Hua-Dong Zheng, Yingjie Yu, Haiyan Qian, A. Asundi
{"title":"全息三维显示中多图像形式对散斑噪声的抑制","authors":"Hua-Dong Zheng, Yingjie Yu, Haiyan Qian, A. Asundi","doi":"10.1117/12.814510","DOIUrl":null,"url":null,"abstract":"In order to avoid missing low-frequency information of three-dimensional (3D) object, pseudorandom phase is generally added to object planes in tomographic hologram calculation, but speckle noise is inevitably introduced. A novel method is proposed to improving the quality of image reconstructed from kinoform generated by computational tomographic holography. Multi-kinoforms of 3D object are calculated, and the images of these kinoforms are superposed to suppress the speckle noise of reconstructed image. An invariant pseudorandom phase is added to each object plane in calculating each kinoform, and the pseudorandom phase is generated randomly again in next kinoform calculating. Digital reconstruction results from single kinoform and multi-kinoforms are analyzed by considering the peak signal-to-noise ratio (PSNR) and correlation coefficient (CC) between reconstructed images and original object, which verifies that the speckle noise in reconstructed image can be suppressed by superposing enough images reconstructed from the kinoforms. Electro-optical reconstruction results also confirm that the method is available.","PeriodicalId":191475,"journal":{"name":"International Symposium on Laser Metrology","volume":"15 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2008-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"9","resultStr":"{\"title\":\"Reduction of speckle noise by multi-kinoforms in holographic three-dimensional display\",\"authors\":\"Hua-Dong Zheng, Yingjie Yu, Haiyan Qian, A. Asundi\",\"doi\":\"10.1117/12.814510\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In order to avoid missing low-frequency information of three-dimensional (3D) object, pseudorandom phase is generally added to object planes in tomographic hologram calculation, but speckle noise is inevitably introduced. A novel method is proposed to improving the quality of image reconstructed from kinoform generated by computational tomographic holography. Multi-kinoforms of 3D object are calculated, and the images of these kinoforms are superposed to suppress the speckle noise of reconstructed image. An invariant pseudorandom phase is added to each object plane in calculating each kinoform, and the pseudorandom phase is generated randomly again in next kinoform calculating. Digital reconstruction results from single kinoform and multi-kinoforms are analyzed by considering the peak signal-to-noise ratio (PSNR) and correlation coefficient (CC) between reconstructed images and original object, which verifies that the speckle noise in reconstructed image can be suppressed by superposing enough images reconstructed from the kinoforms. Electro-optical reconstruction results also confirm that the method is available.\",\"PeriodicalId\":191475,\"journal\":{\"name\":\"International Symposium on Laser Metrology\",\"volume\":\"15 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2008-09-29\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"9\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Symposium on Laser Metrology\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1117/12.814510\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Symposium on Laser Metrology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1117/12.814510","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Reduction of speckle noise by multi-kinoforms in holographic three-dimensional display
In order to avoid missing low-frequency information of three-dimensional (3D) object, pseudorandom phase is generally added to object planes in tomographic hologram calculation, but speckle noise is inevitably introduced. A novel method is proposed to improving the quality of image reconstructed from kinoform generated by computational tomographic holography. Multi-kinoforms of 3D object are calculated, and the images of these kinoforms are superposed to suppress the speckle noise of reconstructed image. An invariant pseudorandom phase is added to each object plane in calculating each kinoform, and the pseudorandom phase is generated randomly again in next kinoform calculating. Digital reconstruction results from single kinoform and multi-kinoforms are analyzed by considering the peak signal-to-noise ratio (PSNR) and correlation coefficient (CC) between reconstructed images and original object, which verifies that the speckle noise in reconstructed image can be suppressed by superposing enough images reconstructed from the kinoforms. Electro-optical reconstruction results also confirm that the method is available.