该装置借助对图像清晰度评价来自动搜索到正焦面。
The device is by evaluating the image definition to automatically search the focal plane.
在此基础上实现了一种基于五区域的图像清晰度评价方法。
On this basis, a estimating method of image sharpness based on five regions was put forward.
运动模糊图像清晰度评价函数是图像恢复中评价图像质量的一个重要判据。
Clarity evaluation function of motion blurred image is an important criterion for evaluating the quality of image restoration.
准确有效的图像清晰度评价函数是采用数字图像处理技术实现自动调焦的关键。
The accuracy and efficiency of the sharpness function was a key to auto-focusing based on digital image processing technique.
在此基础上，提出了几种运动模糊图像清晰度评价函数，并研究了它们的优缺点和适用范围。
Based on that, some evaluation functions of motion blurred image are proposed, and their advantages and disadvantages are also discussed.
在此基础上，提出了几种运动模糊图像清晰度评价函数，并研究了它们的优缺点和适用范围。
Based on that, some evaluation functions of motion blurred image are proposed, and their advantages and disadvantages are also discussed. The mathematical models of these fun...
采用图像清晰度评价和自动焦点搜索实现自动对焦，有效地将调平、对焦、对准光路统一起来。
Auto-focus is completed by estimating from images; die leveling is completed by focusing for several feature locations.
本文首次研究了在不同方向的图像灰度差的绝对值之和与图像运动模糊方向的关系。在此基础上，提出了几种运动模糊图像清晰度评价函数，并研究了它们的优缺点和适用范围。
The relationships in various directions between the function, the sum of absolute value of gray difference of image, and the motion blur direction are studied for the first time in this paper.
而对于运动序列图像质量，则使用清晰度和流畅度指标加以客观评价。
Clarity and continuity are used to evaluate the quality of motional images.
本文提出了“图像清晰度”、“内外偏心度”和“虹膜可见度”三个衡量图像质量的指标，实现了对虹膜图像进行实时质量评价的要求。
Three performance metrics, image Definition, Inside and Outside Eccentricity, and Iris Visibility are introduced, which makes possible a real-time evaluation to the acquired images.
在采集一幅图像时，增加了数字图像质量评价函数的计算，来检测图像的清晰度。
In gathering image digital image quality evaluating function is added, so it can detect image definition.
通过多种评价方法对原始图像、融合图像的信息含量、清晰度、细节丰富程度、光谱信息保持状况等诸方面做出综合的分析与对比。
Several parameters were used to assess the original images and the fusion results by comparing the content of information, the articulation and the spectral information status.
对图像的阶调层次、清晰度、色彩、灰平衡等进行了主观评价，统计并分析了评价结果。
Image quality elements of tonal level, sharpness, color and gray balance were evaluated subjectively and grading results were also counted and analyzed.
在对图像纹理特征进行统计分析的基础上，本文提出了一种基于纹理分析的图像小波变换清晰度评价方法。
An image definition criterion using wavelet transform based on the texture analysis was proposed in this paper through the statistical analysis to the image texture characteristic.
本发明公开了一种结合频域和时域的多阶段虹膜图像自动对焦方法。方法的核心在于图像的清晰度评价。
The present invention discloses multistage irides image automatical focusing method combining frequency domain and time domain, method key being the image definition.
本发明公开了一种结合频域和时域的多阶段虹膜图像自动对焦方法。方法的核心在于图像的清晰度评价。
The present invention discloses multistage irides image automatical focusing method combining frequency domain and time domain, method key being the image definition.
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