Mitsubishi Denki Kabushiki Kaisha

Mitsubishi Electric Corporation

Hidetoshi Mishima

Yoshinori Asamura

Takashi Itow

Ken Onishi

Tomohiro Ueda

Tadashi Kasezawa

Masato Nagasawa

Yoshiko Hatano

Yoshinobu Ishida

Hiroyuki Oohata

Satoshi Kurahashi

Shuji Sotoda

Takahiro Nakai

Hiroyuki Ohata

Yoshihiro Kiyose

Kouichi Shirakawa

Takashi Shinohara

Hideaki Maehara

Koji Okazaki

Mengxiong Wang

Momoyo Hino

Hiromu Hasegawa

Yoshimi Moriya

Akira Minezawa

Kazuyuki Miyazawa

Kenji Taira

Keiji Hatanaka

Tetsuro Wada

Tomoya Sawada

Eiji Ueda

Naohiro Shibuya

Takashi Iotow

An object of the present invention is to provide a water level measurement device and a shoreline extraction method each of which is capable of stably measuring the water level. A pixel selection unit () selects a pixel of interest () from a designated area () designated from a captured image (), and an identification image extraction unit () extracts identification images (), () each coming in contact with the pixel of interest (). The identification unit () calculates an identification strength indicating a degree to which an area corresponding to each of the identification images (), () is a water area, on a basis of the result of machine learning related to identification between the water area and a non-water area. The shoreline extraction unit () extracts a shoreline in the captured image from the identification strength of the area corresponding to each of the identification images (), (), on a basis of the result of machine learning related to the identification between the water area and the non-water area by the learning unit ().

Water level measurement device and shoreline extraction method

An image feature map generating unit () generates, on the basis of feature amounts extracted from a plurality of images successively captured by a camera (), an image feature map which is an estimated distribution of the object likelihood on each of the images. An object detecting unit () detects an object on the basis of the image feature map generated by the image feature map generating unit ().

Object detection device and object detection method

In a high-efficiency encoder which performs motion-compensation prediction, an intra-field is set every n fields. The presence of a scene change is detected. When a scene change occurs, a reference picture of motion-compensation prediction is switched, or the field immediately after the scene change is set as an intra-field.

High-efficiency encoder and video information recording/reproducing apparatus

High efficiency encoder and video information recording/reproducing apparatus

In a video disk recording/playback device for converting a digital video signal or the like into high-efficiency coded data and recording the coded data on a video disk, or for restoring high-efficiency coded data recorded on the video disk and reproducing an output image, wherein said digital video signal is composed of a succession of video signals of a plurality of frames and including an I picture encoded within a frame, a P picture interframe coded by forward motion compensation with reference to said I picture and/or another P picture, and a B picture interframe coded by motion compensation in both directions with reference to said I and/or P pictures temporally preceding and succeeding the B picture, there are further provided a means for recording in an image information table set up on said video disk all of the start addresses of coded data representing selected images such as images to be retrieved and the start addresses of data containing information required for reproducing the coded data. With the above configuration, retrieval of all kinds of images of I, P, and B pictures is possible by recording all of the start addresses of coded data representing selected images such as images to be retrieved and the start addresses of data containing information required for reproducing the coded data in the image information table on the video disk.

Disk media, and method of and device for recording and playing back information on or from a disk media

A digital video signal record and playback device for recording on a recording medium a digital video signal coded by using a motion compensation prediction and an orthogonal transform and playing back data from the recording medium. In a data arrangement of a digital video signal, an I picture which can be independently represented in a picture is divided into n areas in the vertical direction, and the data is arranged from the front of one GOP in the unit of area by giving a priority to an area located at the center of the screen. A playback picture is outputted by playing back the I picture read from the recording medium in the unit of area unit. In the case where the whole I picture area cannot be read within a definite time, the area which cannot be read are interpolated by the use of the data of the preceding screen.

Digital video signal record and playback device and method for selectively reproducing desired video information from an optical disk

Digital video signal record and playback device and method for giving priority to a center of an I frame

Disk media, and method of and device for playing back information on or from a disk media

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Nagaokakyo, Japan

Hidetoshi Mishima