SU951347A1 - Device for counting objects - Google Patents

Description

one

The invention relates to automation and television image analysis, in particular, to devices for counting the number of objects in the field of view of a television sensor and can be used for in vivo morphometric analysis of biological objects.

A device for counting the number of objects containing a scanning system is known. An electronic signal processing unit, a registration unit and an indicator tl.

The disadvantage of this device is the low counting rate due to the mechanical alternate presentation of the objects of the scanning system.

Closest to the invention is a device comprising a storage medium optically coupled to the sensor, a quantization unit, the input of which is connected to the first output of the sensor, and the first output to

the first input of the memory unit, the indicator whose inputs are connected to the second output of the quantization unit and the first output of the memory unit, pulse distributor, the first input of which is connected to the second output of the sensor and to the second input of the memory unit and the registration unit connected to the memory unit 2

The drawbacks of the device are the presence of two types of television systems, the impossibility of analyzing objects of complex shape, erasing information from the memory as it is read.

The purpose of the invention is to improve the accuracy of the device by increasing the reliability of the results of counting objects.

The goal is achieved in that a device containing an information carrier is optically coupled to a television sensor whose outputs are connected to the first output of the pulse distributor and to the 395 input of the quantization unit whose outputs are connected to the first input of the first memory block, the second output of which is connected with the first output of the pulse distributor, the first and second outputs of the first memory block are connected respectively to the first inputs of the recorder and indicator, the second input of which is connected to the second output of the block to The logic block and the second memory block are entered, the inputs of which are connected to the third output of the first memory block and to the first output of the logic block, and the output to the second input of the pulse distributor, the third input of which is connected to the second output of the logic block, the third output which is connected to the second input of the recorder, and the input of the logic unit is connected to the fourth output of the first memory block. In addition, the logical block contains a control unit, a comparison unit counter and a memory block, which is connected to the unit The input of which is connected to the input of the control unit whose first output is connected to the counter, the inputs of the comparison unit, the counter and the memory block are connected to the outputs of the logic unit whose input is connected to the second output of the control unit. Figure 1 shows the structural diagram of the device; figure 2 - structural diagram of the logic unit; Fig. 3 shows the algorithm of operation of a logical block when traversing the contour of an image of an object. The device contains a carrier 1 and formations optically connected to the body with a viewing sensor 2, a quantum van block 3, an indicator 4, a pulse distributor 5, a first memory block 6, a recorder 7. to which a second memory block 8 is connected and a logic block 9. The enumeration of the cells of both memory blocks occurs synchronously. Logic block 9 includes a block 10 of control, a block 11 of comparison, a counter of 12 objects, block 13 of memory. The device works as follows. 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. In block 3 quantization, video signals of a given amplitude are extracted. On indicator 4, the selected pulses are monitored. 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 5 of the pulse distributor, synchronized with the clock pulses of the television sensor 2. At the end of the recording cycle, the object search cycle begins. During this cycle, the first memory unit operates in read mode with sequential enumeration of memory cells. When the first block of memory appears at the output of the first 1, the loop bypasses the first object around the contour. When traversing the contour, the first memory unit 6 operates in the read mode, the second in the write mode. The search of the memory cells of both blocks 6 and 8 of memory is controlled by logic block 9. Which, through the pulse distributor 5, switches the address counters of the memory blocks into direct or inverse counting mode depending on the direction of the previous step and the resulting information at the output the first memory block. In order to implement these operations, the logic unit contains a control unit 10, a counter of 12 objects, a comparison unit 1-1 and a memory unit 13. The direction of the previous scanning step of the memory blocks (, - it-V) is stored by the memory unit 13 of the logic unit and transmitted to the input of the comparison unit 11. To the other input of the comparator unit 11, a signal is output from the output of the first memory unit 6, which occurred there after performing the above step. When this occurs, one of the 8 standard situations, transmitted in the form of a code to the input of the block 11 of the logic block. In block 11, the specified code is converted into a scanning direction control command, which, through the distributor 5, switches the address5 counters of the memory blocks to direct or inverse counting mode. (The figure below shows the formation algorithm for the Direction of the previous turn

The signal at the output of the first block is the next scan step based on the result of the previous one, calculated for traversing the object along the contour.

Claims (2)

In the process of bypassing the contour, when situations occur, 1, -1, -1, 1 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 contour tour leads to recording in the second memory block 8 the complete contour of this object. In this case, in the control unit 10, a pulse is generated, which is transmitted to the counter of 12 objects and a command is generated to switch to searching for a new object. In the search cycle for a new object, both memory blocks operate in the row-by-line read mode. The new object is the one whose contour has not yet been inscribed in the second memory block. The count of the number of objects continues until the complete transfer of the contours of the objects to the second memory block. The introduction of new blocks and new constructive links significantly improves the accuracy by increasing the reliability of calculating the number of biological objects during their in vivo morphometric analysis. Apparatus of the Invention A device for counting quantities of objects comprising an information carrier optically coupled to a television sensor, the outputs of which are connected to the first output of the pulse distributor and the input of a quantizing unit, the outputs of which are connected to the first input of the first memory block, the second output of which is connected to the first output of the pulse distributor, the first and second outputs of the first memory block are connected respectively to the first inputs of the recorder and the indicator, the second input of which is connected to the second output a quantizing unit house, characterized in that, in order to improve the accuracy of the device, a logical block and a second memory block are inputted into it, the inputs of which are connected to the third output of the first memory block and the first output of the logic block, and the output to the second distributor input pulses, the third input of which is connected to the second output of the logic block, the third output of which is connected to the second input of the recorder, and the input of the logic block is connected to the fourth output of the first memory block. 2. The device according to claim 1, wherein the logic unit comprises a control unit, a comparison unit, a counter and a memory unit, which is connected to the comparison unit, the output of which is connected to the input of the control unit, the first output of which is connected to the counter, the inputs of the unit the comparison, the counter and the memory unit are connected to the outputs of the logic unit, the input of which is connected to the second output of the control unit. Sources of information taken into account in the examination 1. US patent number 3699336, cl. 250-83, Z. Public. 1972. 2. Guglin I.I. To the question of the use of special scans in automatic analyzers of a set of micro-objects. Collection of ed. Khesin A.Ya. Automation of analysis of cytological preparations. Riga, Zinatne, 1975, p. (prototype). one AND ff ten Puj.2