Method of video search in an electronic device

A method of video search based on a user query in an electronic device, the method comprising:

• receiving, by the electronic device, a search query from a user for a video moment in a plurality of videos in the electronic device;
• extracting, by the electronic device, semantic vector using natural language processing (NLP) from the search query;
• mapping, by the electronic device, the extracted semantic vector from the search query with at least one visual moment vector stored in a feature vector database of the electronic device;
• determining, by the electronic device, at least one moment tag and at least one time stamp associated with the mapped at least one visual moment vector;
• and
• extracting, by the electronic device, a video moment corresponding to the query based on the least one moment tag and at least one time stamp from a video database of the electronic device,
• wherein the feature vector database is generated from the video database in an offline mode.

A method of generating a feature vector database for a plurality of videos in an offline mode in an electronic device, the method comprising:

• extracting, by the electronic device, a plurality of visual feature vectors comprising visual features from a plurality of videos stored in a video database of the electronic device, wherein each visual feature corresponds to a pre-defined moment;
• generating, by the electronic device, a temporal map of the plurality of visual feature vectors;
• generating, by the electronic device, at least one video tag and at least one time stamp associated with the visual feature vector for each visual feature in the plurality of visual feature vectors;
• and
• storing, by the electronic device, the at least one video tag, the visual feature vectors, and the at least one time stamp for each visual feature in the feature vector database.

An electronic device for performing video search, the electronic device comprising:

• a memory;
• and
• a processor configured to:
• extract a plurality of visual features vectors comprising visual features from a plurality of videos stored in a video database of the electronic device, wherein each visual feature corresponds to a pre-defined moment in an offline mode,
• generate a temporal map of the plurality of visual feature vectors in an offline mode,
• generate at least one video tag and at least one time stamp associated with the visual feature vector for each visual feature in the plurality of visual feature vectors in an offline mode,
• store the at least one videos tag, the visual feature vectors, and the at least one time stamp for each visual feature in a feature vector database in an offline mode,
• receive a search query from a user for a specific moment in a plurality of videos in the electronic device,
• run the search query on the feature vector database, and
• control to display the visual features associated with the specific moments from the plurality of videos based on the at least one video tag, the plurality of feature vectors, and the at least one time stamp in the feature vector database.