Photorealistic material measurement device and method based on camera light source array mode

A measurement device and realistic technology, applied in the field of realistic material measurement device based on the camera light source array mode, can solve the problems affecting the accuracy of BTF data, low cost, unstable imaging, etc., to achieve scalable dynamic range and small impact , The effect of small rotation error

Active Publication Date: 2017-12-01
SHANDONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This system device is relatively simple and low in cost, but due to the rotation of the mechanical arm of the camera, it will cause imaging instability and affect the accuracy of the final generated BTF data

Method used

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  • Photorealistic material measurement device and method based on camera light source array mode
  • Photorealistic material measurement device and method based on camera light source array mode
  • Photorealistic material measurement device and method based on camera light source array mode

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Embodiment Construction

[0058] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0059] Such as figure 1 As shown, the realistic material measurement device based on the camera light source array mode is composed of a light source, a camera, an acquisition and storage unit, a fixed arm, and a calibration piece, which are used for multi-angle illumination, multi-angle shooting, image data recording and processing, light source camera, etc. Mobile control and calibration.

[0060] 1. Bracket and supporting structure: build a set of fixed camera arm 2 with a radius of 1 meter, a light source rotating arm 1 with a radius of 1.25 meters to form a shooting bracket, and a central rotating worktable to form a supporting structure. The light source rotating arm 1 and the working table are connected through the serial port of the computer Programmable control.

[0061] (1) Hemispherical arm: The light source rotating arm 1 and the camera fi...

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Abstract

The invention discloses a realistic material measurement device and method based on a camera light source array mode, comprising a rotatable workbench on which a material collection platform is fixed, a semicircle camera fixed arm and a rotatable semicircle An arc light source rotating arm; multiple cameras are mounted on the fixed camera arm, and multiple light sources are mounted on the light source rotating arm. With the scalable camera array and light source array solution, the acquisition efficiency and system cost can be controlled; the camera position is fixed during the shooting process, ensuring the overall shooting accuracy. The rotating arm of the light source and the rotating angle of the workbench can be controlled, which can realize material shooting and sampling with different precision. Using different exposure settings to achieve shooting, the dynamic range of the final shooting result can be expanded to meet the needs of material measurement. The software uses the same high-speed recording software SDK, which is compatible no matter whether the acquisition card is used for low-speed acquisition or the dedicated memory CORE is used for high-speed storage in the future.

Description

technical field [0001] The invention relates to a multi-camera and multi-illumination system, and is a realistic material measurement device and method based on a camera light source array mode. Background technique [0002] Rendering technology is the main technology of animation film production. The current rendering technology mainly has two development directions, one is to pursue the rendering of real photo-level image quality; the other is to pursue the non-photorealistic rendering (Non-Photorealistic Rendering, NPR) of special artistic effects. Realistic rendering is the effect pursued by most 3D works at present, and the research points mainly focus on authenticity. With the development of technology, photorealistic rendering is more and more inclined to measure photorealistic materials to improve rendering quality. [0003] The measurement of realistic materials captures the information of various materials in the real world through the material acquisition system...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/80G06T5/00G06T11/00G06T15/04
Inventor 徐延宁孟祥旭龚斌陆巧王璐岳双燕徐安敏
Owner SHANDONG UNIV
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