In the technical system of professional skin detection devices, the camera module is not merely a "image capture tool" but a core component that directly determines detection accuracy, data dimensions, and functional limits. As a professional device focused on skin detection, Meitu Eve V features a camera module whose hardware parameter design is highly aligned with the product’s core needs, forming a tight connection of "parameters support functions, and functions match scenarios". This can be analyzed in four specific aspects:
First, the combination of high pixels and high-quality Sensor lays the foundation for capturing skin micro-features. One of the core needs of skin detection is to accurately identify millimetric or even micrometric features such as spots, fine lines, and pores, which places extremely high demands on the camera’s image purity and detail resolution. Meitu Eve V adopts Sony Sensor as the core component of its camera — Sony Sensor’s advantages in color reproduction, dynamic range, and noise control can effectively avoid "feature misjudgment" caused by insufficient hardware image quality (e.g., mistaking noise for spots). Meanwhile, the module is equipped with 5 16-megapixel cameras: a single high-pixel camera ensures the clarity of local details, while the multi-camera layout achieves "full-face coverage without blind spots". Whether it is the large-area oil distribution on the cheeks or the tiny dry lines around the eyes, all can be accurately presented through high-pixel images, providing "high-definition raw data" for subsequent algorithmic analysis.
Second, the customized 3D structured light module fills the dimensional gap of traditional 2D detection. Ordinary skin detection mostly relies on 2D image analysis, which struggles to accurately determine 3D features such as skin’s three-dimensional roughness and nasolabial fold depth. However, Meitu Eve V’s camera module is specially integrated with 5 sets of customized 3D structured light — different from the general 3D solutions of consumer-grade devices, the parameters of this structured light module have undergone "special calibration for skin scenarios": the light pattern density and projection angle of the transmitting end are optimized for facial contours, and the camera of the receiving end is calibrated synchronously with the light pattern, enabling the rapid construction of a skin 3D model with millimetric accuracy. For example, when detecting "pore size", a 2D image can only show the "planar size" of pores, while the 3D structured light module can capture the "depth information" of pores, distinguishing between "shallow pores" and "deep sunken pores" to make the detection results more consistent with the actual skin condition.
Third, the large aperture and auto-focus technology ensure the stability and consistency of the detection scenario. Meitu Eve V is mostly used in a "closed detection environment inside the light shield". Although the light system provides assistance, the light intake and focusing accuracy of the camera still directly affect data stability — the module adopts an f/1.8 large aperture, which can capture more light under the same light conditions and reduce image blurriness caused by insufficient light. At the same time, it is equipped with Focus Pixels auto-focus technology, and the focusing area is specially optimized for "key facial areas" (such as the T-zone, around the eyes, and jawline). During each detection, it can quickly lock onto the same reference position, avoiding "differences in detection data of the same user across different sessions" caused by manual focusing deviations and ensuring the comparability of detection results.
Fourth, the collaborative design of multiple cameras, combined with the light system, enables "multi-dimensional data collection". Skin detection requires obtaining multi-dimensional information such as "surface texture, oil distribution, deep metabolism, and three-dimensional contours", which cannot be covered by a single camera. The 5 cameras of Meitu Eve V have clear divisions of labor: some cameras work with RGB white lights to capture the "skin state under natural light", some work with vertical/horizontal polarized lights to analyze "oil and surface texture", others work with Wood’s lamps and ultraviolet lights to detect "deep information such as porphyrins and fats", and the 3D structured light camera focuses on "3D model construction". This multi-camera collaboration model essentially uses the hardware division of labor of the module to form a "1+1>2" synergy effect with the light system, allowing the device to collect multi-dimensional skin data at one time and meet the "comprehensiveness" requirement of professional detection.
From Meitu Eve V’s design, it can be seen that the connection between professional skin detection products and camera modules is essentially "detection needs defining module parameters in reverse" — it does not pursue "parameter stacking", but every hardware indicator (pixels, Sensor, aperture, structured light) corresponds to specific detection functions. Ultimately, through the precise design of the module, the core goal of "converting from image capture to effective data transformation" is achieved.