TWI555005B - Method and system for testing image data - Google Patents

Description

Image data testing method and system

The present invention relates to a test method and system, and in particular to a method and system for testing a display card.

With the continuous development of display technology and hardware technology, the display functions used in computer systems continue to evolve. Features such as three-dimensional (3D) stereo imaging, immersive image simulation, and even instant image capture and combined imaging are constantly being developed and become standard specifications widely accepted by consumers. As consumers' demands for display functions of computer systems continue to increase, the display interface supported by display cards is no longer limited to simple still image display. The current display card must have a display interface for dynamic and three-dimensional (3D) stereoscopic image display. Therefore, currently commercially available display cards are mostly integrated with a Video Graphics Array (VGA) interface and a digital video interface (Digital Visual Interface, DVI). ) and multiple display interfaces for different image and sound functions such as High Definition Multimedia Interface (HDMI).

As mentioned above, in order to ensure the quality of the display card, it is avoided to enter the market. Before the factory is shipped, the inspection personnel usually check the display card with the naked eye. The purpose of 3D video is to ensure that the display card will not cause problems for a long time, but in the process of 3D image testing, a small number of display cards will cause image breakage. When the factory is conducting a large number of 3D image tests, the tester cannot always pay attention to whether there is an abnormality in the display card test. Therefore, after the display card test is finished, if the detection personnel do not find any phenomenon such as broken images, the display card is directly packaged and shipped. Until the user uses the display card, it will be known that the display card will have a broken image.

The method of manual detection is not only time-consuming, but also many items must be tested per display card, so it is obviously not efficient to manually. In addition, because the tester judges with the naked eye during the test, and the display card with flaws is not detected due to misjudgment, or the chance that the normal product is judged to have a defective display card is also high, indirectly causing production. Cost and increase in future maintenance costs. Therefore, how to improve the efficiency of the display card test process, and at the same time have the test accuracy, thereby reducing the production and future maintenance costs, has become an important issue for manufacturers.

The invention provides a method and system for testing image data.

The invention provides an image data testing system for testing a display card. The image data testing system includes an image capturing device, a storage device, and a processor. The image capturing device is coupled to the display card for capturing image data outputted by one of the I/O ports of the display card and generating a captured image data. The storage device is configured to store a predetermined image data. The processor is coupled to the image capturing device and the storage device Comparing the captured image data and the predetermined image data, and generating a comparison result, determining whether the display card is normal according to the comparison result.

In a preferred embodiment, the captured image data is a plurality of consecutive screenshots. In a preferred embodiment, the image capturing device captures the captured image data based on a time information or a frame information. In a preferred embodiment, the captured image data is a partial screenshot, and the partial screenshot includes a text message. In a preferred embodiment, the captured image data is a partial screenshot, and the partial screenshot includes a specific scene. In a preferred embodiment, the image data testing system further includes a switch. The switch is coupled to the display card and the image capturing device, and has at least one connection port; wherein, when the display card has a plurality of I/O ports supporting different display interfaces, each I/O of the display card The O ports are respectively coupled to the corresponding connection ports; and the switcher switches the I/O ports to output image data corresponding to the I/O ports. In a preferred embodiment, the comparison result includes at least one screenshot path. When the processor determines that the captured image data is abnormal, at least one abnormally captured data is found according to the at least one screenshot path. Screenshot.

The present invention provides an image data testing method for testing a display card in an image data system, comprising: capturing, by an image capturing device, one image data outputted by one of the I/O ports of the display card And generating a captured image data; comparing, by the processor, the captured image data with a predetermined image data stored in a storage device, and generating a comparison result; and by using the processor It is judged whether the above display card is normal according to the above comparison result.

In a preferred embodiment, the captured image data is a plurality of consecutive screenshots. In a preferred embodiment, the step of capturing is based on a time information or a frame information to retrieve the captured image data. In a preferred embodiment, the captured image data is a partial screenshot, and the partial screenshot includes a text message. In a preferred embodiment, the captured image data is a partial screenshot, and the partial screenshot includes a specific scene. In a preferred embodiment, the image testing system further includes a switch having at least one connection port, and the method further includes: when the display card has a plurality of I/O ports supporting different display interfaces, the display Each of the I/O ports of the card is coupled to each of the corresponding port ports; and the switcher switches the I/O port to output image data corresponding to the I/O port. In a preferred embodiment, the comparison result includes at least one screenshot path. When the processor determines that the captured image data is abnormal, at least one abnormally captured data is found according to the at least one screenshot path. Screenshot.

The above and other objects, features and advantages of the present invention will become more <RTIgt;

100‧‧‧Image Data Test System

110‧‧‧Image capture device

112, 114, 116‧‧‧ connection port

120‧‧‧ processor

130‧‧‧Storage device

140‧‧‧Switcher

200‧‧‧ display card

202, 204, 206‧‧‧I/O mouth

400‧‧‧ Method flow chart

Steps S405, S410, S415‧‧

1A-1B are schematic diagrams showing an image data testing system according to an embodiment of the invention.

2A-2B are schematic diagrams showing an image data testing system in which an image capturing device has a plurality of ports according to an embodiment of the invention.

FIG. 3 is a schematic diagram showing an image data testing system of a video capturing device having a switch according to an embodiment of the invention.

4 is a flow chart showing a method of image data testing according to an embodiment of the invention.

In order to make the objects, features, and advantages of the present invention more comprehensible, the preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The present specification provides various embodiments to illustrate the technical features of various embodiments of the present invention. The arrangement of the various elements in the embodiments is for illustrative purposes and is not intended to limit the invention. The overlapping portions of the drawings in the embodiments are for the purpose of simplifying the description and are not intended to be related to the different embodiments.

FIG. 1A is a schematic diagram showing an image data testing system 100 according to an embodiment of the invention. The image data testing system 100 is used to test a display card 200, wherein the display card 200 has an I/O port 202. In another embodiment, display card 200 can be included in image data test system 100, as shown in FIG. 1B.

The image data testing system 100 includes an image capturing device 110, a processor 120, and a storage device 130. The image capture device 110 is coupled to the I/O port 202 of the display card 200 for capturing image data output by the I/O port 202 and generating a captured image data. Group 110 includes, but is not limited to, an image capture card. The storage device 130 pre-stores a predetermined image data, and the predetermined image data described herein is image data output by an I/O port of each type of standard display card, for example, one of the display cards is outputted by an I/O port. It Normal image data. The image data generated by the standard image display card in the image data test system can be stored in the storage device 130 for the processor 120 to perform the captured image captured by the test image capture device. Data or comparison.

The processor 120 is coupled to the image capturing device 110 and the storage device 130 for comparing the captured image data and the predetermined image data, and generating a comparison result. The processor 120 determines whether the display card is normal based on the comparison result described above.

In one embodiment, display card 200 can have complex I/O ports 202, 204, 206 that support different display interfaces, as shown in FIG. 2A. The display interface described herein may include, but is not limited to, a video graphics array (VGA), a digital video interface (DVI), and a high definition multimedia interface (HDMI) display. Different I/O ports such as Display Port (DP). The image capture device 110 can also include a plurality of connection ports 112, 114, 116 coupled to the plurality of I/O ports 202, 204, 206 of the display card 200, respectively. Similarly, in another embodiment, display card 200 including complex I/O ports 202, 204, 206 may also be included in image data test system 100, as shown in FIG. 2B. It should be noted that the number of the connection ports of the I/O port and the image capturing device 110 may be increased or decreased, and is not limited thereto.

In another embodiment, when the image capturing device 110 has only one connection port 112, the image data testing system 100 further includes a switch 140, as shown in FIG. The switch 140 is coupled to the plurality of I/O ports 202, 204, and 206 of the display card 200 and the image capturing device 110. The switch 140 has at least one connection port 142, 144, 146. Each of the I/O ports 202, 204, and 206 of the display card 200 is coupled Corresponding to each of the connection ports 142, 144, 146. The switch 140 has a function of switching image data to guide one of the connection ports 142, 144, 146 to output image data.

In addition, the processor 120 can control the image capturing device 110 to take screenshots of the image data output by the I/O port of the display card 200 according to different screenshot modes. In an embodiment, the screenshot mode is such that the image capturing device 110 performs continuous screenshots on the image data according to a time information. Table 1 is a screenshot of the image capturing device 110 based on a time information at successive time points of a fixed interval.

After the image capturing device 110 performs continuous screenshots at each time point in Table 1, a plurality of consecutive screenshots of the above time points are generated, stored in the storage device 130, and the screenshot paths corresponding to the screenshots are respectively imported into the table 1. It is convenient for the inspectors to find the above screenshots in the future.

In another embodiment, the screenshot mode may be such that the image capturing device 110 performs continuous screenshots on the image data according to a frame information. Table 2 is a screenshot taken by the image capturing device 110 in a fixed interval of continuous frames according to a frame information.

After the image capturing device 110 performs continuous screenshots on the frames in the table 2, a plurality of consecutive screenshots of the frame are generated, stored in the storage device 130, and respectively transferred to the screenshot path corresponding to the screenshot in the table 2, It is convenient for the inspectors to find the above screenshots in the future.

In addition, the screenshot mode may also be a partial screenshot of the image data by the image capturing device 110. Therefore, the captured image data generated by the image capturing device 110 is a partial screenshot, and the partial screenshot may include a text message. In another embodiment, the partial screenshot may also include a specific scene.

After the image capturing device 110 generates the captured image data, the processor 120 can compare the captured image data with the predetermined image data stored in the storage device, and generate a comparison result. Table 3 is the comparison result produced by the processor 120.

As shown in Table 3, all the comparison results are presented as Pass, that is, there is no problem with this display card. The processor 120 determines that the display card is functioning normally according to the comparison result described above. Table 4 is another alignment result produced by processor 120.

As shown in Table 4, at the time point of 21:30, the comparison result is Fail, that is, the display card has a problem at 21:30. In an embodiment, if a part of the screenshot of the image data is captured, the cause of the problem may be caused by text blur, noise interference, and text blur caused by broken images. In another embodiment, if the captured image data is a continuous screenshot, the cause of the problem may be caused by image breakage, noise interference, splash screen, and color mismatch of the screen. The processor 120 will determine that the display card is abnormal according to the comparison result described above. In addition, if the inspector does not know the factor causing Fail in the comparison result, the screenshot of Fail can be accessed via the screenshot path stored in the storage device 130 to see what causes the reason.

4 is a flow chart 400 showing a method of image data testing according to an embodiment of the invention. This method is used in an image data system. In step S405, an image capturing device captures one image data outputted by one of the I/O ports of the display card, and generates a captured image data. In step S410, the captured image data and one of the predetermined image data stored in a storage device are compared by a processor, and a comparison result is generated. Finally, in step S415, the foregoing processor determines the display card according to the comparison result. Is it normal?

Therefore, the image data testing system and method of the present invention can avoid the misjudgment by the naked eye detection, reduce the burden on the tester, and effectively improve the accuracy of the display card test, thereby improving the overall detection process. Quality control, increase product yield and reduce future maintenance costs.

The above embodiments are described using a variety of angles. It will be apparent that the teachings herein may be presented in a variety of ways, and that any particular structure or function disclosed in the examples is merely representative. In light of the teachings herein, anyone skilled in the art will appreciate that the content presented herein can be independently rendered in various different types or in a variety of different forms. By way of example, it may be implemented by some means or by some means in any manner as mentioned in the foregoing. The implementation of one device or the execution of one mode may be implemented in any one or more of the types discussed above with any other architecture, or functionality, or architecture and functionality.

Any specific sequence or layering of the procedures disclosed herein is by way of example only. Based on design preferences, it must be understood that any specific order or hierarchy of steps in the program may be rearranged within the scope of the disclosure. The accompanying claims are intended to be illustrative of a

While the present invention has been described in its preferred embodiments, the present invention is not intended to limit the invention, and the present invention may be modified and modified without departing from the spirit and scope of the invention. The scope of protection is subject to the definition of the scope of the patent application.

400‧‧‧ Method flow chart

Steps S405, S410, S415‧‧

Claims (12)

An image data testing system for testing a display card, comprising: an image capturing device coupled to the display card for capturing image data outputted by one of the I/O ports of the display card, and Generating a captured image data; a storage device for storing a predetermined image data; and a processor coupled to the image capturing device and the storage device for comparing the captured image data and the Predetermining the image data, and generating a comparison result, determining whether the display card is normal according to the comparison result; wherein the comparison result includes at least one screenshot path, when the processor determines that the captured image data is abnormal, Finding at least one abnormally captured screenshot based on the at least one screenshot path described above. The image data testing system of claim 1, wherein the captured image data is a plurality of consecutive screenshots. The image data testing system of claim 2, wherein the image capturing device captures the captured image data according to a time information or a frame information. For example, in the image data testing system described in claim 1, wherein the captured image data is a part of a screenshot, and the partial screenshot includes a text message. The image data testing system of claim 1, wherein the captured image data is a partial screenshot, and the partial screenshot includes a specific scene. The image data testing system of claim 1, further comprising: a switch coupled to the display card and the image capturing device, having at least one connection port; wherein, when the display card has support When the I/O ports of the display interface are different, the I/O ports of the display card are respectively coupled to the corresponding connection ports; and the switcher switches the I/O ports to output the corresponding Image data for I/O ports. An image data testing method for testing a display card in an image data system, comprising: capturing, by an image capturing device, one image data outputted by one of the I/O ports of the display card, and generating Image data is captured; a predetermined image data stored in a storage device is compared with a captured image by a processor, and a comparison result is generated; and the ratio is calculated by the processor according to the ratio Determining whether the display card is normal according to the result; wherein the comparison result includes at least one screenshot path, and when the processor determines that the captured image data is abnormal, finding at least one abnormality according to the at least one screenshot path Take a screenshot. The image data testing method of claim 7, wherein the captured image data is a plurality of consecutive screenshots. The image data test method of claim 8, wherein the step of extracting is based on a time information or a frame information to retrieve the captured image data. For example, in the image data testing method described in claim 7, wherein the captured image data is a part of a screenshot, and the partial screenshot includes a text message. For example, in the image data testing method described in claim 7, wherein the captured image data is a part of a screenshot, and the partial screenshot includes a specific scene. The image data testing method of claim 7, wherein the image testing system further comprises a switch having at least one connection port, the method further comprising: when the display card has a plurality of I supporting different display interfaces. Each of the I/O ports of the display card is coupled to each of the corresponding port ports; and the switcher switches the I/O port to output the corresponding I/O port. Image data.