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1. 发明申请

WO2006022729A1 EDGE ADAPTIVE IMAGE EXPANSION AND ENHANCEMENT SYSTEM AND METHOD 审中-公开
标题翻译：边缘自适应图像扩展和增强系统和方法
公开(公告)号：WO2006022729A1
公开(公告)日：2006-03-02
申请号：PCT/US2004/027083
申请日：2004-08-20
申请人： SILICON OPTIX INC. , LACHINE, Vladimir , SMITH, Gregory, Lionel , LEE, Louie
发明人： LACHINE, Vladimir , SMITH, Gregory, Lionel , LEE, Louie
IPC分类号： G06K9/40
CPC分类号： G06T3/403 , G06T5/002 , G06T7/13 , G06T2207/10016 , G06T2207/20012 , G06T2207/20021 , G06T2207/20192
摘要： An edge adaptive system and method for image filtering. The method maps each output pixel onto input image coordinates (110) and then prefilters and resamples the input image pixels around this point to reduce noise and adjust the scale corresponding to a particular operation. Then the edge in the input image is detected based on local (125) and average (127) signal variances in the input pixels. According to the edge detection parameters (129), including orientation, anisotropy and variance strength, the method determines a footprint and frequency response for the interpolation of the output pixel. In a more particular implementation, the method divides the input pixel space into a finite number of directions called skews, and estimates the edge orientation with the nearest skew direction. This further facilitates pixel inclusion in the interpolation of the output pixel.
摘要翻译：边缘自适应系统和图像滤波方法。该方法将每个输出像素映射到输入图像坐标（110）上，然后对该点附近的输入图像像素进行预滤波和再采样，以减少噪声并调整与特定操作对应的刻度。然后基于输入像素中的局部（125）和平均（127）信号方差来检测输入图像中的边缘。根据边缘检测参数（129），包括方向，各向异性和方差强度，该方法确定输出像素插值的覆盖区和频率响应。在更具体的实现中，该方法将输入像素空间划分为称为偏斜的有限数量的方向，并且以最近的倾斜方向估计边缘方向。这进一步有助于像素包含在输出像素的插值中。

2. 发明申请

WO2006031213A1 SINGLE -PASS IMAGE WARPING SYSTEM AND MEHTOD WITH ANISOTROPIC FILTERING 审中-公开
标题翻译：单幅图像翘曲系统和各向异性过滤器
公开(公告)号：WO2006031213A1
公开(公告)日：2006-03-23
申请号：PCT/US2004/029393
申请日：2004-09-09
申请人： SILICON OPTIX INC. , LACHINE, Vladimir , SMITH, Gregory, L. , LEE, Louie
发明人： LACHINE, Vladimir , SMITH, Gregory, L. , LEE, Louie
IPC分类号： G09G5/00
CPC分类号： G06T3/0093 , A61K48/00 , C07K14/60
摘要： A method and system for circularly symmetric anisotropic filtering over an extended elliptical or rectangular footprint in singlepass digital image warping are disclosed. The filtering is performed by first finding and adjusting an ellipse that approximates a non-uniform image scaling function in a mapped position of an output pixel in the input image space. A linear transformation from this ellipse to a unit circle in the output image space is determined to calculate input pixel radii inside the footprint and corresponding filter coefficient as a function of the radius. The shape of the footprint is determined as a trade-off between image quality and processing speed. In one implementation, profiles of smoothing and warping components are combined to produce sharper or detail enhanced output image. The method and system of the invention produce natural output image without jagging artifacts, while maintaining or enhancing the sharpness of theinput image.
摘要翻译：公开了一种用于在单一和害羞中扩展椭圆或矩形足迹上的圆对称各向异性滤波的方法和系统;通过数字图像变形。通过首先找到并调整近似输入图像空间中的输出像素的映射位置中的非均匀图像缩放函数的椭圆来执行滤波。确定从该椭圆到输出图像空间中的单位圆的线性变换，以计算足迹内的输入像素半径以及作为半径的函数的对应滤波器系数。占地面积的形状被确定为图像质量和处理速度之间的折衷。在一个实现中，平滑和翘曲分量的轮廓被组合以产生更清晰或细节增强的输出图像。本发明的方法和系统产生没有锯齿伪影的自然输出图像，同时保持或增强输入图像的清晰度。

3. 发明申请

WO2006062508A1 DYNAMIC WARP MAP GENERATION SYSTEM AND METHOD 审中-公开
标题翻译：动态地图生成系统和方法
公开(公告)号：WO2006062508A1
公开(公告)日：2006-06-15
申请号：PCT/US2004/040851
申请日：2004-12-07
申请人： SILICON OPTIX INC. , BASSI, Zorawar, S. , LEE, Louie , SMITH, Gregory, Lionel
发明人： BASSI, Zorawar, S. , LEE, Louie , SMITH, Gregory, Lionel
IPC分类号： G06T15/00 , G06T15/20 , G09G5/02 , G06K9/40 , G06K9/56 , G06K9/60
CPC分类号： G06T3/0093 , G06T5/006
摘要： Dynamic warp map generation system(fig.1) and corresponding method are disclosed. A compactor (110,fig.1) obtains spatial transformation parameters along with geometric and optical distortion parameters and combines them to form hybrid grid data in a hybrid vector space. This vector space is divided (114, fig.1) into hybrid blocks. In each hybrid block, the grid dataset is fitted with a hypersurface and the surface coefficients are saved in an interface. A decompactor(150,fig.1) obtains dynamic control parameters representing varying distortion parameters and generates a hybrid space vector. According to the hybrid space vector, a warp map is decoded (153,fig.1) from the hypersurface coefficients that compensates for dynamic geometric and optical distortions. In another example of the present invention, the dynamic warp map generation system is used for color gamut transformation.
摘要翻译：公开了动态经线图生成系统（图1）和相应的方法。压缩机（110，图1）获得空间变换参数以及几何和光学失真参数，并将它们组合以在混合矢量空间中形成混合网格数据。该矢量空间被划分为混合块（114，图1）。在每个混合块中，网格数据集配有超曲面，表面系数保存在界面中。解压缩器（150，图1）获得表示变化失真参数的动态控制参数并产生混合空间矢量。根据混合空间矢量，经线映射从补偿动态几何和光学失真的超表面系数解码（153，图1）。在本发明的另一示例中，动态经线图生成系统用于色域变换。

4. 发明申请

WO2003107663A1 SHORT THROW PROJECTION SYSTEM AND METHOD 审中-公开
标题翻译：短波投影系统和方法
公开(公告)号：WO2003107663A1
公开(公告)日：2003-12-24
申请号：PCT/CA2003/000889
申请日：2003-06-12
申请人： SILICON OPTIX INC. , BASSI, Zorawar, S. , SMITH, Gregory, Lionel , LEE, Louie
发明人： BASSI, Zorawar, S. , SMITH, Gregory, Lionel , LEE, Louie
IPC分类号： H04N5/74
CPC分类号： H04N9/3141 , H04N5/7408
摘要： A short throw projection system and method for displaying a corrected optical image on a projection screen based on input image data that includes an electronic correction unit, an image projector and a reflection assembly. The electronic correction unit receives the input image data and generates pre-distorted image data. The image projector receives the pre-distorted image data from the electronic correction unit and projects a pre-distorted optical image that corresponds to the pre-distorted image data or a predistorted image compensated by the projection optic distortion. The optical reflection assembly is positioned in the optical path of the pre-distorted optical image to project an optical image on the projection screen. The reflection assembly can consist of various combinations of curved and planar mirrors as desired. The electronic correction unit is encoded to pre-distort the geometry of the image represented by the image data such that when the pre-distorted optical image is projected through the image projector and reflected within the reflection assembly, the optical and geometric distortions associated with the image projector and the mirrors within the reflection assembly are eliminated in the displayed optical image.
摘要翻译：一种短投影投影系统和方法，用于基于包括电子校正单元，图像投影仪和反射组件的输入图像数据在投影屏幕上显示校正的光学图像。电子校正单元接收输入图像数据并产生预失真图像数据。图像投影仪从电子校正单元接收预失真的图像数据，并投影与预失真图像数据相对应的预失真光学图像或通过投影光学失真补偿的预失真图像。光学反射组件位于预失真的光学图像的光路中，以投影投影屏幕上的光学图像。反射组件可以根据需要由弯曲和平面镜的各种组合组成。对电子校正单元进行编码以对由图像数据表示的图像的几何形状进行预变形，使得当预失真的光学图像通过图像投影仪投影并在反射组件内反射时，与...相关联的光学和几何失真在所显示的光学图像中消除了图像投影仪和反射组件内的反射镜。

5. 发明申请

WO2003001449A2 METHOD AND SYSTEM FOR PROCESSING TWO-DIMENSIONAL IMAGE DATA 审中-公开
标题翻译：用于处理二维图像数据的方法和系统
公开(公告)号：WO2003001449A2
公开(公告)日：2003-01-03
申请号：PCT/CA2002/000856
申请日：2002-06-11
申请人： SILICON OPTIX INC. , LEE, Louie , CANDLER, Frederick Christopher
发明人： LEE, Louie , CANDLER, Frederick Christopher
IPC分类号： G06T1/60
CPC分类号： G06T1/60
摘要： An image data processing method and system receives image data from a burst memory buffer and provides output image data to a vertical filter for filtering. The method determines whether a new frame of input image data has been received, said frame of data having a plurality of blocks, each block having a plurality of rows and columns. A vertical input buffer uses a read pointer, an oldest unused data pointer, and a write pointer to keep track of the data that is being read and stored Data is read and stored into said vertical input buffer by determining the minimum offset for the block, reading a row of input buffer by determining the minimum offset for the block, reading a row of input image data from the burst memory buffer and skipping the row depending on the minimum offset until minimum offset reached, and storing the row of input image data in said vertical input buffer for processing by the vertical filter until the buffer is full. If the entire frame has been processed then the pointers are all reset. If an entire column in the output image has been processed then the column data is flushed. In another embodiment, a low latency mode is adopted such that it is not necessary for the columns to be completely processed before switching to the next column horizontally.
摘要翻译：图像数据处理方法和系统从突发存储器缓冲器接收图像数据，并将输出图像数据提供给用于滤波的垂直滤波器。该方法确定是否已经接收到输入图像数据的新帧，所述数据帧具有多个块，每个块具有多个行和列。垂直输入缓冲器使用读指针，最旧的未使用数据指针和写指针来跟踪正在读取和存储的数据通过确定块的最小偏移来读取数据并将其存储到所述垂直输入缓冲器中，通过确定块的最小偏移来读取一行输入缓冲器，从突发存储器缓冲器读取一行输入图像数据，并根据最小偏移量跳过该行直到达到最小偏移量，并将输入图像数据行存储在所述垂直输入缓冲器由垂直滤波器处理直到缓冲器满。如果整个帧已被处理，则指针全部被复位。如果输出图像中的整列已被处理，则列数据被刷新。在另一个实施例中，采用低等待时间模式，使得在将水平切换到下一列之前不需要对列进行完全处理。

6. 发明申请

WO2006022630A1 PANORAMIC VISION SYSTEM AND METHOD 审中-公开
标题翻译：全景视觉系统与方法
公开(公告)号：WO2006022630A1
公开(公告)日：2006-03-02
申请号：PCT/US2004/023849
申请日：2004-07-26
申请人： SILICON OPTIX, INC. , LEE, Louie , VAKILI, Masoud
发明人： LEE, Louie , VAKILI, Masoud
IPC分类号： G06K9/36
CPC分类号： B60R1/00 , B60R2300/102 , B60R2300/105 , B60R2300/302 , B60R2300/303 , B60R2300/306 , B60R2300/402 , B60R2300/607 , B60R2300/70 , B60R2300/802 , B60R2300/8053 , B60R2300/8066 , G06T3/4038 , G06T5/006 , G06T5/009 , G06T5/40 , G06T7/30 , H04N5/23232 , H04N5/23238 , H04N5/3572
摘要： A distortion corrected panoramic vision system and method provides a visually correct composite image acquired through wide angle optics and projected onto a viewing surface. The system uses image acquisition devices to capture a scene up to 360° or 4π steradians broad. An image processor corrects for luminance or chrominance non-uniformity and applies a spatial transform to each image frame. The spatial transform is convolved by concatenating the viewing transform, acquisition geometry and optical distortion transform, and display geometry and optical transform. The distortion corrections are applied separately for red, green, and blue components to eliminate lateral color aberrations of the optics. A display system is then used to display the resulting composite image on a display device which is then projected through the projection optics and onto a viewing surface. The resulting image is visibly distortion free and matches the characteristics of the viewing surface.
摘要翻译：畸变校正的全景视觉系统和方法提供通过广角光学获得的视觉上正确的合成图像并投影到观察表面上。该系统使用图像采集设备来捕获宽达360°或4p立体声的场景。图像

7. 发明申请

WO2003107274A3 SYSTEM AND METHOD FOR ELECTRONIC CORRECTION OF OPTICAL ANOMALIES 审中-公开
公开(公告)号：WO2003107274A3
公开(公告)日：2003-12-24
申请号：PCT/CA2003/000888
申请日：2003-06-12
申请人： SILICON OPTIX INC. , BASSI, Zorawar, S. , LEE, Louie , RAMACHANDRAN, Gopal
发明人： BASSI, Zorawar, S. , LEE, Louie , RAMACHANDRAN, Gopal
IPC分类号： G06T5/00
摘要： An electronic correction system and method for correcting optical anomalies, namely distortions, color non-convergence (excluding axial chromatic aberration) and luminance (or chrominance) non-uniformity. Each effect is modeled as a transformation in either spatial (positional) space or color space. Representing the effects as transformations of digital pixel data, allows the different anomalies to be resolved within a common framework, namely that of image ‘warping’. The anomaly, having been expressed as a pixel transformation, is then eliminated by electronically applying the inverse transformation. This process is equivalent to digitally manipulating or warping the image in position and/or color space and accordingly this can be achieved using commercially known warping circuits. In addition, the transformation can also contain a component to additionally perform any application specific image warping (e.g. scaling and geometric transformations). Finally, by storing a sequence of transformations, adaptive anomaly correction and dynamic effects can be achieved.

8. 发明申请

WO2011011542A1 A METHOD AND SYSTEM FOR DETECTION AND ENHANCEMENT OF VIDEO IMAGES 审中-公开
标题翻译：一种用于视频图像检测和增强的方法和系统
公开(公告)号：WO2011011542A1
公开(公告)日：2011-01-27
申请号：PCT/US2010/042790
申请日：2010-07-21
申请人： INTEGRATED DEVICE TECHNOLOGY, INC. , LEE, Louie , LACHINE, Vladimir , SMITH, Greg
发明人： LEE, Louie , LACHINE, Vladimir , SMITH, Greg
IPC分类号： G06K9/00
CPC分类号： H04N9/646 , G06T5/00 , G06T7/0002 , G06T2207/30168 , H04N5/205 , H04N5/208 , H04N5/21 , H04N7/0145
摘要： A method and a system for adaptive image enhancement are provided for measuring the image quality of a pixel region in a frame, performing an image classification based on the image quality measurement, and enhancing image quality by applying operations according to image classification of the region. Also provided is a method as above including the steps of dividing a frame into P pixel regions; and for each one of the pixel regions measuring the image quality; assigning an image quality class; and enhancing the image. Also provided is a system for adaptive image enhancement including a circuit to measure the image quality of a pixel region in a frame in a source video image; a circuit to perform an image classification of the region based on the image quality measurement; and a circuit to enhance the image quality of the region in the source video image a by applying operations based on the image classification of the frame.
摘要翻译：提供一种用于自适应图像增强的方法和系统，用于测量帧中的像素区域的图像质量，基于图像质量测量执行图像分类，并且通过根据该区域的图像分类应用操作来提高图像质量。还提供了如上所述的方法，包括以下步骤：将帧分割成P个像素区域; 并且对于测量图像质量的每个像素区域; 分配图像质量等级; 并增强形象。还提供了一种用于自适应图像增强的系统，其包括用于测量源视频图像中的帧中的像素区域的图像质量的电路; 基于图像质量测量执行区域的图像分类的电路; 以及通过基于帧的图像分类的操作来增强源视频图像a中的区域的图像质量的电路。

9. 发明申请

WO2002101650A2 METHOD AND SYSTEM FOR PROCESSING A NON-LINEAR TWO DIMENSIONAL SPATIAL TRANSFORMATION 审中-公开
标题翻译：用于处理非线性二维空间变换的方法和系统
公开(公告)号：WO2002101650A2
公开(公告)日：2002-12-19
申请号：PCT/CA2002/000869
申请日：2002-06-12
申请人： SILICON OPTIX INC. , JASA, Tomislav , BASSI, Zorawar, S. , LEE, Louie
发明人： JASA, Tomislav , BASSI, Zorawar, S. , LEE, Louie
IPC分类号： G06T5/00
CPC分类号： G06T5/006
摘要： An image transformation method for translating a non-linear 2D geometrical transformation into two separable 1D geometrical transformations first determines the inverse of the 2D geometrical transformation to form an inverse 2D geometrical transformation. Then the method converts the inverse 2D geometrical transformation into an analytical inverted 2D geometrical transformation and separates the analytical inverse 2D geometrical transformation into first and second 1D geometrical transformations. The method then represents said inverse 2D geometrical transformation and first and second 1D geometrical transformations as tensor spline surfaces and then compares an evaluation of said first and second 1D geometrical transformations at each pixel with an evaluation of the analytical inverse 2D geometrical transformation at each pixel. If the error evaluation does not meet a predetermined level of performance then the separation and transformation steps are repeated. Since the method involves one-dimensional spatial transform processing it results in reduced calculation, efficient memory access, and ability to process data in a real-time environment. In-addition, since the method provides a compact representation of the spatial transforms, it can be scaled for a particular level of precision.
摘要翻译：用于将非线性2D几何变换转换成两个可分离的1D几何变换的图像变换方法首先确定2D几何变换的反向以形成反二维几何变换。然后，该方法将逆二维几何变换转换为分析反向二维几何变换，并将分析反向二维几何变换分解为第一和第二1D几何变换。然后，该方法表示所述逆2D几何变换以及作为张量样条曲面的第一和第二1D几何变换，然后将每个像素处的所述第一和第二1D几何变换的评估与每个像素处的分析反2D几何变换的评估进行比较。如果误差评估不满足预定的性能水平，则重复分离和转换步骤。由于该方法涉及一维空间变换处理，因此可减少计算，高效的存储器访问以及在实时环境中处理数据的能力。另外，由于该方法提供了空间变换的紧凑表示，所以可以对特定的精度进行缩放。

10. 发明申请

WO2002101443A2 SYSTEM AND METHOD FOR CORRECTING MULTIPLE AXIS DISPLACEMENT DISTORTION 审中-公开
标题翻译：用于校正多个轴位移误差的系统和方法
公开(公告)号：WO2002101443A2
公开(公告)日：2002-12-19
申请号：PCT/CA2002/000870
申请日：2002-06-12
申请人： SILICON OPTIX INC. , KARUTA, Bonaventure , LEE, Louie
发明人： KARUTA, Bonaventure , LEE, Louie
IPC分类号： G02B27/00
CPC分类号： G06T5/006 , G02B27/0025 , G03B27/68 , G06T3/00 , G06T2207/20021 , H04N5/74 , H04N9/3185 , H04N9/3194
摘要： A system and method for correcting distortion in projected images caused by the projection of an input image by a projector lens onto a projection screen having a surface that is not orthogonal to the projection axis of the projector. Projection parameters including the focal length of the projector lens and the angles that represent the pan, tilt and roll angle of the projector are obtained. Then the projected area and the best viewable rectangular area that fits within said projected area is determined. The distortion is then characterized by using a distortion transformation which corresponds to the transformation that exists between the vertices of the best viewable rectangular area and the corresponding vertices of the projected area. Finally, the distortion transformation is inverted and applied to input image to obtain a distortion free projected image.
摘要翻译：一种用于校正由投影仪透镜将输入图像投影到具有不与投影仪的投影轴正交的表面的投影屏幕上的投影图像中的失真的系统和方法。获得投影参数，包括投影镜头的焦距和投影机的平移，倾斜和滚动角度的角度。然后确定投影区域和适合于所述投影区域内的最佳可视矩形区域。然后通过使用对应于存在于最佳可视矩形区域的顶点与投影区域的对应顶点之间的变换的失真变换来表征失真。最后，将失真变换反转并应用于输入图像，以获得无失真的投影图像。

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