噪声和模糊的存在降低了图像的视觉质量,影响了图像的后续处理。
The noise and blur in images have severely degraded image quality and affected the subsequent image processing tasks.
量化步长越大,块效应越明显,极大地影响图像的视觉质量和压缩效率。
The bigger the quantification step, the more obvious the blocking effect in visual effect and compression efficiency.
通过实验,该算法既能保持原有零树算法良好的压缩品质,而且也改善了图像的视觉质量。
By the tests, the improved algorithm not only bears the effective compression performance of the original zero tree algorithm, but also improves the visual quality of image.
块离散余弦变换在低比特率时其恢复图像的块边界上会出现明显可见的方块效应,从而降低了图像的视觉质量。
The block-Based Discrete Cosine Transform (BDCT) suffers from visible blocking artifacts between adjacent image blocks at low bit rates, which reduces the image visual quality.
这家公司设定了一个示范网页用来展示常规网络图像并且列举出如若使用webp格式同一个图像数据量将会是多么的小,而图像质量在视觉方面却毫无变化。
The company has set up a demo page that shows typical Web images and lists how much smaller the same image would be in WebP, without visible changes to the quality of the image.
在图像分析系统或计算机视觉系统被应用于岩石颗粒中,第一个要解决的问题是图像获取,其决定着图像质量的好坏。
When applying image analysis and computer vision system to aggregate particles, the first working step is image acquisition. The quality of images mainly depends on how to acquire images.
本算法同其他算法相比,在相同的压缩比条件下,恢复图像具有更好的视觉质量。
Compared to the results of other algorithms, the reconstructed image has good visual quality under the condition of the same compression ratio.
然而,由于需要获得不同的图像信息,这就使得它对图像的质量,照明系统和照明方式的要求比单目视觉系统的要求更高。
However, in order to obtain images with different information, it requires better image and lighting systems than monocular vision system.
提出了以峰值信噪比为基础,结合结构相似度和基于人眼视觉系统的数字电影图像质量客观评价方法。
The objective digital film image quality assessment based on peak signal to noise ratio, together with structural similarity and human vision system is proposed.
一种基于视觉感知特征的半色调图像质量评价方法。
A new method to evaluate halftoned image quality that depends on the visual perception characteristics.
目前,大部分PIT技术未能充分考虑人眼视觉特性,只注重重构图像的客观质量。
At present, only the objective quality of the reconstructed image rather than the characteristic of human sight is considered with most of the existing PIT techniques.
理论分析和实验均证明了结构失真评价方法与图像主观视觉质量的一致性。
The theory analysis and experiments demonstrate the correspondence between the assessment approach based on structural distortion and the subjective image quality.
本文结合机器视觉和图像处理技术,设计并实现了一套针对弹片质量的在线检测系统。
This paper designs a line for spring quality inspection system, combining with machine vision and image processing technology.
实验结果表明,相比于其他方法,本文算法获得更佳的视觉效果和图像质量。
Experiment results show that compared with other methods, the proposed method has better visual effects and image quality.
在本系统中,选用LED光源和畸变小的镜头作为视觉检测系统的照明光源和成像镜头,为精密测量提供了高质量的图像。
The LED light source and lenses with little distortion are selected as light sources and lens of imaging for inspection system, which provide high quality images during precise inspection.
采用主观视觉实验研究了不同帧率下不同视频图像内容的主观图像质量。
Subjective visual perception experiment was performed to evaluate the image quality for different videos at different frame rates.
JPEG2000是一种新的静止图像压缩标准,与JPEG相比,对于具有同样视觉质量的灰度等级图像和彩色图像,JPEG2000能提供更高的压缩率。
The new still image compression standard, JPEG2000, provides higher compression rates for the same visual quality for gray scale and color images than JPEG.
工业图像检测系统是机器视觉、数字图像处理及工业质量检测等多学科的交叉。
Industrial image detecting system is an integration of machine vision, digital image processing and industrial product detection.
应用视觉感知实验的方法对移动显示(手机)用LCD的运动图像质量进行了主观评价,研究了帧频、响应时间和视频图像内容对运动图像质量的影响。
Quality of moving images on mobile LCD is estimated by a visual perception experiment to investigate the influence of frame frequency, response time and video content.
实验结果表明该算法在低码率下,相比jpeg,获得了在视觉效果和峰值信噪比方面更好的恢复图像质量。
Experiment results show that in low bit rate environment, the new image compression scheme performs better than JPEG in the aspects of perception and PSNR (Peak Signal Noise Ratio).
目前普遍采用的插值重建等方法存在重建后图像的主观视觉质量明显下降的不足。
In general, the widely used interpolation method has some limitations such as low subjective quality of the reconstructed image.
图像质量评价是图像处理领域中的重要方向,传统的图像质量评价方法不能有效的反映人眼对图像的视觉感知。
Image quality evaluation is an important field of image processing, but classical image quality evaluation method can not represent knowledge perceived by human eyes.
图像质量评价研究的目标是设计算法,给出和人的主观视觉感受相符合的评价结果。
Its objective is to design algorithms which can give the objective evaluation results that in line with the human's subject perception.
由于图像的最终接受者是人,所以评价图像质量的关键在于其是否符合人类视觉系统特性。
Since human being is the final receiver of the image, the key point of the image assessment is that it should match the characteristics of HVS(human visual system).
文中针对含噪图像的质量评价,提出一种基于人眼视觉特性的盲图像质量评价算法。
A novel blind image quality assessment method based on property of HVS was proposed to evaluate the quality of noisy image.
根据视觉测量图像质量较好及以高斯噪声为主的特点,提出采用简单的高斯滤波或者SUSAN去噪算法对图像在卡尺范围内进行滤波处理的方法。
The simple GAUSS filter or SUSAN filter will be used to removal the noise in the calipers scope according the characteristic of image quality and GAUSS noise.
在主观视觉上,ROI的图像质量有明显改善。
In subjective human vision system, the quality of ROI has been obviously improved.
其局限性是,图像质量会下降,因为观众每只眼所看图像的分辨率只有显示屏标准分辨率的一半。眼睛不正对着屏幕时,立体视觉效果依然会受到限制。
It has limitations. Image quality is reduced, since each eye is presented with half of a display's resolution . And viewing angles are still limited .
充分利用人眼视觉掩盖效应,针对不同的失真类型对于图像不同的内容具有不同的质量影响,提出了一种新的加权策略。
Aiming at different quality effects on different image region and distortion type, we take full advantage of the visual masking effect and proposed a new weighted idea.
充分利用人眼视觉掩盖效应,针对不同的失真类型对于图像不同的内容具有不同的质量影响,提出了一种新的加权策略。
Aiming at different quality effects on different image region and distortion type, we take full advantage of the visual masking effect and proposed a new weighted idea.
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