# US 11,998,353 B2 · Camera having transdermal optical imaging function > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,998,353 B2 - Document ID: US11998353B2 - Status: Granted - Kind: B2 - Application number: 17/390,439 - Filed: 2021-07-30 - Published: 2021-11-18 - Granted: 2024-06-04 - Earliest claimed: 2019-08-07 - Assignees: Hangzhou Zemingrui Equity Investment Co., Ltd. - Applicants: Hangzhou Zemingrui Equity Investment Co., Ltd. - Inventors: Xugang Shi; Enrui Shi - Web page: https://patentgrep.com/patent/US11998353B2 ## CPC - A61B 5/489: {Blood vessels} - A61B 5/004: {adapted for image acquisition of a particular organ or body part (A61B5/0082 takes precedence; arrangements for optical scanning A61B5/0062)} - A61B 5/0075: {by spectroscopy, i.e. measuring spectra, e.g. Raman spectroscopy, infrared absorption spectroscopy (A61B5/0071 takes precedence)} - G06V 10/56: relating to colour - G06V 10/751: {Comparing pixel values or logical combinations thereof, or feature values having positional relevance, e.g. template matching} - G06V 40/10: Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands - H04N 23/55: Optical parts specially adapted for electronic image sensors; Mounting thereof - H04N 23/555: {for picking-up images in sites, inaccessible due to their dimensions or hazardous conditions, e.g. endoscopes or borescopes} - H04N 25/534: depending on the spectral component - A61B 5/02007: {Evaluating blood vessel condition, e.g. elasticity, compliance} - G06V 40/14: Vascular patterns - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - G06V: IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION ## Abstract A camera having blood optical imaging function, comprising: a lens, an image sensor, a main control module, a blood optical imaging algorithm module and an IP network interface module; the lens is located at the image acquiring position of the camera; the output end of the image sensor are in electric connection with input ends of the main control module and the blood optical imaging algorithm module, respectively; the main control module is in electric connection with the blood optical imaging algorithm module and the IP network interface module, respectively. The blood optical imaging algorithm is directly applied to the camera, so that the algorithm module can directly acquire original RGB data from the sensor, improving the accuracy of detection and the quality of blood vessel imaging, and achieving remote detection of the blood optical images of a face, while detecting the blood optical images of a moving face. ## Claims ### Claim 1 A camera having blood optical imaging function, comprising: a lens (1), an image sensor (2), a main control module (3), a blood optical imaging algorithm module (4) and an IP network interface module (5); the lens (1) is located at an image acquiring position of the camera; an output end of the image sensor (2) are in electric connection with input ends of the main control module (3) and the blood optical imaging algorithm module (4), respectively; the main control module (3) is in electric connection with the blood optical imaging algorithm module (4) and the IP network interface module (5), respectively; the blood optical imaging algorithm module (4) is used for extracting continuously changed dynamic optical images of the face blood vessels from the RGB digital image signals, and send the same into the main control module (3) for packaging into IP data packets, ensuring a full extraction of the images; and the calculation method of the blood optical imaging algorithm module (4) comprises the following steps: S01: continuously reading the data of N frames of RGB image from the optical video images of the subcutaneous vessels of a living body as detected in the image sensor (2); S02: selecting the green component G of the image data from the continuously read RGB image data as the original data for extracting blood optical images, in which the green component G of the image data corresponds to the green pixels of the subcutaneous areas where a blood vessel is located, from which it can be determined whether a pixel is a blood vessel pixel; S03: calculating the change rule of the green component G(x,y) of each pixel in the data of continuous N frames of images, and marking and identifying all the pixel classes in the N frames of images; and S04: performing calculation to the data of the selected N frames of images to provide numerical values, from which the blood optical imaging images directed to the data of each frame of the images, that is, the blood optical images, can be obtained. ### Claim 2 (depends on 1) The camera having blood optical imaging function according to claim 1, characterized in that, the lens (1) is an optical lens, wherein the optical lens is used to focus an optical image onto the image sensing module of the image sensor (2) to obtain a complete and clear optical image. ### Claim 3 (depends on 1) The camera having blood optical imaging function according to claim 1, characterized in that, the image sensor (2) is a CCD or CMOS sensor, wherein the image sensing module of the image sensor (2) is used to output original RGB signals into the main control module (3) and the blood optical imaging algorithm module (4), so as to obtain accurate original RGB signals. ### Claim 4 (depends on 1) The camera having blood optical imaging function according to claim 1, characterized in that, the main control module (3) adopts an AI chip, wherein the main control module (3) is used for controlling the image sensor (2) and the lens (1). ### Claim 5 (depends on 4) The camera having blood optical imaging function according to claim 4, characterized in that, the controlling of the image sensor (2) and the lens (1) by the main control module (3) comprises exposure control, automatic white balance control, and lens aperture control, which ensures that the image sensor (2) and the lens (1) can acquire the best image signals. ### Claim 6 (depends on 1) The camera having blood optical imaging function according to claim 1, characterized in that, the main control module (3) can further compression encode the original images and package the same into IP signal packets after the compression encoding, wherein the formats for compression encoding comprises H.265, H.264, MPEG2, MPEG4, or MJPEG. ### Claim 7 (depends on 1) The camera having blood optical imaging function according to claim 1, characterized in that, in the step S03, the values of a pixel (G component value G(x,y) of x,y) at a certain subcutaneous position of the face in the continuous N frames of images constitute a G component sequence {G(x,y)[n]} where 0≤n