CN113643185B - Portable video image rotating device and method - Google Patents
Portable video image rotating device and method Download PDFInfo
- Publication number
- CN113643185B CN113643185B CN202110753047.5A CN202110753047A CN113643185B CN 113643185 B CN113643185 B CN 113643185B CN 202110753047 A CN202110753047 A CN 202110753047A CN 113643185 B CN113643185 B CN 113643185B
- Authority
- CN
- China
- Prior art keywords
- rotation
- video
- video data
- video image
- image
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000013507 mapping Methods 0.000 claims abstract description 66
- 230000015654 memory Effects 0.000 claims abstract description 65
- 238000004891 communication Methods 0.000 claims abstract description 10
- 238000012544 monitoring process Methods 0.000 abstract description 5
- 230000006870 function Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T3/00—Geometric image transformations in the plane of the image
- G06T3/60—Rotation of whole images or parts thereof
- G06T3/608—Rotation of whole images or parts thereof by skew deformation, e.g. two-pass or three-pass rotation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T1/00—General purpose image data processing
- G06T1/20—Processor architectures; Processor configuration, e.g. pipelining
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T1/00—General purpose image data processing
- G06T1/60—Memory management
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Image Processing (AREA)
- Studio Devices (AREA)
Abstract
The invention provides a portable video image rotating device and a method, wherein a camera shoots a video image at the current moment and transmits the video image to an image rotating module; the image rotation module converts the video image into video data; according to the horizontal angle set by the user, determining the rotation angle of the video image under the condition of rotation; establishing a mapping relation of video images before and after rotation according to the rotation angle; mapping the video data frame by frame, and storing the video data in a memory with the read state read at the current moment; reading the rotated video data from the memory which is not read in the reading state according to the sequence, and sending the video data to a camera display; displaying a video image corresponding to the rotated video data by a display; the plug interface plugs the portable video image rotation device into a communication interface in the vehicle. The device provided by the invention can replace pictures shot by the automobile data recorder, and the monitoring pictures are displayed in real time in a rotary calibration mode according to the inclination angle, so that the user experience can be improved.
Description
Technical Field
The invention belongs to the technical field of video image processing, and particularly relates to a portable video image rotating device and method.
Background
Video surveillance images are often used in a variety of applications as important evidence. In the event of traffic accidents during the running of the vehicle, traffic police need to look at external road monitoring to determine the accident responsibility. In order to avoid disputes, vehicle owners generally install a tachograph on a vehicle.
When the vehicle runs on a road section with poor road conditions, such as a pit, the vehicle can shake, the automobile data recorder can shake along with the shake of the vehicle, and pictures shot by the automobile data recorder incline. The user gives a sense of discomfort when viewing. The user experience is poor.
Disclosure of Invention
In order to solve the above problems in the prior art, the present invention provides a portable video image rotating device and method. The technical problems to be solved by the invention are realized by the following technical scheme:
in a first aspect, the present invention provides a portable video image rotation apparatus comprising: a display, an image rotation module, a camera and a plug interface,
the camera is used for shooting a video image at the current moment and transmitting the video image to the image rotation module;
the image rotation module is used for:
receiving a video image and converting the video image into video data;
determining whether the video image rotates according to the horizontal angle set by the user, and determining the rotation angle of the video image under the condition of rotation;
for each pixel point of the video data, establishing a mapping relation between rotation and non-rotation according to a rotation angle;
mapping the video data according to the mapping relation to obtain mapped video data;
wherein the video data after mapping is video data for correcting video image rotation;
determining the reading state of the own memory at the current moment;
wherein the read status includes unread and read;
storing the video data mapped at the current moment into a memory with the read state at the current moment;
reading the video data after rotation from the memory which is not read in the reading state according to the sequence and sending the video data to a display;
the camera is used for displaying video images corresponding to the rotated video data;
the plug-in interface is used for inserting the portable video image rotating device into a communication interface in a vehicle.
Optionally, the image rotation module includes: the video input decoding chip is used for decoding a video image at the current moment and transmitting the video image to the FPGA processor, the FPGA processor transmits the video data after rotation to the video output encoding chip, the video output encoding chip is used for converting the video data after rotation into a video image and transmitting the video image to the display for displaying, and the video output encoding chip is used for converting the video data after rotation into the video image and transmitting the video image to the display for displaying.
Optionally, for each pixel of the video data, establishing a mapping relationship between rotation and non-rotation according to a rotation angle includes:
determining the current position of each pixel point in the video data;
determining the position of the pixel point after rotation according to the rotation angle;
establishing a mapping relation between the current position and the rotated position for the same pixel point;
and determining the mapping relation as the mapping relation between rotation and non-rotation.
Optionally, storing the video data mapped at the current time in the memory with the read state at the current time includes:
and the video data of each frame after the mapping of the current moment is sequentially stored into a memory with the read state of the current moment according to the frame time sequence of the video data.
In a second aspect, the present invention provides a portable video image rotation method applied to a video image rotation apparatus, the video image apparatus comprising: the method comprises the following steps of:
the camera is used for shooting a video image at the current moment and transmitting the video image to the image rotation module;
the image rotation module is used for:
receiving a video image and converting the video image into video data;
determining whether the video image rotates according to the horizontal angle set by the user, and determining the rotation angle of the video image under the condition of rotation;
for each pixel point of the video data, establishing a mapping relation between rotation and non-rotation according to a rotation angle;
mapping the video data according to the mapping relation to obtain mapped video data;
wherein the video data after mapping is video data for correcting video image rotation;
determining the reading state of the own memory at the current moment;
wherein the read status includes unread and read;
storing the video data mapped at the current moment into a memory with the read state at the current moment;
reading video data after rotation from the flash memory which is not read in the reading state according to the sequence, and sending the video data to a display;
the display is used for displaying video images corresponding to the rotated video data;
the plug-in interface is used for inserting the portable video image rotating device into a communication interface in a vehicle.
Optionally, the image rotation module includes: the video input decoding chip is used for decoding a video image at the current moment and transmitting the video image to the FPGA processor, the FPGA processor transmits the video data after rotation to the video output encoding chip, the video output encoding chip is used for converting the video data after rotation into a video image and transmitting the video image to the display for displaying, and the video output encoding chip is used for converting the video data after rotation into the video image and transmitting the video image to the display for displaying.
Optionally, for each pixel of the video data, establishing a mapping relationship between rotation and non-rotation according to a rotation angle includes:
determining the current position of each pixel point in the video data;
determining the position of the pixel point after rotation according to the rotation angle;
establishing a mapping relation between the current position and the rotated position for the same pixel point;
and determining the mapping relation as the mapping relation between rotation and non-rotation.
Optionally, storing the video data mapped at the current time in the memory with the read state at the current time includes:
and the video data of each frame after the mapping of the current moment is sequentially stored into the flash memory with the read state of the current moment according to the frame time sequence of the video data.
1. The invention provides a portable video image rotating device and a method, wherein a camera shoots a video image at the current moment and transmits the video image to an image rotating module; the image rotation module converts the video image into video data; according to the horizontal angle set by the user, determining the rotation angle of the video image under the condition of rotation; establishing a mapping relation of video images before and after rotation according to the rotation angle; mapping the video data frame by frame, and storing the video data in a memory with the read state read at the current moment; reading the rotated video data from the memory which is not read in the reading state according to the sequence, and sending the video data to a camera display; displaying a video image corresponding to the rotated video data by a display; the plug interface plugs the portable video image rotation device into a communication interface in the vehicle. The device can replace pictures shot by the automobile data recorder, and display the monitoring pictures in real time according to the inclination angle through rotation calibration, so that the user experience can be improved.
2. The invention realizes video rotation by using a pure hardware scheme, can be independent of a computer system or an image acquisition system, and has the characteristics of low delay, convenient modularization increase and decrease and the like. And the rotation of the image video can be realized by only adding the realization between the image transmission lines without interaction with a computer or an image acquisition system, and the method has the characteristic of easy expansion. Meanwhile, the characteristic of video rotation determines that each frame can be read after the rotation operation is completely carried out, so that the delay of the system is the time required for transmitting one frame of image, and the system has the characteristic of low delay and has stronger instantaneity.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic structural diagram of a portable video image rotating apparatus according to an embodiment of the present invention;
FIG. 2 is a video image before rotation provided by an embodiment of the present invention;
FIG. 3 is a rotated video image provided by an embodiment of the present invention;
fig. 4 is a flowchart of a portable video image rotation method according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to specific examples, but embodiments of the present invention are not limited thereto.
Example 1
As shown in fig. 1, a portable video image rotating apparatus provided by the present invention includes: a display, an image rotation module, a camera and a plug interface,
the camera is used for shooting a video image at the current moment and transmitting the video image to the image rotation module;
an image rotation module for:
receiving a video image and converting the video image into video data;
determining whether the video image rotates according to the horizontal angle set by the user, and determining the rotation angle of the video image under the condition of rotation;
wherein the horizontal angle is the current ground horizontal line angle.
For each pixel point of video data, establishing a mapping relation between rotation and non-rotation according to a rotation angle;
mapping the video data according to the mapping relation to obtain mapped video data;
wherein the video data after mapping is video data for correcting video image rotation;
determining the reading state of the own memory at the current moment;
wherein the read status includes unread and read;
storing the video data mapped at the current moment into a memory with the read state at the current moment;
reading the video data after rotation from the memory which is not read in the reading state according to the sequence and sending the video data to a display;
a display for displaying a video image corresponding to the rotated video data;
and the plug-in interface is used for plugging the portable video image rotating device into a communication interface in the vehicle.
The image rotation module of the present invention includes: the video input decoding chip is used for decoding a video image at the current moment and transmitting the video image to the FPGA processor, the FPGA processor transmits the video data after rotation to the video output encoding chip, the video output encoding chip is used for converting the video data after rotation into a video image and transmitting the video image to the display for displaying, and the video output encoding chip is used for converting the video data after rotation into the video image and transmitting the video image to the display for displaying.
It will be appreciated that since the digital image is represented in memory as a binary discrete function f (x i ,y j ) The rotation of the image is realizedFunction f (x i ,y i ) Mapped rotationally as a rotated function f '(x' i ,y′ j ) Is a process of (2). The mapping relation can be obtained: (x) i ,y j )→(x j ,y n-i+1 ). As shown in fig. 2 and 3, the rotation angle is 90 degrees, and the image data f (x 1 ,y j ) For example, it is rotated to f '(x' j ,y′ n ). The video image before rotation is fig. 2, and the video image after rotation is fig. 3. Thereby, the address of any point after rotation is (n-x) i )+m*y j ，(x i ,y j ) Representing the line position before the image is rotated).
It can be understood that the flag bit of the read state is 1 when the frame image data is stored in the memory, and is 0 when the frame image data stored in the memory is read. The invention can determine the reading state of the flash memory by reading the flag bit.
The storage process of the invention is as follows: the image data of the first frame according to the VESA standard format is written into the first memory according to the mapping relation, and in order to avoid the situation of image coverage, the image of the second frame is written into the second memory according to the mapping relation, as above, the 3 rd frame is written into the first memory … …. After the first memory write operation is completed. For the specific implementation of memory read-write, the two sections of memories and the corresponding memory marking rules are followed. The memories at two ends are a first memory and a second memory respectively, and the memory marking rules are as follows: when the flag bit is 0, the state is read, and when the flag bit is 1, the state is not read. Since the memory reads and writes in burst form. All at the write end, do the following processing: the memory marking rule is firstly followed, and then the DDR memory data mask technology mode is used for writing into the DDR memory in pixels, namely 24 bits of each pixel. And reading the image in the first memory in an address increment mode, after the writing operation of the second memory is finished, reading the image in the second memory in an address increment mode, and reading the image … … in the first memory after the 3 rd frame is written into the first memory, thus realizing the rotation of the video image. At the read-out end, following the memory marking rules, the data is read out in bursts with a prefetch length of 8, i.e. 8 pixel data are read out at a time. Therefore, the read-write bandwidth of the DDR memory can be utilized to the maximum extent.
The invention provides a portable video image rotating device, comprising: the device comprises a display, an image rotation module, a camera and a plug-in interface, wherein the camera shoots a video image at the current moment and transmits the video image to the image rotation module; the image rotation module receives the video image and converts the video image into video data; determining whether the video image rotates according to the horizontal angle set by the user, and determining the rotation angle of the video image under the condition of rotation; for each pixel point of video data, establishing a mapping relation between rotation and non-rotation according to a rotation angle; mapping the video data according to the mapping relation to obtain mapped video data; determining the reading state of the own memory at the current moment; storing the video data mapped at the current moment into a memory with the read state at the current moment; reading the video data after rotation from the memory which is not read in the reading state according to the sequence and sending the video data to the camera; the camera is used for displaying video images corresponding to the rotated video data; and the plug-in interface is used for plugging the portable video image rotating device into a communication interface in the vehicle. The device can replace pictures shot by the automobile data recorder, and display the monitoring pictures in real time according to the inclination angle through rotation calibration, so that the user experience can be improved.
As an alternative embodiment of the present invention, the image rotation module includes: the video input decoding chip is used for decoding a video image at the current moment and transmitting the video image to the FPGA processor, the FPGA processor transmits the video data after rotation to the video output encoding chip, the video output encoding chip is used for converting the video data after rotation into a video image and transmitting the video image to the display for displaying, and the video output encoding chip is used for converting the video data after rotation into the video image and transmitting the video image to the display for displaying.
As an optional embodiment of the present invention, for each pixel of video data, establishing a mapping relationship between rotation and non-rotation according to a rotation angle includes:
step one: determining the current position of each pixel point in the video data;
step two: determining the position of the pixel point after rotation according to the rotation angle;
step three: establishing a mapping relation between the current position and the rotated position for the same pixel point;
step four: and determining the mapping relation as the mapping relation between rotation and non-rotation.
As an optional implementation manner of the present invention, storing the video data mapped at the current time into the memory whose current time reading state is read includes:
and the video data of each frame after the mapping of the current moment is sequentially stored into a memory with the read state of the current moment according to the frame time sequence of the video data.
As shown in fig. 4, the portable video image rotation method provided by the present invention is applied to a video image rotation device, the video image device includes: the method comprises the following steps of:
s1, a camera is used for shooting a video image at the current moment and transmitting the video image to an image rotation module;
s2, an image rotation module for:
receiving a video image and converting the video image into video data;
determining whether the video image rotates according to the horizontal angle set by the user, and determining the rotation angle of the video image under the condition of rotation;
for each pixel point of video data, establishing a mapping relation between rotation and non-rotation according to a rotation angle;
mapping the video data according to the mapping relation to obtain mapped video data;
wherein the video data after mapping is video data for correcting video image rotation;
determining the reading state of the own memory at the current moment;
wherein the read status includes unread and read;
storing the video data mapped at the current moment into a memory with the read state at the current moment;
reading the rotated video data from the memory which is not read in the reading state according to the sequence, and sending the video data to the camera;
s3, a display is used for displaying video images corresponding to the rotated video data;
and S4, a plug-in interface is used for inserting the portable video image rotating device into a communication interface in the vehicle.
The invention provides a portable video image rotation method, wherein a camera shoots a video image at the current moment and transmits the video image to an image rotation module; the image rotation module converts the video image into video data; according to the horizontal angle set by the user, determining the rotation angle of the video image under the condition of rotation; establishing a mapping relation between rotation and non-rotation according to the rotation angle; mapping the video data, and storing the video data into a memory with a read state at the current moment; reading the rotated video data from the memory which is not read in the reading state according to the sequence, and sending the video data to the camera; the camera displays a video image corresponding to the rotated video data; the plug interface plugs the portable video image rotation device into a communication interface in the vehicle. The device can replace pictures shot by the automobile data recorder, and display the monitoring pictures in real time according to the inclination angle through rotation calibration, so that the user experience can be improved.
The image rotation module includes: the video input decoding chip is used for decoding a video image at the current moment and transmitting the video image to the FPGA processor, the FPGA processor transmits the video data after rotation to the video output encoding chip, the video output encoding chip is used for converting the video data after rotation into a video image and transmitting the video image to the display for displaying, and the video output encoding chip is used for converting the video data after rotation into the video image and transmitting the video image to the display for displaying.
As an optional embodiment of the present invention, for each pixel of video data, establishing a mapping relationship between rotation and non-rotation according to a rotation angle includes:
determining the current position of each pixel point in the video data;
determining the position of the pixel point after rotation according to the rotation angle;
establishing a mapping relation between the current position and the rotated position for the same pixel point;
and determining the mapping relation as the mapping relation between rotation and non-rotation.
As an optional implementation manner of the present invention, storing video data mapped at the current time into a flash memory whose current time reading state is read includes:
and the video data of each frame after the mapping of the current moment is sequentially stored into a memory with the read state of the current moment according to the frame time sequence of the video data.
The foregoing is a further detailed description of the invention in connection with the preferred embodiments, and it is not intended that the invention be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the invention, and these should be considered to be within the scope of the invention.
Claims (6)
1. A portable video image rotation apparatus, comprising: a display, an image rotation module, a camera and a plug interface,
the camera is used for shooting a video image at the current moment and transmitting the video image to the image rotation module;
the image rotation module is used for:
receiving a video image and converting the video image into video data;
determining whether the video image rotates according to the horizontal angle set by the user, and determining the rotation angle of the video image under the condition of rotation;
for each pixel point of the video data, establishing a mapping relation between rotation and non-rotation according to a rotation angle;
mapping the video data according to the mapping relation to obtain mapped video data;
wherein the video data after mapping is video data for correcting video image rotation;
determining the reading state of the own memory at the current moment;
wherein the read status includes unread and read;
storing the video data mapped at the current moment into a memory with the read state at the current moment;
reading the video data after rotation from the memory which is not read in the reading state according to the sequence and sending the video data to a display;
the camera is used for displaying video images corresponding to the rotated video data;
the plug-in interface is used for inserting the portable video image rotating device into a communication interface in a vehicle;
the establishing a mapping relationship between rotation and non-rotation according to the rotation angle for each pixel point of the video data includes:
determining the current position of each pixel point in the video data;
determining the position of the pixel point after rotation according to the rotation angle;
establishing a mapping relation between the current position and the rotated position for the same pixel point;
and determining the mapping relation as the mapping relation between rotation and non-rotation.
2. The portable video image rotation apparatus of claim 1, wherein the image rotation module comprises: the video input decoding chip is used for decoding a video image at the current moment and transmitting the video image to the FPGA processor, the FPGA processor transmits the video data after rotation to the video output encoding chip, the video output encoding chip is used for converting the video data after rotation into a video image and transmitting the video image to the display for displaying, and the video output encoding chip is used for converting the video data after rotation into the video image and transmitting the video image to the display for displaying.
3. The portable video image rotating apparatus according to claim 1, wherein storing the video data mapped at the current time in the memory whose current time reading state is read comprises:
and the video data of each frame after the mapping of the current moment is sequentially stored into a memory with the read state of the current moment according to the frame time sequence of the video data.
4. A portable video image rotation method, the method being applied to a video image rotation apparatus, the video image apparatus comprising: the method comprises the following steps of:
the camera is used for shooting a video image at the current moment and transmitting the video image to the image rotation module;
the image rotation module is used for:
receiving a video image and converting the video image into video data;
determining whether the video image rotates according to the horizontal angle set by the user, and determining the rotation angle of the video image under the condition of rotation;
for each pixel point of the video data, establishing a mapping relation between rotation and non-rotation according to a rotation angle;
mapping the video data according to the mapping relation to obtain mapped video data;
wherein the video data after mapping is video data for correcting video image rotation;
determining the reading state of the own memory at the current moment;
wherein the read status includes unread and read;
storing the video data mapped at the current moment into a memory with the read state at the current moment;
reading video data after rotation from the flash memory which is not read in the reading state according to the sequence, and sending the video data to a display;
the display is used for displaying video images corresponding to the rotated video data;
the plug-in interface is used for inserting the portable video image rotating device into a communication interface in a vehicle;
the establishing a mapping relationship between rotation and non-rotation according to the rotation angle for each pixel point of the video data includes:
determining the current position of each pixel point in the video data;
determining the position of the pixel point after rotation according to the rotation angle;
establishing a mapping relation between the current position and the rotated position for the same pixel point;
and determining the mapping relation as the mapping relation between rotation and non-rotation.
5. The portable video image rotation method of claim 4, wherein the image rotation module comprises: the video input decoding chip is used for decoding a video image at the current moment and transmitting the video image to the FPGA processor, the FPGA processor transmits the video data after rotation to the video output encoding chip, the video output encoding chip is used for converting the video data after rotation into a video image and transmitting the video image to the display for displaying, and the video output encoding chip is used for converting the video data after rotation into the video image and transmitting the video image to the display for displaying.
6. The portable video image rotation method according to claim 4, wherein storing the video data mapped at the current time in the memory whose current time reading state is read comprises:
and the video data of each frame after the mapping of the current moment is sequentially stored into the flash memory with the read state of the current moment according to the frame time sequence of the video data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110753047.5A CN113643185B (en) | 2021-07-02 | 2021-07-02 | Portable video image rotating device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110753047.5A CN113643185B (en) | 2021-07-02 | 2021-07-02 | Portable video image rotating device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113643185A CN113643185A (en) | 2021-11-12 |
| CN113643185B true CN113643185B (en) | 2023-08-18 |
Family
ID=78416625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110753047.5A Active CN113643185B (en) | 2021-07-02 | 2021-07-02 | Portable video image rotating device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113643185B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111193877A (en) * | 2019-08-29 | 2020-05-22 | 桂林电子科技大学 | ARM-FPGA (advanced RISC machine-field programmable gate array) cooperative wide area video real-time fusion method and embedded equipment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8610830B2 (en) * | 2008-09-11 | 2013-12-17 | Apple Inc. | Video rotation method and device |
| CN104902139B (en) * | 2015-04-30 | 2018-10-26 | 北京小鸟看看科技有限公司 | A kind of video data handling procedure of head-mounted display and head-mounted display |
-
2021
- 2021-07-02 CN CN202110753047.5A patent/CN113643185B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111193877A (en) * | 2019-08-29 | 2020-05-22 | 桂林电子科技大学 | ARM-FPGA (advanced RISC machine-field programmable gate array) cooperative wide area video real-time fusion method and embedded equipment |
Non-Patent Citations (1)
| Title |
|---|
| 操虹 ; 卢荣胜 ; 马程 ; .基于ARM9的多路视频采集系统设计.现代显示.2009,(05),全文. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113643185A (en) | 2021-11-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10235795B2 (en) | Methods of compressing a texture image and image data processing system and methods of generating a 360 degree panoramic video thereof | |
| JP2010535382A (en) | How to supply pixels from an update buffer | |
| US10891245B2 (en) | Video device and method for embedded data capture on a virtual channel | |
| US9826252B2 (en) | Method and video system for freeze-frame detection | |
| US6040843A (en) | System for transmission and recovery of digital data using video graphics display processor and method of operation thereof | |
| CN105187753A (en) | System for recording panoramic video | |
| CN113643185B (en) | Portable video image rotating device and method | |
| US20040070670A1 (en) | Wireless digital camera image caching apparatus and method | |
| WO2023024421A1 (en) | Method and system for splicing multiple channels of images, and readable storage medium and unmanned vehicle | |
| CN111742547B (en) | Method and device for encoding and decoding three-dimensional scenes in a data stream | |
| JP3678187B2 (en) | Television receiver | |
| US20160173847A1 (en) | Video processing unit and method of buffering a source video stream | |
| KR20210042967A (en) | Signaling the packing strategy | |
| CN100387042C (en) | Image expansion and display method, image expansion and display device, and program for image expansion and display | |
| US20090125954A1 (en) | Streaming video transmission from pc to remote monitor | |
| KR100863925B1 (en) | Apparatus and method of concealing image error | |
| CN111669516A (en) | Method for realizing transverse splicing of eight paths of video data and real-time synchronization of IMU (inertial measurement Unit) data based on FPGA (field programmable Gate array) | |
| CN105120194A (en) | Method of recording panoramic video and apparatus thereof | |
| TWI400889B (en) | Systems and methods for implementing cyclic redundancy checks | |
| JP2006023750A (en) | Data processing method in display controller, display controller and image processing apparatus | |
| JP3820682B2 (en) | MEMORY CONTROL DEVICE, DATA WRITE / READ METHOD, AND IMAGING DEVICE | |
| US11836337B1 (en) | Automated static or dynamic format selection of screen shot capture responsive to size of a display | |
| WO2018152783A1 (en) | Image processing method and device, and aircraft | |
| JP2004213487A (en) | Card type device | |
| CN117676064B (en) | Video signal transmission method, equipment and storage medium based on SPI communication |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |