摘要:
Color correction is conducted in a color printing system for negatives having undesirable color balance. The negatives are classified into groups, namely a group consisting of under-exposed negatives, a group consisting of over-exposed negatives, a group consisting of negatives exposed under tungsten light, a group consisting of negatives exposed under fluorescent light, a group consisting of negatives susceptible to color failure, a group consisting of negatives having high color temperature, a group consisting of negatives having low color temperature and a group consisting of aged negatives. In the color printing system, color correction is conducted in accordance with the group to which the negative to be printed belongs. The classification is carried out by measuring various characteristics such as large area transmission density (LATD), red, green and blue large area transmission densities, hue of the maximum density point, and ratio of area of particular colors.
摘要:
A plurality of cDNAs each having a known different base sequence are labeled with a fluorescent dye (FITC), whereby F-cDNA is prepared. The F-cDNA is disposed at a plurality of predetermined positions on the slide glass of a DNA micro array chip. Cy5-cDNA is prepared by synthesizing cDNA from poly(A)-mRNA in the presence of a fluorescent dye (Cy5). The Cy5-cDNA is placed on the DNA micro array chip and hybridized to the F-cDNA. After hybridization, the DNA micro array chip is read by a quantitative apparatus incorporated with an analyzer in which information about the base composition ratio and base length of cDNA has been registered.
摘要:
A surface plasmon sensor comprises a prism, a metal film, which is formed on one surface of the prism and is brought into contact with a sample, and a light source for producing a light beam. An optical system causes the light beam to pass through the prism and to impinge upon an interface between the prism and the metal film such that various different angles of incidence may be obtained with respect to the interface. A photodetector detects an intensity of the light beam, which has been totally reflected from the interface, with respect to each of the various different angles of incidence. An electrode stands facing the metal film with a liquid sample intervening therebetween, and a DC voltage is applied across the electrode and the metal film. A substance contained in the liquid sample is thus analyzed quickly and with a high sensitivity.
摘要:
A video image storage device comprises a signal input means capable of analog-to-digital conversion of input video signals including various types of scanning lines such as different numbers of scanning lines, a frame memory means capable of memorizing image signals and signal output means. The video image storage device further comprises an input signal generating means, an output signal generating means and a frame memory control means. The input signal generating means comprises a N multiplying circuit capable of N multiplying horizontal synchronizing pulses. The number of N in a dividing circuit can be arbitarily determined by the relation between effective image period and blanking period, and thus the video image storage device can store input video signals having different scanning line numbers which depend upon the types of diagnostic modalities.
摘要:
An automatic frequency pulling circuit produces a signal in synchronism with a horizontal synchronizing signal from a video signal processing device or the like. The automatic frequency pulling circuit comprises an equalizing pulse remover responsive to a synchronizing signal separated from a composite video signal for alternately removing equalizing pulses therefrom, and a PLL circuit composed of at least a phase comparator and a voltage-controlled oscillator. The phase comparator is arranged to compare the phases of an output from the equalizing pulse remover and an output from the voltage-controlled oscillator, for thereby producing the signal in synchronism with the horizontal synchronizing signal. The signal thus generated is utilized in a video monitor, for example, to display accurate images thereon.
摘要:
A particular color is defined in terms of red, green and blue densities thereof. When the densities fall within a predetermined ellipsoid in a three-dimensional chromaticity coordinate system the axes of which respectively represent the red, green and blue densities, the color is defined to be of the particular color. The ellipsoid is represented by the following formula.dS.sup.2 =C.sub.11 dB.sup.2 +2C.sub.12 dB.multidot.dG+C.sub.22 dG.sup.2 +2C.sub.23 dG.multidot.dR+C.sub.33 dR.sup.2 +2C.sub.31 dR.multidot.dBwhereindB=B-BdG=G-GdR=R-RB: blue density of measured pointG: green density of measured pointR: red density of measured pointB: average blue densityG: average green densityR: average red densityRed, green and blue densities of a number of points on a color negative to be printed are measured by a measuring means. The outputs of the measuring means are normalized by a normalizing circuit so that equal level of density signals can be obtained regardless of the gamma value and the sensitivity of the negatives when the same subject matter is photographed under the same conditions. The normalized densities are put into said formula and dS.sup.2 for each of the measured points is calculated by a computing circuit. The calculated dS.sup.2 is compared with a predetermined constant K by a comparator. When the calculated dS.sup.2 is not larger than the constant K, the measured point is determined to be of the particular color.
摘要:
Red, green and blue densities of a number of points on a color negative or original are measured and the measured values are plotted in a coordinate system. When the measured values of the densities are contained in a predetermined region of the coordinate system defined as the flesh color region, the measured point is determined to be of flesh color. When the number of points determined to be of flesh color is not less than 13 among 748 points sampled, for instance, the color original is determined to have a subject matter of a human figure. Then, in printing the color negative the exposure is controlled to reproduce a flesh color of desired color balance and density.
摘要:
A plurality of cDNAs each having a known different base sequence are labeled with a fluorescent dye (FITC), whereby F-cDNA is prepared. The F-cDNA is disposed at a plurality of predetermined positions on the slide glass of a DNA micro array chip. Cy5-cDNA is prepared by synthesizing cDNA from poly(A)-mRNA in the presence of a fluorescent dye (Cy5). The Cy5-cDNA is placed on the DNA micro array chip and hybridized to the F-cDNA. After hybridization, the DNA micro array chip is read by a quantitative apparatus incorporated with an analyzer in which information about the base composition ratio and base length of cDNA has been registered.
摘要:
A surface plasmon sensor comprises a prism, a metal film, which is formed on one surface of the prism and is brought into contact with a sample, and a light source for producing a light beam. An optical system causes the light beam to pass through the prism and to impinge upon an interface between the prism and the metal film such that various different angles of incidence may be obtained with respect to the interface. A photodetector detects an intensity of the light beam, which has been totally reflected from the interface, with respect to each of the various different angles of incidence. An electrode stands facing the metal film with a liquid sample intervening therebetween, and a DC voltage is applied across the electrode and the metal film. A substance contained in the liquid sample is thus analyzed quickly and with a high sensitivity.
摘要:
A controller for a CRT display apparatus which is capable of displaying an image selectively either in an interlace mode or in a non-interlace mode and which has a function for displaying the image in raster erase mode. The controller has a field detection circuit capable of judging whether the present mode is the interlace mode or the non-interlace mode, and a mode setting circuit allowing the CRT display apparatus to display the image in the raster erase mode which is changed so as to match the interlace display mode or in the non-interlace display mode switched over therebetween in accordance with the result of judgment conducted by said field detection circuit. In consequence, raster erase matching with the selected display mode can be selected and effected automatically.