Abstract: Disclosed are techniques for adaptive interpolation filtering of luminance and chrominance samples in the context of motion compensation in video encoding or decoding. A two-dimensional interpolation filter of n×m coefficients may be separable, i.e., it may be separated into two one-dimensional filters with m and n coefficients, respectively. The bitstream may include, per video unit and sub-sample position, information indicating whether to use a newly-generated, a cached, or a default filter that may be a separable two-dimensional filter. The information may be structured in a way that takes advantage of the two-dimensional filter being separable. When a newly-generated filter is signalled, the bitstream may contain information pertaining to the characteristics of the newly-generated filter, such as its coefficients. A decoder may fetch this information from the bitstream to create the filters which are applied to samples of the video unit. An encoder may create a bitstream as described.

Abstract: A method and apparatus for three-factor authentication using a short wireless device. The short wireless device stores a digital key and sends the digital key wirelessly to a third party application or device. The short wireless device can authenticate the user voice or movements in 2 dimensional or 3 dimensional space.

Abstract: Image tracking as described herein can include: segmenting a first image into regions; determining an overlap of intensity distributions in the regions of the first image; and segmenting a second image into regions such that an overlap of intensity distributions in the regions of the second image is substantially similar to the overlap of intensity distributions in the regions of the first image. In certain embodiments, images can depict a heart at different points in time and the tracked regions can be the left ventricle cavity and the myocardium. In such embodiments, segmenting the second image can include generating first and second curves that track the endocardium and epicardium boundaries, and the curves can be generated by minimizing functions containing a coefficient based on the determined overlap of intensity distributions in the regions of the first image.

Abstract: A method for communication and for displaying an interactive avatar or hologram corresponding to a remote party.

Abstract: A method and apparatus for secure authentication of Near Field Communication transactions based on proximity to a mobile key device.

Abstract: An emergency detection and notification system containing a short wireless transceiver collects sensor information from onboard sensors and or remote sensors and detects conditions that require attention. Upon detection of an exception, the emergency detection and notification system issues an audible request, and awaits a confirmation from the user. If a confirmation is not received, the emergency detection and notification system instructs a remote terminal or a VOIP service to dial a phone number, to issue messages, and to issue vocal signals corresponding to sensor information.

Abstract: A method and apparatus for three-factor authentication uses a short wireless device to authenticate access to a computer or device. The computer or device issues a challenge question to the user, for example, requesting the user to say a phrase or write symbols. The user biometric information is captured and authenticated using the short wireless device.

Abstract: A method and apparatus for three-factor authentication using a short wireless device. The short wireless device stores a digital key and sends the digital key wirelessly to a third party application or device. The short wireless device can authenticate the user voice or movements in 2 dimensional or 3 dimensional space.

Abstract: A method and apparatus for secure authentication of Near Field Communication transactions based on proximity to a mobile key device.

Abstract: An emergency detection and notification system containing a short wireless transceiver collects sensor information from onboard sensors and or remote sensors and detects conditions that require attention. Upon detection of an exception, the emergency detection and notification system issues an audible request, and awaits a confirmation from the user. If a confirmation is not received, the emergency detection and notification system instructs a remote terminal or a VOIP service to dial a phone number, to issue messages, and to issue vocal signals corresponding to sensor information.

Abstract: A method and apparatus for intelligent authentication based on proximity and using a short wireless device. The method checks if the user captured a PIN code recently and if no signal drop was detected since the last PIN capture. It obtains user data from a unitary short wireless device and authenticates it. If the user PIN was not captured recently, or if a signal drop was recently detected, the user is asked to enter a PIN code.

Abstract: A method and apparatus for wireless authentication, secure automatic access to application and to systems and for providing an alarm to users upon detecting that a monitored device is not within a desired proximity using a BLUETOOTH apparatus are described.

Abstract: A method and apparatus for wireless authentication, secure automatic access to application and to systems and for providing an alarm to users upon detecting that a monitored device is not within a desired proximity using a BLUETOOTH apparatus are described.

Abstract: A portable proximity alarm apparatus comprising a Bluetooth system and an alarm monitors the presence of a portable electronic device equipped with a compatible transceiver within range and alarms when that device leaves its range. On detecting disconnection, the proximity alarm automatically tries to reconnect. A portable proximity alarm apparatus with an optional voice mode allows to additionally use the unit as a headset when an earpiece is folded. A portable proximity alarm apparatus with relay functionality allows using a Bluetooth headset and proximity alarm functions unobtrusively on most mobile phones.

Abstract: Example methods, apparatus and articles of manufacture to process cardiac images to detect heart motion abnormalities are disclosed. A disclosed example method includes adapting a state of a state-space model based on a plurality of cardiac images to characterize motion of a heart, computing an information-theoretic metric from the state of the state-space model, and comparing the information-theoretic metric to a threshold to determine whether the motion of the heart is abnormal.

Abstract: Example methods, apparatus and articles of manufacture to track endocardial motion are disclosed. A disclosed example method includes segmenting a plurality of cardiac images of a left ventricle to form respective ones of a plurality of segmented images, updating a plurality of models based on the plurality of segmented images to form respective ones of a plurality of motion estimates for the left ventricle, computing a plurality of probabilities for respective ones of the plurality of models, and computing a weighted sum of the plurality of motion estimates based on the plurality of probabilities, the weighted sum representing a predicted motion of the left ventricle.

Abstract: Image tracking as described herein can include: segmenting a first image into regions; determining an overlap of intensity distributions in the regions of the first image, and segmenting a second image into regions such that an overlap of intensity distributions in the regions of the second image is substantially similar to the overlap of intensity distributions in the regions of the first image. In certain embodiments, images can depict a heart at different points in time and the tracked regions can be the left ventricle cavity and the myocardium. In such embodiments, segmenting the second image can include generating first and second curves that track the endocardium and epicardium boundaries, and the curves can be generated by minimizing functions containing a coefficient based on the determined overlap of intensity distributions in the regions of the first image.

Abstract: A loss prevention system containing a Bluetooth transceiver and a motion detection system monitors the presence of a portable electronic device such as a cell phone in the vicinity and alerts when that device leaves its vicinity. The system transceiver is activated upon detecting a movement and turned off after a check is done in order to conserve battery.

Abstract: A portable proximity alarm apparatus comprising a Bluetooth system and an alarm monitors the presence of a portable electronic device equipped with a compatible transceiver within range and alarms when that device leaves its range. On detecting disconnection, the proximity alarm automatically tries to reconnect. A portable proximity alarm apparatus with an optional voice mode allows to additionally use the unit as a headset when an earpiece is folded. A portable proximity alarm apparatus with relay functionality allows using a Bluetooth headset and proximity alarm functions unobtrusively on most mobile phones.

Abstract: A portable proximity alarm apparatus comprising a Bluetooth system and an alarm monitors the presence of a portable electronic device equipped with a compatible transceiver within range and alarms when that device leaves its range. On detecting disconnection, the proximity alarm automatically tries to reconnect. A portable proximity alarm apparatus with an optional voice mode allows for listening to a monitored device and/or to send voice to a monitored device. A proximity alarm device particularly suitable for monitoring persons and animals comprises a base device having a Bluetooth transceiver that can pair with a monitored device having a Bluetooth transceiver. The base device has a lower frequency receiver and the monitored device has a lower frequency transmitter, optionally the base has a lower frequency transmitter and the monitored device has a lower frequency receiver. The lower frequency is less than 1 GHz and preferably 433 MHz.