A compression algorithm can be developed exploiting this basis to obtain the most economical representation of the image in terms of textured patterns.
根据这种自适应基可以制定一套压缩算法,从而用较少的系数就可以描述纹理图象。
On the basis of analyzing video data acquisition from radar recording meter, an improved radar image compression algorithm, based on zero-tree coding wavelet decomposition, was proposed.
在对雷达记录仪采集的视频数据分析的基础上,提出了一种改进的基于零树编码的小波分解雷达图像压缩算法。
The improvement of algorithm aims at promoting compression ratio with minor loss of quality of reconstituting image, and is validated by experiments.
优化算法目的是以较小的图像重建质量损失来获得图像压缩质量的提高,并进行了实验验证。
Experimental results show that the algorithm maintains the quality of the original image and is robust to non-geometric attack and loss compression.
实验表明,本算法较好地保持了原始图像的品质,对非几何攻击和有损压缩具有较好的稳健性。
The image coding and compression technologies based on the JPEG2000 standard is studied in this article, which focus on region-of-interest (ROI) compression and EBCOT optimization algorithm.
本文主要基于JPEG2000标准来研究图像编码和压缩相关技术,其重点是感兴趣区域(ROI)的压缩和EBCOT算法的优化。
Through analyzing the core algorithm of the JPEG2000, this paper describes the image compression process and the advantages of the JPEG2000 compared with the previous standards.
通过对JPEG2000中核心算法的分析,阐述了JPEG2000压缩过程以及与现有压缩标准相比显示出来的优越性能。
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.
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。
Considering the problem of binary image code based on rectangular partitioning, an improved BSP binary image compression algorithm is provided.
针对二值图像矩形划分编码在划分时存在的问题,本文提出一种改进的BSP二值图像的压缩算法。
A new wavelet image compression algorithm was proposed based on morphological dilation and the positional information of the important coefficient couplet belt.
提出了一种基于形态膨胀运算的对子带间重要系数位置信息进行联合编码的新型小波图像压缩编码算法。
Combined with FSVQ algorithm, the traditional DCT transform and integer DCT transform are used to improve the performance of image compression.
对经典DCT变换和整数DCT变换进行研究,并把它们和有限状态矢量量化编码算法相结合,提高了对图像的压缩性能。
The RBC is characterized with high fidelity of the restored image and low computation complexity of the compression algorithm, and so it is quite suitable for high speed real time compression usage.
RBC方法的主要特点是恢复图像的高保真和压缩算法的低运算复杂度,因此十分适合高速、实时压缩应用。
We test the algorithm performance in the cases of single watermark, double watermarks and multi watermarks when different distortions such as JPEG compression, image resizing and cropping are applied.
该文就单水印,双水印以及多水印情形进行了仿真并进行JPEG压缩、图像缩放、剪切等失真测试。
For image sequence, this paper proposes a scheme of UAV image sequence compression and realizes it on base of the static image compression coding algorithm before.
序列图像压缩方面,在静态图像压缩算法基础上,提出并实现了一种基于小波的无人机序列图像压缩方案。
This paper first understands the existing standards and algorithm of image compression.
本文首先了解了现有的图像压缩标准和算法。
Firstly, the thesis presents the system scheme of digital image compression based on PDVQ. Then we introduce the hardware design, FPGA logic realizing and FPGA implement of image processing algorithm.
本文首先给出了基于PD VQ的数字图像压缩系统的系统方案,然后介绍了系统的硬件结构设计、FPGA逻辑实现以及图像处理算法的FPGA实现。
Experimental result shows that compared to the traditional EZW, the improved algorithm can increase the peak signal to noise radio (PSNR for short) of image compression.
实验结果表明,与传统的EZW算法相比,该改进算法明显提高了图像压缩的峰值信噪比。
The digital image has huge data information, so the algorithm which has high compression ratio and high fidelity rate is urgently needed, taking account of storage cost and communication.
由于数字图像具有数据量大的特点,出于对图像存储成本和图像通信的考虑,良好的图像压缩技术要能够实现高压缩率和高保真率。
The algorithm of VQ must be improved to reducing amount of calculation, increasing compression rate and steadying the quality of rebuilt image at same time.
通过对矢量量化图像编码算法进行改进,达到低运算量,高压缩比以及稳定的图像质量的目的。
Experimental results show that the proposed algorithm keeps the quality of the image well and is robust enough to JPEG compression, noise, filtering, image scaling, image enhancement etc.
仿真试验结果表明该水印系统不仅较好地保持了图像的质量,而且对JPEG压缩、噪声污染、滤波、图像剪切等操作都显示了较强的鲁棒性。
The experiment shows that our new algorithm generates better quality of recovery image with high compression ratio than MPEG 2.
实验结果表明,该算法在高压缩比情况下图象复现质量显著优于MPEG-2,具有广阔的应用前景。
This thesis proposes a kind of Wavelet neural network algorithm which has been used in the medical image compression, the experiment result shows that the method has a good compression effect.
本文提出一种用于图像压缩的小波神经网络算法,在医学图像压缩中的应用进行了研究,实验结果表明该算法是具有较好的图像压缩效果。
The result of experiments shows that the improved algorithm gets a better result in both the quality of recompose image and the compression ratio of lossless.
实验结果证明在解码率比较高的情况下,本文方案的图像重构效果较嵌入式零树算法好,无损情况下的压缩比也得到了提高。
JPEG has been one of the most popular compression standards of digital image. It is ensured that the watermarking algorithm is very robust against image compression, especially JPEG compression.
这就保证了水印算法对有损压缩具有极好的鲁棒性,特别是JPEG压缩。
Comparing with the adaptive denoising algorithm based on compression ratio and SVD, it avoids calculating the function of image compression ratio and its knee point.
该算法的特点是将能量最小法则和奇异值分解结合起来,在代数空间中建立了一种自适应的图像降噪算法。
Then, the principle of area exchange rate was used for image processing. After that, the data was kept and transmitted to the upper device by image compression algorithm of BP neural network.
然后采用面积换速度的原则进行图像处理,在图像处理过程中采用BP网络图像压缩的算法保存并传输给上位机。
Then, the principle of area exchange rate was used for image processing. After that, the data was kept and transmitted to the upper device by image compression algorithm of BP neural network.
然后采用面积换速度的原则进行图像处理,在图像处理过程中采用BP网络图像压缩的算法保存并传输给上位机。
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