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 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 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.

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 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 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.