Abstract: A device and method for efficient computation of statistical information, such as a mean, co-variance, or histogram of the image pixels, over discrete image regions. The computation employs integral computations to determine the statistical information over image regions of arbitrary shape, including irregular polygonal shaped regions. The integral computations are simplified by categorizing corner points of boundaries of image regions. The computation can be applied to calculate descriptors or signatures of persons or objects within an image. The computation also has a low computational cost enabling fast calculation of image statistics.

Abstract: A device and method for processing an image to create appearance and shape labeled images of a person or object captured within the image. The appearance and shape labeled images are unique properties of the person or object and can be used to re-identify the person or object in subsequent images. The appearance labeled image is an aggregate of pre-stored appearance labels that are assigned to image segments of the image based on calculated appearance attributes of each image segment. The shape labeled image is an aggregate of pre-stored shape labels that are assigned to image segments of the image based on calculated shape attributes of each image segment. An identifying descriptor of the person or object can be computed based on both the appearance labeled image and the shape labeled image. The descriptor can be compared with other descriptors of later captured images to re-identify a person or object.

Abstract: A low cost, high specific energy and long cycle life lead acid battery includes polymer/metal current collectors. For intermediate electrodes, a current collector includes two polymer grids and a metal foil that is disposed between two grids, and for terminal electrodes, a current collector includes a polymer grid, a polymer sheet and a metal foil that is disposed between the polymer grid and sheet. The surfaces of the grids and metal foil are coated by different conductive and corrosion-resistant composites. The current collectors can be configured as monopolar or bipolar electrodes.

Abstract: Techniques for face verification are described. Local binary pattern (LBP) features and boosting classifiers are used to verify faces in images. A boosted multi-task learning algorithm is used for face verification in images. Finally, boosted face verification is used to verify faces in videos.

Abstract: The present invention provides an optical disc drive and computer. The optical disc drive comprises: a tray for laying a disc therein; a drive means connected to the tray; and a control circuit for connecting the drive means and a power supply of a computer connected to the optical disc drive, wherein the drive means establishes an electrical connection with the power supply via the control circuit. The control circuit comprises: a determination unit for determining whether a optical disc drive power-off condition is valid and acquiring a determination result; and a power supply control unit for transmitting a power-off instruction to a computer host when the determination result indicates that the optical disc drive power-off condition is valid. The power-off instruction is configured for instructing the computer to control the power supply to stop supplying power to the control circuit and the drive means.

Abstract: A device and method for processing an image to create appearance and shape labeled images of a person or object captured within the image. The appearance and shape labeled images are unique properties of the person or object and can be used to re-identify the person or object in subsequent images. The appearance labeled image is an aggregate of pre-stored appearance labels that are assigned to image segments of the image based on calculated appearance attributes of each image segment. The shape labeled image is an aggregate of pre-stored shape labels that are assigned to image segments of the image based on calculated shape attributes of each image segment. An identifying descriptor of the person or object can be computed based on both the appearance labeled image and the shape labeled image. The descriptor can be compared with other descriptors of later captured images to re-identify a person or object.

Abstract: A device and method for efficient computation of statistical information, such as a mean, co-variance, or histogram of the image pixels, over discrete image regions. The computation employs integral computations to determine the statistical information over image regions of arbitrary shape, including irregular polygonal shaped regions. The integral computations are simplified by categorizing corner points of boundaries of image regions. The computation can be applied to calculate descriptors or signatures of persons or objects within an image. The computation also has a low computational cost enabling fast calculation of image statistics.

Abstract: A method and system for verifying the availability of a back-up virtual private network IP security (IPSec) tunnel between two network elements by originating a plurality of connection tests between the network elements. The first network element transmits a backup tunnel verification test message to the second network element over the back-up secure tunnel upon receipt of a backup tunnel verification test command. The back-up secure tunnel includes two unidirectional tunnels. The second network element receives the back-up tunnel verification test message over the first back-up unidirectional secure tunnel and transmits a response back to the first network element over the second back-up unidirectional secure tunnel.

Abstract: A method and system for determining the connectivity of a virtual private network IP security (IPSec) tunnel between two network elements by originating a plurality of connection tests between the network elements. The first network element transmits a connectivity test message to the second network element over the secure tunnel upon receipt of an initiate connectivity test command. The secure tunnel includes two unidirectional tunnels. The second network element receives the connectivity test message over the first unidirectional secure tunnel and transmits a response back to the first network element over the second unidirectional secure tunnel. The number of successful responses received from the second network element are accumulated and the results are reported back to the source of the connectivity test command.

Abstract: A method and system for monitoring the status of an active secure tunnel between a pair of network elements in a communications network. The first network element originates and transmits an Internet Protocol Security (IPSec) test message to a second network element using a first unidirectional secure tunnel in response to the receipt of an active tunnel monitor command. The second network element receives the IPSec test message and transmits a response back to the first network element using a second unidirectional secure tunnel. The number of times that second network element failed to return a response to an IPSec test message is accumulated during a predetermined time interval and then compared with a threshold value to determine if the active secure tunnel has become disabled.