CN108282599B - 3D display and endoscope auxiliary diagnosis system - Google Patents
3D display and endoscope auxiliary diagnosis system Download PDFInfo
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- CN108282599B CN108282599B CN201710004663.4A CN201710004663A CN108282599B CN 108282599 B CN108282599 B CN 108282599B CN 201710004663 A CN201710004663 A CN 201710004663A CN 108282599 B CN108282599 B CN 108282599B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/555—Constructional details for picking-up images in sites, inaccessible due to their dimensions or hazardous conditions, e.g. endoscopes or borescopes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N2013/0074—Stereoscopic image analysis
- H04N2013/0096—Synchronisation or controlling aspects
Abstract
The invention discloses a 3D display and an endoscope auxiliary diagnosis system, wherein the 3D display comprises: the video input interface comprises two SDI interfaces and one DVI interface; the video decoding module is used for decoding the original 3D video signal accessed by the video input interface into a TTL format for output; the 3D format conversion module is used for performing 3D format conversion on the decoded 3D video signals and uniformly converting the 3D video signals into video signals with a specific 3D format for output; the image processing module is used for carrying out image processing on each frame of image in the video information output by the 3D format conversion module; the 3D display panel is used for displaying the processed video information; and the control module is used for coordinating the work of each module. The display can directly receive SDI and DVI type 3D signals output by the endoscope, does not need an additional video signal conversion box, reduces the difficulty of integral realization and provides the reliability of the system.
Description
Technical Field
The invention relates to the field of 3D display, in particular to a 3D display and an endoscope auxiliary diagnosis system.
Background
Minimally invasive surgery is a procedure that is performed by a surgeon without causing significant trauma to the patient, primarily through endoscopy and various imaging techniques. During operation, a doctor places an endoscope (micro-camera) into an operation site in a human body, and connects a signal output by the endoscope to a medical display, and the doctor performs an operation by viewing the content on the display.
Because most of the existing medical displays can only display 2D images, the stereoscopic impression is poor, the spatial positioning is inaccurate when a doctor performs an operation, and the focus is not accurate enough when being cut off. Although the consumer 3D display can display 3D images, most of the video interfaces are HDMI or DP, and most of the video output interfaces of the endoscope are SDI or DVI, which cannot be satisfied. Nowadays, 3D imaging has become an increasingly important tool in operating rooms. It can actually replace traditional 2D imaging, providing surgeons with stereoscopic views of high resolution pictures taken by endoscopes and surgical microscopes. 3D improves depth perception and spatial localization and provides accurate and realistic visual experience. In this way, even complex surgical procedures can provide a more realistic visual experience.
Because the endoscope usually adopts SDI and DVI interfaces for long-line transmission in an operating room, and the two interfaces have no 3D standard file and can be realized by no universal 3D solution, a decoding and encoding module of a 3D signal is required to be added to realize the display of a 3D image, otherwise, only a 2D image can be displayed.
Referring to fig. 1, in the conventional 3D display, only the HDMI and DP ports can decode 3D images, and the 3D signal interface output by the endoscope is SDI and DVI, in order to use the conventional 3D display, a video signal conversion box (i.e., converting the 3D signal output by the endoscope via SDI or DVI into the 3D signal of the HDMI or DP interface) must be added, so that the 3D images can be normally displayed. Because the endoscopic surgery has higher requirements on image quality, the existing consumer display has inaccurate information seen by a doctor and cannot meet medical requirements because the color reduction is not real enough and the visual angle is not wide enough, and in addition, a video conversion box is additionally arranged, so that the fault risk is increased.
Disclosure of Invention
The present invention is directed to provide a 3D display and an endoscope-assisted diagnosis system, which address the above-mentioned drawbacks of the related art.
The technical scheme adopted by the invention for solving the technical problems is as follows: constructing a 3D display comprising:
the video input interface comprises two SDI interfaces and one DVI interface;
the video decoding module is used for decoding the original 3D video signal accessed by the video input interface into a TTL format for output;
the 3D format conversion module is used for performing 3D format conversion on the decoded 3D video signals and uniformly converting the 3D video signals into video signals with a specific 3D format for output;
the image processing module is used for carrying out image processing on each frame of image in the video information output by the 3D format conversion module;
the 3D display panel is used for displaying the processed video information;
and the control module is used for coordinating the work of each module.
In the 3D display of the present invention, the specific 3D format is a line interleaved format, and the original 3D video signal is two SDI signals or one SDI signal/DVI signal in a left-right format, a line interleaved format, or a top-bottom format.
In the 3D display of the present invention, the 3D format conversion module includes:
a buffer unit for buffering an input 3D video signal;
an original 3D format acquiring unit for acquiring a 3D format of an input 3D video signal;
the left and right format conversion unit is used for converting the 3D video signals in the left and right formats in the cache unit into a line interleaving format and then outputting the line interleaving format;
the upper and lower format conversion unit is used for converting the 3D video signals in the upper and lower formats in the buffer unit into line interleaved format and outputting the line interleaved format;
the two SDI synthesis units are used for synthesizing the two SDI signals in the buffer unit into a line interleaving format and outputting the line interleaving format;
and the line interleaved format direct transmission unit is used for directly outputting the 3D video signal in the line interleaved format in the buffer unit.
In the 3D display of the present invention, the converting one path of SDI signal/DVI signal of left and right format into SDI signal/DVI signal of line interleaved format includes: and (3) taking the odd lines/even lines of the input signals corresponding to the left eye and the even lines/odd lines of the input signals corresponding to the right eye from the buffer unit, integrating the odd lines/even lines of the input signals corresponding to the right eye in sequence, and outputting the integrated lines, wherein the width of the input signals of each line is increased to the sum of the widths of the input signals corresponding to the left eye and the right eye in an interpolation mode.
In the 3D display of the present invention, the converting one path of SDI signal/DVI signal of top and bottom format into SDI signal/DVI signal of line interleaved format includes: and taking lines of the input signals corresponding to the left eye and the right eye in turn from the buffer unit in sequence, integrating and outputting the lines.
In the 3D display of the present invention, the synthesizing the two SDI signals in the buffer unit into a line interleaved format and outputting the line interleaved format includes: if the input signal is an interlaced signal, two paths of SDI signals are taken in turn directly from the buffer unit according to the line sequence to be merged and output; and if the input signal is a progressive signal, taking the odd lines/even lines of the input signal corresponding to the left eye and the even lines/odd lines of the input signal corresponding to the right eye from the buffer unit, integrating in sequence and outputting.
In the 3D display of the present invention, the 3D format conversion module further includes a clock synchronization unit, configured to use a clock of an SDI signal/DVI signal as a video output clock of the 3D format conversion module when an original 3D video signal is an SDI signal/DVI signal; when the original 3D video signals are two SDI signals, one clock of the SDI signal is selected from the two SDI signals to serve as a video output clock of the 3D format conversion module, and when the two SDI signals are in an interlaced input format, one clock of the SDI signal is selected to be subjected to frequency multiplication and then serves as the video output clock of the 3D format conversion module.
In the 3D display of the present invention, the 3D format conversion module further includes a parallax adjustment unit, configured to remove data, which is the percentage of parallax adjustment of each line of the input signal corresponding to the left eye and the right eye, from the left and right sides of the line according to the set percentage of parallax adjustment, and perform interpolation processing on the remaining data to compensate the removed data.
In the 3D display of the present invention, the 3D format conversion module is an FPGA.
The invention also discloses an endoscope auxiliary diagnosis system which comprises a micro camera and the 3D display.
The 3D display and the endoscope auxiliary diagnosis system have the following beneficial effects: the 3D display supports the input of two SDI or one DVI video sources, the original 3D video signals are decoded into a TTL format by the display, then 3D format conversion is carried out, the video signals are uniformly converted into video signals with a specific 3D format, then the video signals are subjected to image processing and finally displayed by the 3D display panel, so that the display can directly receive SDI and DVI type 3D signals output by an endoscope, an additional video signal conversion box is not needed, the difficulty of integral realization is reduced, and the reliability of a system is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts:
FIG. 1 is a schematic diagram of a prior art endoscopic 3D display system;
fig. 2 is a schematic structural diagram of the inventive 3D display.
Detailed Description
In the embodiment of the invention, the 3D display provides two SDI interfaces and one DVI interface, the built-in video decoding module can decode the original 3D video signal accessed by the video input interface into a TTL format, the built-in 3D format conversion module performs 3D format conversion on the decoded 3D video signal, the 3D format is uniformly converted into a video signal with a specific 3D format, and the video signal is sent to the 3D display panel for display after image processing. Therefore, the display can directly receive SDI and DVI type 3D signals output by the endoscope without an additional video signal conversion box, thereby reducing the difficulty of the whole realization and providing the reliability of the system.
In order to better understand the technical solutions, the technical solutions will be described in detail below with reference to the drawings and the specific embodiments of the specification, and it should be understood that the embodiments and specific features of the embodiments of the present invention are detailed descriptions of the technical solutions of the present application, and are not limited to the technical solutions of the present application, and the technical features of the embodiments and examples of the present invention may be combined with each other without conflict.
Referring to fig. 2, it is a schematic structural diagram of the inventive 3D display. The 3D display of the present invention includes: the system comprises a video input interface, a video decoding module, a 3D format conversion module, an image processing module, a 3D display panel and a control module which is respectively connected with the video input interface, the video decoding module, the 3D format conversion module and the image processing module.
And the video input interface comprises two SDI interfaces and one DVI interface. In specific application, if one path of 3D signals output by the endoscope simultaneously contains SDI signals or DVI signals corresponding to left and right eyes, one SDI interface or one DVI interface of the invention can be connected with the endoscope, and if the 3D signals output by the endoscope are two paths of SDI signals corresponding to the left and right eyes, the two SDI interfaces of the invention can be connected with the endoscope.
And the video decoding module is used for decoding the original 3D video signal accessed by the video input interface into a TTL format for output, so that the processed signal is stable and reliable and has good compatibility. Specifically, the decoding chip can be implemented by using a commercially available decoding chip, for example, the SDI signal can be decoded by using a GS2970 chip, and the DVI signal can be decoded by using an SiI 1161 chip.
And the 3D format conversion module is used for performing 3D format conversion on the decoded 3D video signals and uniformly converting the 3D video signals into video signals with a specific 3D format for output. The 3D format conversion module can be implemented by an FPGA having a strong data processing performance and a low cost.
And the image processing module is used for carrying out image processing on each frame of image in the video information output by the 3D format conversion module. For example, scaling, color correction, luminance correction, image enhancement processing, and the like are performed on the input image. The specific image processing algorithm may refer to an image processing algorithm in an existing display, and is not described herein again.
The 3D display panel is used for displaying the processed video information;
and the control module is used for coordinating the work of each module.
The specific 3D format is a line interleaved format, and since the original 3D video signal is two SDI signals or one SDI signal/DVI signal in a left-right format, a line interleaved format, or a top-bottom format, format conversion mainly includes: the left format and the right format and the up format and the down format are converted into a line staggered format, the line staggered format can be directly output, and the two paths of SDI signals need to be synthesized into one path of SDI signal in the line staggered format. Therefore, the invention firstly buffers the signals of the left eye and the right eye respectively and then carries out format conversion.
The 3D format conversion module in the preferred embodiment comprises: the device comprises a cache unit, an original 3D format acquisition unit, a left format conversion unit, a right format conversion unit, an upper format conversion unit, a lower format conversion unit, two SDI synthesis units, a line staggered format direct transmission unit and a clock synchronization unit. Specifically, the method comprises the following steps:
and the buffer unit is used for buffering the input 3D video signals and respectively buffering the input signals of the left eye and the right eye.
And the original 3D format acquisition unit is used for acquiring the 3D format of the input 3D video signal and triggering one of the left and right format conversion units, the upper and lower format conversion units, the two SDI synthesis units and the line staggered format direct transmission unit to perform subsequent processing according to the 3D format.
It should be clear that, because the two interfaces of SDI and DVI have no 3D standard and the formats cannot be identified, the invention is directly set by the control module. After the control module is set, the control module informs the image processing module, and the image processing module feeds back to the 3D format conversion module through an I2C bus to inform the 3D format conversion module of corresponding format conversion.
And the left and right format conversion unit is used for converting the 3D video signals in the left and right formats in the buffer unit into a line interleaving format and then outputting the line interleaving format. The specific process is as follows: and (3) taking the odd lines/even lines of the input signals corresponding to the left eye and the even lines/odd lines of the input signals corresponding to the right eye from the buffer unit, integrating the odd lines/even lines of the input signals corresponding to the right eye in sequence, and outputting the integrated lines, wherein the width of the input signals of each line is increased to the sum of the widths of the input signals corresponding to the left eye and the right eye in an interpolation mode.
For example, 1, 3, 5 … lines (or 2, 4, 6 … lines) of the input signal for the left eye and 2, 4, 6 … lines (or 1, 3, 5 … lines) of the input signal for the right eye are taken, and then the 1, 2, 3, 4, 5, 6 … lines are re-integrated, and the interpolation of each line is doubled. I.e. the sampling is halved for the left and right eye signals in the field direction, so that the height of the encoded output signal is equal to the height of the input signal, the width corresponding to the sum of the widths of the two input signals.
And the up-down format conversion unit is used for converting the 3D video signals in the up-down format in the buffer unit into a line interleaving format and outputting the line interleaving format. The specific process is as follows: and taking lines of the input signals corresponding to the left eye and the right eye in turn from the buffer unit in sequence, integrating and outputting the lines.
For example, the height of the encoded output signal is equal to the sum of the heights of the two input signals, and the width of the output signal is equal to the height of the input signal by taking 1, 2, and 3 … lines of the input signal corresponding to the left eye as 1, 3, and 5 … lines (or 2, 4, and 6 … lines) of the output signal, and taking 1, 2, and 3 … lines of the input signal corresponding to the right eye as 2, 4, and 6 … lines (or 1, 3, and 5 … lines) of the output signal.
And the line interleaved format direct transmission unit is used for directly outputting the 3D video signal in the line interleaved format in the buffer unit.
And the two SDI synthesis units are used for synthesizing the two SDI signals in the buffer unit into a line interleaving format and outputting the line interleaving format. The specific process is as follows: if the input signal is an interlaced signal, two paths of SDI signals are taken in turn directly from the buffer unit according to the line sequence for merging and outputting, for example, a line signal is taken from the first path of SDI signal, a line signal is taken from the second path of SDI signal, a line signal is taken from the first path of SDI signal …, and the like; if the input signal is a progressive signal, the odd/even lines of the input signal corresponding to the left eye and the even/odd lines of the input signal corresponding to the right eye are taken from the buffer unit and integrated in sequence, and then output, for example, the lines 1, 3, 5 … (or lines 2, 4, 6 …) of the SDI signal corresponding to the left eye and the lines 2, 4, 6 … (or lines 1, 3, 5 …) of the input signal corresponding to the right eye are taken, and then the lines 1, 2, 3, 4, 5, 6 … are obtained by re-integration.
The clock synchronization unit is used for taking a clock of the SDI signal/DVI signal as a video output clock of the 3D format conversion module when the original 3D video signal is a path of SDI signal/DVI signal; when the original 3D video signals are two SDI signals, one clock of the SDI signal is selected from the two SDI signals to serve as a video output clock of the 3D format conversion module, and when the two SDI signals are in an interlaced input format, one clock of the SDI signal is selected to be subjected to frequency multiplication and then serves as the video output clock of the 3D format conversion module.
Since the images viewed by the left and right eyes have horizontal parallax, parallax adjustment is required for the left and right eyes. Preferably, the 3D format conversion module further includes a parallax adjustment unit, configured to remove data, which is the percentage of parallax adjustment on a left/right side of each line of the input signal corresponding to the left eye/the right eye, from the line of the input signal according to the set percentage of parallax adjustment, perform interpolation processing on the remaining data to compensate the removed data, and perform subsequent format conversion processing on the data after parallax adjustment.
For example, the parallax adjustment percentage is tentatively 10% (i.e. 10% may exceed the screen and not be displayed), one line of the original signal has 1920 pixels, when the parallax adjustment percentage is 10%, i.e. 192 pixels on the left side of the left eye line are not displayed and the original signal of (1920-192) pixels is left, the output signal is changed to 1920 pixels by interpolation. Similarly, the original signals of the 192 pixels on the right side of the right eye row, the remaining (1920-.
The invention also discloses an endoscope auxiliary diagnosis system which comprises a micro camera and the 3D display.
In summary, the 3D display and the endoscope-assisted diagnosis system according to the present invention have the following advantages: the 3D display supports the input of two SDI or one DVI video sources, the original 3D video signals are decoded into a TTL format by the display, then 3D format conversion is carried out, the video signals are uniformly converted into video signals with a specific 3D format, then the video signals are subjected to image processing and finally displayed by the 3D display panel, so that the display can directly receive SDI and DVI type 3D signals output by an endoscope, an additional video signal conversion box is not needed, the difficulty of integral realization is reduced, and the reliability of a system is improved.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (5)
1. A3D display, comprising:
the video input interface comprises two SDI interfaces and one DVI interface;
the video decoding module is used for decoding the original 3D video signal accessed by the video input interface into a TTL format for output;
the 3D format conversion module is used for performing 3D format conversion on the decoded 3D video signals and uniformly converting the 3D video signals into video signals with a specific 3D format for output;
the image processing module is used for carrying out image processing on each frame of image in the video information output by the 3D format conversion module;
the 3D display panel is used for displaying the processed video information;
the control module is used for coordinating the work of each module;
wherein: the specific 3D format is a line staggered format, and the original 3D video signal is two SDI signals or one SDI signal/DVI signal in a left-right format, a line staggered format or a top-bottom format;
wherein: the 3D format conversion module includes:
a buffer unit for buffering an input 3D video signal;
an original 3D format acquiring unit for acquiring a 3D format of an input 3D video signal;
the left and right format conversion unit is used for converting the 3D video signals in the left and right formats in the cache unit into a line interleaving format and then outputting the line interleaving format;
the upper and lower format conversion unit is used for converting the 3D video signals in the upper and lower formats in the buffer unit into line interleaved format and outputting the line interleaved format;
the two SDI synthesis units are used for synthesizing the two SDI signals in the buffer unit into a line interleaving format and outputting the line interleaving format;
the line interleaved format direct transmission unit is used for directly outputting the 3D video signal in the line interleaved format in the buffer unit;
wherein: the converting the left and right format 3D video signal in the buffer unit into the line interleaving format and then outputting the converted signal comprises: taking the odd lines/even lines of the input signals corresponding to the left eye and the even lines/odd lines of the input signals corresponding to the right eye from the buffer unit, integrating the lines in sequence, and outputting the lines, wherein the width of the input signals of each line is increased to the sum of the widths of the input signals corresponding to the left eye and the right eye in an interpolation mode;
wherein: the converting the 3D video signal of the top-bottom format in the buffer unit into the line interleaved format and outputting includes: taking lines of the input signals corresponding to the left eye and the right eye in turn from the buffer unit in sequence, integrating and outputting the lines;
wherein: the step of synthesizing the two SDI signals in the buffer unit into a line-interleaved format and outputting the line-interleaved format comprises the following steps: if the input signal is an interlaced signal, two paths of SDI signals are taken in turn directly from the buffer unit according to the line sequence to be merged and output; and if the input signal is a progressive signal, taking the odd lines/even lines of the input signal corresponding to the left eye and the even lines/odd lines of the input signal corresponding to the right eye from the buffer unit, integrating in sequence and outputting.
2. The 3D display of claim 1, wherein the 3D format conversion module further comprises a clock synchronization unit, configured to use a clock of the SDI/DVI signal as a video output clock of the 3D format conversion module when the original 3D video signal is a single SDI/DVI signal; when the original 3D video signals are two SDI signals, one clock of the SDI signal is selected from the two SDI signals to serve as a video output clock of the 3D format conversion module, and when the two SDI signals are in an interlaced input format, one clock of the SDI signal is selected to be subjected to frequency multiplication and then serves as the video output clock of the 3D format conversion module.
3. The 3D display according to claim 1, wherein the 3D format conversion module further includes a parallax adjustment unit configured to, according to a set parallax adjustment percentage, remove data of left/right sides of each line of the input signal corresponding to the left/right eyes, which account for the parallax adjustment percentage of the line, and perform interpolation processing on the remaining data to compensate the removed data.
4. The 3D display of claim 1, wherein the 3D format conversion module is an FPGA.
5. An endoscopy system comprising a miniature camera and a 3D display according to any of claims 1 to 4.
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| CN105100779A (en) * | 2015-09-18 | 2015-11-25 | 云南师范大学 | Head-worn stereoscopic video playing method |
| CN205545715U (en) * | 2016-03-16 | 2016-08-31 | 曹秀全 | Special 3D image processing facility of active medical treatment |
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