SU1420486A1 - Element-wise analyzer of color cine image - Google Patents

Abstract

The invention relates to cinematography and printing. The purpose of the invention is to improve the quality of analysis and accuracy of measurement of the densitometric characteristics of a color image. Optics elements form in the plane of the film channel 6 spots of the required aperture. Due to the swing around the axis 21 of the optical form

Description

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with

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The scanned system is perpendicular to the movement of the negative 7 and the image is scanned. The outputs of the logarmatoro in 12 are connected to the inputs of the microprocessor calculator, which controls the operating modes of the analyzer and calculates the parameters of the analyzed image of negative 7 according to programs stored in the persistent storage device 31. 2 Il.

: The invention relates to cinematography and printing, in particular to devices for densitometric control of color images.

The purpose of the invention is to improve the quality of the analysis and the accuracy of measuring the densitometric characteristics of a color film image.

Fig, 1 shows the structural diagram of the element-by-element analyzer; Fig. 2 is an optical circuit.

The element-by-element analyzer contains an illuminator 1, forming a lens 2 Aperture 3 color separator actuator 4 of forming lens 2, measuring diaphragm 5, film channel 6 with film material 7, mechanism 8 for transporting film material 7, first electric drive 9, three-channel block of corrective optical filters channel unit of photodetectors 11 three-channel block logs (1 converter 12, three-channel block of clamps 13 level, three-channel analog-digital converter 14, clock generator 1 5, impulse 1-1st amplifier 16, LED light block 17, reference light, electric drive control unit 18, second electric drive 19, carrier 20, axle 21 ka: ani carrier 20, first parallel interface 22s control bus 23, address bus 24 , bi-directional data bus 25, central processor 26, bus controller 27, clock generator 28, programmable timer 29, reset triggering unit 30, persistent storage 31, random access memory 32, second parallel interface 33 and program No. 1 of the associated the heat of a zapter 34.

The lighter 1 contains a source, 35 light, contrash 36, heat filter 37 and zonal light filters 38.

5 The illuminator 1, consisting of a light source 35, a spherical contrasher 36 and a heat filter 37, is optically coupled through a separator containing the diaphragm 3 with the optical light filters 38 forming the lens 2, the measuring diaphragm 5, film channel 6, measuring - ripped film material 7, corrective light filters 10, with optically - remove the inputs of the block of three photoreceivers 11, Holes of the diaphragm 3, in which zonal light filters 38 are installed, are located centrally symmetrically relative to the optical

20 axis and at an angle of 120 to each other.

A forming lens 2, made of two plano-convex lenses facing each other with convex surfaces, is installed between the color of the two-pronged diaphragm 3 with the zonal light filters 38 and the measuring diaphragm 5. The radius of curvature of the cylindrically curved film channel 6 is equal to the swing arm

30 of the carrier 20 with a measuring diaphragm 5. Behind the measured film material 7, transported by the mechanism 8, there are three measuring channels, each of which contains

2 - corrected optical filters 10 installed in front of the photodetectors 11.

The outputs of the block of photodetectors 11 are connected to the inputs of the corresponding

40 three channels of the logifiers block .12, The outputs of the three channels of the block of logifiers 12 are connected to the first inputs of the corresponding channels of the block of level 13 locks, the second inputs of which are connected to the first output of the synchronous generator 15 and the input of the pulse amplifier 16, and the outputs to the second inputs of the three corresponding channels of the analog -digital converter 14. The first inputs of the three I

Analog-digital converter channels 14 are connected to the second output of the synchronous generator 15, whose input is connected to the second output of the start-reset unit 30. Block 30 start-reset the first output is connected to the generator 28 clock pulses, and the input with the third output is programmed timer 29, the second output of which is connected to the third inputs of analog-digital converter 14, and the first output to the input of control unit 18 electric drives. The first output of the electric drive control unit 18 is connected to the first electric drive 9 connected with the transport mechanism 8 of the film material 7, the second output of the block 18 is connected to the executive mechanism 4 of the forming lens 2, and the third output of the block 18 is connected to the input of the second electric drive 19 connected carrier 20 and the driver controlling the swing of the carrier 20 relative to the axis of the swing 21.

The carrier 20 is equipped with a light source 1, aperture 3 of color separators with zonal light filters 38, an actuator 4, a lens 2, a measuring diaphragm 5, corrective light filters 10, photodetectors 11, logarifmators 12, a pulse amplifier 16, reference light LEDs 17.

The reference light LEDs 17 are electrically connected to the output of the pulse amplifier 16, and optically to the outputs of the photodetector unit 11.

ten

and with the second inputs of the programmable timer 29, the persistent storage device 31, the operational storage device 32, the second parallel interface 33 and the programmable connected adapter 34.

Bidirectional inputs / outputs of the first parallel interface 22 are connected to a two- way data bus 25 connected to the first bidirectional inputs / outputs of the bus controller 27, programmable timer 29, random access memory 32, second parallel interface 33, programmable communication adapter 34 and with the outputs of the persistent storage device 31. The fourth input of the first parallel interface 22 is connected to the first input of the generator 28 clock pulses, with the third inputs of the programmable time ra 29 th vtoro25 pargshlelnogo interface 33 and a programmable znogo communication adapter 34 and the first inputs of the CPU 26 and bus controller 27. The second and third bidirectional inputs / outputs of the bus controller 27 are connected respectively to the first and second bidirectional inputs / outputs of the central processor 26, the second and third inputs of which are connected respectively to the second and third outputs of the 28 clock pulse generator. The elemental analyzer of a known film image works as follows.

The luminous flux from the light source 1 passes the color separation aperture 3 and is divided by zone light filters 38 into three beams in three zones of the spectrum, which form a 1-mm volume

35

40

50

The outputs of the three channels of analog-to-digital genset 2 are assembled at analyzing converter 14 and connected to the first element of the first parallel interface 22, the second inputs of which are connected to the control bus 23 connected to the controller outputs. 27 buses and with the first yields of the programmable timer 29, the persistent storage device 31, the random access memory 32, the second parallel interface 33, and the programmable communication adapter 34.

The third inputs of the first parallel interface 22 are connected to the address bus 24 connected to the outputs of center 55

of the material 7 and further by the diverging beams of rays, modulated by the transparency of the image element, are guided through the corresponding corrective light filters 10 to the photo receivers 11 of the measuring channels located axisymmetrically (centrally symmetrically) and perpendicular to the direction of the beam distribution. The length of the slit film, channel a 6 is equal to the width of the frame, the size of the measuring diaphragm 5 can vary from 0.3 to 1 mm. Sme

about 10

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and with the second inputs of the programmable timer 29, the persistent storage device 31, the operational storage device 32, the second parallel interface 33 and the programmable connected adapter 34.

Bidirectional inputs / outputs of the first parallel interface 22 are connected to a two- way data bus 25 connected to the first bidirectional inputs / outputs of the bus controller 27, programmable timer 29, random access memory 32, second parallel interface 33, programmable communication adapter 34 and with the outputs of the permanent storage device 31. The fourth input of the first parallel interface 22 is connected to the first input of the generator 28 clock pulses, with the third inputs of the programmable time ra 29 th vtoro25 pargshlelnogo interface 33 and a programmable znogo communication adapter 34 and the first inputs of the CPU 26 and bus controller 27. The second and third bidirectional inputs / outputs of the bus controller 27 are connected respectively to the first and second bidirectional inputs / outputs of the central processor 26, the second and third inputs of which are connected respectively to the second and third outputs 1 of the 28 clock pulse generator. The elemental analyzer of a known film image works as follows.

The luminous flux from the light source 1 passes the color separation aperture 3 and is divided by zone light filters 38 into three beams in three zones of the spectrum, which form a 1-gm region

40

50

g, lens 2 is collected on the analyzed film frame element

55

of the material 7 and further by the diverging beams of rays, modulated by the transparency of the image element, are guided through the corresponding corrective light filters 10 to the photo receivers 11 of the measuring channels located axisymmetrically (centrally symmetrically) and perpendicular to the direction of the beam distribution. The length of the slit film, channel a 6 is equal to the width of the frame, the size of the measuring diaphragm 5 can vary from 0.3 to 1 mm. The displacement of a light spot formed by beams of rays on the analyzed element, a film frame, across the field is performed by swinging all elements of the optical system (FIG. 2) mounted on carrier-20 around axis 21 relative to the slot of film channel 6: in the direction perpendicular to the movement of the film material 7.; When the device is turned on, the 30 e & p-usk-reset unit generates a signal j at the perimeter output, the triggering synchro generator 15, and at the second output

signal5. The clock input to the generator input is 28 clock pulses and the device performs a general reset. At the command of a general reset, the central processor 26 starts the processing of the program recorded in the permanent storage device 31 "In accordance with the program central

irocessor 26 programs the first pa ld allelic interface 22 for data input from three corresponding channels of analog-digital converter 14, programmable timer 29 for forming intervals 5 matching the operation of block 18 of electric drives 9 and 19 and anglichy-digital converter 14s of the second parallel interface 33 - for data input to peripheral devices and a communication adapter 34 - for asynchronous exchange of accessory data with the display. At the end of the ANO LOGO-1SCHFREE conversion of each reference of the optical separations mioTHocTHj produced 1 by an analog-to-digital converter k.H, the central processor 26 sequentially reads information from the three ports of the parallel interface 22 to the two-directional pin 25 of data and writes this information into three cells of operational memory

32 at addresses different by one. Then the programmable timer 29 generates a pulse at its second output, the start of the conversion, the input to the third inputs of the three channels of the analog-to-digital converter 145 and the cycle repeats.

nosyie of passing the last cycle of the ny-digital-conversion nporpfaMMHpyef-ifctfi timer 29 generates, at its first output, a pulse sent to the drive control unit 18 and the transport

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five

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five

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Negation 7 in the film channel 6 is processed, and the central processor 26 starts processing the optical density readings recorded in the operational memory 32, a frame which results, for example, in selecting the exposure conditions for printing this frame. Upon completion of the information processing, the central processor 26 by means of the second parallel interface 33 and the communication adapter 34 outputs the pass-. tailoring conditions for printing a frame (from a copying machine) to external devices (alphanumeric printing device, ribbon puncher, display screen - not shown),

After finishing the output of the passport conditions, transporting the material 7 in the film channel 6 and installing the new movie frame, the start-reset unit 30 under the influence of the signal from the third output of the programmable timer 29 generates a general reset signal of the device, which enters the clock generator 28, then the new one starts program development cycle.

During the operation of the device, the KON T-scooter 27 tires buffers the 25 data bus 1X of the central processor 26 and generates the signals of the control bus 23. The bi-directional data bus 25 exchanges data between the elements of the entire device connected to it, and the address bus 24 addresses these elements.

The clock pulse generator 28 generates clock signals and synchronizes the global reset signal with the operation of the central processor 26.

To scan the analyzed image, an optical reference is used, which is a carrier 20, with which elements 1-6 of the optical system of the device are rigidly connected and aligned, forming the required size on the analyzed image element, which is modulated by the transparency The negative 7 is analyzed by the analyzing head, consisting of corrective light filters 10, photoreceivers 11 and logarithmors 14 and also tightly coupled to carrier 20.

7

All elements of the optical system of the analyzing head are fixed on the carrier 20, swing around axis 2 with a given amplitude by means of an electric drive 19 connected to the output of the electric drive control unit 18. The swing amplitude is set by the frame width of the analyzed negative, which is what row scanning is performed for. The frame scan is set by the continuous movement of the negative 7 by the electric drive 9, also connected to the output of the electric drive control unit 18.

Claims (1)

Invention Formula Single-element color film analyzer, containing successively arranged illuminator, forming lens, associated with extinguishing mechanism, film channel, three-channel divider, 14 and a block of photodetectors, LEDs supporting the filter surface of the filter kany light, optically connected with the photodetectors, and electrically - with the outputs of the pulse amplifier, the harmonizers connected by the inputs to the outputs of the photodetectors, and the outputs to the first inputs of the level clamps, the transport mechanism of the film material associated with the first electric drive, the second electric drive and the synchronous generator connected to the second output of the pulse generator and the second inputs of the clamps Level, characterized in that, in order to improve the quality and accuracy of the color densitometric analysis of film images, the measuring diaphragm is additionally introduced into it gma, corrective light filters, trehk35 40 their number is equal to the number of holes in the aperture diaphragm of the separator, the optical measuring channels are mounted on the carrier with a swing axis parallel and ciiMMeT-typical of the cylindrical surface of the film channel, and the plane of contact of the carrier is perpendicular to the cylindrical surface of the film channel centered on the swing axis carrier, while the carrier is connected with the second electric drive, the input of which is connected to the third output of the control unit of electric drives, the first output of which n to the input of the first drive, the second output - to an input of the actuator for-; miruyuschego lens, and inputs - with analogue-to-digital conversion with i first programmable output, electric drive control unit, first and second parallel interfaces, control bus, address width, bi-directional data width, central processor, bus controller, clock generator, programmable timer, start-reset unit , read-only memory, random access memory, programmable communication adapter and carrier, the color divider being made in the form of an aperture with at least three holes and a zone bubbled filters in them, raspolo50 55 the first inputs of the three channels of the analog-digital converter are connected to the second output of the clock generator, the second inputs to the outputs j of three corresponding level clamps, the third inputs to the second output of the programmable timer, and the outputs to the first inputs of the three ports of the first parallel interface , the second inputs of which are connected to the control bus connected to the outputs of the bus controller and the first inputs of the programmable timer, the second parallel interface, the constant 20486 ten 15 20 centrally symmetrically with respect to the optical axis, and installed before the forming lens, with corrective light filters installed in front of the photodetectors located centrally symmetrically with respect to the optical axis and centrally symmetrically with respect to the separations of the diaphragm of the separator and with the center of symmetry on the cylindrical surface of the film channel in the measuring a diaphragm located between the forming lens and the film channel, while the illuminator forming the lens with tion mechanism, iris color separators with zonal filters, the measuring diaphragm, freshly todiody reference light, photodetectors with filters corrective optical measuring channels form optically conjugated to the center of the measuring diaphragm on. cylin5 drike surface of the filter five 0 their number is equal to the number of holes in the aperture diaphragm of the separator, the optical measuring channels are mounted on the carrier with a swing axis parallel and ciiMMeT-typical of the cylindrical surface of the film channel, and the plane of contact of the carrier is perpendicular to the cylindrical surface of the film channel centered on the swing axis carrier, while the carrier is connected with the second electric drive, the input of which is connected to the third output of the control unit of electric drives, the first output of which n to the input of the first drive, the second output - to an input of the actuator for-; miruyuschego lens, and inputs - with 0 five the first inputs of the three channels of the analog-digital converter are connected to the second output of the clock generator, the second inputs to the outputs j of three corresponding level clamps, the third inputs to the second output of the programmable timer, and the outputs to the first inputs of the three ports of the first parallel interface , the second inputs of which are connected to the control bus connected to the outputs of the bus controller and the first inputs of the programmable timer, the second parallel interface, the constant the third parallel interface inputs are connected to the address bus connected to the outputs of the central processor and to the second inputs of the programmable timer, the second parallel interface, the persistent storage device, the operational memory, and programmable communication adapter, two-way inputs / outputs of the first parallel interface are connected to a bidirectional data bus connected to the first bidirectional inputs / outputs of the bus controller, programmable timer, second parallel interface, random access memory and progammed communication adapter and to the outputs of the permanent memory device, the fourth input of the first parallel interface is connected to the first output of the clock, the third inputs of the programmable timer, the second parallel interface and the programmable communication adapter, the first input of the central processor and the first input of the bus controller, the second and third bi-directional inputs / / outputs respectively sub-. Key to the first and second bidirectional-. The central processor's inputs / outputs, the second and third inputs of which are connected respectively to the second and third outputs of the clock, whose input is connected to the first output of the block; start-reset, connected to the second output with the input of the clock generator, and the input to the third output of the programmable timer // //