SU678495A1 - Device for reading-out microobject images - Google Patents

Description

The invention relates to the field of automation and computer technology, in particular, to a device for reading images of micro-objects.

A device for reading images of micro-objects (1, comprising a tracking scanner forming unit connected to video signal shaping and control units connected to a memory unit, a comparator unit, and NAND, AND, OR,

The disadvantage of this device is its structural complexity.

The closest in technical essence to the invention is a device comprising a tracking sweep shaping unit connected to a coincidence unit, an AND-NES element and a first memory block and a counter, a computing unit connected to the first and second memory blocks, and block for determining the coordinates of image points C2J

However, this device has insufficient accuracy and speed.

The purpose of the invention is to improve the accuracy and speed of the device.

The goal is achieved by the fact that the proposed device contains a block of coding the coordinates of image points, the inputs of which are connected to a matching block connected to the first counter, to a second memory block connected to the block determining the coordinates of the image points and to the first counter, and the output of the block coding coordinates of image points. connected to the first memory block, and the second counter connected to the NAND element, whose input is connected to the first counter, to the second memory block and to the definition blocks and coding Ani image coordinate points.

The drawing shows a block diagram of the device.

It contains a block for forming a sweep 1, a first memory block 2, a computing block 3, a first counter 4, a match block 5, a coding block for image points 6, a second memory block 7, an AND-HE element 8, a second counter 9 and a block determine the coordinate of image points 10,

The device works as follows.

Using block 1, the contour is divided into a set of points, the coordinates of which one after another memorizes point by point block 2. At the same time, the clock pulses corresponding to each point of the contour go to the input of counter 4, which counts the total number of contour tracks. After the tracking process is completed, the pulses from the clock generator of block 1 through the match 5 block arrive at block 6, which generates b1, which determine the address of pairs of points. These codes are entered into block 2. At the same time with each pulse of the clock generator of block 1, the contents of counter 4 are reduced by I, i.e. the pairs of addresses of points are interrogated through a match block 5 until the code on counter 4 becomes zero. In the case of the code on the 4-th counter, the points with the addresses corresponding to the codes of block 6 of the memory block 2 are entered into block 3. Block 3 calculates the distance between the current pair of points and compares the result with the distance of the preceding pair of points. If the distance between the points of the current pair of points is less than the distance between the currents of the previous pair of points, then the sequence numbers of the current pair of points are stored in block 7. If the distance between TB is the tighter pair of points than the previous pair of points , then in the block 7 there are numbers of points previously memorized / lapbi.

 At the moment when the code on the ICV 4 count becomes equal, on the counter 4 ifio the signal is sent to block 7 and on block 6 the coding is set, the signal is set to the codes of block 7. At the same time, the coincidence block 5 is turned off, and The IS-NE 8 is fed to the meter 9. Counter 9, the op is the number of reduced points of the contour of the object fragment, and also performs a pairwise change of the addresses of the polled points in block 7, at which

the sum of the points to be cut from the ends of the fragment remains constant,

Each time the contents of block 6 change, the coordinates of points are entered through memory block 2 into block 3, where the distance between the current pair of contracted points is determined again and this value is compared with the previous one. When comparing the distances between the ends of the current fragment and the previous block, 7 remembers those points, the distance between which is minimal.

When on code 9 the code becomes equal to the value of the contraction, the coordinates of the points of block 7 are entered in block 1O, where the center line point is defined, connecting the ends of the fragment, which are stored in block 7. The value of the average is fixed by the ipt of the object.

The introduction of new units and design links has significantly improved the accuracy and speed of the device.

Claims (2)

1. Japanese Patent No. 49-45936,, 1sl. 97 (7) B 6, 1974., 2. US patent No. 3863218, cl. 340-146.3, 1975.