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

A playback device and recording medium technology, applied in the direction of data recording, record carrier type, recording signal processing, etc., can solve the problems of confusion of viewers, heavy burden of video decoder, and inability to reproduce, so as to promote development and activation, and improve The effect of informative value

CN103155547AInactive Publication Date: 2013-06-12PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2013-06-12
Estimated Expiration
Not applicable · inactive patent

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Abstract

Video streams, control programs, and an index table are recorded in a recording medium. The video streams include a progressive-picture video stream and an interlaced-picture video stream, and the frame rates for the video stream constructed from progressive pictures include a mandatory rate and an optional rate. The index table indicates the association between a plurality of titles and the control programs. A control program associated with a first play title and top menu title from among the titles excludes, from a reproduction target, a reproduction route with which pictures are progressive pictures and the frame rate is the optional frame rate, and instructs reproduction by way of a different reproduction route.
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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...

Examples

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,...