Abstract: Systems and methods for characterizing an obscurant and imaging a target are disclosed. In one embodiment, a method of imaging a target includes characterizing at least one obscurant present in an environment, and determining, based on the at least one characterized obscurant, one or more of the following: one or more wavelengths corresponding to the at least one obscurant, a polarization state corresponding to the at least one obscurant, and a sensor exposure time corresponding to the at least one obscurant. The method further includes adjusting one or more parameters of an imagining system based at least in part on a characterization of the at least one obscurant.

Abstract: Systems and methods for characterizing an obscurant and imaging a target are disclosed. In one embodiment, a method of imaging a target includes characterizing at least one obscurant present in an environment, and determining, based on the at least one characterized obscurant, one or more of the following: one or more wavelengths corresponding to the at least one obscurant, a polarization state corresponding to the at least one obscurant, and a sensor exposure time corresponding to the at least one obscurant. The method further includes adjusting one or more parameters of an imagining system based at least in part on a characterization of the at least one obscurant.

Abstract: Systems and methods for characterizing an obscurant and imaging a target are disclosed. In one embodiment, a method of imaging a target includes characterizing at least one obscurant present in an environment, and determining, based on the at least one characterized obscurant, one or more of the following: one or more wavelengths corresponding to the at least one obscurant, a polarization state corresponding to the at least one obscurant, and a sensor exposure time corresponding to the at least one obscurant. The method further includes adjusting one or more parameters of an imagining system based at least in part on a characterization of the at least one obscurant.

Abstract: Systems and methods for characterizing an obscurant and imaging a target are disclosed. In one embodiment, a method of imaging a target includes characterizing at least one obscurant present in an environment, and determining, based on the at least one characterized obscurant, one or more of the following: one or more wavelengths corresponding to the at least one obscurant, a polarization state corresponding to the at least one obscurant, and a sensor exposure time corresponding to the at least one obscurant. The method further includes adjusting one or more parameters of an imagining system based at least in part on a characterization of the at least one obscurant.

Abstract: In a telemedicine application there is live sharing of a video stream of medical images from a first site to a second site as well as a two-way conferencing capability. Live streaming of medical images in a live interactive session imposes many limitations on the video streaming process not found in conventional video conferencing. The network conditions are heterogeneous and low latency is required to support: 1) live streaming of medical images to a remote site and 2) supporting two-way conferencing in which a doctor or clinician at the remote site can provide real-time analysis or guidance on how to adjust a location of an imaging device. A suite of video enhancements is disclosed to improve the capability to sustain live video streaming of medical images in a telemedicine environment including a two-way conference between doctors or clinicians.

Abstract: In a telemedicine application there is live sharing of a video stream of medical images from a first site to a second site as well as a two-way conferencing capability. Live streaming of medical images in a live interactive session imposes many limitations on the video streaming process not found in conventional video conferencing. The network conditions are heterogeneous and low latency is required to support: 1) live streaming of medical images to a remote site and 2) supporting two-way conferencing in which a doctor or clinician at the remote site can provide real-time analysis or guidance on how to adjust a location of an imaging device. A suite of video enhancements is disclosed to improve the capability to sustain live video streaming of medical images in a telemedicine environment including a two-way conference between doctors or clinicians.

Abstract: A video stream of live medical images is generated at a local site having a medical image scanner. A live video stream is transmitted to at least one remote site via a network, which may include wired or wireless Internet connections. Network conditions are monitored during a network session and predictions are made on a predicted bit rate for transmission. The compression parameters for the live video stream are selected based on the predicted bit rate.

Abstract: Techniques to improve resolution in an ultrasound system are disclosed. An exemplary apparatus is a portable ultrasound probe having transducer elements and supporting electronics within the probe. The beam is shaped to split the resolution to sub-pixel accuracy. Super resolution sample technique based on interpolation can be used to further increase resolution. In one embodiment the ultrasound system supports ½ crystal physical resolution and ¼ crystal digital resolution.

Abstract: Techniques to improve resolution in an ultrasound system are disclosed. An exemplary apparatus is a portable ultrasound probe having transducer elements and supporting electronics within the probe. The beam is shaped to split the resolution to sub-pixel accuracy. Super resolution sample technique based on interpolation can be used to further increase resolution. In one embodiment the ultrasound system supports ½ crystal physical resolution and ¼ crystal digital resolution.

Abstract: A variety of methods and arrangements for sharing medical data are described. In one aspect, one or more data streams are received from one or more medical imaging/sensing or other types of devices. Frames are obtained from the streams. In some embodiments, particular frames and/or parts of frames are selectively encrypted. The frames are transmitted to a remote device, where they are rendered and/or displayed at the remote device. In various embodiments, the frames of different streams are synchronized.

Abstract: A video stream of live medical images is generated at a local site having a medical image scanner. A live video stream is transmitted to at least one remote site via a network, which may include wired or wireless Internet connections. Network conditions are monitored during a network session and predictions are made on a predicted bit rate for transmission. The compression parameters for the live video stream are selected based on the predicted bit rate.

Abstract: An ultrasound imaging system includes features to reduce speckle and time gain compression noise. A handheld ultrasound system may include beam forming electronics and digital waveform generators to generate the transmitted pulses with fine grained apodization to improve coherence and reduce speckle. Speckle filtering may be included in the ultrasound system. Features to reduce quantization noise and improve the time gain compression response may be provided.

Abstract: Techniques to improve resolution in an ultrasound system are disclosed. An exemplary apparatus is a portable ultrasound probe having transducer elements and supporting electronics within the probe. The beam is shaped to split the resolution to sub-pixel accuracy. Super resolution sample technique based on interpolation can be used to further increase resolution. In one embodiment the ultrasound system supports ½ crystal physical resolution and ¼ crystal digital resolution.

Abstract: A variety of methods and arrangements for sharing medical data are described. In one aspect, one or more data streams are received from one or more medical imaging/sensing or other types of devices. Frames are obtained from the streams. In some embodiments, particular frames and/or parts of frames are selectively encrypted. The frames are transmitted to a remote device, where they are rendered and/or displayed at the remote device. In various embodiments, the frames of different streams are synchronized.

Abstract: Techniques to improve resolution in an ultrasound system are disclosed. An exemplary apparatus is a portable ultrasound probe having transducer elements and supporting electronics within the probe. The beam is shaped to split the resolution to sub-pixel accuracy. Super resolution sample technique based on interpolation can be used to further increase resolution. In one embodiment the ultrasound system supports ½ crystal physical resolution and ¼ crystal digital resolution.

Abstract: An ultrasound imaging system includes features to reduce speckle and time gain compression noise. A handheld ultrasound system may include beam forming electronics and digital waveform generators to generate the transmitted pulses with fine grained apodization to improve coherence and reduce speckle. Speckle filtering may be included in the ultrasound system. Features to reduce quantization noise and improve the time gain compression response may be provided.

Abstract: A video stream of live medical images is generated at a local site having a medical image scanner. A live video stream is transmitted to at least one remote site via a network, which may include wired or wireless Internet connections. Network conditions are monitored during a network session and predictions are made on a predicted bit rate for transmission. The compression parameters for the live video stream are selected based on the predicted bit rate.

Abstract: A variety of methods and arrangements for sharing medical data are described. In one aspect, one or more data streams are received from one or more medical imaging/sensing or other types of devices. Frames are obtained from the streams. In some embodiments, particular frames and/or parts of frames are selectively encrypted. The frames are transmitted to a remote device, where they are rendered and/or displayed at the remote device. In various embodiments, the frames of different streams are synchronized.

Abstract: A method for determining a peak value of a histogram or a sequence of sampled data is disclosed. The method may include fitting a curve to the sequence of data, the curve being modeled based on an orthonormal expansion; obtaining a differential curve, the differential curve describing changes in slope of the curve fitted to the sequence of data; finding at least one root for the differential curve; for each of the at least one root for the differential curve, calculating a corresponding value on the curve fitted to the sequence of data; and determining the peak value of the sequence of data based on a maximum value among the corresponding value calculated for each of the at least one root.