Abstract: Certain aspects of the present disclosure provide techniques for a domain name system (DNS) override for edge computing. Embodiments include receiving signaling indicating an address of a DNS server. Embodiments include receiving signaling indicating an address of an edge DNS server. Embodiments include intercepting a DNS request from an application. Embodiments include changing a destination address of the DNS request to the address of the edge DNS server. Embodiments include intercepting a DNS response from the edge DNS server that is sent in response to the DNS request. Embodiments include upon determining that the DNS response does not comprise a failure notification, changing a source address of the DNS response to the address of the DNS server.

Abstract: One embodiment discloses an image processing apparatus which generates an interpolation frame from consecutive first and second frames, including: a motion estimation section which assigns, to the interpolation frame, motion vectors from the first frame to the second frame; a first degree-of-difference calculation section which extracts calculates a first degree of difference in terms of pixel values; a second degree-of-difference calculation section which calculates a second degree of difference in terms of vectors; and an interpolation frame generation section which generates the interpolation frame by determining a motion vector that should be assigned to a pixel of attention on the basis of combined weights obtained by combining the first degrees of difference and the second degrees of difference, respectively.

Abstract: A system and method for enhancing the detail edges and transitions in an input video signal. This enhancement may be accomplished by enhancing small detail edges before up-scaling and enhancing large amplitude transitions after up-scaling. For example, detail edge enhancement (detail EE) may be used to enhance the fine details of an input video signal. An edge map may be used to prevent enhancing the large edges and accompanying mosquito noise with the detail enhancement. Noise may additionally be removed from the signal. After the fine details are enhanced, the signal may be up-scaled. Luminance transition improvement (LTI) or chrominance transition improvement (CTI) may be used to enhance the large transitions of the input video signal post scaler.

Abstract: Embodiments of imaging devices of the present disclosure automatically utilize sequential image captures in an image processing pipeline. In one embodiment, control processing circuitry initiates a sequential capture of a plurality of images by an image sensor; and image processing circuitry generates a composite image comprising at least portions of the images.

Abstract: Video processing arrangement including a host computer, a video asset coupled to the computer for generating video signals, and an interface for connecting the video asset to the computer to enable the display of the video signals on a monitor. The video asset includes primary elements such as a primary composite video module that produces different types of a primary video signal and outputs the primary video signal, and a secondary video source module that produces a secondary composite video signal and outputs the secondary composite video signal. The primary composite video module includes a memory component including a user-programmable sequence of bits representative of a video signal and user-programmable signal generators synchronized to the primary video signal output of the primary composite video module. The memory component includes four user specified pulse memories which each hold a series of arbitrary bit line patterns.

Abstract: A band processing circuit which generates image signals corresponding to different frequency bands from an image signal in which signals corresponding to different colors are arranged and which suppresses noise by synthesizing the image signals of the different frequency bands, a sampling circuit which generates image signal corresponding to the colors by sampling the image signal input from the band processing circuit in accordance with a predetermined arrangement, and a luminance/color generation circuit which generates a luminance signal in which aliasing is suppressed using an image signal output from the sampling circuit.

Abstract: A signal processing device (500a) subjects an input signal indicating an image to a process of sharpening the image and outputs a signal indicating the sharpened image, and includes: a two-dimensional filter (200) for removing, from the input signal, a high frequency component of frequency components in directions other than horizontal/vertical directions of the image indicated by the input signal, to generate an obliquely reduced signal; a sharpening process section (100A) for generating a sharpened signal (S101) by a nonlinear process section (102) performing a nonlinear process on a signal indicating pixels adjacently aligned in a horizontal direction of an image indicated by the obliquely reduced signal; and a sharpening process section (100B) for generating a sharpened signal (S102) by a nonlinear process section (102) performing a nonlinear process on a signal indicating pixels adjacently aligned in a vertical direction of an image indicated by the sharpened signal (S101).

Abstract: A system for edge enhancement includes an input unit to receive an input signal Yin, a vertical enhancement unit to perform a vertical enhancement of an edge of the input signal Yin to generate an output YEV, and a horizontal enhancement unit to perform a horizontal enhancement of the edge of the input signal Yin to generate an output YEH. The system also includes a local gradient analysis unit to generate a local gradient direction GradDir and a local gradient magnitude GradMag based at least partly upon the input signal Yin, and a mixer to generate an output Yout by mixing the output YEV with the output YEH using the local gradient direction GradDir. The system further includes an output unit to output the output Yout.

Abstract: A signal processing device (500a) subjects an input signal indicating an image to a process of sharpening the image and outputs a signal indicating the sharpened image, and includes: a two-dimensional filter (200) for removing, from the input signal, a high frequency component of frequency components in directions other than horizontal/vertical directions of the image indicated by the input signal, to generate an obliquely reduced signal; a sharpening process section (100A) for generating a sharpened signal (S101) by a nonlinear process section (102) performing a nonlinear process on a signal indicating pixels adjacently aligned in a horizontal direction of an image indicated by the obliquely reduced signal; and a sharpening process section (100B) for generating a sharpened signal (S102) by a nonlinear process section (102) performing a nonlinear process on a signal indicating pixels adjacently aligned in a vertical direction of an image indicated by the sharpened signal (S101).

Abstract: Embodiments of the present invention comprise methods and systems for identifying uniformly colored regions in a digital image.

Abstract: A system and method for enhancing the detail edges and transitions in an input video signal. This enhancement may be accomplished by enhancing small detail edges before up-scaling and enhancing large amplitude transitions after up-scaling. For example, detail edge enhancement (detail EE) may be used to enhance the fine details of an input video signal. An edge map may be used to prevent enhancing the large edges and accompanying mosquito noise with the detail enhancement. Noise may additionally be removed from the signal. After the fine details are enhanced, the signal may be up-scaled. Luminance transition improvement (LTI) or chrominance transition improvement (CTI) may be used to enhance the large transitions of the input video signal post scaler.

Abstract: In a de-ring system for reducing the overshooting and undershooting of a video signal after scaling on the horizontal and the vertical direction in a scaler, a region judgment device receives the video signal and detects the attributes of the region in the video signal. When the region in the video signal is an edge and flat area, the de-ring system adjusts the weighting coefficient to increase the low frequency components for reducing the overshooting and undershooting of the video signal. When the region in the video signal is neither an edge nor an edge and flat area, the de-ring system adjusts the weighting coefficient to increase the high frequency components for preserving the high frequency components of the video signal, so as to dramatically reduce the overshooting and undershooting of a video signal.

Abstract: According to one embodiment, a video processing apparatus includes an input module and a video processor. The input module is configured to input a video signal. The video processor is configured to apply sharpening processing to pixels in a horizontal direction and pixels in a vertical direction, which are included in the video signal, and to apply image blur correction to the pixels in the horizontal direction and the pixels in the vertical direction based on an imaging model function.

Abstract: A BD-ROM has recorded therein an AV Clip generated by multiplexing a video stream and a graphics stream. The graphics stream represents an interactive display to be overlayed with the video stream, and includes a sequence of three Button State groups. The interactive display includes a plurality of buttons, each of which changes from a normal state to a selected state, and from the selected state to an active state, according to a user operation. In the three Button State groups in the graphics stream, the first-order group (N-ODSs) is made of a plurality of pieces of graphics data, which represent normal states of the buttons, the second-order group (S-ODSs) is made of a plurality of pieces of graphics data, which represent selected states of the buttons, and the third-order group (A-ODSs) is made of a plurality of pieces of graphics data, which represent active states of the buttons.

Abstract: A method for processing video information may include calculating a polarity change count (PCC) for a plurality of pixel pairs selected from a plurality of pixels from different fields utilizing a plurality of difference polarity values associated with the plurality of pixel pairs. At least a portion of the plurality of pixels from different fields may be deinterlaced based on at least the calculated PCC. The plurality of difference polarity values may be calculated for the plurality of pixel pairs selected from the plurality of pixels from different fields. At least one difference in amplitude of at least one of the selected pixel pairs may be calculated for the calculating the plurality of difference polarity values. The plurality of pixels from different fields may comprise a plurality of adjacent pixels from a plurality of woven fields.

Abstract: An electro-optical device and a method for displaying an image are disclosed. A clear image with a clear profile can be displayed therein by processing input image data, for example input image data of TV broadcasting received by the device.

Abstract: An image processor arranged in operation to generate an interpolated video signal from a received video signal representative of an image. The image processor comprises an adaptable register store comprising a plurality of register elements and is coupled to a control processor which is operable to receive the video signal and to provide pixels of the received video signal, under control of the control processor to an interpolator, selected regester elements being connected to the interpolator to provide the pixels of the received video signal for interpolation, each of the register elements being arranged to store a pixel of the received video signal and each is connected to a plurality of other register elements and is configurable under control of the control processor to feed the pixel stored in the register element to one of the plurality of other register elements in accordance with a temporal reference and the interpolator being coupled to the adaptable register store.

Abstract: A method is provided for deriving an objective sharpness metric for objectively determining the level of image sharpness of many and unspecific images having different degrees of sharpness. The method for deriving the objective sharpness metric utilizes sub-band frequency information and false edge information for both an original video sequence and a sharpened sequence to be scored.

Abstract: A video signal is split into a first signal and a second signal. The first signal includes low amplitude/high frequency components of the video signal, which can be properly amplified by a video amplifier. The second signal includes high amplitude/high frequency components of the video signal, which cannot be properly amplified by the video amplifier. The first signal is combined with the video signal, amplified by the video amplifier, and used to modulate the intensity of an electron beam. The second signal is amplified by a scan velocity modulation amplifier and used to modulate the horizontal scan velocity of the electron beam.

Abstract: An electro-optical device and a method for displaying an image are disclosed. A clear image with a clear profile can be displayed therein by processing input image data, for example input image data of TV broadcasting received by the device.

Abstract: A contour emphasizing circuit in which VE detected by a vertical contour component detecting unit and HE detected by a horizontal contour component detecting unit are added by a first adder and then multiplied by a coefficient, and the product is added to an input video signal by a second adder to output an emphasized-contour video signal. The circuit contains a comparing/judging unit for comparing VE with HE and judging whether or not the absolute value of the difference between them is smaller than a present value S, and a coefficient change-over multiplier unit for changing the coefficient by which the sum (VE+HE) is multiplied over to K/2 or K according to the judging signal. For a pixel from which both HE and VE are detected, the coefficient change-over multiplier is changed from K or K/2 by a judgment signal of the comparing/judging unit to decrease the contour emphasizing component.

Abstract: A method for image enhancement for an interlaced display includes receiving a first group of pixels aligned about an axis, detecting a second group of pixels within the first group of pixels, each pixel of the second group of pixels having a luminous disparity between adjacent pixels less than a first threshold, determining whether each pixel within the second group of pixels is part of a line or edge, the determination including a comparison of luma or chroma disparities between neighboring pixels and filtering each pixel determined to be part of a line or edge.

Abstract: The image signal processing apparatus for prompter provides a screen easy to view from which horizontal flickering on an image in horizontal scroll is eliminated. In a unit for displaying image data of a manuscript with interlace scanning, and horizontally scrolling the displayed manuscript in various speeds, a timing signal generator circuit generates clock signals with half a cycle shift, and a control circuit reads and processes even fields with clock signals with half a cycle shift at a scroll speed of, for example, a screen/six seconds, and reads and processes the last one of three continuous fields with the clock signals with half a cycle shift at a scroll speed of a screen/12 seconds. This enables it to continuously move pixels in the horizontal scroll.

Abstract: A method for displaying an image with a clear outline by correcting original image data of addresses in the vicinity of addresses on which a boundary line image is contained in an original image wherein the addresses on which a boundary line image is contained in an original image have maximal absolute values of gradients of brightness in the original image.

Abstract: A method for processing video data for increased sharpness. The data undergoes a process by which it is filtered in two dimensions. Using separable, one-dimensional filters, the process cores the data to prevent noise enhancement and applies gain to the resulting data. Finally, both dimensional filtered components are then combined to form the final sharpened image. Because of the separable nature of the process and filters, either one of the dimensional filters could be eliminated, while retaining the robustness of the method.

Abstract: Video signal processing apparatus and method which generates an aperture correction signal, or detail signal, which has a narrow width even for video signals that have low high frequency components. The processing apparatus generates a standard detail signal from the video signal, detects the maximum amplitude level of plural samples of the detail signal, and modifies the amplitude level of one of those samples as a function of the ratio of the sample's amplitude level to the detected maximum amplitude level. The apparatus further properly modifies the detail signal even when the positive and negative maximum amplitudes of the video signal are substantially different.

Abstract: A method and circuit for reducing distortion of low level signals by efficiently separating noise and signal components using correlativity between respective red (R), green (G) and blue (B) channels and the amplitudes of the detail components. The detail enhancement method includes extracting detail components, determining signal/noise, cancelling noise or enhancing details and outputting a detail-enhanced image signal. Even if a high-pass frequency component of the input signal is smaller than a critical value, the input signal is accurately separated as a signal component or a noise component. The signal is cancelled only when the input signal is classified as a noise component.

Abstract: An improved horizontal contour emphasizing signal processor is provided with a detector to detect a period during which luminance signal changes are produced, a generator to generate a rectangular-wave signal during this period, and a multiplier for multiplying a first horizontal contour emphasizing signal derived from the luminance signal to the rectangular-wave signal to generate a second horizontal contour emphasizing signal, and in this case, a preshoot is added to the input luminance signal waveform at the starting part of a radical waveform change and an overshoot is added at the ending part of the waveform change in order to perform finer horizontal contour emphasizing.

Abstract: The present invention relates to a digital image signal processing method and apparatus, and more particularly, to an edge compensation method and apparatus of an image signal capable of improving the quality of an image in instruments performing a digital image signal process. An edge compensation method of a digital image signal processing system includes the steps of generating a luminance signal from a luminance matrix by receiving digital red, green and blue R, G and B image signals, generating a vertical edge signal in real-time by sequentially delaying the luminance signal in units of one horizontal line, generating a horizontal edge signal in real-time by sequentially delaying the luminance signal delayed in units of one horizontal line during a given time period, generating a composite image edge signal by adding the vertical edge signal to the horizontal edge signal, and outputting an edge-compensated luminance signal by adding the composite image edge signal to an uncompensated luminance signal.

Abstract: A video signal is applied to a kinescope having scan velocity modulation for improving picture sharpness in the vertical direction. Pictures from video signals of a type having non-interpolated and vertically interpolated lines (e.g., interlace-progressive up-converted) will tend to exhibit a significant reduction of sharpness in vertical direction. This problem is corrected by applying scan velocity modulation only to the interpolated lines of the video signal. Furthermore, the vertical deflection is restricted to horizontal structures or real vertical transitions, respectively. In order to have a high noise immunity of this sensitive processing, the resulting luminance amplitude of the shifted line as well as the vertical deflection is controlled to be strongly dependent on the current video signal (soft decision).

Abstract: For progressive scan conversion adjacent fields cannot be used to interpolate moving objects because motion blur will be introduced then. The most simple solution is to insert the average of the two adjacent lines for each missing line. A technique superior to vertical averaging represents the DIAG3 algorithm, where according to the found minimum gradient the orientation of the interpolation filter is chosen. But in case of high diagonal frequencies interpolation errors will occur. Therefore it is tested if the reconstructed pixel value exceeds or falls below the pixel values in the two adjacent lines of the input signal. If this happens, instead of one of the detected diagonal directions the vertical direction is taken, it.e. a vertical averaging is carried out.

Abstract: In video signal processing circuitry detail enhancement is done on each of three color channels in response to the detail information, the enhancement of the detail in each color channel being done in reliance on separated high-spatial-frequency information originally contained in one or more of the channels. The high-spatial-frequency information is separated by differentially combining a fullband video signal with that signal as filtered by a cascade connection of vertical lowpass filter and horizontal lowpass filter.

Abstract: According to a presently preferred embodiment of the invention, image enhancement apparatus for digital video images comprises a two-stage filter comprising a median filter and a recursive filter. The median filter operates in one, two, and three dimensions wherein the cluster of pixels framing the center pixel are ranked, and the median value of the pixel cluster is chosen as the correct pixel value. The pixel cluster configuration is selectable, as are the planes where the pixels are located. Multiple weights may be given to the appropriate median filter inputs. A motion detector is used to prevent replacement of each pixel by its pixel cluster median value when there is excessive motion. Finally an adjustable pixel-replacement threshold is defined. Each pixel must deviate from its median value before it is replaced by that value.

Abstract: An image contour enhancing apparatus capable of minimizing excessive enhancement of the image contour in an image area where both a horizontal contour enhancing signal and a vertical contour enhancing signal are generated in overlapping relation. In the image contour enhancing apparatus, an image contour enhancing signal produced by deriving a horizontal contour enhancing signal from a video input signal by a high-pass filter, deriving a vertical contour enhancing signal from the video input signal by another high-pass filter and by adding these contour enhancing signals is added by an adder to the video input signal to improve the sharpness of the image contour, and circuits are provided for making variable the signal level of the image contour enhancing signal in the image area where both the horizontal and vertical contour enhancing signals are generated in overlapping relation.

Abstract: A video signal correction apparatus has a memory for storing a luminance value and color difference values for each pixel in an image, a horizontal color difference correction arrangement and a vertical color difference correction arrangement. The horizontal color difference correction arrangement includes a luminance change point detector for detecting leading and trailing edges, in which an area defined between the leading and trailing edges is a boundary between two colors. The colors in a region outside the boundary and adjacent to the edges are bleeding. The color difference values further outside the bleeding region are sampled to make reference color difference value. The reference color difference value is used for replacing the color difference values in the bleeding region to eliminate or reduce the bleeding color.

Abstract: In order to reduce the effects of discontinuities at the edge of a picture and reduce erosion of the usable picture area caused by a filtering or interpolation operation, the edges of the picture are extrapolated prior to such an operation. This may be achieved by a circuit which receives an input line of active pixel data; forms from the input line a delayed line of the active pixel data; produces at least one additional start pixel data derived from a pixel data at or adjacent the start of the input line; produces at least one additional end pixel data derived from a pixel data at or adjacent the end of the input line; and forms an output sequence of pixel data by selecting for the output sequence the additional start pixel data, then at least part of the delayed line, and then the additional end pixel data. This circuit therefore performs zero-order (repeat) extrapolation at the beginning and end of each line.