公开(公告)号：US5572236A

公开(公告)日：1996-11-05

申请号：US151592

申请日：1993-11-12

申请人： Ephraim Feig ,  Elliot N. Linzer

发明人： Ephraim Feig ,  Elliot N. Linzer

IPC分类号： H03M7/30 ,  G06F17/14 ,  G06T9/00 ,  G06T11/60 ,  H04N7/26 ,  H04N7/30 ,  H04N11/04 ,  G09G5/02

CPC分类号： H04N19/60 ,  G06F17/147 ,  G06T9/008 ,  H04N11/044

摘要： This invention minimizes the number of non-trivial multiplications in the DCT process by rearranging the DCT process such that non-trivial multiplications are combined in a single process step. In particular, the DCT equations for the row-column application of the DCT process on k=pq points wherein p and q are relatively prime, are factored into a permutation matrix, a tensor product between matrices having p.times.p and q.times.q points, and a matrix whose product with an arbitrary vector having pq points requires pq-p-q+1 additions and/or subtractions. The tensor product is then further factored to remove non-trivial multiplications by developing a a first factor having (pq-p-q+1)/2 non-trivial multiplications and a diagonal matrix. The diagonal matrix is not unique for any set of data. Its j,j-th elements are chosen from a subproduct of the factorization of the tensor product. Once the diagonal matrix elements are chosen the remaining first factor is developed. When the factorization is complete, the diagonal matrix is absorbed into the quantization step which follows the DCT process. The quantization step is the multiplication of a diagonal matrix by the DCT output data. The quantization diagonal matrix is combined with the diagonal matrix of the DCT to form one multiplication process by which non-trivial elements multiply data. This combination of multiplication steps reduces the number of non-trivial multiplications in the DCT process.

摘要翻译： 本发明通过重新排列DCT处理使得DCT过程中的非平凡乘法数量最小化，使得在单个处理步骤中组合非平凡乘法。 特别地，用于DCT处理的行列应用的DCT方程在k = pq点上，其中p和q是相对素数，被分解为置换矩阵，具有pxp和qxq点的矩阵之间的张量乘积和矩阵 其具有具有pq点的任意向量的乘积需要pq-p-q + 1个加法和/或减法。 然后通过开发具有（pq-p-q + 1）/ 2个非平凡乘法和对角矩阵的第一因子，进一步考虑张量乘积以去除非平凡乘法。 对角矩阵对于任何数据集都不是唯一的。 其第j，第j个元素是从张量积分解的子产物中选出的。 一旦选择了对角矩阵元素，就开发出剩下的第一个因素。 当分解完成时，对角矩阵被吸收到跟随DCT处理的量化步骤中。 量化步长是对角矩阵乘以DCT输出数据。 量化对角矩阵与DCT的对角矩阵组合，形成一个乘法过程，非平凡元素乘以数据。 这种乘法步骤的组合减少了DCT过程中的非平凡乘法次数。

公开(公告)号：US5523847A

公开(公告)日：1996-06-04

申请号：US958998

申请日：1992-10-09

申请人： Ephraim Feig ,  Elliot N. Linzer

发明人： Ephraim Feig ,  Elliot N. Linzer

IPC分类号： G06F17/14 ,  G06T9/00 ,  G06F17/10

CPC分类号： G06F17/147 ,  G06T9/008

摘要： The objects of this invention are accomplished by rearranging the DCT process such that non-trivial multiplications are combined in a single process step. In particular, the DCT equations for the application of the two-dimensional DCT process on k.times.k points are factored into 1) a permutation matrix, 2) a diagonal matrix, and 3) a matrix whose product with an arbitrary vector having k.sup.2 points requires considerably fewer non-trivial multiplications. Furthermore, in some cases none of these non-trivial multiplications are nested; that is, no output of a non-trivial multiplication is ever involved in another multiplication operation. The diagonal matrix is not unique for any set of data. Once the diagonal matrix elements are chosen the remaining factors are developed. When the factorization is complete, the diagonal matrix is absorbed into the quantization step which follows the DCT process. The quantization step is the multiplication of a diagonal matrix by the DCT output data. The quantization diagonal matrix is combined with the diagonal matrix of the DCT to form one multiplication process by which non-trivial elements multiply data. This combination of multiplication steps reduces the number of non-trivial multiplications in the DCT process. In addition, the non-trivial multiplications are approximated by multiplications by rational numbers, whose computation is achieved with additions, subtractions and shift operations (multiplications by powers of 2). This approximation procedure offers greater numerical accuracy than a procedure based upon approximating the multiplication factors of a standard DCT process with rational factors because the number of non-trivial multiplications have been minimized and none are nested. Furthermore, if the quantization constants are chosen so that they are all either powers of 2 or sums and differences of powers of 2, then the quantization process itself can be achieved with either shifts only or with shifts and additions and subtractions only. Finally, the same reduction in non-trivial multiplications is provided for the inverse DCT and dequantization process.

公开(公告)号：US08749649B1

公开(公告)日：2014-06-10

申请号：US13472661

申请日：2012-05-16

申请人： Elliot N. Linzer

发明人： Elliot N. Linzer

IPC分类号： H04N5/228 ,  H04N5/217

CPC分类号： H04N5/2355 ,  H04N5/23254 ,  H04N5/23277

摘要： A method of capturing a still frame is disclosed. The method generally includes the steps of (A) generating a plurality of initial frames with a sensor in response to an optical signal and (B) generating the still frame by combining the initial frames using a noise reduction technique.

摘要翻译： 公开了一种捕获静止帧的方法。 该方法通常包括以下步骤：（A）响应于光信号产生具有传感器的多个初始帧，以及（B）通过使用降噪技术组合初始帧来产生静止帧。

公开(公告)号：US08675101B1

公开(公告)日：2014-03-18

申请号：US11692733

申请日：2007-03-28

申请人： Elliot N. Linzer ,  Didier LeGall

发明人： Elliot N. Linzer ,  Didier LeGall

IPC分类号： H04N5/217 ,  H04N9/64

CPC分类号： H04N5/367 ,  H04N5/361 ,  H04N5/3651

摘要： A method of pixel correction is disclosed. The method generally includes the steps of (A) generating a plurality of pixel values from a sensor in response to an optical signal, (B) generating a temperature signal representing a temperature of the sensor and (C) generating a plurality of corrected values by applying a per-pixel correction model to the pixel values, wherein the per-pixel correction model is responsive to the temperature.

摘要翻译： 公开了一种像素校正方法。 该方法通常包括以下步骤：（A）响应于光信号从传感器生成多个像素值，（B）产生表示传感器温度的温度信号，（C）通过以下步骤产生多个校正值： 对像素值应用每像素校正模型，其中每像素校正模型响应于温度。

公开(公告)号：US08654859B1

公开(公告)日：2014-02-18

申请号：US12640415

申请日：2009-12-17

申请人： Elliot N. Linzer ,  Hsiang-Chun Huang

发明人： Elliot N. Linzer ,  Hsiang-Chun Huang

IPC分类号： H04N7/18 ,  H04N7/26

CPC分类号： H04N19/64 ,  H04N19/103 ,  H04N19/14 ,  H04N19/147 ,  H04N19/156 ,  H04N19/176 ,  H04N19/18 ,  H04N19/36 ,  H04N19/50 ,  H04N19/503 ,  H04N19/593 ,  H04N19/94

摘要： A method of rate-distortion computations for video compression is disclosed. The method may include steps (A) to (C). Step (A) may generate a plurality of transform coefficients from a residual block of the video using a circuit. Step (B) may generate a block distortion value (i) based on the transform coefficients and (ii) independent of a plurality of inverse transform samples produced from the residual block. Step (C) may generate a rate-distortion value from the block distortion value.

摘要翻译： 公开了一种用于视频压缩的速率失真计算的方法。 该方法可以包括步骤（A）至（C）。 步骤（A）可以使用电路从视频的残留块生成多个变换系数。 步骤（B）可以基于变换系数产生块失真值（i），并且（ii）独立于从残余块产生的多个逆变换样本。 步骤（C）可以从块失真值产生速率失真值。

公开(公告)号：US08531549B1

公开(公告)日：2013-09-10

申请号：US12712307

申请日：2010-02-25

申请人： Elliot N. Linzer ,  Leslie D. Kohn

发明人： Elliot N. Linzer ,  Leslie D. Kohn

IPC分类号： H04N9/73

CPC分类号： H04N9/68 ,  H04N9/045 ,  H04N9/67

摘要： An apparatus having a circuit is disclosed. The circuit may be configured to (i) process a digital image received from a camera sensor and (ii) color correct at least one pixel of the digital image after the processing. The color correction generally includes a lookup table-based conversion of the pixel from a first luminance-and-chrominance representation to a second luminance-and-chrominance representation.

摘要翻译： 公开了一种具有电路的装置。 电路可以被配置为（i）处理从相机传感器接收的数字图像，以及（ii）在处理之后对数字图像的至少一个像素进行颜色校正。 颜色校正通常包括将像素从第一亮度和色度表示到第二亮度和色度表示的基于查找表的转换。

公开(公告)号：US08446962B2

公开(公告)日：2013-05-21

申请号：US12633094

申请日：2009-12-08

申请人： Elliot N. Linzer

发明人： Elliot N. Linzer

IPC分类号： H04N7/12

CPC分类号： H04N19/17 ,  H04N7/0122 ,  H04N19/115 ,  H04N19/124

摘要： An encoder comprising a first circuit and a second circuit. The first circuit may be configured to (i) generate a cropped video signal in response to separating a video signal and (ii) generate overscan information describing a shape of an overscan region. The video signal conveys an image having a picture region containing image information and the overscan region. The cropped video signal conveys the picture region. The second circuit may be configured to generate a digital video bit-stream in response to compressing said cropped video signal. The overscan region is absent from the digital video bit-stream as transmitted from the encoder.

摘要翻译： 一种包括第一电路和第二电路的编码器。 第一电路可以被配置为（i）响应于分离视频信号而产生经裁剪的视频信号，并且（ii）生成描述过扫描区域的形状的过扫描信息。 视频信号传送具有包含图像信息和过扫描区域的图像区域的图像。 剪切的视频信号传送图像区域。 第二电路可以被配置为响应于压缩所述裁剪的视频信号而产生数字视频比特流。 从编码器发送的数字视频比特流中不存在过扫描区域。

公开(公告)号：US08223264B2

公开(公告)日：2012-07-17

申请号：US12983999

申请日：2011-01-04

申请人： Lowell L. Winger ,  Yunwei Jia ,  Aaron G. Wells ,  Elliot N. Linzer ,  Simon Booth ,  Guy Cote

发明人： Lowell L. Winger ,  Yunwei Jia ,  Aaron G. Wells ,  Elliot N. Linzer ,  Simon Booth ,  Guy Cote

IPC分类号： H04N7/01 ,  H04N11/20 ,  H04N5/21 ,  G06K9/48 ,  G06K9/40

CPC分类号： H04N7/012 ,  H04N5/142 ,  H04N7/0135 ,  H04N7/0142

摘要： A method for deinterlacing a picture is disclosed. The method generally includes the steps of (A) generating a plurality of primary scores by searching along a plurality of primary angles for an edge in the picture proximate a location interlaced with a field of the picture, (B) generating a plurality of neighbor scores by searching for the edge along a plurality of neighbor angles proximate a particular angle of the primary angles corresponding to a particular score of the primary scores having a best value and (C) identifying a best score from a group of scores consisting of the particular score and the neighbor scores to generate an interpolated sample at the location.

摘要翻译： 公开了一种用于去隔行扫描图像的方法。 该方法通常包括以下步骤：（A）通过沿图像中的边缘邻近的图像的边缘沿多个主角度搜索生成多个主分数，（B）生成多个相邻分数 通过搜索沿着与具有最佳值的主分数的特定分数相对应的主角度的特定角度的多个相邻角度的边缘，以及（C）从由特定分数组成的分数组中识别最佳分数 和邻居得分，以在该位置生成内插样本。

公开(公告)号：US08164636B1

公开(公告)日：2012-04-24

申请号：US12256723

申请日：2008-10-23

申请人： Elliot N. Linzer

发明人： Elliot N. Linzer

IPC分类号： H04N5/228

CPC分类号： H04N5/2355 ,  H04N5/23254 ,  H04N5/23277

摘要： A method of capturing a still frame is disclosed. The method generally includes the steps of (A) generating a plurality of initial frames with a sensor in response to an optical signal and (B) generating the still frame by combining the initial frames using a noise reduction technique.

公开(公告)号：US07982788B1

公开(公告)日：2011-07-19

申请号：US12181499

申请日：2008-07-29

申请人： Elliot N. Linzer ,  Wilson Kwok

发明人： Elliot N. Linzer ,  Wilson Kwok

IPC分类号： H04N5/335

CPC分类号： H04N9/045 ,  H04N5/3456 ,  H04N5/3458 ,  H04N5/347 ,  H04N5/357

摘要： A method of generating video and a video camera are disclosed. The method generally includes the steps of (A) generating an input signal by sensing an optical signal using a plurality of first pixels, wherein (i) the sensing is capable of a pixel reduction by at least one of binning the first pixels and skipping some of the first pixels and (ii) a plurality of first spatial separations among the first pixels in the input signal are (a) uniform both horizontally and vertically while the pixel reduction is inactive and (b) non-uniform while the pixel reduction is active, (B) generating a plurality of second pixels in response to the first pixels such that a plurality of second spatial separations among the second pixels are uniform both horizontally and vertically while the pixel reduction is active and (C) generating an output signal carrying the second pixels.