Shenzhen ThreeNH Technology Co., Ltd.
| Payment Terms | T/T,Paypal |
| Supply Ability | 1000pcs/month |
| Delivery Time | within 3-5 working days after payment confirmed |
| Packaging Details | Standard Export Package |
| Brand | SineImage |
| Usage | analysis of 'texture loss' |
| OEM | Yes |
| Light Source | Can be equiped with light box |
| D | 0.75 |
| transmission | 18% |
| Model | TE276 |
| Brand Name | SineImage |
| Model Number | COLOR CAMERA GRAY SCALE TEST CHART |
| Certification | CE&RoHS&TUV&FCC&ISO9001 |
| Place of Origin | Shenzhen, China |
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Product Specification
| Payment Terms | T/T,Paypal | Supply Ability | 1000pcs/month |
| Delivery Time | within 3-5 working days after payment confirmed | Packaging Details | Standard Export Package |
| Brand | SineImage | Usage | analysis of 'texture loss' |
| OEM | Yes | Light Source | Can be equiped with light box |
| D | 0.75 | transmission | 18% |
| Model | TE276 | Brand Name | SineImage |
| Model Number | COLOR CAMERA GRAY SCALE TEST CHART | Certification | CE&RoHS&TUV&FCC&ISO9001 |
| Place of Origin | Shenzhen, China | ||
| High Light | camera resolution chart ，camera lens test chart | ||
The TE276 Dead Leaves Target is used for the analysis of 'texture loss', which is the loss of low contrast, fine details in images due to noise reduction or other image processing techniques.
The TE276 consists of four items:
• Background
All following items are placed on a neutral gray background with a gray level of 18%
• Registration marks
Four registration marks are placed on the test chart, one in each corner. These marks are used for the automatic registration in analysis software, e.g. the Image Engineering iQ-Analyzer
• Gray patches
The chart contains 16 gray patches. The reflection of these patches is linear spaced between the brightest patch and the darkest patch.
• Dead Leaves Pattern
The main item is the so called Dead Leaves pattern. This pattern consists of circles stacked on top of each other with a know probability distribution of position, radius and digital value of channel R, G and B. The contrast is limited to 20% of the maximum achievable contrast.
For the software based analysis of images, captured of the TE276, you can use the Image Engineering iQ- Analyzer Version 6 and newer. This software will provide the Spatial Frequency Response (SFR) measured on this target.
Recommended usage:
We recommend to reproduce the chart with the device under test in that way, that the chart fills not more than 1/3 of the image height.
In case this chart fills 1/3 of the image height it can be used for cameras with a sampling rate of up to 30 Megapixels.
The analysis procedure behind this test chart is described in this paper:
“Description of texture loss using the dead leaves target: current issues and a new intrinsic approach”, Kirk, Herzer, Artmann, Kunz, Proc. SPIE 9023, Digital Photography X, 90230C (7 March 2014); doi: 10.1117/12.2039689
The Dead Leaves pattern and its properties are described in this paper:
"Occlusion Models for Natural Images: A Statistical Study of a Scale-Invariant Dead Leaves Model"
by Ann Lee, David Mumford, and Jinggang Huang , International Journal of Computer Vision 41(1/2), 35-59, 2001
Related Chart:
About Us:
Contact Information:
Contact Person: Clara Liu;
Email: L001@3nh.com;
Wechat & Whatsapp ID: +8613510310267;
Skype: clara.3nh
Company Details
Business Type:
Manufacturer
Year Established:
1998
Total Annual:
10000-50000
Employee Number:
100~200
Ecer Certification：
Active Member
3nh, Tilo and Sine image are all registered brands of the company. Shenzhen ThreeNH Technology Co., Ltd. (www.3nh.com) is a national high-tech enterprise. It is a large brand enterprise integrated by the famous trademark "3nh" and "Tilo" in the color measurement industry in terms... 3nh, Tilo and Sine image are all registered brands of the company. Shenzhen ThreeNH Technology Co., Ltd. (www.3nh.com) is a national high-tech enterprise. It is a large brand enterprise integrated by the famous trademark "3nh" and "Tilo" in the color measurement industry in terms...
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