SU1269166A2 - Device for counting number of objects - Google Patents

Abstract

The invention is additional to the author. St. No. 951347 and relates to automation and television image analysis for subsequent counting. The device provides high accuracy due to the fact that the output signal of the sensitivity adjustment circuit is memorized.

Description

TV sensor for subsequent measurements. The device contains information carrier 1 optically coupled to a television sensor 2. Sensor 2 includes a sensitivity controller 17. In addition, the device contains a block 3 quantization, indicator 4, the distributor

5 pulses, three blocks 6, 8 and 13. memory, recorder 7, logic block 9, key 16 and switch 15, the sensitivity control signal of sensor 2 is fed through switch 15 either from memory block 1 or from sensitivity regulator 1 7 depending on the state of the key. 3 silt ,, 1 tab.

one

The invention relates to automation and television image analysis, in particular, devices for counting the number of objects in the field of view of a television sensor can be used for in vivo morphometric analysis of biological objects and is an improvement of the device on author. St. To “951347.

The purpose of the invention is to increase the accuracy of counting during the lifetime analysis of biological objects in the process of their cultivation using a television sensor with an automatic sensitivity control circuit.

FIG. 1 is a block diagram of the deviceJ in FIG. 2 block diagram of the logic unit; in fig. 3 - algorithm of operation of a logical block when traversing the contour of an image of an object.

The device contains information carrier 1, optically connected with television sensor 2, quantization unit 3, indicator 4, pulse distributor 5, first memory block 6, recorder 7 to which the second memory block 8 and logic block 9 are connected. memory blocks occur synchronously. Logic unit 9 includes a control unit 10, a comparison unit 11, a counter of 12 objects, a memory unit 13. In addition, a third memory block 14, a switch 15 and a key 16 are inserted into the device, and the sensor 2 is equipped with a sensitivity controller 17.

The device works in the following way.

Signals from objects passing through the carrier 1 of information are converted in the television sensor 2 into a sequence of electrical video pulses of various amplitudes. The voltage from the controller 17 of the television sensor 2 enters the memory block 14, where after the first measurement of the morphometric parameters of the objects under study, the signal from the key 16 is memorized, and through the switch 15 is fed to the sensor 2 instead of the varying voltage from the regulator 17, In block 3 quantization, video signals of a given amplitude are generated. Indicator 4 performs video monitoring of the selected pulses.

When counting the number of objects in the device, the following successive cycles of operation occur. Write one image frame to the first memory block. At the same time, the address counters of the memory blocks are sequentially synchronized with the television scan, a sequential search of the memory cells. The clocking of address counters comes from the clock generator of the distributor 5 pulses, synchronized with the clock pulses of the television sensor 2,

At the end of the write cycle, the object search cycle begins. During this cycle, the first memory unit operates in read mode with sequential enumeration of memory cells. When appearing at the output of the first block, the first unit starts the cycle of traversing the first object along the contour. 3 When traversing the circuit, the first memory block 6 operates in read mode, and the second one - in write mode. The memory control unit 9 controls the logic block 9 through the memory cell search and through the distributor 5 pulses The address counters of the memory blocks are in direct or inverse counting mode, depending on the direction of the previous step and the resulting information at the output of the first memory block. To implement these operations, logic block 9 contains a control block .10, a counter of 12 objects, a comparison block 11 and a memory block 13. The direction of the previous step of scanning the memory blocks (-, -, f, I) is stored by the memory block 13 of the logic block and is transmitted to the input of the comparison block 11. The other input of the comparator unit 11 is supplied with a signal from the output of the first memory unit, which arose there after performing the indicated step. In this case, one of eight standard situations occurs, which is transmitted as a code to the input of a block 11 of the logical block 9 comparison. In block 11, the specified code is converted into a command to control the direction of scanning, which through the distributor 5 switches the address counters of the memory blocks to my or inverse account. The algorithm for forming the next scanning step by the result of the previous one, calculated for traversing the object along the contour, is shown in the table.

Direction of the previous move

The signal at the output of the first memory block

Direction of the subsequent course

i f (

Claims (1)

I f 1664 In the process of walking around the contour in the event of a situation, 1, j 1,. f1 in block 10 of logic block 9, a write signal 1 is generated in the second memory block 8, which at the end of the circuit traversal leads to the recording of the complete circuit of the object in the second memory block 8. In this case, in control block 10, a pulse is generated, transmitted to the object counter 12, and a transition command is formed to search for a new object. In the search cycle for a new object, both memory blocks operate in the row-by-line read mode. A new object is one whose contour is not yet inserted into the second memory block. The counting of the number of objects continues until the complete transfer of the contours of the objects to the second memory block. The invention The device for counting the number of objects on the author. St. No. 951347, characterized in that, in order to increase the accuracy of the device, a third block of memory, a key and a switch are inserted into it, the television sensor is equipped with a sensitivity regulator, the output of which is connected to the first inputs of the third memory block and switch; connected to the control input of the television sensor, the output of the key is connected to the second inputs of the switch and the third memory block, the output of which is connected to the third input of the switch, the second output of the television sensor is connected to the input of the sense controller telnosti. 2 fig.Z