SU935813A1 - Video signal optical electronic analyzer - Google Patents

Description

(54) OPTOELECTRONIC SIGNAL ANALYZER

The invention relates to the processing of optical information and can be used for the wounding of object recognition tasks and the evaluation of their structural properties.

The closest to the present invention is a correlator containing signal formers on devices with charge coupling, adders, a clock generator, an input unit and a recorder ij

However, the speed of signal analysis is insufficient for them.

The purpose of the invention is to increase the speed of image signal analysis.

This goal is achieved by the fact that an optoelectronic image signal analyzer containing a block of image signal input, image signal conditioners on devices with charge coupling, a clock generator associated with the control inputs of all drivers, and summers by the number of drivers are connected via a battery and to the inputs of the memory and recording unit, which is also associated with the second output of the clock generator and with the input of the signal input unit, additional IZ;

2

A harmonic signal generator, a light guide and phototransistors were introduced, with the photoressers in each driver connected between the outputs of its cells and the inputs of the adder, the output of the generator of harmonic signals connected to the second inputs of all drivers, and the optical inputs of all phototransistors through the fiber connected to the output of the unit input image signals.

The drawing shows a structural diagram of the analyzer.

The analyzer contains a generator 1

15 harmonic signals, 2 image signal generators on devices with charge-coupled communication (CCD), phototransistors 3, totalizers 4f meters 5, light guide 6, input block 7

20 image signals, a memory and registration block 8 and a clock pulse generator 9.

The analyzer works as follows.

25

A harmonic signal of a certain frequency, generated by generator 1, is simultaneously input into all drivers 2 on a CCD having non-destructive signal readout

Claims (2)

30 from each cell. At this moment, the phototransistors 3 through the fiber 6 from block 7 receives radiation from the elements of the optical image. The harmonic signals under the influence of the generator voltage 9 clock pulses move along the ruler of the formers 2. The change in the voltage on the floating diffuse region caused by the passing charge packet is detected by the source follower of the formers 2 whose load is the phototransistors 3. The conductivity of the phototransistor can be controlled using a signal from an optical image element. The change in the current flowing through the phonors of the spinners 2 and phototransistors 3 depends on the controlled conductivity and voltage induced by the charge in the floating diffusion region of the formers 2. The currents, proportional to the products, are fed to the adders 4. From the output of the adders 4, a signal is taken proportional to the sum of the products of the harmonic signal elements and the optical signal element. When moving under the action of the generator 1 of electric charge pulses produced by harmonic signals, the readings of the meters 5 change. Block 8 records their maximum harmonic value. It is proportional to the relative magnitude of the spatial harmonic of the optical image, having a frequency fc, a coefficient depending on the linear dimensions of the CCD g cell; f «is the frequency of the electrical system: f is the frequency of the clock pulses. Then, the shaper 2 receives a harmonic signal from another part and fixes the maximum value of the signal taken from the pulsators 4 to the other spatial frequency. The set of maximum values of such signals depending on the spatial frequency and is the spectrum of each row of the optical image. Rotation of the optical image relative to the plan of the light guide 6 in block 7 changes the direction of the lines along which the spectrum is determined. The proposed optoelectronic spectrum analyzer is faster than the existing instruments by moving the harmonic signal with a CCD and does not require prior registration, the optical image on a transparent transparency. The optical image analyzer also allows analyzing both an unregistered optical image recorded on any carrier, and the movement of harmonic electrical signals using CCD cells improves the speed of the operation of obtaining and analyzing the spectrum of the optical image. An image optoelectronic image signal analyzer containing an image signal input unit, an image signal generator on devices with charge coupling, a clock pulse generator associated with a pack: equalizing inputs of all drivers, and adders for the number of drivers connected through meters to the inputs of the memory and recording unit, also associated with the second output of the clock generator and with the input of the avod signal unit, distinguished by the fact that, in order to increase; growth analysis, it additionally introduced a generator of harmonic signals, a light guide and phototransistors, with phototransistors in each of the IOROTs connected between the outputs of its cells and the inputs of the circuits; the inputs of all phototransistors are connected via a fiber to the output of an image signal input unit. Sources of information received at the time of examination 1, Semiconductor image signal conditioners Paul Ed. P. Yespera et al., T-IR, J.979, p. 293297,