Sentence examples for block variance from inspiring English sources

The confidence level of a block is defined by a block variance.

For the higher block variance, the more accurate motion estimation is performed.

The proposed method performs hierarchical ME in descending order of block variance values with adaptive search range.

However, this analysis is also more complicated because it results in a subjective interpretation of results if the block variance component is non-positive.

In addition, if the block variance is less than a given threshold, e.g., 1, we would assume that the corresponding block belongs to the smooth region.

Motion estimation is performed in a descending order of block variance, and the search range of each block is adaptively determined, depending on the MV in adjacent interpolated blocks at the interpolated frame.

The search range and order of block processing depend on block variances and are adaptively adjusted.

Because a single segment and a single pixel is selected within their corresponding blocks, it is not possible to estimate block variances from the sample information.

The proposed algorithm requires more computational time than the conventional algorithms, because the proposed method sequentially performs motion estimation in descending order of block variances.

Image noise estimation methods can be categorized into either smoothing-based approaches, where noise is computed using the difference between the input image and a smoothed version of it, or block-based approaches, where block variances of the most homogenous block in a set of image blocks is taken as noise variance[63].

For instance, it has been demonstrated in simulated data and in a visual fMRI experiment that correlations varied depending on whether task-related variance, block-to-block variance, and residual variance were removed from the time series [10].