摘要:
A context reduced last transform (CRLT) coding technique which enhances parallel context processing, such as utilized in JCTVC-D262, to reduce complexity by reducing the number of context models using for coding the position of the last significant transform coefficient. Selected context models are removed and additional bins are shared which reduce the number of contexts required. In one benchmark test for YUV 4:2:0 video, the number of context models were reduced from 120 for the proposed entropy encoding of JCTVC-D262 test model HM 2.0, versus 82 context models required for CRLT coding.
摘要:
A fast implementation context selection of a significance map includes caching the significance of each coefficient in a buffer, storing an extended significance map in an extended buffer and updating the extended significance map after the significance of a transform coefficient is determined by the encoder or the decoder.
摘要:
A context reduced last transform (CRLT) coding technique which enhances parallel context processing, such as utilized in JCTVC-D262, to reduce complexity by reducing the number of context models using for coding the position of the last significant transform coefficient. Selected context models are removed and additional bins are shared which reduce the number of contexts required. In one benchmark test for YUV 4:2:0 video, the number of context models were reduced from 120 for the proposed entropy encoding of JCTVC-D262 test model HM 2.0, versus 82 context models required for CRLT coding.
摘要:
A fast implementation context selection of a significance map includes caching the significance of each coefficient in a buffer, storing an extended significance map in an extended buffer and updating the extended significance map after the significance of a transform coefficient is determined by the encoder or the decoder.
摘要:
This invention is an apparatus for vortex generation by combining the function of means for vortex generation with the functions of the leading-edge aerodynamic surface, the airfoil, and/or the trailing-edge aerodynamic surface.
摘要:
This invention is a projector headlight that, while offering dual beam patterns, boasts a 100% utilization of the light emitted from a light source by one of the following methods: (1) employing a reflective cutoff shield means to reflect the incoming light from said light source back to the reflector to enhance the illumination in low-beam pattern, (2) using reversible cutoff shield means to reflect the incoming light from said light source back to the reflector to enhance the illumination in low-beam pattern with no moving part involved, (3) utilizing a selective light-filter cutoff means to selectively reflect the incoming light from said light source back to the reflector to enhance the illumination in low-beam pattern without making use of any moving part, (4) using a low-beam light-emitting subassembly and a high-beam light-emitting subassembly that are separated by partition means to achieve dual beam patterns with no moving part, or (5) adopting a low-beam light-emitting subassembly in low-beam pattern and a high-beam light-emitting subassembly in high-beam pattern without any moving part.
摘要:
The invention relates to a magnetic resonance imaging method for simultaneous and dynamic determination of a longitudinal relaxation time T1 and a transversal relaxation time T2 of the nuclear spin system of an object, in the context of DCE or DSE MRI. In this respect, the invention makes use of a steady-state gradient echo pulse sequence comprising an EPI readout module.
摘要:
Impregnated rare earth metal-containing barium-aluminum-scandate cathodes with a rare earth oxide doped tungsten matrix and methods for the fabrication thereof are described. In one aspect, an impregnated rare earth metal-containing barium-aluminum-scandate cathode comprises: a rare earth oxide doped tungsten matrix, and an impregnated active substance. The active substance comprises scandium oxide (Sc2O3), a second rare earth oxide, and barium calcium aluminate, wherein the molar ratio of Ba:Ca:Al is about 4:1:1.
摘要:
A method for synthesis of 1-decene oligomer is provided, wherein 1-decene is polymerized at 80-120° C., 0.8-1.4 MPa in the presence of aluminum trichloride catalyst supported on gamma-alumina and n-hexane solvent where the volume ratio of 1-decene to n-hexane is 3:8-4:1. The catalyst is treated as follows: impregnating gamma-alumina carrier in 0.5-2.0 M of hydrochloric acid, sulfuric acid, nitric acid or mixtures thereof, then vacuum drying at 80-100° C. and calcining at 400-800° C.; dissolving 5-10 g of anhydrous aluminum trichloride in 100 ml of tetrachloromethane, trichloromethane or dichloromethane solvent; adding the obtained solution into 10-20 g of activated alumina carrier and obtaining the catalyst after vacuum drying. The conversion of 1-decene is 50 wt % or more. The oligomer has a kinematic viscosity at 40° C. of 6.0-25 mm2/s and a viscosity index of 160-262.