Device and method for quickly evaluating image signal-to-noise ratio of laparoscope image system
An imaging system and evaluation device technology, applied in the field of laparoscopic imaging, can solve the problems of cumbersome operation and long time consumption, and achieve the effect of simple operation, short processing time, and reduced manual participation
Pending Publication Date: 2020-03-24
GUANGDONG OPTO MEDIC TECH CO LTD
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[0006] The purpose of the present invention is to provide a laparoscopic imaging system image signal-to-noise ratio rapid evaluation device and method, aiming at solving the problem that the existing laparoscopic imaging system needs to shoot images at least 10 levels of light source brightness when evaluating the image noise, and the operation is cumbersome , time-consuming problems; at the same time, the evaluation process realizes fully automatic positioning and sampling without manual participation, reducing uncertain factors and improving reliability
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[0037] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0038] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating ...
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The invention discloses a device and a method for quickly evaluating an image signal-to-noise ratio of a laparoscope image system. The light passes through a light transmission test card comprising atleast ten areas with different transmissivity. Ten images with different brightness can be obtained by shooting one image, and the signal-to-noise ratio value of the camera system can be rapidly analyzed and calculated in cooperation with the adaptive analysis function of the system. The whole processing process has few steps, the operation is simple, and 10 pieces of image data with different brightness can be obtained by shooting one image; the whole processing time is short, a value area is automatically positioned through a software algorithm, and full-automatic operation is achieved; theaccuracy is higher, the reliability of overall operation is improved through automatic operation, human hand participation is reduced, uncertain factors are reduced, and therefore the accuracy is improved.
Description
technical field [0001] The present invention relates to the field of laparoscopic imaging, in particular to a laparoscopic imaging system image signal-to-noise ratio rapid evaluation device and method. Background technique [0002] Laparoscopic imaging system has been widely used in minimally invasive surgery, which consists of light source, lens and image processing equipment. Entering the human body through the natural channels of the human body or through small incisions made by surgery, you can directly peek at the changes in the relevant parts, making the disease invisible. At the same time, the wound is smaller than traditional surgery, causing less harm to the patient and faster recovery time . [0003] The high-quality laparoscopic imaging system can provide surgeons with high-quality video images, clearly presenting the conditions of various biological tissues such as organs and blood vessels in the cavity. In particular, noise is an important parameter to measure...
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Login to View More IPC IPC(8): H04N7/18H04N17/00
CPCH04N7/18H04N17/002
Inventor 梁江荣张浠安昕
Owner GUANGDONG OPTO MEDIC TECH CO LTD