摘要:
An image signal encoded for compression using a wavelet transform as a transform system is to be decoded at a resolution corresponding to an optional rational number. To this end, the wavelet decoding device includes an entropy decoding unit 1 for entropy decoding an encoded bitstream 100, a dequantizing unit for dequantizing the quantized coefficients 101 to transmit transform coefficients 102, a transform coefficient back-scanning unit 3 for scanning the transform coefficients 102 in a pre-set fashion to re-array the transform coefficients, and an inverse wavelet transform unit 4 for inverse transforming the re-arrayed transformation coefficients 103 to furnish a decoded image 104. The inverse wavelet transform unit 4 adaptively constitutes an upsampler, a downsampler and a synthesis filter in dependence upon a pre-set resolution conversion factor.
摘要:
An image generating method and apparatus for high-efficiency recording or displaying of a thumb-nail image or an image converted in resolution. The image display apparatus includes an image inputting unit 1 for inputting an image, an image signal pre-processing unit 2 for pre-processing the input image to generate a digitized image, a band image splitting unit 2 for pre-processing the input image to generate a digitized image, a band image splitting unit 20 for splitting the frequency spectrum of the digitized image data into one or more bands to produce band-based band images, a band image encoding unit 30 for converting the band image into encoded data, a band image decoding unit 40 for decoding the encoded data to obtain band images, and a band image synthesis unit 50 for synthesizing the band images to produce a band-synthesized image. The image display apparatus also includes an image memory 5 for storing an intermediate image obtained from the band images and a display controller 3 for displaying the band images in a controller fashion on a display unit. The image display apparatus also has a controller 4 for controlling the entire system.
摘要:
A dot matrix printer of a dispersion printing type in which a printing noise is suppressed and dots arranged in longitudinal rows are driven while shifting the timing for every print wire dot. The present dot matrix printer is characterized by a construction in which respective print wires are driven at different timings within one pitch, and a space around a print head is surrounded by a housing and a platen, and a sound generated in the space is transmitted outside through walls. Further, the present dot matrix printer is characterized in that there is provided a memory storing printing intervals among the whole dots and print head conduction time, and the print head is driven in accordance with information read out of said memory in order to correct deviation of dot rows arranged in a longitudinal direction of the print head from perpendicularity. According to the present dot matrix printer, since the print head is driven at a high frequency by an inexpensive control unit, the noise frequency at printing with the print head becomes high, and the generated noise is transmitted outside through walls. Therefore, attenuation in a high-pitched tone compass is large through walls, thus exhibiting an effect that the operation sound of the printer leaking outside is made smaller.
摘要:
A clamp device drive apparatus for driving a clamp device engaged with a T-shaped groove slidably between a clamping position and an unclamping position, comprises a push-pull chain connected to a clamp device, a vertical housing for containing the chain, guide members for turning a running course of the chain, a sprocket engaged with the chain, and a cylinder drive type motor for driving the sprocket to rotate, and the motor is constituted to drive the sprocket with a double acting fluid cylinder or a pair of single acting fluid cylinder, through ball screw mechanism for converting driving force into driving torque.
摘要:
Pulse signals of different weights are introduced from different input terminals into the present count system in a parallel fashion, respectively. Each number of the pulse signals of different weights are counted in a binary code notation. There is provided a weight information generator which generates weight signals, in a binary coded decimal notation, dependent upon the weight of the weighted pulse signals. Each of the weight signals are repeatedly added, each number of the repetition being identical with the counted number of the pulse signals of different weights introduced into the present system. A desired information may be obtained by totaling the results of these additions.
摘要:
The ejector device of a molding machine includes: an ejector plate; an ejector drive means for driving the ejector plate in directions to approach towards and to withdraw from a platen; a plurality of rod insertion holes formed so as to pierce through the platen; and a plurality of ejector rods or a plurality of base rods which are base end portions of ejector rods that are inserted into the plurality of rod insertion holes so as to slide freely therein; and a plurality of magnetic rod fixing mechanisms capable of removably fixing the plurality of ejector rods to the ejector plate, or of removably fixing the plurality of detachable rods to the tip end portions of the base rods which are fixed to the ejector plate.
摘要:
A video-signal processing method for measuring a noise level of an input video signal includes the steps of detecting an intra-field or intra-frame feature for each region that is set in the input video signal, the intra-field or intra-frame feature representing a noise level in the input video signal within a field or frame; checking the intra-field or intra-frame feature against a noise-free-region threshold, and excluding regions with which the infra-field or intra-frame feature is less than the noise-free-region threshold from subjects of noise-level measurement; and outputting a result of noise-level measurement by statistically processing the intra-field or intra-frame features of regions remaining without being excluded.
摘要:
Provided is a video signal processing method of measuring a noise level of an input video signal, the method including the steps of: setting a plurality of areas in the input video signal and extracting a characteristic amount which is an index of the noise level of the input video signal for each area; detecting characteristic amounts suitable to a measurement of the noise level from among the characteristic amounts of the plurality of areas; and creating a histogram by using the detected characteristic amounts suitable to the measurement of the noise level and detecting the noise level by analyzing the histogram.