Method and apparatus of trigger detection for image acquisition applied for high speed digital camera device

An image acquisition and digital camera technology, applied in image communication, color TV parts, TV system parts and other directions, can solve the problems of inability to learn from, complicated operation, complex structure of high-speed digital camera devices, etc.

Active Publication Date: 2012-01-04
苏州巨佳电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of external triggering is that additional accessories need to be added, so the cost is high and the operation is cumbersome
The accuracy of manual triggering is very low, generally not used
[0004] It can be seen that the above-mentioned existing high-speed digital camera device is complex in structure, difficult to use and maintain, and requires high professional knowledge for operation, so that its application is greatly restricted, especially in on-site shooting applications such as sports games. The shortcomings are particularly prominent, obviously there are inconveniences and defects, and further improvements are urgently needed
[0005] Since the key technologies and standards of high-speed digital camera devices

Method used

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  • Method and apparatus of trigger detection for image acquisition applied for high speed digital camera device
  • Method and apparatus of trigger detection for image acquisition applied for high speed digital camera device
  • Method and apparatus of trigger detection for image acquisition applied for high speed digital camera device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] Figure 8 Among them, a kind of image acquisition that is used for high-speed digital camera device uses trigger detection method, and its steps are:

[0084] 1) The high-speed camera device captures images at high speed in real time and converts the images into data and outputs them to the image acquisition module; the image acquisition module stores the image data in the dynamic memory;

[0085] 2) The image acquisition module sends each image stored in the detection area into the detection area in real time for detection. If the trigger condition is met, an internal trigger signal is generated and the next step is transferred to; if not, return to this step and continue detection;

[0086] 3) After receiving the internal trigger signal, take the time t0 when the trigger signal is generated as the trigger time, and determine the image collected between the time Δt1 before the trigger time and the time Δt2 after the trigger time as the required high-speed image, as sho...

Embodiment 2

[0090] Figure 8 Among them, a kind of image acquisition that is used for high-speed digital camera device uses trigger detection method, and its steps are:

[0091] 1) The high-speed camera device captures images at high speed in real time and converts the images into data and outputs them to the image acquisition module; the image acquisition module stores the image data in the dynamic memory;

[0092] 2) The image acquisition module sends each image stored in the detection area into the detection area in real time for detection; if the trigger condition is met, an internal trigger signal is generated and transferred to the next step; if it is not met, return to this step and continue detection;

[0093] 3) After receiving the internal trigger signal, take the time t0 when the trigger signal is generated as the trigger time, and according to the specified number of images, save the x images before the trigger time and the y images after the trigger time as the required high-...

Embodiment 3

[0098] In this example, if Figure 7 As shown, the image acquisition module takes the contrast of the image color change in the set detection area as the cause of the trigger signal, and generates the trigger signal when the image color or brightness or contrast or speed change reaches the set threshold. The rest of the methods are the same as those in Embodiment 1 or Embodiment 2, and will not be repeated here.

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Abstract

The invention relates to a trigger detection method for image acquisition applied for a high speed digital camera device. The method comprises the following steps that: (1), a high speed camera device carries out real-time and high speed shooting on images and stores the images to a dynamic memory; (2), an image acquisition module sends all stored real-time images to a detection area for detection; if a trigger requirement is met, an internal trigger signal is generated and then go to a nest step; if not, go back to the step (2) and detection is carried out continuously; (3), after the internal trigger signal is received, a time t 0 is generated by the trigger signal and is utilized as a trigger time; it is determined that images are needed high speed images, wherein the images are collected between a delta t 1 time before the trigger time and a delta t 2 time after the trigger; and then the images are marked and then are stored into the dynamic memory; and the high speed shooting at this time is completed; (4), the high speed camera device continuously carries out image acquisition and processes of the step (2) and the step (3) are repeated; when the storage space is not enough, newly collected images automatically cover the images that have been collected and stored before; but, the high speed images that have unique marks are reserved and are not covered.

Description

technical field [0001] The invention relates to an image collection method for a high-speed digital camera device, in particular to a trigger detection method and device for image collection of a high-speed digital camera device. Background technique [0002] The so-called high-speed digital camera refers to a digital high-speed camera device that can shoot more than one hundred or even thousands of high-definition digital photos per second. Unlike ordinary digital cameras that can only shoot 30 or 60 VGA or one-megapixel photos per second, it is a camera technology that can shoot scenes at high speed. With the continuous advancement of technology, digital high-speed camera devices have gradually entered the application field. This type of device is used in shooting the moment of car collision, the opening process of car airbags, the momentary movement of sprinters crossing the line, and sports games. It plays an important role in many application fields such as the slow mo...

Claims

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Application Information

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IPC IPC(8): H04N5/232H04N7/18
Inventor 庄佑华
Owner 苏州巨佳电子科技有限公司
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