Back to results
US 12,700,275 B2Granted
Vehicle unlocking method, system, and apparatus, vehicle, and storage medium
AssigneeYinwang Intelligent Technologies Co., Ltd.
InventorsChengming Liu, Weiran Nie, Junhao Zhang
Life of this patent
Estimating the term…
Abstract
Example vehicle unlocking methods and apparatus are described. In one example method, wakeup keyword detection is performed on an obtained voice signal. If the voice signal includes a wakeup keyword, an acoustic source direction is determined, and a target camera is indicated to collect image data. The target camera is a target camera that is installed on the vehicle and whose angle of view can ensure that the acoustic source direction is captured. Then, the vehicle is unlocked based on the image data collected by the target camera.
Claims20
A vehicle unlocking method, wherein the vehicle unlocking method comprises:
- obtaining a voice signal;
- in response to determining that the voice signal comprises a wakeup keyword, extracting a voiceprint feature in the voice signal, wherein the wakeup keyword indicates that a vehicle needs to be unlocked;
- in response to determining that the extracted voiceprint feature matches a stored voiceprint feature, determining an acoustic source direction based on the voice signal;
- selecting, based on the acoustic source direction and from a plurality of cameras installed on the vehicle, a camera installed on the vehicle as a target camera to collect image data, wherein an angle of view of the target camera is configured to capture the acoustic source direction;
- indicating, based on the acoustic source direction, the target camera to collect the image data;
- and
- unlocking the vehicle based on the image data collected by the target camera, wherein:
- unlocking the vehicle based on the image data collected by the target camera comprises matching the image data collected by the target camera comprises matching the image data collected by the target camera with stored figure image data,
- wherein matching the image data collected by the target camera with stored figure image data comprises extracting a facial feature of a figure that is recognized in the image data and that is located in the acoustic source direction,
- wherein extracting the facial feature of a figure that is recognized in the image data and that is located in the acoustic source direction comprises determining an image region from the image data based on the acoustic source direction, and
- wherein determining the image region from the image data based on the acoustic source direction comprises:
- determining a relative position of the acoustic source direction within the angle of view of the target camera;
- determining a reference position on the image data based on the relative position;
- and
- extending the reference position on the image data to each of a left side and a right side by a reference neighborhood range to obtain the image region.
12 more elements
A vehicle unlocking apparatus, wherein the vehicle unlocking apparatus comprises one or more memories and at least one processor, wherein:
- the one or more memories are configured to store a wakeup keyword, wherein the wakeup keyword is used to indicate that a vehicle currently needs to be unlocked;
- and
- the one or more memories store program instructions for execution by the at least one processor to:
- obtain a voice signal;
- in in response to determining that the voice signal comprises a wakeup keyword, extract a voiceprint feature in the voice signal, wherein the wakeup keyword indicates that a vehicle needs to be unlocked;
- in response to determining that the extracted voiceprint feature matches a stored voiceprint feature, determine an acoustic source direction based on the voice signal;
- select, based on the acoustic source direction and from a plurality of cameras installed on the vehicle, a camera installed on the vehicle as a target camera to collect image data, wherein an angle of view of the target camera is configured to capture the acoustic source direction;
- and
- indicate, based on the acoustic source direction, the target camera to collect the image data;
- and
- unlock the vehicle based on the image data collected by the target camera, wherein:
- unlocking the vehicle based on the image data collected by the target camera comprises matching the image data collected by the target camera comprises matching the image data collected by the target camera with stored figure image data,
- wherein matching the image data collected by the target camera with stored figure image data comprises extracting a facial feature of a figure that is recognized in the image data and that is located in the acoustic source direction,
- wherein extracting the facial feature of a figure that is recognized in the image data and that is located in the acoustic source direction comprises determining an image region from the image data based on the acoustic source direction, and
- wherein determining the image region from the image data based on the acoustic source direction comprises:
- determining a relative position of the acoustic source direction within the angle of view of the target camera;
- determining a reference position on the image data based on the relative position;
- and
- extending the reference position on the image data to each of a left side and a right side by a reference neighborhood range to obtain the image region.
16 more elements
A non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium stores program instructions for execution by at least one processor to:
- obtain a voice signal;
- in response to determining that the voice signal comprises a wakeup keyword, extract a voiceprint feature in the voice signal, wherein the wakeup keyword indicates that a vehicle needs to be unlocked;
- in response to determining that the extracted voiceprint feature matches a stored voiceprint feature, determine an acoustic source direction based on the voice signal;
- select, based on the acoustic source direction and from a plurality of cameras installed on the vehicle, a camera installed on the vehicle as a target camera to collect image data, wherein an angle of view of the target camera is configured to capture the acoustic source direction;
- indicate, based on the acoustic source direction, the target camera to collect the image data;
- and
- unlock the vehicle based on the image data collected by the target camera wherein:
- unlocking the vehicle based on the image data collected by the target camera comprises matching the image data collected by the target camera comprises matching the image data collected by the target camera with stored figure image data,
- wherein matching the image data collected by the target camera with stored figure image data comprises extracting a facial feature of a figure that is recognized in the image data and that is located in the acoustic source direction,
- wherein extracting the facial feature of a figure that is recognized in the image data and that is located in the acoustic source direction comprises determining an image region from the image data based on the acoustic source direction, and
- wherein determining the image region from the image data based on the acoustic source direction comprises:
- determining a relative position of the acoustic source direction within the angle of view of the target camera;
- determining a reference position on the image data based on the relative position;
- and
- extending the reference position on the image data to each of a left side and a right side by a reference neighborhood range to obtain the image region.
12 more elements
Dependencies are inferred from the claim text.