3d Global Motion Estimation of Human Head by Using Optical Flow

نویسنده

  • Ján Mihalík
چکیده

In this paper an estimation of tree dimensional (3D) global motion of human head in model based coding of videotelephone signals is presented. 6 parameters of global motion are estimated by using optical flow, 3 rotation angels and 3 translations. An least-squares (LS) method was used for solving the motion parameters of the human head between two successive frames in videosequence.

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

Computation Optical Flow Using Pipeline Architecture

Accurate estimation of motion from time-varying imagery has been a popular problem in vision studies, This information can be used in segmentation, 3D motion and shape recovery, target tracking, and other problems in scene analysis and interpretation. We have presented a dynamic image model for estimating image motion from image sequences, and have shown how the solution can be obtained from a ...

متن کامل

تحلیل حرکت جریانات دریائی در تصاویر حرارتی سطح آب دریا

Oceanographic images obtained from environmental satellites by a wide range of sensors allow characterizing natural phenomena through different physical measurements. For instance Sea Surface Temperature (SST) images, altimetry data and ocean color data can be used for characterizing currents and vortex structures in the ocean. The purpose of this thesis is to derive a relatively complete frame...

متن کامل

Model-Based Head Tracking and 3D Pose Estimation

This paper presents a generic method for addressing the issue of 3D model-based head pose estimation. The method proposed relies on the downhill simplex optimization method and on the combination of motion and texture features. A proper initialization based on a block matching procedure associated with 3D/2D matching depending on texture and optical flow information leads to an accurate recover...

متن کامل

Fast Algorithms for Stereo Matching and Motion Estimation

This paper presents fast algorithms for similarity measure, stereo matching, panoramic stereo matching, and image motion estimation. The disparity map for the stereo images is found in the 3D correlation coefficient volume by obtaining the global 3D maximumsurface by using our two-stage dynamic programming (TSDP) technique. Fast panoramic stereo matching is carried out using a cylindrical maxim...

متن کامل

A Robust Model-Based Approach for 3D Head Tracking in Video Sequences

We present a generic and robust method for model-based global 3D head pose estimation in monocular and non-calibrated video sequences. The proposed method relies on a 3D/2D matching between 2D image features estimated throughout the sequence and 3D object features of a generic head model. Specifically, it combines motion and texture features in an iterative optimization procedure based on the d...

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 2004