SU942070A1 - Device for reading-out graphic information - Google Patents

Description

(54) DEVICE FOR READING GRAPHIC

INFORMATION

one

This invention relates to automation. and computer technology, in particular, to devices for reading graphic information, and can be used in selecting characteristics of the image.

A device for reading graphic information is known, which contains a television sensor connected to an indicator and a discrete plant generator. ra, manual input block, counter, compa- tor, Q rator, register, marker generator, and Llj parameter analyzer. A well-known device does not allow reading graphic information while simultaneously analyzing 5 several fragments.

The closest to the present invention is a device containing a discrete raster generator connected to a shadikator, with a counter and with parameter analyzers connected to a computer, a manual input block, register, comparator connected to the counter and with a marker signal converter connected to indicator, logical blocks and elements AND, OR 2.

Its disadvantage lies in the structural complexity of the device.

The purpose of the invention is to simplify the device.

The goal is achieved by the fact that a device containing a television sensor connected to an indicator and a discrete raster generator, the output of which is connected to the counter and to the same inputs of parameter analyzers, the other inputs of which are connected to the key and forms of the marker marker circuit, and the outputs are connected to a computing unit, a manual information entry unit connected to the indicator and to the register, and a comparator, whose inputs are connected to the counter and to the register, and the output is connected to the signal generator of the marker, edeny block CE, lectures boundaries image fragments, coupled to the output television encoder and the counter and the switching pulse generator connected to the block boundaries fragments section Images and audio to one input key, the other input of which is connected with a television transmitter. The boundary selection unit of 4 image fragments contains a delay element, the input of which is the input of the block, and the output is connected to the strobe pulse generator, the output of which is the output of the device. FIG. 1 is a block diagram of the device; in fig. 2 shows a view of the image on the display screen. The device includes a television sensor 1, an indicator 2, a generator 3 of a discrete raster, a block 4 for selecting the boundaries of image fragments, a key 5, a counter 6, a generator of 7 switching pulses, a block 8 for manually entering information, a register 9, a comparator U, fs, a dimmer 11 signals markers, analyzers 12 parameters, a computing unit 13, At the same time, unit 4 contains a generator 14 pulse-gates and a delay element 15. The device works as follows. The video signal with sync pulses from sensor 1 is fed to indicator 2, in which you can watch an image made up of fragments, on generator 3 of a discrete raster, on block 4 and on key 5. Block 4 selects pulses from the boundaries of individual fragments. From these pulses, a generator of 7 pulses is triggered. These pulses control key 5. At the same time, when analyzing one of the fragments, generator 7 controls the key so that the signal from sensor 1 goes to one of analyzers 12. At the same time, pulses go to counter 6. The latter starts counting pulses from generator 3. Indicator 2 matched block 8. Marker coordinates using block 8 are entered into register 9 and then this code is permanently present at the inputs of the 1O comparator. Block 8 indicates the position of the marker on the upper left fragment. This condition must be met in order to ensure duplication of the marker in all other fragments. The rest of the markers will be formed during the decomposition frame after the operator has specified the position of the marker. During the time of transmission of the first fragment, the counter 6 at some point, time, forms a code that matches the code in register 9. A pulse from the comparator 10 starts the formatter 11. This marker will be observed on the screen. The pulses from the boundary of the first fragment are reset by the counter 6 and it will again start counting the pulses from generator 3 to coincide with the code in register 9. If the codes coincide, the marker will be highlighted again, but in the next fragment, etc. Thus, the marker will automatically be reproduced in all the fragments in those elements that were indicated by the operator in the first fragment. From the imaging unit 11, the signal goes to the second inputs of all analyzers 12 parameters and to the indicator 2. At the moment of connecting the corresponding fragment, the computing unit 13 receives pulses from the segment (the fragment indicated by the marker. An important point for the device to work is reset of the counter 6. The counter is running in the form of two consecutively included counters, coordinates for a row and coordinates for a frame (vertically). To ensure correct formation of Markers, a coordinate counter for a row (horizontal coordinate) A vertical border pulse (in each line and from each border) is reset to zero, the frame counter (vertical coordinate) is reset to zero by a horizontal border pulse. Let the operator set the marker to a point on the fragment. From the beginning of the first line, counter 6 will start counting pulses discrete raster generator 3. When the codes of the counters included in counter 6 coincide with the coordinate code in register 9, a pulse from comparator 10 will be started by form 11. To separate the fragments, block 4 contains a delay element 15 ki, the pulse from which controls the generator 14 (vertical gate). This strobe is not observed in the image, but the border of the two fragments must be clearly distinguishable. If necessary, the signal from the generator 14 can be replaced in the image. When a pulse-gate arrives at the counter 6, only the counter of the horizontal coordinate is reset to zero. Thus, during the time of one line, the counter twice counts the pulses from generation 3. The vertical coordinate counter is not reset, since there are no horizontal boundaries of the fragments; both counters also come from horizontal and personnel pulses, respectively. Such an organization of counting pulses in counter 6 allows in the line on which in (fragment A there is a marker that the operator censorizes) to form the Second marker for fragment B, the horizontal countdown (the data of which is from the vertical pulse, gate-boundary between the fragments Therefore, the marker in (fragment B duplicates marker 4 of fragment A. When you move the marker in fragment A, it will move from the marker of fragment B.

From the generator 14, a generator of 7 switching pulses is started, which can be performed on a trigger. The generator 7 switches the key 5 to one of the analyzers 12 parameters during a row. Parameter analyzers are calculated for measuring a number of parameters: area, density dimensions, etc. For example, if it is necessary to calculate the area difference At a certain level of optical density within a certain portion of fragments 2, the analyzer must contain a level discriminator and an area meter. To perform measurements using a digital method, the analyzers receive pulses from generator 3. A number of pulses, proportional to the area, is fed to the computing unit 13. If the area difference is calculated, then unit 13 can be made in the form of a reversible counter, the output of which immediately reads the required difference.

Introduction of new nodes - a block for selection of the boundaries of image fragments and a generator of switching pulses, as well as new constructive connections

allows you to significantly simplify the device.

Claims (2)

1. A device for reading a graphic information containing a television sensor connected to an indicator and to a discrete raster generator, the Bi ixott of which is connected to a counter and to one input of the parameter analyzers, the other inputs of which are connected to the key and to the marker generator, and the outputs are connected to a computing unit, a block of manual input of information connected to an indicator and a register, and a comparator whose inputs are connected to a counter and to the register, and the output is connected to a form marker signal marker, characterized in that, in order to simplify the device, it contains a block for selecting the boundaries of image fragments, connected to the output of a television sensor and to a counter, and reHqpaTqp a switch pulses, connected to the block of selection of the boundaries of 4 image patterns and to one key input, the other input of which is connected to a television sensor. 2. A device according to claim 1, characterized in that the block for selecting the boundaries of image fragments with a soko-kit delay element, the input of which is the input of the block and the output connected to the pulse generator gates, the output of which is the output of the block. Sources of information taken into account in the examination 1. USSR author's certificate for application no. 2576334 / 18-24, cl. G About K 11 / GS, 1977. 2. Japanese Patent No. 52-17976, cl. 97/7 89, published. 1977 (phototype) . f