SU1644183A1 - Device for measuring picture areas - Google Patents

Abstract

The invention relates to automation and computer technology and can be used in technical vision systems for determining areas in pattern recognition devices. The purpose of the invention is to expand the functionality and improve the accuracy of the device due to the selectivity of measuring the areas of all objects that are in the field of view during the time of reading the information frame. This goal is achieved due to the fact that the device containing a television sensor, a two-level quantization unit, a synchronous generator, a pulse generator, an OR element, an AND element, an additional marking unit, a communication code conversion unit, and a registration unit are introduced. 3 silt

Description

The invention relates to the field of automation and computer technology and can be used as part of information and measurement systems with technical vision.

The purpose of the invention is to expand the field of application of the device by measuring the areas of objects of arbitrary orientation.

Nafig 1 shows a block diagram of a device for determining the area of images; in fig. 2 is a block diagram of a connection code conversion unit; in fig. 3 is a block diagram of the registration unit.

The device for determining the area of images (Fig. 1) contains a television sensor 1, a synchronous generator 2. a two-level quantization unit 3, a marking unit 4, a pulse generator 5, a coupling code conversion unit 6, a recording unit 7, an OR element 8, an AND 9 element,

The connectivity code conversion unit (Fig. 2) contains delay elements 10-12, elements OR 13-15, shaper 16, first 17 and second 18 switches, code combination node 19, control node 20, third switch 21, decoder 22.

The registration unit (Fig. 3) contains RAM 23, the first element OR 24, the first adder 25, the first decoder 26, the first element AND 27, the first register 28, the second decoder 29, the first delay element 30, the second element OR 31, the second adder 32 , the second register 33, the third element OR 34, the second element AND 35, the element NOT 36, the second element 37 delay, the third element And 38, the third register 39.

The device works as follows.

The analyzed image, which is a set of arbitrary shapes, is transformed by progressive decomposition of television

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sensor 1 to the video signal that is fed to the input of the two-level quantization unit 3, from whose output to the input of the marking unit 4 is received a two-gradation signal corresponding to the binary image. In this case, the codes of image numbers are formed at the first and second information outputs of the marking unit, respectively, for the analyzed and previous lines. At the third output, a pulse of one clock duration is formed, corresponding to the initial element of the intersection area of the communication zones, and the pulse tact at the moment of assignment of the next number of the image of the object. During the frame reading, the second output of the synchronizing generator 2 is set to O, and the pulse generator generates pulses whose frequencies are n times higher than the horizontal scanning frequency, synchronizing the operation of blocks 4, 6 and 7, as well as the television sensor 1.

In the process of reading a picture frame, the clock pulses through AND 35, the OR element 34, and the delay element 37 having a delay somewhat longer than the duration of the clock pulse are fed to the write input of the RAM 23, rewriting the code from the output of the register 28 into the RAM 23. At the time of assignment of the next image number of the object, a pulse of one clock duration through the fourth input of the block 6 of conversion of the connectivity codes is sent to the derailment of the delay element 12, where it is delayed by one clock cycle, and to the first control input of the switch 21, Connecting the code from the first information input to the output of the switch 21, which determines the code of the address of the RAM 23. At the same time, the output of the decoder 26 has O, and the output of the decoder 29 at the time of the occurrence of the clock pulse is 1.

In this case, the register 28 is set to the initial state, and the zero code is recorded in the RAM 23.

In case of intersection of communication zones belonging to the same object, but with different initial numbers, pulses of one clock duration through the third input of the connectivity code conversion unit 6 are fed to the input of the delay element 11, to the second control input of the switch 17, through element 15 OR to the first control input of the switch 18 and through the element OR 13 to the fourth input of the code combining unit 19. From the output of the delay element 11, the pulses arrive at the second control input of the switch 18,

through the OR 14 element to the first control input of the switch 17 and through the OR 13 element to the fourth input of the code combining unit 19.

Claims (1)

Invention Formula An apparatus for determining the area of images comprising a television sensor, a pulse generator, a two-level quantization unit, a clock generator, the OR element, the AND element, the first output of the synchronous generator is connected to the input of the television sensor, the output of the element OR is connected to one input of the element And, the output of the television sensor is connected to the input of a two-level quantization unit, characterized in that, in order to expand the field of application of the device by measuring the areas of objects of arbitrary orientation, the marking unit, the conversion unit of the connectivity code, the registration unit, the output of the pulse generator is connected to the clock inputs of the clock generator. marking unit, code conversion unit the registration unit, the second output of the synchronous generator is connected to the inputs of the initial installation of the marking unit, the unit for converting the connectivity codes and the registration unit, the output of the two-level the quantization unit is connected to the first information input of the marking unit, the second and third information inputs of which are supplied with the values of logical zero, the first and second information the inputs of the marking unit are connected respectively to the first and second information inputs of the conversion code conversion unit; the first and second control outputs of the marking unit are connected respectively to the first and second control inputs of the conversion code conversion unit, the first information output of which is connected to the first information input of the unit registration, the first and second control outputs of the conversion code conversion unit are connected respectively to the first and second control inputs of the blocker p recording is the third control output conversion codes flea connectivity is connected to another input of AND gate, a third control input of the recording unit is coupled to the second output of the control labeling unit, an output register unit is a first output device and is connected to the input of the OR element, the output of the AND element is the second output of the device, the fourth control output of the connectivity code conversion block is the third output of the device. Fig1 # Vsh .1 FIG. Z G ni "I