最后对重构图像进行分水岭变换得到颗粒分割图像。
Finally, watershed transform was carried out on reconstruction image to obtain granule segmentation image.
指出了图像的压缩率与重构图像的失真率存在一定的关联。
There is certain connection between the compression rate of image and the distortion rate of image reconstruction.
实验结果提供了关于离轴角与重构图像质量之间的关系的有用信息。
The results provide useful information about the relationship between the off-axis Angle and the quality of the reconstructed image.
对重构图像的分辨率和可视度进行了讨论,并对两者之间的关系进行了研究。
The resolution and visibility of the reconstructed image are discussed, and the relationship between resolution and visibility is analyzed.
基于物理真实的有损压缩往往伴随有VOP结构形变,导致重构图像质量下降。
The physical validity based lossy compression algorithms are usually accompanied with VOP structural distortion, leading to the degradation of the reconstructed image quality.
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.
视频流的传输错误将会导致解码错误在时间和空间上扩散,直接影响重构图像的质量。
Transmission error of video frequency always results in decoding mistake both in time and space and directly affects the quality of reconstructed image.
实验结果表明:该算法有较好的重构图像主观质量和较高的峰值信噪比(PSNR)。
The experiment results show the image compression scheme can improve the recovery image quality and peak signal-to-noise ratio(PSNR).
受扫描系统精度的限制,这一要求难以得到充分的满足,从而引起重构图像出现重影伪像。
This requirement is hardly satisfied in full under the accuracy restriction of the scanning system. Consequently a kind of artifact called double shadow exhibits itself in reconstruction images.
实验结果表明,与传统方法相比,该算法重构图像的主观质量得到了明显增强,提高了峰值信噪比。
The experimental results show that the performance of this algorithm is better than the traditional method both in vision effect and peak signal to noise ratio.
但是,分割尺寸越小,重构图像的块状效应越明显,而且分割越小图像所表示的方向也越少,效果也近似于小波变换。
Nevertheless, the smaller size of sub image also results to clearer block effect, and the fusion results achieved by ridgelet will also approximate to wavelet transform.
但是,由于超分辨率图像重构本身是一个病态求逆过程,在重构图像中所产生的边缘振荡效应往往很难在重构过程中予以消除。
However, due to the ill-posed nature of the super-resolution image reconstruction, the ringing artifacts can not be easily removed in the reconstruction process.
在压缩感知框架下运用正则化正交匹配追踪(ROMP)算法进行图像重构时,迭代次数取值不合适会严重降低重构图像的质量。
The unsuitable iterative number of the Regularized Orthogonal Matching Pursuit (ROMP) algorithm in the framework of Compressive Sensing (CS) may reduce the quality of image reconstruction greatly.
运用小波域及DCT域下的分形压缩图像方法,提高了编码速度,得到较高的压缩比和信噪比,但重构图像质量还存在块状效应。
Fractal Image-compressed is carried out after DWT or DCT to improve coding speed and get higher CR and PSNR, but quality of reconstructed-Image is not satisfactory.
实验结果表明本文算法在确保重构图像较高质量的前提下,各层图像都实现了较高的压缩比率,对图像的分层压缩与传输的实现具有较高的实用价值。
The experiment result shows that this approach can keep the quality of images , and compress each layer to a good ratio . So it is useful in multi-layered image compressing and transmission.
实验结果表明本文算法在确保重构图像较高质量的前提下,各层图像都实现了较高的压缩比率,对图像的分层压缩与传输的实现具有较高的实用价值。
The experiment result shows that this approach can keep the quality of images , and compress each layer to a good ratio . So it is useful in multi-layered image compressing and transmission.
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