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2. Snell & Wilcox Zone Plate - Wikipedia

   en.wikipedia.org/wiki/Snell_&_Wilcox_Zone_Plate

   Snell & Wilcox SW2 and SW4 "Zone Plate" Test Chart (also referred to as Snell & Wilcox Test Pattern) were TV test cards introduced in the 1990s and used with NTSC, PAL and SDTV systems. [ 1 ] Popular versions of the test charts were made available on Laserdisc and DVD-Video , allowing home users and professionals to test and calibrate their ...

3. 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.

4. Video calibration software - Wikipedia

   en.wikipedia.org/wiki/Video_calibration_software

   Video calibration software is software used to improve the quality of commercial video reproduction.. Organizations such as the Society for Motion Picture and Television Engineers (SMPTE), the Commission Internationale de l'Eclairage, the Advanced Television Systems Committee (ATSC), and the International Telecommunication Union (ITU) have established standards for the proper transmission and ...

5. HCT Co., Ltd. - Wikipedia

   en.wikipedia.org/wiki/HCT_Co.,_Ltd.

   HCT Co., Ltd. is a South Korean compliance testing and equipment calibration company that also develops particle counters and antennas. Founded in 2000 as Hyundai Calibration & Certification Technologies Co., the company is a spin-off from Hyundai Electronics, the world's second-largest memory chipmaker. HCT has testing and calibration sites in ...

6. Quattron - Wikipedia

   en.wikipedia.org/wiki/Quattron

   Quattron is the brand name of an LCD color display technology produced by Sharp Electronics.In addition to the standard RGB (Red, Green, and Blue) color subpixels, the technology utilizes a yellow fourth color subpixel (RGBY) which Sharp claims increases the range of displayable colors, [1] [2] and which may mimic more closely the way the brain processes color information.

7. Calibration - Wikipedia

   en.wikipedia.org/wiki/Calibration

   The formal definition of calibration by the International Bureau of Weights and Measures (BIPM) is the following: "Operation that, under specified conditions, in a first step, establishes a relation between the quantity values with measurement uncertainties provided by measurement standards and corresponding indications with associated measurement uncertainties (of the calibrated instrument or ...

8. 5 top alternatives to cable TV in 2025: How to cut the cord ...

   www.aol.com/finance/alternatives-to-cable-tv...

   Join the growing club of cord-cutters with cable TV alternatives for sports fans, savings seekers, customized options — and best all-around. Updated for 2025.

9. Indian-head test pattern - Wikipedia

   en.wikipedia.org/wiki/Indian-head_test_pattern

   The Indian-head test pattern is a test card that gained widespread adoption during the black-and-white television broadcasting era as an aid in the calibration of television equipment. It features a drawing of a Native American wearing a headdress surrounded by numerous graphic elements designed to test different aspects of broadcast display.