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2. Wilhelm Schickard - Wikipedia

   en.wikipedia.org/wiki/Wilhelm_Schickard

   Wilhelm Schickard. Wilhelmus Schickart (painted 1632) Wilhelm Schickard is holding a hand planetarium (or orrery) of his own invention. It was painted in 1632, 8 years after his last calculating clock drawing. Wilhelm Schickard (22 April 1592 – 24 October 1635) was a German professor of Hebrew and astronomy who became famous in the second ...

3. Aspect ratio (image) - Wikipedia

   en.wikipedia.org/wiki/Aspect_ratio_(image)

   Aspect ratio (image) The aspect ratio of an image is the ratio of its width to its height. It is expressed as two numbers separated by a colon, width:height. Common aspect ratios are 1.85:1 and 2.40:1 in cinematography, 4:3 and 16:9 in television, and 3:2 in still photography.

4. Single-family detached home - Wikipedia

   en.wikipedia.org/wiki/Single-family_detached_home

   Definitions. A single detached dwelling contains only one dwelling unit and is completely separated by open space on all sides from any other structure, except its own garage or shed. The definition of this type of house may vary between legal jurisdictions or statistical agencies. The definition, however, generally includes two elements:

5. Stepped reckoner - Wikipedia

   en.wikipedia.org/wiki/Stepped_reckoner

   The stepped reckoner or Leibniz calculator was a mechanical calculator invented by the German mathematician Gottfried Wilhelm Leibniz (started in 1673, when he presented a wooden model to the Royal Society of London [2] and completed in 1694). [1] The name comes from the translation of the German term for its operating mechanism, Staffelwalze ...

6. Pixel - Wikipedia

   en.wikipedia.org/wiki/Pixel

   In digital imaging, a pixel (abbreviated px), pel, [1] or picture element[2] is the smallest addressable element in a raster image, or the smallest addressable element in a dot matrix display device. In most digital display devices, pixels are the smallest element that can be manipulated through software. Each pixel is a sample of an original ...

7. Sum of absolute differences - Wikipedia

   en.wikipedia.org/wiki/Sum_of_absolute_differences

   In digital image processing, the sum of absolute differences (SAD) is a measure of the similarity between image blocks. It is calculated by taking the absolute difference between each pixel in the original block and the corresponding pixel in the block being used for comparison. These differences are summed to create a simple metric of block ...

8. Angle of view (photography) - Wikipedia

   en.wikipedia.org/wiki/Angle_of_view_(photography)

   Angle of view (photography) A camera's angle of view can be measured horizontally, vertically, or diagonally. In photography, angle of view (AOV) [1] describes the angular extent of a given scene that is imaged by a camera. It is used interchangeably with the more general term field of view. It is important to distinguish the angle of view from ...

9. Display size - Wikipedia

   en.wikipedia.org/wiki/Display_size

   Display size. On 2D displays, such as computer monitors and TVs, display size or viewable image size (VIS) refers to the physical size of the area where pictures and videos are displayed. The size of a screen is usually described by the length of its diagonal, which is the distance between opposite corners, typically measured in inches.