The device for selecting features for object recognition

 

The invention relates to the field of computer engineering and can be used for automatic image analysis. The technical result is to increase functionality. The device comprises a photoelectric Converter, the shapers of positional signals, switches, circuit sampling a video signal, a temporary unit, a memory, a logic circuit And a counter. 1 Il.

The invention relates to Metrology, automation and technical Cybernetics and can be used in the development of systems for the automatic analysis and classification of images.

A device for pre-processing subject identification image containing a photoelectric transducer for scanning the original image signal on the second output, and the sequence in time of the electrical signals on the first output, which are connected in series connected circuit for sampling a video signal, the logic circuitry on the first input and the set of counters; with the second output of the PV inverter connected to the input circuit for the formation of positional signals, Opredelenie signals as address, the output of which is connected with the second input of the logic circuit, and the output of the circuit for forming the positional signal is connected to one of inputs of the set of counters [1].

The disadvantage of this device is the limited number of realized transactions and lack of accuracy when processing images.

The closest in technical essence to the present invention is a device for selecting features for recognition of objects containing the photoelectric Converter, the first and second shapers positional signals, first, second and third switches, circuit sampling a video signal, a temporary unit, a memory, a logic circuit And a counter, and the output of the second shaper positional signals connected to the second input of the second switch, the first input connected to the output of the first driver positional signals, the third input from the first temporary output devices and the input of the first switch, and the output is connected to a second input of the third switch, first input connected to the output of the photoelectric transducer matrix type, the output of the third switch is connected to the input circuit for sampling a video signal, the first input of the pam is the log - with the second temporary output device, the fourth input to the third output of the temporary device and the first counter input and output memory connected to the first input of the logical circuit And the output of which is connected to a second input of the counter, the fourth temporary output device connected with the second input of the logic circuit And the output of the counter is the output of the device [2].

The disadvantage of this device is the low probability of recognition of images due to the small number of characteristics that allow you to select this device.

The task of the invention is the expansion of opportunities for recognition of the image, increasing the likelihood of detection by identifying additional characteristic of the image - the degree of non-uniformity of the brightness of a surface of an object to the local contrast.

This object is achieved in that the device for selecting features for recognition of objects containing the photoelectric Converter, the first and second shapers positional signals, first, second and third switches, circuit sampling a video signal, a temporary unit, a memory, a logic circuit And a counter, and the output of the second driver, the first driver position signals, the third input to the first temporary output device and the input of the first switch, and the output is connected to a second input of the third switch, the first input connected to the output of the photoelectric transducer matrix type, the output of the third switch is connected to the input circuit for sampling a video signal, the first input memory connected to the output of the first switch, the third input with the second output of the temporary device, the fourth input to the third output of the temporary device and the first counter input and output memory connected to the first input of the logical circuit And the output of which is connected to a second input of the counter, the fourth temporary output device connected with the second input of the logic circuit And, additionally introduced the third driver positional signals and the fourth switch, and the output of the third driver positional signals connected to a second input of the fourth switch, the first input connected to the output circuit for sampling a video signal, the third input to the fourth output of the temporary device and the second input of the logic circuit, And the output from the second input memory.

The positive effect is achieved by counting the number N of signals from resumerequest gradation level of brightness (color on a multicolor image on the surface of the selected object, missing from the surrounding background, and characterizes the degree of non-uniformity of the brightness of a surface of an object to the local contrast.

This solution is illustrated by a drawing, which shows a block diagram of the proposed device.

The proposed device operates as follows.

Photoelectric transducer matrix type (6) receives optical signals from a field of view containing the desired object, converts the optical signals into electrical signals and dividing the image scene into discrete elements. Produce a consistent view of the signals from the elements of the matrix PV inverter electronic window as a background border, within which the center is the electronic box of the object image (Reis), and the dimensions of the image window object commensurate with the size of the image object.

When the power supply signal from the first output of the temporary device 10 is fed to the input 3 of switch 2 (4) and sets it in a position where the second input of switch 3 (7) through the second input and the output switch 2 receives address the Reis defined in the second shaper positional signals Reis 2 in accordance with the laws of the tee 11 receives the signal "1".

On the second temporary output device, a signal is generated record memory coming to the 3rd input of the memory, allowing the recording of information. On the third temporary output device occurs impulse that sets the device in the initial state: reset (write "0" in all the elements of the 4-th input memory and the first input of the counter 13. The signal "0" from the fourth output of the temporary device is supplied to the second input of logic circuit (12), which is schematic And block the counter, and to the third input of switch 4 (9), sets it in the condition in which the second input of the memory block receives signals from the output circuit for sampling a video signal 8.

The matrix PV inverter is projected analyzed image. The addresses received from the second shaper positional signals through the switch 2 to the second input of the switch 3, the switch 3 connects the elements of the matrix PV inverter, owned by Reis, wiring diagram, sampling of video signals 8, which converts the analog signal from the photoelectric Converter into a digital code. Memory is an entry level "1", acting at its first input owls through the switch 4. The survey items the Reis in memory at addresses that are equal to the amplitudes of the signals from the matrix elements of the photoelectric Converter corresponding to the Reis recorded "1", i.e., through the values of memory addresses defined values of the amplitudes of the signals from the Reis.

At the end of the survey items, Reis on the first temporary output device receives the impulse of the survey items background border, which is supplied to the third input of the switch 2 and switch its status in the connection mode of the first shaper positional signals background border (1) with the second input of the switch 3 and switch 1 is in state "0".

From the discrete elements of the image window object exclude elements with the values of signals that are present among signals with discrete portions of the frame background. This operation emit signals from the image of the object with alternating contrast relative to the surrounding background and dimensions corresponding to the dimensions of the desired object.

To do this, at the addresses supplied to the second input of the switch 3 of the first shaper positional signals through the switch 2, switch 3 connects to the wiring diagram, sampling of video signals, the matrix elements of the photoelectric Converter, a part of the framework of the background, which is current at the first input level "0" is written into memory. This changes the state of only those memory cells, in which at the previous stage (survey items the Reis) was recorded "1", i.e., from memory erased information at the addresses expressed by the amplitudes of the signals are the same for the Reis and the scope of the background.

At the end of the survey items background border in the memory written to "1" only for those addresses, the values of which are equal to the amplitudes of the signals from the elements of the Reis and absent among the amplitudes from elements of the background border. To determine the desired characteristic is the degree of non-uniformity of the brightness of a surface of an object with a local contrast - count the number of units stored in memory.

Simultaneously with the completion of the survey items background border on the 3rd input memory a signal read from the second temporary output device, on the 4th exit the temporary device is formed "1" is supplied to the second input of the logic circuit, And allows the counter account of a single incident pulses at its second input. The logical signal "1" from the 4th exit the temporary device is also supplied to the third input of the switch 4, which connects the output of the third driver positional signals 5 from wtorepeu bit scheme for the discretization of the video.

If the second input memory occurs impulse with amplitude equal to the address of the memory cell that stores "1", the output of memory, a positive pulse is supplied to the first input of the logic circuit And with its output to the second input of the counter, where counts of single pulses.

The counter can be performed, for example, on the chip CIE, logic AND CLA, switches - CCT, memory - CRU, scheme sampling analog-to-digital Converter C PV1, the photoelectric Converter can be performed, for example, on the CCD matrix [3], a temporary device as a 555 timer [4], and shapers of positional signals - similar to the prototype [2].

Thus, the use of the proposed device allows you to allocate additional characteristic of the object image is the degree of heterogeneity of the fury of the surface of an object with its local contrast, which increases the likelihood of recognition of the object.

The proposed device for the determination of features for image recognition of objects tested with great efficiency in the complex "Hermes", "Klawock-D".

Sources of information 1. A. C. Japan N 64-6508, CL G 06 F 15/64, 15/66, G 06 K 9/20, 9/36 - similar.

2. Patent RF N 2173880 from 20.09.2001 is audio and communication, 1986.

4. M. Tooley. Reference manual for digital electronics. M: Energoizdat, 1990, S. 36-40.

Claims

Device for determination of features for recognition of objects containing photoelectric transducer, the first and second shapers positional signals, first, second and third switches, circuit sampling a video signal, a temporary unit, a memory, a logic circuit And a counter, and the output of the second shaper positional signals connected to the second input of the second switch, the first input connected to the output of the first driver positional signals, the third input from the first temporary output device and the input of the first switch, and the output is connected to a second input of the third switch, the first input connected to the output of the photoelectric transducer matrix type the output of the third switch is connected to the input circuit for sampling a video signal, the first input memory connected to the output of the first switch, the third input with the second output of the temporary device, the fourth input to the third output of the temporary device and the first counter input and output memory connected to the first input of the logical circuit And the input of the logic circuit, And characterized in that it introduced the third driver positional signals and the fourth switch, and the output of the third driver positional signals connected to a second input of the fourth switch, the first input connected to the output circuit for sampling a video signal, the third input to the fourth output of the temporary device and the second input of the logic circuit, And the output from the second input memory.

 

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