Motion

Why motion cannot be estimated in DCT domain using block match?

Why motion cannot be estimated in DCT domain using block match?
  1. What is motion compensation and motion estimation in video compression?
  2. What do you mean by motion estimation?

What is motion compensation and motion estimation in video compression?

Motion estimation examines the movement of objects in an image sequence to try to obtain vectors representing the estimated motion. Motion compensation uses the knowledge of object motion so obtained to achieve data compression.

What do you mean by motion estimation?

Motion estimation is the process of determining motion vectors that describe the transformation from one 2D image to another; usually from adjacent frames in a video sequence. It is an ill-posed problem as the motion is in three dimensions but the images are a projection of the 3D scene onto a 2D plane.

Sampling The baseband sampling frequency when the negative spectrum is considered
The baseband sampling frequency when the negative spectrum is considered
What should be the sampling frequency?What is the minimum sample frequency needed to reconstruct an analog signal?What is produced when the sampling ...
Stft STFT for Classification
STFT for Classification
What is STFT used for?How is STFT calculated?What are the advantages of STFT over a simple FFT?Why would we use a STFT spectrogram for Analysing huma...
Depth What Measure to Compare the Color Depth (Distribution of Colors) of Images
What Measure to Compare the Color Depth (Distribution of Colors) of Images
How is color depth measured?What is colour depth in relation to images?What is color depth and how does it affect the display and size of an image?Ho...