CN111460220A - Method for making word flash card video and video product - Google Patents

Abstract

The invention provides a method and a video product for making a flashcard video of a word. By acquiring a target segment and a target word selected from a multimedia segment, a picture that can best express the meaning of the target word is obtained from a gallery, and the voice of the target word is separated. Audio, arrange the pictures in the PPT empty document in the order of the target segments, and generate the desired video that pops up the pictures in sequence and is equipped with voice and audio respectively. The video produced by the method of the present invention satisfies the needs of fast flash cards and a large vocabulary to activate the right brain to quickly enter the learning state, and each picture corresponds to the voice, so that students can memorize the pronunciation when viewing the picture, and are selected from multimedia clips, The words are linked with their meanings, so that children can finish memorizing and understanding the words under the condition of concentration, it is easy to understand the content when the target segment is played again, and the learning interest and learning effect are greatly improved.

Description

A production method and video product of a word flash card video

technical field

The invention relates to the technical field of educational tools for Internet education, in particular to a method and a video product for making a flashcard video of a word.

Background technique

As parents pay more and more attention to their children's English learning, many children begin to learn foreign languages from young children. The common learning method is that teachers teach children in the classroom, teach children to look at pictures and speak English, sing English songs, teach English greetings, etc. , Although children speak and sing English, they do not understand the meaning of sentences except for common single words such as animals and food, and they cannot arouse interest. Moreover, because children cannot concentrate for a long time, children often appear The phenomenon of doing small movements while speaking English, due to the unscientific teaching method, the children did not really learn English, but only memorized English formally. Due to the lack of a sense of achievement in learning, they could not arouse interest in learning English.

SUMMARY OF THE INVENTION

In order to solve the above problems, the present invention provides a method and a video product for making a flashcard video of a word. The electronic device obtains the target segment selected from the multimedia segment and selects the target word that can indicate the meaning with an image in the target segment. Find the picture containing the image that can best express the meaning of the target word from the gallery, and separate the speech audio of the target word from the speech stream of the target segment. According to the target segment, arrange the pictures in sequence in the In the PPT document, match the voice and audio respectively, and generate the desired video that pops up the pictures in turn and is equipped with the voice and audio respectively. The desired video is a word flashcard video with each desired picture playing time of one second. The video produced by the method of the invention is scientific and reasonable, and meets the needs of flash cards and a large vocabulary to activate the right brain to enter the learning state quickly, and each picture corresponds to the voice, so that students can memorize the pronunciation when watching the pictures, and the flash cards of words The video is the target segment, which connects the words with the meaning, and by watching the pictures, the children complete the memorization and understanding of the words under the condition of concentration, and it is easy to understand the content when the said target segment is played again, learning interest and learning The effect has been greatly improved.

The specific technical scheme provided by the present invention is as follows:

A method for producing a word flash card video, comprising the following steps:

Step 1: obtain the target segment selected by the user in the multimedia segment;

Step 2: successively obtain the target words in the target segment;

Preferably, step 2-1 is further included: selecting words in the target segment that can express meaning by images as target words.

Step 3: respectively obtaining desired pictures expressing the meaning of the target word;

Preferably, it also includes step 3-1: before acquiring the desired picture, it also includes:

A picture matching the target word is acquired from the electronic device and/or the cloud database, and the picture is used as the primary selection picture.

Preferably, it also includes step 3-2:

Obtain the target image selected and marked by the user in the primary selection picture, and set the minimum threshold A of the proportion of the target image in the total image of the picture and the minimum threshold B of the similarity between the image in the picture and the target image;

Preferably, it also includes steps 3-3:

Extract multiple feature points of the image in the picture and compare it with the target image. When the similarity is greater than or equal to B, the image is a similar image, and the proportion of the similar image in the total image of the picture is calculated. When If the ratio is greater than or equal to A, the picture is a candidate picture corresponding to the target word, and the candidate picture with the best similarity and ratio of similar images is selected from the candidate pictures as the desired picture; All the desired pictures corresponding to the target words are marked with first difference information respectively.

Step 4: respectively obtain the voice audio of the target word;

Preferably, step 4 further includes:

The speech stream in the multimedia segment is processed, the speech audio of the target word is separated, and the second difference information is sequentially marked for the target word.

Step 5: According to the sequence of the target segments, generate a desired video that pops up the desired pictures in sequence and is provided with voice and audio respectively.

Preferably, a video generation method included in step 5:

Open the PPT production software, arrange the fifty desired pictures in the blank picture frame in sequence according to the sequence of the target segments, and match the corresponding voice and audio respectively, and switch the desired picture on one page in one second. Convert the speed to generate a desired video that pops up the desired picture in sequence and contains voice and audio.

Preferably, another video generation method included in step 5:

Start the video production software, arrange the fifty segments of the voice and audio on the audio track in sequence according to the sequence of the target segments, and match the corresponding desired pictures respectively, and switch one page of the desired pictures in one second. speed, and generate a desired video that pops up the desired picture in sequence and contains voice and audio.

Preferably, the interval time between the adjacent speech audios is not more than 0.3 seconds.

It should be noted that, in the present invention, the user selects the target segment in the multimedia segment, and selects the target word that can express the meaning clearly with the picture in the target segment, rather than randomly selecting the word, because the target segment is a A dialogue with a storyline, or character description, or scene description, etc., is easy to understand and has a sense of substitution when the video is played, which can easily stimulate children's interest, enhance the learning effect, and avoid boring and boring learning English.

It should be noted that each word matches a picture, and the proportion of the target image in each picture and the similarity between the image and the target image meet the set threshold to be selected as an alternative picture, and then from the alternative picture. The best picture is selected from the pictures as the desired picture corresponding to the target word. The desired image target image selected according to this step is prominent, has no complex background, and is not easy to cause ambiguity, which is in line with the children's ability to distinguish, so that the children can see the video at a glance and enhance their memory at the same time.

It should be noted that the voice audio of the target word is separated from the voice stream in the multimedia clip to match the corresponding expected picture, which can ensure accurate pronunciation and effectively avoid the difficulty in correcting later learning due to inaccurate pronunciation in childhood. confusion.

It should be noted that the first difference information for the desired picture mark includes positioning matching information such as name, sequence, and time; the second difference information for the voice audio mark includes positioning matching information such as name, sequence, and time.

It should be noted that selecting the target word to generate a video with a playback rate of one picture per second not only meets the needs of flash cards and a large vocabulary to activate the right brain to quickly enter the learning state, and the video containing about 1 minute is also suitable for children. when they cannot concentrate for long periods of time. The playing interval between adjacent pictures is no more than 0.3 seconds, so that the pronunciation interval between adjacent words is short, ensuring the coherence of the pronunciation of the whole video when playing, and meeting the requirements of children's learning effect.

It should be noted that after a period of learning, the children understood the meaning of the words and videos. When they played or watched the original multimedia clips again, the children were very interested and had a sense of accomplishment. They could learn English in the scene and learn The effect is very good.

The invention also discloses a video product that uses any of the above-mentioned production methods to obtain a flash card containing a word. Video with voice audio.

The beneficial effects of the present invention are:

The present invention provides a method and a video product for making a flashcard video of a word. According to the method of the present invention, a scientific and reasonable video is produced. Switch the conversion speed of the desired picture on one page in one second, and generate a word flashcard video that pops up pictures in sequence and contains voice and audio. It not only meets the needs of flash cards and a large vocabulary to activate the right brain to quickly enter the learning state, but also contains a storyline, which has a sense of substitution, which can easily stimulate children's interest, enhance the learning effect, and avoid boring and boring learning English. .

Description of drawings

1 is a flowchart of video production provided by an embodiment of the present invention;

2 is a flowchart of selecting a desired picture provided by an embodiment of the present invention;

3 is a flow chart of voice and audio production provided by an embodiment of the present invention;

Fig. 4 is a kind of flow chart of generating word flashcard video provided by the embodiment of the present invention;

5 is another flowchart of generating a word flash card video provided by an embodiment of the present invention;

Among them: 1-electronic equipment; 10-PPT template providing module; 11-extraction module; 12-setting module; 13-display screen; 14-first communication module;

2-server; 20-processor; 21-memory; 22-second communication module;

200-graphics processing module; 201-audio processing module; 202-video production module.

Detailed ways

As used in the specification and claims, certain terms are used to refer to particular components. It should be understood by those skilled in the art that hardware manufacturers may refer to the same component by different nouns. The description and claims do not use the difference in name as a way to distinguish components, but use the difference in function of the components as a criterion for distinguishing. As mentioned in the whole specification and claims, "comprising" is an open-ended term, so it should be interpreted as "including but not limited to"; in addition, the terms "first" and "second" are only used for description purpose, and cannot be understood as indicating or implying relative importance or implying the number of technical features indicated. Subsequent descriptions in the specification are preferred embodiments for implementing the present application. However, the descriptions are for the purpose of illustrating the general principles of the present application and are not intended to limit the scope of the present application. The scope of protection of this application should be determined by the appended claims.

As shown in Figure 1-Figure 4:

The first embodiment of the present invention:

The present invention provides a method for making a video of a word flash card, which is applied to the electronic device 1 and includes the following steps:

Step 1: the processor 20 of the server 2 obtains the target segment selected by the user through the extraction module 11 in the multimedia segment;

Step 2: The user selects fifty target words that can indicate the meaning with images in the target segment, and transmits the fifty target words to the server 2 through the first communication module 14, stores them in the memory 21, and the processor 20 The fifty target words are acquired from the memory 21 .

Step 3: the graphics processing module 200 searches for a picture containing an image matching the target word, obtains the picture, and selects a desired picture therefrom;

Preferably, before acquiring the desired picture, the method further includes:

It also includes step 3-1: the graphics processing module 200 identifies a picture containing an image matching the target image from the electronic device and/or the cloud database, and obtains the picture type matched with the target word respectively;

The graphics processing module 200 uses various types of pictures as the primary selection pictures of the target word.

Preferably, it also includes step 3-2:

The user selects an ideal picture in the primary selection picture, and marks the target image on the picture, including manually drawing a closed area; Than the minimum threshold value A, and the minimum threshold value B of the similarity between the image in the picture and the target image, and transmit the target image, the threshold value A, and the threshold value B to the server 2 through the first communication module 14, and store them in the memory 21. The processing module 200 obtains the information from the memory 21 .

Preferably, it also includes steps 3-3:

The graphics processing module 200 extracts multiple feature points of the image in the picture and compares them with the feature points of the target image. When the similarity is greater than or equal to B, the image is a similar image, and the graphics processing module 200 calculates the The proportion of similar images, when the proportion of the similar images in the total image of the picture is ≥ A, then the picture is an alternative picture corresponding to the target word; the graphics processing module 200 selects the alternative picture from the The candidate pictures with the best similarity and ratio of similar images are selected as the desired pictures; the desired pictures corresponding to all the target words are marked with first difference information respectively.

Step 4: the audio processing module 201 separates the speech audio corresponding to the target word from the multimedia segment, and obtains the speech audio of the target word;

Preferably, step 4 further includes:

The audio processing module 201 processes the speech stream in the multimedia segment, separates the speech audio of the target word respectively, and sequentially marks the second difference information according to the sequence of the target words.

Step 5: A video generation method:

The user provides PPT files with fifty blank picture frames through the PPT template providing module 10. According to the sequence of the target segments, the video production module 202 sequentially arranges the fifty desired pictures in the blank picture frames, and matches them respectively. For the voice and audio, the conversion speed of switching one page of the desired picture in one second generates a word flash card video that pops up the desired picture in sequence and contains the voice and audio.

Preferably, the interval time between the adjacent speech audios is not more than 0.3 seconds.

The word flashcard video is a video with a total duration of about 1 minute.

The generated word flash card video is stored in the memory 21 and sent to the display screen 13 of the terminal device 1 through the second communication module 22 for playback.

It should be noted that, in the present invention, the user selects the target segment in the multimedia segment, and selects the target word that can indicate the meaning with the image in the target segment, because the target segment is a dialogue with a storyline, or a character description. , or scene description, etc., it is easy to understand and has a sense of substitution when the video is played, it is easy to stimulate children's interest, enhance the learning effect, and avoid boring and boring learning English.

It should be noted that each word matches a picture, and the proportion of the target image in each picture and the similarity between the image and the target image meet the set threshold to be selected as an alternative picture, and then from the alternative picture. The best picture is selected from the pictures as the desired picture corresponding to the target word. The desired image target image selected according to this step is prominent, has no complex background, and is not easy to cause ambiguity, which is in line with the children's ability to distinguish, so that the children can see the video at a glance and enhance their memory at the same time.

It should be noted that the voice audio of the target word is separated from the voice stream in the multimedia clip to match the corresponding expected picture, which can ensure accurate pronunciation and effectively avoid the difficulty in correcting later learning due to inaccurate pronunciation in childhood. confusion.

It should be noted that the first difference information for the desired picture mark includes positioning matching information such as name, sequence, and time; the second difference information for the voice audio mark includes positioning matching information such as name, sequence, and time.

It should be noted that selecting fifty target words to generate a video with a playback rate of one picture per second not only meets the needs of fast flash cards and a large vocabulary to activate the right brain to quickly enter the learning state, but also meets the needs of children. Inability to concentrate for long periods of time. The playback interval between adjacent pictures should not exceed 0.3 seconds, so that the pronunciation interval between adjacent words is short, and the sound is coherent during the entire video playback. The designed playback time is about 1 minute, which is suitable for children to learn effect requirements.

As shown in Figure 1, Figure 2, Figure 3, and Figure 5:

Another embodiment provided by the present invention:

The present invention provides a method for making a video of a word flash card, which is applied to the electronic device 1 and includes the following steps:

Step 1: the processor 20 of the server 2 obtains the target segment selected by the user through the extraction module 11 in the multimedia segment;

Step 2: The user selects fifty target words that can indicate the meaning with images in the target segment, and transmits the fifty target words to the server 2 through the first communication module 14, stores them in the memory 21, and the processor 20 The fifty target words are acquired from the memory 21 .

Step 3: the graphics processing module 200 searches for a picture containing an image matching the target word, obtains the picture, and selects a desired picture therefrom;

Preferably, before acquiring the desired picture, the method further includes:

It also includes step 3-1: the graphics processing module 200 identifies a picture containing an image matching the target image from the electronic device and/or the cloud database, and obtains the picture type matched with the target word respectively;

The graphics processing module 200 uses various types of pictures as the primary selection pictures of the target word.

Preferably, it also includes step 3-2:

The user selects an ideal picture in the primary selection picture, and marks the target image on the picture, including manually drawing a closed area; Than the minimum threshold value A, and the minimum threshold value B of the similarity between the image in the picture and the target image, and transmit the target image, the threshold value A, and the threshold value B to the server 2 through the first communication module 14, and store them in the memory 21. The processing module 200 obtains the information from the memory 21 .

Preferably, it also includes steps 3-3:

The graphics processing module 200 extracts multiple feature points of the image in the picture and compares them with the feature points of the target image. When the similarity is greater than or equal to B, the image is a similar image, and the graphics processing module 200 calculates the The proportion of similar images, when the proportion of the similar images in the total image of the picture is ≥ A, then the picture is an alternative picture corresponding to the target word; the graphics processing module 200 selects the alternative picture from the The candidate pictures with the best similarity and ratio of similar images are selected as the desired pictures; the desired pictures corresponding to all the target words are marked with first difference information respectively.

Step 4: the audio processing module 201 separates the speech audio corresponding to the target word from the multimedia segment, and obtains the speech audio of the target word;

Preferably, step 4 further includes:

The audio processing module 201 processes the speech stream in the multimedia segment, separates the speech audio of the target word respectively, and sequentially marks the second difference information according to the sequence of the target words.

Step 5: A way to generate a video:

Open the video production software, according to the target segment, the video production module 202 sequentially arranges fifty segments of the audio and audio on the audio track, and matches the corresponding desired pictures respectively, and switches one page of the desired pictures in one second The conversion speed is higher, and a word flash card video that pops up the desired picture in turn and contains voice and audio is generated.

Preferably, the interval time between the adjacent speech audios is not more than 0.3 seconds.

The word flashcard video is a video with a total duration of about 1 minute.

The generated word flash card video is stored in the memory 21 and sent to the display screen 13 of the terminal device 1 through the second communication module 22 for playback.

It should be noted that the user of the present invention selects the target segment in the multimedia segment, and selects the target word that can indicate the meaning with the image in the target segment, rather than randomly selecting the word, because the target segment has a storyline. A dialogue, character description, or scene description, etc., is easy to understand and has a sense of substitution when the video is played, which can easily stimulate children's interest, enhance the learning effect, and avoid boring and boring learning English.

It should be noted that each word matches a picture, and the proportion of the target image in each picture and the similarity between the image and the target image meet the set threshold to be selected as an alternative picture, and then from the alternative picture. The best picture is selected from the pictures as the desired picture corresponding to the target word. The desired image target image selected according to this step is prominent, has no complex background, and is not easy to cause ambiguity, which is in line with the children's ability to distinguish, so that the children can see the video at a glance and enhance their memory at the same time.

It should be noted that the voice audio of the target word is separated from the voice stream in the multimedia clip to match the corresponding expected picture, which can ensure accurate pronunciation and effectively avoid the difficulty in correcting later learning due to inaccurate pronunciation in childhood. confusion.

It should be noted that the first difference information for the desired picture mark includes positioning matching information such as name, sequence, and time; the second difference information for the voice audio mark includes positioning matching information such as name, sequence, and time.

It should be noted that selecting fifty target words to generate a video with a playback rate of one picture per second not only meets the needs of fast flash cards and a large vocabulary to activate the right brain to quickly enter the learning state, but also meets the needs of children. Inability to concentrate for long periods of time. The playing interval between adjacent pictures is not more than 0.3 seconds, so that the pronunciation interval between adjacent words is short, and the playing time of the entire video is about 1 minute, which meets the requirements of learning efficiency.

The present invention also discloses another embodiment:

A video of a word flash card, including a video containing fifty pictures, the conversion speed of switching one page of the desired pictures in one second, and fifty pictures are popped up in turn, and the total playing time of voice and audio is about one minute. Word flashcard video.

Several preferred embodiments of the present application have been described above, but as mentioned above, it should be understood that the present application is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and circumstances, and can be altered within the contemplation of the application described herein, by virtue of the above teachings or skill or knowledge in the relevant field. However, modifications and changes made by those skilled in the art do not depart from the spirit and scope of the present application, and should all fall within the protection scope of the appended claims of the present application.

Claims (10)

1. A method for making word flash card video is characterized in that: the method comprises the following steps:

step 1: acquiring a target fragment selected by a user from multimedia fragments;

step 2: sequentially acquiring target words in the target segment;

and step 3: respectively acquiring expected pictures expressing the meaning of the target words;

and 4, step 4: respectively acquiring voice audios of the target words;

and 5: and generating expected videos which pop up the expected pictures in sequence and are respectively provided with voice audios according to the sequence of the target fragments.

2. The method for making word flash card video according to claim 1, wherein:

further comprising the step 2-1: and screening the target segment to take words with clear meaning of the image as target words.

3. The method for making word flash card video according to claim 2, characterized in that:

further comprising the step 3-1: before the desired picture is obtained, the method further comprises the following steps:

and acquiring a picture matched with the target word from the electronic equipment and/or a cloud database, wherein the picture is used as a primary selection picture.

4. The method for making word flash card video according to claim 3, wherein:

further comprising the step 3-2:

and acquiring a target image selected and marked in the primarily selected picture by the user, and setting a minimum threshold A of the target image in the total image of the picture and a minimum threshold B of the similarity between the image in the picture and the target image.

5. The method for making word flash card video according to claim 4, wherein:

further comprising the steps of 3-3:

extracting a plurality of characteristic points of an image in a picture, comparing the characteristic points with the target image, when the similarity is larger than or equal to B, the image is a similar image, calculating the proportion of the similar image in the total image of the picture, when the proportion is larger than or equal to A, the picture is an alternative picture corresponding to the target word, and selecting the alternative picture with the best similarity and proportion of the similar image as an expected picture from the alternative pictures; and marking first distinguishing information for the expected pictures corresponding to all the target words respectively.

6. The method for making word flash card video according to claim 5, wherein:

step 4 also includes:

and processing the voice stream in the multimedia segment, separating the voice audio of the target word, and sequentially marking second distinguishing information on the target word.

7. The method for making word flash card video according to claim 6, wherein: step 5 comprises a video generation method:

and opening PPT making software, sequentially arranging fifty expected pictures in a blank picture frame according to the target segment sequence, respectively matching the corresponding voice audios, switching the conversion speed of one page of the expected pictures in one second, and generating an expected video which sequentially pops up the expected pictures and contains the voice audios.

8. The method for making word flash card video according to claim 6, wherein: the other video generation mode included in the step 5 is as follows:

and starting video production software, arranging fifty segments of voice audios on an audio track in sequence according to the sequence of the target segments, respectively matching the corresponding expected pictures, switching the conversion speed of one page of the expected pictures in one second, and generating the expected video which pops up the expected pictures in sequence and contains the voice audios.

9. The method for making the word flash card video according to any one of claims 7 or 8, wherein:

the interval duration between adjacent voice audios does not exceed 0.3 second.

10. Video product containing word flash cards obtained using the production method according to any one of claims 1 to 9, characterised in that the video switches the speed of conversion of one page of said desired pictures in one second, with the video comprising fifty desired pictures and provided with speech audio being ejected in sequence.

Images