视觉

Thismethod adopted affine transformation model and a Lie derivative-based analytical algorithm.We introduced the process and characters in extracting information of biological visionsystem, studied the feasibility of the generalized Gabor function used as receptive fieldfunction in extracting information and analyzed affine transformation group and Liederivatives. Finally, we deduced the mathematical denotation for Lie derivatives, i.e. theinfinitesimal generator of the geometric distortion in affine transformation.

对生物视觉信息提取的过程及特点进行了介绍，其中主要研究了广义Gabor函数作为感受野函数提取初级视觉信息的可行性；对仿射变换作为外界图像信息在视觉成像系统上的投影模型的原理进行了初步讨论；对Lie变换群微分算子用于提取仿射变换不变量的分析方法作了剖析，并推导了该方法中关键部分——仿射变换Lie微分算子的具体表达式，也就是几何变形无限小微分算子的计算表达式，使下一步编程实现该方法成为可能。

Objective To discuss the factors affecting binocular vision by observing the effects of anisometropia and its correction vis LASIK and glasses.

目的 观察成人屈光参差患者接受准分子激光原位角膜磨镶术后双眼视觉情况，探讨影响双眼视觉形成和恢复的主要因素及LASIK与戴框架眼镜对双眼视觉恢复作用的异同。

Apollonian Vision differs from the classical idea of vision, which is characterized by a desire-excluded subject. It also distinguishes itself from the abstracting and formalizing tendency in the Modernist visional conception.

这种视觉模式既不同于传统哲学中以主体为中心、排除欲望的视觉观念，也不同于现代主义中视觉的抽象化和形式化倾向。

Limiting the time term's test shows that the influence is very small to the judgment influence of the sense of vision depth of the athlete, for common high school student the influence is very clear. As the member of team in different position, the total ascending has the certain difference; the depth sense of vision level of the forward in totally higher than vanguard and rearguard, the vanguard is total with the depth sense of vision level of the rearguard ascend did not show the very difference.

限定时间条件对运动员的视觉深度的判断影响很小，对于普通中学生影响显著。15年龄段场上不同位置的队员的视深能力总体上有一定的差异；前锋的深度视觉水平在总体上要高于前卫和后卫，前卫和后卫的深度视觉水平总体上没有显著差异。

This paper introduces the system of computer vision, reviews the application of computer vision in automatic production of agriculture.

该文介绍了计算机视觉系统的组成，概述了国内外计算机视觉技术在农业生产自动化中的应用状况，并对计算机视觉技术应用于农业自动化中存在的问题及发展前景做了概括

The camera calibration method is based on the 2D plane target\'s camera calibration method that is proposed by Zhang Zheng-you et al. Intrinsic and extrinsic parameters of fixed-focus camera are obtained and the precision and the error analysis of Camera calibration are done. The multi-sensor vision system errors are obtained. The error average value is 3.39 mm in X lateral, 0.43 mm in Y lateral, and 1.52 mm in Z laterals. The precision might satisfy the multi-sensor vision system\'s localization request.(3) The goal position and intensity have difference between the visible light image and the near-infrared image because of their image formation mechanism, resolution and field of view differences.

2建立了基于2D圆控制点的摄像机标定试验系统，对多源传感器视觉系统的摄像机，采用张正友等人提出的基于2D平面靶标摄像机标定方法进行了标定试验，得到了多源传感器视觉系统的摄像机内外参数，并对标定结果进行了精度和误差分析，得出视觉系统在X方向误差均值为3.39 mm，Y方向误差均值为0.43 mm，Z方向误差均值为1.52 mm，可以满足多源传感器视觉系统的定位要求。

The focus of the collimating lens has effects on the slope of the visual magnification curve while the focus of the imaging lens affects visual magnification of the whole moving range in the same way.

系统中视力板移动检测时，准直透镜焦距影响视觉放大率变化快慢，决定视觉放大率曲线的平缓程度；成像透镜焦距对视觉放大率产生整体影响，使视觉放大率曲线产生整体平移。

Ladd-Franklin develops the Ladd-Franklin theory, which stated that evolution led to an increased differentiation between color and black and white vision, and assumed a photochemical model of the visual system.

莱德-弗兰克林发展了莱德-弗兰克林理论，认为进化式彩色视觉、黑色视觉及白色视觉间的差异加大，并假设了视觉系统的光化学模型。

Firstly, visual attention mechanism, visual attention computing model and the art state are introduced. Secondly, the need and importance of visual saliency in image are analyzed. In addition, the levels, extraction and measurement of visual saliency are discussed in detail. At last, open problems are put forward.

本文首先介绍了视觉注意力、视觉注意力计算模型及研究现状，其次分析了图像中引入视觉显著性的必要性和重要性，论述了图像视觉显著性的层次、显著性特征的选择及度量；最后给出了有待研究的重点问题。

The goal of visual prosthetics is the elicitation of useful visual percepts by means of electrical stimulation although the access to the perceptual domain via the central visual system is still not well understood.

虽然通过中枢视觉系统到知觉域的机制还未完全了解，但视觉假体是通过电刺激视觉通路的不同部位来产生有用的视觉感受。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。