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328 results about "Post-production" patented technology

Post-production is part of the process of filmmaking, video production, video production and photography. Post-production includes all stages of production occurring after shooting or recording individual program segments.

Method for calculating lighting parameters and carrying out relighting rendering based on image and model

The invention discloses a method for calculating lighting parameters and carrying out relighting rendering based on an image and a model, comprising the following steps: (1) using a 3D point cloud model of a scene to calculate the normal vector of each 3D point; (2) calculating the light source position and direction vector of an image according to the coordinates and the normal vector of each 3D point and the pixel value of the image; (3) by supposing that the lighting model of the image is a Phong model, calculating the parameters of an energy function in the model based on the light source information obtained in the previous step; (4) calculating the shadow and highlight areas of the image; and (5) giving a target RGB image to be rendered, fusing and rendering the scene and lighting information of the original image into the target image, and outputting a final rendering result. By using the method, the relighting process of special-effects production in film and television post-production is simplified, the relighting rendering result can be output quickly, and a user can preliminarily judge whether an input image is applicable to later virtual-real combination. The problem that rework is caused as the lens and post-production inconsistency cannot be found in the existing film and television production process is solved.
Owner:ZHEJIANG UNIV

Video processing device and processing method applied to mobile phone platform

The invention discloses a video processing device applied to a mobile phone platform, which comprises a video acquisition module, a video compressed encoding module, a special effect overlaying device, a display module, a recording module and a storage module, wherein the video acquisition module is used for acquiring video data; the special effect overlaying device is used for overlaying a set special effect into the video data; the display module is used for displaying the video data with the overlaid special effect; the video compressed encoding module is used for performing compressed encoding on the video data required to be recorded; the storage module is used for storing the video data after the compressed encoding; and the recording module is used for recording operation on the video data and generating a configuration file. Compared with a video shot by the traditional mobile phone, real-time preview of the special effect before formal recording is available, so that an operator can select a video source material requiring post production, and can collect the source material according to an external environment and own inspiration in real time conveniently, and the video processing speed of a mobile phone is increased by parallel distribution processing.
Owner:HANGZHOU QUWEI SCI & TECH
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