35results about How to "Improve pixel utilization" patented technology

The invention relates to a spectral imaging method and a spectrum imaging instrument of a snapshot-type high throughput, which aim at realizing a picture-type photograph. The spectrum instrument comprises a linear gradient filter array and an optical-field imaging mechanism, and the optical-field imaging mechanism comprises a primary mirror, a micro lens array and a detector. The filter array is arranged on an aperture diaphragm between lenses of the primary mirror, the filter array consists of a plurality of filters which have identical width and are arranged at intervals, and the filter is a linear gradient filter band with continuous spectrum. The micro lens array is arranged on an imaging surface of a front-mounted optical imaging system, and the detector is arranged on a focus plane of the micro lens array. The spectrum imaging method is characterized in that light in different directions transmitted or reflected by a target is imaged on one micro lens after being modulated by the primary mirror and the filter array, the light is dispersed by the micro lens onto a picture element of the detector to form a subimage, and finally three-dimensional spectrum image data is obtained. The complete spectrum image information of the target can be obtained through the photograph in one step, and the spectral imaging method and the spectrum imaging instrument can be used for monitoring and tracking a rapid variable or movable target.

The invention, which is applicable to the technical field of three-dimensional measurement, provides a microscopic three-dimensional measuring device and system. The device comprises a structured light generating device, an optical path steering assembly, an imaging lens group and a CCD. The structured light generating device is used for generating structured light; the optical path steering assembly is used for guiding the structured light to a to-be-measured object and guiding light carrying object image information to the imaging lens group after the light passes through the to-be-measured object. The imaging lens group consists of a main lens and a micro lens array being a light-field camera and is used for transmitting the light. The CCD is used for recording light transmitted by adjacent micro lenses in the micro lens array, thereby obtaining a recorded image. With the system and device provided by the invention, a problem of shadow shielding in structured light three-dimensional measuring can be solved. Meanwhile, on the basis of combination of the light-field camera and the structured light three-dimensional measuring, the pixel utilization rate of the light-field camera is improved substantially and the precision is high.

The invention discloses an omni-directional imaging device and method. The omni-directional imaging method comprises the steps of: dividing a circular big imaging surface formed by a specially designed long-focus big imaging surface reflex type panorama annular lens on a plane or a spherical surface into multiple sector-shaped sub-imaging surfaces averagely; delivering each sub-imaging surface or each expanded sub-imaging surface to a corresponding image sensor through a conical optical fiber panel with the size matching with that of each sub-imaging surface; unfolding the images received by all the image sensors into rectangular images and splicing the images according to the sequence thereof on the circular imaging surface so as to obtain an omni-directional image by utilizing an image processing unit; and finally sending the omni-directional image to the display unit for displaying. As the conical optical fiber panel and the long-focus big imaging surface reflex type omni-directional annular lens are combined, real-time 360-degree panorama omni-directional imaging of a big imaging surface is realized; as multiple image sensors are utilized for image splicing, a bigger image surface can be obtained; and an image resolution rate of an edge part of a field of view can be increased.

The invention relates to a spectral imaging method and a spectrum imaging instrument of a snapshot-type high throughput, which aim at realizing a picture-type photograph. The spectrum instrument comprises a linear gradient filter array and an optical-field imaging mechanism, and the optical-field imaging mechanism comprises a primary mirror, a micro lens array and a detector. The filter array is arranged on an aperture diaphragm between lenses of the primary mirror, the filter array consists of a plurality of filters which have identical width and are arranged at intervals, and the filter is a linear gradient filter band with continuous spectrum. The micro lens array is arranged on an imaging surface of a front-mounted optical imaging system, and the detector is arranged on a focus plane of the micro lens array. The spectrum imaging method is characterized in that light in different directions transmitted or reflected by a target is imaged on one micro lens after being modulated by the primary mirror and the filter array, the light is dispersed by the micro lens onto a picture element of the detector to form a subimage, and finally three-dimensional spectrum image data is obtained. The complete spectrum image information of the target can be obtained through the photograph in one step, and the spectral imaging method and the spectrum imaging instrument can be used for monitoring and tracking a rapid variable or movable target.

The invention relates to a multi-lens detector array curved image surface splicing method and belongs to the large-field-of-view digital imaging technical field. The objective of the invention is to solve problems of complex operation, high cost and difficult post-stage processing existing in the prior art. According to the technical scheme of the invention, a plurality of sets of imaging lenses of which the image surfaces are curved surfaces acquire images through detector arrays on the respective curved image surfaces of the imaging lenses; the plurality of sets of detector arrays are staggered at directions which are different from the directions of respective optical axes of the imaging lenses, so that a plurality of sets of staggered and complementary reticular images can be formed; the reticular images are spliced to each other so as to from a seamless large-field-of-view image; and the layout of the detector arrays is calculated through adopting a curved surface point distribution mathematical topology method and according to the surface types of the curved image surfaces of the imaging lenses, so that topologic arrangement of the plurality of detector arrays can be mutually staggered, and the boundaries of the detector arrays are overlapped with each other. With the multi-lens detector array curved image surface splicing method of the invention adopted, curvature-of-field correction operation can be omitted, and the complexity of the imaging lenses can be reduced, and system processing cost can be reduced, and the complexity of later-stage image splicing processing can be simplified, and a lot of computational processing steps can be omitted.

The invention discloses an immersion type full-view LED dome screen display and control system. The system comprises a video processing control system and a dome screen display terminal. The data output end of the video processing control system is connected with the data input end of the dome screen display terminal; the video processing control system comprises a video splicer, a graph correctorand a video transmitter. The video splicer receives a plurality of paths of video images output by the upper computer; wherein the video splicer is used for splicing a plurality of paths of video images and segmenting each path of video image into a plurality of sub-images, the graphic corrector is used for converting each sub-image segmented by the video splicer into a curved surface image and correcting gaps and distortion of joint parts of the curved surface images, and the video sender is used for sending the video images processed by the video splicer and the graphic corrector to the dome screen display terminal. According to the invention, all signals are processed in parallel in real time, and the output signals also ensure the synchronism, so that the smoothness and synchronism ofthe whole display picture of the dome screen display terminal are ensured.

The invention discloses an accurate positioning test paper for urine testing. The test paper includes a test piece and a white long-strip thin substrate, wherein the white long-strip thin substrate includes an integrally-formed rectangular plate portion and a handle portion, the test piece is disposed on the rectangular plate portion, the test piece is provided with multiple equally-spaced small test papers, the rectangular plate portion is located outside each small test paper and close to the small test paper and is provided with a black outer frame, a middle portion of the test piece is provided with an insertion prompt line in the width direction, a middle and lower edge of the test piece is provided with an arrow prompt icon in the length direction, a mark of this face up is arrangedbelow the arrow prompt icon, and a round transition is arranged at a corner of the test piece. The test paper is positioned accurately, and the detection result has high precision.

The invention provides a visual generation method of a self-adaptive combat scene. The method comprises steps of obtaining perspective projection of a current terrain visual range through a scene viewpoint; drawing the two-dimensional vector data of the current terrain on the texture bound with the terrain in real time through perspective projection so that a three-dimensional battlefield geographical environment is formed; carrying out displacement on vertexes on military mark grids according to textures bound with terrains, and rendering the vertexes into a screen frame cache to obtain a final military mark drawing result, so that visualization of battlefield situations is achieved, and self-adaptation is conducted on the battlefield environment and the battlefield situations. Accordingto the invention, visualization of battlefield situation is realized, three-dimensional terrain following of the irregular military standard can be realized, the operation efficiency is high, and thereal-time requirements of interactive editing and dynamic deduction can be met.

The invention discloses a di-anisotropic fish-eye lens for a spherical screen showing / projection system in a single machine position. A characteristic design scheme comprising the di-anisotropic fish-eye lens and an equivalence principle optical structure scheme can achieve a special thing-image mapping relationship by constructing difference of optical characteristics of the di-anisotropic fish-eye lens in sagitta of arc and meridian directions in a targeted manner. Compared with the used conventional fish-eye lens, the spherical screen showing / projection system constructed by using the di-anisotropic fish-eye lens at least can increase the pixel utilization ratio or the light energy utilization ratio by over 50%.

The invention discloses a driving method of an LED spherical screen, and relates to the technical field of LED display driving. The method comprises the following steps: 1, dividing a display spherical surface into a top display area, a bottom display area and a plurality of side display areas, and calculating display parameters of each display area; 2, generating a rectangular video image; 3, carrying out the geometric deformation from a plane to an arc surface on the rectangular video image in the step 2, and carrying out the image compression processing after deformation; 4, intercepting the video image subjected to compression processing in the step 3; 5, distributing the video images intercepted in the step 4 to the display areas divided in the step 1, and splicing the video images distributed in the display areas into a spherical video image picture capable of being continuously displayed. According to the invention, the video images are effectively utilized, the transition display effect among the display areas is smooth, no chromatic aberration exists between the display areas, the tolerance degree of the compressed image is increased, and the driving efficiency of the image is improved.

The invention relates to a spherical material surface image acquisition method, in particular to an image acquisition method for acquiring all surface images of a spherical material by using a reflector, and belongs to the technical field of machine vision sorting. A spherical material full-surface image is obtained through one-time imaging of a single camera, and rapidness and convenience are achieved. In a set image composed of a front image (4) and three back images (5) closely arranged around the front image in a circular array mode, each back image (5) is tangent to the front image (4), the diameter of the front image (4) is the same as the size of each back image (5) in the radiation direction, and the proportional conversion processing amount is reduced. The aperture of the concavemirror selects a critical value to reduce invalid background segmentation. Aligning to the imaging background of the camera, except for the spherical material, the areas which are easy to be reflectedby the concave mirror and then enter the camera are black, and invalid background segmentation is reduced. In the collected set image, the back image is closely and circularly arrayed around the front image, so that effective pixels in each image are centralized, the area of a CCD photosensitive device is fully utilized, and the pixel utilization rate is improved.

The invention discloses a display method of an LED spherical screen and belongs to the technical field of LED spherical screen display. Based on a human vision spatial resolution theory, with various factors such as LED lamp bead size, LED lamp bead spacing, LED lamp bead arrangement mode and display spherical surface size comprehensively considered, a mathematical relationship is established. Each LED lamp bead is defined as a pixel of an image to be displayed; a spherical surface is formed by continuously arranging the LED lamp beads along the longitude and latitude lines of the spherical surface, so that the spherical surface can has a video image display function; the whole spherical surface is divided into a plurality of areas according to the top, the bottom and the side faces of the spherical surface; a video image is generated by an image generation device according to field angle parameters of each area. an image processing device corrects the image; an LED driving device drives the image to finish the function of displaying continuous video images on the whole spherical surface. According to the method, the design of the LED spherical screen has a theoretical basis, and human eyes can obtain a more comfortable display effect.

A rear projection dome screen of a visual display system not only can realize panoramic image display, but also can improve the pixel utilization rate of a single projector, thereby avoiding the use of a large number of projectors, and reducing the manufacturing cost of the visual display system. According to the rear projection dome screen of the visual display system, a projector projects a projection picture to the rear projection dome screen, an optical eye point is located in the center of the rear projection dome screen, a main body of the rear projection dome screen is an annular curved surface side wall, and the horizontal curvature radius R1 corresponding to each point on the annular curved surface side wall is smaller than the corresponding vertical curvature radius R2.

The invention discloses a display panel, a display control method and a display control device of the display panel. The display control method includes: obtaining the arc edge area of ​​the display panel; and performing display correction processing on the pixels in the arc edge area, including: dividing the arc edge area into multiple pixel areas; acquiring the drop pixel group of each pixel area , the drop pixel group includes an excess drop pixel group; performing pixel area screening on multiple pixel areas to obtain the first type of pixel area; performing pixel screening on the pixels in the first type of pixel area to obtain the first type of pixel and the second type of pixel; configuring the first type of pixels to not display; and configuring the second type of pixels to display in a grayscale gradient display mode. According to the display control method of the embodiment of the present invention, the first type of pixels are screened twice and configured not to be displayed, so that the remaining pixels can achieve better visual jaggedness optimization through the gray scale gradient display configuration, and improve the display look and feel of the display panel.

The invention relates to a video transcoding priority sequence control method and a processing terminal, and the method comprises the following steps: S1, obtaining a transcoding task instruction, andgenerating a corresponding random number; s2, obtaining a transcoding task ID of a corresponding priority according to the generated random number; and S3, obtaining a video file of the correspondingto-be-transcoded video according to the obtained transcoding task ID, and transcoding the video file to obtain a transcoded video. According to the method, the transcoding tasks with the corresponding priorities can be effectively allocated according to the priorities, and waste of transcoding node resources can be avoided while it is guaranteed that the transcoding tasks with the preceding priorities are processed preferentially.

The invention discloses a scanning driver, an optical fiber scanning device and projection display equipment; the scanning driver comprises a first actuating part as a slow axis and a second actuatingpart as a fast axis; the first actuating part can drive the second actuating part to vibrate in a first direction, and the second actuating part can vibrate in a second direction; the second actuating part comprises a base body and a piezoelectric driving piece, and the base body comprises a first surface and a second surface which are oppositely arranged; the piezoelectric driving piece includea first piezoelectric driving sheet disposed on the first surface and a second piezoelectric driving sheet disposed on the second surface. According to the scheme, a novel scanning driver structure isprovided, the structure is particularly suitable for achieving grid type scanning and control, and therefore compared with a spiral scanner, the scanning driver structure has the advantages of beingeasy to match with a rectangular video and high in pixel utilization rate.

The invention relates to a deduplication method for preventing repeated transcoding of a video and a processing terminal, and the method comprises the following steps: S1, obtaining a video transcoding task ID, and obtaining a to-be-transcoded video file according to the video transcoding task ID; S2, generating a check value of the video file according to the obtained video file; S3, respectivelycomparing the check value of the generated video file with the check value of each video in the video data table, if a consistent check value exists in the video data table, marking the video file and not transcoding, and if the consistent check value does not exist in the video data table, transcoding the video file to obtain a transcoded video. According to the invention, repeated transcoding of the same video can be prevented, and resources are saved.

The invention provides a laser processing chip method and device. The laser processing chip method comprises the following steps that a laser device and an optical element is used for building a laserprocessing system; the processing deviation of the constructed laser processing system is detected; drawing parameters of the groove to be processed is obtained according to the processing deviationamount; and the laser processing system is used for processing the refrigeration type infrared detection chip according to the drawing parameters of the groove to be processed, so that a closed annular groove is formed between the pixel layer and the edge on the refrigeration type infrared detection chip. According to the laser processing chip method and device, the pixel utilization rate at the corner of the closed annular groove can be effectively improved, the influence on the width and the depth uniformity of the groove at the corner is reduced, and finally the effect of the laser groovingand the reliability of the chip are improved.

The invention discloses a di-anisotropic fish-eye lens for a spherical screen showing / projection system in a single machine position. A characteristic design scheme comprising the di-anisotropic fish-eye lens and an equivalence principle optical structure scheme can achieve a special thing-image mapping relationship by constructing difference of optical characteristics of the di-anisotropic fish-eye lens in sagitta of arc and meridian directions in a targeted manner. Compared with the used conventional fish-eye lens, the spherical screen showing / projection system constructed by using the di-anisotropic fish-eye lens at least can increase the pixel utilization ratio or the light energy utilization ratio by over 50%.

The invention discloses a LED spherical screen display method, and relates to the technical field of LED spherical screen display. Based on the theory of human visual spatial resolution, comprehensive consideration is given to the size of LED lamp beads, the distance between LED lamp beads, the arrangement of LED lamp beads and the display method. There are many factors such as the size of the spherical surface, and a mathematical relationship is established based on this. Each LED lamp bead is defined as a pixel of the image to be displayed, and the spherical surface is formed by continuously arranging the LED lamp beads along the longitude and latitude of the spherical surface, so that it has a spherical display. Video image function, and then by dividing the entire spherical surface into multiple areas according to the top, bottom and side, and according to the field of view parameters of each area, the video image is generated by the image generation device, the image is corrected by the graphics processing device, and the image is driven by the LED drive device, etc. The operation completes the function of displaying continuous video images on the entire spherical surface. The method provides a theoretical basis for the design of the LED spherical screen, and enables human eyes to obtain a more comfortable display effect.

The invention discloses a driving method for an LED spherical screen, which relates to the technical field of LED display driving. Display parameters of each display area; Step 2. Generate a rectangular video image; Step 3. Perform geometric deformation from plane to arc on the rectangular video image in Step 2, and perform image compression after the deformation; Step 4. The compressed video image is intercepted; step 5. The video image intercepted in step 4 is allocated to the display area divided in step 1, and the video images allocated by each display area are spliced ​​into a spherical video image that can be displayed continuously. , the present invention makes the video image effectively used, the transition display effect between each display area is smooth, there is no color difference between the display areas, the latitude of the compressed image is enlarged, and the driving efficiency of the image is increased.

The invention relates to a deduplication method for preventing repeated transcoding of a video and a processing terminal, and the method comprises the following steps: S1, obtaining a video transcoding task ID, and obtaining a to-be-transcoded video file according to the video transcoding task ID; S2, generating a check value of the video file according to the obtained video file; S3, respectivelycomparing the check value of the generated video file with the check value of each video in the video data table, if a consistent check value exists in the video data table, marking the video file and not transcoding, and if the consistent check value does not exist in the video data table, transcoding the video file to obtain a transcoded video. According to the invention, repeated transcoding of the same video can be prevented, and resources are saved.

The embodiment of the present application discloses an image acquisition control method and device, wherein an image acquisition control method includes: determining that the first area is a fuzzy imaging area, and the first area is a part of the shooting scene; The imaging area corresponding to the blurable imaging area; adjusting the pixel density distribution of the image sensor so that the adjusted pixel density of the imaging area in the image sensor is smaller than other imaging areas; the adjusted image The sensor collects images of the shooting scene. The embodiment of the present application can reduce the pixel waste that may be caused by image acquisition of the blurable imaging area of ​​the shooting scene, make full use of the pixel resources of the image sensor to improve the imaging quality of other areas of the shooting scene, and better meet the diverse practical application needs of users.

The concentric spherical objective lens detector spherical array video acquisition device belongs to a large field of view digital imaging system, and aims to solve the problems of insufficient detector size and limited spherical lens imaging in the prior art. The invention includes three groups of imaging systems, each group of imaging systems includes a concentric spherical objective lens and a corresponding image plane detector array, the concentric spherical objective lenses of the three groups of imaging systems are completely the same, the shooting areas are completely consistent, and the image planes are all spherical curved surfaces. The shape of the photosensitive area of ​​each detector on the detector array is a regular hexagon or any shape containing the hexagon, the detector array is distributed in a hexagon, and the central horizontal angle of two adjacent detectors is not greater than that of each detector. 3 times of the photosensitive horizontal angle, and greater than the packaging angle of the center line direction of the two detectors; the three sets of detector arrays are staggered and complementary to each other, and the images obtained by the three sets of imaging systems are spliced ​​to obtain a complete high-resolution video with a large field of view image.