英语翻译If every point of the brightness pattern can move independently,there is little hope of recovering the velocities.More commonly we view opaque objects of finite sizeundergoing rigid motion or deformation.In this case neighboring points on

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英语翻译Ifeverypointofthebrightnesspatterncanmoveindependently,thereislittlehopeofrecoveringthevelocitie

英语翻译If every point of the brightness pattern can move independently,there is little hope of recovering the velocities.More commonly we view opaque objects of finite sizeundergoing rigid motion or deformation.In this case neighboring points on
英语翻译
If every point of the brightness pattern can move independently,there is little hope of recovering the velocities.More commonly we view opaque objects of finite size
undergoing rigid motion or deformation.In this case neighboring points on the
objects have similar velocities and the velocity field of the brightness patterns
in the image varies smoothly almost everywhere.Discontinuities in flow can be expected where one object occludes another.An algorithm based on a smoothness
constraint is likely to have difficulties with occluding edges as a result.
One way to express the additional constraint is to minimize the square of the magnitude of the gradient of the optical flow velocity:
Another measure of the smoothness of the optical flow field is the sum of the squares of the Laplacians of the X- and y-components of the flow.The Laplacians of u and v are defined as
In simple situations,both Laplacians are zero.If the viewer translates parallel
to a flat object,rotates about a line perpendicular to the surface or travels
orthogonally to the surface,then the second partial derivatives of both u and v
vanish (assuming perspective projection in the image formation).
We will use here the square of the magnitude of the gradient as smoothness
measure.Note that our approach is in contrast with that of Fennema and
Thompson [5],who propose an algorithm that incorporates additional assump-
tions such as constant flow velocities within discrete regions of the image.Their
method,based on cluster analysis,cannot deal with rotating objects,since these
give rise to a continuum of flow velocities.

英语翻译If every point of the brightness pattern can move independently,there is little hope of recovering the velocities.More commonly we view opaque objects of finite sizeundergoing rigid motion or deformation.In this case neighboring points on
如果亮度模式的每一点都可以独立地移动,有没有希望恢复速度.通常我们认为有限尺寸的不透明的物体
经历刚体运动或变形.在这种情况下的邻点
对象具有相似的速度和亮度图案的速度场
在图像的平滑变化几乎无处不在.不连续性的流量可以预计,在哪里一个对象的阻塞.一种基于平滑算法
约束可能遮挡边缘由于困难.
表达附加约束的方法之一是减少对光学流速梯度幅值的平方：
对光流场的平整度的另一措施是对X -拉普拉斯算子的平方和的流量y分量.U和V的拉普拉斯算子定义为
在简单的情况下,两个拉普拉斯算子是零.如果观众转换并行
一个平面物体,绕垂直于表面的线或旅行
垂直于表面,然后u和v的二阶偏导数
消失（假设透视投影的图像形成）.
我们将在这里使用的梯度的大小为平滑的方
测量.请注意,我们的方法是,介绍和对比
汤普森[ 5 ],他提出了一个算法,采用额外的假设—
tions如恒流速度的图像的离散区域内.他们的
方法,基于聚类分析,不能处理旋转对象,因为这些
产生一个连续的流动速度.

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如果每一点的亮度模式可以独立地移动,几乎没有希望恢复的速度。通常我们认为的不透明物体的全尺寸
刚性或变形。在这种情况下邻近点
对象也有类似的速度和速度场的亮度模式
在图像变化几乎到处都顺利。在可以预期的间断流动,一个对象occludes另一个。一个算法基于平滑
约束很可能有困难与阻塞边缘结果。
一个方式来表达附加约束最小平方大小的梯度光流速度:
另一个衡量光滑的光流场的平方和的Laplacians X和y组件的流。这个Laplacians u和v被定义为
在简单的情况下,两Laplacians是零。如果观众将平行
到一个平面物体,旋转一个线垂直于表面或旅行
与表面,然后第二次偏导数都u和v
消失(假设透视投影的图像形成)。
我们将使用这里的平级的梯度作为平滑
测量。请注意,我们的方法是在对比与Fennema和
汤普森[5],他提出一个算法,包含额外的assump -
其如恒流速度离散区域内的图像。他们
方法,基于聚类分析,不能处理旋转对象,因为这些
产生一个连续的流动速度。

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如果亮度模式的每一点都可以独立地移动，有没有希望恢复速度。通常我们认为有限sizeundergoing刚体运动或变形的不透明的物体。在这种情况下，相邻的点对象有相似的速度和亮度图案的速度场的图像平滑变化几乎无处不在。不连续性的流量可以预计，在哪里一个对象的阻塞。一种基于平滑约束的算法可能遮挡边缘由于困难。表达附加约束的方法之一是减少对光学流速梯度幅值的平方：对光流场的平整度的另一措施是对X -拉普拉斯算子的平方和的流量y分量。U和V的拉普拉斯算子是在简单的情况下定义的，两个拉普拉斯算子是零。如果观众将平行的一个平面物体，绕垂直于表面的线或是垂直于表面，然后在第二部分衍生物的U和V消失（假设透视投影的图像形成）。我们将在这里使用的梯度的大小为平滑测量方。请注意，我们的方法是，介绍和汤普森[ 5 ]对比，谁提出了一个算法，采用额外的假设，如恒流速度的图像的离散区域内。他们的方法，基于聚类分析，不能处理旋转对象，因为这些会引起血流速度连续。

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point英语翻译【GRE数学】In the figure above,if Point T is 6cm from every point on arc PQ and from every poiIn the figure above, if Point T is 6cm from every point on arc PQ and from every point on arc RS, what is the sum of the ares, in cm^2, of reagion PQT a 英语翻译If every point of the brightness pattern can move independently,there is little hope of recovering the velocities.More commonly we view opaque objects of finite sizeundergoing rigid motion or deformation.In this case neighboring points on 英语翻译on the number line,point p has coordinate 1/2,and point Q has coordinate 2.if . 英语翻译if f'(x) is not zero,the point is a non-stationary point of inflection.如何翻译? point at的英语翻译英语翻译The vertical line test to determine whethera curve is the graph of a function states:If every vertical line inthe ry-plane intersects a given curve in at most one point,thenthe curve is the graph of a function.Explain why this is true.大 If we exerxise every 英语翻译var p = Math.random();var xv = Math.random();var yv = Math.random();onEnterFrame = function (){if (p < 5.000000E-001){point._x = point._x + xv;}else{point._x = point._x - xv;} // end else ifpoint._y = point._y + 2 * yv;};全文应该是 where/if it comes to the point 英语翻译用point out作英语翻译point-of-purchase displays, 英语翻译Come to the point. As in figure 2.In the circular ring of which center is point O.if OA垂直OB,and the area中文什么意英语翻译一句话：the distance from the two foci to a point on the ellipse always add up to the same number for every point on the ellipse.请分析语法和句子结构, 英语翻译every children can be a hero if the word can live as one. 英语翻译mutational site,break point ,catastrophe point?标准翻译是什么 As in figure 2．In the circular ring of which center is point O．if AO⊥BO,and the area of the shAs in figure 2．In the circular ring of which center is point O．if AO⊥BO,and the area of the shadowy part is 25cm2 ,then the area of the circuiar