4K UITRA HD

Connection diagram

Super clear

4k Ultra HD

ZR4 products support 4K Ultra HD, provide a physical resolution of 3840*2160 and a horizontal resolution of ≥1800 lines, which are twice the width and height of ordinary full HD (1920*1080) and four times the area. The total number of pixels has reached More than 8 million, can clearly display every detail in the picture, every close-up. R4 can show doctors the fine blood vessels, nerves, lymphatic vessels, fat and other human tissues during surgery, thereby effectively helping doctors perform precise surgical treatments.


4k超高清

Rich colors

Color reproduction: rec.2020 wide color gamut

The ZR4 4K UHD camera system supports the rec.2020 color gamut standard. Compared with the rec.709 color gamut range supported by the 1080P FHD system, the performance in the CIE 1931 color gamut space is: rec.2020 can cover 75.8% of the color gamut range. And BT.709 can only cover 35.9% of the color gamut. It can be seen that the color gamut coverage of the ZR4 4K UHD system is more than twice that of the traditional 1080P FHD system, so the video image of the ZR4 4K UHD system has richer color expression and more accurate color reproduction, with color difference ΔC00<3.

4k超高清

Image Processing

Implementation principle

ZR4 adopts a new generation of image quality engine, using both spatial domain and frequency domain methods, to carry out global and local enhancement of the image, and it is more excellent in the processing of details and black/white fields, bringing a deep sense of picture quality. With the brightness and color sharpening, the edge details of the picture are enhanced, and the adaptive noise reduction and intelligent pixel compensation are used to improve the overall clarity of the picture.


Image enhancement ZR4 uses filtering algorithms such as Gabor to extract the characteristics of blood vessels in medical images based on the simple cell response characteristics of the visual cortex of vertebrate brains and enhance the blood vessels to make the blood vessels clearly visible during the operation.

Intelligent noise reduction Artificial intelligence noise reduction technology analyzes the difference between the details and noise in the video in real time as a whole, so as to quickly locate the location of the noise and the details of the image. Accurately restore noise to details.

Strong light suppression in the image, the video information of the strong light part is processed by DSP, and the signal brightness of the video is adjusted to the normal range to avoid too much front and back contrast in the same image.

The shading correction adopts a new generation of image quality engine, with brightness and color sharpening, enhancing the edge details of the picture, with adaptive noise reduction and intelligent pixel compensation, improving the overall clarity of the picture.

Video case

4k Ultra HD Case Video 1

Video description: 9_Leica_Microsystems_innovations_in_surgical_microscopy_featured_on_renowned_television_series_05

4k Ultra HD Case Video 2

Video description: 9_Leica_Microsystems_innovations_in_surgical_microscopy_featured_on_renowned_television_series_05


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