SU1718389A1 - Optoelectronic image converter - Google Patents

Abstract

This invention relates to optical information processing systems. The purpose of the invention is to expand the functionality by determining the strongest element of the image. The pixels are converted into electrical signals proportional to luminance and compared with a reference signal varying linearly. The coordinate or number of the highest element is output to the output bus. 1 il.

Description

The invention relates to automation and computing, in particular, to optical information processing systems, can be used to determine the coordinates of the image element with the maximum signal

The purpose of the invention is to expand the functionality.

The drawing shows an electrical structural diagram of the proposed device.

The device for converting image coordinates contains series-connected optical quantum generators (AGR) 1, optical modulator 2, optical splitter 3, the first LED circuit 4.1–4. resistors 5.1-5, g, a group of 6.1-bp units of comparison, element ILM 7, trigger 8, switch 9, counter 10 pulses, DAC 11 and amplifier 12, the output of which is connected to the control input of the optical modulator 2, clock generator, (GTY) 13, the output of which is connected to the signal input of the key 9. group of drivers 14.1-14.p of image elements made in the form of optical fibers of the same length, the outputs of which are connected to the second group of LEDs 15.1-15. 16.1-16.P, the outputs of which are connected to the inputs of the block 17 of the elements OR, the reference LED 18. connected to the reference resistor 19 and the inputs of the 6.1-bp units, as well as the inputs 20-22 and output 23.

The proposed device works as follows.

In the initial state, the counter 10 is in the initial, for example, zero, state, and the trigger 8 is in the zero state. The laser 1 operates in a continuous mode and a maximum level optical radiation is observed at the output of the optical module 2. The optical splitter 3. divides the radiation from the output of modulator 2 into n + 1 beams with equal intensities, which obviously exceed the intensity of the signal with the maximum level in the image. The original image is converted by formers 14.1-14.p on p.

WITH

with

oo

CA 00

h

elements and radiation from their outputs goes to the LEDs 15.1-15. P of the second group. Since when the LEDs are connected in series, the current in the circuit is determined by the minimum illumination level of the LEDs of this circuit, the signals whose levels are determined by the original image are taken from resistors 5.1-5. The levels of these signals are known to be lower than the level of the signal taken from the output of the reference resistor 19, therefore, at the outputs of Equals 6.1-bp, logical zero levels are observed. Registers 16.1-16, n are zeroed. At the same time, the coordinate codes of the corresponding image elements from the coordinate setting units (not shown in the drawing) were given to their information inputs. The GTI 13 is in working condition when the power is turned on, but its output signals to the input of the counter 10 are not received, since the key 9 is closed.

At the required time point, for example, synchronously with the change of the original image, a pulse arrives at the single input of the trigger 8, which zeroes the registers 16.1-16 n and sets the trigger 8 to the single state, as a result of which the key 9 is opened. The pulses GTI 13 through The public key 9 discretely changes the state of the counter 10, therefore the radiation intensity at the output of the optical modulator 2 will decrease discretely. It is assumed that the original image has a sufficiently clear global maximum, therefore there comes a moment When the output of the block B.I comparison, corresponding to the i-th element of the image (the element with the maximum signal level) produces a signal with the level of a logical unit, since the input signals from the 6.I block will be equal.

The output of the 6.I block will be fed to the control input of register 16.1, in which the code of the pixel with the maximum signal level is written. This code through the block 17 elements OR will go to the outputs of the device.

In addition, the output signal from the output of block 6.1 through the element OR 7 will transfer the trigger 8 to the zero state, and the counter 10 to the initial state. The whole device will return to the initial state and a new cycle of operation, similar to that described above, will occur from the moment the clock signal is applied to the single trigger input 8.

Claims (1)

Invention Formula An optoelectronic image conversion device containing an optical quantum oscillator, the source constant voltage, two groups of LEDs, a group of image element formers made in the form of optical fibers of the same length through which the optical inputs of the image elements of the device are connected to the optical inputs of the LEDs of the first group whose cathodes are connected to the output of a constant voltage source , a load resistor through which the anode of the first LED of the second group is connected to the zero potential bus, while the anode of each LED of the first group is connected to the cathode of the LED On the same number of the second group, which differs by the fact that, in order to expand the functionality by determining the most vivid picture element, a clock pulse generator, a key, a trigger, a counter, a digital-to-digital converter, an amplifier, an optical modulator, an optical splitter, reference LED, reference resistor, load resistor group, comparison element group, OR element, register group and 5, a block of OR elements, with a single trigger input and register zero reset inputs connected to the startup bus, a single trigger output connected to a key control input, a clock pulse output connected to a counting key 0 by the counter input, the output of which is connected through a series-connected digital-to-analog converter and an amplifier connected to the control input of an optical modulator through which the optical output of the optical modulator A 5 quantum generator is connected to the optical splitter input, the outputs of which are connected to the optical inputs of the corresponding second diodes, the anodes of which, besides the first, are connected to the zero potential bus through the corresponding load resistors of the group, the additional output of the optical splitter is connected to the optical input of the reference LED whose cathode is connected to the output of a constant voltage source, and the anode to the first inputs of the comparison group elements and through the reference resistor to the bus th potential, the terminals of the load resistor and load resistors 0 groups are connected to the second inputs of the corresponding group comparison elements, the outputs of which are connected to the recording inputs of the corresponding registers and through the OR element to the counter reset input and to zero 5 with the trigger input, the information inputs of the registers are connected to the corresponding buses of the coordinates of the image elements, and the outputs of the registers through the block of OR elements are connected to the output of the device.