Electronic apparatus and method of extracting still images

Patent metadata

Field	Value
Publication number	US-2016366334-A1
Application number	US-201615176936-A
Country	US
Kind code	A1
Filing date	Jun 8, 2016
Priority date	Jun 10, 2015
Publication date	Dec 15, 2016
Grant date	—

Abstract

A method and an electronic device are provided for generating a still image from a video file. The electronic device includes an image sensor, a display, and a controller configured to generate a video file from an image signal input through the image sensor, assign frame characteristics to each frame included in the video file, selectively display at least one of the frames on the display, receive a selection of a frame among the displayed at least one of the frames, and generate a still image from the selected frame.

First claim

What is claimed is:

1 . An electronic device comprising:
an image sensor; a display; and a controller configured to generate a video file from an image signal input through the image sensor,
assign frame characteristics to each frame included in the video file,
selectively display at least one of the frames on the display,
receive a selection of a frame among the displayed at least one of the frames, and
generate a still image from the selected frame.

2 . The electronic device of claim 1 , wherein the controller comprises a scene analysis engine (SAE) configured to analyze the frame characteristics, and
wherein the frame characteristics comprise at least one of:
a color change,
a brightness change,
object detection,
object recognition, and
a motion analysis result.

3 . The electronic device of claim 2 , wherein the SAE comprises:
a first SAE configured to analyze the frame characteristics while generating the video file; and a second SAE configured to analyze the frame characteristics after the video file is generated.

4 . The electronic device of claim 1 , wherein the controller comprises a scene recommendation engine (SRE) configured to
assign a priority to the frame characteristics assigned to each frame, and selectively display the at least one of the frames based on the assigned priorities.

5 . The electronic device of claim 1 , wherein the controller is further configured to
receive the frame characteristics from an external device, and assign the received frame characteristics to a frame included in the video file.

6 . The electronic device of claim 1 , wherein the controller is further configured to
set a shutter speed higher than a reference shutter speed while generating the video file, set a sensitivity higher than a reference sensitivity, and perform quality correction for cancelling noise while generating the still image.

7 . The electronic device of claim 1 , wherein the controller is further configured to store, in the video file, information corresponding to a position of the selected frame from which the still image is generated among the frames included in the video file.

8 . A method of controlling an electronic device, the method comprising:
generating a video file using an image signal input through an image sensor; assigning frame characteristics to each frame included in the video file; selectively displaying at least one of the frames; receiving a selection of a frame among the displayed at least one of the frames; and generating a still image from the selected frame.

9 . The method of claim 8 , wherein assigning the frame characteristics comprises analyzing the frame characteristics,
wherein the analyzed frame characteristics comprise at least one of:
a color change,
a brightness change,
object detection,
object recognition, and
a motion analysis result.

10 . The method of claim 9 , wherein analyzing the frame characteristics comprises:
analyzing the frame characteristics while generating the video file; and analyzing the frame characteristics after generating the video file.

11 . The method of claim 8 , further comprising:
assigning a priority to the frame characteristics assigned to each frame; and selectively displaying the at least one of the frames on based on assigned priorities.

12 . The method of claim 8 , wherein assigning the frame characteristics comprises:
receiving the frame characteristics from an external device; and assigning the received frame characteristics to a frame included in the video file.

13 . The method of claim 8 , further comprising:
setting a shutter speed higher than a reference shutter speed while generating the video file; setting a sensitivity higher than a reference sensitivity; and cancelling noise while generating the still image.

14 . The method of claim 8 , further comprising storing, in the video file, information corresponding to a position of the selected frame from which the still image is generated among the frames included in the video file.

15 . An electronic device comprising:
an image sensor; a display; and a controller configured to
generate a video file from an image signal input through the image sensor,
enter a photographing mode for generating a still image from the video file,
selectively display at least one of the frames included in the video file on the display,
receive a selection of a frame among the displayed at least one of the frames, and
generate a still image from the selected frame.

16 . The electronic device of claim 15 , wherein the controller comprises a scene analysis engine (SAE) configured to analyze the frame characteristics, and
wherein the frame characteristics comprise at least one of:
color change analysis,
brightness change analysis,
object detection,
object recognition, and
motion analysis.

17 . The electronic device of claim 16 , wherein the SAE comprises:
a first SAE configured to analyze the frame characteristics while generating the video file; and a second SAE configured to analyze the frame characteristics after the video file is generated.

18 . The electronic device of claim 15 , wherein the controller comprises a scene recommendation engine (SRE) configured to
assign a priority to the frame characteristics, and selectively display at least one of the frames on the display based on assigned priorities.

19 . The electronic device of claim 15 , wherein the controller is further configured to
receive the frame characteristics from an external device, and assign the received frame characteristics to a frame included in the video file.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Kim Goun-Young
• Narayanan Karthik
• Shah Tapan
• Bandlamudi Vamsee Kalyan
• Lee Yun-Mi

Classifications

• G06F16/783 Primary

  using metadata automatically derived from the content · CPC title

• H04N23/6811

  based on the image signal · CPC title

• H04N23/667

  Camera operation mode switching, e.g. between still and video, sport and normal or high- and low-resolution modes · CPC title

• H04N23/611

  where the recognised objects include parts of the human body · CPC title

• H04N23/683

  performed by a processor, e.g. controlling the readout of an image memory · CPC title