
| | Neat Video filtration examples |
Below are several examples of video sequences with visible
noise of different nature. Generally, noise can be brought in by the video
camera sensor and signal amplifier, by electric interference, by compression, etc. In many cases, Neat Video can significantly improve the
quality of digital video sequences by reducing the objectionable noise.
Please compare some before and after stills from the
sample sequences below to see what Neat Video can do. You can download
the before and after sample video clips too. Hint: move mouse pointer over a filtered frame to compare it with the
original. |
A video sequence captured by a digital TV-tuner: noise and compression
artifacts | | This is a frame from a video sequence captured by a digital
TV-tuner. The original video sequence contains a clearly visible noise introduced
during the TV air transmission and further aggravated by
the tuner software's compression. Neat Video clears the objectionable
noise producing both cleaner video data and smaller video file.
Most video compression methods work better on noise-free video data, so
the filtered clip file is smaller than the original one (actually this
filtered clip even includes a longer part - 14 sec - of the captured sequence,
while the original clip includes only 7 sec from the captured sequence). |
A video sequence captured by a digital TV-tuner: noise and periodic
interference | | This is a frame from a video sequence captured
by a digital TV-tuner. The original video sequence contains the noise and radio interference
introduced
during the TV air transmittion. The interference has a periodic structure — you
may notice bandings in the original frame. Neat Video clears these noisy
elements, preserving true details and producing a clean video clip that
is much better compressable too. |
A video sequence recorded by a digital camcorder: noise and compression
artifacts | Original Frame | Filtered Frame | | | You can try Neat Video
on this clip by following the step-by-step
instruction available in the "Running
Neat Video on a sample video clip" chapter of the user
guide. |
| This is a cropped frame from a video sequence
recorded by a digital camcorder. The original video sequence contains the noise introduced by the sensor
set to a high sensitivity mode. There are also artifacts
introduced by the camcorder video compression. Neat Video clears the objectionable
noise producing a cleaner video clip. |
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