Tobacco image data processor

Abstract

The tobacco image data processor receives an image signal output by an image sensor, the image signal is subjected to bidirectional amplitude limiting and amplification and is added to a transformer T1, a reference image signal is added to the transformer T1 through a synchronous switch K1, and a secondary harmonic network of the transformer T1 carries out frequency discrimination and detection. The light intensity is transmitted to the image processing chip through the bidirectional diodes SD1 and SD2, and is fed back to the potentiometer when slight frequency distortion occurs, the time delay is adjusted to trigger the synchronous switch, the light intensity of the shooting environment is detected through the photoresistor, threshold comparison is performed through the window comparator, and compared logic effective level is transmitted to the image processing chip when the light intensity is too weak or too strong. A logic level triggers a plurality of photoresistors in layout, the values of the photoresistors are sorted and compared to track a light source, the maximum value is transmitted to an image processing chip, and the image processing chip in the later period timely adopts re-shooting, angle adjustment during shooting and exposure to ensure the quality of an image according to the maximum value, so that the complicated processing process in the later period can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to tobacco image shooting, processing technical field especially is tobacco image data processor. BACKGROUND

[0002] In each period of tobacco production, it is usually needed to collect the images of tobacco real objects and samples, to guide tobacco growth, grading and impurity removal according to the images, and the quality of the images is the key, the image collection usually adopts a camera, the principle of the camera shooting image is that the light of an object is gathered through a lens, is received by an image sensor and is converted into an electric signal, the electric signal is transmitted to an image processing chip, the electric signal is converted into a digital image signal through the processing of the image processing chip, and is output to a digital signal processor for further processing, and finally the standard signal can be sent to a video recorder for recording or a monitor for display.

[0003] The light intensity of the outside world, the focusing of the lens, the performance of the image sensor device and the like can all cause image distortion, the prior art usually takes measures such as color correction, image enhancement, noise reduction, EIS anti-shake and the like of the image processing chip in the later period, adjusts exposure to improve the quality of the image, but the processing process is complex, therefore, it is needed to set an image data processor to pre-detect image distortion, detect light intensity, and timely take measures such as re-shooting and adjusting the state during shooting to ensure the quality of the image. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model aims to provide a tobacco image data processor to pre-detect image distortion, detect light intensity and track light sources, transmit to an image processing chip, and enable the image processing chip to timely take measures such as re-shooting and adjusting the state during shooting.

[0005] The technical solution thereof is to connect the image signal shot by an image sensor and the ambient light signal detected by a photosensitive sensor to an image processing chip, and display and transmit the image post-processing of the image processing chip, and configure an image distortion detection circuit between the image sensor and the image processing chip.

[0006] The image distortion detection circuit includes a diode D1, the positive electrode of diode D1 is connected to the image signal, the negative electrode of diode D1 is connected to one end of resistor R1, one end of resistor R2, the negative electrode of diode D2 respectively, the other end of resistor R1 is connected to a power supply +1V, the positive electrode of diode D2 is connected to one end of resistor R3, one end of resistor R4, one end of capacitor C1, one end of triode Q1 respectively, the other end of resistor R3 is connected to a power supply -1V, the emitter of triode Q1 is connected to ground through resistor R5, the collector of triode Q1 is connected to one end of resistor R6, one end of resistor R7, the base of triode Q2, pin 1 of transformer T1 respectively, the emitter of triode Q2, the other end of resistor R6 is connected to a power supply +5V, the collector of triode Q2 is connected to one end of resistor R8, pin 1 of non gate F1 respectively, pin 2 of transformer T1 is connected to ground, pin 3 of transformer T1 is connected to one end of capacitor C2, pin 4 of transformer T1 is connected to one end of switch K1, the other end of switch K1 and the other end of capacitor C2 are connected to the reference image signal, pin 2 of non gate F1 is connected to the right end of potentiometer RP1, the left end of potentiometer RP1 is connected to pin 1 of non gate F2, one end of capacitor C3 respectively, pin 2 of non gate F2 is connected to the trigger end of switch K1, pin 5 of transformer T1 is connected to one end of resistor R10, pin 6 of transformer T1 is connected to ground, the other end of resistor R10 is connected to one end of ground inductor L1, one end of capacitor C4, the positive electrode of diode D5, the negative electrode of diode D6, one end of bidirectional diode SD2 respectively, the right end of bidirectional diode SD2 is connected to the image processing chip, the other end of capacitor C4 is connected to the positive electrode of varactor DC1, the negative electrode of varactor DC1, the positive electrode of diode D6, the positive electrode of diode D5 are connected to ground, the other end of resistor R9 is connected to the adjustable end of potentiometer RP1, the positive electrode of electrolytic capacitor E1 is connected to the negative electrode of diode D4, the positive electrode of diode D3, the positive electrode of diode D4 is connected to ground, the negative electrode of diode D3 is connected to the negative electrode of electrolytic capacitor E2, one end of bidirectional diode SD1 respectively, the right end of bidirectional diode SD1 is connected to the image processing chip, the positive electrode of electrolytic capacitor E2 is connected to ground.

[0007] The utility model discloses receive the image signal that image sensor output, through bidirectional limiting, amplify, add to the pin 1 of transformer T1, reference image signal is through synchronous switch K1 and is added to the pin 3 and pin 4 of transformer T1, wherein synchronous switch is by the image signal after amplification and is detected synchronous signal through triode Q2, and synchronous signal is through buffer, potentiometer, capacitor time delay trigger, and the pin 5 of transformer T1 is through frequency discrimination, detection, detects the frequency distortion, amplitude distortion, and when serious, is transmitted to image processing chip through bidirectional diode SD1 and SD2 respectively, and when slight frequency distortion, and feedback to potentiometer, adjust time delay trigger synchronous switch, through photosensitive resistance detection shooting ambient light intensity, through window comparator threshold comparison, when too weak or too strong, the logic effective level of comparison is transmitted to image processing chip, and the logic level triggers the layout of multiple photosensitive resistance, and multiple photosensitive resistance value order comparison carries out light source tracking, and the maximum is transmitted to image processing chip, and the image processing chip in later period is accordingly in time and takes the rephotograph, adjusts the state (the angle of shooting, exposure) of shooting to ensure the quality of image, reduces the complicated processing process in later period. BRIEF DESCRIPTION OF DRAWINGS

[0008] Fig. 1 It is image distortion detection circuit schematic diagram for the utility model.

[0009] Fig. 2 It is module diagram for the utility model. DETAILED DESCRIPTION

[0010] For the foregoing and other technical content, characteristics and effects of the utility model, in the following with reference to the attached Figs. 1-2 The detailed description of the embodiment will be clearly presented. The structure content mentioned in the following embodiment is with reference to the drawings of the specification.

[0011] The various exemplary embodiments of the utility model will be described below with reference to the drawings.

[0012] Image data processor, including image sensor, photosensitive sensor, image processing chip, the image signal of image sensor shooting, environmental light signal detected by photosensitive sensor are connected to image processing chip, and image processing chip carries out display, transmission to image post-processing, and image distortion detection circuit is configured between image sensor and image processing chip;

[0013] The image distortion detection circuit receives image signal output by image sensor, and is bi-directionally limited by diodes D1 and D2 and resistors R1-R4, amplified by transistor Q1, one way added to pin 1 of transformer T1, the other way added to pin 3 and pin 4 of transformer T1 through transistor Q2 detecting synchronous signal, reference image signal provided by image processing chip or externally analog generated, added to pin 3 and pin 4 of transformer T1 through synchronous switch K1, wherein the synchronous switch is triggered by detecting synchronous signal, the synchronous signal is buffered, potentiometered and time-delayed by capacitor, so that two ways of image signal are synchronized into transformer T1, pin 5 and pin 6 of transformer T1, inductive network composed of inductor L1 and capacitor C4 and varactor diode DC1 frequency discrimination, detected frequency and amplitude distortion, when serious (deviating from reference image signal by 40%), transmitted to image processing chip through bi-directional diodes SD1 and SD2 respectively, when slight frequency distortion (deviating from reference image signal by 6% or less), fed back to potentiometer, adjusting time-delayed synchronous switch, further verifying frequency and amplitude distortion, including diode D1, positive pole of diode D1 connected to image signal, negative pole of diode D1 connected to one end of resistor R1, one end of resistor R2 and negative pole of diode D2, other end of resistor R1 connected to power supply +1V, positive pole of diode D2 connected to one end of resistor R3, one end of resistor R4 and one end of capacitor C1, one end of transistor Q1, other end of resistor R3 connected to power supply -1V, emitter of transistor Q1 connected to ground through resistor R5, collector of transistor Q1 connected to one end of resistor R6, one end of resistor R7, base of transistor Q2 and pin 1 of transformer T1, emitter of transistor Q2 and other end of resistor R6 connected to power supply +5V, collector of transistor Q2 connected to one end of resistor R8 and pin 1 of non-gate F1, pin 2 of transformer T1 connected to ground, pin 3 of transformer T1 connected to one end of capacitor C2, pin 4 of transformer T1 connected to one end of switch K1, other end of switch K1 and other end of capacitor C2 connected to reference image signal, pin 2 of non-gate F1 connected to right end of potentiometer RP1, left end of potentiometer RP1 connected to pin 1 of non-gate F2 and one end of capacitor C3, pin 2 of non-gate F2 connected to trigger end of switch K1, pin 5 of transformer T1 connected to one end of resistor R10, pin 6 of transformer T1 connected to ground, other end of resistor R10 connected to one end of inductor L1, one end of capacitor C4, positive pole of diode D5, negative pole of diode D6 and one end of bi-directional diode SD2, right end of bi-directional diode SD2 connected to image processing chip, other end of capacitor C4 connected to positive pole of varactor diode DC1, negative pole of varactor diode DC1, positive pole of diode D6 and positive pole of diode D5 connected to ground, other end of resistor R9 connected to adjustable end of potentiometer RP1, positive pole of electrolytic capacitor E1 connected to negative pole of diode D4 and positive pole of diode D3, positive pole of diode D4 connected to ground,The negative pole of diode D3 is connected with the negative pole of electrolytic capacitor E2 and one end of bidirectional diode SD1 respectively, the right end of bidirectional diode SD1 is connected with the image processing chip, and the positive pole of electrolytic capacitor E2 is connected with the ground.

[0014] On the basis of the above scheme, the light intensity of the shooting environment is detected by the photoresistor, and the threshold comparison is performed through the window comparator, when the light is too weak or too strong, the logic effective level of the comparison is transmitted to the image processing chip, the logic level triggers multiple photoresistors in the layout, the multiple photoresistor values are sorted and compared (which can be obtained by analog comparator comparison) to perform light source tracking, and the maximum value is transmitted to the image processing chip, and the image processing chip timely takes the re-shooting and adjusts the state (the angle of shooting, exposure) during shooting to ensure the quality of the image, which is the prior art and will not be described in detail here, so as to reduce the complex processing process in the later stage.

[0015] The above is a further detailed description of the utility model made in combination with the specific implementation, and the specific implementation of the utility model cannot be limited to this; for the skilled in the art and related technical field, the expansion, operation method and data replacement made on the basis of the technical scheme idea of the utility model should fall within the protection scope of the utility model.

Claims

1. A tobacco image data processor, comprising an image sensor, a photosensor, and an image processing chip, wherein the image signal captured by the image sensor and the ambient light signal detected by the photosensor are connected to the image processing chip, and the image processing chip performs post-processing of the image for display and transmission, characterized in that, An image distortion detection circuit is configured between the image sensor and the image processing chip; The image distortion detection circuit includes diode D1. The anode of diode D1 is connected to the image signal. The cathode of diode D1 is connected to one end of resistor R1, one end of grounding resistor R2, and the cathode of diode D2. The other end of resistor R1 is connected to a +1V power supply. The anode of diode D2 is connected to one end of resistor R3, one end of grounding resistor R4, one portion of grounding capacitor C1, and one end of transistor Q1. The other end of resistor R3 is connected to a -1V power supply. The emitter of transistor Q1 is connected to ground through resistor R5. The collector of transistor Q1... Connect one end of resistor R6, one end of grounding resistor R7, the base of transistor Q2, and pin 1 of transformer T1 respectively. Connect the emitter of transistor Q2 and the other end of resistor R6 to the +5V power supply. Connect the collector of transistor Q2 to one end of grounding resistor R8 and pin 1 of NOT gate F1 respectively. Connect pin 2 of transformer T1 to ground. Connect pin 3 of transformer T1 to one end of capacitor C2. Connect pin 4 of transformer T1 to one end of switch K1. Connect the other end of switch K1 and the other end of capacitor C2 to the reference image signal. The NOT gate F1... Pin 2 is connected to the right end of potentiometer RP1. The left end of potentiometer RP1 is connected to pin 1 of NOT gate F2 and one end of ground capacitor C3. Pin 2 of NOT gate F2 is connected to the trigger terminal of switch K1. Pin 5 of transformer T1 is connected to one end of resistor R10. Pin 6 of transformer T1 is connected to ground. The other end of resistor R10 is connected to one end of ground inductor L1, one end of capacitor C4, the anode of diode D5, the cathode of diode D6, and one end of bidirectional diode SD2. The right end of bidirectional diode SD2 is connected to the image processing chip. The other end of C4 is connected to the positive terminal of varactor diode DC1. The negative terminal of varactor diode DC1, the positive terminal of diode D6, and the positive terminal of diode D5 are connected to ground. The other end of resistor R9 is connected to the adjustable terminal of potentiometer RP1. The positive terminal of electrolytic capacitor E1 is connected to the negative terminal of diode D4 and the positive terminal of diode D3. The positive terminal of diode D4 is connected to ground. The negative terminal of diode D3 is connected to the negative terminal of electrolytic capacitor E2 and one end of bidirectional diode SD1. The right end of bidirectional diode SD1 is connected to the image processing chip. The positive terminal of electrolytic capacitor E2 is connected to ground.

2. The tobacco image data processor as described in claim 1, characterized in that, The photosensitive sensor is a photoresistor. After threshold comparison by a window comparator, if the value is too weak or too strong, the valid logic level of the comparison is sent to the image processing chip. The logic level triggers multiple photoresistors in the layout. The values ​​of the multiple photoresistors are sorted and compared to track the light source. The maximum value is sent to the image processing chip.

3. The tobacco image data processor as described in claim 1, characterized in that, The reference image signal is provided by an image processing chip.

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