blocking artifacts中文什么意思

例句与用法

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1. wavelet transformation is a new dip ( digital image processing ) technique . as its energy is more concentrated after the transformation, which contributes to the high compressed rate with good subjective and objective assessment . wavelet transformation deals with the whole image, so it can completely remove the block artifact
   小波变换是一种新兴的图象处理技术，它在变换域能量集中，所以在人的主观、客观评价良好的条件下可以获得高压缩比；而且这种变换是对整幅图象进行处理的，因此能够从根本上消除图象的方块效应。
2. with the theory of wavelet transform and reversible integer-to-integer wavelet transforms based on shifting frame used in image / video compression field introduced, a new real-time implement of speck algorithm using dsp chip is provided . then the technology of motion estimation and motion compensation is discussed and an adaptive technique for the wavelet video codec to reduce the " block artifact " is presented . and the implement of the wavelet video compression system using adv611 chip is discussed next with the performance emulation result
   在系统讨论了小波理论在图像视频压缩编码领域的应用后，结合dsp技术提出一种基于dsp应用的实时低存储需求的改进speck图像编码器；随后探讨基于小波变换的实时视频编码器的实现，在论述运动估计与补偿技术的基础上，针对应用空域运动估计补偿技术的低比特率小波视频编码器提出一种自适应消除块效应的技术；并讨论了基于adv611芯片的视频压缩系统的压缩性能；最后提出一种基于dsp平台具有极低时延的小波视频混合编码方案，对该方案的压缩性能进行了讨论并给出初步的硬件实现方案。
3. although some existed international video coding standards, such as h . 261, h . 263, mpeg-1 and mpeg-2, has wined great success in all kinds of commercial applications . but for all these standards, the phenomena of sensible blocking artifacts or image dithering will emerge under narrow bands, which impair the visual quality of reconstructed images . so, these standards still could n't satiate the demands of very low bit-rate applications ( under 20kb / s )
   虽然已经制定的一些国际视频编码标准，如h.261、h.263、mpeg-1和mpeg-2，在各种商业应用中获得很大成功，但是在窄带条件下往往会产生人眼敏感的方块效应和图像抖动现象，损害了恢复视频的视觉质量，因此尚不能够满足在极低速率(低于20kb/s)下的应用。