Abstract: A method for real time processing of a sequence of video frames. The video frames are received in synchronization with a recording of the video frames in real time for triggering an alert. The method is implemented by execution of program code on a processor of a computer system. Each frame includes a two-dimensional array of pixels and a frame-dependent color intensity at each pixel. An algorithm determines whether a static object in a current frame of the video frames is an abandoned object or a removed object. The determined status, the current frame time, the static region, and the static object are stored in a data storage medium of the computer system. An alarm is triggered in response to satisfaction of requirements that include a persistence requirement, a non-persistence duration requirement, and a persistence duration requirement.

Abstract: An apparatus for recognizing contents of a video made of picture frames includes a splitting unit that splits the picture frames into a plurality of sets of video shots based on cut points indicating a change of screen; a similar-video-shot extracting unit that extracts video shots similar to each of the video shots from among the sets of video shots; a maximum-count-video-shot extracting unit that counts a number of similar video shots for each of the video shots and extracts a maximum count video shot having a maximum count of the similar video shots; and a representative-video-shot determining unit that takes the maximum count video shot as a representative video shot for the video.

Abstract: An apparatus including a one-field delay circuit 21 for delaying a luminance signal F0 of a video signal under judgment by an amount of one field; a subtractor circuit 22 for generating a difference signal FD0 indicating the difference between a luminance signal F1 and the luminance signal F0 for each field; an adder circuit 23; a one-field delay circuit 24; a one-field delay circuit 25 for delaying the difference signal FD0 by an amount of one field; and a comparison circuit 26 and a judgment circuit 27 for comparing the difference signals FD0 and FD1 and deciding if the luminance signal FD0 is a film video signal based on the result of the comparison.

Abstract: A method and a system for video noise reduction based on moving content detection are described. Aspects of a system for processing images may include circuitry within a chip that determines a motion metric that indicates an amount of motion between a current video picture and at least one of the following: at least one preceding video picture and at least one subsequent video picture. The motion metric may be computed from a maximum value derived by summing, over a plurality of corresponding pixels that are located within a region around a reference pixel in a current video picture, differences in values of the plurality of corresponding pixels. The circuitry within the chip may also compute a blending factor that has a nonlinear relationship to the motion metric. The circuitry within the chip may adjust at least one pixel in the current video picture based on the computed blending factor.

Abstract: An improved temporal noise reduction method and system detects the global motion and adjusts the overall gain of the temporal filtering. Temporal noise reduction is applied to two video frames, wherein one video frame is the current input noisy frame, and the other video frame is a previous filtered frame stored in memory. In this method, noise estimation is first performed to estimate the noise variance/standard deviation in the input video sequence. Then, motion estimation is applied to obtain the motion vectors indicating relative motion between the pixels in the current noisy frame and the corresponding pixels in the previous noise-reduced frame. From such motion vectors, global motion estimation is applied to estimate the camera motion of the video sequence. If reliable global motion is obtained, the overall gain of the temporal filtering is reduced by adjusting the estimated noise level. Motion blur is thus prevented.

Abstract: The present invention discloses a variable-field motion detector having access to a plurality of video fields of an interlaced video signal for detecting a motion situation of an image area in the interlaced video signal. The variable-field motion detector includes: a plurality of pixel difference circuits each for computing a detection value according to the difference between the pixel values of a single pixel in two different video fields; a decision circuit coupled to the pixel difference circuits for determining the motion situation of the image area according to the detection values; and a field-number adjuster for adjusting the pixel difference circuits and/or the decision circuit to eliminate the effect of some video fields according to a detection number.

Abstract: A method of bidirectional temporal noise reduction in a video signal processing system is provided. A video signal comprising a video sequence of frames is received. Backward temporal noise reduction is performed on the sequence of frames to obtain backward noise-reduced frames. Then, forward temporal noise reduction is performed on the backward noise-reduced frames, to reduce noise in the video sequence of frames.

Abstract: A method and system for detecting color-crossing error in decoded video signals is presented. The color-crossing error detection method and system detects a color-crossing pattern in a set of corresponding pixels that share a pixel location. Each pixel of the set of corresponding pixels comes from a different field of a set of fields, which includes a current field having a current pixel. The method and system determines that color-crossing error exists at the current pixel when the color-crossing pattern exists for a user configurable number of sequential fields of the same field type at the pixel location.

Abstract: The disclosure relates to a device and a method for estimating the noise level of a video signal representing image sequences. The device comprises a movement compensated interpolation means, a recursive filter designed to receive on a first input the output of the recursive filter movement compensated by the movement compensated interpolation means and on a second input the video signal, means of calculating the difference between the video signal and the output of the recursive filter movement compensated by the movement compensated interpolation means. In accordance with the principles of the invention, the device comprises means of estimating the noise level of the video signal according to the difference and a maximum threshold delimiting this difference.

Abstract: A spatio-temporal noise removal method using block classification that removes noise from a third field by using first, second, and third fields which are continuously inputted. The method includes generating first, second, and third motion-compensated fields; classifying blocks of the third field into a uniform region and a non-uniform region based on a variance value of a generated difference image; performing temporal filtering over every block of the third field; performing spatio-temporal filtering over every block of the first and third motion-compensated fields and the third field and performing the temporal filtering over the every block of the third field based on spatially-filtered value; and outputting a third noise-removed field by applying a weighted value to the temporal-filtered value and the spatio-temporal-filtered value.

Abstract: A video analysis technique includes correlating frames from a processed video with frames from a pre-processed, original video. A linear approximation of a relationship between the correlated frames is determined. A disclosed example includes determining a linear approximation that maximizes the number of processed video frames that fit into the linear approximation. The linear approximation and whether any frames do not fit within the linear approximation is then used to provide quality information for analyzing a quality of the processed video.

Abstract: A motion decision value provides a dependable estimate whether motion occurs in a given region of a video image in an interlaced video sequence. The motion detection is particularly applicable in the conversion from interlaced video to progressive video. An input first is fed to an absolute value former which computes a frame difference signal from a difference between the first field and the second field in one frame. A point-wise motion detection signal is computed based on the frame difference signal and noise in the video sequence, wherein the point-wise motion detection signal is noise-adaptive. The point-wise motion detection signal is then followed by a region-wise motion detection that combines the point-wise motion detection signal with an adjacent point-wise motion detection signal delayed by one field.

Abstract: A method of deinterlacing includes generating a deinterlaced display frame including a reference field of lines of display pixels of a first parity and a generated field of lines of display pixels of a second parity. A frame motion map is generated which includes bits representing a presence of motion or an absence of motion at the display pixels of the reference and generated fields. Testing is performed for the presence of motion or the absence of motion at a selected display pixel of the reference field utilizing the frame motion map. In response to detecting a presence of motion at the selected display pixel of the referenced field, replacing a pixel value corresponding to the selected display pixel with a pixel value generated by interpolating between display pixel values corresponding to neighboring display pixels in the generated field.

Abstract: A method of reducing noise in a sequence of digital video frames is performed by motion estimation between a current noisy frame and a previous noise-reduced frame, to generate motion vectors indicating relative motion between the pixels in the current noisy frame and the corresponding pixels in the previous noise-reduced frame; and removing noise from the current noisy frame by computing the weighted average of pixels in the current noise frame and the corresponding pixels in the previous noise-reduced frame based on the motion vectors, to generate a noise-reduced output frame.

Abstract: Methods and apparatuses of detecting the beginnings and endings of scenes in video media, especially videotapes of “Reality TV” scenes, are disclosed. The video medium defines an array of pixels, and comprises a sequence of video frames. Each frame has a set of pixel data values for representing an image, with each pixel data value being associated with a pixel. Exemplary methods and apparatuses select a plurality of video frames from the video medium, and obtain the pixel data values of a subset of pixels of each selected frame. The pixel subsets of at least one pair of successive frames have a difference in the selection of pixels. A dispersion signal representative of the dispersion in the obtained pixel data values over a set of sequential frames is generated, and a signal is generated to indicate an end of a scene when the dispersion signal falls below a threshold level.

Abstract: A video information processing apparatus capable of accurately making a motion decision is provided. The apparatus stores interlaced video information for a plurality of fields, generates motion information on each of the pixels contained in a plurality of fields from at least one of the interlaced video information and stored video information, and generates motion information on an interpolation pixel from motion information on pixels contained in the same field as the interpolation pixel among the generated motion information on each of the pixels. The apparatus also generates motion information on the interpolation pixel from motion information on the pixels contained in fields previous and next to the interpolation pixel at the same position as the interpolation pixel, and determines the motion information on the interpolation pixel from the motion information on these pixels.

Abstract: In an image display apparatus, a video signal is divided for each field into a plurality of sub-fields, each of which is weighted according to the duration of time or number of pulses. The plurality of sub-fields are temporally superimposed for display, so that a grayscale representation is provided. A video signal for the current field is delayed by one field, and output as a video signal for the previous field. Based on the video signal for the current field and the video signal for the previous field, a luminance gradient of an image is detected. A difference between the video signal for the current field and the video signal for the previous field is calculated. Based on the calculated difference and the detected gradient, the amount of motion of the image is calculated by a detecting circuit. Based on the calculated amount of motion of the image, dynamic false contours are reduced by an image data processing circuit.

Abstract: An information processing apparatus includes a generating unit for generating ClipMark formed by a mark specifying a characteristic picture extracted from an input AV stream, as management information for supervising the AV stream, and for generating PlayListMark, formed by marks pointing to a picture optionally specified by a user, from a reproduction domain corresponding to the PlayList defining the combination of preset domains in the AV stream, and a recording unit for recording the ClipMark and PlayListMark as respective independent tables on a recording medium. With the information processing apparatus, it is possible to access a desired location of an AV stream promptly and reliably.

Abstract: A method of extracting key frames from a video sequence, which video sequence includes MPEG compressed video data having block motion vectors. The method initially partially decompresses (202) the MPEG compressed video data to obtain block motion vectors and converts (204) the block motion vectors to forward block motion vectors. The method then generates (206) global motion signals and generates (306) dominant global direction clusters. The method then selects (402,404,406) potential key frames of the video sequence using the generated dominant global direction clusters. The method lastly decompresses (408) the selected key frames to obtain the extracted key frames.

Abstract: Methods and apparatus for detecting movement in a composite television signal. A first difference signal is generated according to the difference between an Nth frame and an N?2th frame of a composite television signal. A second difference signal is generated by Y/C separation of an Nth frame and the N?1th frame of the composite television signal. A smooth signal is generated according to the smoothness of the Nth frame and the N?1th frame of the composite television signal. The first and second difference signals are output selectively according to the smooth signal.

Abstract: A system and method that determine the motion of an absent pixel in a video image. The method may comprise determining the spatial motion and the temporal motion of the absent pixel. The method may also comprise selecting the stronger of the two determined motions. Determining the spatial motion may comprise selecting one of two methods for determining spatial motion. Determining the temporal motion may comprise selecting one of three methods for determining temporal motion. Selection of the methods used may be determined by a user of the system.

Abstract: Disclosed is a frame interpolating apparatus and a method thereof used at a frame rate conversion. The frame interpolating apparatus includes a calculation unit for performing a SAD Map calculation among inputted video signals with respect to a previous frame and a next frame and performing block matching, a determination unit for determining from the block-matched frame whether a video is repeated periodically and is changing fast, and an interpolation unit for selectively calculating a pixel value of an interpolated frame according to a determination result of the determination unit. Accordingly, the interpolated frame is vivid and clear, hence, removing the conventional blurring problem.

Abstract: Systems and methods are provided for detecting motion within a composite video signal. A first chroma difference element compares an in-phase chroma component of the composite video signal to a delayed representation of the in-phase chroma component to produce a first chroma difference value for a given pixel. A second chroma difference element compares a quadrature chroma component of the composite video signal to a delayed representation of the quadrature chroma component to produce a second chroma difference value for the pixel. A parameter mapping component maps the first and second difference values to respective first and second motion parameters that indicates the degree of change in the chroma properties of the pixel. A parameter selector determines a composite motion parameter for the pixel from the first and second motion parameters.

Abstract: Correlation of videos between fields is determined between a difference between an input interlaced signal and a signal that is delayed by one field with respect to the input interlaced signal. Correlation among N-1 sequential fields is compared with a predetermined pattern to determine whether the input interlaced signal is unquestionably a telecine-converted signal, whether it is unquestionably not a telecine-converted signal, or whether it cannot be said to be unquestionably a telecine-converted signal. If a determination of being unquestionably a telecine-converted signal is continued for a predetermined number or more of fields, an instruction signal, which instructs to perform inter-field interpolation on the input interlaced signal, is outputted.

Abstract: A first video signal generation circuit newly generates pixels between pixels in a first progressive video field signal outputted by a first progressive video generation circuit, and outputs a third progressive video field signal. A second video signal generation circuit newly generates pixels between pixels in a second progressive video field signal outputted by a second progressive video generation circuit, and outputs a fourth progressive video field signal. A comparison circuit compares the third progressive video field signal and the fourth progressive video field signal, and outputs the result of the comparison as motion amount information. An output circuit synthesizes an intra-field interpolation signal and a frame interfiled interpolation signal on the basis of the motion amount information, and outputs a composite signal as a progressive video signal.

Abstract: An apparatus and related method for detecting film mode using motion estimation. In the method, a pixel region in each field is sequentially chosen as a target pixel region in a target field to be processed with a motion estimation operation.

Abstract: The present invention relates to an improved interpolation based on motion compensation. In order to avoid interpolation artifacts in proximity to the image borders, in particular in letterbox type images, each motion compensated image data is subjected to a position validation in order to determine whether or not the motion compensated image data can be used for interpolation purposes. By comparing the position of the motion compensated image data in the referenced images with predefined borderlines, impermissible image data positions can be detected and interpolation based on such image data prevented.

Abstract: A method of motion detection for a 3D comb filter video decoder is disclosed. In this method, a plurality of sampled data FmPx,y is obtained and temporarily stored after a composite video signal is sampled, wherein FmPx,y represents a sampled data of the yth pixel on the xth line of the mth frame inside the composite video signal, and m, x, y are positive integers greater than or equal to 0. Then, Fm+1Px,y, FmPx,y, Fm?1Px,y, and Fm?2Px,y are used to determine a motion/still status of the composite video signal. Since the present invention performs the motion detection according to the composite video signal whose Y/C has not been separated yet, the present invention can accurately determine the motion level.

Abstract: An image processing apparatus that can convert an interlaced signal generated by the 3-2 or 2-2 pull-down process, to a progressive signal without degrading the quality of the image represented by the interlaced signal, even if the interlaced signal contains an ordinary 60-fields/sec signal. The apparatus has a progressive conversion unit 11. The progressive conversion unit 11 generates an intra-field interpolated signal and an a motion-adaptive interpolated signal to convert an interlaced signal generated by the 3-2 or 2-2 pull-down process and containing an ordinary 60-fields/sec signal, to a progressive signal. The unit 11 then determines, for each pixel, whether the intra-field interpolated signal contains a double-image error. If a double-image error is detected, the unit 11 replaces, for each pixel, the intra-field interpolated signal by the motion-adaptive interpolated signal.

Abstract: Apparatus for identifying video content includes a scene detector to detect a plurality of consecutive scenes in the video content. The video content may include a video program and an advertisement contained within the video program. A signature generator determines a scene change signature for each of the plurality of consecutive scenes. A content identifier provides the plurality of scene change signatures to a comparator that compares the plurality of scene change signatures to a database having a plurality of video content items to identify the video program. The database includes an ordered plurality of previously determined scene change signatures for each item of video content in the database. The content identifier receives an identification of the video content from the comparator. The content identifier may further receive information related to a position of the plurality of scene change signatures within the ordered plurality of previously determined scene change signatures.

Abstract: A noise reducer for a signal determines a direction of correlation for each picture element (pixel) by calculating sums of absolute differences between a block centered on the pixel and neighboring blocks centered on surrounding pixels and choosing the direction of the neighboring block with the least sum of absolute differences. The pixel is then filtered one-dimensionally by averaging it with neighboring pixels located in the direction of correlation. This noise reduction method is simple, reliable, and avoids needless loss of detail.

Abstract: A summary reproducing apparatus, which is capable of reproducing a summary accurately for each type of video information and of reducing a burden in generating digest information, provided with an audio feature amount extraction unit for obtaining a sound feature amount on the basis of a preset parameter from entered audio/video information, a genre information obtaining unit for obtaining genre information from additional information added to the entered audio/video information, a decision parameter setting unit for setting an optimum parameter for extracting a sound feature amount on the basis of genre information, and a control unit for deciding digest segments to be extracted in stored audio/video information on the basis of an audio feature amount suitable for the preset parameter and for controlling a reproduction unit on the basis of the digest segments, wherein a summary is reproduced by using a parameter optimized for each genre.

Abstract: A non-iterative 3D processing method and system is disclosed for generic noise reduction. The 3D noise reducer is based on a simple conversion of the five types of noise to equivalent additive noise of varying statistics. The proposed technique comprises also an efficient temporal filtering technique which combines Minimization of Output Noise Variance (MNV) and Embedded Motion Estimation (EME). The proposed temporal filtering technique may be furthermore combined with classical motion estimation and motion compensation for more efficient noise reducer. The proposed technique comprises also a spatial noise reducer which combines Minimum Mean Squared Error (MMSE) with robust and effective shape adaptive windowing (SAW) is utilized for smoothing random noise in the whole image, particularly for edge regions. Another modification to MMSE is also introduced for handling banding effect for eventual excessive filtering in slowly varying regions.

Abstract: A system which allows significant camera breaks to be automatically detected among a large number of camera breaks and which is suitable in retrieving or playing a digital video is realized. Using a detected result recorded in an analysis result recording unit, a camera break analyzing unit compares the camera breaks among different digital videos. Thereby, the camera break analyzing unit detects camera breaks in which similar frames are detected, like frames used in common among a plurality of digital video of the same category. Such camera breaks are detected as the significant camera breaks among the large number of camera breaks and are used as indexes for retrieving or playing the digital video.

Abstract: A determining portion first determines which an interpolation pixel position (a target position of image signal) which is positioned in a field that precedes a current field by one field is included in a motion region or a still region by using an image signal of current field and an image signal of two fields before to obtain a determine result of this time. The determining portion finally determines which the interpolation pixel position is included in a motion region or a still region based on the determined result of this time and the history information, which is read out of a memory through a history-information-read-processing portion, on a determined result of past predetermined times(s) corresponding to the interpolation pixel position to obtain a determined result. The memory stores the history information on a determined result of past predetermined times(s) corresponding to each interpolation pixel position.

Abstract: The invention relates to a method and an apparatus for de-interlacing video data by utilizing motion compensation. The method includes performing an operation of motion estimation on a first pixel of the first field and a second target field to generate a first motion vector, wherein the second target field corresponds to the second field; generating a first reference pixel corresponding to the first pixel according to the first motion vector and the second field; and generating a target pixel of a target frame according to the first pixel and the first reference pixel.

Abstract: An adaptive equalization method and system for reducing noise and distortion in a sampled video signal improves the quality of output video information in both consumer and professional applications. A multi-band equalizer applied to the sampled video information reduces noise and distortion artifacts in the sampled video information. The gains of each of the equalizer bands is adjusted dynamically by control outputs provided by a noise and distortion detector. The noise and distortion detector incorporates circuits for comparing the luminance of each plane on a per-pixel basis with neighboring pixels and also includes a pattern matching comparator that detects edge features by comparing each pixel and its neighbors with a set of predetermined patterns. The noise and distortion detection can be further confirmed by comparing the detection results across multiple frames and the equalizer gain values may be further selected by a result of a video motion type classification.

Abstract: A moving average filter with a weighting factor calculates a continuously programmable threshold to determine whether fields could be considered identical or not. This decision is used to detect the cadence of a TELECINE encoded video signal. This moving average filter is also used for detecting the presence of still images in the video data stream by detecting total difference in Y (luminance) of the fields and then calculating the average difference in luminance (Y) of the field. This average difference in luminance value indicates a degree of difference between fields. For two frames of data input to the system, each having two fields, a difference is calculated between the luminance values of the two top fields for each frame. From this difference value a maximum absolute difference history is stored, along with the Sum of Absolute Differences (SAD). The programmable threshold is then calculated by summing the saturated SAD history over time.

Abstract: A plurality of interlaced video signals respectively corresponding to a plurality of continuous fields are generated by first, second, and third one-field delay circuits on the basis of an inputted interlaced video signal. A first progressive video field signal is generated by a first progressive video generation circuit on the basis of the plurality of interlaced video signals. A second progressive video field signal is generated by a second progressive video generation circuit on the basis of the plurality of interlaced video signals. Motion amount information in the vertical direction of a picture is calculated by a comparison circuit on the basis of the first progressive video field signal and the second progressive video field signal.

Abstract: System and method for processing videos and images to a determined quality level. According to an embodiment, the present invention provides a method for enhancing video. The method includes providing a first video element that is uncompressed. The method also includes determining motion information associated with the video element. The method further includes providing a second video element by removing at least a defect from the first video element. The second video element includes a color luminance and a luminance. In addition, the method includes de-interlacing the second video element using the motion information. Furthermore, the method includes scaling the second video element. Also, the method includes providing a third video element by enhancing the chrominance and enhancing the luminance of the second video element. The method additionally includes outputting the third video element.

Abstract: A burn-in control method and video processor for executing the same. The video processor intelligently recognizes aspects of a video image that are likely to cause bum-in, and responsive to such recognition, modifies the video image to prevent uneven aging of the pixels. According to one aspect of the disclosure, modifications are spatially made to an entire video frame, one or more selected regions of a video frame, or one or more individual pixels of a video frame. According to another aspect of the disclosure, modifications are temporally made to all frames in a video stream, selected frames in a video stream, or a single frame in a video stream.

Abstract: A motion vector detection portion detects a motion vector based on an input image signal and an image signal of previous field that is one field before the input signal. A motion compensation portion performs motion compensation on the image signal of previous field using the motion vector to generate a motion-compensated image signal. A reference-image-setting portion selects as a reference image signal either the image signal of previous frame or the motion-compensated image signal. A selection control portion performs motion detection and selects as the reference image signal, the motion-compensated image signal in a motion region and the image signal of previous frame in a motionless region. A correction-processing portion detects a noise component from a difference between the input signal and the reference signal and corrects a signal level of the input signal corresponding to this noise component.

Abstract: One embodiment disclosed relates to the use of object motion estimation to interlace a progressive video sequence. One of a plurality of consecutive frames is segmented and motion vectors for each segment are determined though object motion estimation. Interpolated motion vectors are used to construct at least one intermediate frame, and interlaced fields are extracted from the new sequence of frames that includes intermediate frames. An interlaced sequence with smooth, incremental motion is thus constructed from a progressive video sequence.

Abstract: A system and method for bad weave detection for inverse telecine. To detect a bad weave artifact, the number of reversals of the difference polarity between successive lines within a column of samples is counted. The count of the number of reversals of the difference polarity is referred to as the polarity change count. In the execution phase, the polarity change count can be used by a bad weave detector to take a system out of lock. The polarity change count can also be used during the detection phase to detect a particular cadence.

Abstract: A remote access device is disclosed for capturing, digitizing and communicating video signals from a host computer to a remote computer. The remote computer returns keyboard and mouse signals through the remote access device to the host computer to control the host computer as though the remote keyboard and mouse were directly connected to the host computer. The remote access device includes a circuit module interface for the host computer that allows the remote access device to operate independently of any operating system characteristics associated with the host computer.

Abstract: A method for de-interlacing an interlaced video signal includes generating a per-field motion pattern set for a subject video field, where the motion pattern set comprises a same-parity motion pattern and an opposite-parity motion pattern pair, providing a plurality of progressive mode pattern pairs, where each progressive mode pattern pair is unique and characteristic of one of a plurality of progressive frame-to-interlaced field conversion techniques, and comparing the same-parity and opposite-parity motion pattern pair for the subject video field with each progressive mode pattern pair to determine whether the subject video field is derived from a progressive source and to identify the progressive frame-to-interlaced field conversion technique used. Based on the comparison, a field-merging de-interlacing technique or a per-pixel de-interlacing technique is utilized to de-interlace the subject field to produce a progressive video signal.

Abstract: A method for indexing a sports video program carried by a video stream is disclosed. The method includes temporarily indexing a plurality of shots of the video stream by performing shot detection. In addition, the method further includes extracting a plurality of shots of the sports video program from at least one portion of the shots indexed during the shot detection at least according to low level visual features of the at least one portion, whereby the extracted shots are temporarily kept indexed. Additionally, the method further includes validating a plurality of shots by comparing one of the extracted shots with at least the others of the extracted shots, whereby the validated shots are kept indexed for use of playback of at least one portion of the sports video program.

Abstract: Certain aspects of a method and system for motion compensated temporal filtering using both finite impulse response (FIR) and infinite impulse response (IIR) filtering may include blending at least one finite impulse response (FIR) filtered output picture of video data and at least one infinite impulse response (IIR) filtered output picture of video data to generate at least one blended non-motion compensated output picture of video data. A motion compensated picture of video data may be generated utilizing at least one previously generated output picture of video data and at least one current input picture of video data. A motion compensated picture of video data may be blended with at least one current input picture of video data to generate a motion compensated output picture of video data. The generated motion compensated output picture of video data and the generated non-motion compensated output picture of video data may be blended to generate at least one current output picture of video data.

Abstract: A method for detecting a program deviation period during a television broadcast having a main audio program and a secondary audio program includes: receiving the main audio program; receiving the secondary audio program; converting the audio programs into a main channel and a secondary channel; calculating a similarity value between the main channel and the secondary channel within a candidate period; and determining whether the candidate period is the program deviation period according to the calculated similarity value.

Abstract: A video noise reduction system for reducing video noise in a sequence of video frames. In the video noise reduction system, a temporal filter computes multiple temporal average values for the video frames in different temporal directions. A motion detector computes multiple motion signal values for the video frames in different temporal directions. Finally, a control unit selects one of the temporal average values based on the motion signal values as output.