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61. Purpose : compare influence on positrontomography ( PET ) reconstruction image quality and convergence rate of different subsets.

62. The MTF (Modulation Transfer Function)-based Wiener filter, which is comparatively fast and effective, in frequency domain is adopted to improve the image quality.

63. Non spherical surface lens can get rid of the spherical surface lens' shortcoming and will be highly valuable, so the study of image quality of rotational conicoid and its lens is meaningful.

64. The pulsed argon laser thus obtained is used as a reconstruction light source for liquid surface acoustical holography, resulting in a greatly improved image quality.

65. Under certain circumstances, the image quality of industrial television is not good enough, therefore image enhancement is needed to fit requirement of production.

66. Effective encoding technologies to obliterate redundance and retain the image quality are the focus of research.

67. And a new universal image quality index is selected to access the embedded image distortion.

68. Scattered particle detecting efficiency must be raised in order to improve the image quality of Compton scattering imaging.

69. This paper proposed a new im aging method which was mainly based on the sampling theory to improve the EIT image quality.

70. By experiments of a short-wave infrared camera, it is proved that the multiple sampling technology can remarkably improve the image quality.

71. Today's Creation brand, whether internal or external image quality have been improved so much.

71. Sentencedict.com try its best to collect and create good sentences.

72. Stray light analysis is one of crucial technologies to ensure the image quality of Lunar-based Optical Telescope (LOT).

73. The advantage of this method lies in the reduction of data redundancy, and image quality and signal-to-noise ratio are improved.

74. Based on vision model, last square model based halftoning technology can detect image quality, from which we can derive the quality of printing image.

75. By the technique of transplantation application, the author manufactured the practical objective lens with high image quality, which has the similar structure as that of photographic lens.

76. The reverse problem of Electrical impedance tomography(EIT) is a highly ill-posed problem. It is concluded that spatial prior information could improve the final image quality.

77. A uniform magnetic field is produced by the use of such a structure. So higher image quality will be obtained.

78. The logical digital halftone image quality evaluation index is the key of image reproduction technical.

79. The image quality will become worsen for the append noisiness when it be translated and strengthened with the image tube of shimmer night viewing device.

80. The scheduler schedules according to the ready queue, transmits the media data and monitors the image quality.

81. To improve the image quality of real time video encoder, a low complexity variant bit rate (VBR) control algorithm for single-pass video encoding was proposed.

82. Results Three coronary, the left anterior descending (LAD), the left circumflex (LCX) and the right coronary artery (RCA), segments were analyzed in each patient with regard to image quality.

83. In the production process, unifier ray and color of the original image is a very important role for image quality.

84. The most complete measures of image quality for an optical system were its point spread function (PSF) and its optical transfer function (OTF).

85. But whether the general natural image quality assessment is suitable for medical image must be experimented in simulation by medical image.

86. The prepared CMOS image sensor meets the requirement for technological parameters of devices, has high fill factor and effectively improves the image quality of the CMOS image sensor.

87. A image quality evaluation method based on visual masking effect and singular value decomposition is proposed.