Shenzhen ThreeNH Technology Co., Ltd.
Shenzhen ThreeNH Technology Co., Ltd. Leader Of Color Management In China
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Streaking Measurement Test Target YE0175 Video Level Disturbance Measurement Test Chart
The YE0175 is designed for measurement of the disturbance caused by the video level in black areas to the right of or below the areas. Horizontal white lines are positioned on a black background.
Definition of streaking measurements
Measurement of the disturbance caused by the video level in black areas to the right of or below the areas.The disturbance is characterized by measuring the duration of the delay before the video level corresponding to the normal video level of the black is restored.
Measuring equipment
Video level meter; B/W monitor, oscilloscope, low-pass filter: 500 KHz
Measurement conditions
The chart illumination must be adjusted so that the white bars give a signal of 100% with average iris setting.
Gain: 0dB
Gamma corrector: OFF
Contour corrector: OFF
Knee corrector: OFF
Pedestal = 5% of nominal video level (= 35 mV)
Measurement procedure
The lines crossing the white lines are displayed on the oscilloscope and a measurement is made at the R, G, B outputs. The measurement is repeated at various taking account of the nature of the streaking observed on a control monitor. In order to distinguish the effects of flare from the effects of streaking, a different measurement may be made taking as reference the number of lines not crossing the white surface which are affected only by flare.
Presentation of results
Worst peak deviation of black level in the streak compared with an adjacent black outside the streak. Care must be taken to avoid the effect of flare from the white bar. The result is given in percent of nominal amplitude 700 mV / 75 Ohms.
Specifications
| Test chart name | Model | Transmission/Reflection | Size | Thumbnail |
| Streaking Measurement Test Chart | YE0175 D240 4:3 | Transmission | Picture size:240*180mm Chart size:320*290mm | |
| YE0175 A280 4:3 | Reflection | Picture size:280*210mm Chart size:365*305mm | |
Suzie Xia
International Sales Dept.
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Shenzhen ThreeNH Technology Co., Ltd
Add: 4/F, Building 8, Nangang Second Industry Zone, Xili, Nanshan District, Shenzhen, 518055 China.
Tel: 0086-755-27198826 Ext: 601
Fax: 0086-755-27190609
Mobile: 0086-13510878132
Email: y@3nh.com
Skype: y@3nh.com
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Website: www.3nh.com/en