| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 121 | 影像顯示裝置 | TW097145527 | 2008-11-25 | TW200947416A | 2009-11-16 | 橋本充; 高根澤康記 |
| 本發明提供一種圖像顯示裝置，其即使因如32幀頻轉換(PULL DOWN)或22幀頻轉換之原始素材之位移範圍廣，以致檢測向量之精度劣化之可能性高的情形下，亦可有效利用處理時間、提高檢測向量之精度，而生成更高品質之內插圖像。本發明之圖像顯示裝置係具有藉由於輸入圖像信號之訊框間，以訊框間之位移向量為基礎內插經施加修正處理之圖像，來變換訊框頻率之機構14的液晶顯示裝置，且，在對電視電影機(Telecine)等所生成之2張至3張相同圖像連續之信號進行內插處理時，藉由以第1張之內插圖像生成所使用之位移向量Va為基礎，重新計算下一內插圖像生成用之位移向量，而檢測精度更高、誤差更少的位移向量。其具有重複圖像判定部10，且利用無需進行向量檢測之相同圖像連續的期間，使之前在不同之圖像間檢測到之位移向量的精度更加提高。 | ||||||
| 122 | Multiple frame motion estimation | US693878 | 1991-04-30 | US5151784A | 1992-09-29 | Fabio Lavagetto; Riccardo Leonardi |
| The invention relates to developing a signal to represent each block of an image contained in a frame being interpolated in a motion interpolated system such that the error between the frame being interpolated and the reference frames is minimized without placing any predetermined limitation on the values of either the weights or the displacements employed as motion vectors. The weights and displacements required to achieve the minimization of the interpolation error are jointly determined on a block by block basis. A set of groups having a candidate displacement from each reference frame and, in accordance with an aspect of the invention, their corresponding best weights are determined. An error signal which would result if each member of the set of groups of candidate displacements from each reference frame and their corresponding best weights were employed to represent the block is evaluated. The group having the lowest error signal is either selected to represent the block or as a starting point for the selection of a new set of groups. By employing other aspects of the invention, the number of groups which need be evaluated to represent the block can be reduced from a predetermined maximum number. | ||||||
| 123 | MOTION ESTIMATION FOR VIDEO PROCESSING USING 2-D (SPATIAL) CONVOLUTION | US12508498 | 2009-07-23 | US20090285303A1 | 2009-11-19 | Raju Hormis; Dmitrii Loukianov |
| A device including a two-dimensional convolution unit to perform spatial image filtering. A reference frame mirroring unit is connected to the two-dimensional convolution unit. A mean square error (MSE) decision unit is connected to the two-dimensional convolution unit to perform motion estimation by selecting the displacement that minimizes MSE. | ||||||
| 124 | Motion estimation for video processing using 2-D (spatial) convolution | US10957373 | 2004-09-30 | US07606309B2 | 2009-10-20 | Raju Hormis; Dmitrii Loukianov |
| A device including a two-dimensional convolution unit to perform spatial image filtering. A reference frame mirroring unit is connected to the two-dimensional convolution unit. A mean square error (MSE) decision unit is connected to the two-dimensional convolution unit to perform motion estimation by selecting the displacement that minimizes MSE. | ||||||
| 125 | Motion detection method and its apparatus | US797072 | 1991-11-25 | US5396437A | 1995-03-07 | Toshiya Takahashi |
| A motion detecting method and its apparatus are provided in which during a block matching procedure for detecting movement, error data in displacement between reference two-dimensional blocks and target two-dimensional blocks to be examined of a frame are calculated by a known manner and, in addition, a movement throughout the two-dimensional blocks is detected by summing up a series of the error data at each displacement point of the blocks and selecting the smallest of the error data sum. | ||||||
| 126 | Motion-vector estimation | EP10153225.7 | 2010-02-10 | EP2362655A1 | 2011-08-31 | Sanbao, Xu |
A method of generating a motion vector with sub-pixel resolution associated with a first portion (10) of a first image frame (5) in a sequence of image frames for encoding the sequence of image frames is disclosed. An error surface represents a difference between image data of the first portion (10) of the first image frame (5) and image data of a second portion (20a-c) of a second image frame (15), displaced with a displacement vector (25a-c) in relation to the first portion (10), and is a function of the displacement vector (25a-c). The motion vector is an estimate of a displacement vector (25a-c) that minimizes the value of the error surface. The method comprises obtaining a coarse motion vector, which is an estimate of the motion vector with integer-pixel resolution. Furthermore, the method comprises approximating the error surface in a neighborhood of the coarse motion vector with a biquartic polynomial, and representing terms of the biquartic polynomial with orthogonal polynomials. Moreover, the method comprises generating the motion vector by searching for a displacement vector (25a-c) that minimizes said biquartic polynomial. A corresponding electronic apparatus, a corresponding computer program product, and a corresponding computer-readable medium are also disclosed.
|
||||||
| 127 | Double speed reproduction method | JP12207296 | 1996-05-16 | JPH09307858A | 1997-11-28 | MORI TATSUO |
| PROBLEM TO BE SOLVED: To reduce number of double speed files by conducting plural number of kinds of double speed reproduction from one file. SOLUTION: A double speed file arrangement means 11 extracts frames at an interval of 2a-frames among consecutive video frame arrays forming a motion image for conventional reproduction and one block is configured to be b-frames and a double speed file is generated. The double speed file is prepared for each displacement number (a). A frame extract means 12 suppresses an error (displacement) of a video frame required for a double speed (n) to be a-frame or below and extracts c-sets of frames (c=(2a+1)×b÷n). A double speed frame link means 13 links the extracted video frames to generate the n-multiple speed video frame. The generated n-multiple speed video frame is sent to a user terminal equipment 5 from a communication board 4. Furthermore, a, b are positive integers. COPYRIGHT: (C)1997,JPO | ||||||
| 128 | Method of motion-compensated interframe-prediction in a video-coding device | US08925717 | 1997-09-09 | US06208690B1 | 2001-03-27 | Naoki Tomizawa |
| Motion-compensated interframe-prediction can be realized by affine-transformation of suitably divided areas of an object image with a reduced amount of calculations and an improved coding efficiency. A motion-compensated interframe-prediction method obtains a predictive video-frame from motion-vectors of an input video-frame and a reference video-frame by translating blocks of processable area, determines a prediction-error estimation value of the predictive frame from an input video-frame, compares the determined prediction-error estimation value with a preset threshold value, selects a predictive video-frame obtained by translation (parallel displacement of coordinates) and encodes the prediction-error information when the prediction-error estimation value is smaller than the threshold, or, with the prediction-error estimation value exceeding the threshold, previously prepares a plurality of area-division pattern types, obtains affine transformations of each type starting from the type having the least number of divisions, calculates a prediction-error estimation value of each type, determines the suitable type which prediction-error estimation value is smaller than the threshold, applies a predictive frame by affine-transformation, encodes the prediction-error information and outputs the predictive frame together with side-information such as motion-vectors and area-dividing information. | ||||||
| 129 | Motion-Vector Estimation | US13024354 | 2011-02-10 | US20110194610A1 | 2011-08-11 | Sanbao Xu |
| A method of generating a motion vector with sub-pixel resolution associated with a first portion of a first image frame in a sequence of image frames for encoding the sequence of image frames is disclosed. An error surface represents a difference between image data of the first portion of the first image frame and image data of a second portion of a second image frame, displaced with a displacement vector in relation to the first portion, and is a function of the displacement vector. The motion vector is an estimate of a displacement vector that minimizes the value of the error surface. The method includes obtaining a coarse motion vector, which is an estimate of the motion vector with integer-pixel resolution, approximating the error surface in a neighborhood of the coarse motion vector with a biquartic polynomial, and representing terms of the biquartic polynomial with orthogonal polynomials. Moreover, the method includes generating the motion vector by searching for a displacement vector that minimizes the biquartic polynomial. A corresponding electronic apparatus, a corresponding computer program product, and a corresponding computer-readable medium are also disclosed. | ||||||
| 130 | IMAGE ENCODER, IMAGE DECODER, IMAGE ENCODING METHOD, IMAGE DECODING METHOD AND IMAGE ENCODING/DECODING SYSTEM | PCT/JP1997003825 | 1997-10-23 | WO1998042135A1 | 1998-09-24 | MITSUBISHI DENKI KABUSHIKI KAISHA |
| An image encoder and an image decoder which perform the image displacement other than parallel displacement on a relatively small scale and with which the processing time can be reduced and estimation with a high precision is enabled. The constitution for compression-coding the input image comprises a movement compensating means which detects the frame-to-frame movement of the blocks into which the input image is divided. The constitution further comprises a movement detection unit which includes a deformed block matching section which deforms only integer pixels, i.e. real sampling points present in a partial region corresponding to a reference image for movement detection into predetermined formats, cuts the deformed pixels out, and compares the cut-out deformed pixels with the integer pixels of the blocks of the input image and which outputs a moving vector which gives a minimum error extracted by the coordinate designation and a movement compensation unit which includes a corresponding point determination section which includes the deformed block matching section, correlates the blocks of the reference image in accordance with movement parameters obtained from comparison output, designates the coordinates, deforms and determines the block, and which outputs a predicted partial image. Further, an image decoder is so constructed as to correspond to the construction of the encoder. Moreover, the image decoder calculates the coordinates with a plurality of movement vectors by using also the coordinate values of the half-pixels of the reference image in a movement compensating means and subjects the obtained pixel values to a deformation processing by using a deformation pattern in accordance with a deformed pattern. | ||||||
| 131 | METHOD AND APPARATUS FOR COMPARING DATA SETS. | EP93915353 | 1993-06-14 | EP0646262A4 | 1995-06-07 | FURTEK FREDERICK C |
| A method and apparatus for generating a sequence of displacement vectors and associated minimal error values. The vectors and associated values represent the best match of a current block (40) of elements of a first frame (74) of a signal with one of a plurality of search blocks (61) of elements located within a corresponding search window (41) of a second frame (72, 73). A first stream of data, representing the elements of the first frame is transmitted to a linear array (70) of processing units (puO-pu255); a second stream of data, representing the elements of the second frame is transmitted to the array; a hybrid stream of data from the elements of the second stream is synthesized such that the elements of the hybrid stream are aligned in time with the elements of the first stream so as to enable each processing unit of the array to compute an error between a particular current block (40) and a different search block of the corresponding search window (41). The error is a measure of the difference between two blocks of elements. Specifically, the errors are computed between each current block and each search block of the corresponding search windows such that each processing unit of the array outputs the computed error essentially immediately after the previous unit outputs the error. | ||||||
| 132 | Cathode ray tube display of a motion picture film | US34849773 | 1973-04-06 | US3830973A | 1974-08-20 | PETERS D |
| Frames of a motion picture film are transported at a desired frame rate through a scanning field where a light spot is deflected to trace a scanning raster on a scanned frame of the film. The vertical deflection of the light spot is in an opposite direction from the transportation direction of the film and is substantially proportional to the sum of the displacement of the scanned frame in the scanning field and a vertical sawtooth voltage; the horizontal deflection is in proportion to a horizontal sawtooth voltage. The sawtooth voltages and a video signal proportional to light emanating from the scanned frame are provided to a cathode ray tube where a viewing raster is traced by a beam on the face thereof whereby an image on the scanned frame is displayed. During a retrace time of the scanning raster, the light spot is deflected to an edge of a sprocket hole of the film associated with the scanned frame. The vertical component of the deflection to the edge is in proportion to the sum of displacement voltage corresponding to the displacement of the scanned frame, a vertical reference voltage and an error voltage. A signal having a known relationship to the error voltage is provided to vertically deflect the scanning raster to reduce the error voltage, thereby reducing an undesired shift of the scanning raster. In response to the displacement voltage corresponding to the scanned frame being about to pass from the scanning field, the displacement voltage is reset whereby the scanning raster is traced on a succeeding frame.
|
||||||
| 133 | Motion vector detecting method | JP34211895 | 1995-12-28 | JPH08242456A | 1996-09-17 | KIN SOUKOU |
| PROBLEM TO BE SOLVED: To increase encoding efficiency by selecting a minimum error function among calculated error functions and regarding the corresponding displacement vector as a motion vector for a search block. SOLUTION: A signal of the current frame is inputted to a search block generation part 10 through a line L12 and the generation part 10 divides the inputted current frame into search blocks of the same size consisting of HXV pixels. Pixel data of a current search block are provided, block by block, for mean value subtraction parts 40-1 to 40-n in predetermine order. A signal of the last frame which is stored in the memory is inputted to a search region generation part 15 through a line L13. The generation part 15 divides the last frame into search regions as many as the search blocks in the current frame and supplies them to candidate block parts 20-1 to 20-m. Then displacement vectors D between the pixels in each candidate block and the pixels in the current search block are found. The vector D having the smallest error among them is defined as a motion vector. | ||||||
| 134 | Boundary matching motion estimation apparatus | US381797 | 1995-02-01 | US5596370A | 1997-01-21 | Hae-Mook Jung |
| An apparatus for determining a motion vector representing a displacement between a current frame and a previous frame of video signals comprises an error detector for comparing the error functions calculated from block matching sections to each other and selecting M number error functions in the order of their magnitude beginning from a smallest, a displacement vector selector for selecting M number of displacement vectors from displacement vectors generated from candidate block formation sections, a candidate block selector for selecting M number of candidate blocks, M number of boundary matching sections for generating M sets of boundary differences, M number of comparison and counting sections for comparing boundary differences in one of the M sets of boundary differences with a predetermined value, to count the number of the boundary differences having a value larger than the predetermined value; and an optimum motion vector selector for selecting a counted number having a minimum value to determine one of said M number of displacement vectors which corresponds to the selected counted number, as the motion vector for the search block. | ||||||
| 135 | 자동차용 허브베어링의 틈새 측정방법 | KR1020060048159 | 2006-05-29 | KR1020070114499A | 2007-12-04 | 송영수; 배석용 |
| A method for measuring the clearance of a hub bearing for an automobile is provided to reduce cost by measuring the clearance in one process, and to improve reliability by eliminating accumulation errors caused by a plurality of measuring instruments. A method for measuring the clearance of a hub bearing for an automobile includes the steps of: installing an inner race on the outer surface of a hub, installing an outer race corresponding to the upper part of the inner race, and fixing the hub to a frame(S100); applying a load under 5kgf to the outer surface of the outer race to prevent vibration and movement of the outer race(S110); gradually fitting the inner race into the hub after contacting a pressing jig to the outer surface of the inner race(S120); measuring the position change of the outer race and the pressing jig(S130); measuring the displacement of the cross section of the inner race as the outer race is moved when the inner race is contacted to a ball of the inner race side(S140); and measuring the displacement of the cross section of the inner race after completely fitting the inner race into the hub(S150). | ||||||
| 136 | Method and apparatus for contour motion estimating a binary image by using a weighted block match algorithm | US918040 | 1997-08-25 | US5969766A | 1999-10-19 | Jin-Hun Kim |
| A motion estimating method, for use in a motion estimation between a current and a previous frames of a binary video image, wherein the current frame is divided into a plurality of equal sized search blocks, forms a search region corresponding to each search block within the previous frame and a plurality of candidate blocks within the search region, each of the candidate blocks having a same size as the search block, to thereby provide a displacement of each candidate block from the search block as a displacement vector of each candidate block. Thereafter, the method overlaps the search block with each candidate block to thereby determine an unmatched region, a boundary of a matched region and a boundary of the search block and assigns a weight to each of the pixels within the unmatched region on a predetermined basis, wherein the weight may vary from pixel to pixel. Then, the method calculates a weighted error of each candidate block by using the weights and selects a displacement vector which has a minimum error as an optimum motion vector. | ||||||
| 137 | Stabilizing system for film scanner | US3767852D | 1972-06-26 | US3767852A | 1973-10-23 | HOROWITZ H; DECKER S; MC MANN R |
| This disclosure applies to an apparatus for scanning a film having a succession of frames along its length, the apparatus including a film transport for moving the film at a substantially uniform rate past a scanning position, means for electronically scanning the frames at the scanning position, and means for initially registering each frame to be scanned with the scanning beam. There is disclosed an improved system for continuously retaining registration between a particular frame being scanned and the scanning beam. Means are provided for continuously sensing changes in the velocity of the film during scanning of the particular frame and for generating a velocity error signal indicative of said changes. Further means are provided for accumulating values of the velocity error signal to produce a displacement error signal representative of the distance by by which velocity changes have displaced the particular film frame with respect to its initial registration with the scanning beam. Finally, means are provided for continuously correcting the scanning beam position in accordance with the displacement error signal. In a preferred embodiment of the invention, the correcting means includes an auxiliary deflection yoke for the scanning tube, the yoke receiving correction signals from both a dynamic framing circuit and the displacement error circuit.
|
||||||
| 138 | Coding of animated 3-D wireframe models for internet streaming applications: methods, systems and program products | US10198129 | 2002-07-19 | US06947045B1 | 2005-09-20 | Jörn Ostermann; Socrates Varakliotis |
| A 3-D wireframe model expressed in terms of nodes and vertices receives a 3-D video or like signal representative of a scene expressed in terms of a reference model, I frames and P frames. A DPCM coder takes advantage of the temporal correlation of the displacement of each vertex along every axis in the 3-D space. The 3-D signal is a set of non-zero displacements of all vertices and all nodes (sl[n, v]) at time tl. The decoded set (animation frame) of the previous instance is used as the predicted value (si-l[n, v]). The prediction error el[n, v], i.e. the difference between the current displacement set and the predicted one, is computed and quantised (el[n, v]). Finally, the quantised samples are entropy coded (ci[n, v]) using an adaptive arithmetic coding algorithm to handle the unknown data statistics. The predictive scheme described above prevents quantization error accumulation. A DPCM decoder first decodes arithmetically the received samples (‘e’ [n, v]) and computers the decoded samples (si′ [n, v]). | ||||||
| 139 | METHOD AND APPARATUS FOR COMPARING DATA SETS | EP93915353.0 | 1993-06-14 | EP0646262A1 | 1995-04-05 | FURTEK, Frederick C. |
| A method and apparatus for generating a sequence of displacement vectors and associated minimal error values. The vectors and associated values represent the best match of a current block (40) of elements of a first frame (74) of a signal with one of a plurality of search blocks (61) of elements located within a corresponding search window (41) of a second frame (72, 73). A first stream of data, representing the elements of the first frame is transmitted to a linear array (70) of processing units (puO-pu255); a second stream of data, representing the elements of the second frame is transmitted to the array; a hybrid stream of data from the elements of the second stream is synthesized such that the elements of the hybrid stream are aligned in time with the elements of the first stream so as to enable each processing unit of the array to compute an error between a particular current block (40) and a different search block of the corresponding search window (41). The error is a measure of the difference between two blocks of elements. Specifically, the errors are computed between each current block and each search block of the corresponding search windows such that each processing unit of the array outputs the computed error essentially immediately after the previous unit outputs the error. | ||||||
| 140 | Method and device for deciding optimum motion vector | JP19142896 | 1996-07-01 | JPH0974569A | 1997-03-18 | KIM SANG-HO |
| PROBLEM TO BE SOLVED: To decide an optimum motion vector by using a spatial correlation between the picture elements of block signals, which is compensated with a timewise correlation between frames. SOLUTION: An error function between picture element data on the search block of the present frame and picture element data on respective candidate blocks of candidate block forming parts 24-1 to 24-N is calculated and an error function value on the candidate block is obtained in block matching parts 26-1 to 26-N. All the error functions are supplied to a compactor 28. The comparator 28 compares the error functions, selects M-pieces of error functions in order from the smallest error value, and outputs a group of primary selection signals showing the candidate blocks corresponding to the selected error function to a mutliplexer 29. Then, the multiplexer 29 elects the displacement vector of the candidate block corresponding to the selected error function and supplies it to an optimum motion vector decision unit as candidate motion vectors MV29-1 to 29-M for the search block. | ||||||
QQ群二维码
意见反馈
意见反馈