nd reversing, covering parameter requirements and test methods related to optical performance, imaging q... rmance testing content covers the definitions and test methods for objective evaluation metrics such as ... 率.png?900|}}
**Method:**\\
The DUT (Device Under Test) is tested in operating mode B1 (i.e., the test sample is normally electrically connected, all function
==== Test Cases ====
This section provides practical test cases for image quality evaluation, organized by application:
* **Camera Test Cases**
* [[en:yanding:image_quality_evaluation:test_cases:camera_test_cases:image_quality_evaluation|
:**\\
The CMS luminance and contrast reproduction test simulates the lighting challenges of real-world d... and the maximum illuminance on the surface of the test object shall not exceed 2.0 lx;\\
c) Under night ... conditions are as follows:\\
**Direct Sunlight:** Test chart (1), chart illumination light source (2), camera under test (5), monitor illumination light source (6), monit
rehensively regulates the technical requirements, test methods, and inspection rules of the system, aimi... thermal radiation energy to high brightness.\\
**Test Operating Modes**\\
**Operating Mode A** (DUT not... nctions operate normally.\\
**Image Performance Test Requirements and Methods**\\
**1. Resolution**\\
... *Requirement:** Not less than 640×512 pixels.\\
**Test Method:** Test the output video signal using a vi
==== How to Choose the Right Test Chart? ====
In image quality evaluation (e.g., for cameras, LiDAR, etc.), test charts are standardized and reproducible core too... the purposes, parameters, and selection logic of test charts, as well as chart materials, mounting, usa... you precisely match testing requirements and use test charts correctly.\\
**I. What is a Test Chart? —
(DoF) of a [[en:yanding:image_quality_evaluation:test_cases:cms_test_cases:cms|CMS (Camera–Monitor System)]] refers to the object-distance range behind the v... ble.\\
| {{ :en:yanding:image_quality_evaluation:test_cases:cms_test_cases:cms景深-_2_.png?680 |}} |
| Fig. 1: Optical diagram of circle of confusion formati
tion is finished) //
==== IEEE 2020-2024 Flicker Test ====
**1. Definition of Flicker**
__**Flicker**... cycle, as well as the camera's frame rate.
**3. Test Equipment and Setup**\\
**"Illuminant Flicker":**... ithin the field of view (FOV) of the device under test (DUT), in front of a static, uniform neutral back... s must remain within the DUT's FOV throughout the test. The "ON" reference light source must be identica
ly 70-90dB). Stray light may also be misjudged as test chart signals, leading to falsely high DR measure... :camera测试用例:眩光.png?200|}}
2. **The design of the test chart determines the size of the glare caused in ... ta. This means it is impossible to have a perfect test chart suitable for all conditions.
3. **Exposure... a with black velvet, except for the lens.
**III. Test Equipment**\\
In dynamic range testing, a standar
erview**\\
**The ISO 15739 standard specifies the test methods for noise and dynamic range of digital ca... al}$ is the total noise of the target patch.\\
**Test Chart**\\
The test chart used is based on the test chart described in ISO 14524 (see Figures 1, 2, and 3), and can be eith
finished) //
==== IEEE 2020-2024 Standard Flare Test ====
** I. Definition of Flare **
Flare refers ... n due to manufacturing tolerances
** III. Flare Test Methods **
The flare test defined in this standard includes two test methods: **Flare A** and **Flare B**:
** (1) Flare A Test:
ficiency, pixel gain, and fill factor.
**3. Core Test Items**\\
The **Linear Model** is a white-box mod... |}}
**Taking the General Model as an example, its test items are:**\\
** 1. Sensitivity and Noise**\\
... thmic histograms and cumulative histograms.
**3. Test Methods**\\
**1. Quantum Efficiency**\\
**(1) Lin... \mu_y - \mu_{y,\text{dark}}}{K \mu_p} \tag{3}$$
**Test Equipment:** (Release 4.0 Linear 9.1)\\
**Broadba
*How to Measure?**\\
**Environment Setup**\\
The test chart can be either reflective or transmissive, a... up | Transmissive chart environment setup |
**Test Conditions:**\\
* **Reflective test chart:** The illuminance on the chart surface shall be 1000 lx to 2000 lx;\\
* **Transmissive test light box:** The luminance of the surface source
dity of long-distance point clouds.
**IV. How to Test the Ranging Capability of LiDAR?**\\
In autonomou... utput at that distance. The following details the test conditions, operational steps, and result determi... h the relevant provisions of GB/T 45500-2025.\\
**Test Conditions**\\
**Long-range detection capability:... al conditions for long-range detection capability test ^
| {{ :yanding:成像质量评价:工具:激光雷达:测距能力5.png |}} |
g, it is necessary to select an appropriate image test chart to evaluate the CA value of an imaging syst... a standard image quality laboratory, professional test charts are photographed, and software analysis is... esults to check the lateral CA value. The optimal test positions for lateral chromatic aberration are the left and right edges of the test chart. Since lateral chromatic aberration is most
qc_t_1128_2019 @en:yanding:image_quality_evaluation:standardized_testing
