105 results about "Modulation transfer" patented technology

The invention provides an ocean vortex region one-dimensional wave spectrum inversion method based on a synthetic aperture radar, and the method comprises the steps: recognizing an ocean vortex through HY-2 fusion data, collecting a Sentinel-1 dual-polarized SAR image covering a vortex region, and obtaining WAVEWATCH-III wave mode data; a hydrodynamic modulation transfer function is improved, and a vortex shear flow influence factor is introduced; an XGBoost machine learning model is adopted, and an ocean vortex region SAR one-dimensional sea wave spectrum inversion algorithm is established; and verifying the accuracy of the SAR one-dimensional sea wave spectrum inversion algorithm. According to the method, the precision limitation of traditional wave theory inversion in a vortex region is broken through, and the one-dimensional wave spectrum inversion precision is improved.

The invention discloses an SAR (Synthetic Aperture Radar) image MTF (Modulation Transfer Function) quality evaluation method and system based on a natural scene edge, and the method comprises the steps: building a selection standard system for automatic edge screening of a natural scene SAR image, and determining a high-contrast linear edge according to the standard system; automatically detecting a high-contrast linear edge in the natural scene, and intercepting a region of interest for subsequent calculation based on the position of the linear edge; gray level distribution is extracted in the normal direction of the linear edge, and an edge spread function is constructed and used for describing gray level transition response of the imaging system in the edge area; carrying out normalization and smoothing processing on the edge spread function, and carrying out spatial domain first-order differential calculation to obtain a line spread function; and performing fast Fourier transform on the line spread function to obtain a modulation degree transfer function curve, and representing the detail transfer capability of the system under different spatial frequencies. According to the method, the imaging quality of the SAR image of the natural scene can be automatically, accurately and quantitatively evaluated under the condition that manual field arrangement is not needed.

A technique is disclosed for analyzing and displaying the extent to which the images and structures inferred by a physically seeded multiscale network correspond to genuine resolution improvement through noise insensitive point spread function deconvolution, and the extent to which they correspond to the hallucination of realistic looking structures with realistic frequency contents. A relative modulation transfer function can be computed, which can represent the distribution of frequency components in a particular reconstruction (e.g., a volumetric reconstruction from high-resolution data) that are not robustly recovered by a different reconstruction (e.g., a volumetric reconstruction via processing of low-resolution data with a trained neural network). The high-frequency portion of these frequency components can represent hallucinations introduced by a trained neural network, and can be leveraged to filter the different reconstruction prior to further use.

The invention relates to the technical field of vehicle-mounted equipment testing devices, and discloses a vibration test evaluation method and device suitable for a long-focus wide-angle vehicle-mounted camera, a plurality of cameras to be tested are installed on a six-degree-of-freedom vibration table in a darkroom, and a position-adjustable test chart card and a light source system are arranged in front of the cameras; the driving module is adopted to lighten the camera, so that remote controllable shooting is realized; configuring a test environment, and adjusting parameters such as a graphic card position and illumination; driving a camera to shoot an image card under multiple working conditions, outputting an original image sequence, and driving a module to complete a traversal test; the driving module returns a shooting result to the image analysis module, and the image analysis module analyzes imaging quality in real time, evaluates indexes such as a modulation transfer function and motion blur, and generates a multi-dimensional optical performance report; generating a multi-degree optical dimension performance report of the camera; the technical problem that a real vehicle multi-degree-of-freedom direction vibration coupling scene cannot be simulated in the prior art is solved.

The invention provides a laser frequency stabilization device and method based on optical frequency shift, and relates to the field of laser frequency stabilization, and the device comprises a first slave laser, a first frequency stabilization system, a second slave laser, a second frequency stabilization system, a master laser, an acousto-optic modulation module, and a phase-locked frequency stabilization device. The first slave laser is used for emitting first laser of a first wavelength; the main laser is used for emitting third laser with a second wavelength; the first frequency stabilization system is used for locking the first laser according to the first laser to obtain first frequency-stabilized laser; the second slave laser is used for emitting second laser with the first wavelength; the second frequency stabilization system is used for locking the second laser to obtain second frequency-stabilized laser; the acousto-optic modulation module is arranged between the first slave laser and a light path of the phase-locked frequency stabilization equipment; and the phase-locking frequency stabilization equipment is used for receiving the first frequency stabilized laser and the second frequency stabilized laser and carrying out frequency locking on the third laser according to the first frequency stabilized laser and the second frequency stabilized laser. According to the invention, the modulation transfer spectrum and the optical frequency shift can be combined to complete frequency locking of the laser.

The invention discloses a partitioned scattering optical lens for myopia control and a design method of the partitioned scattering optical lens, which are applied to the technical field of optics, and aims to solve the problem that the central visual quality and the peripheral myopia control effect cannot be considered at the same time in the prior art, the optical lens comprises a central optical region, a peripheral optical region and a smooth transition zone, the central optical area is low in scattering coefficient and high in MTF, a high modulation transfer function and low scattering loss are achieved, the peripheral optical area is high in scattering coefficient and low in MTF, the central optical area is used for inducing peripheral myopic defocus, the smooth transition area is used for achieving continuous gradual change of the scattering coefficient, visual sudden change is avoided, and visual comfort is ensured. The design method comprises the steps of eye parameter acquisition, optical performance target definition, microstructure design and simulation optimization, through the scheme, effective decoupling of central vision and peripheral myopia control is achieved, high-definition vision is ensured, myopia progress is restrained, and wearing comfort is improved.

The invention discloses an image definition evaluation method. The method comprises the following steps: acquiring an original image and an optical modulation transfer function; based on the original image and the optical modulation transfer function, generating a multi-scale baseline definition response set, an information-physical definition kernel, an uncertainty measure and an evidence vector; estimating a failure posterior probability based on the evidence vector; generating a gating weight based on the failure posterior probability and the uncertainty measure; and applying the failure posterior probability and the gating weight to execute failure posterior coupling processing on the multi-scale baseline definition response set and the information-physical definition kernel to generate a final definition evaluation result. The coupling process preferably includes applying analytic bias correction and performing cross-scale band selection. According to the method, the evaluation robustness in a complex scene is improved through a failure posterior coupling mechanism.

The invention provides a hyperspectral imaging system. The hyperspectral imaging system comprises a telescope group, a collimator objective, a prism, a volume holographic diffraction grating, an imaging objective and an imaging sensor which are arranged in sequence, the telescope group is composed of a primary reflector, a secondary reflector, a third reflector, a plane reflector and an entrance slit; the primary reflector, the secondary reflector and the third reflector form an off-axis three-reflector structure; the plane reflector is used for folding a light path; the collimating objective lens, the prism, the volume holographic diffraction grating, the imaging objective lens and the imaging sensor form an imaging spectrometer, and an entrance slit is used as object space input; the formed off-axis three-mirror and folded light path and an imaging spectrometer are in coaxial butt joint by taking an entrance slit as a node, and are used for joint correction and splicing to form a hyperspectral imaging system. According to the optical path architecture, optimal matching of the unobstructed total reflection front end and the transmission type rear end is realized, and the detection sensitivity of crop weak spectrum signals is greatly improved while a better modulation transfer function of a full view field is ensured.

The invention discloses a quantitative detection method for anti-perspective performance of a textile in a complex light environment, and belongs to the technical field of new material detection, a micro gap is arranged between the textile to be detected and a variable-frequency gray scale target to simulate a non-clinging state when clothes are worn and excite Fresnel diffraction and subsurface scattering effects, and the anti-perspective performance of the textile is detected. Complex illumination conditions such as backlight and sidelight are simulated by adjusting the light intensity ratio, and after a target perspective image is acquired by using an image acquisition unit, the modulation transfer function attenuation rate of a to-be-detected textile to the target is calculated, so that the anti-perspective performance of the textile is quantitatively represented; the interference of glare on the surface of the high-gloss fabric is effectively eliminated by introducing an orthogonal polarization modulation technology, and a detection result is highly consistent with the visual perception of human eyes by adopting a specific light source spectrum simulating the skin color of a human body; compared with a traditional light transmittance method, the method has the advantages that the dimension crossing from luminous flux measurement to image information fidelity evaluation is realized, and the accuracy, reliability and practicability of detection are remarkably improved.

Fluorescence imaging system designs are described that provide larger fields-of-view, increased spatial resolution, improved modulation transfer and image quality, higher spatial sampling frequency, faster transitions between image capture when repositioning the fields-of-view, improved imaging system duty cycle and a more compact system, and thus enable higher throughput image acquisition and analysis for genomics and other imaging applications at a lower cost.

The application relates to the technical field of atomic clocks, and provides a chip optical clock based on a modulation transfer spectrum principle and an implementation method thereof. The chip optical clock comprises: an on-chip narrow-line-width laser for emitting laser; a waveguide beam splitter for splitting the laser into two beams; one beam of laser is used for inputting into an electro-optic phase modulator, and the other beam of laser is used for inputting into a MEMS atomic cell; the electro-optic phase modulator is used for phase-modulating the one beam of laser and outputting pump light; the MEMS atomic cell is used for modulating and transferring the other beam of laser based on the pump light to obtain a probe spectrum; a photoelectric detector is used for converting the detected probe spectrum into an electric signal; a high-speed servo feedback control integrated circuit is used for converting the received electric signal into a feedback control signal, inputting the feedback control signal into a feedback control port of the on-chip narrow-line-width laser, realizing full-bandwidth locking, and outputting an optical clock signal. The above-designed chip optical clock has small integration difficulty and is easy to realize full-chip optical clock.

This invention discloses a high signal-to-noise ratio modulation transfer frequency stabilization optical path device, including a light source and a frequency stabilization optical path. The light source adopts an internally adjustable fiber collimator, with a 45° reflector behind it. The frequency stabilization optical path behind the 45° reflector includes a half-wave plate and a polarizing beam splitter (PBS). An atomic gas cell and two pyramidal reflectors are sequentially arranged on the probe light path of the PBS. A half-wave plate, a 45° reflector, an electro-optic modulator, another 45° reflector, and a half-wave plate are sequentially arranged on the pump light path. The polarizing beam splitter (PBS) is located at the convergence point of the two optical paths, and a 45° reflector, a frequency stabilization optical path lens, and a photodetector are sequentially arranged behind it. This invention cleverly utilizes a folded optical path design and fine-tunes the beam divergence angle to increase the length and area of ​​the laser-atomic interaction without increasing the system volume. At the same time, it actively controls the splitting ratio of the two frequency-stabilized beams, improving the stability of the frequency stabilization.

An image sensor pixel includes a light sensor disposed in a semiconductor substrate. To provide isolation to reduce inter-pixel crosstalk and increase a modulation transfer function (MTF), an etch stop layer is disposed on a first surface of a semiconductor substrate, and a deep trench is etched on a second surface opposite the etch stop layer disposed on the first surface. Etching is stopped at the etching stop layer, and the bottom surface of the etching deep groove is the surface of the etching stop layer. At least one dielectric layer may be deposited on sidewalls and a bottom surface of the deep trench, and the remainder of the deep trench is filled with a metal or other opaque material. An image sensor pixel includes a semiconductor substrate and a photodiode disposed therein, and a metal barrier passing through the semiconductor substrate and arranged to provide optical isolation of the photodiode.

The invention relates to the technical field of distortion correction, and discloses a laser imaging wavefront distortion correction system and method based on deep learning, and the system comprises a first module which collects three intensity images; the second module is used for estimating the Zernike coefficient and the amplitude of the target complex amplitude; the third module is used for constructing a loss function; a fourth module that calculates an actuator voltage; the fifth module is used for calculating the Stell ratio and the high-frequency lifting ratio in the modulation transfer function; and the sixth module is used for re-applying the voltage of the actuator when judging that the evaluation condition is not met. According to the method, a full-process correction mechanism is constructed by integrating deep learning and an optical physical rule, and initial correction is realized by stably solving the voltage of the actuator by utilizing Tagunov regularization, so that the high-frequency detail definition in imaging is improved, the correction accuracy, real-time performance and robustness are both considered, and the method is suitable for large-scale popularization and application. And the application suitability of the laser imaging technology in the high-precision field is greatly expanded.

The invention provides an ultrathin diffraction prescription lens acceptance report output method and system, a storage medium and equipment applied to the field of lens manufacturing and quality acceptance, and the method comprises the steps: building a cross-wavelength and cross-field image quality evaluation model through defining a field-of-view sampling point set; and calculating or measuring a point spread function, a modulation transfer function, distortion and stray light and ghost image budget indexes, and feeding back measurement data such as manufacturing tolerance, residual layer difference and warping to an optimizer, thereby realizing closed-loop consistency of the whole process of'design-manufacturing-measurement-acceptance '. The system can output an acceptance report containing failure reason code mapping, threshold version information, an original data hash abstract and a digital signature, and provides support for gating decision and traceable auditing in the mass production process. According to the scheme, through the closed-loop mechanism, the consistency and traceable gating of all links of design, manufacturing, metering and acceptance are ensured.

A first optical port of vapour cell 1 receives a probe laser beam which leaves the cell via a second optical port. A first portion of the emerging probe beam is directed to optical modulator 3 which a

The invention discloses a laser frequency stabilization electric control system based on a modulation transfer spectrum, and the system is constructed based on a ZYNQ7030 heterogeneous SoC platform, and integrates laser modulation, signal collection, error extraction, feedback control and man-machine interaction functions. Comprising a sinusoidal modulation chain driven by a high-speed DAC and an electro-optical modulator which are used for realizing laser frequency modulation; the MTS signal acquisition link consists of a photoelectric detector, a low-noise amplifier and a high-speed analog-to-digital converter; feedback control is carried out on the frequency of the laser through the precise digital-to-analog converter and the current source circuit. Meanwhile, the system integrates an air cavity temperature control module, a multi-channel communication interface and a man-machine interaction module, and frequency stabilization and system management are achieved. According to the invention, high-precision and high-stability laser frequency locking based on the rubidium atom absorption spectrum can be realized without depending on an external frequency standard, and reliable frequency reference is provided for applications such as high-precision atom physical experiments, quantum sensing, spectral measurement and the like.

The invention discloses a laser based on diffraction homogenization and closed-loop frequency stabilization control, an atomic clock and an implementation method, and belongs to the technical field of quantum precision measurement and atomic clocks. The laser comprises a laser light source, a light path optimization module and a closed-loop frequency stabilization control module. The core of the optical path optimization module is that the optical path optimization module is integrated with a diffraction homogenizer which is arranged in a laser optical path and is used for converting Gaussian distribution light beams output by a laser light source into flat-topped distribution light beams with uniform light intensity, so that optical frequency shift generated when the light intensity is not uniform and acts on atoms is eliminated fundamentally. Meanwhile, in combination with a closed-loop frequency stabilization control module based on a modulation transfer spectrum technology, high-precision locking and feedback adjustment are carried out on the laser frequency. Through the synergistic effect of light beam homogenization and electronic frequency stabilization, the system frequency shift of rubidium / hydrogen / strontium / cesium atomic clocks is remarkably reduced, the frequency stability and long-term timing accuracy of the atomic clocks are improved, and the key problem that in the prior art, optical frequency shift restricts the performance of the atomic clocks is solved.

The invention discloses a device and a method for measuring an optical transfer function of a TDI optical imaging camera, and solves the problem that in the measurement of dynamic transfer function parameters of an existing optical imaging camera, a test condition close to a real on-orbit environment cannot be realized, so that the rapid and high-precision measurement of a dynamic modulation transfer function cannot be realized. The device comprises a sealing cavity formed by an experiment module and a base, a six-degree-of-freedom adjusting mechanism, an experiment module sealing mechanism, a first air floating platform, a second air floating platform, a collimator, an experiment module window, a focal plane mechanism and a control system, wherein the six-degree-of-freedom adjusting mechanism, the experiment module sealing mechanism, the first air floating platform, the second air floating platform, the collimator and the experiment module window are arranged in the sealing cavity; an on-orbit environment is simulated through the experiment module, an air floating translation platform in the focal plane mechanism drives a target to realize simulation of a dynamic target, dynamic optical transfer function measurement of the optical imaging camera in the on-orbit environment can be realized, the imaging performance of the TDI optical imaging camera in the on-orbit state can be accurately reflected, and system installation and detection can be accurately guided.

The application discloses an image sharpness evaluation method, comprising: obtaining an original image and an optical modulation transfer function; generating a multi-scale baseline sharpness response set, an information-physical sharpness kernel, an uncertainty measure and an evidence vector based on the original image and the optical modulation transfer function; estimating a failure posterior probability based on the evidence vector; generating a gating weight based on the failure posterior probability and the uncertainty measure; applying the failure posterior probability and the gating weight to perform a failure posterior coupling process on the multi-scale baseline sharpness response set and the information-physical sharpness kernel to generate a final sharpness evaluation result. The coupling process preferably includes applying an analytical bias correction and performing a cross-scale band selection. The application improves the evaluation robustness in a complex scene through a failure posterior coupling mechanism.

The application discloses a compact athermal high-definition wide-angle optical system, which comprises, in sequence from an object side to an image side along an optical axis, a first lens with negative focal power, the object side of which is a convex surface and the image side of which is a concave surface; a second lens with positive focal power, the object side of which is a concave surface and the image side of which is a convex surface; a third lens with positive focal power, the object side of which is a convex surface and the image side of which is a convex surface; a fourth lens with positive focal power, the object side of which is a convex surface and the image side of which is a convex surface; a fifth lens with negative focal power, the object side of which is a concave surface and the image side of which is a convex surface; and an infrared filter, which is located between the fifth lens and an imaging surface; the third lens is a glass spherical lens, the first lens, the second lens, the fourth lens and the fifth lens are plastic aspherical lenses, and a diaphragm is arranged between the second lens and the third lens. The full field modulation transfer function (MTF) is greater than 50% at 100 lp / mm, the maximum field of view is 140°<FOV<156°, the total optical length (TTL) is less than 15.1 mm, and the working waveband is 400-700 nm.

This application discloses an under-display fingerprint acquisition device and its adjustment method, as well as an electronic device. The under-display fingerprint acquisition device is installed in an electronic device with a screen and includes an image sensor and a lens assembly consisting of a lens box and a lens group. The adjustment method includes: calculating the theoretical optimal parameters based on the equivalent optical model of the under-display fingerprint acquisition device; obtaining multiple intermediate parameters by traversing around the theoretical optimal parameters according to a selected step size, and adjusting the under-display fingerprint acquisition device with the intermediate parameters to acquire stripe cards to obtain multiple test images; calculating the number of pixels per inch and the modulation transfer function of the test images to evaluate the acquisition quality of each test image, and the intermediate parameters corresponding to the test images whose acquisition quality is within a selected range are the actual optimal parameters.

The invention relates to an ophthalmic lens element (1) intended to be worn by a wearer, comprising: at least one prescription portion (2) having a first optical function configured to provide, when the lens element (1) is worn by the wearer, a refractive correction of the wearer's eye based on the wearer's prescription; and a plurality of lenslets (3), each lenslet (3) of said plurality of lenslets being configured to provide at least one second optical function different from the first optical function, wherein each lenslet (3) has a shape, a size and a position such that at least a portion of said lens element (1) has a modulation transfer function (MTF) whose values are configured such that the modulation transfer function of said lens element (1) is lower than or equal to 0.6 in a spatial frequency range comprised between 1 and 5 cycles per degree.

An ocular surface image optimization method and apparatus, a portable ocular surface imager, and an electronic device, relating to the technical field of multispectral imaging. The method comprises: acquiring a target number of real-time frames, and performing grid division on the real-time frames to obtain target grids on the real-time frames; calculating a preset modulation transfer function in the target grids to obtain sharpness values, and mapping the sharpness values of the target grids corresponding to a single real-time frame to form an image-quality spatial map of a target size; and using a differential fitting algorithm to synthesize the image-quality spatial maps corresponding to the real-time frames into one target image-quality spatial map, generating an optimized image on the basis of the target image-quality spatial map, and sending the optimized image to a portable ocular surface imager for output. By dividing the real-time frames into different grids and calculating the modulation transfer function on a per-grid basis, the calculation speed is increased, and the problem that optimized images cannot be calculated in real time on the basis of multiple frames of images is solved.

The present application belongs to the technical field of image processing, and provides a high-precision splicing method, device, equipment and medium for unstructured micro-distance images, comprising: obtaining unstructured micro-distance images collected by a handheld terminal, and using SIFT feature extraction and RANSAC algorithm to correct the unstructured micro-distance images; calculating the self-overlapping rate of the corrected unstructured micro-distance images, and obtaining a dynamic hierarchical ranking according to the self-overlapping rate; cutting the dynamic hierarchical ranking through a lens modulation transfer function according to the dynamic hierarchical ranking, and splicing the cutting result to obtain a splicing result of the unstructured micro-distance images. The present application has the beneficial effect of improving the flexibility and efficiency of field operations, and can automatically place high-resolution micro-distance detail images at the top of the layer to prevent them from being incorrectly blocked by low-resolution long-range images, so that the visual effect of the synthesized working face image is natural and the illumination is uniform, facilitating subsequent geological recording and analysis.

A rod lens array (10a) has a plurality of refractive index distribution type rod lenses (1b) arranged in parallel with their optical axes, forming a positive erect equal magnification image. The refractive index distribution type rod lens (1b) has a refractive index distribution in the radial direction. The radius of the refractive index distribution type rod lens (1b) is denoted as r0. The refractive index at the center of the refractive index distribution type rod lens (1b), that is, the central refractive index, is denoted as n0. The refractive index distribution constant of the refractive index distribution type rod lens (1b) is denoted as A such that the refractive index at a distance r from the center of the refractive index distribution type rod lens (1b) is approximated as n(r) = n0·{1-(A / 2)·r 2}. The opening angle θ represented by the formula is 3-6°. The imaging distance of the rod lens array (10a) is 45-75 mm. The depth of field in which the value of the modulation transfer function (MTF) at a spatial frequency of 6 lp / mm is 30% or more is 1.5-3.0 mm.

The invention provides a turbulence degradation image synthesis method based on continuous exposure time. Turbulence degradation is decomposed into two types of mutually independent physical processes of distortion and blurring. Aiming at the exposure dependence of turbulence blur, an exposure time modulation transfer function is used, and a pure blur point spread function is constructed through inverse Fourier transform, so that continuous transition of blur degradation in an interval from short exposure to long exposure is realized. Meanwhile, the fuzzy width distribution conforming to the statistical law is generated through the spatial random field, so that the generated fuzzy has the characteristic of spatial non-uniformity and is closer to the real turbulence imaging process. The fuzzy model is combined with an independently constructed geometric distortion field, so that turbulence images or videos which show physical consistency and diversity under different exposure conditions can be generated. According to the invention, the turbulence degradation difference caused by exposure time change in a real scene can be effectively simulated, and a reliable high-fidelity data source is provided for a turbulence removal algorithm, imaging system evaluation and data set construction.

This invention relates to a method for testing the modulation transfer function (MJF) of TDICMOS detectors. It addresses the problem of difficulty in identifying and interpreting useful image data during existing MJF testing of TDICMOS detectors. The invention first adjusts the relative position of the detector and target using a planar array mode, and then switches to a linear array mode. The gate transfer control signal of the TDICMOS detector is output normally during the charge transfer phase, but is disabled during the exposure phase. The valid data signal outputs periodic high and low level signals when the gate transfer control signal is present; otherwise, it is a constant level. The charge transfer levels for panchromatic and multispectral images are set to the maximum available levels, and the cyclic frame period length is an integer multiple. Synchronous transmission of panchromatic and multispectral images is ensured, resulting in relatively stable panchromatic and multispectral images in each received frame.

The application relates to the technical field of single-point diamond turning, in particular to a method for estimating the influence of a single-point diamond turning tool mark diffraction on image quality, which comprises the following steps: designing an optical system and modeling a tool mark diffraction surface as a phase diffraction annular grating in the optical system; calculating an amplitude spread function of light rays after the light rays pass through the optical system and reach an image plane; respectively calculating diffraction efficiencies of different diffraction orders under the amplitude spread function of the same wavelength, and superimposing the amplitude spread functions after the amplitude spread functions are normalized to the corresponding diffraction efficiencies; calculating a complex color intensity spread function based on the amplitude spread functions of different wavelengths; and obtaining a modulation transfer function after image quality is reduced based on the complex color intensity spread function, so that a design index can be effectively comprehensively evaluated, processing test cost is reduced, and a production cycle is shortened.

1. Name of the product in this design: Auxiliary operation graphical user interface for displaying optical lens transfer function and focal length test of electronic devices. 2. Purpose of this design: An electronic device. 3. The key design features of this product are the graphical user interface content displayed on the screen. 4. The image or photograph that best illustrates the design's key points: the front view. 5. Purpose of the graphical user interface: To assist users in operating the compact optical lens transfer function and focal length testing system, and to realize the automatic measurement of the optical lens modulation transfer function and focal length. 6. Human-computer interaction method of graphical user interface: The main view is the initial interface of the compact optical lens transfer function and focal length test system, which provides human-computer interaction. 7. Other situations requiring explanation are illustrated in the diagrams: Diagram 1 shows the focal length measurement interface; Diagram 2 shows the video stream acquisition interface; the main view is the initial interface of the compact optical lens transfer function and focal length testing system, which can be displayed when the software is opened; the light source of the testing system is controlled by the "Light Source Control" control in the right-hand combo box of the interface, and the motion platform is controlled by the "Motion Control" control in the right-hand combo box. Clicking the "Focus" button in the toolbar of the main view will take you to the focal length measurement interface, as shown in Figure 1. Clicking the "Image" button on the right side of Figure 1 will open the video stream acquisition interface, as shown in Figure 2.