32results about How to "3D effect is obvious" patented technology

The invention relates to a human eye tracking method and device of naked eye 3D equipment. The human eye tracking method comprises the steps of obtaining the human face image of a user and obtaining the coordinate of the middle point of two eyes in the human face image; determining the coordinate of the middle point of the two eyes to be out of a preset target area in the image, which is arranged between a preset 3D left image visual area and a 3D right image visual area in the image; rotating the naked eye 3D equipment, to ensure that the coordinate of the middle point of the two eyes to be within the target area. The method and the device solve the problem that a user is difficult to find out and keep eyes to be within an optimum visual angle range when using the naked eye 3D equipment, ensures that the user within a visual distance range is not required to deliberately find out or keep a watching angle, eradicates feelings of dizziness and serious crosstalk, and ensures that the user can easily experience ideal 3D effect.

The invention relates to a display device, in particular to an optical displaying device for carrying out three-dimensional imaging on two-dimensional images. The optical displaying device comprises an image displaying system and an eyepiece system. The light emitting direction of the image displaying system faces the eyepiece system. The optical displaying device is characterized in that the image displaying system comprises two connected display screens which include the first display screen and the second display screen, the first display screen is located at the upper end of the second display screen, and the displaying face of the first display screen and the displaying face of the second display screen face the eyepiece system; the display screens are two-dimensional image display screens used for displaying the two-dimensional images; the eyepiece system comprises an eyepiece, and the portion where the first display screen is connected with the second display screen and the center of the eyepiece are located on the same plane; three-dimensional images formed by combining the displayed images of the first display screen and the displayed images of the second display screen are observed through the eyepiece system. According to the optical displaying device, light emitted by the first display screen and the second display screen is collected by the eyepiece system to be integrally converged into the eyes of an observer, and therefore the monocular resolution ratio can be quite high.

The invention relates to the technical field of printing and paper base printing products, in particular to a paper base 3D direct printing process and a paper base 3D direct printing product manufactured with the same. The process includes the following steps that (A) overall design of the printing products is carried out; (B) an offset print forme is output; (C) an offset print sheet is manufactured; (D) a 3D raster gravure plate is manufactured; (E) 3D printing is carried out; and (F) sheet tailoring is carried out. According to the 3D direct printing process, materials containing plastic rasters are not used, the direct printing molding technology is adopted, 3D effects can be locally shown at will, the visual differentiation is obvious, the aim of high definition imaging of thin media is achieved, the adaptability is wide, and the process can be used for multiple kinds of base materials. The paper base 3D direct printing product manufactured with the process forms an attractive whole with a paper base, the 3D effect is obvious, and the obvious visual differentiation is achieved.

The invention provides a 3D display film and a stereoscopic display device. The 3D display film comprises a base material layer, a first structural layer, a first filling layer and a second structural layer, wherein the base material layer comprises a first optical surface and a second optical surface which are disposed oppositely; the first structural layer is disposed on the first optical surface and comprises a first cylindrical mirror layer contacted with the first optical surface and the first filling layer disposed on the first cylindrical mirror layer, and the first cylindrical mirror layer comprises a plurality of first cylindrical mirror units which are arranged in parallel; the first filling layer comprises an even surface which is remote from the first optical surface, and a refractive index of the first filling layer is different from the refractive index of the first cylindrical mirror layer; the second structural layer is disposed on the second optical surface and comprises a second cylindrical mirror layer, and the second cylindrical mirror layer comprises a plurality of second cylindrical mirror units which are arranged in parallel; and the first cylindrical mirror units and the second cylindrical mirror units are orthogonal in the axial extension direction. The 3D display film is adhered on a liquid crystal display panel, so that good 3D effects can be obtained when a screen is placed horizontally or vertically, and consumers' demands can be satisfied to a greater extent.

The invention provides a 3D display film and a stereo display device. The 3D display film comprises a substrate layer, a first structure layer and a second structure layer from the bottom up in sequence. The first structure layer comprises a first cylinder lens layer arranged on the substrate layer and a first filling layer arranged on the first cylinder lens layer. The first cylinder lens layer is formed by a plurality of first cylinder lens units in parallel arrangement; and the first filling layer has a flat surface away from the substrate layer, and the refractive index of the first filling layer is different from that of the first cylinder lens layer. The second structure layer comprises a second cylinder lens layer arranged on the first filling layer. The second cylinder lens layer is formed by a plurality of second cylinder lens units in parallel arrangement. The axial extension direction of each first cylinder lens unit is orthogonal with axial extension direction of each second cylinder lens unit. The 3D display film is attached to a liquid crystal display panel; no matter the screen is placed horizontally or vertically, a good 3D effect can be obtained; and demand of consumers can be met to a greater extent.

The invention discloses PU (polyurethane) composite leather with a 3D effect. The leather successively comprises a 3D basal layer, a PU composite layer and a finishing layer, a bonding agent layer isarranged between the 3D basal layer and the PU composite layer, a solvent-free PU bonding agent serves as the raw material of the bonding agent layer, the finishing layer is a waterborne finishing layer, the PU composite layer comprises a PU monolayer and a high solid layer, and the PU monolayer is prepared from the following raw materials in parts by weight: 95-105 parts of PU resin, 62-70 partsof DMF (dimethyl formamide), 13-16 parts of acetic ether and 7.5-9 parts of color paste; the high solid layer is prepared from the following raw materials in parts by weight: 95-105 parts of high solid resin, 6-7.5 parts of cross-linking agent, 2.5-4 parts of propylene glycol methyl ether acetate, 12-16 parts of fire retardant, 0.55-0.7 part of flatting agent, 0.25-15 parts of color paste and 0.6-1 part of foaming agent. According to the PU composite leather with the 3D effect and the preparation method of the PU composite leather, base cloth is removed compared with previous PU composite materials, the materials are lighter, and the supporting performance is strong; before the process of automotive trim forming, the process in which PU leather is combined with 3D is left out, and the costis reduced when the PU composite leather has a prominent 3D effect.

The invention discloses a 3D display device and a control method thereof, and a computer device, relating to the technical field of naked eye 3D display. A traditional naked eye 3D display device cannot deliver good visual experience of 3D pictures to observers when a viewpoint moves. The invention solves the above problem. The control method of the 3D display device comprises the steps of collecting current human face image information of an observer in real time; according to the human face image information, calculating, at a second frame rate, target state information of a grating structure when the observer can see a 3D image through a current viewpoint; and according to the target state information of the grating structure, adjusting, at a third frame rate, the state of the grating structure, wherein the third frame rate is greater than the second frame rate. The 3D display device is used for 3D display.

The present invention discloses a digital building exhibition method through two-dimensional and three-dimensional combination. Through the combination of a two-dimensional image sequence and a three-dimensional model, the digital building exhibition method through two-dimensional and three-dimensional combination realizes very realistic and shocked large-scale 3D effects for devices with low specifications such as a mobile and the like, cannot influence the performance of the devices because the two-dimensional images cannot occupy the rendering performance and occupies little 3D model value, and makes up the problem that the devices with low specifications such as the mobile and the like cannot operate a large-scale 3D scene. Through combination of the rendering realistic effect and 3D real-time dynamic effect, the digital building exhibition method through two-dimensional and three-dimensional combination is able to smoothly operate, have an obvious 3D effect and have a large 3D visual sense experience feeling compared with a traditional pure sequence display mode through the test of a real phone MI 1S, an MI 2S, a Huawei P6, an Iphone 4S, an Iphone 5s, an Ipad 3, an Ipad 4, an Ipad mini1, a Samsung S4 and an old-fashioned laptop Lenovo G450 produced in 2010.

The invention discloses a portable all-around naked-eye 3D technology arts teaching device. The teaching device comprises a liquid crystal display screen, a teaching display rack used for installationof the liquid crystal display screen, a damping mechanism installed at the bottom of the teaching display rack, a turning mechanism used for carrying out all-around rotation on the liquid crystal display screen and a moving mechanism used for moving and stopping the device. A column-shaped lens is arranged on the front side of the liquid crystal display screen so a column-shaped lens display screen is formed. Left-eye sight lines and right-eye sight lines of the left pupil and the right pupil pass the column-shaped lens. Different sub-pixels are seen. Right image rays and left image rays given out by the liquid crystal display screen are observed, and 3D effects are generated. By use of the 3D effects, arts contents are taught. By rotating an elevating switching rod, the liquid crystal display screen is adjusted to rotate all around in 360 degrees, and it is convenient to adjust the directions of the liquid crystal display screen all around. By rotating the elevating swinging rod, heights of wheel racks and moving wheels are adjusted and operation is convenient.

The invention discloses an ultra-high-definition internal focusing virtual reality optical system. The system comprises an aperture (100), and a first lens (1), a second lens (2), a third lens (3), a fourth lens (4) and a display screen (200) are sequentially arranged behind the aperture (100); the first lens (1) adopts a bi-convex aspherical lens, the second lens (2) adopts a crescent-shaped aspherical lens, the third lens (3) adopts a bi-convex aspherical lens, and the fourth lens (4) adopts a crescent-shaped aspherical lens; the first lens (1) and the second lens (2) are bound together through optical glue to form a glued lens set (300), and the glued surface bends towards the aperture (100). The ultra-high-definition internal focusing virtual reality optical system is simple in structure, high in definition, large in view field angle and wide in application range.

The invention relates to a method for realizing 2D-to-3D (two-dimension to three-dimension) conversion based on an image segmentation technology. The method is characterized by comprising the following steps of: (1) receiving original 2D images and buffering first frame data; (2) buffering next frame data; (3) extracting non-output previous frame data and calculating the gray-scale value of each pixel of the images; (4) sequencing the gray-scale values of all pixels in an ascending order and saving a result; (5) setting a standard gray-scale value h; (6) carrying out left-and-right separation on the pixels with the gray-scale values greater than h; and (7) respectively outputting left-eye images and right-eye images to a display screen in a timesharing manner. According to the method disclosed by the invention, the gray-scale value of each pixel is extracted, the sequencing is carried out according to the gray-scale values, the fixed gray-scale value h is taken as a demarcation criterion of the sequenced result, image contours are determined, the left-eye images and the right-eye images are separated on the basis that the contours are known, and shutter-type 3D glasses are used in a matching manner, thus the 3D effect is realized.

The invention discloses an active 3D simulation system based on virtual and live-action three dimensions, which belongs to the field of active 3D simulation systems based on virtual and live-action three dimensions, and comprises a data server, an application server, a 3D projector, a receiving card, a projection screen, 3D glasses, an infrared synchronous signal module, a 3D synchronous transmitter module and a simulation platform, the data server is connected with the application server, the application server is respectively connected with the simulation platform and the 3D projector, and the 3D projector is connected with the projection screen and the 3D glasses. Dynamic simulation and active 3D experience of natural geography, human landscapes and three-dimensional real scenes of different areas can be realized, and a user can perceive and experience environment characteristics and time domain changes of different geographic areas by constructing a virtual and real scene three-dimensional geographic environment, so that the learning, working, research and other efficiency is improved, and the method is more beneficial for related personnel to assist in decision making. Image ghosts are few, and the 3D effect is prominent. And multiple persons can watch and experience at the same time.