RU1791833C - Device for isolation of elements of images of mobile objects - Google Patents

Abstract

The invention relates to automation and computer technology, in particular to devices for recognizing images of objects. A positive effect is to simplify the cell and increase its reliability. The device comprises a matrix of image processing cells, each of which consists of two D-toggers, an element EXCLUSIVE OR AND, element 1; OR, two elements I. 1 ml.

Description

The invention relates to the field of automation and computer engineering, in particular to devices for recognizing images of objects.

A well-known cell for extracting image elements of moving objects, containing two AND elements, a delay element, an inverter and a single-vibrator, receives a signal from the corresponding photodetector at the information input of the cell. Using the element I. of the delay element and the inverter, the fact of the movement of the image element is determined. In this case, an impulse is generated, which propagates through all the cells of the device corresponding to the image of the given object. A single-vibrator of each such cell generates a pulse of a given duration, which arrives at the information output, and thus, pulses appear at the outputs of all cells to which the image of a moving object arrives. If the image of the object

constantly, such pulses are not generated.

A disadvantage of the described cell is its complexity, due to the complexity of manufacturing delay elements and single-vibrators in the manufacture of a matrix of cells using integrated technology. Another disadvantage is the low reliability of the cell matrix due to possible malfunctions due to the spread in the parameters of the delay elements and one-shots in different cells.

The closest technical solution is a cell for extracting image elements of moving objects, containing two OR elements, a delay element, an EXCLUSIVE OR element, and an I. element. The signal from the output of the corresponding photodetector is input to the cell. Using the delay element and the EXCLUSIVE OR element, the fact of moving the image element by issuing a positive polarity pulse cell to the output output is determined. Such

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the pulse propagates due to the bonds between the cells of the cell matrix over all cells corresponding to the image of the moving object and, passing through the OR element and the And element, triggers a one-shot in each cell, generating a pulse of a given duration. These pulses are fed to the second information outputs of the cells . If the image of this object does not change, then such pulses are not generated.

The disadvantages of this device are its complexity, due to the complexity of manufacturing delay elements and single vibrators in the manufacture of a matrix of cells using integrated technology, and low reliability due to possible failures due to the spread of parameters of delay elements and single vibrators.

The purpose of the invention is to simplify a cell and increase its reliability.

The goal is achieved in that the device for separating elements of image processing cells, each of which contains an EXCLUSIVE OR element, an OR element, four inputs of which are connected to the outputs of the corresponding adjacent image processing cells, and an And element, the first input of which is connected to the output of the OR element, and the second input is to the corresponding information input of the device, the cell additionally contains the first and second D-triggers and the second element And, while the corresponding information inputs of the device are connected to the D-input of D-flip-flops, the output of the first And element is connected to the first input of the second And element and is the output of the cell, the first control input of the device is connected to the inputs of the D-triggers, the second and third control inputs of the device are connected to the C-inputs of the corresponding D-triggers , the fourth control input of the device is connected to the second input of the second AND element, while the outputs of the first and second D-flip-flops are connected to the corresponding inputs of the EXCLUSIVE OR element, the output of which is connected to the first input of the OR element.

The drawing shows a circuit diagram of a cell for highlighting image elements of moving objects.

The cell for extracting image elements of moving objects contains the first 1, second 2 D-flip-flops, the element EXCLUSIVE OR 3, the OR element, the first 5 and the second 6 elements. I. The information input D of the cell is connected to the D-leads of D-flip-flops 1, 2 and to the second input of the first

element And 5. The group of inputs of the cell V1, V2, V3, V4 is connected respectively to the second, third, fourth and fifth input of the element OR 4. The first output of the cell V

connected to the output of the element And 5 and to the first input of the second element And 6. The second output Q, which is the information output of the cell, is connected to the output of the second element And 6. The first control input

0 cells R are connected to the inputs of RD-flip-flops 1,2, the second control input Ci is connected to the input C of the first D-flip-flop 1, the third control input C2 is connected to the input C of the second D-flip-flop 2, the fourth control input СЗ is connected to the second input of the second element AND 6. The outputs of the D-triggers 1, 2 are connected to the corresponding inputs of the EXCLUSIVE OR 3 element, the output of which is connected to the first input of the OR element 4.

0 The cell works as follows.

The beginning of the cell operation corresponds to the supply of a pulse to the first control input R, which leads to the setting of D-flip-flops 1,2 to the zero state. Then, the image element signal from the corresponding photodetector arrives at the cell informational input. From the control device, alternately to the second C1, then to the third C2, the control inputs of the cell

0, pulses are received to isolate the elements of the moving images, due to which the contents of the first 1, then the second 2 D-flip-flops are rewritten. If between work steps

5 of the cell, the image element is moving), then the D-flip-flops 1, 2 are in different states, and at the output of the EXCLUSIVE OR 3 element a positive pulse is generated with a duration approximately equal to the repetition period of the clock pulses.

The specified pulse passes to the first output of the V cell and through the intercellular bonds V1, V2, V3, V4 propagates in

5 over the course of time gz only along those cells of the matrix of cells that correspond to the image elements of the moving object. This is due to the gating of the passage of pulses through the first element AND

0. 5 by a signal from the information input D of the cell, which leads to the cessation of the propagation of the pulse beyond the image of this object, in which at least one image element has changed during the operation cycle.

The pulse propagation process occurs during the action of a clock pulse acting on either the second or third control inputs of the cell. Between clock pulses occurs

issuing image elements of moving objects through the second AND element 6 of each cell opened by the fourth control signal.

The cell operates continuously in the presence of control signals C1, C2, C3.

A positive effect of the claimed device for extracting image elements of moving objects is the simplification and increase of its reliability. Simplification is achieved by eliminating from each cell a delay element and a single-shot. These elements, designed for long pulse durations, contain RC chains, which are difficult to complete in a single technological cycle, which usually leads to the need to use hybrid technology. In addition, the main parameters of the delay element and one-shot for different cells of the matrix can have a significant spread, which can lead to malfunction of the prototype cell.

Claims (1)

SUMMARY OF THE INVENTION A device for extracting image elements of moving objects, comprising a matrix of image processing cells, each of which contains an EXCLUSIVE OR element, an OR element, four 0 5 0 5 0 the input of which is connected to the outputs of the corresponding adjacent image processing cells, and the output to the first input of the first element And, the second input of which is the corresponding information input of the device, characterized in that, in order to simplify and improve the reliability of the device, each cell further comprises a first and the second D-triggers and the second element And, the D-inputs of the triggers of each cell are connected to the corresponding information input of the device, the R-inputs of the D-triggers of all cells are connected to the first control in Ode of the device, the C-inputs of the first and second D-flip-flops of all cells are connected respectively to the second and third control inputs of the device, and the outputs of the D-flip-flops of each cell are connected to the inputs of the EXCLUSIVE OR element, the output of which is connected to the fifth input of the OR element , the output of the first element And is connected to the first input of the second element And and is the output of the cell, the output of the second element And of each cell is the corresponding information output of the device, and the second inputs of the second elements And of all cells are combined and are The Fourth control input device.