IMAGE DISPLAY DEVICE, ENCODING METHOD, AND COMPUTER-READABLE RECORDING MEDIUM

• US 20150318021A1
• Filed: 07/13/2015
• Published: 11/05/2015
• Est. Priority Date: 09/09/2013
• Status: Abandoned Application

• Current Assignee: Olympus Corporation
• Original Assignee: Olympus Corporation
• Inventors: NISHIMURA, Norio
• Application Number:
  US14/797,678
• Publication Number:
  US 20150318021A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 1/00042 for mechanical operation
• CPC Class Codes: A61B 1/00045 Display arrangement
• CPC Class Codes: A61B 1/041 Capsule endoscopes for imaging
• CPC Class Codes: G11B 27/3027 used signal is digitally coded
• CPC Class Codes: G11B 27/34 Indicating arrangements indicating means incorporated in magazine or cassette G11B23/046 and G11B23/0875; indicating measured values in general G01D
• CPC Class Codes: H04N 19/107 between spatial and temporal predictive coding, e.g. picture refresh
• CPC Class Codes: H04N 19/162 User input
• CPC Class Codes: H04N 19/172 the region being a picture, frame or field
• CPC Class Codes: H04N 19/46 Embedding additional information in the video signal during the compression process H04N19/517, H04N19/68, H04N19/70 take precedence
• CPC Class Codes: H04N 19/58 Motion compensation with long-term prediction, i.e. the reference frame for a current frame not being the temporally closest one H04N19/23 takes precedence
• CPC Class Codes: H04N 5/772 the recording apparatus and the television camera being placed in the same enclosure
• CPC Class Codes: H04N 5/9205 the additional signal being at least another television signal
• CPC Class Codes: H04N 5/93 Regeneration of the television signal or of selected parts thereof
• CPC Class Codes: H04N 9/8042 involving data reduction
• CPC Class Codes: H04N 9/8227 the additional signal being at least another television signal

Abstract

An image display device performs a playback operation to sequentially display multiple images. The image display device includes: a display unit; a relating unit that relates multiple playback positions for starting the playback operation to images corresponding in number to the number of the multiple playback positions among the multiple images; and an encoding unit that compresses and encodes the multiple images by using, as key frames, the images related to the multiple playback positions among the multiple images and by using a correlation between at least two of images among the multiple images.

Claims

1. An image display device that performs a playback operation to sequentially display multiple images, the image display device comprising:

a display unit;

a relating unit that relates multiple playback positions for starting the playback operation to images corresponding in number to the number of the multiple playback positions among the multiple images; and

an encoding unit that compresses and encodes the multiple images by using, as key frames, the images related to the multiple playback positions among the multiple images and by using a correlation between at least two of images among the multiple images.

2. The image display device according to claim 1, wherein the relating unit relates, based on the number of the multiple playback positions and entire-volume information that indicates a volume of the multiple images in entirety, the multiple playback positions to the images corresponding in number to the number of the multiple playback positions among the multiple images.

3. The image display device according to claim 2, wherein

the entire-volume information is the number of frames of the multiple images in entirety, and

the relating unit calculates an index value Kp by using Kp=(p·

(M−

1))(N−

1), where the number of frames is M, the number of the multiple playback positions is N, and an index value that indicates an image related to the p (p=0, 1, . . . , N−

1)th playback position is Kp, and relates an image with a frame number that is closest to the index value Kp to the pth playback position.

4. The image display device according to claim 2, wherein

the multiple images are images that are acquired in chronological order and that are associated with an elapsed time after corresponding acquisition is started,

the entire-volume information is a total time after the acquisition of the multiple images is started until terminated, and

the relating unit calculates an index value Kp′

by using Kp′

=(p·

M′

)(N−

1), where the total time is M′

, the number of the multiple playback positions is N, and the index value that indicates an image related to the p (p=0, 1, . . . , N−

1)th playback position is Kp′

, and relates an image associated with the elapsed time that is closest to the index value Kp′

to the pth playback position.

5. The image display device according to claim 1, further comprising:

a decoding unit that decodes the multiple images compressed and encoded by the encoding unit; and

a display controller that causes the display unit to sequentially display the multiple images decoded by the decoding unit and a bar that indicates a volume of the multiple images in entirety, wherein

the number of the multiple playback positions corresponds in number to the number of pixels in a length direction of the bar displayed on the display unit.

6. The image display device according to claim 5, wherein

the display controller causes the display unit to display a playback screen that includes at least one of the multiple images and the bar and is capable of changing a resolution of the playback screen to any one of multiple resolutions,

the image display device includes a memory unit that stores the number of the multiple playback positions that correspond to each of the multiple resolutions, and

the relating unit reads, from the memory unit, the number of the multiple playback positions that correspond to the resolution of the playback screen displayed on the display unit and relates the multiple playback positions to the images corresponding in number to the number of the multiple playback positions among the multiple images by using the number of the multiple playback positions read from the memory unit.

7. An encoding method executed by an image display device that performs a playback operation to sequentially display multiple images, the encoding method comprising:

relating multiple playback positions for starting the playback operation to images corresponding in number to the number of the multiple playback positions among the multiple images; and

compressing and encoding the multiple images by using, as key frames, the images related to the multiple playback positions among the multiple images and by using a correlation between at least two of images among the multiple images.

8. A non-transitory computer-readable recording medium having an executable program recorded therein, the program instructing a processor included in an image display device that performs a playback operation to sequentially display multiple images, to execute:

relating multiple playback positions for starting the playback operation to images corresponding in number to the number of the multiple playback positions among the multiple images; and

compressing and encoding the multiple images by using, as key frames, the images related to the multiple playback positions among the multiple images and by using a correlation between at least two of images among the multiple images.