Abstract: A method for simultaneous localization and mapping. The method includes the step of detecting two-dimensional (2D) feature points from a current frame captured by a camera; matching the 2D feature points from the current frame directly to three-dimensional (3D) map points in a 3D map, so as to obtain correspondence between the 2D feature points and the 3D map points; and computing a current pose of the camera based on the obtained correspondence. Each of the 2D feature points and the 3D map points has a feature descriptor. The step of matching is performed by comparing the feature descriptors of the 2D feature points and the feature descriptors of the 3D map points.

Abstract: The invention relates to medicinal use of liposomes for the treatment of chronic viral hepatitis B, wherein said liposomes are prepared from phospholipid and cholesterol. This invention further relates to uses of said liposomes for the manufacture of medicaments for promoting the seroconversion of Hepatitis B e antibody to positive and the seroconversion of Hepatitis B e antigen to negative in patients with chronic viral hepatitis B, for reducing the hepatitis B virus titer in the peripheral blood serum of patients with chronic viral hepatitis B, for reducing the concentration of glutamic-pyruvic transaminase in the peripheral blood serum of patients with chronic viral hepatitis B, and for maintaining the stability of the T cell receptor repertoire in patients with chronic viral hepatitis B.

Abstract: A system and method for realizing augmented reality. The system includes a visual sensor configured to capture images of an environment and a computing device in communication with the visual sensor. The computing device has a processor and a storage device storing computer executable code. The computer executable code, when executed at the processor, is configured to: identify two-dimensional (2D) objects in the captured images; construct a three-dimensional (3D) map of the environment using the captured images; define 3D objects in the 3D map by mapping the 2D objects identified in the captured images to the corresponding points in the 3D map; and render a 3D model on the 3D map based on the 3D objects defined in the 3D map.

Abstract: A method for simultaneous localization and mapping. The method includes the step of detecting two-dimensional (2D) feature points from a current frame captured by a camera; matching the 2D feature points from the current frame directly to three-dimensional (3D) map points in a 3D map, so as to obtain correspondence between the 2D feature points and the 3D map points; and computing a current pose of the camera based on the obtained correspondence. Each of the 2D feature points and the 3D map points has a feature descriptor. The step of matching is performed by comparing the feature descriptors of the 2D feature points and the feature descriptors of the 3D map points.

Abstract: A system and method for realizing multi-user augmented reality. The system includes a first and second computing devices in communication with each other, and respectively constructing a first and a second three-dimensional (3D) maps of a same environment at different viewing angles and positions. The first and second computing devices are configured to assign one of the 3D maps as a reference map, and align the other one of the 3D maps to the reference map, such that the 3D maps have the same coordinate system. A 3D model of a product is also placed and rendered in the two 3D maps, and the operation of the 3D model in one computing device is reflected in the other computing device at real time.

Abstract: The present invention provides a device for detecting the presence of an analyte in a liquid sample. The device has an opening for introducing the liquid sample into a first chamber for collecting the liquid sample, and a second chamber connected to the first chamber by a passageway and containing a test element. The device also has a third chamber connected to the second chamber by a channel and containing a movable member having first and second positions. The third chamber is divided by the movable member into first and second zones, and the first zone has a vent hole. The movable member is in contact with at least one wall of the third chamber to prevent gas communication between the first and second zones.

Abstract: A device for detecting the presence or amount of an analyte in a fluid sample and method thereof, comprises a sample collector and a receiving cup for receiving and holding the sample collector within the receiving cup. The sample collector contains a compressible absorbent member for collecting the fluid sample, and has a first position and a second, locked position within the receiving cup. The absorbent member is uncompressed in the first position and is compressed in the second, locked position. The sample collector or the receiving cup has at least one test element having reagents for detecting the presence or amount of the analyte in the fluid sample.

Abstract: The present invention relates to immunogens for treatment of hepatitis B and their preparation and use, and to vaccines or medicaments comprising said immunogens for treatment of hepatitis B and their preparation and use.

Abstract: Medical and environmental diagnostic devices are described and claimed. Preferred embodiments feature cup (1) within cup configurations wherein one cup is dedicated, for the most part, to sample collection and another cup (2) is dedicated, for the most part, to assay performance. Communication between the cups is afforded by what is believed to be a unique valve assembly (3) and lid (7) tandem.

Abstract: A device for detecting the presence or amount of an analyte in a fluid sample and method thereof, comprises a sample collector and a receiving cup for receiving and holding the sample collector within the receiving cup. The sample collector contains a compressible absorbent member for collecting the fluid sample, and has a first position and a second, locked position within the receiving cup. The absorbent member is uncompressed in the first position and is compressed in the second, locked position. The sample collector or the receiving cup has at least one test element having reagents for detecting the presence or amount of the analyte in the fluid sample.

Abstract: The present invention is directed to devices and methods for determining the presence of analyte in a fluid sample. The devices utilize a sample collection well, an expression plate for expressing sample into the sample collection well, a plunger that drives a lance, and a test compartment containing test elements. The devices also preserve an aliquot of fluid sample in a reservoir for later confirmation testing. When the plunger is lowered into the sample collection well, a lance on the device punctures a frangible material that covers a sample outlet. When the sample outlet is thus opened, fluid sample flows from the sample collection cup to the test compartment. In one embodiment the plunger is lowered as a cap is applied to the device. The devices are useful for detecting the presence of analyte in a wide variety of fluid samples, such as saliva, oral fluids, and more. The invention also provides methods of using the devices, and kits containing the devices.

Abstract: The present invention provides a device (100) for detecting the presence of an analyte in a liquid sample. The device (100) has an opening (115) for introducing the liquid sample into a first chamber (301) for collecting the liquid sample, and a second chamber (601) connected to the first chamber (301) by a passageway (205) and containing a test element. The device also has a third chamber (701) connected to the second chamber (601) by a channel and containing a movable member (311) having first and second positions. The third chamber (701) is divided by the movable member (311) into first (901) and second (902) zones, and the first zone (901) has a vent hole (165). The movable member (311) is in contact with at least one wall of the third chamber (701) to prevent gas communication between the first and second zones (901, 902).

Abstract: A device for detecting the presence or amount of an analyte in a fluid sample and method thereof, comprises a sample collector and a receiving cup for receiving and holding the sample collector within the receiving cup. The sample collector contains a compressible absorbent member for collecting the fluid sample, and has a first position and a second, locked position within the receiving cup. The absorbent member is uncompressed in the first position and is compressed in the second, locked position. The sample collector or the receiving cup has at least one test element having reagents for detecting the presence or amount of the analyte in the fluid sample.

Abstract: Medical and environmental diagnostic devices are described and claimed. Preferred embodiments feature cup within cup configurations wherein one cup is dedicated, for the most part, to sample collection and another cup is dedicated, for the most part, to assay performance. Communication between the cups is afforded by what is believed to be a unique valve assembly and lid tandem.

Abstract: The present invention provides test devices for detecting an analyte suspected of being present in a liquid sample. The devices contain a reservoir compartment, a test compartment, and a port for a sample collection well. The devices also have a rotatable sample collection well located in the port. The device has an upper chamber for insertion of a sample applicator, an expression plate for wringing out the sample applicator and applying sample to the device, a lower chamber, and an aliquot outlet and a reservoir outlet for the movement of sample through the device. The device also contains test elements for detecting the analyte of interest. By rotating the sample collection well, the operator is able to direct distribution of collected sample in the device. Methods of using the devices and kits containing the devices are also provided.

Abstract: The present invention is directed to devices and methods for determining the presence of analyte in a fluid sample. The devices utilize a sample collection well, an expression plate for expressing sample into the sample collection well, a plunger that drives a lance, and a test compartment containing test elements. The devices also preserve an aliquot of fluid sample in a reservoir for later confirmation testing. When the plunger is lowered into the sample collection well, a lance on the device punctures a frangible material that covers a sample outlet. When the sample outlet is thus opened, fluid sample flows from the sample collection cup to the test compartment. In one embodiment the plunger is lowered as a cap is applied to the device. The devices are useful for detecting the presence of analyte in a wide variety of fluid samples, such as saliva, oral fluids, and more. The invention also provides methods of using the devices, and kits containing the devices.

Abstract: Disclosed is a device for collecting a fluid specimen. The device comprises a container that can receive a fluid specimen; a plunger movably positioned within the container, wherein the plunger can move from an initial position at an upper region of the container to a secondary position below the first position; a fluid segregation chamber that can receive a portion of the fluid specimen from the container, wherein any fluid in the segregation chamber is segregated from the fluid specimen in the container; a fluid flow lumen that provides a passageway for at least a portion of the fluid specimen to flow into the fluid segregation chamber, wherein a first end of the passageway has a first opening that opens into the fluid segregation chamber and a second end of the passageway has a second opening that can receive at least a portion of the fluid specimen; and a seal member that covers the first opening or the second opening to prevent fluid from flowing therethrough.

Abstract: Medical and environmental diagnostic devices are described and claimed. Preferred embodiments feature cup (1) within cup configurations wherein one cup is dedicated, for the most part, to sample collection and another cup (2) is dedicated, for the most part, to assay performance. Communication between the cups is afforded by what is believed to be a unique valve assembly (3) and lid (7) tandem.

Abstract: The present invention discloses a device for detecting the presence or amount of an analyte in a fluid sample. The device has a sample collector and a receiving cup for receiving and holding the sample collector within the receiving cup. The sample collector contains a compressible absorbent member for collecting the fluid sample, and has a first position and a second, locked position within the receiving cup. The absorbent member is uncompressed in the first position and is compressed and held within the cup in the second, locked position. The sample collector or the receiving cup has at least one test element having reagents for detecting the presence or amount of the analyte in the fluid sample. In one embodiment the test element is in fluid communication with the absorbent member when the sample collector is in the second, locked position. The present invention also discloses a method for detecting the presence or amount of an analyte in a fluid sample using the aforesaid device.

Abstract: The present invention provides a device for detecting the presence of an analyte in a liquid sample. The device has an opening for introducing the liquid sample into a first chamber for collecting the liquid sample, and a second chamber connected to the first chamber by a passageway and containing a test element. The device also has a third chamber connected to the second chamber by a channel and containing a movable member having first and second positions. The third chamber is divided by the movable member into first and second zones, and the first zone has a vent hole. The movable member is in contact with at least one wall of the third chamber to prevent gas communication between the first and second zones.