1410 results about "Single pixel" patented technology

An identification device having a piezoelectric sensor array is used to obtain biometric data. Multiplexers are switched to control the sensor. The device has several operating modes for obtaining a variety of biometric data, including an impedance detection mode, a voltage detection mode, an imaging mode, and a Doppler-shift detection mode. The presence of a fingerprint on the sensor can be used to turn-on the device. The device is capable of capturing a fingerprint, forming a three-dimensional map of a finger bone, and / or determining the direction and speed of arteriole and / or capillary blood flow in a finger. A single pixel or a group of pixels can be detected and readout to a memory. The device can be used as an electronic signature device. The device can operate as part of a personal area network, using a public service layer according to the invention.

Emissive quantum photonic imagers comprised of a spatial array of digitally addressable multicolor pixels. Each pixel is a vertical stack of multiple semiconductor laser diodes, each of which can generate laser light of a different color. Within each multicolor pixel, the light generated from the stack of diodes is emitted perpendicular to the plane of the imager device via a plurality of vertical waveguides that are coupled to the optical confinement regions of each of the multiple laser diodes comprising the imager device. Each of the laser diodes comprising a single pixel is individually addressable, enabling each pixel to simultaneously emit any combination of the colors associated with the laser diodes at any required on / off duty cycle for each color. Each individual multicolor pixel can simultaneously emit the required colors and brightness values by controlling the on / off duty cycles of their respective laser diodes.

A method and system for gathering enriched web server activity data in a global communications network in which requested information files are cached at a plurality of network devices. With the prevalence of web caching on the Internet, the origin web servers do not serve the majority of requests for web site content. A single pixel clear Graphics Image Format (GIF) request is added to the HyperText Markup Language (HTML) source file for a web page. Appended to the GIF request is a Common Gateway Interface (CGI) string of data that contains enhanced web activity data information, including the number of images (“hits”) that have to be retrieved by a client browser to build the web page, and the referring identifier that resulted in access to the web page. The single pixel clear GIF request is not cacheable and results in the request being transmitted to the origin web server when the client browser interprets the HTML file. The enriched data is stored in log files at the origin web server to accumulate an accurate number of hits on the web page.

A graphical user interface uses scroll bars having a single pixel width and a much larger scroll button or thumb. Both the scroll bar and the scroll button may be controlled to have selective degrees of transparency so that they underlying image information may be seen under certain conditions. In one application, the scroll bar itself is invisible until a cursor approaches to within a specified proximity. The graphical user interface permit scroll bars to be displayed which follow an arbitrary path in either two or three dimensions.

A system and method process non-linear image data, still or video, from a digital imager. Noise generated by analog-to-digital converters is filtered from a pixel of digital image data. Moreover, the effects of single pixel defects in the imager are eliminated by clamping a predetermined pixel of image data within the window when the value of the predetermined pixel is greater than a maximum value of the image data of neighboring pixels or less than a minimum value of the image data of neighboring pixels. Ripples in image data are reduced by eliminating the effects of single pixel defects before filtering for crosstalk caused by electrical crosstalk between sensor elements in an imager. Dark current is removed from image data generated by an imager by subtracting a fraction of a determined dark current value from all image data generated by the imager to compensate for nonlinearities in dark current across the imager. The image data is white balanced by creating a set of scalar color adjustments from determined average color values and constraining the set of scalar adjustments to plausible lighting conditions to prevent overcompensation on images having large regions of similar hue. Lastly, utilization of a fixed set of intensity levels is optimized by remapping and restreching the image data to create new luma values for each pixel.

A method and system for converting low-dose tomosynthesis projection images or reconstructed slices images with noise into higher quality, less noise, higher-dose-like tomosynthesis reconstructed slices, using of a trainable nonlinear regression (TNR) model with a patch-input-pixel-output scheme called a pixel-based TNR (PTNR). An image patch is extracted from an input raw projection views (images) of a breast acquired at a reduced x-ray radiation dose (lower-dose), and pixel values in the patch are entered into the PTNR as input. The output of the PTNR is a single pixel that corresponds to a center pixel of the input image patch. The PTNR is trained with matched pairs of raw projection views (images together with corresponding desired x-ray radiation dose raw projection views (images) (higher-dose). Through the training, the PTNR learns to convert low-dose raw projection images to high-dose-like raw projection images. Once trained, the trained PTNR does not require the higher-dose raw projection images anymore. When a new reduced x-ray radiation dose (low dose) raw projection images is entered, the trained PTNR outputs a pixel value similar to its desired pixel value, in other words, it outputs high-dose-like raw projection images where noise and artifacts due to low radiation dose are substantially reduced, i.e., a higher image quality. Then, from the “high-dose-like” projection views (images), “high-dose-like” 3D tomosynthesis slices are reconstructed by using a tomosynthesis reconstruction algorithm. With the “virtual high-dose” tomosynthesis reconstruction slices, the detectability of lesions and clinically important findings such as masses and microcalcifications can be improved.

An imaging device is disclosed which may include at least one single pixel imaging sensor configured to sense image data for a single pixel along a line of sight. The imaging device may also include at least one reorientable mirror, of which each reorientable mirror is exclusively optically coupled to one or more of said at least one single pixel imaging sensor for deflecting the line of sight of that single pixel imaging sensor. The imaging device may further include a controller for synchronously reorienting each of said at least one reorientable mirror to scan the line of sight across at least a sector of a scene. The imaging device may also include a readout circuit for reading out acquired image data from each of said at least one single pixel imaging sensor. The imaging device may be configured to sample at least two independent dimensions of a four dimensional light field. A plenoptic imaging device and a plenoptic projector device are also disclosed.

A local priority-based scanning scheme that focuses scanning to areas of a display panel whose measured characteristics are under continuous change (e.g., aging or relaxation). The algorithm identifies areas or regions needing compensation, using a current measurement from a single pixel in an area as a candidate to determine whether the rest of the region needs further compensation. The algorithm thus detects newly changed areas quickly, focusing time-consuming measurements on those areas that need high attention. Optionally, neighboring pixels sharing the same state (e.g., aging or overcompensated) as the measured pixel can be adjusted automatically given the likelihood that the neighboring pixels will also require compensation if the measured pixel needs compensation.

A display device prevents luminance unevenness that occurs in the case of inversion driving being performed, and performs high quality image display, while selectively scanning two lines of picture elements constituting a single pixel using a single gate wiring, as in the case of multi-primary color image display. The display device includes a display element including a pixel constituted by a plurality of picture elements disposed in two lines in a longitudinal direction and two or more columns in a lateral direction, a gate wiring common to the plurality of picture elements, and a source wiring that is arranged perpendicular or substantially perpendicular to the gate wiring and to perform image display using inversion driving in which an image display signal is provided to the picture elements connected to the gate wiring which is sequentially selected, at a different polarity than a polarity of an immediately previous frame, and an array of the picture elements in the pixel is determined so as to compensate for a change in luminance following the change in the effective value relative to the image display signal of the picture elements belonging to one line.

A still image capturing device includes an image sensor comprising a plurality of pixel elements. An electronically actuatable shutter device includes a plurality of individually addressable and actuatable shutter elements. A shutter element substantially corresponds to one or more pixel elements. A memory stores an exposure threshold and one or more exposure patterns. A processor controls the plurality of shutter elements according to the exposure threshold or according to an exposure pattern.

A dynamic SPECT camera is provided, comprising, a plurality of single-pixel detectors, a timing mechanism, in communication with each single-pixel detector, configured for enabling time-binning of the radioactive emissions impinging upon each single-pixel detector to time periods not greater than substantially 30 seconds, and a position-tracker, configured for providing information on the position and orientation of each detecting unit, with respect to the overall structure, substantially at all times, during the individual motion, the dynamic SPECT camera being configured for acquiring a tomographic reconstruction image of a region of interest of about 15×15×15 cubic centimeters, during an acquisition time of 30 seconds, at a spatial resolution of at least 10×10×10 cubic millimeter. The dynamic camera is configured for very short damping time, and may further acquire images in a stationary mode, with no motion. It is further configured for time binning at dynamically varying time-bin lengths, dynamically determining a spectral energy bin for each detecting unit, and employing an anatomic construction of voxels in the imaging and reconstruction.

A dynamic SPECT camera is provided, comprising, a plurality of single-pixel detectors, a timing mechanism, in communication with each single-pixel detector, configured for enabling time-binning of the radioactive emissions impinging upon each single-pixel detector to time periods not greater than substantially 30 seconds, and a position-tracker, configured for providing information on the position and orientation of each detecting unit, with respect to the overall structure, substantially at all times, during the individual motion, the dynamic SPECT camera being configured for acquiring a tomographic reconstruction image of a region of interest of about 15×15×15 cubic centimeters, during an acquisition time of 30 seconds, at a spatial resolution of at least 10×10×10 cubic millimeter. The dynamic camera is configured for very short damping time, and may further acquire images in a stationary mode, with no motion. It is further configured for time binning at dynamically varying time-bin lengths, dynamically determining a spectral energy bin for each detecting unit, and employing an anatomic construction of voxels in the imaging and reconstruction.

The invention provides a character picture verification code identifying method based on identification feedback. The character picture verification code identifying method is characterized by comprising the following steps of: firstly, converting an original colorful image into a gray level image and carrying out binaryzation treatment to obtain binaryzation image data; then, repairing a binaryzation image, removing image edge burrs and filling a central blank; finishing the connection of broken strokes to obtain a repaired image; removing a background and an interference point or line of the repaired image to obtain a noise-free image; thinning the noise-free image to obtain a thinned image with a single pixel; then, cutting the thinned image to obtain a single-character image which only contains a single character; and finally, carrying out normalization on the single-character image and identifying the character. According to the character picture verification code identifying method based on the identification feedback, a corresponding algorithm is designed to process a character picture identification code including various types of noises and having the phenomena that the character is stuck, inclined, rotated, deformed and the like, so as to finish high-efficiency and high-precision identification. The character picture verification code identifying method based on the identification feedback can be applied to verification code identification in an automatic program.

A computer graphics system that utilizes a super-sampled sample buffer and a sample-to-pixel calculation unit for refreshing the display. The graphics system may have a graphics processor, a super-sampled sample buffer, and a sample-to-pixel calculation unit. The graphics processor renders samples into the sample buffer at computed positions or locations in the sample buffer. The graphics system may utilize a window ID that specifies attributes of pixels on a per object basis. The window ID may specify one or more of a sample mode, filter type, color attributes, or source attributes. The sample mode may include single sample per pixel mode and multiple samples per pixel mode. In implementing a single sample per pixel mode, the graphics system may be further operable to generate a single sample per pixel for certain windows of the screen in order to, for example, provide backwards compatibility with legacy systems with no multi-sampling support. The graphics system may generate samples that have the same value within the region of a single pixel, or the graphics system may utilize a very narrow filter that only selects the center sample in the averaging process.

In a display device using, for example, an organic EL element as a light emissive element, a single pixel is formed of subpixels of four colors, R, G, B, and W, arranged in two rows and two columns. Each pixel is substantially quadrangular in shape, and at least one of the subpixels in the pixel has an area different from the areas of the other subpixels. The subpixels of the colors horizontally adjoining in the same row have the same height, and the subpixels of the colors vertically adjoining in the same column have the same width. Even when the area ratio of the subpixels is varied by changing the position of the intersecting point of divisional lines dividing a pixel into four subpixels, the design can easily be modified by satisfying the above relationship, and a display device with a high luminance and a long life can easily be obtained with any area ratio.

A device, system, and method are directed towards managing and tracking of cross-domain user activities through use of a beacon. As a user of a client device requests content from different domain services managed by a common entity, they may receive a Uniform Resource Locator (URL) to a beacon in at least one of the different domains. In one embodiment, the beacon is a single pixel image. The client device may also receive a Match-ID. A beacon server in one of the other domains may receive the request for the beacon, and store in a domain log the Match-ID, and other information about the client device, which domain service provided the URL, and / or other related user activities. The different domain logs may then be employed for use in searching for matching Match-IDs, joining common user or client device activities, and for tracking other cross-domain user activities.

A dynamic SPECT camera is provided, comprising, a plurality of single-pixel detectors, a timing mechanism, in communication with each single-pixel detector, configured for enabling time-binning of the radioactive emissions impinging upon each single-pixel detector to time periods not greater than substantially 30 seconds, and a position-tracker, configured for providing information on the position and orientation of each detecting unit, with respect to the overall structure, substantially at all times, during the individual motion, the dynamic SPECT camera being configured for acquiring a tomographic reconstruction image of a region of interest of about 15×15×15 cubic centimeters, during an acquisition time of 30 seconds, at a spatial resolution of at least 10×10×10 cubic millimeter. The dynamic camera is configured for very short damping time, and may further acquire images in a stationary mode, with no motion. It is further configured for time binning at dynamically varying time-bin lengths, dynamically determining a spectral energy bin for each detecting unit, and employing an anatomic construction of voxels in the imaging and reconstruction.

A pattern inspection method capable of providing an improved inspection reliability includes the following steps. A pattern classification is set every pixel-value range of a reference-image data obtained from a reference pattern. Each of the pattern classifications has reference-data preparing parameters. With respect to each pixel of the reference-image data, pixel values of a pixel window which is composed of the pixel as a center pixel and neighbor pixels around the center pixel are checked to prepare a reference data. When all of the pixels in the pixel window are within a single pixel-value range, the center pixel is decided as a pattern uniform portion, and the reference data is prepared according to the parameters of a corresponding pattern classification. When all of the pixels in the pixel window are not within the single pixel-value range, the center pixel is decided as a pattern step portion, and internal and external pattern classifications are determined, so that the reference data is prepared according to the parameters of at least one of the internal and external pattern classifications. An inspection-image data of a pattern to be inspected is compared with the reference data to detect a defect of the pattern.

Various types of light source, including those in use in pixel based display devices, may be used for light-simulated bar codes. Liquid crystal displays (“LCD”) which utilize a backlight for screen brightness may, for example, be very effective for producing light-simulated bar codes because the entire backlight may be modulated to provide the desired light / dark sequence. Even displays which have no backlight, for example but not limited to OLED and LED displays, may be used for light-simulated bar codes. While the entire display may be used, single pixels or pixel groups of the displays of such displays may be used.

An electrophoretic display device includes a pair of substrates arranged with a predetermined gap maintained therebetween, a dispersing fluid disposed between the pair of substrates, a plurality of charged particles mixed in the dispersing fluid, at least a pair of display electrodes arranged on one of the substrates and defining a pixel, and a guard electrode arranged in a border between adjacent pixels. The guard electrode limits the movement of the charged particles to within a single pixel when the guard electrode is biased at a potential higher than (lower than) each of the display electrodes of the two adjacent pixels with the border arranged therebetween if the particles are positively (negatively) charged.

An identification device having a piezoelectric sensor array is used to obtain biometric data. In one embodiment, a piezo ceramic sensory array is used to obtain biometric data. In another embodiment, a multi-layer sensor array structure having a PVDF layer in between two conductor grids orthogonal to one another is used to obtain biometric data. Urethane can be added to one side of the senor array where a finger is placed. A foam substrate can be used as a support. Multiplexers are switched to control the sensor. The device has several operating modes for obtaining a variety of biometric data, including an impedance detection mode, a voltage detection mode, an imaging mode, and a Doppler-shift detection mode. The presence of a fingerprint on the sensor can be used to turn-on the device. The device is capable of capturing a fingerprint, forming a three-dimensional map of a finger bone, and / or determining the direction and speed of arteriole and / or capillary blood flow in a finger. A single pixel or a group of pixels can be detected and readout to a memory. The device can be used as an electronic signature device. The device can operate as part of a personal area network, using a public service layer according to the invention.

A method includes sensing one or more pattern elements on a patterned contact lens on the eye of a person. Movement or direction of the person's eye is assessed based on the sensing of the one or more pattern elements. The pattern elements may be sensed using a single-pixel sensor. The pattern may include, for example, a pattern of elements having different colors.

A device, system, and method are directed towards managing and tracking of cross-domain user activities through use of a beacon. As a user of a client device requests content from different domain services managed by a common entity, they may receive a Uniform Resource Locator (URL) to a beacon in at least one of the different domains. In one embodiment, the beacon is a single pixel image. The client device may also receive a Match-ID. A beacon server in one of the other domains may receive the request for the beacon, and store in a domain log the Match-ID, and other information about the client device, which domain service provided the URL, and / or other related user activities. The different domain logs may then be employed for use in searching for matching Match-IDs, joining common user or client device activities, and for tracking other cross-domain user activities.

The invention provides a vehicle, a road route detection and a driving control method and device. The road route detection comprises the following steps that images containing the road surface captured by an imaging module are obtained; the probability of a single pixel belonging to the predetermined route category in multiple pixels included in the image is predicted separately, and a predicted probability map of the road route is obtained; and information of the target road route is determined based on the predicted probability map of the road route. According to the vehicle, the road routedetection and the driving control method and device, road signs are indentified by computer vision, so that the accuracy of automatic and / or auxiliary driving of the vehicle can be improved.

A multi-color IR imaging device includes optics that direct mid-wave infrared (MWIR) and long-wave infrared (LWIR) radiation onto a focal plane array having LWIR and MWIR detection layers. Pixel groups that include at least one first pixel and one second pixel are defined on the focal plane array, and a first filter and a second filter which form part of an inhomogeneous filter is placed over the respective first and second pixels in a checkerboard pattern, in close proximity to the detection layers. This allows MWIR radiation in M band, and LWIR radiation in an L1 band to pass therethrough and illuminate the first pixels, and M, L1, and a separate LWIR band designated L2 to pass therethrough and illuminate the second pixels. To simultaneously image both MWIR and LWIR, the focal plane array is placed at a predetermined distance from the optics so that the MWIR spot size covers a single pixel and the LWIR spot size is about the same area as the area of a group of two first pixels and two second pixels. Since all pixels receive the M band, half of the pixels in the group receive the L1 band, and the other half receives the L2 band, three bands can be generated. This allows simultaneous imaging of MWIR and two sub-bands of the LWIR from the same point in space.

A liquid crystal display has spacers for maintaining a liquid crystal layer and a cell gap between a substrate and an opposite substrate and also has regions either within a single pixel or over two or more pixels. The spacers are of columnar shape elongated from the substrate to the opposite substrate or the other way round, and the columnar spacers are provided in regions in which the liquid crystal layer is thinnest among those regions in which the liquid crystal layer varies in thickness. The structure makes the liquid crystal display having two or more different cell gaps to stably maintain those cell gaps and produces good quality displays.

An imager having a switching circuit that couples pixel columns to different sample and hold circuits to reduce the noticeability of column-wise fixed pattern noise. A controller randomly couples a pixel column to a sample and hold circuit, therefore fixed pattern noise emanating from a particular sample and hold circuit is not always associated with a single pixel column. Therefore the visual perception of fixed pattern noise associated with a particular sample and hold circuit is reduced.