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96results about How to "Good visual effect" patented technology

Preparation method of peep-proof membrane

The invention discloses a preparation method of a peep-proof membrane, comprising the following steps: 1) coating a PET layer with UV resin for forming so as to prepare a first transparent resin layer which covers the PET layer and several columns of raised units which are uniformly distributed on the first transparent resin layer; 2) carrying out wet-type coating in gaps between the raised units with a black or grey filler; 3) removing a surface layer formed by the black or grey filler on the top of the peep-proof membrane; 4) roasting: a solvent in the filler is volatilized, solid components in the filler are deposited on the bottom of the gaps and a thin layer is adhered to the side surface of the gaps; and 5) second transparent resin is filled between the raised units. Refractive index of the second transparent resin is lower than refractive index of the first transparent resin, and a protection layer is formed on the top of the peep-poof membrane by the second transparent resin. Light transmittance of a viewable area is enhanced. Visual effect is better. User experiment is more comfortable. In addition, the peep-proof function outside the viewable area of the peep-proof membrane provided by the invention is the same with as effects of a traditional peep-proof membrane.
Owner:SUZHOU CHENGBANG DALI MATERIAL TECH

3D (three dimensional) film and television system and 3D projection method

ActiveCN103529637AThe video screen is bright and clearGood visual effectStereoscopic photographyOptical elementsLiquid crystalTelevision system
The invention relates to the field of optics, in particular to a 3D film and television system and a 3D film and television method. The 3D film and television system comprises an L-shaped reflection type polaroid, two reflection mirrors, a first liquid crystal wave plate set and two second liquid crystal wave plate sets, wherein the L-shaped reflection type polaroid is used for splitting incident projection light into transmission light and two beams of reflection light; the first liquid crystal wave plate set is arranged in a transmission direction of the L-shaped reflection type polaroid; a reflection mirror which is used for reflecting the reflection light to a second liquid crystal wave plate set is arranged in a reflection direction of each beam of reflection light of the L-shaped reflection type polaroid; the second liquid crystal wave plate sets are arranged in reflection directions of the reflection mirrors; and a light ray path that the transmission light reaches the first liquid crystal wave plate set is equal to light ray paths that the reflection light reaches the second liquid crystal wave plate sets, so that an image which is presented on a screen by each beam of reflection light is overlapped with an image which is presented on the screen by the transmission light, light reaching the screen is increased, the specific value of the light reaching the screen to incident projection light is larger, the images presented on the screen are bright and clear, and the visual effect is better.
Owner:BEIJING AIGEXINDA TECH CO LTD

Method for utilizing 3D (three dimensional) dictionary to eliminate block effect in 3D display system

InactiveCN102523454AHigh peak signal-to-noise ratio and structural similarityGood visual effectTelevision systemsDigital video signal modificationSignal-to-noise ratio (imaging)White noise
The invention discloses a method for utilizing a 3D (three dimensional) dictionary to eliminate the block effect, mainly solving the problem of the block effect in existing 3D display system based on DIBR (depth image-based rendering) after block discrete cosine transform compression. The method comprises the following implementing steps of: (1) utilizing a KSVD (k-singular value decomposition) algorithm and batch-processing orthogonal matching pursuit algorithm to train a 3D dictionary; (2) controlling a quality factor in the JPEG (Joint Photographic Experts Group) standard to compress an original 3D image; (3) taking the block effect as Gaussian white noise and calculating the noise standard difference of the 3D compressed image; (4) calculating an error threshold according to the quality factor and the noise standard difference; (5) eliminating the block effect in the compressed image and acquiring a sparse coefficient representation matrix with elimination of the block effect; and (6) utilizing the 3D dictionary and the sparse coefficient representation matrix with elimination of the block effect to obtain a 3D result diagram with elimination of the block effect. Compared with the prior art, the method has the advantages that higher or similar peak signal and noise ratio and structural similarity can be obtained, and the visual effect of the image with elimination of the block effect is better.
Owner:XIDIAN UNIV
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