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  2. Comparison of video converters - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_video_converters

    Video converter Developer License Supported platform Windows Mac OS X Linux Any Video Converter: Anvsoft Inc. Freeware: Yes: Yes: No Avidemux: Mean, Gruntster, Fahr: GPL-2.0-or-later: Yes: Yes: Yes Dr. DivX: DivX, Inc. Adware bundled 15-day trial: Yes: Yes: No DVDVideoSoft Free Studio: DVDVideoSoft: Shareware (requires paid membership for basic ...

  3. Sample-rate conversion - Wikipedia

    en.wikipedia.org/wiki/Sample-rate_conversion

    To convert a 24 frame/sec movie to 60 field/sec television, for example, alternate movie frames are shown 2 and 3 times, respectively. For 50 Hz systems such as PAL each frame is shown twice. Since 50 is not exactly 2×24, the movie will run 50/48 = 4% faster, and the audio pitch will be 4% higher, an effect known as PAL speed-up .

  4. Statistical interference - Wikipedia

    en.wikipedia.org/wiki/Statistical_interference

    This derived distribution can be used to determine how often the difference in dimensions will be less than zero (i.e., the shaft cannot fit in the hole), how often the difference will be less than the required sliding gap (the shaft fits, but too tightly), and how often the difference will be greater than the maximum acceptable gap (the shaft ...

  5. Overlap coefficient - Wikipedia

    en.wikipedia.org/wiki/Overlap_coefficient

    The overlap coefficient, [note 1] or Szymkiewicz–Simpson coefficient, [citation needed] [3] [4] [5] is a similarity measure that measures the overlap between two finite sets.It is related to the Jaccard index and is defined as the size of the intersection divided by the size of the smaller of two sets:

  6. Compression artifact - Wikipedia

    en.wikipedia.org/wiki/Compression_artifact

    Video compression artifacts include cumulative results of compression of the comprising still images, for instance ringing or other edge busyness in successive still images appear in sequence as a shimmering blur of dots around edges, called mosquito noise, as they resemble mosquitoes swarming around the object.

  7. Television standards conversion - Wikipedia

    en.wikipedia.org/.../Television_standards_conversion

    Converting video between different numbers of lines, frame rates, and color models in video pictures is a complex technical problem. However, the international exchange of television programming makes standards conversion necessary so that video may be viewed in another nation with a differing standard.

  8. Test card - Wikipedia

    en.wikipedia.org/wiki/Test_card

    Test cards typically contain a set of patterns to enable television cameras and receivers to be adjusted to show the picture correctly (see SMPTE color bars).Most modern test cards include a set of calibrated color bars which will produce a characteristic pattern of "dot landings" on a vectorscope, allowing chroma and tint to be precisely adjusted between generations of videotape or network feeds.

  9. Reciprocal length - Wikipedia

    en.wikipedia.org/wiki/Reciprocal_length

    Reciprocal length or inverse length is a quantity or measurement used in several branches of science and mathematics, defined as the reciprocal of length.. Common units used for this measurement include the reciprocal metre or inverse metre (symbol: m −1), the reciprocal centimetre or inverse centimetre (symbol: cm −1).