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Recording medium capable of recording progressive pictures at a high frame rate, reproducing device, recording device, reproducing method, and recording method

A reproduction device and recording method technology, applied in data recording, recording signal processing, recording information storage, etc., can solve the problems of heavy burden on video decoders, confusion of viewers, and inability to reproduce, so as to improve the value of materials and promote development and activation effects

Inactive Publication Date: 2017-04-12
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If a video stream composed of high frame rate progressive pictures is connected to a playback device that does not support high frame rate playback, the burden on the video decoder will be too large, and playback may not be possible at all, or even if playback is possible, the display may be lost. Inappropriate video of the frame, etc., causing confusion to the viewer
Because of the danger of confusing viewers like this, there is a deep-rooted cautious view that high frame rate progressive images should not be easily introduced into the production of film productions.
This has become a major obstacle to the high frame rate of video

Method used

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  • Recording medium capable of recording progressive pictures at a high frame rate, reproducing device, recording device, reproducing method, and recording method
  • Recording medium capable of recording progressive pictures at a high frame rate, reproducing device, recording device, reproducing method, and recording method
  • Recording medium capable of recording progressive pictures at a high frame rate, reproducing device, recording device, reproducing method, and recording method

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no. 1 Embodiment approach ）

[0058] The purpose of the first embodiment is to solve the following problem (problem 1) faced by those skilled in the art in the case of realizing progressive picture reproduction at a frame rate of 60 Hz, which is one of the optional frame rate video properties. .

[0059] Problem 1: With the advancement of imaging elements and the improvement of the processing capability of image processing LSI in recent years, the above-mentioned progressive image shooting at frame rates exceeding 24Hz, 23.976 (24000 / 100001) Hz or 25Hz has become a reality .

[0060] However, when a video stream composed of high-frame-rate progressive pictures is recorded on a recording medium and used for distributing movies, etc., the communication between player devices that have already circulated on the market and are popular among households Compatibility becomes an issue.

[0061] Consider a case where a recording medium on which a video stream composed of high frame rate progressive pictures is r...

no. 2 Embodiment approach ）

[0124] The purpose of this embodiment is to provide a technical supplement to the problem 1 solved by the first embodiment. Specifically, the following problem 2 is solved.

[0125] Issue 2: For titles other than the above-mentioned first-play titles or top menu titles, even if the titles including 60P are played back with a player device that does not support 60P, playback may not be possible at all or frame drop may occur even if playback is possible Therefore, progressive picture reproduction or interlaced picture reproduction using a non-60P reproduction path at a frame rate of 24 Hz cannot be performed with the quality expected by viewers.

[0126] The purpose of this embodiment is to live up to the viewer's expectations for a 60P video stream.

[0127] (Solution 1 of Problem 2)

[0128] In order to solve the problem 2, the following improvement is made to the said problem solving means.

[0129] In the case where the problem is solved by implementing the aspect of the...

no. 3 Embodiment approach ）

[0152] This embodiment is to solve a new problem caused by the direct search of titles. The title direct search refers to a function in which the viewer specifies the number of the title to be played back directly to the player device through a device such as a remote controller, and starts playback of the title of the specified number without going through the top menu title or the like. Regardless of the presence or absence of the top menu title, it shifts to the title of the input title number, and starts to reproduce progressive pictures at 60PHz. Therefore, at this time, if the viewer uses a player device that does not support 60P, even if the 60Hz progressive picture reproduction may also start if the device cannot handle it. In this case, the problem pointed out as Problem 2 arises.

[0153] The purpose of this embodiment is to make up for the defect that the quality assurance is damaged when the user searches directly using the title.

[0154] In order to avoid this,...

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Abstract

A video stream, a control program, and an index table are recorded on the recording medium. Among the video streams, there are video streams whose pictures are progressive pictures and video streams whose pictures are interlaced pictures. Among the video streams composed of progressive pictures, there are video streams whose frame rate is mandatory and whose frame rate is optional. Video stream at selected frame rate. The index table indicates the correspondence between multiple titles and control programs. The control program corresponding to the first play title and the top menu title in the title selects the playback path of the picture as a progressive picture with an optional frame rate from the playback object Exclude and instruct playback of other playback paths.

Description

technical field [0001] The present invention belongs to the technical field of image recording technology. Background technique [0002] In the above technical fields, frame rate and resolution are widely known as parameters of left and right image quality. The frame rate is a parameter indicating the number of pictures that should be displayed per second. The resolution indicates the number of vertical pixels and horizontal pixels constituting the image. To give a specific example, a DVD has an SD (Standard Definition) image quality and a resolution of 720×480, while a Blu-ray (Blu-ray) disc has an HD (High Definition) image quality and a resolution of 1920×1080. As a result, high-quality video can be stored on the Blu-ray disc. [0003] prior art literature [0004] patent documents [0005] Patent Document 1: JP-A-2010-232885 [0006] Summary of the invention [0007] The problem to be solved by the invention [0008] Here, in a video stream that can be recorded i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/91G11B27/00G11B27/10
CPCG11B20/10527G11B27/105G11B2020/10592G11B2020/10935G11B2220/2541H04N5/76H04N5/85H04N9/8042H04N9/8205H04N9/8211H04N9/8227H04N9/8233G11B27/00G11B27/10H04N5/91H04N5/93
Inventor 小川智辉矢羽田洋
Owner PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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