SU942071A1 - Image recognition device - Google Patents

Description

. (54) DEVICE FOR RECOGNITION OF IMAGES

 - , one

Isobrededa relates to technical cybernetics, in particular, to devices for pattern recognition, and can be used in identification and diagnostic systems.

The known device for recognition of samples contains a threshold block, the inputs of which are connected to the adders, and the outputs are connected to the output of the device, divide the voltage connected to the Q-channel of the device, and the first group of function-J. National converters, the inputs of which are connected to the appropriate voltage dividers, and the outputs are connected to the INCLUDE of the second group of function-15 converters, the outputs of which are connected to the appropriate totalizer l The disadvantage of this device is

in its constructive complexity.

It is also known a device comprising first functional converters connected to the respective voltage dividers, a control unit.

connected to the back inputs of the first and second funcional converters, the other inputs of the couples are connected to multipliers, the integrator connected with the signal conditioners, and the threshold block t.

Its disadvantage lies in the lack of high reliability of recognition.

The purpose of the invention is to improve the reliability of recognition.

The goal is achieved by a known device comprising a group voltage dividers, the inputs of which 5 are connected to the device inputs, and the outputs are connected to the corresponding function converters of the group, a threshold unit whose outputs are device outputs, a voltage divider connected to the function converter, signal conditioners and an integrator; a generator of functional voltages has been entered, the input of which is the input of the device, and the outputs are connected to

in accordance with 4) the functional converters, to the signal conditioner to the threshold unit, a group of integrators connected to the corresponding

functional converters of the group and with a voltage divider, the integrator inputs are connected to the 4th converter and to the second driver, and the output is connected to the threshold unit.

The drawing shows a block diagram of ycipoftcTBa.

It includes a generator of functional voltage 1, a group of functional converters 2, a group of dividers 3 15 voltage, the first driver 4 signals, the group of integrators 5, the divider 6 voltage, functional distuser 7, the second driver 8 signal SF, integrator 9 and threshold block 10, go

The device works in a bright way.

Data on the recognition of an object as a signal with a duration T is fed to the power inputs of the dividers 3, each of which has 25 pre-exposed basic functions of orthogonal decomposition of this signal. The outputs of the voltage dividers 3 are connected with the control inputs of the functional converters 2, therefore when the input of the analyzed signal is applied to the control (functional inputs of the functional 1Feasers 2), the voltage is proportional to the product of the basis functions to the analyzed signal. At the same time, at the initial moment of time, the shaper of 4 signals generates a signal with a duration. + T of the integration resolution for controlled integrators 5, the outputs of which in Q for T accumulate the values of prints and the latter enter the input of the delta 6. Since the pre-calculated Fisher discriminate, from the output, 5 ({t of the cyzal converter 7 will be the product of the discriminant vector by the feature vector.

After issuing at the time T the second shaper 8 of the integration resolution signal begins accumulating the signal

a controlled integrator 9. Unit Yu, when a signal from the generator I is received from its input to its readable input. The output value of the integrator 9 gives out. The signal on one of the fiByx outputs, that. equivalently; classify recognizable -. destsvssa to one of two classes. If the number of classes is more than two, respectively, the number of functional converters 7 and threshold blocks must be increased ..

The introduction of new nodes and blocks allowed this to significantly increase the reliability of the recognition, navavol.

Claims (2)

1. Author's certificate of the USSR N 625219, cl. Q About K 9/00, 1976. 2. US Patent No. 3918049, cl. 340-146,3, pub. 1975 (prototype).