Fast Sub-pixel Motion Estimation by Means of One-Bit Transform

نویسندگان

  • Orhan Akbulut
  • Oguzhan Urhan
  • Sarp Ertürk
چکیده

In this study sub-pixel motion estimation using one-bit transform is presented. The utilization of low bit depth representations for full-pixel motion estimation exist in the literature [1,7]. However sub-pixel motion estimation employing these kinds of transforms has not been tried until now. In this paper, it is shown that one-bit transform can also be utilized for sub-pixel motion estimation, significantly improving motion estimation accuracy. Hence a fast subpixel motion estimation approach is facilitated using one-bit transform.

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

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Fast Binary Block Matching Motion Estimation using Efficient One-Bit Transform

Binary block matching algorithm employs one-bit transform (1BT) to transform video sequences from full resolution representation (8-bit/pixel in general) to 1-bit/pixel bit-plane, then performs block matching motion estimation in bit-plane to save computations. Unfortunately, current 1BT algorithms either have bad output motion vectors or are computational intensive. In this paper, a novel fast...

متن کامل

A Block-Based SNR Scalable Wavelet Video Codec with Sub-pixel Motion Vectors and R-D Optimization

We propose a block-based wavelet codec in which motion vector estimation and motion residual encoding are performed within a wavelet domain. By interpolation on dyadic wavelet transform, we show that motion vector estimation in the wavelet domain can achieve sub-pixel precision. To improve PSNR performance at low bit rates, we propose a bit-plane-based rate-distortion (R-D) optimization algorit...

متن کامل

Adaptive Unithreshold Two-Bit Block Motion Estimation

Image compression is essential technique to realize real time communication and motion estimation is the slowest part in the video processing. To reduce the complexity, one bit and two bit transform algorithms are presented past, but this algorithms are some problems, particularly when each pixel transform into binary, it increase encoding time. In this work, we improve the 2 bit transform algo...

متن کامل

Low Bit Rate Video Coding with Geometric Transform

This paper describes how the combination of geometric transformations in both the spatial and pixel domains can be used for video coding. The geometric transformation applied in the spatial domain is able to track movements such that, for low bit rate video coding, the motion vectors alone can be used to represent a complex motion of moving objects. The introduction of such a transformation in ...

متن کامل

Fast sub-pixel motion estimation based on directional information and adaptive block classification

Sub-pixel motion estimation takes a significant amount of time in motion estimation of the H.264 encoder. A few fast schemes have been proposed. Most of them are based on the analysis of the neighboring blocks. In this paper, we propose a new approach of fast sub-pixel motion estimation. This algorithm uses the statistical information, which features the motion activities of the blocks in the p...

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

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

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2006