tuned according to the position of the face image, so that the face image is in the The center of the video frame captured by the camera.
- the camera can specify the preset distance as the radius by the center of the video image taken by the camera, and when the distance from the video center to the center of the face image is greater than the preset specified distance, the center of the face image is located in the video screen.
- the center of the circle is the center of the circle, and when the preset distance is outside the circle of the radius, the camera's shooting angle is finely adjusted according to the position of the face image.
- FIG. 3C a schematic diagram of the face position adjustment shown in FIG. 3C.
- the distance from the center of the face image 33 to the center of the video screen 32 is greater than the preset distance in FIG. 3C, that is, the center of the face image 33 is at the center of the center of the video screen 32, and the circle 34 is specified as the radius of the preset distance.
- the shooting angle of the camera is finely adjusted, and the face image 33 is readjusted to the center position of the video screen 32.
- the camera when the camera detects that the distance from the center of the face image to the center of the video screen is greater than the preset distance, the camera does not immediately adjust the shooting angle, but presets for a period of time (for example, the preset time may be 5 seconds or 10 seconds). ), when the distance from the center of the face image to the center of the video screen is greater than the preset distance for more than the preset time, the camera will re-root Fine-tune the shooting angle according to the position of the face image.
- the preset time for example, the preset time may be 5 seconds or 10 seconds.
- the distance and the preset distance of the face image from the center of the video screen are not limited, and the developer or the user may set the method according to the actual use.
- the camera shooting angle adjustment method shown in the embodiment of the present invention after determining the position of the human body in the photographable range, and adjusting the camera shooting angle to the human body position, fine-tuning the camera according to the position of the face, automatically according to The face position is finely adjusted by the camera shooting angle, and does not require manual adjustment by the user, thereby reducing the difficulty of the user operation and improving the accuracy of the shooting angle adjustment.
- the position of the human body within the photographable range can be determined according to a preset frequency band or time spectrum, and the accurate and effective tracking can be performed.
- the human body in the shooting range so that the camera's shooting angle can be adjusted to the position of the human body, and other animals or objects can be determined as the human body position.
- the face to be photographed by the camera is determined by recognizing the expression of the face within the photographable range; or the camera pushes the captured video image to the user terminal connected to the camera, and determines the user by receiving the display instruction message of the user terminal.
- the face to be photographed thereby fine-tuning the shooting angle, so that when there are multiple faces in the detectable range, the shooting angle is adjusted according to the user's needs, and the face that the user needs to shoot is displayed in the middle of the video screen.
- the shooting angle is re-adjusted so that the face position is at the center of the video image, thereby For the best results.
- FIG. 4 is a block diagram of a camera shooting angle adjusting device that can be used in a smart camera according to an exemplary embodiment.
- the camera shooting angle adjusting device includes, but is not limited to, a first positioning module 401 , a first adjusting module 402 , a second positioning module 403 , and a second adjusting module 404 .
- the first positioning module 401 is configured to determine a human body position within a camera detectable range
- the first adjustment module 402 is configured to adjust the shooting angle of the camera such that the image at the human body position determined by the first positioning module 401 is at the center of the video image captured by the camera;
- the second positioning module 403 is configured to determine a face position in a video frame captured by the camera
- the second adjustment module 404 is configured to finely adjust the shooting angle of the camera according to the face position determined by the second positioning module 403, so that the image of the face position is at the center of the video image captured by the camera.
- the camera shooting angle adjusting device shown in the embodiment of the present invention automatically adjusts the camera according to the position of the human face by determining the position of the human body within the photographable range and adjusting the camera shooting angle to the human body position.
- the face position is finely adjusted by the camera shooting angle, and does not require manual adjustment by the user, thereby reducing the difficulty of the user operation and improving the accuracy of the shooting angle adjustment.
- FIG. 5 is a block diagram of a camera shooting angle adjusting device, which may be used in a smart camera, according to another exemplary embodiment.
- the camera shooting angle adjusting device includes, but is not limited to, a first positioning module 501 , a first adjusting module 502 , a second positioning module 503 , and a second adjusting module 504 .
- the first positioning module 501 is configured to determine a human body position within a camera detectable range
- the first adjustment module 502 is configured to adjust the shooting angle of the camera such that the image at the human body position determined by the first positioning module 501 is at the center of the video image captured by the camera;
- the second positioning module 503 is configured to determine a face position in a video frame captured by the camera
- the second adjustment module 504 is configured to finely adjust the shooting angle of the camera according to the face position determined by the second positioning module 503, so that the image of the face position is at the center of the video image captured by the camera.
- the first positioning module 501 includes: a sound collection submodule 501a and a frequency band detection submodule 501b.
- the sound collection sub-module 501a is configured to collect a sound signal emitted by a sound source within a camera-capable range
- the frequency band detecting sub-module 501b is configured to detect whether a frequency band of the sound signal collected by the sound collecting sub-module 501a is within a preset frequency range;
- the detection result is that the frequency band of the sound signal collected by the sound collection sub-module 501a is within the preset frequency range, it is determined that the position of the sound source is the human body position.
- the first positioning module 501 further includes: an infrared collection submodule 501c and a spectrum monitoring submodule 501d.
- the infrared collection sub-module 501c is configured to collect an infrared signal emitted by an infrared signal source within a camera range;
- the spectrum monitoring sub-module 501d is configured to detect whether the spectral feature of the infrared signal collected by the infrared collection sub-module 501c matches the preset spectrum;
- the detection result is that the spectrum characteristic of the infrared signal collected by the infrared collection sub-module 501c matches the preset spectrum, it is determined that the position of the infrared signal source is the human body position.
- the second positioning module 503 includes: an expression recognition submodule 503a and a first positioning submodule 503b.
- the expression recognition sub-module 503a is configured to perform expression recognition on at least one of the faces of the video captured by the camera;
- the first positioning sub-module 503b is configured to determine the position of the face recognized by the expression recognition sub-module 503a as the face of the specified expression in the video picture as the face position.
- the second positioning module 503 further includes: a screen pushing submodule 503c, an information receiving submodule 503d, and a second positioning submodule 503e.
- the screen pushing sub-module 503c is configured to push a video screen to a user terminal connected to the camera;
- the information receiving sub-module 503d is configured to receive the selection indication information returned by the user terminal, and the selection indication information is used to indicate a human face included in the video screen;
- the second positioning sub-module 503e is configured to determine a position of the face indicated by the selection indication information received by the information receiving sub-module 503d in the video screen as a face position.
- the device further includes: a distance monitoring module 505.
- the distance monitoring module 505 is configured to monitor a distance of a face image corresponding to the face position from a center of the video image captured by the camera after fine-tuning the shooting angle of the camera according to the face position;
- the second adjustment module 504 is further configured to finely adjust the shooting angle of the camera according to the position of the face image when the distance monitoring module 505 detects that the distance of the face image from the center of the video screen is greater than the preset distance.
- the face image is at the center of the video frame captured by the camera.
- the camera shooting angle adjusting device shown in the embodiment of the present invention automatically adjusts the camera according to the position of the human face by determining the position of the human body within the photographable range and adjusting the camera shooting angle to the human body position.
- the face position is finely adjusted by the camera shooting angle, and does not require manual adjustment by the user, thereby reducing the difficulty of the user operation and improving the accuracy of the shooting angle adjustment.
- the position of the human body within the photographable range can be determined according to a preset frequency band or time spectrum, and the accurate and effective tracking can be performed.
- the human body in the shooting range so that the camera's shooting angle can be adjusted to the position of the human body, and other animals or objects can be determined as the human body position.
- the face to be photographed by the camera is determined by recognizing the expression of the face within the photographable range; or the camera pushes the captured video image to the user terminal connected to the camera, and determines the user by receiving the display instruction message of the user terminal.
- the face to be photographed thereby fine-tuning the shooting angle, so that when there are multiple faces in the detectable range, the shooting angle is adjusted according to the user's needs, and the face that the user needs to shoot is displayed in the middle of the video screen.
- the shooting angle is re-adjusted so that the face position is at the center of the video image, thereby For the best results.
- An exemplary embodiment of the present invention further provides a camera shooting angle adjusting device, which can implement the camera shooting angle adjusting method provided by the present invention.
- the apparatus includes a processor and a memory for storing executable instructions of the processor.
- processor is configured to:
- Fine-adjusting the shooting angle of the camera according to the face position so that the image of the face position is at the center of the video image captured by the camera.
- the determining the position of the human body within the cameraable range of the camera includes:
- the position is the body position.
- the determining the position of the human body within the cameraable range of the camera includes:
- the detection result is that the spectral characteristic of the infrared signal matches the preset spectrum, determining that the location of the infrared signal source is the human body position.
- the determining a face position in the video image captured by the camera includes:
- the position of the recognized face as the face of the specified expression in the video picture is determined as the face position.
- the determining a face position in the video image captured by the camera includes:
- the position of the face indicated by the selection indication information in the video screen is determined as the face position.
- the processor is further configured to:
- the camera When it is detected that the distance of the face image from the center of the video image is greater than a preset distance, the camera is further fine-tuned according to the position of the face image, so that the face image is in the The center of the video picture captured by the camera.
- FIG. 6 is a block diagram of an apparatus 600, according to an exemplary embodiment.
- device 600 can be a smart camera.
- device 600 can include one or more of the following components: processing component 602, memory 604, power component 606, multimedia component 608, audio component 610, sensor component 614, and communication component 616.
- Processing component 602 typically controls the overall operation of device 600, such as operations associated with display, data communication, camera operations, and recording operations, and the like.
- Processing component 602 can include one or more processors 618 to execute instructions to perform all or part of the steps described above.
- processing component 602 can include one or more modules to facilitate interaction between component 602 and other components.
- processing component 602 can include a multimedia module to facilitate interaction between multimedia component 608 and processing component 602.
- Memory 604 is configured to store various types of data to support operation at device 600. Examples of such data include instructions for any application or method operating on device 600.
- the memory 604 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Disk or Optical Disk. Also stored in the memory 604 There are one or more modules that are configured to be executed by the one or more processors 618 to perform all or part of the steps of any of the methods illustrated in Figures 1, 2A, or 3A above.
- Power component 606 provides power to various components of device 600.
- Power component 606 can include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for device 600.
- the multimedia component 608 includes a screen between the device 600 and the user that provides an output interface.
- the screen can include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen can be implemented as a touch screen to receive input signals from the user.
- the touch panel includes one or more touch sensors to sense touches, slides, and gestures on the touch panel. The touch sensor can sense not only the boundary of the touch or sliding action, but also the duration and pressure associated with the touch or slide operation.
- the audio component 610 is configured to output and/or input an audio signal.
- audio component 610 includes a microphone (MIC) that is configured to receive an external audio signal when device 600 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode.
- the received audio signal may be further stored in memory 604 or transmitted via communication component 616.
- audio component 610 also includes a speaker for outputting an audio signal.
- Sensor assembly 614 includes one or more sensors for providing device 600 with a status assessment of various aspects.
- sensor assembly 614 can detect an open/closed state of device 600, relative positioning of components, and sensor assembly 614 can also detect changes in position of one component of device 600 or device 600 and temperature changes of device 600.
- the sensor assembly 614 can also include a magnetic sensor, a pressure sensor, or a temperature sensor.
- Communication component 616 is configured to facilitate wired or wireless communication between device 600 and other devices.
- the device 600 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof.
- communication component 616 receives broadcast signals or broadcast associated information from an external broadcast management system via a broadcast channel.
- the communication component 616 also includes a near field communication (NFC) module to facilitate short range communication.
- NFC near field communication
- the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
- RFID radio frequency identification
- IrDA infrared data association
- UWB ultra-wideband
- Bluetooth Bluetooth
- device 600 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable A gate array (FPGA), controller, microcontroller, microprocessor, or other electronic component implementation for performing the above methods.
- ASICs application specific integrated circuits
- DSPs digital signal processors
- DSPDs digital signal processing devices
- PLDs programmable logic devices
- FPGA field programmable A gate array
- controller microcontroller, microprocessor, or other electronic component implementation for performing the above methods.
- non-transitory computer readable storage medium comprising instructions, such as a memory 604 comprising instructions executable by processor 618 of apparatus 600 to perform the above method.
- the non-transitory computer readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, and an optical data storage device.
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- Oral & Maxillofacial Surgery (AREA)
- General Health & Medical Sciences (AREA)
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- Computational Linguistics (AREA)
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Abstract
Description
Claims (13)
- 一种摄像头拍摄角度调整方法,其特征在于,所述方法包括:确定摄像头可拍摄范围内的人体位置;对所述摄像头的拍摄角度进行调整,使所述人体位置处的图像处于所述摄像头拍摄到的视频画面的中心;确定所述摄像头拍摄到的视频画面中的人脸位置;根据所述人脸位置对所述摄像头的拍摄角度进行微调,使所述人脸位置的图像处于所述摄像头拍摄到的视频画面的中心。
- 根据权利要求1所述的方法,其特征在于,所述确定摄像头可拍摄范围内的人体位置,包括:采集所述摄像头可拍摄范围内的声源发出的声音信号;检测所述声音信号的频段是否处于预设频段范围之内;若检测结果为所述声音信号的频段处于所述预设频段范围之内,则确定所述声源所在的位置为所述人体位置。
- 根据权利要求1所述的方法,其特征在于,所述确定摄像头可拍摄范围内的人体位置,包括:采集所述摄像头可拍摄范围内的红外信号源发出的红外信号;检测所述红外信号的频谱特征是否与预设频谱相匹配;若检测结果为所述红外信号的频谱特征与所述预设频谱相匹配,则确定所述红外信号源所在的位置为所述人体位置。
- 根据权利要求1所述的方法,其特征在于,所述确定所述摄像头拍摄到的视频画面中的人脸位置,包括:对所述摄像头拍摄到的视频画面中的至少一个人脸进行表情识别;将识别出的表情为指定表情的人脸在所述视频画面中的位置确定为所述人脸位置。
- 根据权利要求1所述的方法,其特征在于,所述确定所述摄像头拍摄到的视频画面中的人脸位置,包括:向与所述摄像头相连接的用户终端推送所述视频画面;接收所述用户终端返回的选择指示信息,所述选择指示信息用于指示所述视频画面中包含的人脸;将所述选择指示信息所指示的人脸在所述视频画面中的位置确定为所述人脸位置。
- 根据权利要求1所述的方法,其特征在于,所述方法还包括:在根据所述人脸位置对所述摄像头的拍摄角度进行微调之后,监测所述人脸位置对应的人脸图像偏离所述摄像头拍摄的视频画面的中心的距离;当检测到所述人脸图像偏离所述视频画面的中心的距离大于预设距离时,重新根据所述人脸图像的位置对所述摄像头的拍摄角度进行微调,使所述人脸图像处于所述摄像头拍摄到的视频画面的中心。
- 一种摄像头拍摄角度调整装置,其特征在于,所述装置包括:第一定位模块,被配置为确定摄像头可拍摄范围内的人体位置;第一调整模块,被配置为对所述摄像头的拍摄角度进行调整,使所述第一定位模块确定的所述人体位置处的图像处于所述摄像头拍摄到的视频画面的中心;第二定位模块,被配置为确定所述摄像头拍摄到的视频画面中的人脸位置;第二调整模块,被配置为根据所述第二定位模块确定的所述人脸位置对所述摄像头的拍摄角度进行微调,使所述人脸位置的图像处于所述摄像头拍摄到的视频画面的中心。
- 根据权利要求7所述的装置,其特征在于,所述第一定位模块,包括:声音采集子模块,被配置为采集所述摄像头可拍摄范围内的声源发出的声音信号;频段检测子模块,被配置为检测所述声音采集子模块采集的所述声音信号的频段是否处于预设频段范围之内;若检测结果为所述声音采集子模块采集的所述声音信号的频段处于所述预设频段范围之内,则确定所述声源所在的位置为所述人体位置。
- 根据权利要求7所述的装置,其特征在于,所述第一定位模块,还包括:红外采集子模块,被配置为采集所述摄像头可拍摄范围内的红外信号源发出的红外信号;频谱监测子模块,被配置为检测所述红外线采集子模块采集的所述红外信号的频谱特征是否与预设频谱相匹配;若检测结果为所述红外采集子模块采集的所述红外信号的频谱特征与所述预设频谱相匹配,则确定所述红外信号源所在的位置为所述人体位置。
- 根据权利要求7所述的装置,其特征在于,所述第二定位模块,包括:表情识别子模块,被配置为对所述摄像头拍摄到的视频画面中的至少一个人脸进行表情识别;第一定位子模块,用于将所述表情识别子模块识别出的表情为指定表情的人脸在所述视频画面中的位置确定为所述人脸位置。
- 根据权利要求7所述的装置,其特征在于,所述第二定位模块,还包括:画面推送子模块,被配置为向与所述摄像头相连接的用户终端推送所述视频画面;信息接收子模块,被配置为接收所述用户终端返回的选择指示信息,所述选择指示信息用于指示所述视频画面中包含的人脸;第二定位子模块,用于将所述信息接收子模块接收的所述选择指示信息所指示的人脸在所述视频画面中的位置确定为所述人脸位置。
- 根据权利要求7所述的装置,其特征在于,所述装置还包括:距离监测模块,被配置为在根据所述人脸位置对所述摄像头的拍摄角度进行微调之后,监测所述人脸位置对应的人脸图像偏离所述摄像头拍摄的视频画面的中心的距离;所述第二调整模块,还被配置为当所述距离监测模块检测到所述人脸图像偏离所述视频画面的中心的距离大于预设距离时,重新根据所述人脸图像的位置对所述摄像头的拍摄角度进行微调,使所述人脸图像处于所述摄像头拍摄到的视频画面的中心。
- 一种摄像头拍摄角度调整装置,其特征在于,所述装置包括:处理器;用于存储所述处理器的可执行指令的存储器;其中,所述处理器被配置为:确定摄像头可拍摄范围内的人体位置;对所述摄像头的拍摄角度进行调整,使所述人体位置处的图像处于所述摄像头拍摄到的视频画面的中心;确定所述摄像头拍摄到的视频画面中的人脸位置;根据所述人脸位置对所述摄像头的拍摄角度进行微调,使所述人脸位置的图像处于所述摄像头拍摄到的视频画面的中心。
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CN105357442A (zh) | 2016-02-24 |
JP6441958B2 (ja) | 2018-12-19 |
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