Loop filtering and post-filtering for low-bit-rates moving picture coding

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Loop-Filtering and Post-Filtering for Low Bit-Rates Moving Picture Coding

The decompressed images from highly compressed data have noticeable image degradations such as blocking artifacts, corner outliers, and ringing noise, because most image coding standards quantize the DCT coefficients of 8×8-pixel blocks independently. A loopfiltering algorithm and a post-filtering algorithm, which can reduce the quantization effects, are described, and the performances of both ...

متن کامل

Loop "ltering and post-"ltering for low-bit-rates moving picture coding

When an image is highly compressed by using the current coding standards, the decompressed image has noticeable image degradations such as blocking artifacts near the block boundaries, corner outliers at cross points of blocks and ringing noise near image edges. These image degradations are caused by quantization process of the 8 8 DCT coe$cients. In order to restore the decompressed image, a l...

متن کامل

Pre and Post-Filtering for Low Bit-Rate Video Coding

We propose pre and post-lters for low bit rate video coding. The purpose of the former is to make the video sequence easier to encode, whereas the latter aims to remove coding artifacts. The proposed techniques are computation-ally eecient and lead to scalable architectures which 1) can handle varied types of video content and 2) can be adapted to the available bandwidth and computational resou...

متن کامل

Adaptive coding of moving objects for very low bit rates

This paper describes an object-based video coding system with new ideas in both the motion analysis and source encoding procedures. The moving objects in a video are extracted by means of a joint motion estimation and segmentation algorithm based on the Markov random field (MRF) model. The two important features of the presented technique are the temporal linking of the objects, and the guidanc...

متن کامل

Joint Kalman-Based Noise Filtering and Motion Compensated Video Coding for low Bit Rate Videoconferencing

The problem of noise ltering for video coding applications is considered in this paper. In 1], an advantageous technique to combine a motion compensated (MC) noise lter with the coding loop of an MC hybrid coding scheme was illustrated, and a rate{distortion (RD) optimization framework was proposed. Here, we describe an alternative structure for denoising image sequences to be coded, which is b...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Signal Processing: Image Communication

سال: 2001

ISSN: 0923-5965

DOI: 10.1016/s0923-5965(00)00048-5