Abstract: The present invention relates to a composition comprising an amino acid-modified polymer, a carboxypolysaccharide, and may further include a metal ion for anti-adhesion and vector application. More specifically, the invention relates to a thermosensitive composition having enhanced mechanical and improved water-erosion resistant properties for efficiently preventing tissue adhesions and can serve as a vector with bio-compatible, bio-degradable/absorbable, and in-vivo sustainable properties.

Abstract: Synthetic amino acid-modified polymers and methods of making the same and using the same are disclosed. The synthetic amino acid-modified polymers possess distinct thermosensitive, improved water-erosion resistant, and enhanced mechanical properties, and are suitable of reducing or preventing formation of postoperative tissue adhesions. Additionally, the amino acid-modified polymers can also be used as a vector to deliver pharmaceutically active agents.

Abstract: The embodiments of the disclosure provide an object tracking method and a host. The method includes: determining a reference motion state based on a first predicted motion state and a calibration factor; obtaining a first motion data of the host and a second motion data of a reference object; determining a first relative pose of the reference object relative to the host based on the first motion data, the second motion data, and the reference motion state; and determining a specific pose of the reference object based on the first relative pose.

Abstract: A system and a method for remotely controlling extended reality by a virtual mouse are provided. The system includes a head mounted display and a first remote controller for being worn on a hand. The head mounted display includes an image capture device. The first remote controller communicatively connects to the head mounted display, wherein the head mounted display is configured to: capture an image through the image capture device; detect the image to obtain first data of the hand in the image and second data of a plane in the image; and enable the virtual mouse according to the first data and the second data.

Abstract: A motion computing system for virtual reality is provided, which comprises a wearable device and a head-mounted display. The head-mounted display performs following steps for: setting a wearing position of the wearable device; determining whether to generate a hand model having finger skeleton data for the hand of the user is found in a monitored field by a hand tracking algorithm; in response respond to that determine the hand model is found in the monitored field, identifying a device position according to the wearing position and the finger skeleton data, and identifying a device rotation of the wearable device in the monitored field according to the inertial data; calculating a pointer direction in the monitored field according to the device position and the device rotation; and generating a ray in a virtual reality field according to the pointer direction and the device position.

Abstract: The present disclosure provides a human-computer interaction method and system. The method includes following operations: by a motion sensor, sensing a hand movement to generate a movement signal; by a camera module, capturing a plurality of images of the hand movement; by at least one processor, generating a plurality of feature values according to the movement signal adjusted based on hand movement information, wherein the hand movement information is generated by analyzing the plurality of images of the hand movement; and by the at least one processor, controlling a virtual object by a first hand gesture determined by a hand gesture determination model according to the plurality of feature values.

Abstract: A motion computing system for virtual reality is provided, which comprises a wearable device and a head-mounted display. The head-mounted display performs following steps for: setting a wearing position of the wearable device; determining whether to generate a hand model having finger skeleton data for the hand of the user is found in a monitored field by a hand tracking algorithm; in response respond to that determine the hand model is found in the monitored field, identifying a device position according to the wearing position and the finger skeleton data, and identifying a device rotation of the wearable device in the monitored field according to the inertial data; calculating a pointer direction in the monitored field according to the device position and the device rotation; and generating a ray in a virtual reality field according to the pointer direction and the device position.

Abstract: The present disclosure provides a human-computer interaction method and system. The method includes following operations: by a motion sensor, sensing a hand movement to generate a movement signal; by a camera module, capturing a plurality of images of the hand movement; by at least one processor, generating a plurality of feature values according to the movement signal adjusted based on hand movement information, wherein the hand movement information is generated by analyzing the plurality of images of the hand movement; and by the at least one processor, controlling a virtual object by a first hand gesture determined by a hand gesture determination model according to the plurality of feature values.

Abstract: A tracking method for tracking a head-mounted device includes following steps. First pose data of the head-mounted device is tracked in an inside-out coordinate system. Second pose data of the head-mounted device is tracked in an outside-in coordinate system. A transformation relationship between the inside-out coordinate system and the outside-in coordinate system is calculated according to the first pose data and the second pose data. The first pose data in the inside-out coordinate system is transformed into third pose data in the outside-in coordinate system according to the transformation relationship. In response to that the second pose data is currently available, the second pose data is utilized to determine a device pose of the head-mounted device. In response to that the second pose data is currently unavailable, the third pose data is utilized to determine the device pose of the head-mounted device.

Abstract: A tracking method for tracking a head-mounted device includes following steps. First pose data of the head-mounted device is tracked in an inside-out coordinate system. Second pose data of the head-mounted device is tracked in an outside-in coordinate system. A transformation relationship between the inside-out coordinate system and the outside-in coordinate system is calculated according to the first pose data and the second pose data. The first pose data in the inside-out coordinate system is transformed into third pose data in the outside-in coordinate system according to the transformation relationship. In response to that the second pose data is currently available, the second pose data is utilized to determine a device pose of the head-mounted device. In response to that the second pose data is currently unavailable, the third pose data is utilized to determine the device pose of the head-mounted device.

Abstract: A tracking system is provided. The tracking system comprises a trackable device which comprises a first illuminating module and the first illuminating module emits an infrared (IR) light and a tracking device which comprises an optical sensing module and a processor. The optical module is configured to sense an IR spectrum to capture a first image and sense a visible spectrum to capture a second image, and the IR light is in the IR spectrum. The processor is coupled to the optical sensing module. The processor is configured to search in the first image a first region corresponding to the IR light, locate in the second image a second region associated with the first region in the first image, and calculate a spatial status of the trackable device according to the second region in the second image.

Abstract: An object tracking method includes configuring a color of a first illuminating object to vary in a first pattern, capturing the first illuminating object according to a first color during a first time period, and capturing the first illuminating object according to a second color during a second time period after the first time period, wherein the second color is different from the first color.

Abstract: A tracking system is provided. The tracking system comprises a trackable device which comprises a first illuminating module and the first illuminating module emits an infrared (IR) light and a tracking device which comprises an optical sensing module and a processor. The optical module is configured to sense an IR spectrum to capture a first image and sense a visible spectrum to capture a second image, and the IR light is in the IR spectrum. The processor is coupled to the optical sensing module. The processor is configured to search in the first image a first region corresponding to the IR light, locate in the second image a second region associated with the first region in the first image, and calculate a spatial status of the trackable device according to the second region in the second image.

Abstract: An object tracking method includes configuring a color of a first illuminating object to vary in a first pattern, capturing the first illuminating object according to a first color during a first time period, and capturing the first illuminating object according to a second color during a second time period after the first time period, wherein the second color is different from the first color.