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    • 3. 发明授权
    • Method and system for compressing and statistically encoding color video
data
    • 用于压缩和统计编码彩色视频数据的方法和系统
    • US4914508A
    • 1990-04-03
    • US186637
    • 1988-04-27
    • John MusicGordon H. SmithJames L. Thomas
    • John MusicGordon H. SmithJames L. Thomas
    • G06T9/00H04N7/26H04N7/32H04N11/04
    • H04N11/042H04N19/00H04N19/93
    • The method and system of compressing digital color video data in a video communication system utilizes a digital color video signal having three video color components, and the encoding of the color components as compressed color codes in a series of run length and compressed color code combinations. A look up table of compressed color codes representing the most visually significant combinations of three color components may also be modified by a process which involves the determination of a predetermined number of the most visually significant combinations of color components in a picture frame. Line-to-line differences and movement of edges and segments of the picture frames are determined, and frame-to-frame differences are also encoded to reduce the amount of information to a minimum. Further statistical encoding of at least a portion of the run length and color code combinations is also provided.
    • 在视频通信系统中压缩数字彩色视频数据的方法和系统利用具有三个视频颜色分量的数字彩色视频信号,以及一系列游程长度和压缩色码组合中的彩色分量作为压缩色码的编码。 表示三个颜色分量的视觉上有意义的最重要的组合的压缩颜色代码的查找表也可以通过涉及确定图像帧中的颜色分量的预定数量的最视觉上有意义的组合的处理来修改。 确定了画面帧的边缘和段的行间差异和移动,同时编码帧到帧的差异以将信息量减少到最小。 还提供了游程长度和颜色代码组合的至少一部分的进一步统计编码。
    • 4. 发明授权
    • Method and system for decompressing color video feature encoded data
    • 解压缩彩色视频特征编码数据的方法和系统
    • US4857991A
    • 1989-08-15
    • US186574
    • 1988-04-27
    • John MusicGordon H. SmithJames L. Thomas
    • John MusicGordon H. SmithJames L. Thomas
    • G06T9/00H04N7/32H04N11/04
    • H04N11/042H04N19/93
    • The method and system of decompressing color video data for use in a video information communication system utilizes digitized run length and color information to represent the pixels in the scan lines of a video picture frame. The digitized signals are of a first digital word size, the run length portion of the digitized signal is of a second digital word size and the color portion of the digitized signal is of a third digital word size. The run length portion and three digital color components data are stored in an array in a memory to represent the pixels in the scan lines of the video picture frame; and the color portion of the digitized signal is converted into three digital color components of fourth, fifth, and sixth digital word sizes. The memory consists of a pingpong A buffer memory and a pingpong B buffer memory, from which the run length and color information is transferred to a display drawing engine which generates a series of converted digital color components representing individual pixels, which is then converted to analog form for display on a monitor.
    • 用于视频信息通信系统的解压缩彩色视频数据的方法和系统利用数字化游程长度和颜色信息来表示视频图像帧的扫描行中的像素。 数字化信号是第一数字字大小,数字化信号的游程长度部分是第二数字字大小,数字化信号的彩色部分是第三数字字大小。 游程长度部分和三个数字颜色分量数据以阵列的形式存储在存储器中,以表示视频图像帧的扫描线中的像素; 并且数字化信号的颜色部分被转换成第四,第五和第六数字字尺寸的三个数字颜色分量。 存储器由乒乓A缓冲存储器和乒乓B缓冲存储器组成,运行长度和颜色信息从该缓冲存储器和彩色信息传送到显示绘图引擎,显示绘图引擎生成代表各个像素的一系列转换的数字颜色分量,然后将其转换为模拟 在显示器上显示的表格。