Data recorder for video jitter elimination

Abstract

The invention relates to the technical field of data processing, and discloses a data recorder for video jitter elimination, which comprises a master control MCU circuit, a sensor circuit and a TF circuit, and the master control MCU circuit is electrically connected with the sensor circuit and the TF circuit respectively. According to the invention, the problems of expensive equipment, poor portability, short endurance time and the like in the prior art are solved.

Description

Technical Field

[0001] The invention relates to the technical field of data processing, in particular to a data recorder for video jitter elimination. Background Art

[0002] With the rapid development of short videos, more and more people are starting to shoot and create videos. However, during the shooting process, the video is often unstable due to the shaking of the equipment. Although traditional handheld gimbals and other stabilization hardware can effectively solve this problem, their high price, large size and weight make them inconvenient to carry, and the short battery life often bothers users. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the present invention provides a data recorder for video de-shaking, which solves the problems of the prior art such as expensive equipment, poor portability and short battery life.

[0004] The technical solution adopted by the present invention to solve the above problems is:

[0005] A data recorder for video jitter elimination comprises a main control MCU circuit, a sensor circuit and a TF circuit. The main control MCU circuit is electrically connected to the sensor circuit and the TF card circuit respectively.

[0006] As a preferred technical solution, the MCU circuit includes a U1 chip, the model of the U1 chip is STM32F446RETx, pins 26, 27, 28, 39, 40, 52, and 54 of the U1 chip are electrically connected to the TF circuit, and pins 57, 58, and 59 are electrically connected to the sensor circuit respectively.

[0007] As a preferred technical solution, the sensor circuit includes a U2 chip and a 3.3V power supply. The model of the U2 chip is MPU6050. Pins 1, 11, 18, and 25 of the U2 chip are all grounded, pins 8 and 13 of the U2 chip are both electrically connected to the 3.3V power supply, pin 12 of the U2 chip is electrically connected to pin 57 of the U1 chip, pin 23 of the U2 chip is electrically connected to pin 58 of the U1 chip, and pin 24 of the U2 chip is electrically connected to pin 59 of the U1 chip.

[0008] As a preferred technical solution, the sensor circuit includes resistors R3 and R15, pin 23 of the U2 chip, resistor R3, and a 3.3V power supply are electrically connected, and pin 24 of the U2 chip, resistor R3, and a 3.3V power supply are electrically connected.

[0009] As a preferred technical solution, the TF circuit includes a TF card slot, pin 26 of the U1 chip is electrically connected to pin 8 of the TF card slot, pin 27 of the U1 chip is electrically connected to pin 1 of the TF card slot, pin 28 of the U1 chip is electrically connected to pin 5 of the TF card slot, pin 39 of the U1 chip is electrically connected to pin 7 of the TF card slot, pin 40 of the U1 chip is electrically connected to pin 9 of the TF card slot, pin 52 of the U1 chip is electrically connected to pin 2 of the TF card slot, and pin 54 of the U1 chip is electrically connected to pin 3 of the TF card slot.

[0010] As a preferred technical solution, it includes a 3.3V power supply and multiple 10K resistors. Pins 1, 2, 3, 7, 8, and 9 of the TF card slot are electrically connected to the 3.3V power supply through a 10k resistor, and pin 5 of the TF card slot is grounded through a 10k resistor.

[0011] As a preferred technical solution, pins 5 and 6 of the U2 chip are used as external clock signal input pins to connect to a crystal oscillator circuit to obtain clock information.

[0012] As a preferred technical solution, pin 7 of the U2 chip is used as a chip reset pin to connect an external reset button circuit to realize the reset function, and pin 11 of the U2 chip is used as an ADC pin to collect the voltage signal after the external battery is divided.

[0013] As a preferred technical solution, pins 14 and 15 of the U2 chip are used to connect to an external key circuit to realize key interaction, and pins 46 and 49 of the U2 chip are used as DAP download pins to connect to an external download tool to realize firmware download or debugging.

[0014] As a preferred technical solution, pins 16 and 17 of the U2 chip are used to connect to an external LED, and pins 21 and 23 of the U2 chip are used to connect to an external OLED.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) The present invention has a simple structure, inexpensive components, low total cost, and quick and easy installation; it is small in size and light in weight, with a total mass of about 50 grams, and does not cause a significant burden after being installed on the device; the present invention uses a high-capacity lithium battery as a power source, and the system itself has the characteristics of low power consumption and low power consumption, which further extends the battery life. The more common TYPE-C interface is used as a charging port, which can more conveniently replenish the battery life.

[0017] (2) The present invention can more accurately compensate for jitter and significantly improve the stability of the video by accurately recording camera motion data. By recording raw sensor data, the computational burden of post-processing can be reduced, which helps to achieve real-time or near real-time video stabilization. The tiny motion details captured by the present invention are conducive to processing high-frequency jitter, allowing users to adapt to different shooting environments and scenes, such as low light, fast movement and other challenging conditions. In addition, recording raw data allows different de-jitter algorithms or parameters to be applied in post-processing, increasing creative flexibility, reducing blur and jitter, and improving overall video clarity and viewing experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 One of the circuit diagrams of the present invention;

[0019] Figure 2 This is the second circuit diagram of the present invention;

[0020] Figure 3 The third circuit diagram of the present invention;

[0021] Figure 4 This is the fourth circuit diagram of the present invention;

[0022] Figure 5 This is the fifth circuit diagram of the present invention;

[0023] Figure 6 This is the sixth circuit diagram of the present invention;

[0024] Figure 7 The seventh circuit diagram of the present invention;

[0025] Figure 8 It is a program structure diagram of the present invention. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below in conjunction with embodiments and drawings, but the embodiments of the present invention are not limited thereto.

[0027] Example 1

[0028] like Figures 1 to 8 As shown, the present invention aims to provide an economical, practical and portable accelerometer and gyroscope data recorder to meet the needs of a large number of video creators.

[0029] The invention provides an accelerometer gyroscope data recorder based on video de-shaking software, which solves the problems of expensive equipment, poor portability and short battery life in the prior art.

[0030] Specifically, as follows:

[0031] 1. Design goals and basic functions

[0032] Gyroscope data is collected and formatted and saved according to a certain common data format.

[0033] It realizes functions such as OLED display information, accelerometer and gyroscope data collection, TF card file management, data formatting and storage, and battery power calculation.

[0034] 2. System structure

[0035] This system is designed based on a 32-bit microprocessor and a MEMS accelerometer gyroscope chip, and includes a main control MCU circuit. Specifically, the STM32F446RET6 chip is used. The chip has 64 pins, of which pins 5 and 6 are connected to the crystal oscillator circuit as external clock signal input pins to obtain clock information (both output pins of the crystal oscillator signal are connected to a 22pF capacitor to assist the crystal oscillator in starting the oscillator), pin 7 is used as a chip reset pin to connect the reset button circuit to realize the user reset function, pin 11 is used as an ADC pin to collect the voltage signal after the battery is divided to determine the power information of the lithium battery, pins 14 and 15 are used for the button detection function to connect to the button circuit to realize button interaction, pins 16 and 17 are connected to the LED to control the LED on and off to realize the status indication function, pins 21 and 23 are used as signal lines to connect the OLED screen to control its data display and other functions, and pins 26, 27, 28, 39, 40, 52, and 54 are used as signal lines to connect the TF card The slot (the model used in this embodiment is TF-115-ACP9) realizes the control of data storage, the 46 and 49 pins are used as DAP download pins to connect the download tool to realize the download and debugging functions of the firmware, the 57, 58, and 59 pins are used as signal lines to connect the MEMS accelerometer gyroscope MPU6050 chip (six-axis motion sensor or inertial measurement unit) in the sensor circuit to realize the acquisition of acceleration data and gyroscope data, the 60 pin is used as the BOOT mode selection pin to connect the 100k resistor to ground to control the chip startup mode, the 30 pin is used as the internal power supply voltage regulator end of the chip to connect a 4.7uF capacitor for filtering, the 13, 19, 32, 48, and 64 pins are used as the chip power supply positive electrode and the 12, 18, 31, 47, and 63 pins are used as the chip power supply negative electrode to connect the voltage regulator circuit (positive 3.3V, negative 0V) to realize power supply, and each positive pin is connected to a 0.1uF capacitor for power decoupling to maintain power supply stability;

[0036] The gyroscope circuit is mainly composed of the MPU6050 chip. Pins 1, 11, 18, and 25 are connected to GND, pins 8 and 13 are connected to the positive 3.3V, pin 10 is connected to a 0.1uF capacitor, and pins 23 and 24 are connected to the MCU main control as signal lines and connected to 3.3V pull-up by two 4.7k resistors to ensure signal stability.

[0037] The positive pole of the TF card power supply is connected to 3.3V, and the negative pole is connected to GND. The TF card D0~D3, CD and CMD signal lines are all connected to 3.3V through a 10k resistor to keep the signal stable. The CLK is connected to GND through a 10k resistor to keep the signal stable.

[0038] The power supply step-down voltage regulator circuit is composed of the RT9013 chip, with pins 1 and 3 connected to the positive pole of the power supply, pin 2 connected to GND, pins 1 and 2 directly connected in series with a 0.1uF capacitor as input filtering, and pin 5 as a 3.3V output; the lithium battery charging and discharging circuit is composed of TP4056, with pins 1, 3, and 9 connected to GND, pin 2 connected in series with a 2.2k resistor to GND, pin 4 connected in series with a 0.33R resistor connected to the power input and a 0.1uF and a 10uF capacitor as input filtering, pin 5 as a charging output and a 0.1uF capacitor connected to the positive pole of the battery, pins 6 and 7 connected to two LEDs as charging status indicators, and pin 8 connected to pin 4 as an enable pin.

[0039] 3. Working Principle

[0040] Figures 1 to 7 Demonstrate the specific connection methods of the main control MCU circuit, sensor circuit, TF card power supply and signal circuit, power supply step-down and voltage stabilization circuit, lithium battery charging and discharging circuit, etc.

[0041] The present invention can be adopted as Figure 8 The programming shown is implemented.

[0042] The main control MCU communicates with the MEMS accelerometer gyroscope through communication protocols such as IIC / SPI, obtains accelerometer gyroscope data at certain time intervals, and stores it in the form of files in a certain data format in a TF card or other media. At the same time, it uses display devices such as OLED / LCD to display relevant information in real time. The entire system is powered by a lithium battery and a voltage stabilization system.

[0043] The present invention has a simple structure, inexpensive components, low total cost, and quick and easy installation; it is small in size and light in weight, with a total mass of about 50 grams, and does not cause an obvious burden after being installed on the device; the present invention adopts a high-capacity lithium battery as a power source, and the system itself has the characteristics of low power consumption and low power consumption, which further extends the battery life. The more common TYPE-C interface is used as the charging port, which can more conveniently supplement the battery life.

[0044] The present invention can more accurately compensate for jitter and significantly improve the stability of the video by accurately recording camera motion data. By recording raw sensor data, the computational burden of post-processing can be reduced, which helps to achieve real-time or near real-time video stabilization. The tiny motion details captured by the present invention are conducive to processing high-frequency jitter, allowing users to adapt to different shooting environments and scenes, such as challenging conditions such as low light and fast movement. In addition, recording raw data allows different de-jitter algorithms or parameters to be applied in post-processing, increasing creative flexibility, reducing blur and jitter, and improving overall video clarity and viewing experience.

[0045] As described above, the present invention can be preferably implemented.

[0046] All features disclosed in all embodiments in this specification, or steps in all methods or processes implicitly disclosed, except for mutually exclusive features and / or steps, can be combined and / or expanded or replaced in any manner.

[0047] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. According to the technical essence of the present invention, within the spirit and principles of the present invention, any simple modification, equivalent replacement and improvement made to the above embodiment still falls within the protection scope of the technical solution of the present invention.

Claims

1. A data recorder for video de-jittering, characterized in that: It includes a main control MCU circuit, a sensor circuit, and a TF circuit. The main control MCU circuit is electrically connected to the sensor circuit and the TF card circuit respectively.

2. A data recorder for video de-jittering according to claim 1, characterized in that: The MCU circuit includes a U1 chip, the model of the U1 chip is STM32F446RETx, pins 26, 27, 28, 39, 40, 52, and 54 of the U1 chip are electrically connected to the TF circuit, and pins 57, 58, and 59 are electrically connected to the sensor circuit respectively.

3. A data recorder for video de-jittering according to claim 2, characterized in that: The sensor circuit includes a U2 chip and a 3.3V power supply. The model of the U2 chip is MPU6050. Pins 1, 11, 18, and 25 of the U2 chip are all grounded, pins 8 and 13 of the U2 chip are both electrically connected to the 3.3V power supply, pin 12 of the U2 chip is electrically connected to pin 57 of the U1 chip, pin 23 of the U2 chip is electrically connected to pin 58 of the U1 chip, and pin 24 of the U2 chip is electrically connected to pin 59 of the U1 chip.

4. A data recorder for video de-jittering according to claim 3, characterized in that: The sensor circuit includes a resistor R3 and a resistor R15. Pin 23 of the U2 chip, the resistor R3, and a 3.3V power supply are electrically connected. Pin 24 of the U2 chip, the resistor R3, and a 3.3V power supply are electrically connected.

5. A data recorder for video de-jittering according to claim 2, characterized in that: The TF circuit includes a TF card slot, pin 26 of the U1 chip is electrically connected to pin 8 of the TF card slot, pin 27 of the U1 chip is electrically connected to pin 1 of the TF card slot, pin 28 of the U1 chip is electrically connected to pin 5 of the TF card slot, pin 39 of the U1 chip is electrically connected to pin 7 of the TF card slot, pin 40 of the U1 chip is electrically connected to pin 9 of the TF card slot, pin 52 of the U1 chip is electrically connected to pin 2 of the TF card slot, and pin 54 of the U1 chip is electrically connected to pin 3 of the TF card slot.

6. A data recorder for video de-jittering according to claim 5, characterized in that: It includes a 3.3V power supply and multiple 10K resistors. Pins 1, 2, 3, 7, 8, and 9 of the TF card slot are electrically connected to the 3.3V power supply through a 10k resistor, and pin 5 of the TF card slot is grounded through a 10k resistor.

7. A data recorder for video de-jittering according to any one of claims 2 to 6, characterized in that: Pins 5 and 6 of the U2 chip are used as external clock signal input pins to connect to the crystal oscillator circuit to obtain clock information.

8. A data recorder for video de-jittering according to claim 7, characterized in that: Pin 7 of the U2 chip is used as a chip reset pin to connect an external reset button circuit to realize the reset function, and pin 11 of the U2 chip is used as an ADC pin to collect the voltage signal after the external battery is divided.

9. A data recorder for video de-jittering according to claim 7, characterized in that: Pins 14 and 15 of the U2 chip are used to connect to an external key circuit to achieve key interaction, and pins 46 and 49 of the U2 chip are used as DAP download pins to connect to an external download tool to download or debug the firmware.

10. A data recorder for video de-jittering according to claim 7, characterized in that: Pins 16 and 17 of the U2 chip are used to connect an external LED, and pins 21 and 23 of the U2 chip are used to connect an external OLED.

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