Abstract: Main technical features of a sealing mechanism of a pressure vessel provided by the invention are a sealing unit for airtightly combining with the vessel, and a combination unit for positioning the sealing unit in the airtight combination state, and there are common structures disposed between constituent elements of the sealing unit and the combination unit, so that the sealing unit and the combination unit can be combined with each other in order to facilitate use and storage and to avoid losing or missing parts.

Abstract: A computing device captures a live video of a user. For a first frame of the live video, the computing device obtains first target positional coordinates of a first target point located a first predetermined distance from the computing device and obtains first background data. For a second frame, the computing device obtains second target positional coordinates of a second target point located a second predetermined distance from the computing device and obtains second background data. The computing device calculates a target motion vector based on the first target point and the second target point and calculates a background motion vector based on feature points in the first background data and the second background data. The computing device determines a difference value between the target motion vector and the background motion vector and determines whether the user is spoofing the computing device based on the difference value.

Abstract: Main technical features of a sealing mechanism of a pressure vessel provided by the invention are a sealing unit for airtightly combining with the vessel, and a combination unit for positioning the sealing unit in the airtight combination state, and there are common structures disposed between constituent elements of the sealing unit and the combination unit, so that the sealing unit and the combination unit can be combined with each other in order to facilitate use and storage and to avoid losing or missing parts.

Abstract: A computing device captures a live video of a user. For a first frame of the live video, the computing device obtains first target positional coordinates of a first target point located a first predetermined distance from the computing device and obtains first background data. For a second frame, the computing device obtains second target positional coordinates of a second target point located a second predetermined distance from the computing device and obtains second background data. The computing device calculates a target motion vector based on the first target point and the second target point and calculates a background motion vector based on feature points in the first background data and the second background data. The computing device determines a difference value between the target motion vector and the background motion vector and determines whether the user is spoofing the computing device based on the difference value.

Abstract: A computing device captures a live video of a user. For a first frame of the live video, the computing device identifies a first facial region of the user, determines a first plurality of regions of interest within the first facial region, and identifies feature points for each of the first plurality of regions of interest. For a second frame, the computing device identifies a second facial region of the user, determines a second plurality of regions of interest within the second facial region, and identifies feature points for each of the second plurality of regions of interest. The computing device generates transformed coordinates of first background feature points. The computing device determines a difference value between coordinates of second background feature points and the transformed coordinates of the first background feature points. The computing device determines whether the user is spoofing the computing device based on the difference value.

Abstract: In an instant messaging device, a selection is received from a user, where the selection specifying a plurality of contacts to participate in an instant messaging session. At least one attribute type corresponding to the at least one intended recipient is retrieved in response to detecting a trigger event relating to a message intended for at least one recipient among the plurality of contacts. A verification operation is retrieved for each of the retrieved at least one attribute type. At least one retrieved verification operations is executed. The message is sent to the at least one intended recipient in response to successful execution of the at least one of the retrieved verification operations.

Abstract: In an instant messaging device, a selection is received from a user, where the selection specifying a plurality of contacts to participate in an instant messaging session. At least one attribute type corresponding to the at least one intended recipient is retrieved in response to detecting a trigger event relating to a message intended for at least one recipient among the plurality of contacts. A verification operation is retrieved for each of the retrieved at least one attribute type. At least one retrieved verification operations is executed. The message is sent to the at least one intended recipient in response to successful execution of the at least one of the retrieved verification operations.

Abstract: A measuring device includes an audio collection module, an audio player module and a switch module. The audio player module electrically connects to the audio collection module, and the switch module electrically connects to the audio player module. The audio collection module collects sounds to generate an audio signal. The audio player module plays the audio signal. The switch module sets an enabling signal for controlling the audio player module. The enabling signal is set to be at either a first state or a second state different from the first state. When the enabling signal is at the first state, the audio player module plays the audio signal under a first output mode. When the enabling signal is at the second state, the audio player module plays the audio signal under a second output mode different from the first output mode.

Abstract: A wireless transmission device includes an audio fetching module, a storage module, a processing module and a wireless transmission module. The processing module electrically connects to the audio fetching module and the storage module, and the wireless transmission module electrically connects to the processing module. The audio fetching module acquires an audio signal. The processing module either stores the audio signal in the storage module or reads out the stored audio signal when being enabled. The wireless transmission module enables the processing module and transmits the stored audio signal according to the transmission enabling signal.

Abstract: An image evaluation system and method are provided. The system includes an image register, an evaluation window, an image feature generator, and an evaluation unit. In addition, the image evaluation method includes the steps of in case that the image is a human figure, the image is analyzed based on a basic rule of image composition, and an evaluation score is calculated according to the position of the face feature in the image as analyzed and obtained from the image; in case that the image is a landscape, first if a horizontal line exists in the image is determined, if the answer is affirmative, the evaluation score is calculated based on the inclination of a horizontal line in the image; and the evaluation score is reported to the user as a reference. As such, the user may determine the quality of the image based on the evaluation score.

Abstract: An image evaluation system and method are provided. The system includes an image register, an evaluation window, an image feature generator, and an evaluation unit. In addition, the image evaluation method includes the steps of in case that the image is a human figure, the image is analyzed based on a basic rule of image composition, and an evaluation score is calculated according to the position of the face feature in the image as analyzed and obtained from the image; in case that the image is a landscape, first if a horizontal line exists in the image is determined, if the answer is affirmative, the evaluation score is calculated based on the inclination of a horizontal line in the image; and the evaluation score is reported to the user as a reference. As such, the user may determine the quality of the image based on the evaluation score.