Abstract: Diagnostic and therapeutic medical devices and methods that include an elongate shaft, a balloon, a plurality of electrodes carried by the balloon, and electronics to electrically connect the electrodes to a proximal end of the shaft. The devices can include a visualization system within the balloon.

Abstract: Diagnostic and therapeutic medical devices and methods that include an elongate shaft, a balloon, a plurality of electrodes carried by the balloon, and electronics to electrically connect the electrodes to a proximal end of the shaft. The devices can include a visualization system within the balloon.

Abstract: A system and method for stabilization of an image capture device are disclosed. Also disclosed are a system and method for autofocus of an image capture device.

Abstract: A system and method for stabilization of an image capture device are disclosed. Also disclosed are a system and method for autofocus of an image capture device.

Abstract: A system and method for stabilization of an image capture device are disclosed. Also disclosed are a system and method for autofocus of an image capture device.

Abstract: A method of processing a mosaic digital image includes simultaneously performing edge-sensitive denoising and color interpolation on a first color plane of the digital image. The interpolation fills in missing pixel information in the first color plane.

Abstract: A volumetric fluid dispensing device can include a fluid reservoir having at least one flexible wall and a dispensing reservoir oriented above the fluid reservoir. The dispensing reservoir can have an overflow return fluidly connected to the fluid reservoir such that the dispensing reservoir holds a measured volume of fluid. A reservoir conduit can be fluidly connected to the fluid reservoir and the dispensing reservoir to allow excess fluid to return from the overflow to the fluid reservoir. A dispensing conduit can also be fluidly connected to the dispensing reservoir to allow fluid to exit the dispensing reservoir. A mechanical wall actuator can be operatively associated with the walls for controllably flexing at least a portion of the walls sufficient to force fluid from the fluid reservoir to the dispensing reservoir via the reservoir conduit.

Abstract: An integrated image sensor for acquiring and processing electrical signals representative of an object comprising a photosite array configured to convert light into the electrical signals, an A/D converter configured to convert the electrical signals into digital data, and logic integral with the image sensor configured to scale the digital data by a non-integer-scaling factor. A method for acquiring and processing image data with an integrated image sensor comprising the steps of capturing, via the image sensor, the image data representative of an image, scaling, via the image sensor, the image data by a non-integer value, and outputting from the integrated image sensor scaled image data.

Abstract: The present invention is directed to an integrated cartridge assembly for delivery of the biocompatible fluids to a subject, in which the device comprises an integrated cartridge including a fluid reservoir for housing the biocompatible fluid, a dispenser permanently and fluidically connected to the fluid reservoir, and configured for dispensing the biocompatible fluid to a manifold which is fluidically and removably connectable to the cartridge.

Abstract: Imaging devices, such as digital cameras, scanners, displays and projectors, and related processing methods that implement calibration and post-capture image processing that quickly and accurately corrects image quality resulting from lens and CCD imperfections using a minimum amount of computation and memory storage space.

Abstract: Various embodiments for transferring and/or decompressing data blocks are described. In an embodiment, a memory transfer engine transfers a first data block from a nonvolatile memory to a volatile memory. A processor may decompress the transferred first data block. Furthermore, the memory transfer engine may initiate a transfer of a second data block from the nonvolatile memory to the volatile memory prior to the processor completing the decompression of the transferred first data block.

Abstract: A method and apparatus for improving the quality of MPEG video are disclosed. In a preferred embodiment, a group of pictures (GOP) is obtained and decompressed, producing an initial decompressed GOP. This initial decompressed GOP is spatially shifted to at least two shift positions. At each shift position, MPEG compression and decompression are applied, producing a resulting decompressed GOP for each shift position. The resulting decompressed GOPs are shifted back to their initial position and combined, preferably by averaging, to form an improved GOP.

Abstract: The shutter of a digital imaging device may be calibrated by comparing a characteristic of two separate exposures obtained from a single field of the device's imaging sensor during a single exposure cycle. Calibrating the shutter in this manner facilitates the accuracy of even very short exposure times.

Abstract: A camera has a motion detector and a sensor with a plurality of pixels. Each pixel includes shift transistors to shift charge between pixels as a function of motion sensed by the motion detector.

Abstract: A digital imaging device having a CCD sensor array with one or more fields captures both short and long exposures of a particular field during the capture of a single image frame. The short-exposure image data and the long-exposure image data from the particular field may be correlated to estimate motion within the image frame.

Abstract: A digital imaging device having a CCD sensor array with at least one field captures both short and long exposures of a particular field during the capture of a single image frame, the short-exposure image data from the particular field being used to extend the dynamic range of clipped pixel data.

Abstract: In a method of digital image compression, the spatial frequency content of a digital image is characterized using a relatively sparse sampling of data blocks from the image, and a quantization table is constructed based on the characterization of the spatial frequency content.

Abstract: A system and method for determining movement of an image capture device is disclosed. Briefly described, one embodiment comprises a first dual-axis linear accelerometer residing in the image capture device that senses a first acceleration in a first direction and that senses a first orthogonal acceleration in an orthogonal direction, a second dual-axis linear accelerometer residing in the image capture device that senses a second acceleration in the first direction and that senses a second orthogonal acceleration in the orthogonal direction, a processor that receives information from the first dual-axis linear accelerometer and the second dual-axis linear accelerometer such that the movement of the image capture device is determined.

Abstract: A method comprises detecting edges in at least a region of a captured focus image, using adjacent pixels of the region to obtain first edge detection results and filtering the first edge detection results. The first filtering comprises comparing differences in pixel contrast in the first edge detection results with a first threshold value and removing the differences in pixel contrast that are less than the first threshold value from the first edge detection results. The method further comprises detecting edges in at least the region, using non-adjacent pixels of the region to obtain second edge detection results and filtering the second edge detection results. The second filtering comprising comparing differences in pixel contrast in the second edge detection results with a second threshold value and removing the differences in pixel contrast that are less than the second threshold value from the second edge detection results.

Abstract: A system and method for stabilization of an image capture device are disclosed. Also disclosed are a system and method for autofocus of an image capture device.