TE197
Evaluate the OECF of a digital camera based on ISO 14524 and ISO 16505
Test chart TE197 is designed for evaluating the opto-electronic conversion function (OECF) of a digital camera according to ISO 14524, methods for measuring OECF, and ISO 16505.
ISO 16505:2015 (currently under review) describes the requirements and test procedures for the minimum safety, ergonomic, and performance requirements for Camera Monitor Systems that replace rearview mirrors of road vehicles.
The example chart presented in ISO 16505 for OECF measurements has a different layout than the TE197. The standard states that the OECF measurement must be compliant to ISO 14524 or ISO 15739 (it is important to note that completely different groups have created these standards) both of which clearly define an OECF test chart as having a circular arrangement of grey patches, as opposed to the parallel lines of grey patches shown in the standard. A circular layout prevents grey levels from being affected differently by shading. Using this interpretation of the text, we have designed TE197 accordingly.
The chart layout consists of a 12-step circular grayscale and is available as either a reflective or transparent chart (only available as transparent in the bundle). The iQ-Analyzer supports test chart TE197.
TE197 can be purchased individually or as a part of the ISO 16505 chart bundle. The bundle includes all of the relevant charts that are described in the standard for evaluating the performance of Camera Monitor Systems for road vehicles.
| 材質 | 反射式, 透射式 |
|---|---|
| 尺寸 | A280, A360, A460, A1066 |
| 長寬比 | 16:9 |
| 圖卡對比 | 20:1, 80:1, 160:1 |
其他文件
Chart Sizes
Chart sizes
The test charts are available in the sizes listed below. Please note that some charts cannot be manufactured in all sizes due to technical reasons. Please do not hesitate to ask for additional information.
During production, specific regions of test charts are measured to qualify the production process or to create individual reference data accompanying a test chart additionally. Measured regions can be color or gray tones.
The measurement devices are calibrated regularly and proven before use. You can find further information in our reference data accuracy sheet.
Reflective
| Picture size w x h [mm] | Chart size w x h x d [mm] | ||
|---|---|---|---|
| 4:3 | 16:9 | ||
| A1066 | 800 x 600 | – | 1245 x 835 x 3.2 |
| A1066 | – | 1066 x 600 | 1400 x 835 x 3.2 |
| A540 | 540 x 405 | 540 x 303.75 | 600 x 500 x 3.2 |
| A460 | 460 x 345 | 460 x 258.75 | 600 x 500 x 3.2 |
| A444 | – | 444.4 x 250 | 600 x 500 x 3.2 |
| A360 | 360 x 270 | 360 x 202.5 | 500 x 400 x 3.2 |
| K360 | – | 360 x 202.5 | 390 x 271 x 2.1 |
| A280 | 280 x 210 | 280 x 157.5 | 365 x 305 x 3.2 |
| K280 | 280 x 210 | 280 x 157.5 | 334 x 271 x 2.1 |
| P280 | May vary in size with the chart layout | 334 x 271 x 2.1 | |
| K180 | – | 180 x 101 | 204 x 164 x 2.1 |
| K160 | 160 x 120 | – | 204 x 164 x 2.1 |
A charts (size 280/360/460) are mounted on aluminium plates.
A charts (size 1066) are mounted on aluminum composite panels (aluminum dibond).
K charts mounted on black polystyrene plates are only available in combination with the test chart folders
P charts are mounted on black polystyrene plates.
Transparent
| Picture size w x h [mm] | Chart size w x h x d [mm] | ||
|---|---|---|---|
| 4:3 | 16:9 | ||
| D280 | 280 x 210 | 280 x 157.5 | 360 x 280 x 4.6 |
| D240 | 240 x 180 | 240 x 135 | 320 x 290 x 4.6 |
| D240S | 240 x 180 | 240 x 135 | 360 x 280 x 4.6 |
| D205 | 205 x 153 | 205 x 115.3 | 253 x 202 x 3.5 |
| D120 | 120 x 90 | 120 x 67.5 | 155 x 135 x 4.0 |
| D35 | 32 x 24 | – | 50 x 50 x 3-4 |
D35 charts are either between glass plates or mounted in slide frames (glassless).
There are exceptions regarding mounting and size for special charts.
Suitable transparent charts for the following illuminators
| D280 / D240S | D240 | D205 | |
|---|---|---|---|
| Spherical transparency illuminator LE6/LE7 Lightbox illuminator LG3 Sony Pattern Box |
DNP standard viewer | Porta Pattern spherical transparency illuminator |
|
| With adapter | Spherical transparency illuminator LE6/LE7 Lightbox illuminator LG3 |
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