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    • 32. 发明申请
    • SIMULTANEOUS THREE-DIMENSIONAL GEOMETRY AND COLOR TEXTURE ACQUISITION USING SINGLE COLOR CAMERA
    • 使用单色相机同时进行三维几何采集和彩色纹理采集
    • US20100207938A1
    • 2010-08-19
    • US12388301
    • 2009-02-18
    • SHING-TUNG YAUSong ZhangXiangfeng Gu
    • SHING-TUNG YAUSong ZhangXiangfeng Gu
    • G06T15/00H04N5/335G09G5/02G09G5/00
    • G01B11/2513G06T1/0007G06T7/521
    • A system for simultaneous real-time three-dimensional geometry and color texture acquisition. The system includes a system processor for generating at least three phase shifted black and white fringe patterns with a phase shift of 2 π/3, a light projector adapted to project the fringe patterns onto an object, the projector being electrically connected with the system processor, and a color camera for capturing the fringe patterns to generate at least three raw fringe images. The fringe images are used to calculate a black and white texture image which is further converted to a color image by employing a demosaicing algorithm. The fringe images are also used to calculate a wrapped phase map that is further processed to generate a continuous unwrapped phase map by employing a phase unwrapping algorithm and the unwrapped phase map is converted to co-ordinates using calibrated system parameters for point-by-point three-dimensional shape measurement.
    • 一种用于同时实时三维几何和颜色纹理采集的系统。 该系统包括一个系统处理器,用于产生相移为2&pgr / / 3的至少三个相移的黑白条纹图案,适用于将条纹图案投射到物体上的投影仪,投影仪与系统电连接 处理器和用于捕获条纹图案的彩色照相机以产生至少三个原始条纹图像。 边缘图像用于计算黑白纹理图像,其通过采用去马赛克算法进一步转换成彩色图像。 边缘图像还用于计算被包围的相位图,其被进一步处理以通过采用相位展开算法产生连续的展开相位图,并且使用校准的系统参数逐点地将展开的相位图转换为坐标 三维形状测量。
    • 36. 发明授权
    • Fast carry-sum form booth encoder
    • 快速携带和表格编码器
    • US5944776A
    • 1999-08-31
    • US720118
    • 1996-09-27
    • Song ZhangBassam J. Mohd
    • Song ZhangBassam J. Mohd
    • G06F7/52G06F7/552
    • G06F7/5336G06F7/5338G06F7/535G06F7/5525G06F2207/5355
    • A fast carry-sum form Booth encoder is used in a multiplicative divider to iteratively multiply one number by a series of numbers to produce the result of a divide or square root operation. The fast Booth encoder inputs a binary sum and a binary carry row representing the first number. The encoder adds the two numbers and at the same time Booth-encodes the result and outputs this result to a partial product generator to be combined with one of the series of numbers. Included in the fast Booth encoder are a multiplicity of interconnected logic cells. Each logic cell receives a number of distinct sequential bits from each of the binary sum and carry rows. The sequential bits from one binary number correspond to sequential bits in the other binary number. Each cell then produces an associated cell output. Each logic cell includes a carry bit generator for producing a number of carry bits to transmit to a next interconnected logic cell. Each cell also has an output generator for producing the cell output associated with the logic cell. Together, the cell outputs produced by each logic cell are at least a portion of a Booth encoded form of the sum of the pair of binary numbers. The logic is optimized so that a carry ripple passes through no more than two of the logic cells before being output, so that a carry ripple through all of the logic cells is avoided.
    • 快速进位和形式布乘编码器用于乘法分频器,以一个数字迭代乘以一系列数字,以产生除法或平方根运算的结果。 快速Booth编码器输入二进制和和表示第一个数字的二进制进位行。 编码器将两个数字相加,同时对结果进行Booth编码,并将该结果输出到部分乘积生成器,以与一系列数字组合。 包括在快速Booth编码器中的是多个互连的逻辑单元。 每个逻辑单元从二进制和和进位行中的每一个接收多个不同的顺序位。 一个二进制数的顺序位对应于另一个二进制数的顺序位。 然后,每个单元产生相关的单元输出。 每个逻辑单元包括进位位发生器,用于产生多个进位位以发送给下一个互连的逻辑单元。 每个单元还具有用于产生与逻辑单元相关联的单元输出的输出发生器。 由每个逻辑单元产生的单元输出一起是一对二进制数之和的Booth编码形式的至少一部分。 逻辑被优化,使得进位纹波在输出之前不超过两个逻辑单元,从而避免了通过所有逻辑单元的进位纹波。