KR100778318B1 - Stereo camera system for moving lens horizontally - Google Patents

Abstract

The present invention relates to a stereo three-dimensional camera system that is faithful to the human visual function, and includes a camera module including two image sensors 11 and 12, and an image to each of the image sensors 11 and 12. An autofocus lens module for forming a lens, a left position detection sensor 71 for confirming motor position information of the left autofocus lens 21, and a right position detection sensor for confirming motor position information of the right autofocus lens 22 The motor 30 to adjust the viewing angle by adjusting the separation distance between the 72 and the left and right autofocus lenses 21 and 22, and the motor 30 in response to the motor driving signal of the controller 50 to be described later. Motor position information and a right autofocus lens of the left autofocus lens 21 which are input from the motor driver 40 for controlling the driving state of the motor, and the left position detection sensor 71 and the right position detection sensor 72. Left auto focus using motor position information A controller 50 which calculates distance information between the lens 21 and the right autofocus lens 22 and controls the motor driver 40, and synthesizes left and right image inputs from the camera module into one stereoscopic image. It is characterized by consisting of an image synthesizer 60.

Stereo Stereo Camera, Human Vision, Horizontal Axis, Auto Focus, View Angle Adjustment

Description

Stereo camera system for moving lens horizontally {Stereo camera system for moving lens horizontally}

1 is a block diagram for explaining the configuration of a horizontal stereoscopic stereoscopic camera system in consideration of the human visual structure according to the present invention;

FIG. 2 is a diagram for describing a signal processing relationship between a controller and an image synthesizer applied to FIG. 1.

*** Explanation of symbols on main parts of drawing ***

11: Left image sensor

12: Right image sensor

21: Left auto focus lens

22: Right auto focus lens

30: motor

40: motor drive unit

50: control unit

60: image synthesis unit

70: left position detection sensor

71: right position detection sensor

The present invention relates to a binocular stereoscopic camera system of the lens horizontal movement method.

More specifically, the present invention relates to a lens horizontally moving stereo stereoscopic camera system for designing a stereoscopic stereoscopic camera to be similar to a human visual structure.

In other words, the present invention applies a lens horizontal shifting method to a stereoscopic camera that horizontally shifts only the lens corresponding to the lens, while fixing the sensor corresponding to the retina, as in the human eye, in order to minimize the distortion of the acquired image. The present invention relates to a lens horizontally moving stereo stereo camera system for automatically adjusting the viewing angle by converting displacement information extracted from a position detection sensor capable of confirming lens position information of a lens into distance information.

Conventional horizontal moving stereoscopic cameras use the method of fixing the lens and moving the sensor due to mechanical limitations, but due to this, the input image of the sensor is severely shaken or distorted. There is a problem in that a natural three-dimensional image cannot be obtained because the distance between the sensors varies depending on the conditions.

In addition, there is a problem that it is almost impossible to precisely match the alignment of the left and right images.

In addition, the conventional stereo three-dimensional camera has been solved mechanically for this purpose after deriving the equation for the linkage between the focus and the viewing angle, but the recent camera module is the most trend to use the auto focus lens, such auto focus lens In case of using, there is a problem that the linkage of focus and gaze using the existing mechanical method becomes useless.

The present invention has been made to solve the above problems of the prior art, an object of the present invention is a stereoscopic camera system is a structure similar to the human visual structure to minimize the movement of the retina, the left and right two sensors are completely fixed The present invention provides a lens horizontal shifting binocular stereoscopic camera system in which a left and right lens is moved.

In addition, another object of the present invention is to design a separate control board to read the distance information from the auto focus lens to read the LUT (Look Up Table) based on this, by controlling the motor using the LUT, An object of the present invention is to provide a binocular stereoscopic camera system with a horizontal lens shifting method for adjusting focus.

In addition, another object of the present invention is to convert the displacement information extracted from the position detection sensor that can determine the position information of the lens of the autofocus lens into the distance information to adjust the viewing angle automatically stereoscopic stereoscopic camera In providing a system.

One embodiment of the present invention for achieving the above object is a stereoscopic camera system, a left and right camera module including two image sensors 11, 12, and each of the left and right image sensors ( 11) an autofocus lens module including left and right autofocus lenses 21 and 22 for forming an image on the 12 and a left position detection sensor for checking motor position information of the left autofocus lens 21; 71), a motor for adjusting the viewing angle by adjusting the separation distance between the right position detection sensor 72 for checking motor position information of the right auto focus lens 22 and the left and right lenses 21 and 22; 30, the motor driver 40 for controlling the driving state of the motor 30 in response to the motor drive signal of the controller 50, the left position detection sensor 71 and the right position detection sensor 72 Motor position information of the left autofocus lens 21 and the right autosecond input from The controller 50 which calculates distance information between the left and right autofocus lenses 21 and 22 using the motor position information of the lens 22 and controls the motor driver 40 using the calculated distance information. And an image synthesizing unit 60 for synthesizing the left and right image inputs from the camera module into one stereoscopic image.

The controller 50 preferably has an internal memory that stores the LUT 51 made of distance information data.

The image synthesizer 60 combines the left and right image sensors 11 and 12 to combine the left and right image inputs to be output as a stereoscopic image, and the image synthesizer 61. The output format converter 62 converts the three-dimensional image synthesized by the output format into an output format and outputs the left and right autofocus lenses 21 by using signals input from the left and right image sensors 11 and 12. It is preferable that it consists of the left and right focus detection parts 63 and 64 which detect the focus of (22).

Hereinafter, with reference to the accompanying drawings, a lens horizontal shifting binocular stereoscopic camera system will be described.

Lens binocular binocular stereoscopic camera system includes a camera module including two image sensors 11 and 12, left and right, as shown in Figure 1 attached to each image sensor (11, 12) An autofocus lens module including left and right autofocus lenses 21 and 22 to form a sign, a left position detection sensor 71 to check motor position information of the left autofocus lens 21, and the right auto A right position detection sensor 72 for checking motor position information of the focus lens 22, a motor 30 for adjusting the viewing angle by adjusting a separation distance between the left and right auto focus lenses 21 and 22, The left side input from the motor driver 40 for controlling the driving state of the motor 30 in response to the motor drive signal of the controller 50 to be described later, and from the left position detection sensor 71 and the right position detection sensor 72. Motor position information of the auto focus lens 21 and the model of the right auto focus lens 22 A controller 50 for calculating distance information between the left and right autofocus lenses 21 and 22 by using position information, and controlling the motor driver 40 using the calculated distance information, and the camera module And an image synthesizer 60 for synthesizing the left and right image input from the image into one stereoscopic image.

The left and right autofocus lenses 21 and 22 include a focus control motor, and are driven by the motor driving unit 40 to focus the left and right autofocus lenses 21 and 22. Will be adjusted.

In addition, the controller 50 includes a microprocessor, and the microprocessor has a LUT 51 made of distance information data and an internal memory storing a control program. The information stored in the LUT 51 may be modified or changed by the user, and the controller 50 services the user so that the user may modify or change the information of the LUT 51.

The controller 50 generates displacement information by using the motor position information detected by the left and right position detection sensors 71 and 72, and calculates a distance according to the generated displacement information from the LUT 51. Extract it through to generate the actual distance information.

The image synthesizer 60 combines the left and right image sensors 11 and 12 to combine the left and right image inputs to be output as a stereoscopic image, and the image synthesizer 61. The output format converter 62 converts the three-dimensional image synthesized by the output format into an output format and outputs the left and right autofocus lenses 21 by using signals input from the left and right image sensors 11 and 12. It consists of the left and right focus detection parts 63 and 64 which detect the focus of 22. As shown in FIG.

The operation of the lens horizontal shift binocular stereoscopic camera system configured as described above is as follows.

First, the left position detection sensor 71 and the right position detection sensor 72 detect motor position information of the left autofocus lens 21 and the right autofocus lens 22, and output the motor position information to the controller 50.

Then, the controller 50 generates displacement information on the left autofocus lens 21 and the right autofocus lens 22 using the detected motor position information, and calculates the distance according to the generated displacement information from the microprocessor. Through the LUT 51 stored in the internal memory of the extracted to generate the actual distance information.

The controller 50 compares the calculated actual distance information with the separation distance between the current left and right autofocus lenses 21 and 22, and outputs a motor driving signal to the motor driver 40 according to the comparison result. do.

Then, the motor driver 40 supplies a driving current to the motor 30 in response to the motor driving signal, and the motor 30 is driven to adjust the separation distance between the left and right autofocus lenses 21 and 22. . In this case, the controller 50 outputs a control signal for adjusting the focus of the left and right autofocus lenses 21 and 22 to the motor driver 40, and the motor driver 40 is not shown in the drawings. The motors provided in the right autofocus lenses 21 and 22 are driven to adjust the focus of the left and right autofocus lenses 21 and 22.

As described above, when the separation distance of the left and right autofocus lenses 21 and 22 is adjusted, the left and right autofocus lenses 21 and 22 transmit an image to the left and right image sensors 11 and 12. The image sensors 11 and 12 output the combined left and right images to the image synthesizer 60.

Then, the image synthesis unit 60 generates a stereoscopic image by synthesizing the input left and right images, and outputs the generated stereoscopic image. That is, the image synthesizer 60 includes an image synthesizer 61, an output format converter 62, and left and right focus detectors 63 and 64, and the image synthesizer 61 includes the left and right sides. The stereoscopic image is formed from the left and right image inputs input from the image sensors 11 and 12, and the output format converter 62 converts the formed stereoscopic image according to the output format and outputs it on the screen.

The left and right focus detectors 63 and 64 detect the focus of the left and right auto focus lenses 21 and 22 by using signals input from the left and right image sensors 11 and 12. The controller 50 is output to the controller 50, and the controller 50 is stored in the LUT 51 and the focus information of the left and right autofocus lenses 21 and 22 input from the left and right detectors 63 and 64. By comparing the focus information, it is determined whether the focus of the left and right autofocus lenses 21 and 22 is correct, and if it is not correct, the motor driver 40 is controlled to control the left and right autofocus as described above. The motors provided in the lenses 21 and 22 are driven to be adjusted.

On the other hand, the control unit 50 provides a menu item so that the user can modify and change the information stored in the LUT provided inside the control unit 50, and the user selects the menu item to the desired information at the desired time point LUT To update the information on the

According to the present invention having the configuration and operation as described above and the preferred embodiment, the horizontal movement axis method designed to adjust the viewing angle based on the visual structure of the person minimizes the distortion of the obtained stereoscopic image, This effectively removes the inconsistency between the images.

In addition, the present invention has the effect that the mechanical considerations are no longer necessary as in the prior art by designing a separate control board in order to use the autofocus lens that is popular in the focus and the viewing angle.

Claims (4)

In stereo stereo camera system, A camera module including two image sensors 11 and 12, An autofocus lens module including a left autofocus lens 21 and a right autofocus lens 22 for forming an image on each of the image sensors 11 and 12; A left position detection sensor 71 for checking motor position information of the left autofocus lens 21; A right position detection sensor 72 for checking motor position information of the right auto focus lens 22; A motor 30 for adjusting a viewing angle by adjusting a separation distance between the left and right autofocus lenses 21 and 22, A motor driver 40 for controlling a driving state of the motor 30 in response to a motor driving signal input from the outside; The left autofocus lens using the motor position information of the left autofocus lens 21 and the motor position information of the right autofocus lens 22 input from the left position detection sensor 71 and the right position detection sensor 72. A controller 50 for calculating distance information between the 21 and the right autofocus lens 22 and controlling the motor driver 40 using the calculated distance information; Image synthesizing unit 60 for synthesizing left and right image inputs from the camera module into one stereoscopic image The lens is characterized in that the horizontal movement stereoscopic stereoscopic camera system. The method of claim 1, wherein the controller 50, Lens horizontal movement stereo stereo camera system characterized in that it has an internal memory for storing the LUT (51) consisting of the distance information data. The method of claim 2, wherein the controller 50, Lens horizontal movement stereoscopic stereoscopic camera system characterized in that the user can modify, change the information stored in the LUT (51). The method of claim 1, wherein the image synthesis unit 60, An image synthesizer 61 for synthesizing the left and right image inputs input from the left and right image sensors 11 and 12 so as to be output as a stereoscopic image, and an output format for synthesizing the stereoscopic image synthesized by the image synthesizer 61. The left and right auto focus lenses 21 and 22 to detect the focus of the left and right auto focus lenses 21 and 22 by using an output format conversion unit 62 which is converted to the output unit and outputs the same. , The right focus detection unit (63) (64), characterized in that the horizontal lens stereoscopic stereoscopic camera system.

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