Color imaging system based on extended wavelet tree and color imaging method thereof

A technology of color imaging and wavelet tree, which is applied to color TV, color TV parts, TV system parts, etc., can solve problems such as misjudgment and sampling waste, and achieve simplified system structure, reduced time, and reduced sampling times Effect

Inactive Publication Date: 2016-08-31
NANJING UNIV OF SCI & TECH
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Problems solved by technology

If you only rely on this parent-child relationship to judge the importance of sub-coefficients, it will lead to misjudgment, and some unimportant coefficients will also be collected, resulting in sampling waste

Method used

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  • Color imaging system based on extended wavelet tree and color imaging method thereof
  • Color imaging system based on extended wavelet tree and color imaging method thereof
  • Color imaging system based on extended wavelet tree and color imaging method thereof

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Embodiment

[0031] The present invention can work with DLP LightCrafter 4500. DLP LightCrafter 4500 is a light control evaluation module launched by TI. It is mainly composed of two subsystems, one is the light engine part, which mainly includes optical lens, white, red, green, blue LED light sources and DMD with 912*1140 pixels, etc.; The other is the driver board, which mainly includes LED driver circuit, DLPC350 DMD controller, power management circuit, DVI to RGB device, etc. The PC end is connected to the trigger and return signal end of the single-pixel photon detector through the board PXI-6552, and the data output end of the single-pixel photon detector is connected to the PC, and the data is stored in the PC. The DVI interface of DLP LightCrafter 4500 is connected to the display screen of PC. The data transmission mode of DLP LightCrafter 4500 is selected through the control software on the PC. Since the flash memory of DLP LightCrafter 4500 is only 32MB, the number of projectio...

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Abstract

The invention discloses a color imaging system based on an extended wavelet tree and a color imaging method thereof. The color imaging system comprises a PC, a DLP, a color target image, a single-pixel photon detector and a data acquisition and control module. The PC, the DLP and the single-pixel photon detector are connected with the data acquisition and control module The important coefficients of R, G and B components are judged by utilizing the extended wavelet tree so that the number of times of sampling can be effectively reduced and no loss of important information can be guaranteed; computation overhead required by a CS algorithm can be avoided so that time required for reconstruction can be reduced; and a single-photon camera structure formed by combination of the single single-pixel photon detector and the DLP is utilized so that the system size can be reduced and the system structure can be simplified.

Description

technical field [0001] The invention belongs to color adaptive compression computing ghost imaging technology, in particular to a color imaging system and method based on extended wavelet tree. Background technique [0002] Traditional Ghost Imaging (GI) ([1] A.Gatti, E.Brambilla, M.Bache, and L.A.Lugiato, "Ghost imaging with thermal light:comparing entanglement and classical correlation," Phys.Rev.Lett.93,093602, 2004. [2] D.V.Strekalov, A.V.Sergienko, D.N.Klyshko, and Y.H.Shih, “Observation of two-photon “ghost” interference and diffraction,” Phys.Rev.Lett.74, 3600-3603, 1995.) using two The associated light field and two photon detectors are used for imaging. The two photon detectors used in the optical path, one is a barrel detector without spatial resolution, which is used to collect the light intensity information of the beam acting on the target object as the target beam; the other is an area array detector with high spatial resolution, which is used to record the li...

Claims

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Application Information

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IPC IPC(8): H04N9/04H04N5/232
CPCH04N23/80H04N23/10
Inventor 何伟基闫奕芸邹云浩戴慧东陈钱顾国华张闻文钱惟贤隋修宝任侃路东明于雪莲
Owner NANJING UNIV OF SCI & TECH
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