研鼎知识库 en:yanding:image_quality_evaluation:test_cases:cms_test_cases

en:yanding:image_quality_evaluation:test_cases:cms_test_cases:cms

Anonymous (anonymous@undisclosed.example.com) — 2026-07-10T08:03:24+00:00

FIXME This page is not fully translated, yet. Please help completing the translation. (remove this paragraph once the translation is finished) CMS Concept The Camera Monitor System (CMS), commonly referred to in the industry as the electronic rearview mirror

en:yanding:image_quality_evaluation:test_cases:cms_test_cases:cms_color_reproduction

Anonymous (anonymous@undisclosed.example.com) — 2026-07-10T08:03:28+00:00

FIXME This page is not fully translated, yet. Please help completing the translation. (remove this paragraph once the translation is finished) CMS Color Reproduction Concept CMS Color Reproduction refers to the ability of the Camera Monitor System (CMS) to accurately reproduce the colors of the original scene on the in-vehicle monitor after capturing the scene information around the vehicle via external cameras, followed by image processing and transmission. It encompasses the precise repr…

en:yanding:image_quality_evaluation:test_cases:cms_test_cases:cms_depth_of_field

Anonymous (anonymous@undisclosed.example.com) — 2026-07-10T08:03:26+00:00

FIXME This page is not fully translated, yet. Please help completing the translation. (remove this paragraph once the translation is finished) CMS Depth of Field Definition: CMS depth of field refers to the distance range over which the imaging resolution of a $$MTF10_{(1:1)} \geq 0,9^*MTF10_{MIN(1:1)} \left[ \text{LW/PH} \right]\tag{1}$$$$MTF10_{(1:1)} \geq \frac{1}{2} MTF10_{MIN(1:1)} \left[ \text{LW/PH} \right]]\tag{2}$$$MTF10$

en:yanding:image_quality_evaluation:test_cases:cms_test_cases:cms_directional_uniformity

Anonymous (anonymous@undisclosed.example.com) — 2026-07-10T08:03:26+00:00

FIXME This page is not fully translated, yet. Please help completing the translation. (remove this paragraph once the translation is finished) CMS Directional Uniformity 1. Definition CMS (Camera Monitor System), commonly referred to in the industry as an electronic rearview mirror, uses a $$\frac{\max\left\{ \left| L_i - L\left( \Theta_{\text{monitor}/D}, \Phi_{\text{monitor}/D} \right) \right| \right\}}{L\left( \Theta_{\text{monitor}/D}, \Phi_{\text{monitor}/D} \right)} < 35\%$$$$\frac{\…

en:yanding:image_quality_evaluation:test_cases:cms_test_cases:cms_dual_point_light_source

Anonymous (anonymous@undisclosed.example.com) — 2026-07-10T08:03:25+00:00

FIXME This page is not fully translated, yet. Please help completing the translation. (remove this paragraph once the translation is finished) CMS Dual-Point Light Source What is CMS? With the development of automotive electronics, the Camera Monitor System ($$\text{PLSDF} = \frac{S_{\text{H}} \times L_{\text{H},\text{max}}}{S_{\text{V}} \times L_{\text{V},\text{max}}}$$$$\text{PLSCF} = \left(1 - \frac{L_{\text{H},\text{min}}}{L_{\text{H},\text{max}}}\right)$$$\alpha_{PLS}$

en:yanding:image_quality_evaluation:test_cases:cms_test_cases:cms_frame_rate

Anonymous (anonymous@undisclosed.example.com) — 2026-07-10T08:03:29+00:00

FIXME This page is not fully translated, yet. Please help completing the translation. (remove this paragraph once the translation is finished) I. Definition CMS frame rate refers to the total number of valid images completely displayed by the vehicle Camera Monitor System (CMS) per unit of time, encompassing image capture, processing, transmission, and display. The unit is

en:yanding:image_quality_evaluation:test_cases:cms_test_cases:cms_geometric_distortion

Anonymous (anonymous@undisclosed.example.com) — 2026-07-10T08:03:25+00:00

FIXME This page is not fully translated, yet. Please help completing the translation. (remove this paragraph once the translation is finished) CMS Geometric Distortion Concept In the Camera Monitor System (CMS), distortion refers to the deviation of the imaging result from the ideal projection model, and its definition varies depending on the ideal reference.$h_{ideal}$$\text{RadialDistortion} = \frac{\Delta h}{h_{ideal}} = \frac{h_{monitor} - h_{ideal}}{h_{ideal}} = \frac{h_{monitor}}{h_{…

en:yanding:image_quality_evaluation:test_cases:cms_test_cases:cms_glare

Anonymous (anonymous@undisclosed.example.com) — 2026-07-10T08:03:28+00:00

FIXME This page is not fully translated, yet. Please help completing the translation. (remove this paragraph once the translation is finished) CMS Glare CMS glare refers to the optical interference phenomenon in a Camera Monitor System (CMS) during driving scenarios, where strong direct or reflected light causes multiple unintended reflections and scattering on the lens surfaces and inside the lens barrel, resulting in an overall decrease in image contrast and the appearance of large bright…

en:yanding:image_quality_evaluation:test_cases:cms_test_cases:cms_gray_level_reproduction

Anonymous (anonymous@undisclosed.example.com) — 2026-07-10T08:03:27+00:00

FIXME This page is not fully translated, yet. Please help completing the translation. (remove this paragraph once the translation is finished) CMS Gray Scale Reproduction Test Method: Display the gray scale test chart on the monitor, measure the luminance of each gray patch displayed on the monitor, calculate the lightness of each gray patch according to Formula (1), and then calculate the lightness difference between adjacent gray patches according to Formula (2). The requirement is that …

en:yanding:image_quality_evaluation:test_cases:cms_test_cases:cms_horizontal_uniformity

Anonymous (anonymous@undisclosed.example.com) — 2026-07-10T08:03:27+00:00

FIXME This page is not fully translated, yet. Please help completing the translation. (remove this paragraph once the translation is finished) CMS Horizontal Uniformity 1. Definition CMS (Camera Monitor System), commonly referred to in the industry as an electronic rearview mirror, uses a $$\frac{\max\left\{ \left( L_{j/\text{white}}(\Theta, \Phi) \right) \right\} - \min\left\{ \left( L_{j/\text{white}}(\Theta, \Phi) \right) \right\}}{\max\left\{ \left( L_{j/\text{white}}(\Theta, \Phi) \ri…

en:yanding:image_quality_evaluation:test_cases:cms_test_cases:cms_luminance_contrast_reproduction

Anonymous (anonymous@undisclosed.example.com) — 2026-07-10T08:03:24+00:00

FIXME This page is not fully translated, yet. Please help completing the translation. (remove this paragraph once the translation is finished) CMS Luminance and Contrast Reproduction Definition: The CMS luminance and contrast reproduction test simulates the lighting challenges of real-world driving environments to verify the $L_{High}$$L_{Low}$$CR = \frac{L_{monitor/chart/white/ambient}}{L_{monitor/chart/black/ambient}}$

en:yanding:image_quality_evaluation:test_cases:cms_test_cases:cms_pre_test

Anonymous (anonymous@undisclosed.example.com) — 2026-07-10T08:03:30+00:00

FIXME This page is not fully translated, yet. Please help completing the translation. (remove this paragraph once the translation is finished) Pre-CMS Testing Before CMS testing, it is necessary to confirm the provided equipment information and functions. The relevant parameters are as follows:

en:yanding:image_quality_evaluation:test_cases:cms_test_cases:cms_sharpness

Anonymous (anonymous@undisclosed.example.com) — 2026-07-10T08:03:29+00:00

FIXME This page is not fully translated, yet. Please help completing the translation. (remove this paragraph once the translation is finished) CMS Sharpness Why Measure Sharpness in CMS? As an electronic replacement for traditional optical rearview mirrors, the $$\text{MTF}50_{\langle 1:1 \rangle} \geq \frac{1}{2}\text{MTF}10_{\text{MIN}\langle 1:1 \rangle} \left[ \frac{\text{LW}}{\text{PH}} \right]$$$$\text{MTF}50_{\langle 1:1 \rangle} \geq \frac{1}{2} \times \left( \frac{1}{2} \text{MTF…