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    • 2. 发明授权
    • Drawing method, image generating device, and electronic information apparatus
    • 绘图方法,图像生成装置和电子信息装置
    • US07884825B2
    • 2011-02-08
    • US11813753
    • 2005-10-21
    • Teruyuki NakahashiTanio NagasakiMinoru Takahata
    • Teruyuki NakahashiTanio NagasakiMinoru Takahata
    • G06T11/20
    • G06T11/203
    • An edge function is computed from two vertex coordinates given by a rendering target line. Gradient determination is then performed on the edge function, and the functions representing two shift lines that are formed by translating the rendering target line in the y-axis direction or x-axis direction depending on the angle formed by the rendering target line and the x-axis of the rendering plane coordinate system by 0.5d and −0.5d will be computed, where d denotes the width of one pixel. Then, the number of subpixels included in a parallelogram, which has four points of the starting points and ending points of the two shift lines as vertices, is acquired so as to determine the pixel value of each pixel based on the number.
    • 边缘函数由渲染目标线给出的两个顶点坐标计算。 然后对边缘功能执行梯度确定,并且表示通过根据由渲染目标线和x形成的角度在y轴方向或x轴方向上平移渲染目标线而形成的两个移动线的功能 将渲染平面坐标系的坐标系为0.5d和-0.5d,其中d表示一个像素的宽度。 然后,获取包括在平行四边形中的具有作为顶点的两个移动线的起始点和终点的四个点的子像素的数量,以便基于该数量来确定每个像素的像素值。
    • 3. 发明授权
    • Drawing processing apparatus and method for compressing drawing data
    • 用于压缩绘图数据的绘图处理装置和方法
    • US07609263B2
    • 2009-10-27
    • US11348523
    • 2006-02-06
    • Tanio NagasakiTeruyuki NakahashiMinoru TakahataYasuhiro Moriyama
    • Tanio NagasakiTeruyuki NakahashiMinoru TakahataYasuhiro Moriyama
    • G09G5/00
    • G06T11/40G06T9/001H04N19/93
    • A drawing processing apparatus is provided to solve the problems in which pixels of a drawing primitive with sub-pixel information may have an increased amount of data causing a burden on implementation. A setup processing unit sets up various parameters to allow a digital differential analyzer (DDA) to process the stream of a drawing primitive supplied from a primitive input unit. The DDA performs DDA processing on the drawing primitive supplied from the setup processing unit for conversion into pixel data. The DDA performs the DDA processing on a per rectangular pixel set basis along a scan line to output the pixel data of the drawing primitive on a per rectangular pixel set basis. A compression encoding unit encodes the sub-pixel information of each pixel contained in the rectangular pixel set by run length encoding for output to a FIFO buffer.
    • 提供了一种绘图处理装置,以解决具有子像素信息的绘制图元的像素可能具有增加的数据量导致实现负担的问题。 设置处理单元设置各种参数以允许数字差分分析器(DDA)处理从原始输入单元提供的绘图图元的流。 DDA对从设置处理单元提供的绘图图元进行DDA处理,以转换成像素数据。 DDA根据扫描线在每个矩形像素集上执行DDA处理,以基于矩形像素集输出绘图图元的像素数据。 压缩编码单元通过游程长度编码对包含在矩形像素组中的每个像素的子像素信息进行编码,以输出到FIFO缓冲器。
    • 4. 发明申请
    • Drawing Method, Image Generating Device, And Electronic Information Apparatus
    • 绘图方法,图像产生装置和电子信息装置
    • US20080198163A1
    • 2008-08-21
    • US11813753
    • 2005-10-21
    • Teruyuki NakahashiTanio NagasakiMinoru Takahata
    • Teruyuki NakahashiTanio NagasakiMinoru Takahata
    • G06T11/20
    • G06T11/203
    • An edge function is computed from two vertex coordinates given by a rendering target line 66 as shown in FIG. 8. Gradient determination is then performed on the edge function, and if the acute angle formed by the rendering target line 66 and the x-axis of the rendering plane coordinate system is 45 degrees or less, the functions representing two shift lines 68 that are formed by translating the rendering target line 66 in the y-axis direction by 0.5d and −0.5d will be computed, where d denotes the width of one pixel. If, on the other hand, the acute angle formed by the rendering target line 66 and the y-axis of the rendering plane coordinate system is more than 45 degrees, the functions representing two shift lines that are formed by translating the rendering target line 66 in the x-axis direction by 0.5d and −0.5d will be computed. Then, the number of subpixels included in a parallelogram abcd, which has four points of the starting points and ending points of the two shift lines 68 as vertices, is acquired so as to determine the pixel value of each pixel based on the number.
    • 由渲染目标线66给出的两个顶点坐标计算边缘函数,如图3所示。 8。 然后对边缘功能进行梯度确定,如果由渲染目标线66和渲染平面坐标系的x轴形成的锐角为45度以下,则表示两个换挡线68的功能由 将渲染目标线66在y轴方向上平移0.5d和-0.5d,其中d表示一个像素的宽度。 另一方面,如果渲染目标线66和渲染平面坐标系的y轴所形成的锐角大于45度,则表示通过平移渲染目标线66形成的两个移动线的功能 将在x轴方向上计算0.5d和-0.5d。 然后,获取包括在平行四边形abcd中的具有作为顶点的两个移位线68的起始点和终点的四个点的子像素的数量,以便基于该数量来确定每个像素的像素值。
    • 5. 发明授权
    • Image processing apparatus and method of same
    • 图像处理装置及其方法
    • US07280121B2
    • 2007-10-09
    • US10947985
    • 2004-09-23
    • Teruyuki NakahashiOsamu WatanabeTanio NagasakiTetsugo InadaYasuhiro MoriyamaHideshi Yamada
    • Teruyuki NakahashiOsamu WatanabeTanio NagasakiTetsugo InadaYasuhiro MoriyamaHideshi Yamada
    • G09G5/00
    • G06T15/503G06T11/203G06T2200/12
    • An image processing apparatus capable of realizing accurate anti-aliasing with a small memory, without being affected by the order of drawing, and without inducing a drop in the drawing speed, including an anti-aliasing system obtaining edge information from an image after drawing, determining a processing content necessary for the anti-aliasing, and performing the determined processing. Specifically, either of the information of a z-buffer and the information of the normal vector at each pixel obtained at the time of drawing, or both information, is scanned or by the information of normal vectors restored from the information of the z-buffer is used, a state machine for holding the state and a counter for measuring the continuity of an edge are prescribed, the value of which pixel adjacent in which direction to each pixel on each edge and what kind of ratio to use for blending are determined, and the determined values are used for blending. This is performed successively until the pixel values are updated.
    • 一种图像处理装置,其能够在不受绘图顺序的影响的情况下实现具有小存储器的精确抗锯齿,并且不引起绘图速度的下降,包括从绘图后的图像获取边缘信息的抗混叠系统, 确定抗混叠所需的处理内容,并执行确定的处理。 具体而言,扫描z缓冲器的信息和绘制时获得的每个像素处的法线矢量的信息,或者两个信息,或从z缓冲器的信息中恢复的法向矢量的信息 ,规定用于保持状态的状态机和用于测量边缘的连续性的计数器,确定与每个边缘上的每个像素在哪个方向上相邻的像素的值以及用于混合的种类的比例的值, 并且将所确定的值用于混合。 这是连续执行直到像素值被更新。
    • 6. 发明申请
    • Image processing apparatus and method of same
    • 图像处理装置及其方法
    • US20050068333A1
    • 2005-03-31
    • US10947985
    • 2004-09-23
    • Teruyuki NakahashiOsamu WatanabeTanio NagasakiTetsugo InadaYasuhiro MoriyamaHideshi Yamada
    • Teruyuki NakahashiOsamu WatanabeTanio NagasakiTetsugo InadaYasuhiro MoriyamaHideshi Yamada
    • G06T11/00G06T15/00G06T17/20G06F15/167G09G5/00
    • G06T15/503G06T11/203G06T2200/12
    • An image processing apparatus capable of realizing accurate anti-aliasing with a small memory, without being affected by the order of drawing, and without inducing a drop in the drawing speed, including an anti-aliasing system obtaining edge information from an image after drawing, determining a processing content necessary for the anti-aliasing, and performing the determined processing. Specifically, either of the information of a z-buffer and the information of the normal vector at each pixel obtained at the time of drawing, or both information, is scanned or by the information of normal vectors restored from the information of the z-buffer is used, a state machine for holding the state and a counter for measuring the continuity of an edge are prescribed, the value of which pixel adjacent in which direction to each pixel on each edge and what kind of ratio to use for blending are determined, and the determined values are used for blending. This is performed successively until the pixel values are updated.
    • 一种图像处理装置,其能够在不受绘图顺序的影响的情况下实现具有小存储器的精确抗锯齿,并且不引起绘图速度的下降,包括从绘图后的图像获取边缘信息的抗混叠系统, 确定抗混叠所需的处理内容,并执行确定的处理。 具体而言,扫描z缓冲器的信息和绘制时获得的每个像素处的法线矢量的信息,或者两个信息,或从z缓冲器的信息中恢复的法向矢量的信息 ,规定用于保持状态的状态机和用于测量边缘的连续性的计数器,确定与每个边缘上的每个像素在哪个方向上相邻的像素的值以及用于混合的种类的比例的值, 并且将所确定的值用于混合。 这是连续执行直到像素值被更新。
    • 8. 发明授权
    • Image converting apparatus and image converting method
    • 图像转换装置和图像转换方法
    • US06181384B2
    • 2001-01-30
    • US09055159
    • 1998-04-03
    • Masafumi KurashigeOsamu WatanabeKazumasa ItoTeruyuki NakahashiYuichi Hayatsu
    • Masafumi KurashigeOsamu WatanabeKazumasa ItoTeruyuki NakahashiYuichi Hayatsu
    • G06F1900
    • H04N9/67G06T11/001H04N1/60
    • An image converting apparatus for converting an image of an input video signal into an image with a metallic luster and representing the metallic luster with parameters designated corresponding to the input image. The apparatus is based on the concept that a model of reflected light can represented with a model of reflected light of diffusion reflection and mirror-surface reflection and that even though the resultant model of reflected light is three-dimensional data, assuming that the brightness of an input video signal linearly varies, the model can be represented with brightness data. A color correction circuit 5 has a look-up table with which calculations for generating an image with a metallic luster are performed with the brightness data and the designated parameters. A matrix calculating circuit extracts a luminous signal component from the input video signal. A pre-modifying circuit adjusts the amplitude. The color correction circuit performs calculations for generating an image with a metallic luster. Mix circuits mix output signals of the color correction circuit with an input video signal.
    • 一种图像转换装置,用于将输入视频信号的图像转换成具有金属光泽的图像,并且用与输入图像对应的参数指定金属光泽。 该装置基于以反射光的模型可以用扩散反射和镜面反射的反射光的模型表示的概念,并且即使所得到的反射光的模型是三维数据,假设亮度 输入视频信号线性变化,模型可以用亮度数据表示。 颜色校正电路5具有查找表,利用亮度数据和指定参数来执行用于产生具有金属光泽的图像的计算。 矩阵计算电路从输入视频信号中提取发光信号分量。 预调节电路调节振幅。 颜色校正电路执行用金属光泽产生图像的计算。 混合电路将颜色校正电路的输出信号与输入视频信号混合。