Now showing items 1-10 of 10

  • 3D Motion Estimation and Texturing of Human Head Model 

    Mihalik, J.; Michalcin, V. (Společnost pro radioelektronické inženýrství, 2004-04)
    This paper deals with 3D motion estimation of the wire frame head model on the basis of the analysis of the parameters of 3D global motion of the real human head for each frame of videosequence. The proposed algorithm of ...
  • 3D Motion Estimation of Human Head by Using Optical Flow 

    Mihalik, J.; Michalcin, V. (Společnost pro radioelektronické inženýrství, 2006-06)
    The paper deals with the new algorithm of estimation of large 3D motion of the human head by using the optical flow and the model Candide. In the algorithm prediction of 3D motion parameters in a feedback loop and with ...
  • Animation of 3D Model of Human Head 

    Mihalik, J.; Michalcin, V. (Společnost pro radioelektronické inženýrství, 2007-04)
    The paper deals with the new algorithm of animation of 3D model of the human head in combination with its global motion. The designed algorithm is very fast and with low calculation requirements, because it does not need ...
  • Modeling of Human Head Surface by Using Triangular B-Splines 

    Mihalik, J. (Společnost pro radioelektronické inženýrství, 2010-04)
    The paper deals with modeling of human head surface on the basis of quadratic triangular B-splines for the standard videocodec MPEG-4 SNHC. First, we define a triangular B-spline surface of any degree and then we present ...
  • Multichannel Spline Interpolation of Discrete Signals 

    Mihalik, J.; Zavacky, J. (Společnost pro radioelektronické inženýrství, 1994-07)
    This paper presents the multichannel sampling of a continuous-time signal with division of its frequency band into a few sub-bands. It deals with the combination of this sampling method and spline interpolation with the ...
  • Multistage Vector Quantization of Image by Using Clustering Interpolation in DCT Domain 

    Mihalik, J. (Společnost pro radioelektronické inženýrství, 1997-12)
    An adaptive image coding scheme, called multistage vector quantization (MSVQ) is proposed. A new algorithm of MSVQ uses clustering interpolation in DCT domain and enables vector quantization of large image blocks with ...
  • Resampling of an Image by Block-Based Interpolation or Decimation with Compensation 

    Zavacky, J.; Mihalik, J.; Kapinos, M. (Společnost pro radioelektronické inženýrství, 2000-06)
    Due to multiple standards on digital coding of image it is expected that conversion from one picture format to another will be quite necessary for display or recording of different format sources. Conventional approach of ...
  • Spline Interpolation of Image 

    Mihalik, J.; Zavacky, J.; Kuba, I. (Společnost pro radioelektronické inženýrství, 1995-04)
    This paper presents the use of B spline functions in various digital signal processing applications. The theory of one-dimensional B spline interpolation is briefly reviewed, followed by its extending to two dimensions. ...
  • Texturing of Surface of 3D Human Head Model 

    Mihalik, J.; Michalcin, V. (Společnost pro radioelektronické inženýrství, 2004-12)
    The paper deals with an algorithm of texturing of the surface of 3D human head model. The proposed algorithm generates a texture consequently of several camera frames of the input video sequence. The texture values from ...
  • Two Layer Vector Quantization of Images 

    Mihalik, J.; Gladisova, I.; Michalcin, V. (Společnost pro radioelektronické inženýrství, 2001-06)
    This paper deals with spatial scaleable vector quantization of images by using two layers. At the base layer the small dimensional full search vector quantization of an image of block means is carried out. After subtracting ...